bluuebunny/crossref_metadata_2025 huggingface dataset:
The value of hemoglobin-to-red blood cell distribution width ratio (Hb/RDW), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR) for the diagnosis of nasopharyngeal cancer
Authors: Lin Zhongyuan , Zhang Xuan , Luo Yu , Chen Yanyun , Yuan Yulin
Published: July 2021

The clinical significance of hemoglobin-to-red blood cell distribution width (Hb/RDW) for the diagnosis of nasopharyngeal cancer (NPC) has not been reported yet. This study aimed to evaluate the value of preoperative Hb/RDW, neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR) for the diagnosis of NPC.

A total of 180 NPC patients (NPC group) and 149 healthy subjects (control group) were recruited to assess the value of Hb/RDW, NLR, and PLR for the diagnosis of NPC.

It was noted that NLR and PLR were significantly higher in the NPC group than those in the control group (P < .001); however, Hb/RDW was lower in the NPC group compared with that in the control group (P < .001). NLR was also remarkably different between patients of stage I+II and those of stage III+IV (P = .043), and that was different in patients with lymph node metastases or not (P = .030). Besides, PLR was significantly different in patients with serosal invasion or not (P = .031). In receiver operating characteristic curve, compared with Hb/RDW alone (sensitivity, 66.67%; specificity, 85.23%), the sensitivity (67.78%, 72.78%) and specificity (89.62%, 90.6%) of Hb/RDW with NLR and PLR were both increased. Furthermore, Hb/RDW combined with NLR area under the ROC (AUC), 0.824; 95% confidence interval (CI): 0.779–0.864, P = .0080) or PLR (AUC: 0.851, 95% CI: 0.808–0.888, P = .0002) had a greater AUC value for the diagnosis of NPC compared with Hb/RDW alone (AUC: 0.781, 95% CI: 0.732–0.824).

Hb/RDW can be used as a valuable indicator for auxiliary diagnosis of NPC. Preoperative Hb/RDW combined with NLR or PLR is of great significance in the auxiliary diagnosis and pathological staging of NPC.
Effect of folic acid combined with pravastatin on arteriosclerosis in elderly hypertensive patients with lacunar infarction
Authors: Li Chunxia , Bu Xingpeng , Liu Yaru
Published: July 2021

This study aimed to assess the effect of folic acid combined with pravastatin on atherosclerosis-related indexes in elderly patients with hypertension complicated with lacunar cerebral infarction.

A total of 134 elderly hypertensive patients with lacunar cerebral infarction were randomly divided into 3 groups using the random number table method. Group A, the folic acid group, had 45 cases and received low-dose folic acid (0.8 mg/d) treatment on the basis of antihypertensive treatment. Group B, the pravastatin group, had 45 cases and received pravastatin (20 mg/d) treatment on the basis of antihypertensive treatment. Group C, the folic acid combined with the pravastatin group, had 44 cases. Members of this group received pravastatin (20 mg/d) and low-dose folic acid (0.8 mg/d) based on antihypertensive treatment. Levels of folic acid, homocysteine (Hcy), tumor necrosis factor alpha (TNF-a), matrix metallopeptidase 9 (MMP-9), cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C) were measured by ELISA before treatment in all 3 groups. Carotid intima-media thickness (IMT) was measured using ultrasound, and systolic and diastolic blood pressure were measured with a mercury column. After 8 weeks of treatment, the levels of folic acid, Hcy, TNF-a, MMP-9, TC, LDL-C, and systolic and diastolic blood pressure were compared among the 3 groups. IMT levels were measured at 12 weeks of treatment.

After 8 weeks of treatment, compared with group B, patients in groups A and C had folic acid levels significantly higher than baseline levels, with significantly lower Hcy levels (both P < .05). Patients in group C presented significantly decreased TNF-a, MMP-9, TC, and LDL-C levels and systolic and diastolic blood pressure after 8 weeks of treatment, compared with those in groups A and B (both P < .05). These patients also showed significantly decreased IMT levels compared with those in the other groups (P < .05).

Low-dose folic acid combined with pravastatin in elderly patients with lacunar cerebral infarction can reduce the level of homocysteine, improve the degree of carotid atherosclerosis, protect vascular endothelium, and reduce blood lipids and blood pressure, presenting better benefits than pravastatin alone.
The noninferiority of transcatheter aortic valve implantation compared to surgical aortic valve replacement for severe aortic disease
Authors: Zhao Peng-Ying , Wang Yong-Hong , Liu Rui-Sheng , Zhu Ji-Hai , Wu Jian-Ying , Song Bing
Published: July 2021

Background:

Currently, transcatheter aortic valve implantation (TAVI) as an effective and convenient intervention has been adopted extensively for patients with severe aortic disease. However, the efficacy and safety of TAVI have not yet been well evaluated and its noninferiority compared with traditional surgical aortic valve replacement (sAVR) still lack sufficient evidence. This meta-analysis was designed to comprehensively compare the noninferiority of TAVI with sAVR for patients with severe aortic disease.

Methods:

A systematic search of PubMed, Embase, Cochrane Library, and Web of Science up to October 1, 2020 was conducted for relevant studies that comparing TAVI and sAVR in the treatment of severe aortic disease. The primary outcomes were early, midterm and long term mortality. The secondary outcomes included early complications and other late outcomes. Two reviewers assessed trial quality and extracted the data independently. All statistical analyzes were performed using the standard statistical procedures provided in Review Manager 5.2.

