bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Comparative Study of Endoscopic Ultrasonography and Histopathology Images for the Diagnosis of Early Chronic Pancreatitis
Authors: Sekine Masanari , Tanaka Akira , Akimoto Maho , Miura Takaya , Fujiwara Junichi , Noda Hiroshi , Rikiyama Toshiki , Ohnishi Hirohide , Mashima Hirosato 
Published: October 2021

Objective
The concept of early chronic pancreatitis (ECP) and its diagnostic criteria were first proposed by Japan, using endoscopic ultrasonography (EUS) findings for diagnosis. However, these findings have not been supported by pathological findings. We aimed to examine the association between the EUS and pathological findings of the same area of the pancreas.

Methods
In 12 patients who underwent pancreaticoduodenectomy for distal bile duct cancer without accompanying pancreatitis, a comparative analysis between preoperative EUS and pathological findings was performed. The part of the pancreas adjoining the portal vein was evaluated.

Results
In 7 cases, abnormal EUS findings included in the diagnostic criteria for ECP were seen; the correlation of the accuracy of lobularity seen on EUS compared with the pathological findings of the pancreatic parenchyma (inflammatory cell infiltration, atrophy of acinar cells, and fibrosis) was high (83.3%–91.7%). Pancreatic duct findings revealed that the accuracy of the hyperechoic margin of the pancreatic duct on EUS compared with pathological findings (wall thickness of pancreatic duct) was high (83.3%).

Conclusions
Endoscopic ultrasonography findings for ECP, according to Japan's 2019 revised criteria, lobularity, and the hyperechoic margin of the pancreatic duct may highly correspond to the pathological findings of chronic inflammation.
Quantifying the Risk of Drug-Induced Pancreatitis With Angiotensin-Converting Enzyme Inhibitors and Statins Using a Large Electronic Medical Record Database
Authors: Twohig Patrick A. , de-Madaria Enrique , Thakkar Shyam , Dulai Parambir , Gardner Timothy B. , Kochhar Gursimran , Sandhu Dalbir S. 
Published: October 2021

Objectives
Quantify the risk of drug-induced pancreatitis (DIP) from angiotensin-converting enzyme inhibitors (ACEis) and 3-hydroxy-3-methyl-glutaryl-CoA reductase inhibitors (statins).

Methods
Retrospective cohort analysis using IBM Explorys (1999–2019), a pooled, deidentified clinical database of more than 63 million patients across the United States. Odds ratios were calculated to determine the risk of DIP from ACEi, statins, and both medications together. χ2 testing assessed the relationship between age, sex, ethnicity, insurance status, and mortality among patients with DIP from ACEi, statins, or both combined.

Results
Acute pancreatitis (AP) was found in 280,740 patients. Odds ratios for ACEi, statins, and both combined were 6.12, 4.97, and 5.72, respectively. Thirty-eight percent of all-cause AP occurs in adults older than 65 years. Acute pancreatitis from ACEi and statins occurs in 49% and 56% of patients older than 65 years, respectively. Men and patients older than 65 years are at higher risk of DIP from ACEi and statins. Patients on Medicaid are at higher risk of DIP from statins, and Asian patients are at highest risk of DIP from ACEi.

Conclusions
We found that ACEi and statins increase the odds of DIP. Although ACEis and statins are critical medications for many patients, clinicians should consider using alternatives in patients with AP of unclear etiology.
Phase I Study of Preoperative Chemoradiotherapy Using Gemcitabine Plus Nab-Paclitaxel for Patients Who Have Localized Pancreatic Ductal Adenocarcinoma With Contact or Invasion to Major Arteries
Authors: Hayasaki Aoi , Kishiwada Masashi , Murata Yasuhiro , Komatsubara Haruna , Nakagawa Yuki , Maeda Koki , Shinkai Toru , Noguchi Daisuke , Gyoten Kazuyuki , Fujii Takehiro , Iizawa Yusuke , Tanemura Akihiro , Kuriyama Naohisa , Sakurai Hiroyuki , Isaji Shuji , Mizuno Shugo 
Published: October 2021

Objectives
This study aimed to assess the feasibility of preoperative chemoradiotherapy using gemcitabine plus nab-paclitaxel (GnP) and to determine the recommended dose (RD) of nab-paclitaxel for patients with localized pancreatic ductal adenocarcinoma (PDAC).

