Total hip arthroplasty in different types of advanced tubercular hip arthritis: is it justified.

PURPOSE: Total hip arthroplasty (THA) provides a good treatment option for the patients in late arthritis stage. We present our experience of THA in various spectrums of disease. METHODS: Retrospective study including 23 advanced tubercular hip arthritis patients over a period of 13 years. The patients with active discharging sinus were excluded from the study. The patients were divided into three groups: group 1 (healed TB), group 2 (active TB), and group 3 (intraoperative surprise). The preoperative and postoperative antitubercular treatment (ATT) was administered to all the patients as per the protocol for various duration. All patients underwent THA (cementless or hybrid) after investigations including MRI. The patients were followed up with clinic-radiological and laboratory investigations. RESULTS: The mean age of the patients was 58.2 years with 16 males and seven females. There were 14 healed TB hips, eight active TB hips, and one intraoperative TB hip patient. Preoperative ATT duration in group 1 varied from one to two weeks and in group 2 patient's average was 9.6 weeks (range: 6-12weeks). Postoperatively, ATT was given for a minimum of ten months extending to 16 months. Cementless THA was performed in 17 patients and hybrid THA (cemented stem) in six patients. Only one patient had aseptic loosening of the stem and revision arthroplasty was done. CONCLUSION: THA is a viable option and provides mobile, stable hip in tubercular hip arthritis even in active TB hip patients. ATT is important in the management and prevent the reactivation of the disease.

Self-Identification of Mental Health Problems Among Young Adults Experiencing Homelessness.

Young adults experiencing homelessness (YAEH) have high rates of mental health problems but low rates of mental health service use. This study examined identification of mental health problems among YAEH in seven U.S. cities and its relationship to service use. YAEH that screened positive for depression, psychological distress, or Post Traumatic Stress (n = 892) were asked whether they felt they had a mental health problem. One-third identified as having a mental health problem (35%), with 22% endorsing not sure. Multinomial logistic regression models found that older age, cisgender female or gender-expansive (compared to cisgender male), and LGBQ sexual orientation, were positively associated with self-identification and Hispanic race/ethnicity (compared to White) was negatively associated. Self-identification of a mental health problem was positively associated with use of therapy, medications, and reporting unmet needs. Interventions should target understanding mental health, through psychoeducation that reduces stigma, or should reframe conversations around wellness, reducing the need to self-identify.

Use of Tourniquet During Knee Arthroplasty in Patients With Radiographic Arterial Calcifications.

BACKGROUND: Use of tourniquet during total knee arthroplasty (TKA) in patients with radiographic arterial calcifications is controversial. Intimal arterial calcifications are feared to be associated with ischemic complications such as delayed wound healing and arterial thrombosis, whereas medial calcifications stiffen the arterial wall, possibly leading to tourniquet failure and increased blood loss. METHODS: We conducted a prospective cohort study to determine the incidence of tourniquet failure (inflated up to 300 mm Hg), blood transfusions, wound healing, and ischemic complications in thighs with and without arterial calcifications on preoperative radiographs, in 2548 consecutive primary TKAs conducted in our unit over a 5-year period. Eighty-six thighs showed vascular calcifications: 58 medial and 28 intimal. RESULTS: Thighs with vascular calcifications had higher risk of tourniquet failure as compared to those without calcifications (P < .001), but with no significant increase in incidence of blood transfusions. All cases of tourniquet failure in the calcification group occurred in thighs with medial calcifications, whereas all cases of tourniquet failure in the control group occurred in obese patients. There was no difference in wound healing and ischemic complications in limbs with and without arterial calcifications. CONCLUSION: The presence of arterial calcifications on preoperative radiographs increases the risk of tourniquet failure at 300 mm Hg in patients undergoing TKA, with no significant increase in rate of blood transfusions, wound healing or ischemic complications.

Newer direct-acting antivirals for hepatitis C virus infection: Perspectives for India.

