Author + information
- Kennosuke Yamashita,
- Masahiko Ochiai,
- Yuji Oyama,
- Wataru Igawa,
- Morio Ono,
- Takehiko Kido,
- Seitarou Ebara,
- Toshitaka Okabe,
- Myong Hwa Yamamoto,
- Shigeo Saito,
- Kisaki Amemiya,
- Naoei Isomura and
- Hiroshi Araki
Background: Successful percutaneous coronary intervenetion (PCI) of chronic total occulued (CTO) artery was associated with reduction of cardiac mortality, as well as a decrease in fatal ventricular arrhythmia.
We evaluated the effect of CTO recanalization on left ventricular voltage change using paired electrophysiological findings.
Methods and Results: The subjects were 16 consecutive patients with ischemic cardiomyopathy who underwent PCI for CTO lesion.
High-density mapping during sinus rhythm was performed with the PentaRay Nav catheter and CARTO3 system prior to and 8-month after the recanalization of a true CTO defined as thrombolysis in myocardial infarction flow 0 and duration of occlusion of more than 3-month.
Bipolar electrograms were defined as preserved voltage (>1.5mV), borderzone voltage (0.5-1.5mV), and dense scar (<0.5mV).
A mean number of 1236±204 sampling points were taken per patient.
Of the total LV area (246±36cm2), borderzone area was 26.4±12.2cm2.
Bipolar electrograms at CTO site were significantry increased from 0.76±0.36mV to 0.95±0.42mV (p=0.02). Scar area was not changed but borderzone area was decreased to 21.9±11.4cm2 (p=0.04).
Conclusions: Recanalization of CTO might contribute to reverse left ventricular remodeling.
Poster Hall, Hall C
Sunday, March 19, 2017, 9:45 a.m.-10:30 a.m.
Session Title: Advances in Chronic Total Occlusion Intervention
Abstract Category: 20. Interventional Cardiology: Coronary Intervention: CTO
Presentation Number: 1282-120
- 2017 American College of Cardiology Foundation