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Nevin Manimala Statistics

Early Hospital Readmission After Pediatric Liver Transplant: A Retrospective Analysis of the Society of Pediatric Liver Transplantation (SPLIT) Database

Pediatr Transplant. 2025 Feb;29(1):e14885. doi: 10.1111/petr.14885.

ABSTRACT

INTRODUCTION: Incidence of and risk factors for early hospital readmission (EHR) are poorly defined in pediatric liver transplant recipients. Therefore, we evaluated EHR incidence and risk factors for pediatric liver recipients in a nationally representative sample.

METHODS: Using the Society of Pediatric Liver Transplantation database, we retrospectively analyzed 2808 pediatric liver-only recipients transplanted 2011-2022. Recipient-, donor-, and center-level characteristics were evaluated as possible risk factors for EHR within 30 days of hospital discharge using multivariable modified Poisson regression.

RESULTS: Overall, 23% (N = 642) of pediatric recipients experienced EHR. Independent risk factors for EHR include diabetes (adjusted relative risk [aRR] 2.33, 95% CI: 1.41-3.86, p = 0.001), history of malignancy (aRR 1.59, 95% CI: 1.19-2.11, p = 0.002), and shorter length of transplant hospitalization. Recipients in the shortest length of stay quartile (median [IQR] 8 [7-9] days) had a ninefold increased risk for EHR compared with recipients in the longest length of stay quartile (34 [28-48] days) (aRR 8.86, 95% CI: 5.68-13.81, p < 0.001). Incidence of EHR did not vary by transplant center and was not associated with other characteristics of the donor (DCD vs. not DCD), recipient (age, race, sex, and diagnosis), procedure (whole vs. split liver, ischemic time), or transplant center.

CONCLUSION: We found the 30-day readmission rate for pediatric liver transplant recipients was 23%. Shorter hospital stays were a major risk factor for EHR, highlighting that longer initial transplant hospital stays may be beneficial for predischarge optimization and coordination of their complex care.

PMID:39641150 | DOI:10.1111/petr.14885

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Comparison of Perioperative Outcomes of Holmium Laser Enucleation of the Prostate for Standard (≤149 ml) Versus Very Large (≥150 ml) Prostate Glands: Retrospective Analysis of a Propensity Score Matched Cohort of 326 Patients

Eur Urol Open Sci. 2024 Nov 18;71:15-21. doi: 10.1016/j.euros.2024.10.019. eCollection 2025 Jan.

ABSTRACT

BACKGROUND AND OBJECTIVE: Our objective was to evaluate whether a very large prostate volume significantly affects the incidence of perioperative complications and compromises outcomes among patients undergoing holmium laser enucleation of the prostate (HoLEP).

METHODS: We retrospectively analyzed data for 1815 adult patients who underwent HoLEP at Evangelisches Krankenhaus Königin Elisabeth Herzberge, Berlin, between January 2019 and May 2024. Patients were divided into two groups according to their prostate volume: ≤149 ml (group A) and ≥150 ml (group B). Propensity score matching on age, body mass index, American Society of Anesthesiologists physical status, and the presence of an indwelling catheter was used to balance baseline differences. A Mann-Whitney U test was used for comparison of continuous variables between the groups, and a χ2 test for comparison of categorical variables, with p < 0.05 considered statistically significant. Postoperative complications were assessed according to the Clavien-Dindo classification.

KEY FINDINGS AND LIMITATIONS: After propensity score matching, 163 matched cases per group were analyzed. Group B had significantly longer median total operative time (76 vs 47 min; p < 0.001), enucleation time (42 vs 26 min; p < 0.001), coagulation time (11 vs 6 min; p < 0.001), and morcellation time (15 vs 7 min; p < 0.001). Clavien-Dindo grade ≥IIIb complications (8.7% vs 1.2%; p = 0.02) and blood transfusion (2.5% vs 0%; p = 0.045) were significantly more frequent in group B. Catheterization time (1.9 vs 2.0 d; p = 0.01) and the proportion of patients with postoperative residual urine volume ≤50 ml (85.2% vs 80.2%; p = 0.18) were comparable between the groups. Limitations include the retrospective and single-center study design.

