Publications by authors named "Kumar Guresh"

Background: The purpose of the present study was to evaluate clinicopathological characteristics, patterns of recurrence, survival outcomes, and implications for the addition of chemoradiotherapy for patients with resected perihilar and intrahepatic cholangiocarcinoma (CCA).

Materials And Methods: For the present retrospective study, we identified 38 and 10 patients with resected perihilar and intrahepatic CCA. In perihilar CCA, adjuvant treatment was given as chemotherapy ( = 13) or chemoradiotherapy ( = 10).

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Background: Bowel colonization with antimicrobial-resistant bacteria has been associated with worse clinical outcomes in patients with cirrhosis; however, it has not been studied in patients with acute-on-chronic liver failure (ACLF). We evaluated whether fecal isolation of carbapenem-resistant gram-negative bacteria (CR-GNB) among patients with ACLF affects short-term outcomes.

Methods: Patients of APASL-ACLF (n = 339) were screened between June 2020 and December 2021, and 150 were included.

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Background: Liver and splenic stiffness measurements (LSM and SSM) are useful to predict varices and clinical decompensation in cirrhosis. SSM values are highly variable and overlapping and no guidelines exists on what constitutes normal SSM, that might limit interpretation of results.

Methods: Consecutive subjects with LSM < 6 kPa and reliable SSM (FibroScan630 Expert device with spleen-dedicated module) and no vascular liver disease were analysed for significant correlations of SSM values with age, sex, BMI, portal and splenic vein diameter, splenic diameter, liver fat and diabetes.

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  • Scientists created a new mouse model to study alcohol-associated hepatitis (AAH) that is more similar to humans than older models.
  • They fed male mice a special diet containing alcohol and a chemical called thioacetamide for 12 weeks to induce liver damage.
  • The results showed that these mice had major signs of liver problems, inflammation, and changes in gut bacteria, making it a better tool to study AAH compared to other methods.
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Introduction: Severe alcohol-associated hepatitis (SAH) carries high 1-month mortality. Corticosteroids provide a modest 28-day but not 90-day survival benefit, due to development of infections and organ failures. Granulocyte colony-stimulating factor (GCSF) has shown promise in patients with SAH by its immunomodulatory and regenerative capabilities.

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  • The study focuses on the COVID-19 clinical outcomes in patients with liver disease compared to those without, analyzing data from India.
  • Out of 232 liver disease patients, a significant 59.1% tested positive for COVID-19, with those having additional health conditions at a greater risk for severe outcomes and mortality.
  • The research also uncovered differences in genetic mutations between the COVID-19 strains affecting liver disease patients and those without, suggesting an important distinction in how the virus manifests in these two groups.
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Background: Viral hepatitis, particularly B and C, is a major cause of liver cirrhosis and cancer, leading to about 1.4 million deaths annually. Alarmingly, less than 20% of those with hepatitis are aware of their status, with only 6.

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Objectives: Beta-blockers and endoscopic variceal band ligation (VBL) have been preferred therapies for primary prophylaxis of variceal bleeding. However, the choice of therapy in patients with advanced liver disease with high-risk varices is not clear. A comparison of these therapies alone or in combination to prevent the first variceal bleed in advanced cirrhosis patients was carried out.

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Background And Objectives: Limited studies have dwelt upon the treatment of unresectable, nonmetastatic cholangiocarcinoma as a separate entity. Hence, the management protocols are not clearly defined for this subgroup of patients. We aimed to analyze patients treated for unresectable, nonmetastatic cholangiocarcinoma.

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Background: Viscoelastic tests are now routinely used for coagulopathy correction in patients with cirrhosis. Thromboelastography (TEG) and rotational thromboelastometry (RoTEM®) are the most widely studied tests in this population. However, they have not been compared with each other in critically ill patients with liver disease presenting with nonvariceal bleed.

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Objectives: This study aimed to evaluate the safety and efficacy of therapeutic plasma exchange (TPE) in pediatric acute liver failure (PALF).

Methods: All children aged 2-18 years with PALF were included. The intervention cohort included a subset of PALF patients undergoing complete three sessions of TPE, whereas the matching controls were derived by propensity score matching from the patient cohort who did not receive any TPE.

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Background And Aims: Terlipressin infusion is effective in hepatorenal syndrome (HRS-AKI). However, its efficacy for HRS-AKI resolution in acute-on-chronic liver failure (ACLF) patients has been suboptimal. Progression of AKI is rapid in ACLF.

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Background And Aims: Patients with Child-Turcotte-Pugh class B and C cirrhosis with upper gastrointestinal bleeding (UGIB) have systemic as well as localized (in the mucosa of the esophagus and stomach) fibrinolysis. The aim of this study was to evaluate the efficacy and safety of tranexamic acid in the treatment of acute UGIB in patients with cirrhosis.

