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Nevin Manimala Statistics

Comparative Study of Common Bile Duct Diameter between Normal and Post Cholecystectomy Cases Using Trans-abdominal Ultrasonography

Kathmandu Univ Med J (KUMJ). 2022 Jan-Mar;20(77):66-69.

ABSTRACT

Background Increase in common bile duct diameter can occur because of different causes. Post cholecystectomy status is one of the potential causes. Many studies done in the past show different results and are hence inconclusive. Objective To see if the post cholecystectomy cases would have a statistically significant change in common bile duct diameter. Method We carried out a study in 100 cases (46 post cholecystectomy cases and 54 cases with intact gall bladder, measuring their common bile duct diameters and performing an unpaired t test to see if the mean in common bile duct among these two groups of cases was statistically significant. Result One hundred cases, 46 post cholecystectomy cases and 54 cases with intact gall bladder were included in our study. An unpaired t-test was used to compare the common bile duct diameters in these two groups. Our findings showed that the difference in common bile duct diameter between the cases with intact gall bladder and those who underwent cholecystectomy was significant for both one tailed and two tailed studies (p < 0.001). Hence, it can be stated that post cholecystectomy status increases the common bile duct diameter. Conclusion An increased Common bile duct diameter in post cholecystectomy case could be because of the post cholecystectomy status itself and not due to some other obstructive cause. So careful decision is necessary before subjecting the patient to further invasive/non-invasive investigations and treatments.

PMID:36273294

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Nevin Manimala Statistics

Impact of Albendazole Therapy on Clinical and Radiological Outcomes at One Month in Patients with Active Solitary Neurocysticercosis Patients

Kathmandu Univ Med J (KUMJ). 2022 Jan-Mar;20(77):61-65.

ABSTRACT

Background Cerebral neurocysticerosis is a common parasitic disease of human nervous system but evidence on duration of albendazole therapy and their outcomes in this condition is inadequate Objective To evaluate the impact of varying duration of albendazole therapy on the clinical and radiological outcomes at one month in patients with active solitary neurocysticercosis. Method This is an interventional study conducted at Upendra Devkota Memorial National Institute of Neurological and Allied sciences, Bansbari over 1 year (2017 March – 2018 February). One hundred eighteen patients with new onset seizure secondary to active solitary cysticercal granuloma either received albendazole therapy for 1, 3, 9 or 21 days with the usual care or only received the usual care. Clinical and radiological outcomes were observed at one month follow-up. The difference in the proportion of the outcome measures between intervention and control groups were assessed using chi-square test. Result Our study included 118 patients with male predominance of 61.9%. Albendazole therapy for 3, 9 and 21 days reduced headache by 57.2%, 70.0% and 63.1% respectively which was higher than those with 1-day therapy or without the therapy. This difference in the proportion was statistically significant at p=0.001. Though seizure recurrence also declined but the difference was not significant (p=0.406) between groups. However, at one-month follow-up, majority of patients who received albendazole for 9 days (14, 70%) and 21 days (14, 73.7%) had normal lesion, while most calcified lesion (21, 67.7%) was observed in those who did not receive albendazole therapy. The difference between lesion among the groups was significant (p < 0.001). Conclusion Albendazole therapy in patients with active solitary neurocysticercosis for 9 days is as effective as 21 days and better than 3 days in headache control and lesion dissolution but seizure control could be achieved irrespective of the treatment.

PMID:36273293

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Nevin Manimala Statistics

Comparison of Effect of Yoga versus Aerobic Exercise on Waist Circumference, Waist-Hip Ratio and Body Mass Index in Overweight and Obese Adult Individuals

Kathmandu Univ Med J (KUMJ). 2022 Jan-Mar;20(77):38-42.

ABSTRACT

Background Obesity is becoming serious global public health issue due to sedentary lifestyle and bad eating habits. Dietary and lifestyle practices are directly related to obesity, which can cause serious health problems like cardiac ailments, diabetes, and hypertension etc. Vast varieties of options are available for weight reduction including physical exercises, various diet plans and also the pharmacological agents. Physical activity improves the fitness of the individual and helps in reducing the ill effects of the obesity. Objective To compare the effects of Yoga and Aerobic Exercise on weight circumference, waisthip ratio (WHR) and body mass index (BMI) in overweight and obese individuals. Method An experimental study was started with purposive sampling. Sixty overweight and obese individuals from the community were divided equally into two groups, one group was given supervised yoga asana and the other group was given supervised aerobic exercise for 6 weeks. Waist circumference, waist hip ratio and body mass index were taken pre and post intervention. Result Statistically significant difference was seen in pre and post intervention value of waist circumference, waist hip ratio and body mass index in both the groups with the p value < 0.05. However there was no statistical significant difference noted in waist hip ratio in individuals performing aerobic exercises as p value was > 0.05. Conclusion Both the interventions showed significant reduction in waist circumference, waist hip ratio and body mass index, while better results were noted in the individuals performing yoga asanas.