Approximately three per cent of the world's population (170-200 million people) is chronically infected with hepatitis C virus (HCV) and almost 500,000 people die each year (mostly in lower middle-income countries) from complications secondary to HCV infection. In India, HCV infection imposes a considerable burden of mortality, morbidity and healthcare costs. In the last two decades, the treatment of HCV has evolved from interferon (IFN)-based therapies with or without ribavirin (RBV) to pegylated-IFN (PEG-IFN) and RBV-based therapies that were better tolerated by patients. However, the introduction of oral drugs, which specifically target virus-specific proteins, has now revolutionized the treatment of chronic HCV. These agents are known as direct-acting antivirals (DAAs). These drugs have resulted in very high HCV cure rates even with reduced treatment duration and an excellent tolerability by the patients compared to PEG-IFN- and RBV-based therapies. In India, sofosbuvir (SOF), one of the most effective DAAs, has been made available at a compassionate price; thus only those DAA-based management strategies, which contain SOF are adopted in India. Here, we review different DAAs and their possible roles in different genotypes and stages of liver disease, stressing upon the role of SOF. An attempt has also been made to devise strategies using SOF for the most prevalent genotypes in our country (genotypes 3 and 1) and cirrhosis.

Kikuchi-Fujimoto Disease: A Rare Presentation with Localized Iliac Lymphadenitis.

Kikuchi-Fujimoto disease (KFD) is a benign, self-limiting disease characterized by histiocytic necrotising lymphadenitis. Though several viral agents or an autoimmune etiology has been proposed as causative, the exact cause remains unknown. It has a female predilection and most commonly seen among young Asian people. Patients usually present with a febrile illness and the presence of lymphadenopathy may provide a clue to diagnosis. The most common site of lymphadenopathy is cervical lymph nodes while intra-abdominal involvement is uncommon. Cases of KFD presenting with intra-abdominal lymphadenopathy have been reported to occur with equal frequency in both sexes. Abdominal tuberculosis, non-Hodgkin's lymphoma, and systemic lupus erythematosus are close differential diagnoses for this type of presentation. Treatment is mostly supportive as the disease usually resolves spontaneously; steroids are only required in severe cases. We report a 32-year-old male patient of intra-abdominal lymphadenitis that presented as fever of unknown origin (FUO) and diagnosed by excisional biopsy as a case of KFD.

A Curious Case of Omental Oxalate Crystals in a Patient With Struma Ovarii: Pointers to an Unusual Clinicopathological Scenario.

Percutaneous image-guided biopsies are becoming increasingly common in routine pathology practice, with the greater omentum emerging as a common target. We present herein an account of a middle-aged lady with a complex ovarian mass, omental thickening, and raised serum CA125; clinically suspected to have advanced ovarian malignancy. Fine needle aspiration cytology (FNAC) from the ovarian mass was inconclusive. Omental biopsy revealed only refractile, birefringent crystalline material with surrounding foreign body giant cell reaction; thus surprising the clinical team. Subsequent resection of the ovarian mass showed a teratoma composed exclusively of thyroid tissue, diagnosed as struma ovarii. The omental crystals, interpreted as calcium oxalate crystals, were possibly a consequence of colloid seeding during the ovarian mass FNAC.

Spectrum of endoscopic gastric subepithelial lesions encountered on EUS-FNA: A single center experience.

