Correlation between pressure-derived coronary collateral flow and Rentrop grade after primary percutaneous intervention of acute myocardial infarction.
- Author:
Zhi-xiong CAI
1
;
Xiao-qing WANG
;
Bin LAN
;
Lian-qing HU
;
Ping CHEN
;
Zhi-dan ZHU
;
Shun-qi GUO
;
Yan-hua LUO
;
Rong-he XU
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Angioplasty, Balloon, Coronary; Blood Pressure; physiology; Collateral Circulation; physiology; Coronary Angiography; methods; Coronary Circulation; physiology; Female; Humans; Male; Middle Aged; Myocardial Infarction; diagnostic imaging; physiopathology; therapy; Neovascularization, Physiologic; Regional Blood Flow
- From: Journal of Southern Medical University 2006;26(6):799-801
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo analyze the correlation between pressure-derived collateral coronary flow (PDCF) and Rentrop grade of patients with acute myocardial infarction (AMI).
METHODSPDCF, determined by the ratio of P(w)/P(a), was measured in 29 patients with AMI of the first onset who received primary percutaneous coronary intervention (PCI) within 12 h after the onset. Sufficient collateral flow (group A, n=19) was defined as PDCF>0.24 and insufficient collateral flow (group B, n=10) as PDCF< or =0.24. Rentrop grade of the collateral flow was evaluated by coronary angiography. Echocardiography was performed on the 3rd and 30th day after PCI. The left ventricular ejection fraction, end-systolic and end-diastolic volumes, and the related indexes were obtained.
RESULTRentrop grade was significantly related to PDCF (r=0.75, P<0.01), but a wide range of PDCF was observed in patients with Rentrop grade< or =1.
CONCLUSIONPDCF measurement allows quantitative evaluation of the collateral flow in patients with AMI.
