Systematic review of machine learning models in predicting the risk of bleed/grade of esophageal varices in patients with liver cirrhosis: A comprehensive methodological analysis.

Esophageal varices (EV) in liver cirrhosis carry high mortality risks. Traditional endoscopy, which is costly and subjective, prompts a shift towards machine learning (ML). This review critically evaluates ML applications in predicting bleeding risks and grading EV in patients with liver cirrhosis. Following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, we conducted a systematic review of studies using ML to predict the risk of variceal bleeding and/or grade EV in liver disease patients. Data extraction and bias assessment followed the CHARMS (CHecklist for critical Appraisal and data extraction for systematic Reviews of prediction Modeling Studies) checklist and PROBAST (Prediction model Risk Of Bias Assessment Tool) tool, respectively. Due to the heterogeneity of the study, a meta-analysis was not feasible; instead, descriptive statistics summarized the findings. Twelve studies were included, highlighting the use of various ML models such as extreme gradient boosting, artificial neural networks, and convolutional neural networks. These studies demonstrated high predictive accuracy, with some models achieving area under the curve values above 99%. However, significant heterogeneity was noted in input variables, methodologies, and outcome measures. Moreover, a substantial portion of the studies exhibited unclear or high risk of bias, mainly due to insufficient participant numbers, unclear handling of missing data, and a lack of detailed reporting on endoscopic procedures. ML models show significant promise in predicting the risk of variceal bleeding and grading EV in patients with cirrhosis, potentially reducing the need for invasive procedures. Nonetheless, the current literature reveals considerable heterogeneity and methodological limitations, including high or unclear risks of bias. Future research should focus on larger, prospective trials and the standardization of ML assessment criteria to confirm these models' practical utility in clinical settings.

Safety of Endoscopic Procedures in Thrombocytopenia and Neutropenia: Embracing Assurance.

BACKGROUND: Few studies have evaluated the post-endoscopic adverse events in patients with neutropenia and thrombocytopenia. Current guidelines do not provide clear direction on this topic. AIM: We explore the pooled rates of safety and adverse effects of endoscopic interventions in thrombocytopenia and neutropenia patients via a systematic review & meta-analysis. METHODS: Databases, including Medline, Scopus, and Embase, were searched (in May 2023) using specific terms for studies evaluating the clinical outcomes of endoscopy in patients with thrombocytopenia and neutropenia. Standard meta-analysis methods were employed using the random-effects model. I2% heterogeneity was used to assess the heterogeneity. RESULTS: Six studies and four studies evaluated endoscopic outcomes in patients with thrombocytopenia and neutropenia respectively with mean age was 56 years. The pooled rate of total post-biopsy bleeding and total post-polypectomy bleeding among patients with thrombocytopenia was 4% (95% CI 1-11), I2 = 84%, and 12% (95% CI 3-36) I2 = 43%. The total rate of post procedure-related bleeding in thrombocytopenia was 5% (95% CI 1-14) I2 = 95%. The pooled rate of post-endoscopic infection (fever from any cause, bacteremia) in neutropenia was 10% (95% CI 3-28%) I2 = 96%. On sub analysis, the pooled rate of bacteremia and 30 days all-cause mortality in neutropenia was 4% (95% CI 3-5%) I2 = 0% and 13% (95% CI 4-34%) I2 = 95% respectively. CONCLUSION: Our data supports the notion that endoscopic procedures are safe for neutropenic, thrombocytopenic patients with suitable indications and reasonable functional status and have an acceptable risk/benefit ratio.

Predicting short-term thromboembolic risk following Roux-en-Y gastric bypass using supervised machine learning.