Approach And Results: A total of 600 patients with advanced liver cirrhosis (Child-Turcotte-Pugh class B or C) presenting with UGIB were randomly allocated to either the tranexamic acid (n=300) or the placebo group (n=300).

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Background: Metabolic associated fatty liver disease (MAFLD) is a relatively new term with limited studies done in South Asian population.

Aim: To determine prevalence and clinico-epidemiological characteristics of MAFLD in general population.

Methods: A cross-sectional study was conducted in randomly selected regions across Delhi, India.

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Objective: This study aimed to analyze risk factors and develop a predictive model for early allograft loss due to early graft dysfunction (EGD) in adult live-donor liver transplantation (LDLT).

Methods: Data of patients who underwent LDLT from 2011 to 2019 were reviewed for EGD, associated factors, and outcomes. A homogeneous group of 387 patients was analyzed: random cohort A (n = 274) for primary analysis and random cohort B (n = 113) for validation.

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 The objective of the study was to identify accurate site of liver biopsy under ultrasound and elastography guidance and compare the shear wave elastography (SWE) and transient elastography (TE) diagnostic accuracy with histopathological correlation.  This was a prospective single-center study where patients scheduled for nonfocal liver biopsy were divided into two groups (group U: ultrasound; group E elastography) by sequential nonrandom selection of patients. Elastography was performed before the biopsy and biopsies from the maximum stiffness segment were taken.

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Background: Combined hepatocellular-cholangiocarcinoma (cHCC-CCA) is an uncommon form of primary liver carcinoma. It is heterogenous in terms of morphology, immunohistochemistry, radiology, and clinical features; making it a challenging entity for diagnosis.

Aims: The purpose of the present study was to evaluate clinicopathological characteristics of patients with cHCC-CCA.

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Article Synopsis
  • A study evaluated the effectiveness of pegylated interferon (PEG-IFN) alpha 2b in patients with HBeAg-negative chronic hepatitis B (CHB) who experienced clinical relapse after stopping long-term nucleotide analogues (NAs).
  • Out of 118 patients, 69.5% had a relapse; 44 were treated with PEG-IFN for 48 weeks, while the remaining 38 were given tenofovir alafenamide fumarate (TAF) based on when their relapses occurred.
  • Ultimately, 15.9% of those treated with PEG-IFN achieved hepatitis B surface antigen (HBsAg) loss, indicating some effectiveness, while no patients receiving TAF achieved
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Background: Severe alcohol-associated hepatitis (SAH) presenting as acute-on-chronic liver failure (ACLF) has high mortality. Severe hepatic inflammation and ongoing hepatocellular cell death lead to rapid rise in portal pressure, a hyperdynamic circulation that might precipitate infections and organ failures.

Methods: Consecutive SAH patients were classified based on baseline HVPG measurement as 6to < 12 mmHg, 12to < 20 mmHg, and ≥ 20 mmHg.

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Background: Renal tubular epithelial cells (RTECs) cause maladaptive repair and perpetuate renal fibrosis.

Aim: To evaluate urinary neutrophil gelatinase-associated lipocalin (NGAL) and RTEC as risk factors for non-resolution of acute kidney injury (AKI-NR) at day seven and chronic kidney disease (CKD) in critically ill patients with cirrhosis.

Methods: We performed urinary NGAL and microscopy at enrolment and day 7 in all patients.

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Background And Aims: Twenty per cent albumin (1.5 g/kg at diagnosis and 1 g/kg on day three, infused over six-hour duration) is recommended particularly in high-risk spontaneous bacterial peritonitis (SBP). Whether reduced dose albumin infusion is as effective as the standard dose albumin infusion is not clear.

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Dilated and dysfunctional gut lymphatic vessels (LVs) have been reported in experimental cirrhosis. Here, we studied LVs in duodenal (D2)-biopsies of liver cirrhosis patients and investigated the prognostic role of a LV marker, podoplanin (PDPN), in predicting the mortality of patients with cirrhosis. A prospective, single-center cohort study was performed in liver cirrhosis patients ( = 31) and matched healthy controls ( = 9).

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Background & Aims: A high mean arterial pressure (MAP) target has been associated with improved renal outcomes in patients with cirrhosis, though it has not been studied in critically ill patients with cirrhosis and septic shock (CICs). We compared the efficacy of a high (80-85 mmHg; H-MAP) vs. low (60-65; L-MAP) target MAP strategy in improving 28-day mortality in CICs.

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Background & Aims: Hepatopulmonary syndrome (HPS) is characterised by a defect in arterial oxygenation induced by pulmonary vascular dilatation in patients with liver disease. Fingolimod, a sphingosine-1-phosphate (S1P) receptor modulator, suppresses vasodilation by reducing nitric oxide (NO) production. We investigated the role of S1P in patients with HPS and the role of fingolimod as a therapeutic option in an experimental model of HPS.

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