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Nevin Manimala Statistics

External cardioversion of atrial fibrillation and flutter in patients with cardiac implantable electrical devices

Pacing Clin Electrophysiol. 2022 Nov 4. doi: 10.1111/pace.14616. Online ahead of print.

ABSTRACT

BACKGROUND: Atrial fibrillation and flutter are often treated with external electrical cardioversion (ECV) in patients with potentially electrically sensitive cardiovascular implantable electronic devices (CIED). Long-term follow-up data on contemporary CIED undergoing ECV is sparse. The aim is to investigate shock-related complications and impact on CIEDs.

METHODS: All ECV procedures from 2010 to 2020 in patients with CIED performed at a tertiary university hospital were identified in the Danish National Patient Registry. Changes in device measurements after ECV were retrospectively studied and procedure-related complications were identified by review of medical records.

RESULTS: We analyzed 763 ECV procedures in 372 patients, median device implant time 1.9 year. The mean age of patients was 69.9 ± 9.9 years of which 73.4% were men. We identified two cases of device programming changes and four cases of premature battery depletion (≤3 years after device implant). Minor changes in device measurements were found for impedances, sensing, and pacing thresholds. No patients died due to ECV-related device dysfunctions within the first 12 months after cardioversions.

CONCLUSION: External cardioversion in patients with contemporary pacemakers and implantable cardioverter-defibrillators seems safe in the majority of patients. Clinically important changes in device function following cardioversion were rarely observed but may be critical for device function. In an observational study, causality between cardioversion and device dysfunction cannot be established. For patient safety, we suggest that routine device interrogation after cardioversion still should be part of standard care. This article is protected by copyright. All rights reserved.

PMID:36333921 | DOI:10.1111/pace.14616

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Nevin Manimala Statistics

Self-Report on Men’s Beliefs and Perceptions on Their Alcohol Use/Misuse in Southeast Nigeria

Am J Mens Health. 2022 Nov-Dec;16(6):15579883221130193. doi: 10.1177/15579883221130193.

ABSTRACT

Alcohol consumption among humans has lasted for several centuries. In Africa, drinking is normal for men despite its consequences. The study is aimed at determining the rate of alcohol consumption in the study area, health consequences of alcoholism and factors that reinforce alcoholism among men. The study, which adopted descriptive survey design, was conducted at Ezeagu, Southeast Nigeria. Quota sampling was used to select participants (400). A questionnaire was used to collect data, and analysis was done using descriptive statistics. The data revealed that men in the area are heavy drinkers, but their level of awareness about its health consequences is low. The study shows that the factors preventing men from quitting alcohol consumption include peer group influence and traditional ceremonies/festivals. The study concludes that alcoholism has adverse health consequences. Men hardly quit alcohol consumption because of factors within their communities, therefore; raising the awareness level about the adverse health implications of alcoholism is a necessity.

PMID:36333918 | DOI:10.1177/15579883221130193

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Nevin Manimala Statistics

Deciphering interactions between the marine dinoflagellate Prorocentrum lima and the fungus Aspergillus pseudoglaucus

Environ Microbiol. 2022 Nov 4. doi: 10.1111/1462-2920.16271. Online ahead of print.

ABSTRACT

The comprehension of microbial interactions is one of the key challenges in marine microbial ecology. This study focused on exploring chemical interactions between the toxic dinoflagellate Prorocentrum lima and a filamentous fungal species, Aspergillus pseudoglaucus, which has been isolated from the microalgal culture. Such interspecies interactions are expected to occur even though they were rarely studied. Here, a co-culture system was designed in a dedicated microscale marine-like condition. This system allowed to explore microalgal-fungal physical and metabolic interactions in presence and absence of the bacterial consortium. Microscopic observation showed an unusual physical contact between the fungal mycelium and dinoflagellate cells. To delineate specialized metabolome alterations during microalgal-fungal co-culture metabolomes were monitored by high-performance liquid chromatography coupled to high-resolution mass spectrometry. In-depth multivariate statistical analysis using dedicated approaches highlighted (1) the metabolic alterations associated with microalgal-fungal co-culture, and (2) the impact of associated bacteria in microalgal metabolome response to fungal interaction. Unfortunately, only a very low number of highlighted features were fully characterised. However, an up-regulation of the dinoflagellate toxins okadaic acid and dinophysistoxin 1 was observed during co-culture in supernatants. Such results highlight the importance to consider microalgal-fungal interactions in the study of parameters regulating toxin production. This article is protected by copyright. All rights reserved.

PMID:36333915 | DOI:10.1111/1462-2920.16271

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Nevin Manimala Statistics

MOSAICS: A Software Suite for Analysis of Membrane Structure and Dynamics in Simulated Trajectories

Biophys J. 2022 Nov 3:S0006-3495(22)00903-1. doi: 10.1016/j.bpj.2022.11.005. Online ahead of print.