BACKGROUND: Roux-en-Y gastric bypass (RYGB) is a widely recognized bariatric procedure that is particularly beneficial for patients with class III obesity. It aids in significant weight loss and improves obesity-related medical conditions. Despite its effectiveness, postoperative care still has challenges. Clinical evidence shows that venous thromboembolism (VTE) is a leading cause of 30-d morbidity and mortality after RYGB. Therefore, a clear unmet need exists for a tailored risk assessment tool for VTE in RYGB candidates. AIM: To develop and internally validate a scoring system determining the individualized risk of 30-d VTE in patients undergoing RYGB. METHODS: Using the 2016-2021 Metabolic and Bariatric Surgery Accreditation Quality Improvement Program, data from 6526 patients (body mass index ≥ 40 kg/m2) who underwent RYGB were analyzed. A backward elimination multivariate analysis identified predictors of VTE characterized by pulmonary embolism and/or deep venous thrombosis within 30 d of RYGB. The resultant risk scores were derived from the coefficients of statistically significant variables. The performance of the model was evaluated using receiver operating curves through 5-fold cross-validation. RESULTS: Of the 26 initial variables, six predictors were identified. These included a history of chronic obstructive pulmonary disease with a regression coefficient (Coef) of 2.54 (P < 0.001), length of stay (Coef 0.08, P < 0.001), prior deep venous thrombosis (Coef 1.61, P < 0.001), hemoglobin A1c > 7% (Coef 1.19, P < 0.001), venous stasis history (Coef 1.43, P < 0.001), and preoperative anticoagulation use (Coef 1.24, P < 0.001). These variables were weighted according to their regression coefficients in an algorithm that was generated for the model predicting 30-d VTE risk post-RYGB. The risk model's area under the curve (AUC) was 0.79 [95% confidence interval (CI): 0.63-0.81], showing good discriminatory power, achieving a sensitivity of 0.60 and a specificity of 0.91. Without training, the same model performed satisfactorily in patients with laparoscopic sleeve gastrectomy with an AUC of 0.63 (95%CI: 0.62-0.64) and endoscopic sleeve gastroplasty with an AUC of 0.76 (95%CI: 0.75-0.78). CONCLUSION: This simple risk model uses only six variables to assist clinicians in the preoperative risk stratification of RYGB patients, offering insights into factors that heighten the risk of VTE events.

Global trends in hepatitis C-related hepatocellular carcinoma mortality: A public database analysis (1999-2019).

BACKGROUND: Hepatitis C is the leading cause of chronic liver disease worldwide and it significantly contributes to the burden of hepatocellular carcinoma (HCC). However, there are marked variations in the incidence and mortality rates of HCC across different geographical regions. With the advent of new widely available treatment modalities, such as direct-acting antivirals, it is becoming increasingly imperative to understand the temporal and geographical trends in HCC mortality associated with Hepatitis C. Furthermore, gender disparities in HCC mortality related to Hepatitis C are a crucial, yet underexplored aspect that adds to the disease's global impact. While some studies shed light on gender-specific trends, there is a lack of comprehensive data on global and regional mortality rates, particularly those highlighting gender disparities. This gap in knowledge hinders the development of targeted interventions and resource allocation strategies. AIM: To understand the global and regional trends in Hepatitis C-related HCC mortality rates from 1990 to 2019, along with gender disparities. METHODS: We utilized the Global Burden of Disease database, a comprehensive repository for global health metrics to age-standardized mortality rates due to Hepatitis C-related HCC from 1999 to 2019. Rates were evaluated per 100000 population and assessed by World Bank-defined regions. Temporal trends were determined using Joinpoint software and the Average Annual Percent Change (AAPC) method, and results were reported with 95% confidence intervals (CI). RESULTS: From 1990 to 2019, overall, there was a significant decline in HCC-related mortality rates with an AAPC of -0.80% (95%CI: -0.83 to -0.77). Females demonstrated a marked decrease in mortality with an AAPC of -1.06% (95%CI: -1.09 to -1.03), whereas the male cohort had a lower AAPC of -0.52% (95%CI: -0.55 to -0.48). Regionally, East Asia and the Pacific demonstrated a significant decline with an AAPC of -2.05% (95%CI: -2.10 to -2.00), whereas Europe and Central Asia observed an uptrend with an AAPC of 0.72% (95%CI: 0.69 to 0.74). Latin America and the Caribbean also showed an uptrend with an AAPC of 0.06% (95%CI: 0.02 to 0.11). In the Middle East and North Africa, the AAPC was non-significant at 0.02% (95%CI: -0.09 to 0.12). North America, in contrast, displayed a significant upward trend with an AAPC of 2.63% (95%CI: 2.57 to 2.67). South Asia (AAPC -0.22%, 95%CI: -0.26 to -0.16) and Sub-Saharan Africa (AAPC -0.14%, 95%CI: -0.15 to -0.12) trends significantly declined over the study period. CONCLUSION: Our study reports disparities in Hepatitis C-related HCC mortality between 1999 to 2019, both regionally and between genders. While East Asia and the Pacific regions showed a promising decline in mortality, North America has experienced a concerning rise in mortality. These regional variations highlight the need for healthcare policymakers and practitioners to tailor public health strategies and interventions. The data serves as a call to action, particularly for regions where mortality rates are not improving, emphasizing the necessity for a nuanced, region-specific approach to combat the global challenge of HCC secondary to Hepatitis C.