Methods
The participants had localized PDAC with contact or invasion to major arteries. They received GnP on days 1, 15, 29, and 43. The dose of gemcitabine was fixed at 600 mg/m2, whereas that of nab-paclitaxel was at 3 dose levels in accordance with a standard 3 + 3 dose escalation scheme. Three-dimensional radiotherapy was administered concurrently to a total dose of 50.4 Gy per 28 fractions.

Results
The study cohort comprised 15 patients. Grade 3 or 4 neutropenia was observed in 4 (26.7%), leukopenia in 1 (6.7%), biliary infection in 2 (13.3%), appetite loss and nausea in 1 (6.7%), and anaphylaxis in 1 (6.7%). The RD was determined as level 2 (gemcitabine, 600 mg/m2; nab-paclitaxel, 100 mg/m2). Three patients underwent pancreatectomy after additional chemotherapy and achieved R0 resection.

Conclusions
The RD of nab-paclitaxel in our chemoradiotherapy protocol using GnP was 100 mg/m2 with gemcitabine 600 mg/m2 and 3-dimensional conformal radiotherapy to a total dose of 50.4 Gy per 28 fractions for patients with localized PDAC.
Is the Combination of Rectal Diclofenac and Intravenous Ringer Lactate Superior to Individual Therapy for Prophylaxis of Post–Endoscopic Retrograde Cholangiopancreatography Pancreatitis
Authors: Thanage Ravi , Jain Shubham , Chandnani Sanjay , Udgirkar Suhas , Nair Sujit , Debnath Prasanta , Jain Samit , Rathi Pravin 
Published: October 2021

Objectives
Rectal diclofenac and hydration with Ringer lactate (RL) are proven therapies for prophylaxis of post–endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP). This study was to analyze the effect of a combination of them for the prevention of PEP.

Methods
This was single-center, open-label, randomized trial. Patients who were undergoing ERCP and who were at high risk for the development of PEP were selected for the study. Patients were randomized into 3 treatment groups: diclofenac suppository group, RL group, and a combination group.

Results
Eight of 57 patients (14.03%) in the diclofenac group, 9 of 57 patients (15.78%) in the RL group, and 6 of 57 patients (10.52%) in the combination group developed PEP. The incidence of PEP between the three groups was not statistically significant (P = 0.70). Serum amylase level of >252 U/L had 91.3% sensitivity and 92.6% specificity for the diagnosis of PEP.

Conclusions
Post-ERCP pancreatitis is usually mild to moderate 95% times. Female sex, age younger than 50 years, a benign indication of ERCP, and low bilirubin levels have higher chances of PEP. A combination of rectal diclofenac and hydration with RL does not offer better protection for PEP, as compared with individual prophylaxis.
Normative Values of Pediatric Thoracic Aortic Diameters Indexed to Body Surface Area Using Computed Tomography
Authors: Kocher Madison R. , Waltz Jeffrey , Collins Heather , Schoepf U. Joseph , Tran Tri , Guruvadoo Kharina , Lehew Haley , Kabakus Ismail M. , Akkaya Selcuk , McBee Morgan P. , Gregg David , Zahergivar Aryan , Burt Jeremy R. 
Published: October 2021

Purpose:
The purpose of this study was to establish normative values for the thoracic aorta diameter in pediatric patients from birth to 18 years of age using computed tomography (CT) measurements and to create nomograms related to body surface area (BSA).