CONCLUSIONS AND CLINICAL IMPLICATIONS: Prostate volume ≥150 ml is associated with a longer operative time, a higher rate of major complications, and a more frequent need for blood transfusion. Therefore, HoLEP for prostate glands ≥150 ml should be performed in experienced high-volume centers.

PATIENT SUMMARY: We compared outcomes of laser surgery for enlarged prostate glands of different sizes. We found that while the surgery is generally effective for very large prostates, it takes longer and has a higher risk of complications in comparison to more typical prostate sizes. However, this procedure is still the best treatment available for prostate enlargement and should be carried out in high-volume hospitals specializing in this treatment.

PMID:39641120 | PMC:PMC11617294 | DOI:10.1016/j.euros.2024.10.019

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Nevin Manimala Statistics

Assessing the Cause of Death for Men with Prostate Cancer Using Official Mortality Statistics or a Dedicated Cause of Death Committee: Results from 30-year ERSPC Rotterdam Data

Eur Urol Open Sci. 2024 Nov 16;71:11-14. doi: 10.1016/j.euros.2024.10.021. eCollection 2025 Jan.

ABSTRACT

For men with prostate cancer (PCa) within the European Randomized Study of Screening for Prostate Cancer (ERSPC), the cause of death is determined by a Cause of Death Committee (CODC) that evaluates all medical records using a fixed algorithm. The aim of this study was to compare the classification of PCa-specific mortality (PCSM) between the CODC and Statistics Netherlands. We calculated the sensitivity (PCSM agreement divided by total PCSM deaths according to the CODC) and specificity (agreement for other-cause mortality [OCM] divided by total OCM deaths according to the CODC) using the last 21-yr follow-up data from ERSPC Rotterdam. For the core age group (age 55-69 yr at randomization; n = 1732), the sensitivity was 86% (95% CI 83-89) and specificity was 93% (95% CI 91-94), with no statistical difference between the youngest ages and the oldest ages. Extrapolation of our findings to 30 yr of follow-up would result in an expected risk reduction of PCSM of 30% using data from the CODC and 33% using official statistics in favor of screening. In conclusion, our results support the use of official statistics in determining the cause of death, without compromising the main outcome of ERSPC Rotterdam.

PATIENT SUMMARY: We compared the classification of prostate cancer death between a dedicated trial committee and official statistics in the Netherlands. We found that official statistics are an accurate representation in determining the cause of death.

PMID:39641118 | PMC:PMC11615526 | DOI:10.1016/j.euros.2024.10.021

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Nevin Manimala Statistics

Saudi undergraduate students’ perceptions of plagiarism: A case of EFL research writing tasks during E-learning sessions

Heliyon. 2024 Nov 12;10(22):e39804. doi: 10.1016/j.heliyon.2024.e39804. eCollection 2024 Nov 30.

ABSTRACT

Plagiarism has long been a concern within the academic community. However, its prevalence and impact in the Middle Eastern context, particularly in Saudi Arabia, have not been sufficiently addressed. This study aims to investigate Saudi undergraduate students’ perceptions of plagiarism in English as a foreign language (EFL) research writing during e-learning sessions and examine whether their academic levels, grade point average (GPA), and gender play a substantial role in affecting their perceptions of plagiarism. A survey was conducted with 110 Saudi undergraduate students (33 males and 77 females) majoring in English at a university in Saudi Arabia. The findings indicate that most of the participants were aware of the most prevalent forms of plagiarism in EFL research writing during e-learning sessions. The findings also reveal that students’ GPA and gender did not have a statistically substantial impact on the participants’ perceptions. However, it was observed that students’ academic levels had a discernible effect on their perceptions. This study provides some practical implications for enhancing student awareness and assisting them in avoiding plagiarism in EFL research writing.

PMID:39641084 | PMC:PMC11617220 | DOI:10.1016/j.heliyon.2024.e39804

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Nevin Manimala Statistics

High-intensity ethanol binge drinking accentuates bone damage in induced apical periodontitis in rats

Heliyon. 2024 Nov 6;10(22):e40163. doi: 10.1016/j.heliyon.2024.e40163. eCollection 2024 Nov 30.