ABSTRACT

Molecular Dynamics (MD) simulations have become the predominant computational analysis method in membrane biophysics, as this technique is uniquely suited for investigations of complex molecular systems through the relevant physical principles. Owing to continued improvements in scope and performance, the trajectories generated through this approach contain ever-increasing amounts of information, which must be synthesized and simplified in post-analysis using tools that are not only mechanistically insightful but also computationally efficient and highly scalable. Here, we introduce MOSAICS, a self-contained high-performance suite of C++ software tools designed for advanced analyses of lipid bilayer structure and dynamics from MD trajectories. MOSAICS is to our knowledge the most comprehensive software suite of this kind, enabling analysis of a wide array of morphological and kinetic properties, for both simple and complex membranes, irrespective of system size or resolution. Importantly, MOSAICS is designed to provide spatial distributions of all computed quantities, with built-in masking tools, noise filtering and statistical-significance metrics to facilitate quantitative interpretations of the trajectory data; it is also fully parallelized and can therefore leverage the capabilities of supercomputing facilities. Despite its technical sophistication, MOSAICS is user-friendly and requires minimal computational expertise, making it accessible to researchers of all skill levels.

PMID:36333911 | DOI:10.1016/j.bpj.2022.11.005

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Nevin Manimala Statistics

Preparing fourth year medical students to care for patients with opioid use disorder: how this training affects their intention to seek addiction care opportunities during residency

Med Educ Online. 2023 Dec;28(1):2141602. doi: 10.1080/10872981.2022.2141602.

ABSTRACT

BACKGROUND & OBJECTIVES: In 2021, the USA recorded 100,000 annual deaths from drug overdose, representing the most frequent cause of death in adults under age 55. The integration of care for substance use disorders (SUDs) into undergraduate medical education is not well established. It is unclear whether a short course on management of opioid use disorder (OUD) offered to fourth year medical students could increase graduating students’ knowledge and preparedness to treat these disorders.

METHODS: We designed a 2-hour interactive case-based session on patient care for OUD and delivered it virtually as part of a Transition to Residency course. A retrospective pre-/post-test assessment instrument determined the impact of this session on students’ perceived knowledge, confidence, and intention to seek further educational opportunities for OUD.

RESULTS: Of 144 participants, 58 students (40.3%) completed the retrospective pre-/post- survey. There were statistically significant improvements in perceived knowledge and attitudes on the 12-item survey. The largest gains in perceived knowledge on a 5-point scale occurred in the categories regarding buprenorphine induction (pre 2.9; post 4.22; p < 0.001), managing inpatient opioid withdrawal (pre 2.84; post 4.27; p < 0.001), and the role of methadone in treating withdrawal (pre 3.16; post 4.29; p < 0.001). All (n = 58) survey respondents would recommend the training to a colleague and felt that the session would benefit their professional practice. Over 90% (93.1%) of respondents planned on seeking additional SUD learning opportunities during residency.

CONCLUSIONS: A 2-hour interactive case-based teaching session delivered to medical students improved perceived knowledge, attitudes, and future interest in obtaining education around OUD. As the opioid epidemic shows no sign of abating, we would advocate for the inclusion SUD education as part of Transition to Residency courses.

PMID:36333902 | DOI:10.1080/10872981.2022.2141602

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Nevin Manimala Statistics

Airway Phenotypes and Nocturnal Wearing of Dentures in Elders with Sleep Apnea

J Dent Res. 2022 Nov 4:220345221133278. doi: 10.1177/00220345221133278. Online ahead of print.

ABSTRACT

The objective of this study was to examine to what extent the anatomic characteristics of the upper airway can influence the effect of nocturnal wearing of dentures on the sleep of edentulous elders with untreated sleep apnea. This study used the data from a randomized crossover clinical trial and an exploratory approach to address its objectives. Cone beam computed tomography scans of 65 edentulous individuals (female, n = 37; male, n = 28; mean ± SD age, 74.54 ± 6.42 y) with untreated obstructive sleep apnea (OSA) were used to identify anatomic variables. Polysomnography data were collected by means of one portable overnight recording. The respiratory variable values, including apnea-hypopnea index (AHI), with and without denture worn during sleep were used to calculate the change. Statistical analyses included multiple linear regressions, cluster analysis, and binary logistic regressions. A receiver operator characteristic curve was used to illustrate the accuracy of the statistical model. The regression model explained 15.8% (R2) of AHI change. An increase in the lateral dimension of the minimum cross-sectional area was associated with a decrease in AHI, oxygen desaturation index, and respiratory arousal index changes (P ≤ 0.041). Furthermore, an increase in the length of the hypopharynx was associated with an increase in AHI and oxygen desaturation index changes (P ≤ 0.027). An increase in the lateral dimension of the minimum cross-sectional area of the upper airway was associated with a decreased likelihood of being in the group having a worsened AHI (odds ratio = 0.85; 95% CI, 0.76 to 0.95; P = 0.006). An increase in the length of the oropharynx was associated with an increased likelihood of having increased AHI (odds ratio = 1.10; 95% CI, 1.01 to 1.20; P = 0.026). The nocturnal aggravation of respiratory variables in edentulous individuals with OSA who wear dentures at night can be linked to certain anatomic characteristics of the upper airway. Replication of these findings may open novel avenues for personalized advice regarding nocturnal wearing of dentures in edentulous individuals with OSA (ClinicalTrials.gov: NCT01868295).