BACKGROUND AND OBJECTIVES: Endoscopic ultrasound guided fine needle aspiration (EUS-FNA) is a minimally invasive and reliable non-surgical technique for the diagnosis of gastrointestinal lesions. The present study aimed to evaluate the spectrum of lesions encountered in the gastric subepithelium on EUS-FNA at a tertiary care center. MATERIALS AND METHODS: Archival data of all patients undergoing EUS-FNA for gastric submucosal lesions over a period of 5 years was retrieved. Patient demographics, clinical presentation, and EUS findings were recorded along with the FNA results. RESULTS: A total of 78 EUS-FNA samples were analyzed. Material was adequate in 62 cases (79.48%) and inadequate in 16 cases (12.82%) patients due to scant cellularity. Of the adequate samples, 34 (43.5%) were reported as neoplastic while 20 (25.64%) were non-neoplastic, and 8 (10.25%) were reported as suspicious of a neoplasm. In the neoplastic category, the predominant diagnosis was of spindle cell neoplasm comprising gastrointestinal stromal tumor (13), benign neural tumor (03), leiomyoma (02), and spindle cell tumors (03). The latter could not be categorized further due to a lack of IHC material. The next common diagnosis was adenocarcinoma (06) followed by neuroendocrine tumor (02) and poorly differentiated carcinoma (01). The non-neoplastic lesions included non-specific pathology (15), inflammatory lesions (08), and one case each of tuberculosis, pancreatic rest, and Brunner gland hamartoma. Cell blocks for ancillary testing were available in 54 cases (65.23%) and follow-up was available in 42 cases (53.84%). CONCLUSION: EUS-FNA is a good modality for the diagnosis of gastric submucosal lesions with a high diagnostic yield.

Delhi Model: A New Tool for Predicting Response to Terlipressin in Hepatorenal Syndrome-Acute Kidney Injury.

Background and objectives: International club of ascites (ICA) has introduced revised criteria for hepatorenal syndrome-acute kidney injury (HRS-AKI) with an aim to improve the response rate to treatment. We lack prospective trials to assess its positive impact on the response rate and factors influencing response rate. Thus, we conducted this study with the primary aim of identifying independent factors that predict treatment response to terlipressin. Methods: We prospectively included patients of HRS-AKI as per the revised ICA criteria. All were treated with terlipressin and albumin according to the defined protocol and were followed for 90 days, death or liver transplantation. Baseline parameters, as well as delta serum creatinine (sCr) at day 4 (DCD4), were investigated as predictive factors influencing response to terlipressin (primary endpoint). Secondary endpoints were the overall response rate to terlipressin, response in various subgroups of acute-on-chronic liver failure (ACLF) patients, need for readmission, and 90 days survival. Results: The study included 114 patients with a median age of 52 years (83% males). 70 (61%) patients responded to terlipressin. Response rate among ACLF1, ACLF2, and ACLF3 were 62%, 48%, and 35%, respectively. On multivariate analysis, baseline creatinine (odds ratio [OR] 7.889, 95% confidence interval [CI] 3.335, 18.664), Child Turcotte Pugh (CTP) score (OR 1.470, 95% CI 1.026, 2.106), and the DCD4 (OR 0.048, 95% CI 0.015, 0.158) were independently predicting response. We also created a Delhi Model (DM) with an excellent predictive ability for response prediction at day 4 with an AUROC of 0.940 (95% CI 0.897, 0.982). Among responder group, 50% of patients required readmission within three months. The 90-days survival among responder and non-responder groups were 68.5% and 9% (P value < 0.01), respectively. Conclusions: Baseline creatinine, CTP score, and DCD4 independently predict response to terlipressin in HRS-AKI. The DM may guide terlipressin treatment in HRS-AKI but need further validation.

2023 Update of Indian National Association for Study of the Liver Consensus on Management of Intermediate and Advanced Hepatocellular Carcinoma: The Puri III Recommendations.

Hepatocellular carcinoma (HCC) presents significant treatment challenges despite considerable advancements in its management. The Indian National Association for the Study of the Liver (INASL) first published its guidelines to aid healthcare professionals in the diagnosis and treatment of HCC in 2014. These guidelines were subsequently updated in 2019. However, INASL has recognized the need to revise its guidelines in 2023 due to recent rapid advancements in the diagnosis and management of HCC, particularly for intermediate and advanced stages. The aim is to provide healthcare professionals with evidence-based recommendations tailored to the Indian context. To accomplish this, a task force was formed, and a two-day round table discussion was held in Puri, Odisha. During this event, experts in their respective fields deliberated and finalized consensus statements to develop these updated guidelines. The 2023 INASL guidelines offer a comprehensive framework for the diagnosis, staging, and management of intermediate and advanced HCC in India. They represent a significant step forward in standardizing clinical practices nationwide, with the primary objective of ensuring that patients with HCC receive the best possible care based on the latest evidence. The guidelines cover various topics related to intermediate and advanced HCC, including biomarkers of aggressive behavior, staging, treatment options, and follow-up care.