Results:

A total of 16 studies including 14394 patients were identified. There was no difference in 30-day, 1-year, 2-year, and 5-year all-cause or cardiovascular mortality as well as stroke between TAVI and sAVR. Regarding to the 30-day outcomes, compared with sAVR, TAVI experienced a significantly lower incidence of myocardial infarction (risk ratio [RR] 0.62; 95% confidence interval [CI] 0.40–0.97; 5441 pts), cardiogenic shock (RR 0.34; 95% CI 0.19–0.59; 1936 pts), acute kidney injury (AKI) > stage 2 (RR 0.37; 95% CI 0.25–0.54; 5371 pts), and new-onset atrial fibrillation (NOAF) (RR 0.29; 95% CI 0.24–0.35; 5371 pts) respectively, but higher incidence of permanent pacemaker implantation (RR 3.16; 95% CI 1.61–6.21; 5441 pts) and major vascular complications (RR 2.22; 95% CI 1.14–4.32; 5371 pts). Regarding to the 1- and 2-year outcomes, compared with sAVR, TAVI experienced a significantly lower incidence of NOAF, but higher incidence of neurological events, transient ischemic attacks (TIA), permanent pacemaker and major vascular complications respectively. Regarding to the 5-year outcomes, compared with sAVR, TAVI experienced a significantly lower incidence of NOAF, but higher incidence of TIA and reintervention respectively.

Conclusions:

Our analysis shows that TAVI was equal to sAVR in early, midterm and long term mortality for patients with severe aortic disease. In addition, TAVI may be favorable in reducing the incidence of both early, midterm and long term NOAF. However, pooled results showed superiority of sAVR in reducing permanent pacemaker implantation, neurological events, TIA, major vascular complications and reintervention.
Meta-analyzing the factors affecting the efficacy of gliflozins in patients with heart failure based on heart failure trials
Authors: Yin Daogen , Qiu Mei , Wei Xubin , Duan Xueyan
Published: July 2021

Background:

The factors affecting the efficacy of gliflozins in patients with heart failure (HF) are not clear. We aimed to evaluate the effects of 11 important factors on the efficacy of gliflozins in HF patients.

Methods:

Randomized trials assessing gliflozins in HF patients were included. The outcome of interest was composite HF outcome, a composite of cardiovascular death, or hospitalization for HF. Meta-analysis was done according to 11 factors: status of type 2 diabetes, sex, use of angiotensin receptor-neprilysin inhibitor, age, history of hospitalization for HF, estimated glomerular filtration rate, body mass index, New York Heart Association (NYHA) class, race, region, and left ventricular ejection fraction.

Results:

Compared with placebo, gliflozins reduced the risk of composite HF outcome by 14% in the subgroup of patients with NYHA class III or IV (hazard ratios [HR] 0.86, 95% confidence intervals [CI] 0.75–0.99), by 34% in the subgroup of patients with NYHA class II (HR 0.66, 95% CI 0.59–0.74), and by 85% in the subgroup of patients with NYHA class I (HR 0.15, 95% CI 0.03–0.73). This between-group difference was approximate to statistical significance (P
subgroup = .06). The benefit of gliflozins in HF patients was not affected by the other 10 factors (P
subgroup ≥ .123).

Conclusions:

Gliflozins are applicable for a broad population of HF patients as for preventing HF events, while gliflozins may lead to greater benefits in patients with mild HF than in those with moderate to severe HF.
District-level HIV estimates using the spectrum model in five states of India, 2017
Authors: Kumar Pradeep , Sahu Damodar , Rajan Shobini , Mendu Vishnu Vardhana Rao , Das Chinmoyee , Kumar Arvind , Chandra Nalini , Camara Bilali , Rai Sanjay , Arumugam Elangovan , Godbole Sheela Virendra , Singh Shri Kant , Kant Shashi , Pandey Arvind , Reddy Dandu Chandra Sekhar , Mehendale Sanjay
Published: July 2021

Decentralized response has been the hallmark of the National AIDS Control Programme in India. District-level HIV burden estimates quantifying the distribution of the epidemics are needed to enhance this decentralized response further to monitor the progress on prevention, testing, and treatment interventions. In this paper, we describe the methodology and results of district-level estimates using the Spectrum model piloted in 5 states of India under National AIDS Control Programme.

Using state spectrum model for HIV estimations 2017, we disaggregated state results by the district in pilot states. Each district was considered a subepidemic and HIV epidemic configuration was carried out in its general population as well as in key population. We used HIV surveillance data from antenatal clinics and routine pregnant women testing to model the general population's epidemic curve. We used HIV prevalence data available from HIV sentinel surveillance and integrated biological and behavioral surveys to inform the epidemic curve for key population. Estimation and projection packgage classic platform was used for the curve fitting. District-wide estimates extracted from subpopulation summary in Spectrum results section were used to calculate relative burden for each district and applied to approved State HIV Estimations 2017 estimates.

No district in Tamil Nadu had an adult HIV prevalence of higher than 0.5% except for one, and the epidemic seems to be declining. In Maharashtra, the epidemic has shown a decline, with all except 5 districts showing an adult prevalence of less than 0.50%. In Gujarat and Uttar Pradesh, few districts showed rising HIV prevalence. However, none had an adult prevalence of higher than 0.50%. In Mizoram, 6 of 8 districts showed a rising HIV trend with an adult prevalence of 1% or more in 5 districts.