PMID:36273288

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Nevin Manimala Statistics

Comparative Study between the Use of Pigtail Catheters and Traditional Chest Tube Drain in Cases with Pneumothorax

Kathmandu Univ Med J (KUMJ). 2022 Jan-Mar;20(77):24-28.

ABSTRACT

Background Pneumothorax is a condition in which air or other gas is present in the pleural cavity. Mainstay of management of pneumothorax is to remove the air from the pleural space usually done by chest tube insertion. There is still uncertainty whether minimal invasive management with pigtail catheter is sufficient for the management of pneumothorax. Objective To find the effectiveness, safety, tolerability, efficacy of pigtail catheters and large bore chest tubes. Method Prospective comparative study was done in Dhulikhel Hospital between August 2019 till August 2021. Chest tube insertion used to be the only available treatment modality till December 2020 (15 months). Following January 2021 after obtaining ethical clearance for use of pigtail insertion for pneumothorax, this treatment modality was done (8 months). Result Among 76 patients, 52(68.4%) underwent a large bore chest tube and 24 (34.6%) pigtail catheter patients. Mean age of the patients was 48 years (SD 18.01). Duration of hospital stay and length of hospital stay was more in large bore catheters and less in pigtail catheters. Eight hours post tube placement of the expansion of the lungs was present in pigtail and was statistically significant. Pain killer used in pigtail catheters was limited to Non-steroidal anti-inflammatory drugs, for large bore catheter opioids were added and were statistically significant. Conclusion Pigtail catheter is nearly effective as compared to traditional wide bore catheters.

PMID:36273286

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Nevin Manimala Statistics

An immunogenetic investigation of 30 autoimmune and autoinflammatory diseases and their links to psychiatric disorders in a nationwide sample

Immunology. 2022 Oct 22. doi: 10.1111/imm.13597. Online ahead of print.

ABSTRACT

Autoimmune and autoinflammatory diseases (AIIDs) involve a deficit in an individual’s immune system function, whereby the immune reaction is directed against self-antigens. Many AIIDs have a strong genetic component, but they can also be triggered by environmental factors. AIIDs often have a highly negative impact on the individual’s physical and mental wellbeing. Understanding the genetic underpinning of AIIDs is thus crucial both for diagnosis and for identifying individuals at high risk of an AIID and mental illness as a result thereof. The aim of the present study is to provide systematic statistical and genetic analyses to assess the role of HLA alleles in 30 AIIDs and to study the links between AIIDs and psychiatric disorders. We leveraged the Danish iPSYCH Consortium sample comprising 65,534 individuals diagnosed with psychiatric disorders or selected as part of a random population sample, for whom we also had genetic data and diagnoses of AIIDs. We employed regression analysis to examine comorbidities between AIIDs and psychiatric disorders and associations between AIIDs and HLA alleles across seven HLA genes. Our comorbidity analyses showed that overall AIID and five specific AIIDs were associated with having a psychiatric diagnosis. Our genetic analyses found 81 significant associations between HLA alleles and AIIDs. Lastly, we show connections across AIIDs, psychiatric disorders and infection susceptibility through network analysis of significant HLA associations in these disease classes. Combined, our results include both novel associations as well as replications of previously reported associations in a large sample, and highlight the genetic and epidemiological links between AIIDs and psychiatric disorders. This article is protected by copyright. All rights reserved.

PMID:36273265 | DOI:10.1111/imm.13597

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Nevin Manimala Statistics

Plasma metabolome of healthy and Rhodococcus equi-infected foals over time

Equine Vet J. 2022 Oct 22. doi: 10.1111/evj.13894. Online ahead of print.

ABSTRACT

BACKGROUND: Foals that develop pulmonary ultrasonographic lesions on Rhodococcus equi (R. equi) endemic farms are treated with antibiotics because those at risk of developing clinical pneumonia (~20%) cannot be recognised early. Candidate biomarkers identified using metabolomics may aid targeted treatment strategies against R. equi.

OBJECTIVES: 1) To describe how foal ageing affects their plasma metabolome (birth to 8 weeks) and 2) To establish the effects that experimental infection with Rhodococcus equi (R. equi) has on foal metabolome.

STUDY DESIGN: Experimental study.

METHODS: Nine healthy newborn foals were experimentally infected with R. equi as described in a previous study. Foals were treated with oral antibiotics if they developed clinical pneumonia (n = 4, clinical group) or remained untreated if they showed no signs of disease (n = 5, subclinical group). A group of unchallenged foals (n = 4) was also included in the study. By the end of the study period (8 weeks), all foals were free of disease. This status was confirmed with transtracheal wash fluid evaluation and culture as well as thoracic ultrasonography. Plasma metabolomics was determined by GC-MS weekly for the study duration (8 weeks).