Trends in mortality from gastrointestinal, hepatic, and pancreatic cancers in the United States: A comprehensive analysis (1999-2020).

Background and Aim: This study investigates temporal trends in gastrointestinal cancer-related mortality in the United States between 1999 and 2020, focusing on differences by sex, age, and race. Methods: We investigated the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research multiple causes of death database (Years 1999-2020) for gastrointestinal cancer-related mortality with a focus on the underlying cause of death. Results: A total of 3 115 243 gastrointestinal cancer-related deaths occurred from 1999 to 2020. The overall age-adjusted mortality rate decreased from 46.7 per 100 000 in 1999 to 38.4 per 100 000 in 2020. The average annual percent change (AAPC) for the study period was -0.9% (95% CI: -1.0%, -0.9%, P < 0.001), with no significant difference in AAPC between the sexes but some difference between races and related to individual cancers. African Americans and Asian Americans, and Pacific Islanders experienced a greater decrease in mortality compared with Whites. Mortality rates for American Indian and Alaskan Native populations also decreased significantly from 1999 to 2020 (P < 0.001). There were significant declines in esophageal, stomach, colon, rectal, and gallbladder cancer-related mortality but increases in the small bowel, anal, pancreatic, and hepatic cancer-related mortality (P < 0.001), with variation across different sexes and racial groups. Conclusion: While overall gastrointestinal cancer-related mortality declined significantly in the United States from 1999 to 2020, mortality from some cancers increased. Furthermore, differences between sexes and racial groups underscore crucial differences in gastrointestinal cancer mortality, highlighting areas for future research.

Renal replacement therapy prior to liver transplant and inpatient mortality in patients without advanced kidney disease: A nationwide study.

Background and Aim: The utility of renal replacement therapy (RRT) before liver transplant (LT) in patients without end-stage renal disease (ESRD) or advanced chronic kidney disease (CKD-IV/V) is debatable and lacks data support. We aimed to evaluate the impact of RRT on patients undergoing LT. Methods: We used the National Readmission Database (2016-2019) to identify all index hospitalizations undergoing RRT before LT (cases). A matched comparison cohort of similar hospitalizations without RRT before LT was identified (controls) after 1:1 propensity score matching for age, gender, and available comorbidities. Results: We matched 364 cases (RRT before LT) to 364 controls (LT without prior RRT). There was no statistical difference in all-cause inpatient mortality (4.9% vs 3.6% P = 0.4). A significantly greater proportion of cases were associated with ICU admission (40.7% vs 17.0%, P < 0.001) and RRT requirement post LT (100% vs 17%, P < 0.001). There was no difference in 30- (hazard ratio [HR] 1.1, 0.4-2.6), 60- (HR 0.9, 0.4-1.8), or 90-day (HR 0.8, 0.4-1.6) inpatient mortality between the groups. Also, 180-day survival estimates were comparable (P = 0.5). The results were similar in patients with no chronic kidney disease (CKD) and CKD-III. Conclusion: RRT prior to LT, in patients without advanced CKD or ESRD, was associated with greater instances of ICU stay and need for future RRT. Also, 30-, 60-, and 90-day inpatient mortality rates were similar, and 180-day survival estimates were comparable.