Disaggregation of state-level estimates by districts provided insights on epidemic diversity within the analyzed states. It also provided baseline evidence to measure the progress toward the goal of end of AIDS by 2030.
The prevalence and genotype distribution of human papilloma virus in cervical squamous intraepithelial lesion and squamous cell carcinoma in Taizhou, China
Authors: Jin Rongrong , Yang Xumei , Bao Jingjing , Zhang Wenyan , Dou Rongrong , Yuan Donglan , Yang Qinxin , Jiang Lin , Yu Hong
Published: July 2021

Human papillomavirus (HPV) infection is a common sexually transmitted disease worldwide and the leading cause of cervical cancer. Current vaccines do not cover all HPV genotypes whereas the distribution of HPV genotypes varies in different geographic regions. The study aimed to investigate the distribution of HPV genotypes in patients with cervical squamous intraepithelial lesion (SIL) and cervical squamous cell carcinoma (SCC) in Taizhou City of Jiangsu Province, China. A total of 940 patients including 489 cases with cervical low-grade squamous intraepithelial lesions (LSIL), 356 cases with cervical high-grade squamous intraepithelial lesions (HSIL), and 95 cases with cervical SCC, underwent a biopsy or surgery in Taizhou People's Hospital between January 2019 and December 2019. The HPV testing results were retrospectively analyzed. The overall prevalence of any, high-risk, and low-risk HPV was 83.83%, 81.91%, and 12.13%, respectively. The 5 most common HPV genotypes were HPV16 (35.64%), HPV52 (16.91%), HPV58 (13.94%), HPV33 (8.94%), and HPV18 (7.98%). The prevalence of any and HR-HPV in SCC was significantly higher than those in LSIL and HSIL, while the prevalence of LR-HPV in SCC was significantly lower than those in LSIL and HSIL (P < .01). Single and dual HPV infections were prevalent in SCC, LSIL, and HSIL. Furthermore, the prevalence of dual HPV infection in SCC was significantly higher than those in LSIL and HSIL (P = .002). The HPV prevalence varied by age, being highest among women with SCC, LSIL, and HSIL aged 40 to 49 years, 40 to 49 years, and 50 to 59 years, respectively. In conclusion, the findings revealed a very high prevalence of HPV in women with cervical lesions in Taizhou. Routine HPV tests must cover all common HPV genotypes in clinical practice.
Multiple small bowel perforations due to cytomegalovirus related immune reconstitution inflammatory syndrome in an HIV patient
Authors: Wang Yanli , Lin Xuyong , Li Yuji , Wen Ying
Published: July 2021

Rationale:

The presentation of multiple intestinal perforations is a severe complication of enteric cytomegalovirus (CMV) infection, sometimes associated with immune reconstitution inflammatory syndrome (IRIS) after the initiation of antiretroviral therapy (ART) in patients with human immunodeficiency virus (HIV). Here we reported a rare case of a patient with HIV infection who developed multiple perforations in the small bowel shortly after ART initiation without any prodromal gastrointestinal symptoms. We also reviewed the literature of reported cases to clarify their clinical characteristics for early diagnosis and rapid intervention.

Patient concerns:

A patient with HIV presented with fever after 16 days of ART initiation and was admitted to our hospital. He was treated with intravenous ganciclovir due to persistent CMV viremia. The fever resolved 10 days later. However, he reported persistent left lower abdominal pain.

Diagnoses:

The patient was diagnosed with multiple small bowel perforations, CMV-related IRIS, and acquired immune deficiency syndrome. An upright abdominal x-ray in a tertiary level hospital revealed bilateral moderate intraperitoneal free air. We performed a pathological examination and metagenomic next-generation sequencing. CMV enteritis was confirmed by immunohistochemical staining and other opportunistic infections were excluded by metagenomic next-generation sequencing.

Interventions:

The patient was treated with intravenous ganciclovir and 24 hours later, the patient underwent exploratory laparotomy. Partial resection and surgical repair of the small intestine were performed.

Outcomes:

The patient ultimately died from intestinal obstruction and septic shock 55 days after surgery.

Lessons:

Perforations due to CMV-related IRIS are very rare, and usually appear shortly after ART initiation. Most cases lack the prodromal symptoms of abdominal pain and diarrhea. Intestinal perforations are lethal, and early detection and surgical treatment are lifesaving.
Individualized positive end-expiratory pressure (PEEP) during one-lung ventilation for prevention of postoperative pulmonary complications in patients undergoing thoracic surgery
Authors: Li Pule , Kang Xia , Miao Mengrong , Zhang Jiaqiang
Published: July 2021

Background:

Positive end-expiratory pressure (PEEP) is an important part of the lung protection strategies for one-lung ventilation (OLV). However, a fixed PEEP value is not suitable for all patients. Our objective was to determine the prevention of individualized PEEP on postoperative complications in patients undergoing one-lung ventilation.

Method:

We searched the PubMed, Embase, and Cochrane and performed a meta-analysis to compare the effect of individual PEEP vs fixed PEEP during single lung ventilation on postoperative pulmonary complications. Our primary outcome was the occurrence of postoperative pulmonary complications during follow-up. Secondary outcomes included the partial pressure of arterial oxygen and oxygenation index during one-lung ventilation.

Result:

Eight studies examining 849 patients were included in this review. The rate of postoperative pulmonary complications was reduced in the individualized PEEP group with a risk ratio of 0.52 (95% CI:0.37–0.73; P = .0001). The partial pressure of arterial oxygen during the OLV in the individualized PEEP group was higher with a mean difference 34.20 mm Hg (95% CI: 8.92–59.48; P = .0004). Similarly, the individualized PEEP group had a higher oxygenation index, MD: 49.07mmHg, (95% CI: 27.21–70.92; P < .0001).

