bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cirrhosis in intrahepatic cholangiocarcinoma: prognostic importance and impact on survival
Authors: Thakral Nimish , Gonzalez Teresita , Nano Olger , Shin Sang-Ha , Samuels Shenae , Hussein Atif 
Published: May 2023

Abstract
Context
Cholangiocarcinoma (CCA), a malignancy of the biliary tract epithelium is of increasing importance due to its rising incidence worldwide. There is a lack of data on cirrhosis in intrahepatic CCA (iCCA) and how it affects overall survival and prognosis.

Objectives
The primary objective of this study was to examine if there were differences in survival outcomes between iCCA patients with concomitant cirrhosis and those without cirrhosis.

Methods
The National Cancer Database (NCDB) was used to identify and study patients with iCCA from 2004 to 2017. The presence of cirrhosis was defined using CS Site-Specific Factor 2 where 000 indicated no cirrhosis and 001 indicated the presence of cirrhosis. Descriptive statistics were utilized for patient demographics, disease staging, tumor, and treatment characteristics. Kaplan-Meier (KM) method with log-rank test and a multivariate logistic regression model was used to assess if the presence of cirrhosis in iCCA was associated with survival status and long-term survival (60 or more months after diagnosis).

Results
There were 33,160 patients with CCA in NCDB (2004–2017), of which 3644 patients were diagnosed with iCCA. One thousand fifty-two patients (28.9%) had cirrhosis as defined by Ishak Fibrosis score 5–6 on biopsy and 2592 patients (71.1%) did not meet the definition for cirrhosis. Although in univariate analyses using KM/log-rank tests showed a survival advantage for non-cirrhotic patients, there was no statistically significant association found between cirrhosis and survival status (OR = 0.82, p = 0.405) or long-term survival (OR = 0.98, p = 0.933) when multivariate analysis was used. iCCA patients with cirrhosis and Stage 1 tumor had the highest median OS (132 months) vs 73.7 months in the non-cirrhotic arm, while patients with stage IV disease who had cirrhosis had half the survival time of those without. Our data thus indicates that the presence of cirrhosis is not an independent prognostic factor for survival.
Experiences of caregiving with Alzheimer’s disease in the LGBT community
Authors: Candrian Carey , Burke Emily S. , Kline Danielle , Torke Alexia M. 
Published: May 2023

Abstract
Background
The goal of this paper is to develop a more thorough understanding of the experiences of LGBT older adults living with dementia and their caregivers.

Methods
A phenomenological approach using in-depth interviews with current or former caregivers of LGBT persons living with Alzheimer’s disease (AD) was conducted.

Results
Participants ranged in age from 44–77 years old; 74% were lesbian, 16% gay, 5% straight, and 5% unknown. Five themes were identified from the analysis: Caregiver tension and isolation; financial stress & security; lack of social support & connection; engineering grief support, and entrapment of past and present stigma and discrimination.

Conclusions
Discrimination related to LGBT status was an important theme over the participants’ lives and occurred for several during dementia care. While other themes were similar to prior AD studies, LGBT status affected these other aspects of the caregiving experience. Findings can inform future programs that better meet needs of LGBT people and those who care for them.
Comparison of two frailty screening tools in older patients with colorectal cancer
Authors: Zhao Han , Lu Xinlin , Zheng Senshuang , Wei Danmei , Zhao Lizhong , Wang Yuan , de Bock Geertruida H. , Lu Wenli 
Published: May 2023

Abstract
Introduction
Geriatric assessment (GA) is widely used to detect vulnerability in older patients. As this process is time-consuming, prescreening tools have been developed to identify patients at risk for frailty. We aimed to assess whether the Geriatric 8 (G8) or the Korean Cancer Study Group Geriatric Score (KG-7) shows better performance in identifying patients who are in need of full GA.

Materials and methods
A consecutive series of patients aged ≥ 60 years with colorectal cancer were included. The sensitivity, specificity, predictive value, and 95% confidence intervals (95% CI) were calculated for the G8 and the KG-7 using the results of GA as the reference standard. ROC(Receiver Operating Characteristic) was used to evaluate the accuracy of the G8 and the KG-7.