Methods:
A total of 623 pediatric patients without cardiovascular disease (42.1% females; from 3 d to 18 y old) with high-quality, non–electrocardiogram-gated, contrast-enhanced CT imaging of the chest were retrospectively evaluated. Systematic measurements of the aortic diameter at predetermined levels were recorded, and demographic data including age, sex, ethnicity, and BSA were collected. Reference graphs plotting BSA over aortic diameter included the mean and Z−3 to Z+3, where Z represents SDs from the mean.

Results:
The study population was divided into 2 groups (below 2 and greater than or equal to 2 y old). There were no significant differences in average aortic measurements between males and females. Both age groups exhibited significant positive correlations among all size-related metrics (all P<0.001) with BSA having the highest correlation. For both groups, the average orthogonal thoracic aortic diameters at each level of the thoracic aorta were used to create nomograms.

Conclusion:
This study establishes clinically applicable, BSA-specific reference values of the normal thoracic aorta for the pediatric population from CT imaging.
Comparison of the Effects of Intratubal Injection of Adipose-Derived Mesenchymal Stem Cells in a Rat Sciatic Nerve Transection
Authors: Karakol Perçin , Kapi Emin , Karaöz Erdal , Tunik Selçuk , Bozkurt Mehmet 
Published: October 2021

Abstract
This study was designed to evaluate the efficacy of epineural tubulization (ENT) with or without intratubal application of adipose-derived mesenchymal stem cells (ASCs) in the rat model of sciatic nerve transection. After formation of 1-cm defect in the left sciatic nerve and ENT, 32 adults female Wistar albino rats were separated into 4 groups (n = 8 for each) including ENT per se (group 1; ENT group) and ENT plus intratubal ASC injection groups killed on day 21 (group 2; ENT-ASC-21-day group), 60 days (group 3; ENT-ASC-60-day group), and 120 days (group 4; ENT-ASC-120-day group). Functional (sciatic function index, hip circumference, withdrawal reflex latency, muscle weight ratio), electrophysiological, histomorphometric, and immunohistochemical analyses were performed in each group. Sciatic function index was significantly higher (−51.98 ± 5.94, P < 0.01) and withdrawal reflex latency was shorter (−6.21 ± 2.14, P < 0.01), in the group 4 as compared with all other groups on day 21. Amplitude of contraction was significantly lower in the group 4 as compared with all other groups (0.22 ± 0.05 vs 0.34 ± 0.07, 0.50 ± 0.11, and 0.61 ± 0.16, P < 0.01 for each). Immunohistochemical analysis revealed presence of green fluorescent protein, vimentin-stained cells, and single neural progenitor cells indicating that induction of neuronal differentiation by ASCs and direct involvement of ASCs within the axonal structure alongside extension of ASCs to the muscular layer of the group 4. In conclusion, our findings revealed that use of ENT plus intratubal ASC injection in a rat sciatic nerve transection model was associated with satisfactory functional outcome and improved peripheral axonal regeneration along with stem cell neural differentiation.
A Comparison of Applicant and Resident Physician Demographics Among Surgical Subspecialties From 2009 to 2019
Authors: Jain Abhishek , Nichols Georgina , Tarabishy Sami , Scomacao Isis , Herrera Fernando A. 
Published: October 2021

Background
The purposes of this study were to compare applicant statistics to resident physician demographics among several surgical subspecialties (SSSs), to identify trends of gender and underrepresented minorities in medicine (UIM), and to evaluate current diversity among these specialties.

Methods
Graduate medical education reports from 2009 to 2019 were queried to determine trends among programs. Further identification of gender and UIM statistics was obtained in 4 several SSSs: integrated plastic surgery, orthopedic surgery (OS), otolaryngology surgery (ENT), and neurosurgery (NS). These were compared with Association of American Medical Colleges data of residency applicants for the respective years.