ABSTRACT

This study aimed to evaluate the effects of excessive and episodic consumption of ethanol (EtOH, a high-intensity drinking manner) on induced apical periodontitis in rats. Thirty-two animals were divided into the following four groups: control, EtOH, apical periodontitis, and EtOH + apical periodontitis. Ethanol exposure (3 g/kg 20 % w/v EtOH) was performed by orogastric gavage for 3 consecutive days, followed by 4 days of withdrawal for 4 weeks. Lesions were induced by exposing the dental pulp of the lower first molar and by the absence of any treatment/curative for 28 days. Finally, the animals were euthanized, and mandibles were collected. The mandible was divided medially, with one hemimandible being used for micro-computed tomography analysis of the volume of the periapical lesion and bone quality parameters, such as bone volume and trabecular bone assessments; the other hemimandible was used for histological analysis, with a descriptive histopathological analysis of the tissue and the pattern of bone loss presented, as well as an assessment of the collagen content present. The data were subjected to statistical analysis (one-way analysis of variance with Tukey’s post-hoc test). Our results showed that the EtOH + apical periodontitis group had a larger volume of periapical lesions than animals that were not exposed to ethanol. Additionally, bone quality parameters showed a reduction in bone volume and thickening of the trabeculae, associated with increased tissue destruction and reduced collagen content in the remnant region of the alveolar bone. These results suggest that exposure to EtOH in a pattern of excessive alcohol consumption is an aggravating factor in apical periodontitis and, consequently, in its progression, the quality and quantity of the alveolar bone remaining in the region of the periapical lesion are the modulating aspects.

PMID:39641066 | PMC:PMC11617731 | DOI:10.1016/j.heliyon.2024.e40163

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Prognostic factors for hepatocellular carcinoma recurrence after liver transplantation or resection – single-center experience

Heliyon. 2024 Nov 13;10(22):e40228. doi: 10.1016/j.heliyon.2024.e40228. eCollection 2024 Nov 30.

ABSTRACT

INTRODUCTION: The aim of the study was to assess prognostic factors associated with an increased risk of recurrence of hepatocellular carcinoma (HCC) after radical treatment.

MATERIALS AND METHODS: This is a retrospective, single-center analysis of data on HCC recurrence in patients who underwent radical treatment. Molecular tumor characteristics, baseline laboratory results and hepatic viral status were analyzed.

RESULTS: Data from 111 patients were included in the analysis. The most important prognostic factors for recurrence were vascular microinvasion (HR 4.54; 95 % CI 1.769-11.681; p 0.001), baseline white blood count (HR 2.13; 95 % CI 1.261-3.567; p 0.004) and baseline alpha-fetoprotein (HR 1.00009; 95 % CI 1.000001-1.00002; p 0.034). Microvascular invasion was only prognostic factor which correlate significantly with the overall survival (HR 5.04, 95 % CI 2.352-12.413; p < 0.001). PD-L1 expression was confirmed in 4 patients and all of them developed a disease recurrence. However, there was no statistically significant assosciation with prognosis. The presence of CD68 tumor-associated macrophages was confirmed in 62 patients, ranging from 5 % to 40 %. Analysis showed that CD68 was not associated with the risk of recurrence of HCC.

CONCLUSIONS: The results confirm that microvascular invasion is the most important factor associated with an increased risk of hepatocellular carcinoma recurrence and death, while PD-L1 and CD68 expression did not have an impact on patient prognosis.

PMID:39641063 | PMC:PMC11617879 | DOI:10.1016/j.heliyon.2024.e40228

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Nevin Manimala Statistics

The risk of immune-mediated inflammatory diseases following exposure to childhood maltreatment: A retrospective cohort study using UK primary care data

Heliyon. 2024 Nov 16;10(22):e40493. doi: 10.1016/j.heliyon.2024.e40493. eCollection 2024 Nov 30.

