Diuretic resistance and the role of albumin in congestive heart failure

Diuresis with loop diuretics is the mainstay treatment for volume optimization in patients with congestive heart failure, in which perfusion and volume expansion play a crucial role. There are robust guidelines with extensive evidence for the management of heart failure; however, clear guidance is needed for patients who do not respond to standard diuretic treatment. Diuretic resistance (DR) can be defined as an insufficient quantity of natriuresis with proper diuretic therapy. A combination of diuretic regimens is used to overcome DR and, more recently, SGLT2 inhibitors have been shown to improve diuresis. Despite DR being relatively common, it is challenging to treat and there remains a notable lack of substantial data guiding its management. Moreover, DR has been linked with poor prognosis. This review aims to expose the multiple approaches for treatment of patients with DR and the importance of intravascular volume expansion in the response to therapy.

Crochetage, the Forgotten Electrocardiographic Sign

Acquired complete heart block is a rare but severe arrhythmia caused by various factors such as infections, medications, and autoimmune conditions. Atrial septal defect (ASD) is a common congenital heart defect, with larger ASDs possibly causing symptoms such as fatigue, shortness of breath, and frequent respiratory infections. In some cases, high-grade atrioventricular block with ASD can occur; however, the exact incidence is not well established. We report a rare case of a 15-year-old male presenting with acute dizziness. Initial electrocardiogram (EKG) showed a complete heart block with a Crochetage sign. Patent foramen ovale (PFO) was confirmed by transthoracic and transesophageal echocardiograms. Closure of PFO and permanent pacemaker resulted in complete resolutions of symptoms and disappearance of Crochetage sign.