Conclusions:

Individualized PEEP setting during one-lung ventilation in patients undergoing thoracic surgery was associated with fewer postoperative pulmonary complications and better perioperative oxygenation.
The educational and psychological impact of the COVID-19 pandemic on medical students
Authors: Bachir Bachir , Naji Amal , Tfayli Arafat
Published: July 2021

The SARS- CoV-2 virus has been a public health crisis since its emergence in 2019. It has affected nearly all aspects of life. Education has been particularly hit, and a lot of effort has been put to implement more and more virtual platforms through online classes, meetings and conferences. Medical education has also been affected, especially because of the need for hands-on education, specifically in the clinical setting of the last 2 years. This had a huge psychological impact on the medical students currently enrolled in medical schools around the globe.

In this descriptive study, we sent all medical students at the American University of Beirut Faculty of Medicine (AUBFM) an online anonymous survey by email. The survey started with general questions (age, gender and medical school year), followed by 3 sections that contain questions pertaining to the attitudes of medical students towards clinical rotations and online classes. Data was then analyzed using SPSSv24 and was then reported as percentages.

Students were almost equally divided among the medical school classes (Med 1, 2, 3, and 4). The majority of clinical students (Med 3 and Med 4) reported that they feel nervous during their rotations in the hospital. Moreover, they reported that they have increased their use of disinfectants and personal protective equipment since the emergence of the pandemic. Moreover, the majority of medical students reported that they feel more stressed after shifting to online classes. Medical students also reported that they would be willing to go back to on-campus classes.

This study aimed at describing the response of medical students at AUBFM to the COVID-19 pandemic in terms of stress. Limited data exists in the literature concerning the psychological impact of the COVID-19 pandemic on medical students in the middle East. Medical students reported that they feel more stressed and nervous during their clinical rotations and after the shift to online education, affecting their academic and social life. Further studies using a larger sample size are needed.
Electrocardiogram Before Tricyclic Antidepressant Use: Minimal Impact in Pediatric Functional Gastrointestinal Disorders
Authors: Klein Lauren J. , Chamberlain Reid C. , Bonello Kristin , Milazzo Angelo S. , Noel Richard J.
Published: July 2021

Objectives:

The aim of this study was to determine the effect of electrocardiogram (ECG) findings on the initiation of tricyclic antidepressants (TCAs) for functional gastrointestinal disorders (FGIDs) and to evaluate cardiac outcomes related to low dose TCA use.

Methods:

We performed a retrospective chart review of all pediatric outpatients at a tertiary pediatric hospital with an ECG ordered by a pediatric gastroenterologist when considering initiation of a TCA between January 2011 and February 2018. We collected demographics, previous cardiovascular testing results, TCA dosing, and pertinent outcomes, including cardiology referrals, emergency department, and hospital admissions, and death during the study period. All ECGs were reviewed for corrected QT (QTc) interval, heart rate, and other abnormalities.

Results:

Of 233 patients with screening ECGs, most (84.1%) were prescribed a TCA. Functional abdominal pain or dyspepsia account for 82.0% of diagnoses. Initial TCA dosing of amitriptyline varied widely, 10–50 mg/day, and the dose was not associated with QTc intervals. TCAs were not started in only 1.7% (4/233) due to ECG results. A significant ECG abnormality prompting cardiology referral was found in eight (3.4%) with a prolonged QTc interval in one (0.4%). In 10.7% (25/233) of patients, screening ECG was obtained despite available ECG in the chart. No deaths and no emergency department or hospital visits for arrhythmia or drug overdose occurred.

Conclusion:

Screening ECGs infrequently influence TCA initiation and may lead to increased resource utilization. The overall frequency of cardiology referral due to ECG results is low. Serious adverse cardiac events are unlikely with low dose TCA administration.
Experience Using Ustekinumab in Pediatric Patients With Medically Refractory Crohn Disease
Authors: Kim Francis S. , Patel Perseus V. , Stekol Emily , Ali Sabina , Hamandi Hassan , Heyman Melvin B. , Verstraete Sofia G.
Published: July 2021

Introduction:

Ustekinumab (UST), a human monoclonal antibody against interleukin‐12 and 23, is approved to treat adult patients with psoriasis or Crohn disease (CD). Outcomes data for off‐label use in pediatric patients with CD are limited.

Aim:

We conducted a retrospective cohort study to analyze the long‐term efficacy of UST, including dose adjustments, in the treatment of pediatric patients with medically refractory CD. Adverse events were documented.

Methods:

We identified 40 pediatric patients with CD treated with UST between January 1, 2016 and December 31, 2019. Electronic medical records were reviewed for demographics, Paris Classification, significant comorbidities, previous CD therapy, adverse events after initiation, and surveillance markers at the time of their first dose and most recent clinic visit. A validated abbreviated pediatric CD activity index (aPCDAI) was used to assess response to therapy.

Results:

Thirty‐eight pediatric patients with CD, including 34.2% with stricturing or penetrating disease, were analyzed after initiation of treatment with UST. Median age at diagnosis of CD was 12.5 years, and median age at UST induction was 17.2 years. No patients were anti‐TNF‐naive, and 34.2% were previously exposed to 2 or more anti‐TNF agents. At time of last follow‐up, 84.2% of patients remained on UST for a median duration on UST of 62.1 weeks, and 60.5% achieved clinical remission. Patients had significant improvement in aPCDAI scores, clinical remission rates, albumin, and hematocrit, and 89.5% of patients had no significant adverse events. Similar results were observed among those who required dose adjustment, including 61.1% achieving clinical remission, and among those with perianal disease, including 38.5% achieving clinical remission.