Results
One hundred four patients were enrolled. A total of 40.4% of patients were frail according to GA, and 42.3% and 50.0% of patients were frail based on the G8 and the KG-7, respectively. The sensitivity and specificity of the G8 were 90.5% (95% CI: 77.4–97.3%) and 90.3% (95% CI: 80.1–96.4%), respectively. For the KG-7, the sensitivity and specificity were 83.3% (95% CI: 68.6–93.0%) and 72.6% (95% CI: 59.8–83.1%), respectively. Compared to the KG-7, the G8 had a higher predictive accuracy (AUC: (95% CI): 0.90 (0.83–0.95) vs. 0.78 (0.69–0.85); p < 0.01). By applying the G8 and the KG-7, 60 and 52 patients would not need a GA assessment, respectively.

Conclusion
Both the G8 and the KG-7 showed a great ability to detect frailty in older patients with colorectal cancer. In this population, compared to the KG-7, the G8 had a better performance in identifying those in need of a full Geriatric Assessment.
Complicated pyelonephritis caused by Proteus alimentorum in a woman with peritoneal cancer: a case report
Authors: Mori Nobuaki , Hirai Jun , Sakanashi Daisuke , Takayama Mina , Nakamura Akiko , Ohta Hirotoshi , Asai Nobuhiro , Mikamo Hiroshige 
Published: May 2023

Abstract
Background
Proteus spp. are widespread in the environment and comprise a part of the normal flora of the human gastrointestinal tract. Only six species in this genus, including Proteus mirabilis, Proteus vulgaris, Proteus terrae, Proteus penneri, Proteus hauseri, and Proteus faecis, have been isolated from human clinical specimens. However, there are no reports of Proteus alimentorum isolated from humans, and the clinical characteristics of P. alimentorum infection are unknown.

Case presentation
An 85-year-old female patient with peritoneal cancer was hospitalized for complicated pyelonephritis and bacteremia caused by P. alimentorum. The patient received antimicrobial therapy and was discharged on day 7 of hospitalization. No recurrence was observed 14 days after the treatment. Various methods were used to identify the Proteus sp. Furthermore, the VITEK-2 GN ID card resulted in low discrimination between P. hauseri and P. penneri. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry showed P. hauseri with a spectral score of 2.22 as the best match. Nevertheless, the pathogen was identified as P. alimentorum based on genetic investigation using 16 S rRNA gene sequencing and biochemical tests.

Conclusion
Proteus alimentorum is a human pathogen, and its infection has an excellent therapeutic response to antimicrobials based on antimicrobial susceptibility. Genomic methods may be helpful for the precise identification of P. alimentorum.
Diagnostic accuracy of ultrasound in the diagnosis of Placenta accreta spectrum: systematic review and meta-analysis
Authors: Maged Ahmed M. , El-Mazny Akmal , Kamal Nada , Mahmoud Safaa I. , Fouad Mona , El-Nassery Noura , Kotb Amal , Ragab Wael S. , Ogila Asmaa I. , Metwally Ahmed A. , Lasheen Yossra , Fahmy Radwa M. , Katta Maha , Shaeer Eman K. , Salah Noha 
Published: May 2023