RESULTS: Foal’s plasma metabolome was altered by ageing (birth to 8 weeks) and experimental infection with R. equi as demonstrated using multivariate statistical analysis. The intensities of 25 and 28 metabolites were altered by ageing and infection (p < 0.05) respectively. Furthermore, 20 metabolites changed by more than 2-fold between clinical and subclinical groups.

MAIN LIMITATIONS: The number of foals is limited. Foals were experimentally infected with R. equi.

CONCLUSIONS: Ageing and R. equi infection induced changes in the plasma metabolome of foals. These results provide an initial description of foal’s plasma metabolome and serve as background for future identification of R. equi pneumonia biomarkers.

PMID:36273247 | DOI:10.1111/evj.13894

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Nevin Manimala Statistics

Automated clinical coding: what, why, and where we are?

NPJ Digit Med. 2022 Oct 22;5(1):159. doi: 10.1038/s41746-022-00705-7.

ABSTRACT

Clinical coding is the task of transforming medical information in a patient’s health records into structured codes so that they can be used for statistical analysis. This is a cognitive and time-consuming task that follows a standard process in order to achieve a high level of consistency. Clinical coding could potentially be supported by an automated system to improve the efficiency and accuracy of the process. We introduce the idea of automated clinical coding and summarise its challenges from the perspective of Artificial Intelligence (AI) and Natural Language Processing (NLP), based on the literature, our project experience over the past two and half years (late 2019-early 2022), and discussions with clinical coding experts in Scotland and the UK. Our research reveals the gaps between the current deep learning-based approach applied to clinical coding and the need for explainability and consistency in real-world practice. Knowledge-based methods that represent and reason the standard, explainable process of a task may need to be incorporated into deep learning-based methods for clinical coding. Automated clinical coding is a promising task for AI, despite the technical and organisational challenges. Coders are needed to be involved in the development process. There is much to achieve to develop and deploy an AI-based automated system to support coding in the next five years and beyond.

PMID:36273236 | DOI:10.1038/s41746-022-00705-7

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Nevin Manimala Statistics

The influence of a virtual reality entertainment program on depressive symptoms and sedentary behaviour in inpatient stroke survivors: a research protocol for a pilot randomized controlled trial

Pilot Feasibility Stud. 2022 Oct 22;8(1):230. doi: 10.1186/s40814-022-01189-8.

ABSTRACT

BACKGROUND: Sedentary behaviour among stroke inpatients may be due to high rates of depressive symptoms after stroke. Thus, efforts to address depressive symptoms among stroke inpatients are warranted to in turn lessen sedentary behaviour. Despite evidence that virtual reality (VR) is emerging as a method to help with depression, the use of VR to improve depression among inpatient stroke survivors has yet to be studied. In this paper, we report on the protocol investigating the feasibility of a VR entertainment system at improving depressive symptoms among stroke survivors receiving inpatient rehabilitation.

METHODS: In this single-blind randomized controlled trial, 30 inpatient stroke survivors from the rehabilitation unit at Kelowna General Hospital will be randomized to either (1) intervention: 3 times per week of VR entertainment for duration of inpatient rehabilitation or (2) control: usual care. Individuals will be included if they have a confirmed diagnosis of stroke, are 19 years of age or older, able to provide informed consent, have physician clearance to participate in the study (medically stable or fit), or are able to understand English. Outcome measures to address depressive symptoms (primary outcome), sedentary behaviour, motivation, anxiety, stress, and happiness (secondary outcome) will be administered at two timepoints: (1) baseline (T1) and (2) post-intervention (T2). Study analyses will consider study feasibility indicators and clinical (statistical) outcomes. Means and standard deviations (for continuous variables) and frequencies and proportions (for categorical variables) will be used to summarize the variables. Feasibility indicators will be dichotomized into either ‘success’ if they meet the a priori criteria, or ‘revise’ if they do not meet the criteria. Intervention effects post-intervention (T2) for the primary and secondary clinical outcomes will be estimated using linear regression including baseline (T1) controlling for age and sex.

DISCUSSION: The results of this trial will add to our understanding of depression and sedentary behaviour among individuals receiving inpatient stroke rehabilitation as well as the feasibility of a VR entertainment program to improve depressive symptoms, which will in turn may lessen sedentary behaviour in inpatient stroke survivors.

TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04011202 . First posted July 8, 2019 (study postponed from March 2020 to July 2021 due to COVID-19).