Conclusions:

Our data suggest that, within our cohort of pediatric patients with CD, UST has long‐term efficacy with no observed safety concerns. Dose adjustment may be helpful in achieving clinical remission.
COVID-19
Authors: Brockopp Dorothy , Monroe Martha , Davies Claire C. , Cawood Meghan , Cantrell Donita
Published: July 2021

Objective

The goal of this qualitative phenomenological study was to explore in-depth, critical care nurses' (CCNs) lived experience while caring for coronavirus disease 2019 (COVID-19) patients during the pandemic.

Background

CCNs play an important role during pandemics characterized by highly contagious, life-threatening disease. Understanding the experience of CCNs during a pandemic is particularly important because of the high rate of burnout within this group, as well as a shortage of these caregivers across the globe.

Methods

Using Heidegger's interpretive phenomenological approach, interviews were conducted with 10 CCNs caring for COVID-19 patients. The goal of the interviews was to access a deep layer of understanding regarding participants' lived experience.

Results

Themes of role frustration, emotional and physical exhaustion, and the importance of presence were revealed.

Conclusion

Themes revealed suggest a number of actions hospital administrators could take to support CCNs as they experience the challenges of a pandemic.
Time from Pain Assessment to Pain Intervention
Authors: Manworren Renee C.B. , Atabek Ata
Published: July 2021

OBJECTIVE

The purpose of this study was to describe factors that influence nurses' time from pain assessment to intervention for acute postsurgical pain.

BACKGROUND

Nurses' time is a limited resource that must be optimized to manage patients' pain within budget constraints. Little is known about processes and activities nurses negotiate to manage pain.

METHODS

Human factors engineering and ethnography were used to quantify factors influencing time from pain assessment to intervention.

RESULTS

On the basis of 175.5 observation hours, nurses spent 11% of shifts (mean, 83 minutes) on pain care activities. Time from alert to intervention with PRN analgesics or biobehavioral strategies for 58 cases ranged from 0 to 48 minutes (mean, <11 minutes). Five factors influenced timeliness.

CONCLUSIONS

Nurses most efficiently managed postsurgical pain by giving analgesics ordered PRN on a scheduled basis. Nurse leaders can empower prompt responses to patients' pain through delegation, process improvements, real-time monitoring, and prescriber engagement.
A Novel Precise Optical Navigation System for Craniomaxillofacial Surgery Registered With an Occlusal Splint
Authors: Hou Yikang , Chai Gang , Qi Zuoliang
Published: July 2021

Background:

An augmented reality tool allows visual tracking of real anatomical structures and superimposing virtual images, so it can be used for navigation of important structures during surgery.

Objectives:

The authors have developed a new occlusal splint-based optical navigation system for craniomaxillofacial surgery. In this study, the authors aim to measure the accuracy of the system and further analyze the main factors influencing precision.

Methods:

Ten beagle dogs were selected and a three-dimensional model was established through computed tomography scanning, dental model making, and laser scanning, and then registration was performed according to the tooth marking points. The bilateral mandibular osteotomy was performed on Beagle dogs under navigation system based on the occlusal splint. The left side was taken to compare the deviation between the preoperative plan and the surgical results, and the accuracy of distance and angle and the stability of the system were analyzed.

Results:

The average position deviation between the preoperative design and intraoperative navigation was: 0.01 ± 0.73 mm on the lateral height of the mandibular ramus, 0.26 ± 0.57 mm on the inner height of the mandibular ramus, and 0.20 ± 0.51 mm on the osteotomy length. The average angle deviation is 0.94° ± 1.38° on the angle between the mandibular osteotomy plane and ramus plane and 0.66° ± 0.97° on the angle of the retained mandibular angle. And most of the data showed good consistency.

Conclusions:

In summary, the accuracy of the system can meet clinical requirements and can be used as a useful tool to improve the accuracy of craniomaxillofacial surgery.
Validation of a Chin Retrusion Scale for Chinese Subjects
Authors: Junxue An , Chen Lujia , Xiaobing Ma , Qu Jiazhi , Schumacher Andrew , Dong Li
Published: July 2021

Chin augmentation procedures are gaining in popularity. The purpose of this study was to validate the China (Allergan) Chin Retrusion Scale (CACRS) and to evaluate the reliability of the scale. A team of 10 physicians based in Beijing, China, consisting of 1 principal investigator and 9 independent raters, assessed a pool of subject images. Using standardized equipment to capture 2-dimensional images, 100 subjects were photographed from a left, lateral, 90° view. Two measures were used to assess the validity of the scale: rater evaluations of clinically significant differences in 52 pairs of images and rater assessment of chin retrusion using the CACRS to grade the 100 images. The CACRS demonstrated almost perfect inter-rater agreement during 2 validation sessions, with intraclass correlation coefficients of 0.89 and 0.90 at sessions 1 and 2, respectively. Overall inter-rater agreement for all 9 raters was almost perfect, with a weighted kappa of 0.82. Based on inter- and intra-rater agreement, the CACRS was validated for physician ratings of chin retrusion in Chinese subjects. Results from clinical significance evaluations indicated that a 1-grade difference between image pairs was considered clinically meaningful for the CACRS. The CACRS is a validated and reliable photonumeric scale for the assessment of chin retrusion in Chinese men and women. The scale is a clinically significant reference tool for evaluating the effect of chin augmentation.
The Boundless World of Cranioplasty: A Multicenter Retrospective Study and Therapeutic Flow-Chart Patient-Specific Based
Authors: Lo Bue Enrico , Scalia Gianluca , Nicoletti Giovanni Federico , Maugeri Rosario , Iacopino Domenico Gerardo , Zabbia Giovanni , Umana Giuseppe Emmanuele , Graziano Francesca
Published: July 2021