AbstractObjectiveTo evaluate the diagnostic accuracy of ultrasound and in the diagnosis of Placenta accreta spectrum (PAS).Data sourcesScreening of MEDLINE, CENTRAL, other bases from inception to February 2022 using the keywords related to placenta accreta, increta, percreta, morbidly adherent placenta, and preoperative ultrasound diagnosis.Study eligibility criteriaAll available studies- whether were prospective or retrospective- including cohort, case control and cross sectional that involved prenatal diagnosis of PAS using 2D or 3D ultrasound with subsequent pathological confirmation postnatal were included. Fifty-four studies included 5307 women fulfilled the inclusion criteria, PAS was confirmed in 2025 of them.Study appraisal and synthesis methodsExtracted data included settings of the study, study type, sample size, participants characteristics and their inclusion and exclusion criteria, Type and site of placenta previa, Type and timing of imaging technique (2D, and 3D), severity of PAS, sensitivity and specificity of individual ultrasound criteria and overall sensitivity and specificity.ResultsThe overall sensitivity was 0.8703, specificity was 0.8634 with -0.2348 negative correlation between them. The estimate of Odd ratio, negative likelihood ratio and positive likelihood ratio were 34.225, 0.155 and 4.990 respectively.The overall estimates of loss of retroplacental clear zone sensitivity and specificity were 0.820 and 0.898 respectively with 0.129 negative correlation. The overall estimates of myometrial thinning, loss of retroplacental clear zone, the presence of bridging vessels, placental lacunae, bladder wall interruption, exophytic mass, and uterovesical hypervascularity sensitivities were 0.763, 0.780, 0.659, 0.785, 0.455, 0.218 and 0.513 while specificities were 0.890, 0.884, 0.928, 0.809, 0.975, 0.865 and 0.994 respectively.ConclusionsThe accuracy of ultrasound in diagnosis of PAS among women with low lying or placenta previa with previous cesarean section scars is high and recommended in all suspected cases.Trial registrationNumber CRD42021267501.
A continent-wide effort and solidarity at curbing COVID-19 pandemic: the Africa task force for novel coronavirus (AFTCOR) infection prevention and control technical working group’s experience
Authors: Paintsil Elijah , Alimi Yewande , Abdulaziz Mohammed , Ogbuagu Onyema , Ogunsola Folasade , Kessy Suzan Joseph , Horsney Emilio , Lee Christopher , Brundney Karen , Okwor Tochi , Kabwe Patrick , Waheed Ariyo , Vondran Anna , Bigirimana Radjabu , Ilesanmi Olayinka , Nsubuga Diana Nambatya , Raji Tajudeen , Mankoula Wessam , Ihekweazu Chikwe , Nkengasong John 
Published: May 2023

AbstractA continent-wide Africa Task Force for Coronavirus with its six technical working groups was formed to prepare adequately and respond to the novel Coronavirus disease (COVID-19) outbreak in Africa. This research in practice article aimed to describe how the infection prevention and control (IPC) technical working group (TWG) supported Africa Centre for Disease Control and Prevention (Africa CDC) in preparedness and response to COVID-19 on the continent. To effectively address the multifaceted IPC TWG mandate of organizing training and implementing rigorous IPC measures at healthcare service delivery points, the working group was sub-divided into four sub-groups—Guidelines, Training, Research, and Logistics. The action framework was used to describe the experiences of each subgroup. The guidelines subgroup developed 14 guidance documents and two advisories; all of which were published in English. In addition, five of these documents were translated and published in Arabic, while three others were translated and published in French and Portuguese. Challenges faced in the guidelines subgroup included the primary development of the Africa CDC website in English, and the need to revise previously issued guidelines. The training subgroup engaged the Infection Control Africa Network as technical experts to carry out in-person training of IPC focal persons and port health personnel across the African continent. Challenges faced included the difficulty in conducting face-to-face IPC training and onsite technical support due to the lockdown. The research subgroup developed an interactive COVID-19 Research Tracker on the Africa CDC website and conducted a context-based operation and implementation research. The lack of understanding of Africa CDC’s capacity to lead her own research was the major challenge faced by the research subgroup. The logistics subgroup assisted African Union (AU) member states to identify their IPC supply needs through capacity building for IPC quantification. A notable challenge faced by the logistics subgroup was the initial lack of experts on IPC logistics and quantifications, which was later addressed by the recruitment of professionals. In conclusion, IPC cannot be built overnight nor can it be promoted abruptly during outbreaks of diseases. Thus, the Africa CDC should build strong national IPC programmes and support such programmes with trained and competent professionals.
Risk prediction model for long-term atelectasis in children with pneumonia
Authors: Luo Yonghan , Wang Yanchun , Gong Kenan 
Published: May 2023

Abstract
Background
This study aimed to develop a risk prediction model for long-term atelectasis in children with pneumonia.

Methods
A retrospective study of 532 children with atelectasis was performed at the Children’s Hospital of Chongqing Medical University from February 2017 to March 2020. The predictive variables were screened by LASSO regression analysis and the nomogram was drawn by R software. The area under the Receiver Operating Characteristic (ROC) curve, calibration chart and decision curve were used to evaluate the predictive accuracy and clinical utility. 1000 Bootstrap resampling was used for internal verification.

Results
Multivariate logistic regression analysis showed that clinical course before bronchoscopy, length of stay, bronchial mucus plug formation, age were independent risk factors for long-term atelectasis in children. The area under the ROC curve of nomogram was 0.857(95% CI = 0.8136 ~ 0.9006) in training set and 0.849(95% CI = 0.7848–0.9132) in the testing set. The calibration curve demonstrated that the nomogram was well-fitted, and decision curve analysis (DCA) showed that the nomogram had good clinical utility.