ABSTRACT

BACKGROUND: As a global public health issue, childhood maltreatment is associated with significant morbidity and mortality. We aimed to investigate the association between childhood maltreatment and immune-mediated inflammatory disorders (IMIDs).

METHODS: We conducted a retrospective matched open cohort study using a UK primary care database between January 1, 1995 and January 31, 2021. Clinical codes were used to identify patients exposed to childhood maltreatment who were matched by general practice (GP), age, and sex to up to four unexposed patients. Cox regression analysis was used to evaluate the risk of developing IMIDs (inflammatory bowel disease, coeliac disease, rheumatoid arthritis, psoriasis, multiple sclerosis, systemic lupus erythematosus) during follow-up in the exposed versus unexposed groups.

RESULTS: 256,130 exposed patients were matched to 712,478 unexposed patients. Those exposed to childhood maltreatment were 1) at an increased risk of developing Rheumatoid arthritis (aHR 1·39; 95 % CI 1·12-1·74) and Psoriasis (aHR 1·16; 95 % CI 1·10-1·23), 2) not statistically significantly at risk of developing inflammatory bowel disease (aHR 0·87; 95 % CI 0·75-1·00), multiple sclerosis (aHR 1·07; 95 % CI 0·77-1·49) and systemic lupus erythematosus (aHR 1·28; 95 % CI 0·89-1·85) and 3) at a reduced risk of coeliac disease (aHR 0·74; 95 % CI 0·62-0·88) compared to the unexposed group.

INTERPRETATIONS: Childhood maltreatment is estimated to affect one in three children globally; therefore, an increased risk of developing rheumatoid arthritis and psoriasis represents a substantial contribution to the burden of IMIDs. Implementation of broad public health approaches to prevent and detect childhood maltreatment and its negative downstream consequences, such as, IMID development, is essential.

PMID:39641040 | PMC:PMC11617863 | DOI:10.1016/j.heliyon.2024.e40493

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Nevin Manimala Statistics

Prevalence of SARS-CoV-2 antibodies at the University hospital Heidelberg and correlation with SARS-CoV-2 incidence

Heliyon. 2024 Nov 13;10(22):e40282. doi: 10.1016/j.heliyon.2024.e40282. eCollection 2024 Nov 30.

ABSTRACT

BACKGROUND: Since the onset of the SARS-CoV-2 pandemic in late 2019, many studies suggest that actual infection rates may far exceed reported cases. Therefore, this study provides a comprehensive overview of anti-SARS-CoV-2 antibody measurements and their significance in epidemiological surveillance, especially regarding the true extent of SARS-CoV-2 infections, allowing more detailed insights into the dynamics of the pandemic.

METHODS: Antibodies were measured using the Elecsys® Anti-SARS-CoV-2 assay for the nucleocapsid (N) protein and the SARS-CoV-2 IgG (sCOVG) assay for the spike (S) protein. A total of 25197 specimens from University Hospital Heidelberg were analyzed between May 2020 and December 2023, with 16957 samples measured for both antibodies, 2756 for anti-N only, and 5484 for anti-S only.For the epidemiological tracing of the SARS-CoV-2 incidence we analyzed changes in the anti-N positivity rate and anti-S positivity rate within our tertiary hospital setting across consecutive quarters.

RESULTS: Anti-N measurements allowed for a retrospective analysis of SARS-CoV-2 epidemiological developments, revealing significant changes (p <0.05) in the anti-N positivity rate following incidence peaks (increase) and low incidence periods (decrease) with only three non-significant transitions.On the other hand, the anti-S positivity rate showed only four significant transitions between consecutive quarters.

CONCLUSION: The anti-N positivity rate is an effective and straightforward retrospective serological tool for tracking epidemiological trends, while the anti-S rate is influenced by vaccination and epidemiology as well, making it inept for the tracing of epidemiological changes. Although the recent development in SARS-CoV-2 epidemiology with increasing intervals between infection waves already provide an enhanced statistical robustness, we recommend the determination of the anti-N positivity rate in larger study populations.