PMID:36333889 | DOI:10.1177/00220345221133278

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Nevin Manimala Statistics

Evaluation and Comparison of the Accuracy of Transvaginal ultrasound and MRI for the diagnosis of deep rectal endometriosis:A cross-sectional study

Int J Gynaecol Obstet. 2022 Nov 4. doi: 10.1002/ijgo.14554. Online ahead of print.

ABSTRACT

OBJECTIVE: The present research aimed to determine and compare the value of magnetic resonance imaging (MRI) and transvaginal ultrasonography (TVUS) in the diagnosis of rectal endometriosis.

METHODS: In this cross-sectional study, 555 patients with rectal endometriosis, who had undergone MRI and TVUS before laparoscopic operation, were included. The sensitivity, specificity and accuracy of these two imaging modalities were evaluated and compared based on histopathological reports and three different kinds of rectal endometriosis surgeries (shaving as a first group, disc and segmental resection methods as a second group).

RESULTS: Sensitivity, specificity, accuracy, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (LR+) and negative likelihood ratio (LR-) of ultrasound in the diagnosis of rectal endometriosis were respectively 69.55 (65.4-73.4), 91.30 (72-98.9),70.4 (66.4-74.17),11.48 (9.77-13.43),99.46 (98-99.86),8.0 (2.12-30.1) and 0.3 (0.28-0.4). These values were 51.37 (47.1-55.6), 79.17 (57.8-92.9), 52.53 (48.3-56.6), 6.64 (5.39-8.16), 98.26 (96.26-99.2), 2.47 (1.13-5.4) and 0.6 (0.49-077) for MRI. Even though ultrasound had better accuracy for detection of superficial rectal endometriosis (group 1) (P<0.0001), the sensitivity, specificity, and accuracy of both imaging modalities in diagnosis of deep rectal lesions (group 2) were almost identical.

CONCLUSION: TVS should be considered as a first-line modality for RE diagnosis, mainly owing to its greater availability, lower cost, and higher accuracy.

PMID:36333881 | DOI:10.1002/ijgo.14554

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Nevin Manimala Statistics

Letter to the editor: What is the value of statistical testing of observational data?

Vet Surg. 2022 Nov 4. doi: 10.1111/vsu.13904. Online ahead of print.

NO ABSTRACT

PMID:36333870 | DOI:10.1111/vsu.13904

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Nevin Manimala Statistics

Sickness Symptoms in Kidney Transplant Recipients: A Scoping Review

West J Nurs Res. 2022 Nov 4:1939459221128125. doi: 10.1177/01939459221128125. Online ahead of print.

ABSTRACT

Sickness symptoms (depressive symptoms, anxiety, and fatigue) are common among people with chronic illness, often presenting as a symptom cluster. Sickness symptoms persist in many patients with chronic kidney disease, even after kidney transplantation (KT); however, little is known about sickness symptom-induced burden in KT recipients. This scoping review synthesizes available evidence for sickness symptoms in KT recipients, including findings on symptom prevalence, predictors, outcomes, interrelationships, and clustering. Among 38 reviewed studies, none identified sickness symptoms as a cluster, but we observed interrelationships among the symptoms examined. Fatigue was the most prevalent sickness symptom, followed by anxiety and depressive symptoms. Predictors of these symptoms included demographic, clinical, and psychosocial factors, and health-related quality of life was the most researched outcome. Future research should use common data elements to phenotype sickness symptoms, include biological markers, and employ sophisticated statistical methods to identify potential clustering of sickness symptoms in KT recipients.

PMID:36333867 | DOI:10.1177/01939459221128125

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Nevin Manimala Statistics

Neurodevelopment in school aged children after intrauterine exposure to antipsychotics

Acta Psychiatr Scand. 2022 Nov 4. doi: 10.1111/acps.13517. Online ahead of print.

ABSTRACT

OBJECTIVE: Antipsychotics are increasingly prescribed in pregnancy, yet little is known about potential long-term developmental effects on children. In this study we investigated the effect of prenatal antipsychotic exposure on neurodevelopmental functioning in school-aged children.

METHODS: We performed a cross-sectional neurodevelopmental assessment of 91 children aged 6-14 years whose mothers had severe mental illness (SMI) and were either exposed or unexposed to antipsychotic medication during pregnancy. Neurodevelopmental outcomes were assessed using validated neurodevelopmental assessment instruments to examine the child’s IQ and global cognitive functioning, and the presence of any psychiatric disorders and/or learning problems in the child was assessed by parental report.

RESULTS: No statistically significant associations were found between antipsychotic exposure during pregnancy and either adverse neurodevelopmental outcomes (IQ, neuropsychological function), likelihood of psychiatric diagnosis, or learning problems based on parental report. Analyses were likely limited in power to detect subtler differences in neurodevelopmental functioning due to small sample size and heterogeneity of the sample.

CONCLUSIONS: In this exploratory cohort study, intrauterine exposure to antipsychotics was not associated with any adverse effect on IQ or neurodevelopmental functioning in a cohort of school aged children (6-14 years). This article is protected by copyright. All rights reserved.

PMID:36333825 | DOI:10.1111/acps.13517