Co-relation of Portal Vein Tumour Thrombus Response With Survival Function Following Robotic Radiosurgery in Vascular Invasive Hepatocellular Carcinoma.

Background/aims: The aim of this study was to prospectively evaluate stereotactic body radiotherapy (SBRT) with robotic radiosurgery in hepatocellular carcinoma patients with macrovascular invasion (HCC-PVT). Materials and methods: Patients with inoperable HCC-PVT, good performance score (PS0-1) and preserved liver function [up to Child-Pugh (CP) B7] were accrued after ethical and scientific committee approval [Clinical trial registry-India (CTRI): 2022/01/050234] for treatment on robotic radiosurgery (M6) and planned with Multiplan (iDMS V2.0). Triple-phase contrast computed tomography (CT) scan was performed for contouring, and gross tumour volume (GTV) included contrast-enhancing mass within main portal vein and adjacent parenchymal disease. Dose prescription was as per risk stratification protocol (22-50 Gy in 5 fractions) while achieving the constraints of mean liver dose <15 Gy, 800 cc liver <8 Gy and the duodenum max of <24 Gy). Response assessment was done at 2 months' follow-up for recanalization. Patient- and treatment-related factors were evaluated for influence in survival function. Results: Between Jan 2017 and May 2022, 318 consecutive HCC with PVT patients were screened and 219 patients were accrued [male 92%, CP score: 5-7 90%, mean age: 63 years (38-85 yrs), Cancer of the Liver Italian Program <3: 84 (40%), 3-6117 (56%), infective aetiology 9.5%, performance status (PS): 0-37%; 1-56%]. Among 209 consecutive patients accrued for SBRT treatment (10 patients were excluded after accrual due to ascites and decompensation), 139 were evaluable for response assessment (>2 mo follow-up). At mean follow-up of 12.21 months (standard deviation: 10.66), 88 (63%) patients expired and 51 (36%) were alive. Eighty-two (59%) patients had recanalization of PVT (response), 57 (41%) patients did not recanalize and 28 (17%) had progressive/metastatic disease prior to response evaluation (<2 months). Mean overall survival (OS) in responders and non-responders were 18.4 [standard error (SE): 2.52] and 9.34 month (SE 0.81), respectively (P < 0.001). Mean survival in patients with PS0, PS1 and PS2 were 17, 11.7 and 9.7 months (P = 0.019), respectively. OS in partial recanalization, bland thrombus and complete recanalization was 12.4, 14.1 and 30.3 months, respectively (P-0.002). Adjuvant sorafenib, Barcelona Clinic Liver Classification stage, gender, age and RT dose did not influence response to treatment. Recanalization rate was higher in good PS patients (P-0.019). OS in patients with response to treatment, in those with no response to treatment, in those who are fit but not accrued and in those who are not suitable were 18.4, 9.34, 5.9 and 2.6 months, respectively (P-<0.001). Thirty-six of 139 patients (24%) had radiation-induced liver disease (RILD) [10 (7.2%) had classic RILD & 26 (19%) had non-classic RILD]. Derangement in CP score (CP score change) by more than 2 was seen in 30 (24%) within 2-month period after robotic radiosurgery. Eighteen (13%) had unplanned admissions, two patients required embolization due to fiducial-related bleeding and 20 (14%) had ascites, of which 9 (6%) patients required abdominocentesis. Conclusion: PVT response or recanalization after SBRT is a statistically significant prognostic factor for survival function in HCC-PVT.

Multi-center prospective survey of hepatocellular carcinoma in Kerala: More than 1,200 cases.

BACKGROUND: Hepatocellular carcinoma (HCC) is considered uncommon in India. The aim of this study was to document the demographic characteristics and clinical aspects of HCC in Kerala, India. METHODS: A survey of HCC in Kerala was performed. All gastroenterologists in the region were invited. From May 2018 to April 2020, data was collected in a standardized questionnaire. RESULTS: Forty-three doctors from 15 centers contributed the data. Total 1217 patients were analyzed. This is the largest state-wide survey of HCC in India. HCC was more common in men (90%) than in women (p < 0.01). The etiology of liver disease was hepatitis B virus (7%), hepatitis C virus (4%) and alcohol (40%). Diabetes mellitus was present in 64%, hypercholesterolemia in 17% and hypertension in 38%. Obesity was present in 33% and 15% were overweight. Non-alcoholic fatty liver disease (NAFLD) with or without metabolic syndrome was present in 44%. Serum alpha-fetoprotein was > 400 ng/mL in 24%, total tumor diameter was > 5 cm in 59%, portal vein invasion was seen in 35% and distant metastasis was seen in 15%. Specific therapy was given to 52%. Treatments given included liver transplantation (n = 24), liver resection (n = 39) and transarterial chemoembolization (TACE, n = 184). Although the study was not designed to compare survival, patients who had liver transplantation had longer survival (median 69 months) compared to matched patients given only TACE (median 18 months) (p = 0.03). CONCLUSION: HCC is common in Kerala, India. NAFLD has a predominant association with HCC in Kerala. Most of the patients report late when curative treatment is not possible.