Ammonia is associated with liver-related complications and predicts mortality in acute-on-chronic liver failure patients.

The relationship between ammonia and liver-related complications (LRCs) in acute-on-chronic liver failure (ACLF) patients is not clearly established. This study aimed to evaluate the association between ammonia levels and LRCs in patients with ACLF. The study also evaluated the ability of ammonia in predicting mortality and progression of LRCs. The study prospectively recruited ACLF patients based on the APASL definition from the ACLF Research Consortium (AARC) from 2009 to 2019. LRCs were a composite endpoint of bacterial infection, overt hepatic encephalopathy (HE), and ascites. A total of 3871 cases were screened. Of these, 701 ACLF patients were enrolled. Patients with LRCs had significantly higher ammonia levels than those without. Ammonia was significantly higher in patients with overt HE and ascites, but not in those with bacterial infection. Multivariate analysis found that ammonia was associated with LRCs. Additionally, baseline arterial ammonia was an independent predictor of 30-day mortality, but it was not associated with the development of new LRCs within 30 days. In summary, baseline arterial ammonia levels are associated with 30-day mortality and LRCs, mainly overt HE and ascites in ACLF patients.

Asian Pacific Association for the Study of the Liver clinical practice guidelines on liver transplantation.

Liver transplantation is a highly complex and challenging field of clinical practice. Although it was originally developed in western countries, it has been further advanced in Asian countries through the use of living donor liver transplantation. This method of transplantation is the only available option in many countries in the Asia-Pacific region due to the lack of deceased organ donation. As a result of this clinical situation, there is a growing need for guidelines that are specific to the Asia-Pacific region. These guidelines provide comprehensive recommendations for evidence-based management throughout the entire process of liver transplantation, covering both deceased and living donor liver transplantation. In addition, the development of these guidelines has been a collaborative effort between medical professionals from various countries in the region. This has allowed for the inclusion of diverse perspectives and experiences, leading to a more comprehensive and effective set of guidelines.

Spleen stiffness in patients with cirrhosis in predicting esophageal varices.

OBJECTIVES: Screening for esophageal varices (EV) is recommended in patients with cirrhosis. Noninvasive tests had shown varying sensitivity (Se) and specificity (Sp) for predicting EV. Splenomegaly is a common finding in liver cirrhosis because of portal and splenic congestion. These changes can be quantified by transient elastography; hence, the aim of this study was to investigate the utility of spleen stiffness (SS) in evaluating EV in comparison with other noninvasive tests. METHODS: We measured SS and liver stiffness (LS) by using FibroScan in 200 consecutive cirrhotic patients who met the inclusion criteria. Patients were also assessed by hepatic venous pressure gradient (HVPG), upper gastrointestinal endoscopy, LS-spleen diameter to platelet ratio score (LSPS), and platelet count to spleen diameter ratio (PSR). RESULTS: Of 200 patients enrolled, 174 patients had valid LS and SS measurement, and 124 (71%) patients had EV (small, n=46 and large n=78). There was a significant difference in median LS (51.4 vs. 23.9 kPa, P=0.001), SS (54 vs. 32 kPa, P=0.001), LSPS (6.1 vs. 2.5, P=0.001), and PSR (812 vs. 1,165, P=0.001) between patients with EV and those without EV. LS ≥27.3 kPa had an Se of 91%, Sp of 72%, positive predictive value (PPV) of 89%, negative predictive value (NPV) of 76%, and a diagnostic accuracy of 86% in predicting EV. LSPS ≥3.09 had Se and Sp of 89% and 76%, respectively, and a PSR cutoff value of 909 or less had Se of 64%, Sp of 76%, and diagnostic accuracy of 68% in predicting EV. SS ≥40.8 kPa had Se (94%), Sp (76%), PPV (91%), NPV (84%), and diagnostic accuracy of 86% for predicting EV. SS was significantly higher in patients who had large varices (56 vs. 49 kPa, P=0.001) and variceal bleed (58 vs. 50.2 kPa, P=0.001). Combining LS+SS (27.3+40.8 kPa) had Se of 90%, Sp 90%, PPV 96%, NPV 79%, and a diagnostic accuracy of 90%. HVPG (n=52) showed significant correlation with SS (r=0.433, P=0.001), LSPS (r=0.335, P=0.01), and PSR (r=-0.270, P=0.05), but not with LS (r=0.178, P=0.20). CONCLUSIONS: Measurement of SS can be used for noninvasive assessment of EV and can differentiate large vs. small varices and nonbleeder vs. bleeder.