Non-Pharmacological Approach to Diet and Exercise in Metabolic-Associated Fatty Liver Disease: Bridging the Gap between Research and Clinical Practice.

This review provides a practical and comprehensive overview of non-pharmacological interventions for metabolic-associated fatty liver disease (MASLD), focusing on dietary and exercise strategies. It highlights the effectiveness of coffee consumption, intermittent fasting, and Mediterranean and ketogenic diets in improving metabolic and liver health. The review emphasizes the importance of combining aerobic and resistance training as a critical approach to reducing liver fat and increasing insulin sensitivity. Additionally, it discusses the synergy between diet and exercise in enhancing liver parameters and the role of gut microbiota in MASLD. The paper underscores the need for a holistic, individualized approach, integrating diet, exercise, gut health, and patient motivation. It also highlights the long-term benefits and minimal risks of lifestyle interventions compared to the side effects of pharmacological and surgical options. The review calls for personalized treatment strategies, continuous patient education, and further research to optimize therapeutic outcomes in MASLD management.

Role of Duodenal Bulb Biopsy in Diagnosing Suspected Celiac Disease in Adult Patients: A Systematic Review and Meta-analysis.

BACKGROUND AND AIMS: Current guidelines recommend multiple biopsies from the first (D1) and second (D2) part of duodenum to establish a diagnosis of celiac disease. In this meta-analysis we aimed to find whether D1 biopsy can increase the diagnostic yield of adult celiac disease. METHODS: Literature databases were searched until January 2023 for studies reporting diagnosis of celiac disease in the adult population using D1 biopsy. Meta-analysis was done using a random-effects model. Heterogeneity was assessed by I2% and 95% prediction interval statistics. Measured outcomes were diagnostic yield with D1 and D2 biopsies and from 4 versus 2 biopsy samples. RESULTS: A total of 16 studies were included in the final analysis. The pooled diagnostic rate of celiac disease from D1 biopsy was 77.4% [95% CI (64.7-86.5, I2 94%)] and from D2 biopsy was 75.3% [60.8-85.7, I2 96%]. The pooled rate of increase in diagnostic yield with D1 biopsy was 6.9% I [4.6-10.2, I2 66%]. The pooled diagnosis rate with 2 biopsy samples were 77.3% [50-92, I2 93%] and 86.4% I [58.4-96.7, I2 87%] from D1 and D2 respectively, whereas that with 4 biopsy samples were 83.3% [49.8-96.2, I2 76%] and 70.5% I [51-84.6, I2 96%] from D1 and D2, respectively, the difference being non-significant. CONCLUSION: Our study demonstrates that taking 4 biopsy samples does not incur any additional diagnostic value over taking 2 biopsy samples from each duodenum segment. Although biopsy from the D1 and D2 has similar diagnostic yield in the adult population, there was an overall increase in diagnostic yield with D1 biopsy, especially in those with a patchy disease distribution.

When a Cure Becomes a Curse: The Complex Clinical Scenario Involving Amiodarone Therapy and BRASH (Bradycardia, Renal failure, Atrioventricular Nodal Blockade, Shock, and Hyperkalemia) Syndrome.

BRASH [bradycardia, renal failure, atrioventricular (AV) nodal blockade, shock, and hyperkalemia] syndrome is a recently recognized clinical condition that is rare but can be potentially life-threatening. Its pathogenesis is characterized by a self-perpetuating cycle of bradycardia that is potentiated by the concomitant occurrence of medication use, hyperkalemia, and renal failure. AV nodal blocking agents are commonly implicated in BRASH syndrome. We report a case of a 97-year-old female patient with a medical history of heart failure with preserved ejection fraction, atrial fibrillation, hypertension, hyperlipidemia, and hypothyroidism who presented to the emergency department with a one-day history of diarrhea and vomiting. Upon presentation, the patient was hypotensive, bradycardic, and had severe hyperkalemia, acute renal failure, and anion gap metabolic acidosis, raising concern for BRASH syndrome. The treatment of each component of BRASH syndrome resulted in the resolution of the symptoms. The association of BRASH syndrome with amiodarone, the only AV nodal blocking agent in this particular case, is not commonly reported.