Conclusions
The model based on the risk factors of long-term atelectasis in children with pneumonia has good predictive accuracy and consistency, which can provide a certain reference value for clinical prevention and treatment of long-term atelectasis in children.
Anatomic consideration of the radial nerve in relation to humeral length for unilateral external fixation: a retrospective study using magnetic resonance imaging findings in korean
Authors: Min Jae Jung , Ryu Young Jin , Sung Ki Hyuk , Lee Jisoo , Kim Ji Young , Park Moon Seok 
Published: May 2023

Abstract
Background
This study aimed to present a safe zone for distal pin insertion for external fixation using magnetic resonance imaging (MRI) images.

Methods
All patients who took at least one upper arm MRI from June 2003 to July 2021 were searched via a clinical data warehouse. For measuring the humerus length, proximal and distal landmarks were set as the highest protruding point of the humeral head and lowermost margin of ossified bone of the lateral condyle, respectively. For children or adolescents with incomplete ossification, the uppermost and lowermost ossified margin of the ossification centers were set as proximal and distal landmarks respectively. The anterior exit point (AEP) was defined as the location of the radial nerve exiting the lateral intermuscular septum to the anterior humerus and distance between the distal margin of the humerus and AEP was measured. The proportions between the AEP and full humeral length were calculated.

Results
A total of 132 patients were enrolled for final analysis. The mean humerus length was 29.4 cm (range 12.9–34.6 cm). The mean distance between the ossified lateral condyle and AEP was 6.6 cm (range 3.0–10.6 cm). The mean ratio of the anterior exit point and humeral length was 22.5% (range 15.1–30.8%). The minimum ratio was 15.1%.

Conclusion
A percutaneous distal pin insertion for humeral lengthening with an external fixator may be safely done within 15% length of the distal humerus. If pin insertion is required more proximal than distal 15% of the humeral shaft, an open procedure or preoperative radiographic assessment is advised to prevent iatrogenic radial nerve injury.
Effects of preoperative bicarbonate and lactate levels on short-term outcomes and prognosis in elderly patients with colorectal cancer
Authors: Liu Xiao-Yu , Li Zi-Wei , Zhang Bin , Liu Fei , Zhang Wei , Peng Dong 
Published: May 2023

Abstract
Purpose
The aim of this study was to analyze the effect of preoperative bicarbonate and lactate levels (LL) on the short-term outcomes and prognosis in elderly (≥ 65 years) patients with colorectal cancer (CRC).

Methods
We collected the information of CRC patients from Jan 2011 to Jan 2020 in a single clinical center. According to the results of preoperative blood gas analysis, we divided patients into the higher/lower bicarbonate group and the higher/lower lactate group, and compared their baseline information, surgery-related information, overall survival (OS) and disease-free survival (DFS).

Results
A total of 1473 patients were included in this study. Comparing the clinical data of the higher/lower bicarbonate group and the higher/lower lactate group, the lower group were older (p < 0.01), had higher rates of coronary heart disease (CHD) (p = 0.025), a higher proportion of colon tumors (p < 0.01), larger tumor size (p < 0.01), higher rates of open surgery (p < 0.01), more intraoperative blood loss (p < 0.01), higher overall complications (p < 0.01) and 30-day deaths (p < 0.01). The higher LL patients had more male patients (p < 0.01), higher body mass index (BMI) (p < 0.01) and drinking rates (p = 0.049), higher rates of type 2 diabetes mellitus (T2DM) (p < 0.01) and lower rates of open surgery (p < 0.01). In multivariate analysis, age (p < 0.01), BMI (p = 0.036), T2DM (p = 0.023), and surgical methods (p < 0.01) were independent risk factors of overall complications. The independent risk factors for OS included age (p < 0.01), tumor site (p = 0.014), tumor stage (p < 0.01), tumor size (p = 0.036), LL (p < 0.01), and overall complications (p < 0.01). The independent risk factors of DFS included age (p = 0.012), tumor site (p = 0.019), tumor stage (p < 0.01), LL (p < 0.01), and overall complications (p < 0.01).