Background:

Cranioplasty is both a functional and aesthetical therapeutic option. In the clinical scenario every cranioplasty's material is potentially qualified to achieve the goal of calvarian reconstruction but there is a lack of agreement about the optimum choice, especially between the heterologous ones. The choice of cranioplasty widely depends on surgeon's personal preferences. In this retrospective multicentric study a comparative analysis of hydroxyapatite or titanium cranioplasties was carried on analyzing the main factors considered by the surgeon to choose a material rather than another one. Our results and data were compared with those reported in the scientific literature and a flow-chart regarding the therapeutic approach in the choice of the most suitable cranioplasty was proposed and discussed.

Methods:

The authors present a multicentric study considering 2 groups of patients who underwent 2 different kinds of cranioplasty: hydroxyapatite and titanium. The outcomes measures included the surgical timing and the maintenance of post-operative subgaleal drain.

Results:

A total of 40 patients that had cranioplasty treatment were evaluated. The surgical technique was analyzed. In patients that underwent titanium cranioplasty we observed a reduction in the operative times and in subgaleal drain maintenance. In relation to the age, comorbidity, and neurological status a score, called most suitable material (MSM), was elaborated and a therapeutic algorithm is proposed.

Conclusions:

This study confirms the known advantages and drawback of titanium and hydroxyapatite prostheses. Thanks to the lessons learned from our experience on this field, we elaborated the MSM score that coupled with the therapeutic flow-chart proposed could address the choice of the MSM for a specific patient.
Facial Dysmorphology in Saethre-Chotzen Syndrome
Authors: Junn Alexandra , Dinis Jacob , Lu Xiaona , Forte Antonio Jorge , Mozaffari Mohammad Ali , Phillips Sarah , Lopez Joseph , Alonso Nivaldo , Persing John A. , Alperovich Michael
Published: July 2021

Purpose:

Classic features of Saethre-Chotzen syndrome (SCS) described in the literature include a prominent nasal bridge, eyelid ptosis, telorbitism, maxillary hypoplasia, and mandibular prognathism. The purpose of this study was to evaluate objectively the bony features of SCS.

Methods:

Preoperative computer tomography scans of 15 SCS patients, 23 normal controls, 13 bicoronal nonsyndromic, and 7 unicoronal nonsyndromic craniosynostosis patients were included for analysis. Unaffected controls and nonsyndromic patients were age- and sex-matched to SCS patients. Morphometric cephalometrics were analyzed using three-dimensional computer tomography reconstructions. Mann–Whitney U were used to compare facial measurements between SCS and normal and nonsyndromic craniosynostosis controls.

Results:

Telorbitism was present in bicoronal SCS patients only (P = 0.04) but absent in the unicoronal and bicoronal/metopic cohorts. The angle of the nasal bone relative to the sella was not different between SCS and controls (P = 0.536), although the angle of the nasal bone relative to the forehead was decreased in SCS by 15.5° (P < 0.001). Saethre-Chotzen syndrome had a 2.6° maxillary retrusion relative to controls (P = 0.03). In addition, SCS patients aged 4 to 7 months had a wider (39.34 versus 35.04, P = 0.017) and anteroposteriorly foreshortened (32.12 versus 35.06, P = 0.039) maxilla. There was no difference in mandibular prognathism among SCS patients as measured by the sella-nasion-B point angle compared to controls (P = 0.705).

Conclusions:

Despite classic descriptions, on morphometric analysis SCS patients did not demonstrate consistency across all suture subtypes in terms of telorbitism, a broad nasal bridge, or mandibular prognathism. Rather, SCS subtypes of SCS based on suture pathology more closely resemble nonsyndromic patients.
Challenging the Norm: Is Routine Use of Cranial CT in Evaluation of Craniosynostosis Necessary?
Authors: Fahradyan Artur , Daneshgaran Giulia , Hoffman Trevor L. , Wexler Andrew , Francis Stacey H.
Published: July 2021

Background:

Cranial CT is routinely taught to be the gold standard for diagnosis of craniosynostosis and used by craniofacial teams for suspected nonsyndromic single suture craniosynostosis. Given the risks associated with infant CTs, do these scans provide significantly enhanced diagnostic accuracy compared to the physical exam when performed by an experienced clinical provider?

Method:

A retrospective chart review was performed for children who underwent corrective surgery for nonsyndromic, single-suture craniosynostosis over an 11 year period by a single craniofacial team. Ages at presentation and surgery, preoperative clinical diagnosis and imaging, co-existing radiographic findings, and correlation with the intraoperative diagnosis were analyzed.

Results:

A total of 138 patients were included in this study. The mean age was 4.2 months at initial craniofacial evaluation, and 8.0 months at time of surgery. Twenty-seven patients received imaging prior to our clinic. Of those, 21 had plain radiography and 6 had CT scans. Of the remaining 111 patients referred without imaging, craniosynostosis was clinically diagnosed in 102 (92%), whereas 9 (8%) had an unclear clinical diagnosis. Of these 9, 1 (1%) was diagnosed clinically at follow-up exam, and the remaining 8 (7%) were diagnosed using radiography (3 CT scans, 5 plain radiographs). In all patients, the preoperative diagnosis was confirmed during intraoperative assessment.