Refractory Short-Lasting Unilateral Neuralgiform Headache Attacks With Conjunctival Injection and Tearing (SUNCT) Responding to Erenumab Adjuvant Therapy: A Case Report.

Many patients with short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) fail to respond to the first-line treatment of lamotrigine. Additionally, data for other treatments are limited in this rare headache disorder. SUNCT involves activation of the trigeminal nerve which uses the neuropeptide calcitonin gene-related peptide (CGRP); thus CGRP-targeted treatments may be beneficial in this disorder. We present a patient with SUNCT who failed to respond optimally to 10 medications and four surgical treatments. However, she had minimal attacks after erenumab 140 mg was added to carbamazepine 200 mg three times daily and pregabalin 75 mg twice daily. Decreasing any of these three medications worsened her attacks. Our case represents the second case report of a SUNCT patient responding to a CGRP monoclonal antibody, suggesting this treatment may be a consideration in refractory SUNCT.

Intramuscular ancient schwannoma of the axillary nerve.

We present the case of an adolescent with an intramuscular ancient schwannoma of the axillary nerve which, to the best of our knowledge, has not been reported before. Due to its deep location, intramuscular schwannoma has less clinical signs and hence, is difficult to diagnose. Ancient schwannoma, characterised by degeneration due to long course, is rare and can be mistaken for malignancy due to heterogeneous intensity and degeneration evident on MRI and nuclear atypia on histopathology. It is important to differentiate it from malignancy based on a clinically benign swelling with a long history, well-encapsulated mass on MRI with the split fat sign and absence of significant mitotic activity despite nuclear atypia. The aim of surgery should be enucleation of the tumour while preserving the function of the parent nerve.

Risk Factors and Subtyping of Ischemic Stroke in Young Adults in the Indian Population.

OBJECTIVE: To evaluate the risk factors and etiological subtyping of ischemic stroke in young adults in the Indian population. METHODS: This is a retrospective study of 160 patients, in the age group of 18 to 45 years with ischemic stroke, registered at a tertiary care hospital in Delhi, India between March 2014 and January 2018. Hypertension, diabetes mellitus, dyslipidemia, smoking, alcohol consumption, previous history of stroke, valvular heart disease, coronary artery disease (CAD), atrial fibrillation, family history, and migraine were considered as the identifiable risk factors. Stroke subtyping was done according to the Trial of Org 10172 in Acute Stroke Treatment (TOAST) criteria. RESULTS: The mean age of the patients was 36.2 years with 74% being males. Headache, vomiting, difficulty in speech, and hemiparesis were the common complaints at presentation. Common risk factors identified were hypertension (50%), prior stroke or transient ischemic attack (TIA; 32%), dyslipidemia (25%), family history of stroke (18%), and smoking (15%). The most common TOAST subtype was undetermined (64%), followed by other determined cause (ODC; 20%), and cardioembolism (15%). CONCLUSION: There is a certain dissimilarity in the risk factors for ischemic stroke in young adults living in developing countries compared to those belonging to developed nations. Primary and secondary prevention targeted at the modifiable risk factors of ischemic stroke is necessary. Cerebral artery dissection, being a prevalent cause of ischemic stroke in young adults, should be carefully evaluated. A more appropriate stroke classification system specifically tailored for younger patients is needed.

Prevalence of cognitive dysfunction, psychological morbidity and abuse in the community-based elderly population in India.