PMID:39641027 | PMC:PMC11617710 | DOI:10.1016/j.heliyon.2024.e40282

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Nevin Manimala Statistics

Flexural strength and surface hardness of nanocomposite denture base resins

Heliyon. 2024 Nov 15;10(22):e40442. doi: 10.1016/j.heliyon.2024.e40442. eCollection 2024 Nov 30.

ABSTRACT

PURPOSE: Higher bending forces during chewing and occlusal loading can lead to the deformation of denture bases. Roughness and microbial adhesion can be the result of improper care of the denture. Many attempts have been made to improve the properties of denture bases through the addition of different materials. The present study aimed to evaluate the surface hardness and flexural strength (FS) of newly formulated nanocomposite denture base resin made by adding zinc oxide (ZnO) and titanium dioxide (TiO2) nanoparticles in heat polymerized polymethyl methacrylate resin in concentrations of 1 % and 2 %.

METHODS: Rectangular metal master dies of dimension 65mm × 10mm × 3.3 mm for flexural strength and 30mm × 10mm × 3 mm for surface hardness were made. These dies were duplicated in 120 acrylic resin samples. These samples were divided into five groups in which group I is control group samples in conventional resin and group II,III, IV &V contained 1 % and 2 % concentrations of ZnO & TiO2 nanoparticles in heat cure acrylic resin. The processing and finishing of the models were done. Flexural strength was measured using a universal testing machine and surface hardness using a Rockwell hardness testing machine.

RESULTS: The minimum SH reported was 101.7 HRM while FS was 81.1 MPa and maximum was 118.7 HRM and 131.8 MPa respectively. The results showed that group IV containing 1 % TiO2 nanoparticles showed the highest surface hardness values whereas the flexural strength was highest in group II containing 1 % ZnO nanoparticles. The analysis of variance showed a p value of <0.001 which was statistically highly significant.

CONCLUSION: Nanocomposite denture base resins modified with ZnO & TiO2 nanoparticles have more flexural strength and surface hardness than conventional denture base resin.

CLINICAL IMPLICATION: The hardness of a denture base material can be increased by adding these nanoparticles for long term use in oral cavity and in cases prone to denture fracture.

PMID:39641016 | PMC:PMC11617853 | DOI:10.1016/j.heliyon.2024.e40442

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The effect of tactile cueing on dual task performance in Parkinson’s disease. A systematic review and meta-analysis

Clin Park Relat Disord. 2024 Nov 17;11:100284. doi: 10.1016/j.prdoa.2024.100284. eCollection 2024.

ABSTRACT

BACKGROUND: Dual-task (DT) performance is impaired in Parkinson’s disease (PD), contributing to bradykinesia, postural instability, freezing of gait, and falls. Tactile cueing, including vibrotactile stimulation, has been suggested to improve DT performance in PD.

RESEARCH QUESTION: Does tactile cueing affect DT performance in PD, specifically measured by dual-task cost (DTC)?

METHODS: A systematic review was conducted in PubMed and EMBASE up to October 30, 2023, following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. Eligible studies were those in English that examined the effects of tactile cueing and/or closed-loop vibrotactile stimulation on DT performance in adults over 18 with idiopathic PD. The primary outcome, DTC, was calculated as the percentage change in performance from DT to single-task using the formula: [(single-task – dual-task)/single-task]* 100. A meta-analysis using a random-effects model pooled standardized mean differences (SMD) of DTC. Statistical significance was set at p < 0.05.

RESULTS: From 130 initially identified studies, eight were included in the review. Four studies with 374 participants were included in meta-analyses focusing on walking speed and step length. Three of the four studies indicated that tactile cueing improved DTC for these parameters. However, the SMD for walking speed (-109.69; 95 % CI -454.89 to 235.51, p = 0.39) and step length (-14.21; 95 %CI -53.25 to 24.83, p = 0.33) showed weak evidence of improvement.

CONCLUSION: The meta-analysis provides weak evidence that tactile cueing may enhance walking speed and step length in DT conditions in PD. Rigorous objective studies are still lacking in this field of research.

PMID:39640985 | PMC:PMC11617393 | DOI:10.1016/j.prdoa.2024.100284