NCT00669552

Intracardiac T-wave Alternans and Ischemia

Intracardiac T-wave Alternans and Ischemia During Percutaneous Coronary Interventions

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 11 (actual)
• Sponsor: Columbia University · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

T-wave alternans is a test that looks at microvolt changes in the T-wave on a beat to beat basis. The presence or absence of such changes has been shown to predict or exclude future arrhythmic events. The mechanism of T-wave alternans is unclear, but may relate to calcium metabolism in the heart, and may be affected by conditions such as ischemia or heart failure. The purpose of this study is to determine whether T-wave alternans, as measured through the lead of an implantable defibrillator, is produced by acute ischemia induced by occlusion during percutaneous coronary interventions.

Conditions

• Ischemia

Interventions

Type	Name	Description
PROCEDURE	Percutaneous coronary intervention	PCI previously electively scheduled.

Timeline

• Start date: 2008-08-01
• Primary completion: 2012-07-01
• Completion: 2012-07-01
• First posted: 2008-04-30
• Last updated: 2013-04-19
• Results posted: 2013-03-28

Locations

1 site across 1 country: United States