BACKGROUND: The elderly population in India is expected to grow enormously by 2050 owing to an increase in life expectancy. Community-based data on the prevalence of psychological morbidity, abuse and cognitive dysfunction are scarce. AIMS: To determine the prevalence of cognitive dysfunction, psychological morbidity and abuse in the elderly population in a resettlement colony from East Delhi, India. METHODS: A cross-sectional study was conducted on the elderly population of a resettlement colony, in East Delhi, comprising 5 blocks and 12 subblocks with a total population of 65 000. The study was carried out within 2 months from April to August 2017. The self-reported questionnaires were administered to detect cognitive dysfunction, psychological morbidity, social support and pattern of abuse. RESULTS: The mean age of the study subjects was 70.29 years (53.8% were males, 78.8% were married, 86.9% were Hindus and 75% were living with children). A total of 106 subjects (66.6%) belonged to the lower socioeconomic strata with 120 (75%) living with children. Most of the subjects (70.6%) studied below the primary level of education. As detected on Goldberg General Health Questionnaire-12, 56.9% of the subjects had psychological morbidity. On Dementia Assessment by Rapid Test, 33.1% of subjects were screened positive. The pattern of abuse reported was as follows: emotional abuse (16.9%), physical abuse (7.5%), sexual abuse (1.9%) and social neglect (18.1%). The social support score was found to be 46.22 (12.22). CONCLUSION: The results of this community-based study signify that appropriate steps at the policy level need to be undertaken so that abuse as well as neglect can be prevented. In addition, screening the elderly population helps to detect early cognitive dysfunction, psychological morbidity, abuse victims and individuals with poor support.

Gray Transformation of Internal Medicine.

Aim To study the profile of patients hospitalized in an internal medicine facility of a public hospital and explore if there is a shift in the age distribution of hospitalized patients toward an older age group. Methods The study was conducted at a tertiary care hospital in Delhi where the department of medicine has six units and a particular unit is in charge of the emergency room one day a week and every sixth Sunday. A total of 716 patients hospitalized in the medicine ward through the emergency services each Wednesday and every sixth Sunday (i.e, admission days of a particular unit) during a period for six months (November 2017 to April 2018) were retrospectively identified and their name, age, sex, comorbidities, final diagnosis, duration of hospital stay, and the outcome were noted. This was compared with similar data collected from a previous study conducted in the same setting in the years 2010-2011. The data were analyzed using Stata version 13 software (StataCorp, College Station, Texas). Findings were compared using the chi-squared test or t-test, wherever applicable. Results The mean age of patients hospitalized in 2010-2011 was 43.9 years, and this had increased to 48 years in 2018-2019 suggesting that the average patient being hospitalized in general medicine wards of a public hospital was now approximately five years older. Thirty-nine percent (39%) of the individuals admitted were more than 60 years of age in 2018-2019 as compared to 28.0% in 2010-2011. There was a significant rise in the cases of cardiovascular and gastrointestinal diseases and a decline in poisoning and infectious diseases from the year 2010-2011 to 2018-2019. A significantly higher prevalence of cardiovascular diseases, diabetes, and respiratory diseases was found in the current study among older adults. Conclusion There has been a significant shift in the distribution of hospitalized patients in the internal medicine in-patient wards toward the older age group during the last decade. Also, there is a significant difference between the disease profiles of older and young patients. A comprehensive approach to geriatric medicine should be introduced and followed.

Brachysyndactyly in Poland Syndrome.

A 36-year-old man presented with incidental findings of an asymmetric chest with hypoplastic and flattened left anterior chest wall due to absent left pectoralis major. He also had short and webbed fingers in the left hand. These deformities were present since birth. Chest X-ray showed hyperlucency on the left side. Computerized tomography (CT) scan showed an absence of the left pectoralis major. X-ray of the left hand showed hypoplasia of the proximal phalanx and aplasia of the middle and distal phalanges of the second digit, and aplasia of the middle phalanges of the third and fourth digits. A diagnosis of left-sided Poland syndrome with associated ipsilateral brachysyndactyly, which is a very rare entity, was made. The patient opted against any reconstructive procedure as he had a minimal functional limitation.