Results
Significant differences were seen among gender and UIM(s) of the applicant pool when compared with resident data. All specialties had significantly fewer American Indian and African American residents compared with applicants. Significant differences between applicants and residents were also found among Hispanic, Native Hawaiian, and female demographics. All SSSs had a significant positive trend for the percentage of female residents. Significant differences between specialties were identified among African American, Hispanic, and female residents. Orthopedic surgery and NS had significantly higher percentage of African American residents compared with ENT and integrated plastic surgery. Neurosurgery had significantly higher percentage of Hispanic residents compared with OS and ENT. Integrated plastic surgery and ENT had significantly higher percentage of female residents compared with OS and NS.

Conclusions
There has been significant increase in number of residency programs and resident positions since 2009. However, increase in female residents and UIM(s) among SSSs has not matched the pace of growth.
Mandibular Distraction Osteogenesis First for Children With Severe Unilateral Hemifacial Microsomia: Treatment Strategy and Outcomes
Authors: Liu Wei , Xu Xi , Zhao Shanbaga , Peng Qi-Li , Shu Kai-Yi , Liu Bing-Yang , Tang Xiao-Jun , Yin Lin , Feng Shi , Zhang Zhi-Yong 
Published: October 2021

AbstractThe treatment for severe hemifacial microsomia (HFM), especially type III case, is extremely difficult. Mandibular distraction osteogenesis (MDO) was rarely used as the primary choice in the treatment of severe type cases. The authors sought to observe the short-term therapeutic outcomes of patients with severe unilateral HFM who underwent MDO first.A retrospective study of children underwent MDO or later received costochondral graft (CCG) for severe unilateral HFM from 2009 to 2019 was conducted. Cephalometric measurements and clinical variables were analyzed to evaluate the effectiveness of MDO first strategy for severe cases and compare disparity between Pruzansky–Kaban classification type IIb and type III groups.Thirty-six patients (23 males and 13 females) underwent MDO first for severe HFM were included for analysis in the present study. The average age at MDO was 8.33 ± 2.03 years. At the last follow-up, MDO acquired significant improvement in mandibular height, maxillary cant, chin deviation, lip commissural line tilt, and clinical chin deviation (P < 0.05). Distraction results were stable during the short-term follow-up in terms of the mandibular height ratio and maxillary cant (P > 0.05).MDO is a proper primary method for suitable type IIb and type III HFM cases. MDO can immediately and significantly improve the facial skeleton deficiency, extend the associated soft tissue at the same time, and lay foundation for secondary surgery. MDO can achieve the downgrade of HFM deficiency severity. MDO followed by costochondral graft can get satisfactory esthetic and structural consequence for type III patients.
A Novel Technique for Autologous Supratip Augmentation: Septal Gap Graft
Authors: Lee Wooyeon , Park Bumjin 
Published: October 2021

Background:
Although it has been common to use artificial implant to augment nasal dorsum in Asian rhinoplasty, the demand for not using it is increasing due to the long-term complications of implants. However, if only the tip is raised without raising the dorsum with implant, it is difficult to avoid supratip depression, so it is difficult to obtain good cosmetic results. The authors would like to report good results, performing an augmentation rhinoplasty that raises the supratip area using the nasal septal cartilage without using an implant.

Methods:
Septal gap graft was used in 22 patients undergoing nasal tip surgery from January 2019 to April 2021. Septal gap graft refers to a graft that increases the height of the supratip area by using septal cartilage. Firstly, the authors perform a septal extension graft using the septal cartilage, then the authors fix the lower lateral cartilage in an ideal position, and lastly the authors heighten the nasal tip with onlay graft. The height difference between the nasal bone and the nasal tip, is solved by placing the septal cartilage. Before, during and after surgery, photometric analysis was done by taking clinical pictures.

Results:
Through the septal gap graft, the supratip depression index was decreased and the nasal tip projection was increased. It was confirmed that the septal gap graft was well maintained at long-term follow-up, and the patients’ postoperative satisfaction was also high.

