The Use of an Implantable Loop Recorder in Patients With Syncope of Unknown Origin.
10.4070/kcj.2008.38.4.205
- Author:
Dae Hee SHIN
1
;
June Soo KIM
;
Jung Wae PARK
;
Hay Ran YIM
;
Jun Hyung KIM
;
Seon Mee LEE
;
Ki Sun KIM
;
Chang Hee LEE
;
Dong Chae JUNG
;
Young Keun ON
;
Duk Kyung KIM
;
Sang Hoon LEE
;
Kyung Pyo HONG
;
Jeong Euy PARK
Author Information
1. Division of Cardiology, Cardiac and Vascular Center, Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, Korea. juneskim@skku.edu
- Publication Type:Original Article
- Keywords:
Syncope;
Electrocardiography monitoring, ambulatory;
Arrhythmia
- MeSH:
Arrhythmias, Cardiac;
Atrial Fibrillation;
Defibrillators;
Diagnostic Tests, Routine;
Electrocardiography;
Electrocardiography, Ambulatory;
Female;
Follow-Up Studies;
Heart;
Humans;
Male;
Memory;
Organothiophosphorus Compounds;
Syncope;
Tachycardia, Ventricular
- From:Korean Circulation Journal
2008;38(4):205-211
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND OBJECTIVES: Possible mechanisms of syncope often remain unknown despite the performance of extensive cardiological and neurological tests. An implantable loop recorder (ILR) has been introduced to monitor the heart rhythm continuously over a year. We evaluated the diagnostic value of the use of the ILR for unexplained syncope. SUBJECTS AND METHODS: Between 2006 and 2007, an ILR was implanted in 9 patients (7 male, 2 female, mean age 55+/-17 years) where syncope remained unexplained after extensive diagnostic tests. We analyzed the recorded electrocardiogram signal in the memory of the ILR. RESULTS: During a follow-up period of 8.8+/-7.3 months, arrhythmia was detected in five patients. Two patients had a sinus pause and received a permanent pacemaker, and one patient had sustained ventricular tachycardia and fibrillation and received an implantable cardioverter defibrillator. One patient had micturition syncope with sinus pause and is waiting for permanent pacemaker implantation, and one patient had symptomatic paroxysmal atrial fibrillation and was administered anticoagulation therapy. Inappropriate auto-activations such as a pseudopause or a decreasing signal were also noted. CONCLUSION: ILR monitoring seems to be a useful diagnostic tool to identify the arrhythmic cause in patients with unexplained syncope.
