Publications by authors named "Ram Subramanian"

Background: Patients with atopic dermatitis (AD) often experience a multitude of interrelated symptoms and impacts linked to the cardinal symptom of itch. Individual patient-reported outcome measures do not on their own reflect the complex physical and psychosocial burden experienced by patients with AD. This manuscript describes a qualitative in-trial interview substudy embedded in a phase 3 trial of nemolizumab in adults and adolescents with moderate-to-severe AD (ClinicalTrials.

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Objectives: To systematically review the safety and efficacy of nonbiological (NBAL) or biological artificial liver support systems (BAL) and whole-organ extracorporeal liver perfusion (W-ECLP) systems, in adults with acute liver failure (ALF) and acute-on-chronic liver failure (ACLF).

Data Sources: Eligible NBAL/BAL studies from PubMed/Embase searches were randomized controlled trials (RCTs) in adult patients with ALF/ACLF, greater than or equal to ten patients per group, reporting outcomes related to survival, adverse events, transplantation rate, and hepatic encephalopathy, and published in English from January 2000 to July 2023. Separately, we searched for studies evaluating W-ECLP in adult patients with ALF or ACLF published between January1990 and July 2023.

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Article Synopsis
  • - Takotsubo cardiomyopathy (TCM) is a temporary heart condition triggered by stress, occurring mainly in patients without serious coronary artery disease, and was studied in patients who experienced it after liver transplantation (LT).
  • - A multicenter study included 55 adult patients who developed TCM following LT, mainly affecting older women, with common causes being alcohol-related liver disease; TCM diagnosis often occurred just days after surgery, leading to a significant drop in heart function.
  • - Most patients were treated successfully using medications like diuretics, with a high rate of recovery in heart function observed over time; those who regained heart function had better survival rates compared to those who did not recover.
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Acute liver failure (ALF) is an acute liver dysfunction with coagulopathy and HE in a patient with no known liver disease. As ALF is rare and large clinical trials are lacking, the level of evidence regarding its management is low-moderate, favoring heterogeneous clinical practice. In this international multicenter survey study, we aimed to investigate the current practice and management of patients with ALF.

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The treatment of choice for hepatorenal syndrome-acute kidney injury (HRS-AKI) is vasoconstrictor therapy in combination with albumin, preferably norepinephrine or terlipressin as recommended by recent guidelines. In the absence of larger head-to-head trials comparing the efficacy of terlipressin and norepinephrine, meta-analysis of smaller studies can provide insights needed to understand the comparative effects of these medications. Additionally, recent changes in the HRS diagnosis and treatment guidelines underscore the need for newer analyses comparing terlipressin and norepinephrine.

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Background: Bile cast nephropathy (BCN) is an underdiagnosed renal complication associated with severe hyperbilirubinemia and is seen in patients with liver failure who have cholestatic complications. BCN-induced acute kidney injury (AKI) can require hemodialysis (HD), and the molecular adsorbent recirculating system (MARS) is a potentially useful therapeutic option.

Case Summary: A 57-year-old male presented with jaundice persisting for 1 month, with laboratory test results indicative of hyperbilirubinemia and AKI.

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Cirrhosis and chronic liver disease cause a myriad of systemic health problems mostly caused by the presence of portal hypertension. Esophageal varices are one result of portal hypertension. They can rupture and bleed, which can be catastrophic in already coagulopathic liver failure patients.

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Article Synopsis
  • The guideline aims to create evidence-based recommendations for ICU clinicians treating adults with acute liver failure (ALF) or acute on chronic liver failure (ACLF).
  • A panel of 27 experts conducted systematic reviews and categorized their findings into Population, Intervention, Comparison, and Outcomes (PICO) questions to guide clinical practice.
  • The resulting 28 recommendations include five strong recommendations and 21 conditional ones, but many are based on low-quality evidence, highlighting areas that need further research.
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Unlabelled: This study assessed the potential advantages of treating hepatorenal syndrome-acute kidney injury (HRS-AKI) with terlipressin versus placebo in the ICU setting.

Design: Patients were randomly assigned in a 2:1 ratio to receive terlipressin or placebo for up to 14 days.

