A Case of Ventricular Fibrillation in a Frail Patient with Chronic Obstructive Pulmonary Disease, Obstructive Sleep Apnea Syndrome, and Electrolytic Disorder.

Chronic obstructive pulmonary disease (COPD) is associated with an increased cardiovascular risk, although the pathophysiological mechanisms responsible for this interdependence are not completely known. For instance, the increased sympathetic activity may be implied. The severity of COPD correlates with various arrhythmic manifestations such as atrial fibrillation, atrial flutter, and either sustained or nonsustained ventricular tachycardia.