ABSTRACT
This case report demonstrates that the sinus node can recover relatively quickly even after being suppressed by atrial flutter for 25 years, and that a permanent pacemaker may not always be necessary in all patients with sinus arrest after a successful atrial flutter ablation.
Subject(s)
Atrial Flutter/surgery , Catheter Ablation , Aged , Atrial Flutter/physiopathology , Electrocardiography , Humans , Male , Sinoatrial Node/physiopathologyABSTRACT
This case illustrates the difficulties sometimes encountered by clinicians when using algorithms in diagnosing a wide-complex tachycardia based on a 12-lead EKG.
Subject(s)
Electrocardiography , Tachycardia, Supraventricular/diagnosis , Tachycardia, Ventricular/diagnosis , Cardiac Pacing, Artificial , Humans , Male , Middle Aged , Tachycardia, Atrioventricular Nodal Reentry/diagnosisABSTRACT
A patient with peripartum cardiomyopathy developed a nearly incessant nonsustained VT. Guided by a noncontact mapping system, the tachycardia was mapped to the mid-septum of the right ventricle and ablated. Despite transient success, the tachycardia recurred and the patient subsequently died of multiorgan failure. Histopathological correlation of the ablation site revealed a nontransmural lesion that may have contributed to the failure of the ablation.
Subject(s)
Cardiomyopathy, Dilated/pathology , Catheter Ablation , Puerperal Disorders/pathology , Tachycardia, Ventricular/diagnosis , Tachycardia, Ventricular/surgery , Adult , Cardiomyopathy, Dilated/physiopathology , Female , Humans , Myocardium/pathology , Pregnancy , Puerperal Disorders/physiopathologySubject(s)
Angiotensin II/biosynthesis , Angiotensin-Converting Enzyme Inhibitors/administration & dosage , Cardiac Output, Low/drug therapy , Cardiac Output, Low/metabolism , Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Chronic Disease , Dose-Response Relationship, Drug , Humans , Randomized Controlled Trials as TopicABSTRACT
Fossa ovalis membrane aneurysm was diagnosed by transesophageal echocardiography in 45 of 134 consecutive patients (34%) with embolic cerebrovascular ischemic events. A potential cardiovascular source of embolism, other than the fossa ovalis membrane aneurysm, was found in 91% of these patients (41 of 45).