Conclusion
Preoperative LL significantly affected postoperative OS and DFS of CRC patients, but bicarbonate might not affect the prognosis of CRC patients. Therefore, surgeons should actively focus on and adjust the LL of patients before surgery.
Effect of orthodontic treatment on the periapical radiolucency of endodontically treated teeth: a CBCT analysis
Authors: Kim Sunhong , Hwang Soo-Jeong , Seo Min-Seock 
Published: May 2023

Abstract
Background
This study aimed to evaluate periapical radiolucency of endodontically treated teeth before and after orthodontic treatment using cone-beam computed tomography (CBCT).

Methods
Patients who underwent orthodontic treatment at Wonkwang University Daejeon Dental Hospital between January 2009 and June 2022 were included based on the following criteria: root canal treatment, and availability of CBCT images taken before and after orthodontic treatment with an interval of > 1 year between both scans. Patients with primary teeth or orthodontic tooth extractions were excluded. The size of the periapical radiolucency (SPR) of the endodontically treated tooth was evaluated using CBCT. Pre-orthodontic treatment CBCT images and the latest post-orthodontic treatment CBCT images were analyzed. The selected teeth were further categorized based on the orthodontic duration, CBCT interval, the patient sex and age, the tooth type and position (maxilla or mandible), and quality of root canal obturation. Statistical analyses were performed to evaluate changes in SPR using the paired t-test and multiple regression analysis.

Results
In total, 115 teeth (37 anterior teeth, 22 premolars and 56 molars) from 61 patients (age, 14–54 years) were included, with 39 teeth from male patients and 76 teeth from female patients. The age was ranged between 14 and 54 years old, and mean age was 25.87 years old. The mean CBCT interval and orthodontic treatment period were 43.32 months and 36.84 months, respectively. Seventy-five teeth showed good obturation quality, 80 were not used as anchors during orthodontic treatment, and 71 were maxillary. The SPR size increased after orthodontic treatment for 56 teeth and decreased for 59 cases. The average change in SPR was -0.102 mm and the difference was not significant. Significant decrease of SPR were observed between female patients (p = 0.036) and maxillary teeth (p = 0.040).

Conclusion
Orthodontic treatment had no significant impact on the changes in the SPR in endodontically treated teeth in most categories. However, there was a significant difference among females and the maxillary teeth. In both categories, the size of radiolucency decreased significantly.
Decoding the key compounds and mechanism of Shashen Maidong decoction in the treatment of lung cancer
Authors: Cai Jieqi , Chen Yupeng , Wang Kexin , Li Yi , Wu Jie , Yu Hailang , Li Qingping , Wu Qi , Meng Wei , Wang Handuo , Lu Aiping , Huang Mianbo , Wei Genxia , Guan Daogang 
Published: May 2023

AbstractBackgroundLung cancer is a malignant tumour with the fastest increase in morbidity and mortality around the world. The clinical treatments available have significant side effects, thus it is desirable to identify alternative modalities to treat lung cancer. Shashen Maidong decoction (SMD) is a commonly used traditional Chinese medicine (TCM) formula for treating lung cancer in the clinic. While the key functional components (KFC) and the underlying mechanisms of SMD treating lung cancer are still unclear.MethodsWe propose a new integrated pharmacology model, which combines a novel node-importance calculation method and the contribution decision rate (CDR) model, to identify the KFC of SMD and to deduce their mechanisms in the treatment of lung cancer.ResultsThe enriched effective Gene Ontology (GO) terms selected from our proposed node importance detection method could cover 97.66% of enriched GO terms of reference targets. After calculating CDR of active components in key functional network, the first 82 components covered 90.25% of the network information, which were defined as KFC. 82 KFC were subjected to functional analysis and experimental validation. 5–40 μM protocatechuic acid, 100–400 μM paeonol or caffeic acid exerted significant inhibitory activity on the proliferation of A549 cells. The results show that KFC play an important therapeutic role in the treatment of lung cancer by targeting Ras, AKT, IKK, Raf1, MEK, and NF-κB in the PI3K-Akt, MAPK, SCLC, and NSCLC signaling pathways active in lung cancer.ConclusionsThis study provides a methodological reference for the optimization and secondary development of TCM formulas. The strategy proposed in this study can be used to identify key compounds in the complex network and provides an operable test range for subsequent experimental verification, which greatly reduces the experimental workload.