Clinical characteristics of patients with cardiac sarcoidosis who were hospitalized for heart failure

Abstract

Abstract Background Cardiac sarcoidosis (CS) often leads cardiac dysfunction and exacerbates heart failure. However, there are limited data regarding CS patients who were hospitalized for acute heart failure (AHF). Purpose We aimed to compare the patient characteristics and outcomes between patients with CS who were hospitalized for AHF (CS-AHF) and patients with AHF of other etiology. Methods A total of 4,556 hospitalized patients with CS were identified from the Japanese Diagnosis Procedure Combination database from 2012 to 2020. Among them, we analyzed 254 patients who were hospitalized due to AHF. Patient characteristics, prior medical history, medical therapy for heart failure, intensive care management during hospitalization, in-hospital outcomes and rehospitalization within one year after the index hospitalization were compared with general 4,056 hospitalized AHF patients who were enrolled in the Kyoto Congestive Heart Failure registry. Results Patients with CS-AHF were younger (71 [63-78] vs 80 [72-86]) and more women (69% vs 45%; p < 0.001) than general AHF patients. In addition, CS-AHF were associated with lower prevalence of hypertension, diabetes and dyslipidemia (46% vs 72%, p < 0.001; 28% vs 37%, p = 0.005; and 21% vs 38%, p < 0.001), and lower prescription of angiotensin converting enzyme inhibitors or angiotensin II receptor blocker (28 % vs 46%; p < 0.001) while prescription of beta-blockers were similar between the groups. The length of hospital stay was significantly longer in CS-AHF (23 [14-39] days vs 16 [11-25] days), more patients were treated by intensive respiratory care (32% vs 25%; p = 0.05) and cardiac resynchronization therapy defibrillator (CRTD) implantation (6% vs. 0.5%; p < 0.001) Although in-hospital mortality was similar between the groups, the rate of rehospitalization within one year was higher in CS-AHF (51% vs 39%; p = 0.001). Conclusions Patients with CS-AHF were younger, more women and had lower cardiovascular risk factors than those with AHF in general. CS-AHF were associated with longer hospital stay, higher rate of CRTD implantation and higher rehospitalization rates. More attention might be needed for this distinct group of patients.