PMID:36273223 | DOI:10.1186/s40814-022-01189-8

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Nevin Manimala Statistics

Evaluating the impact of price regulation (Drug Price Control Order 2013) on antibiotic sales in India: a quasi-experimental analysis, 2008-2018

J Pharm Policy Pract. 2022 Oct 22;15(1):68. doi: 10.1186/s40545-022-00466-4.

ABSTRACT

BACKGROUND: In India, due to a lack of population-level financial risk protection mechanisms, the expenditure on healthcare is primarily out-of-pocket in nature. Through Drug Price Control Orders (DPCOs), the Indian Government attempts to keep medicine prices under check. The aim of this study was to measure the potential impact of DPCO 2013 on the utilization of antibiotics under price regulation in India using large nationally representative pharmaceutical sales data.

METHODS: We used interrupted time series analysis, a quasi-experimental research design to estimate the impact of DPCO 2013 on the utilization of antibiotics in the private sector in India. Indian pharmaceutical sales data set, PharmaTrac from a market research company-All Indian Origin Chemists and Distributors Limited-was used for the study. The data are collected from a panel of around 18,000 stockists across 23 different regions of the country. The primary outcome measure is the percentage change (increase or decrease) in the sales volume of the antibiotics under DPCO 2013, measured in standard units (SUs).

RESULTS: Our estimates suggest that post-intervention (after notification of DPCO 2013) there was an immediate reduction (level change) in the sales of antibiotics under DPCO 2013 by 3.7% (P > 0.05), followed by a sustained decline (trend change) of 0.3% (P > 0.05) as compared to the pre-intervention trend at the molecule level, but both changes were statistically insignificant. However, in terms of ‘average monthly market share,’ the DPCO 2013 notification resulted in a sharp reduction of 579% (P < 0.05) (level change) followed by a sustained increase of 9.5% (P > 0.05) (trend change) in the ‘market share of antibiotics under DPCO’ as compared to pre-intervention trend.

CONCLUSIONS: The impact of DPCO 2013 in terms of the overall increase in the utilization of antibiotics under price regulation was limited but there was a switch from non-price controlled antibiotics to price regulated antibiotics (notified under DPCO 2013). We argue that policies on price control need to be complemented with continuous monitoring of market behavior to have a measurable and long-term impact.

PMID:36273222 | DOI:10.1186/s40545-022-00466-4

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Nevin Manimala Statistics

Adapting the self-assessment of contextual fit scale for implementation of evidence-based practices in adolescent HIV settings

Implement Sci Commun. 2022 Oct 22;3(1):115. doi: 10.1186/s43058-022-00349-4.

ABSTRACT

BACKGROUND: Contextual fit is an important variable in the implementation of evidence-based programs (EBPs). The objectives of the current study were to examine the psychometric properties of the adapted Self-Assessment of Contextual Fit (SACF) measure for HIV clinical care settings (calling it SACF-HIV) and explore how perceptions of contextual fit varied across two different interventions (an intervention to scale up tailored motivational interviewing and an individually focused HIV prevention intervention) and 12 clinical sites.

METHODS: We collected SACF-HIV data as part of a larger cross-project implementation science study (ATN 153). The study sample includes 128 clinicians, community health workers, interventionists, adherence counselors, and other members of the prevention and care team who engage in the implementation of EBPs at 12 HIV prevention and clinical care sites in the USA. We assessed the internal consistency of the SACF-HIV using Cronbach’s alpha and examined the sub-dimensionality of the scale with an exploratory factor analysis. To explore concurrent validity, we examined Pearson’s correlation coefficients between the adapted scale and fit-related sub-scale scores from the Evidence-Based Practice Attitudes Scale-50 (EBPAS-50). Variation in perceptions of fit by intervention was examined using descriptive statistics.

RESULTS: Internal consistency of the adapted scale was strong (α=0.895). Factor analyses revealed two sub-scales-one capturing general insights regarding contextual fit, such as perceptions of skill, experience, and alignment with client needs (loadings ranging from .5 to .84), and a second centering perceptions regarding implementation support, such as resources and administrative support (loadings ranging from .89 to .97). Concurrent validity was supported by statistically significant correlations in the expected direction with EBPAS-50 fit-related sub-scales (r=.33-.35, p ≤ 0.05). SACF-HIV mean fit scores varied by intervention and the difference was statistically significant (2.78 vs. 2.53, p < 0.05).

CONCLUSIONS: There are relatively few tools assessing perceptions of contextual fit in HIV clinical settings. These results suggest the 12-item adapted SACF is a reliable, valid global assessment of perceptions of contextual fit and implementation support. The SACF-HIV can be used by practitioners and researchers interested in understanding an implementation context when planning to prepare and support EBP implementation.

TRIAL REGISTRATION: TMI ClinicalTrials.gov NCT03681912; YMPH ClinicalTrials.gov NCT03488914.

PMID:36273221 | DOI:10.1186/s43058-022-00349-4