Unusual cause of massive upper gastrointestinal bleeding: a pancreatic arteriovenous malformation.

CONTEXT: Upper gastrointestinal bleeding is one of the most common emergencies in gastroenterology. The common causes of the upper gastrointestinal bleeding include peptic ulcer disease, gastric erosive mucosal disease and portal hypertension. Gastrointestinal arteriovenous malformation is a less common cause of gastrointestinal bleeding and these arteriovenous malformation are most commonly located in the large and small intestine. Pancreatic arteriovenous malformation is a rare condition in which there is tumor-like formation or vascular anomaly built up via an aberrant bypass anastomosis of the arterial and venous systems in the pancreas. Splenic artery is most commonly involved (42%), followed by gastroduodenal artery (22%) and small pancreatic arteries (25%). Clinically it may present as gastrointestinal hemorrhage which is occasionally fatal. Other presentations are abdominal pain, pancreatitis, duodenal ulcer, jaundice, and portal hypertension. CASE REPORT: We present a rare case of pancreatic arteriovenous malformation presenting as massive upper gastrointestinal bleeding. CONCLUSION: Since early surgery is a life saving treatment for such cases, hence, a high index of suspicion should be maintained especially when massive bleeding is detected from the medial wall of second part of duodenum.

Basic Understanding of Liver Transplant Immunology.

The liver is a specialized organ and plays an important role in our immune system. The liver constitutes parenchymal cells which are hepatocytes and cholangiocytes (60-80%) and non-parenchymal cells like liver sinusoidal endothelial cells (LSECs), hepatic satellite/Ito cells, Kupffer cells, neutrophils, mononuclear cells, T and B lymphocytes (conventional and non-conventional), natural killer cells, and natural killer T (NKT) cells. The liver mounts a rapid and strong immune response, under unfavorable conditions and acts as an immune tolerance to a variety of non-pathogenic antigens. This delicate and dynamic interaction between different kinds of immune cells in the liver maintains a balance between immune screening and immune tolerance. The liver allografts are privileged immunologically; however, allograft rejection is not uncommon and is classified as cell or antibody-mediated. Advancements in transplant immunology help in the prevention of allografts rejection by immune reactions of the host thus leading to better graft and host survival. Fewer patients may not require immunosuppression due to systemic donor-specific T-cell tolerance. The liver tolerance mechanism is poorly studied, and LSEC and unconventional lymphocytes play an important role that dampens T cell response either by inducing apoptosis of cells or inhibiting co-stimulatory pathways. Newer cell-based therapy based on Treg, dendritic cells, and mesenchymal stromal cells will probably change the future of immunosuppression. Various invasive and non-invasive biomarkers and artificial intelligence have also been investigated to predict graft survival, post-transplant complications, and immunotolerance in the future.