Setting: A retrospective analysis of data from the phase III CONFIRM study.

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Purpose Of Review: Liver transplantation remains the only definitive treatment for advanced liver disease and liver failure. Current allocation schemes utilized for liver transplantation mandate a 'sickest first' approach, thus most liver transplants occur in patients with severe systemic illness. For intensive care providers who care for liver transplant recipients, a foundation of knowledge of technical considerations of orthotopic liver transplantation, basic management considerations, and common complications is essential.

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and infections have been described as a cause of hyperammonemia syndrome leading to devastating neurological injury in the post-transplant period, most commonly in lung transplant recipients. The occurrence of significant hyperammonemia caused by other urease-producing organisms remains unclear. We describe a case of disseminated cryptococcosis presenting with profound hyperammonemia in a 55-year-old orthotopic liver transplant recipient.

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Cirrhosis is complicated by a high rate of nosocomial infections (NIs), which result in poor outcomes and are challenging to predict using clinical variables alone. Our aim was to determine predictors of NI using admission serum metabolomics and gut microbiota in inpatients with cirrhosis. In this multicenter inpatient cirrhosis study, serum was collected on admission for liquid chromatography-mass spectrometry metabolomics, and a subset provided stool for 16SrRNA analysis.

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Importance: Acute gastrointestinal variceal hemorrhage is a major cause of morbidity and mortality in cirrhotic liver disease. Approximately one-third of cirrhotic patients will have variceal hemorrhage, and each bleeding episode is associated with up to 20% mortality. Balloon tamponade devices are used to achieve temporary hemostasis of bleeding esophagogastric varices and as a bridge to definitive therapy.

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Unlabelled: Drug-induced liver injury (DILI) is a significant cause of acute liver injury and can present as cholestatic injury with or without associated hepatitis. Although most patients with DILI recover with supportive care, some can develop severe refractory cholestasis that impairs recovery of hepatic function, with subsequent progression to acute or chronic liver failure. Current pharmacotherapy and extracorporeal therapies such as hemodialysis have limited benefit.

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Hepatorenal syndrome-acute kidney injury (HRS-AKI) is a serious complication of severe liver disease with a clinically poor prognosis. Supportive care using vasoconstrictors and intravenous albumin are the current mainstays of therapy. Terlipressin is an efficacious vasoconstrictor that has been used for 2 decades as the first-line treatment for HRS-AKI in Europe and has demonstrated greater efficacy in improving renal function compared to placebo and other vasoconstrictors.

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Article Synopsis
  • The study focused on identifying metabolomic biomarkers in patients with cirrhosis to predict the development of advanced hepatic encephalopathy (HE), a serious condition related to liver failure.
  • High levels of certain metabolites and low levels of others, particularly thyroxine, were found to be significant predictors of brain failure.
  • Validation in a separate patient cohort confirmed that low thyroxine levels could predict advanced HE's development independently of other clinical factors.
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A controlled pilot study was performed to evaluate implementation of a medication identification device intended to reduce errors in nursing homes. Naïve observation was used for data collection of medication errors on an intervention unit using the device and a control unit, along with field notes describing observation details. Ten staff were observed administering medications to 70 residents over the study time-frame.

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Background: The prognosis of acute kidney disease (AKD), defined as a glomerular filtration rate of <60 ml/min/1.73 m or a rise in serum creatinine (sCr) of <50% for <3 months, is not clearly known.

Aim: To study the prevalence, predictive factors and clinical outcomes in hospitalized cirrhotic patients with AKD.

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Objectives: The molecular adsorbent recirculating system removes water-soluble and albumin-bound toxins and may be beneficial for acute liver failure patients. We compared the rates of 21-day transplant-free survival in acute liver failure patients receiving molecular adsorbent recirculating system therapy and patients receiving standard medical therapy.

Design: Propensity score-matched retrospective cohort analysis.

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Background And Aims: Acute kidney injury (AKI) has a poor prognosis in cirrhosis. Given the variability of creatinine, the prediction of AKI and dialysis by other markers is needed. The aim of this study is to determine the role of serum and urine metabolomics in the prediction of AKI and dialysis in an inpatient cirrhosis cohort.

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