Guideline-Directed Medical Therapy in Patients with Chronic Kidney Disease Undergoing Peripheral Vascular Intervention.

INTRODUCTION: Guideline-directed medical therapy (GDMT) is imperative to improve cardiovascular and limb outcomes for patients with critical limb ischemia (CLI), especially amongst those at highest risk for poor outcomes, including those with comorbid chronic kidney disease (CKD). Our objective was to examine GDMT prescription rates and their variation across individual sites for patients with CLI undergoing peripheral vascular interventions (PVIs), by their comorbid CKD status. METHODS: Patients with CLI who underwent PVI (October 2016-April 2019) were included from the Vascular Quality Initiative (VQI) database. CKD was defined as GFR <60 mL/min/1.73 m2. GDMT included the composite use of antiplatelet therapy and a statin, as well as an angiotensin-converting enzyme inhibitor or angiotensin receptor blocker if hypertension was present. The use of GDMT before and after the index procedure was summarized in those with and without CKD. Adjusted median odds ratios (MORs) for site variability were calculated. RESULTS: The study included 28,652 patients, with a mean age of 69.4 ± 11.7 years, and 40.8% were females. A total of 47.5% had CKD. Patients with CKD versus those without CKD had lower prescription rates both before (31.7% vs. 38.9%) and after (36.5% vs. 48.8%) PVI (p < 0.0001). Significant site variability was observed in the delivery of GDMT in both the non-CKD and CKD groups before and after PVI (adjusted MORs: 1.31-1.41). DISCUSSION/CONCLUSION: In patients with CLI undergoing PVI, patients with comorbid CKD were less likely to receive GDMT. Significant variability of GDMT was observed across sites. These findings indicate that significant improvements must be made in the medical management of patients with CLI, particularly in patients at high risk for poor clinical outcomes.

Differentiating spontaneous echo contrast, sludge, and thrombus in the left atrial appendage: Can ultrasound enhancing agents help?

The accurate identification of thrombus in the left atrial appendage with transesophageal echocardiogram (TEE) in patients with atrial fibrillation (AF) before cardioversion is essential. Most of these patients have some grade of spontaneous echo contrast (SEC). Severe SEC is often called "sludge," and its prognosis and treatment are still controversial. Current guidelines suggest the use of ultrasound enhancing agents (UEAs) when significant SEC is present. However, little is known about the utility of the UEAs in the differentiation between sludge and less severe SEC.

Dangerous dog licks! - A rare case of epidural abscess secondary to Capnocytophaga.

We present a rare case of a 71-year-old female. She has a history of irritable bowel syndrome that is diet controlled. However she presented to the emergency department (ED) with a history of diarrhea, weakness, chills and right lower back pain for two days. She was found to have epidural abscesses secondary to Capnocytophaga bacteremia. To date, there has been only one case report of a sacral abscess secondary to Capnocytophaga sp. Capnocytophaga is a genus of facultative anaerobic gram-negative bacilli that are frequent commensals in the oral cavity of cats and dogs. It can be transmitted by bites, scratches or contact of saliva with exposed mucosa or skin. It is a rare but potentially fatal infection, that is known to cause severe septicemia and shock, especially in patients with splenectomy. Our case is a unique presentation of sepsis and epidural abscesses in an immunocompetent host due to Capnocytophaga. Given the slow growing and fastidious nature of the organism, it requires a high suspicion in a patient presenting with slow growing gram-negative rod bacteremia and diligent following of cultures and sensitivities to ensure correct antibiotic coverage.