Conclusions:
The authors presented a new technique for augmentation rhinoplasty in Asians. Septal gap graft can be used safely and effectively to raise supratip area without using implant.
Histomorphometric Comparison of New Bone Formed After Maxillary Sinus Lift With Lateral and Crestal Approaches Using Periostal Mesenchymal Stem Cells and Beta-Tricalcium Phosphate: A Controlled Clinical Trial
Authors: Fatale Valentina , Pagnoni Stefano , Pagnoni Albino Emidio , Passarelli Pier Carmine , Netti Andrea , Lajolo Carlo , Santacroce Luigi , D’Addona Antonio 
Published: October 2021

Abstract:
The present study investigated clinical and histomorphometric data after sinus lift procedures performed with and without mesenchymal stem cells (MSCs) added to a graft. Twenty-four patients underwent maxillary sinus lift for implant placement. Twelve patients each were assigned to control (Group 1) and test (Group 2) groups. An MSC suspension was added to the graft used in patients of Group 2. Five of 12 patients in both groups underwent crestal-approach sinus lift with immediate implant placement, while seven patients received a lateral-approach sinus lift. The MSC suspension was obtained using the Rigenera protocol. Samples from the grafted site were evaluated, processed, and stained using three staining techniques 90 days after surgery. Histomorphometric analysis was performed using an imaging software (ImageJ). Two types of tissues were defined: Type 1 ‘mature bone’ and Type 2 ‘osteoid tissue’. The mean Type 1 tissue percentage was 27.24% in Group 1 and 44.45% in Group 2 (P < 0.05). The mean Type 2 tissue percentage was 10.86% and 7.04% in Groups 1 and 2, respectively. The mean Type 1 tissue percentages for the crestal approach were 24.52% for Group 1 and 50.78% for Group 2, while the mean Type 1 tissue percentages for the lateral approach were 29.18% for Group 1 and 39.92% for Group 2. Patients treated with grafts containing MSCs showed 63.18% increased bone formation compared to those treated with grafts not containing MSCs (P < 0.05). Although our data showed a positive trend in patients treated with MSCs, differences between subgroups were not significant (P > 0.05).
Pleomorphic Adenoma of the Eyebrow: An Unexpected Finding and Review of Unusual Periorbital Soft Tissue Lesions
Authors: Fajardo Manuel Alejandro , Glomski Krzystof , Castiglione Charles L. , Babigian Alan , Hughes Christopher D. 
Published: October 2021

Abstract
Soft tissue lesions of the eyebrow are common and are usually diagnosed as dermoid cysts, pilomatrixomas, inclusion cysts, or basal cell carcinomas. Pleomorphic adenomas are benign glandular lesions most commonly found in the parotid gland or salivary glands, and less commonly found in the lacrimal gland. Here the authors report the case of a 35-year-old male who presented with a prominent soft tissue lesion of his right upper brow. This had been present for several months and had not substantially changed in size. Operative excision was performed via a supratarsal crease incision. The mass was located in a deep, periosteal plane, similar to a dermoid cyst. Final pathology demonstrated a 1.1 × 1.0 × 0.9 cm pleomorphic adenoma without defining characteristics of either the lacrimal gland or the minor adnexal glands of the skin or subcutaneous tissue. The authors reviewed the current literature on unusual lesions of the periorbital and brow regions, and the authors present aggregate data regarding epidemiology, diagnosis, and management.
IMPACT OF DIFFERENT VENTILATION STRATEGIES ON GAS EXCHANGES AND CIRCULATION DURING PROLONGED MECHANICAL CARDIO-PULMONARY RESUSCITATION IN A PORCINE MODEL
Authors: Fritz Caroline , Jaeger Deborah , Luo Yun , Lardenois Emilie , Badat Bilal , Roquet Florian Eric , Rigollot Marceau , Kimmoun Antoine , Tran N.’Guyen , Richard Jean-Christophe M. , Chouihed Tahar , Levy Bruno 
Published: October 2021

