Characteristic Mechanisms and Outcome of Cardiopulmonary Arrest in Congestive Heart Failure Patients

Recent studies suggest the mechanism of sudden death in congestive heart failure (CHF) patients is less frequently VT/VF than previously believed. In order to further understand the characteristics and mechanisms of death in CHF patients, we evaluated 146 patients who underwent cardiopulmonary resuscitation during hospitalization for congestive heart failure, ischemic heart disease, and noncardiac causes. Clinical characteristics and outcomes are described below:CHF/CardiacnonCHF/CardiacnoncardiacN302690Age63 (49.71)67 (60.72)63 (29.71)Sex (% male)375860Initial Rhythm N(%)VT/VF7 (25)11 (44)24 (27)Asystole6 (21.4)6 (24)33 (37.5)Bradycardia5 (17.9)2 (8)6 (6.8)EMD6 (21.4)1 (4)13 (148)Other4 (14.3)5 (20)12 (136)ROSC21 (70)13 (50)51 (56.7)Survival to D/C1 (3.3)4 (15.4)2 (2.2)Patients with nonCHF/Cardiac disease had a higher ROSC than patients with CHF and noncardiac diseases (p=0.016). In summary, patients with CHF often experience cardiopulmonary arrest with bradycardic or EMD arrests. Although patients with CHF are resuscitated with a high degree of success their in-hospital survival was low. Furthermore, the high rate of bradycardic and EMD arrests may explain the low in-hospital survival rates