Conclusions:

Cranial CT was not needed by experienced craniofacial providers in 93% of nonsyndromic, single-suture craniosynostosis. Imaging obtained before craniofacial clinic referral may have been unnecessary. These findings question the classic teaching that preoperative cranial CT is the gold standard for diagnosis in infants with nonsyndromic, single-suture craniosynostosis.
Comparison of Two Scoring Systems in Pediatric Open Globe Injuries
Authors: Dursun Özer , Özer Ömer , Vatansever Mustafa , Dinç Erdem , Oktay Özgün , Örekici Temel Gülhan
Published: July 2021

Purpose:

The aim of this study is to determine the demographic characteristics of pediatric open globe injuries, evaluate the ocular trauma scores (OTS), and predict the visual outcomes.

Methods:

All patients with pediatric open globe injuries who applied to Department of Ophthalmology, Faculty of Medicine, Mersin University between January 2018 and December 2019 were included in this study. Age, gender, type of injury, time of admission, time to surgery, OTS, and pediatric ocular trauma score (POTS) were calculated for each patient. The relation between these findings and final visual acuity (VA) after 12 months of follow-up was examined.

Results:

Forty-two eyes of 41 patients were included in this study. The most common injuries observed were sharp objects such as knives (23.8%) and stones (23.8%). The wound locations were zone I in 36 patients (85.7%) and zone II in 6 patients (14.3%). The most common concomitant eye pathologies were iris prolapse in 37 (88.1%) and hyphema in 29 (69.1%). The mean original OTS was 77.21 and the mean POTS was 46.78. Association between OTS/POTS and final VA was very good (Kendall Tau-b = 0.665, P < 0.001, Kendall Tau-b = 0.505, P < 0.001, respectively). The level of agreement between the predicted VA for OTS and that for POTS was almost perfect (kappa = 0.8726).

Conclusions:

This study shows that the original OTS is still the gold standard in pediatric cases.
Virtual Surgical Planning Combined With Intraoperative Navigation in Mandibular Bilateral Sagittal Split Osteotomy for Accurate Placement of Patient Specific Implants
Authors: Järvinen Sanna , Suojanen Juho , Suomalainen Anni , Stoor Patricia
Published: July 2021

The aim of the study is to evaluate clinical methods to obtain a significantly improved fitting of patient specific implants (PSI) in bilateral sagittal split osteotomies and to evaluate the use of electromagnetic navigation as a potential guide for condyle positioning. A prospective study using (1) a solid bite registration index during preoperative computed tomography, (2) critical planning with regard to the condylar rotation, (3) a piezoelectric saw throughout the mandibular osteotomy, and (4) intraoperative navigation to determine the position of the PSIs and the mandibular segments intraoperatively was performed. Ten patients were treated. Five underwent bilateral sagittal split osteotomies and 5 bimaxillary osteotomy. All of the PSIs fitted precisely onto the mandible and the screws into the predrilled screw holes. The predetermined occlusion was obtained. A precise fitting of the PSIs in the lower jaw seems to be possible to achieve with above-mentioned methods. The intraoperative navigation system gives a possibility to verify the surgical outcome during surgery but is not accurate enough to be used as a virtual drill guide alone.
Surgery First and Clear Aligners on Relapsed Condylar Hyperplasia
Authors: Meuli S. , Amodeo G. , Marrocco S. , Brugnami F. , Scopelliti D.
Published: July 2021

Condylar hyperplasia is (CH) a mandibular malformation that involves a change in the size and morphology of the condylar neck and head. The CH is an abnormality that usually occurs unilaterally and affects equally both men and women. Its etiology is controversial in its own right. Under this condition, mandibular growth occurs in all the 3 planes of space, but more predominantly in one of them. Treatment protocols are variable, but one of the best treatment choices is high condylectomy. Compared to the past, the change in the treatment protocol, as well as the innovations in both surgical and orthodontic technology, allowed a simplification of the therapeutic path, reduced patient discomfort and ensured more stable long-term postsurgical results.

The authors present a case of a 40-year-old female patient with relapsed of unilateral CH, treated surgically for the second time and with orthodontic treatment with clear aligners. The clear aligners orthodontic treatment is now considered one the best treatment orthodontic options. In this case, considering the relapse of the hyperplasia and the need of a new orthodontic treatment we decide to use this technique to reduce patient discomfort and teeth force appliance.
Comparison of Two Botulinum Toxin Injection Methods for Treatment of Excessive Gingival Display
Authors: Aldhaher Hussain Adnan , Bede Salwan Y.
Published: July 2021

Background:

Hyperfunction of the muscles of the upper lip is considered as the most common cause of excessive gingival display (EGD). The aim of this study was to demonstrate the effectiveness of botulinum toxin (BT) injection as a conservative treatment for EGD due to muscular hyperfunction and to compare the outcome of 2 injection methods.

Material and Methods:

This study included 40 participants who were randomly assigned into 2 groups of 20 each, The first group received 2.5IU BT injection at 1 point per side (2-points group), while the second group received a total of 5 IU of BT at 2 points per side (4-points group). The outcome variables were the reduction in the central and lateral gingival display expressed as the difference between the pre- and post-injection measurements and the degree of satisfaction of the participants. The follow up visits were at 2- and 12-weeks postinjection. The study variables were statistically analyzed and probability values of <0.05 were considered significant.