Indian consensus statements on irritable bowel syndrome in adults: A guideline by the Indian Neurogastroenterology and Motility Association and jointly supported by the Indian Society of Gastroenterology.

The Indian Neurogastroenterology and Motility Association (INMA), earlier named the Indian Motility and Functional Diseases Association developed this evidence-based practice guidelines for the management of irritable bowel syndrome (IBS). A modified Delphi process was used to develop this consensus containing 28 statements, which were concerning diagnostic criteria, epidemiology, etiopathogenesis and comorbidities, investigations, lifestyle modifications and treatments. Owing to the Coronavirus disease-19 (COVID-19) pandemic, lockdowns and mobility restrictions, web-based meetings and electronic voting were the major tools used to develop this consensus. A statement was regarded as accepted when the sum of "completely accepted" and "accepted with minor reservation" voted responses were 80% or higher. Finally, the consensus was achieved on all 28 statements. The consensus team members are of the view that this work may find use in teaching, patient care, and research on IBS in India and other nations.

Improving Diagnosis of Hepatitis C Virus Infection Using Hepatitis C Core Antigen Testing in a Resource-Poor Setting.

INTRODUCTION: We compared the hepatitis C virus (HCV) core antigen test with the HCV RNA assay to confirm anti-HCV results to determine whether the HCV core antigen test could be used as an alternative confirmatory test to the HCV RNA test. METHODS: Sera from 156 patients were analyzed for anti-HCV and HCV core antigen using a chemiluminescent microparticle immunoassay (Architect i2000SR) and for HCV RNA using the artus HCV RG RT-PCR Kit (QIAGEN) in a Rotor-Gene Q instrument. RESULTS: The diagnostic sensitivity, specificity, and positive and negative predictive values of the HCV core antigen assay compared to the HCV RNA test were 77.35%, 100%, 100%, and 89.38%, respectively. HCV core antigen levels showed a good correlation with those from HCV RNA quantification (r =0.872). However, 13 samples with a viral load of less than 4000 IU/mL were negative in the HCV core antigen assay. All gray-zone reactive samples were also RNA positive and were positive on repeat testing. CONCLUSIONS: The Architect HCV core antigen assay is highly specific and has an excellent positive predictive value. At the present level of sensitivity (77%), the study is still relevant in a low-income setting in which most of the HCV-positive patients would go undiagnosed, since HCV RNA testing is not available and/or not affordable. HCV core antigen testing can also help determine the true burden of infection in a population, considering the fact that almost 50% of the anti-HCV positive cases are negative for HCV RNA.

Improving Diagnosis of Hepatitis C Virus Infection Using Hepatitis C Core Antigen Testing in a Resource-Poor Setting

Abstract INTRODUCTION: We compared the hepatitis C virus (HCV) core antigen test with the HCV RNA assay to confirm anti-HCV results to determine whether the HCV core antigen test could be used as an alternative confirmatory test to the HCV RNA test. METHODS: Sera from 156 patients were analyzed for anti-HCV and HCV core antigen using a chemiluminescent microparticle immunoassay (Architect i2000SR) and for HCV RNA using the artus HCV RG RT-PCR Kit (QIAGEN) in a Rotor-Gene Q instrument. RESULTS: The diagnostic sensitivity, specificity, and positive and negative predictive values of the HCV core antigen assay compared to the HCV RNA test were 77.35%, 100%, 100%, and 89.38%, respectively. HCV core antigen levels showed a good correlation with those from HCV RNA quantification (r =0.872). However, 13 samples with a viral load of less than 4000 IU/mL were negative in the HCV core antigen assay. All gray-zone reactive samples were also RNA positive and were positive on repeat testing. CONCLUSIONS: The Architect HCV core antigen assay is highly specific and has an excellent positive predictive value. At the present level of sensitivity (77%), the study is still relevant in a low-income setting in which most of the HCV-positive patients would go undiagnosed, since HCV RNA testing is not available and/or not affordable. HCV core antigen testing can also help determine the true burden of infection in a population, considering the fact that almost 50% of the anti-HCV positive cases are negative for HCV RNA.

Indian consensus on chronic constipation in adults: A joint position statement of the Indian Motility and Functional Diseases Association and the Indian Society of Gastroenterology.

The Indian Motility and Functional Diseases Association and the Indian Society of Gastroenterology developed this evidence-based practice guideline for management of chronic constipation. A modified Delphi process was used to develop this consensus containing 29 statements, which were generated by electronic voting iteration as well as face to face meeting and review of the supporting literature primarily from India. These statements include 9 on epidemiology, clinical presentation, and diagnostic criteria; 8 on pathophysiology; and the remaining 12 on investigations and treatment. When the proportion of those who voted either to accept completely or with minor reservation was 80% or higher, the statement was regarded as accepted. The members of the consensus team believe that this would be useful for teaching, clinical practice, and research on chronic constipation in India and in other countries with similar spectrum of the disorders.

