2 Clinical Trials for Various Conditions
* As studied previously, lung congestion is very prevalent however usually asymptomatic in dialysis patients. Fluid overload is associated with hospitalizations, worse cardiovascular outcomes and mortality in PD patients. * The clinical exam is the only tool used currently to monitor volume status of PD patients, and has been found to have poor sensitivity and specificity for lung congestion compared to lung ultrasound. In current practice, patients are seen and examined monthly at their home dialysis units by the nurses. The nephrologist separately examines the patient monthly, possibly days to weeks after the nurse visit, and potentially only quarterly with the use of telehealth visits. * Lung ultrasound is a relatively simple and cheap tool to assess for lung congestion, with little inter-operator variability and good reproducibility. * There are limited studies of lung ultrasound in peritoneal dialysis, and none in the United States. Lung ultrasound may be useful as an objective measure of lung congestion in patients without signs or symptoms of fluid overload. Aims of this study * This study aims to determine the prevalence of subclinical fluid overload in peritoneal dialysis patients. * The investigators aim to determine the added benefit of lung ultrasound to standard clinical practice of fluid management in PD patients. * The investigators aim to assess the association of patient characteristics with lung congestion. * The investigators also aim to assess the agreement between nurse physical exam and lung ultrasound for fluid overload.
The primary objective of this study is to learn whether a morning dose of extended-release torsemide enhances renal sodium excretion after lunch (4-8 hours after dosing) compared to immediate-release torsemide. This is a randomized, double-blind, crossover study in patients with heart failure who are on a stable dose of a loop diuretic. During the study period, participants' current loop diuretics will be replaced with an equivalent dose of either immediate-release or extended-release torsemide. Following a one-week stabilization period on the assigned torsemide formulation, patients will report to the clinical site for an assessment visit. On the study day, patients will take a single dose of the same torsemide formulation they have been on for the past week, administered after breakfast. Urine samples be collected are: * 0-4 hours post-dosing (pre-lunch period) * 4-8 hours post-dosing (post-lunch period) * 8-24 hours post-dosing (24 hours period) The primary endpoint will be urinary sodium excretion (4-8 hours after dosing). This will be compared between the extended-release arm and the immediate-release arm to assess the efficacy of prolonged diuretic action. In addition, urinary potassium and creatinine excretion and creatinine clearance will be measured in all urine samples as the safety endpoints.