Results:

There was a significant improvement (P < 0.0001) in both groups throughout the follow up period, but the improvement achieved by 4-points group was significantly better than that of the 2-points group with respect to the gingival display and the degree of satisfaction (P < 0.0001).

Conclusions:

Botulinum toxin injection represents a safe and less invasive modality for treatment of EGD, the 4-points method results in better outcome in terms of clinical measurements and degree of satisfaction over the 2-points method.
Retromandibular Transparotid Approach for the Treatment of Benign Nontraumatic Conditions of the Mandible. A Retrospective Consecutive Case-Series Study
Authors: Hauer Lukas , Gencur Jiri , Posta Petr , Micopulos Christos , Lišková Veronika , Chalupová Miroslava , Moztarzadeh Omid
Published: July 2021

The retromandibular transparotid approach enables the most direct access to the central and posterior part of the mandibular ramus including the condylar region. So far it has not been widely used for the management of benign pathology of the mandible. The purpose of this study was to evaluate the utilization rate of this approach in the nontrauma setting including the determination of suitable indications for this access. In total, 105 patients with 107 retromandibular transparotid approaches performed in the 6.5 years (from May 2014 to November 2020) were evaluated. Patients suffering from nontrauma pathology accounted for 4.7% of all cases. The recurrences of different types of odontogenic cysts and secondary chronic osteomyelitis were surgically managed via this approach with aesthetically acceptable resultant scar achievement and no identified postoperative complications. All lesions resolved and no recurrences occurred during the follow-up 32.0 ± 20.7 months (range 6 to 59 months, median = 26 months). The retromandibular transparotid approach may be considered for the enucleation of benign bone lesions in selected patients. Another type of surgery for the management of benign nontraumatic conditions in an accessible area without requirements for continuity resection and jaw reconstruction may be also suitable for using this approach.
Enhanced Recovery and Same-Day Discharge After Minimally Invasive Sacrocolpopexy
Authors: Evans Sarah , McCarter Maggie , Abimbola Obafunbi , Myers Erinn M.
Published: July 2021

Objective

The objective of this study was to evaluate whether an enhanced recovery after surgery (ERAS) protocol was associated with a higher rate of same-day discharge after robot-assisted or laparoscopic sacrocolpopexy and to describe the safety and feasibility of same-day discharge after these procedures.

Methods

A historical control, retrospective cohort study of women undergoing minimally invasive sacrocolpopexy comparing rates of same-day discharge before and after implementation of an ERAS protocol was conducted. Secondary outcomes were obtained by comparing women discharged the same day with those discharged postoperative day ≥1, including postoperative complications and unplanned postoperative patient encounters within 30 days of surgery. Logistic regression was performed to control for potential confounders.

Results

Of the 166 women identified (83 before ERAS implementation; 83 after ERAS implementation), 43 underwent same-day discharge versus 123 admitted overnight. The rate of same-day discharge increased 28 percentage points after ERAS implementation (12% vs 40%, P < 0.01). Compared with women admitted overnight, same-day discharge women had shorter procedures (154 vs 173 minutes, P = 0.01), spent longer time in the postanesthesia care unit (130 vs 106 minutes, P = 0.01), and were more likely to be discharged with a Foley catheter (58% vs 28%, P < 0.01). After multivariable logistic regression analysis, ERAS was associated with increased odds of same-day discharge (odds ratio, 4.91; 95% confidence interval, 2.17–11.09). There were no differences in unplanned postoperative patient contacts or postoperative complications within 30 days between same-day discharge and overnight admission groups.

Conclusions

Implementation of an ERAS protocol for minimally invasive sacrocolpopexy was associated with a 3-fold increase in same-day discharge.
Characterization of Urethral Diverticula in Women
Authors: Vaidya Rohan V. , Olson Kathleen , Wolter Christopher , Khan Aqsa
Published: July 2021

Objective

Urethral diverticulum is a rare, yet important condition for the female pelvic surgeon. We aimed to characterize the women who have been seen for this condition across the three Mayo Clinic locations.

Methods

Medical record review was performed for patients across all three Mayo Clinic sites (Rochester, Arizona, Florida) that had International Classification of Diseases, Ninth Revision, (ICD-9) and International Classification of Diseases, Tenth Revision, (ICD-10) codes corresponding to urethral diverticulum (ICD-9, 599.2; ICD-10, N36.1). We also performed a review of patients who underwent urethral diverticulectomy via Current Procedural Terminology (CPT) code 53235. Data were available for patients from June 1, 2003, to October 5, 2018. Patients were classified by age, etiology, presenting symptomatology, location, treatment, pathology, and postoperative outcomes.

Results

Four hundred forty-seven women met initial coding criteria for urethral diverticula, with 228 women having documented urethral diverticula. The most common presentations were irritative voiding symptoms (93) and infections (92). The most common diagnostic modality was radiographic imaging (198/228) with magnetic resonance imaging accounting for 157 cases. Etiology was unknown in the majority of cases (181/228). Of women who were diagnosed, 172 underwent diverticulectomy with 51 concurrent urethral sling placements. Final pathology demonstrated 2 cases of malignancy. Postoperative follow-up ranged from 0 months to 15 years (mean, 1.4 years; median, 4 months). Forty-three patients had persistent urinary symptoms after diverticulectomy with stress incontinence being the most common. Eight patients underwent subsequent sling placement. Fourteen patients had recurrence.

Conclusions

This appears to be the largest reported series on female urethral diverticula, a rare yet important entity that requires special consideration. Most surgical cases found resolution of symptoms after diverticulectomy. Importantly, less than 2% of urethral diverticula were associated with malignancy.