Muscle cell membrane damage by very low serum sodium.

A 63-year-old male was admitted with complaints of upper gastrointestinal symptoms with fatigue and myalgia. Investigations revealed severe hyponatremia with elevated creatine phosphokinase levels. Following further workup, it was diagnosed as a case of hyponatremia induced rhabdomyolysis. Because of prompt correction of hyponatremia, his renal function was preserved and myoglobinuria induced renal failure was avoided. The importance of early recognition of this potentially dangerous condition is emphasized.

Colorectal cancer distribution in 220 Indian patients undergoing colonoscopy.

AIM: Colorectal cancer is one of the major cancers in the developed world. The incidence of colorectal cancer is low in India. The aim of the present study was to describe the anatomical distribution and age at diagnosis of colorectal cancer in India. METHODS: Retrospective descriptive analysis of anatomical distribution, age at diagnosis and demography of 220 cases (149 [67.7%] men) of adenocarcinoma of the colon or rectum diagnosed at colonoscopy over a period of five years. RESULTS: The mean age at diagnosis was 58.4 years (SD 13.3; range 23-85 years). Twenty-eight (12.7%) cases were below the age of 40 years. The majority (31.8%) cases were aged between 61-70 years. Most of the tumors (n=163, 74%) were located distal to the splenic flexure. Multivariate logistic regression analysis showed that bleeding per rectum (OR 2.8; 95% CI 1.2-6.2) was associated with distal cancer, and palpable mass (OR 3.9; 95% CI 1.7-8.6) was associated with proximal cancer. CONCLUSIONS: Almost one-third of the colorectal cancers in this series occurred in the seventh decade and were located distal to the splenic flexure.

Fulminant hepatic failure for herpes simplex virus.

Although exceedingly rare, fulminant hepatic failure in immunocompetent patients can develop with primary or recurrent infection due to herpes simplex virus. The diagnosis is frequently obscured by the absence of mucocutaneous involvement. Elevated transaminases with leucopenia and a relatively low bilirubin level may provide clues to the diagnosis. Here a female patient, 43 years, presented with the complaints of increasing jaundice, anorexia, nausea, vomiting for one week duration. She had hepatomegaly. Investigations revealed markedly raised transaminases and coagulopathy. Herpes simplex virus IGM (by ELISA) was positive. The immunocompetent woman was treated with acyclovir but the result was fatal.

Acute myeloid leukemia presenting as obstructive jaundice.

We report a 32-year-old man with acute myeloid leukemia presenting as obstructive jaundice. Imaging revealed dilated common bile duct with abrupt narrowing at the lower end, distended gall bladder, and dilated intrahepatic biliary radicles. In addition he had a mass lesion in the urinary bladder. On evaluation he was found to have the eosinophilic variant of M4 subtype acute myeloid leukemia. He expired before chemotherapy could be instituted.

Infiltrating Strongyloides stercoralis presenting as duodenal obstruction.

Small intestinal obstruction due to Strongyloides stercoralis is rare and has not been reported in an immunocompetent patient. We describe a 70-year-old immunocompetent man presenting with duodenal obstruction secondary to severe S. stercoralis infestation, as documented on duodenal biopsy. He was treated with ivermectin, with which he recovered remarkably.

Skeletal infections in cirrhotics.

There are few reports of skeletal infections in patients with cirrhosis. We present two such cases, both with alcoholic liver disease, seen over a period of one year. The first, a 46-year-old man, presented as pyrexia of unknown origin, and was found to have pyogenic discitis; he responded to antibiotic and surgery. The second, a 42-year-old man, presented with chest wall abscess and was diagnosed to have tubercular osteomyelitis; he expired despite treatment with non-hepatotoxic anti-tubercular drugs.

Factors determining successful outcome following pneumatic balloon dilation in achalasia cardia.

BACKGROUND: Pneumatic balloon dilation is a popular method of treating patients with achalasia cardia. It may be useful to know the factors that predict response to this treatment. AIM: To determine predictors of outcome following pneumatic balloon dilation in patients with achalasia cardia. METHODS: Records of 62 patients who had undergone pneumatic dilation using Rigiflex balloon dilators (Boston Scientific, Boston, MA, USA) were reviewed. Follow-up data were available for 52 patients. Data from patients with and without improvement in symptoms were compared. RESULTS: Of the 52 patients (age mean 44 [range 11-68] years; 27 male; median symptom duration 20 [4-90] months], 42 (81%) patients had response in symptoms after balloon dilatation. On univariate analysis, the responders more often had age> 40 years (26/42 [62%] versus 1/10 [10%], p=0.003), and less often had lower esophageal sphincter pressure> 50 mmHg (8/10 [80%] versus 10/42 [24%], p=0.0007) and mid-esophageal body hypocontraction (7/10 [70%] versus 12/24 [29%] p=0.01) than the non-responders. On multivariate analysis only age