ABSTRACT

Background: Optimal ventilation during cardio-pulmonary resuscitation (CPR) is still controversial. Ventilation is expected to provide sufficient arterial oxygen content and adequate carbon dioxide removal, while minimizing the risk of circulatory impairment. The objective of the present study was to compare three ventilation strategies in a porcine model during mechanical continuous chest compressions (CCC) according to arterial oxygenation and hemodynamic impact. Method: Ventricular fibrillation was induced and followed by five no-flow minutes and thirty low-flow minutes resuscitation with mechanical-CCC without vasopressive drugs administration. Three groups of eight Landras pig were randomized according to the ventilation strategy: 1. Standard nonsynchronized volume-control mode (SD-group); 2. synchronized bilevel pressure-controlled ventilation (CPV-group); 3. continuous insufflation with Boussignac Cardiac-Arrest Device (BC-group). We assessed 1. arterial blood gases, 2. macro hemodynamics, 3. tissular cerebral macro and micro-circulation and 4. airway pressure, minute ventilation at baseline and every 5 minutes during the protocol. Results: Arterial PaO2 level was higher at each measurement time in SD-group (>200 mm Hg) compare to CPV-group and BC-group (P< 0.01). In BC-group, arterial PaCO2 level was significantly higher (>90mm Hg) than in SD and CPV groups (P< 0.01). There was no difference between groups concerning hemodynamic parameters, cerebral perfusion and microcirculation. Conclusion: Ventilation modalities in this porcine model of prolonged CPR influence oxygenation and decarboxylation without impairing circulation and cerebral perfusion. Synchronized bi-level pressure-controlled ventilation' use avoid hyperoxia and was as efficient as asynchronized volume ventilation to maintain alveolar ventilation and systemic perfusion during prolonged CPR.
KLF6 Promotes Pyroptosis of Renal Tubular Epithelial Cells in Septic Acute Kidney Injury
Authors: Gao Min , Li Hongbin , Liu Qilong , Ma Ning , Zi Panpan , Shi Huijuan , Du Yuming 
Published: October 2021

ABSTRACT
Septic acute kidney injury (SAKI) represents a clinical challenge with high morbidity and mortality. The current study aimed to analyze the effects and molecular mechanism of Krüppel-like factor 6 (KLF6) on SAKI. First, SAKI mouse models were established by cecum ligation and puncture, while in vivo cell models were established using lipopolysaccharide (LPS). RT-qPCR assay was subsequently performed to detect the levels of KLF6 mRNA. SAKI mice and LPS-treated TCMK-1 cells were further treated with KLF6 siRNA. Afterward, HE staining, PAS staining, Western blot assay, and ELISA were adopted to ascertain the effects of KLF6 in pyroptosis. The binding relationships between KLF6 and miR-223-3p promoter /miR-223-3p and NLRP3 were analyzed with the help of CHIP and dual-luciferase reporter assays. RT-qPCR was adopted to determine the expression patterns of miR-223-3p and NLRP3. Lastly, a rescue experiment was designed to confirm the role of miR-223-3p. It was found that KLF6 was highly expressed in SAKI, whereas knockdown of KLF6 alleviated oxidative stress (OS) and pyroptosis in SAKI mice and LPS-treated TCMK-1 cells. Mechanistic results confirmed that KLF6 inhibited miR-223-3p via binding to the miR-223-3p promoter and promoted NLRP3. On the other hand, downregulation of miR-223-3p activated the NLRP3/Caspase-1/IL-1β pathway and aggravated OS and pyroptosis. Overall, our findings indicated that KLF6 inhibited miR-223-3p via binding to the miR-223-3p promoter and promoted NLRP3, and activated the NLRP3/Caspase-1/IL-1β pathway, thereby aggravating pyroptosis and SAKI.