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Paper Information

Journal:   TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ)   2004 , Volume 62 , Number 8; Page(s) 637 To 643.
 
Paper: 

@IMMEDIATE OUTCOME OF CORONARY ANGIOPLASTY IN CHRONIC TOTAL OCCLUSIONS WITH BRIDGING COLLATERAL VESSELS

 
 
Author(s):  HENDESI F., GHAEMIAN A., RASTEGARI Y., GHASEMI M.
 
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Abstract: 

Background: In angioplasty of chronic total occlusion categorizing lesion characteristics may be useful for their impact on procedural success. There is controversy about the role of bridging collateral vessels in chronic total occlusion procedural outcome. This study investigated the effect of bridging collateral vessels on the success of coronary angioplasty in  patients with chronic total occlusions.
Methods: Seventy seven consecutive patients undergoing coronary angioplasty for chronic total occlusion were classified into two groups. Group I patients had chronic total occlusion with bridging collateral vessels (27 patients), and patients in group II had not such vessels (50 patients).
Results: Procedural success was achieved in 11 patients in group I and in 41 patients in group II (40.7% vs 82%; P=0.0002; relative risk 3.9; 95% confidence interval 1.7-6.4). Of 52 patients with successful results than patients with ≥3 months (63.5% vs 47.5%; P= 0.0001; relative risk 1.8; 95% confidence interval 1.3-2.6). Presence of a side branch of ≤2mm at occlusion point was a predictor of unsuccessful result (p=0.007; relative risk 2.9;95% confidence confidence interval 1.5-5.6).

Conclusion: There are some morphologic variables which may be useful in guiding angioplasty in patients with chronic total coronary occlusion . presence of bridging collateral vessels is one of them , which appear to be inversely related to procedural success.

 
Keyword(s): CORONARY ANGIOPLASTY, BRIDGING COLLATERAL VESSELS, CORONARY OCCLUSION
 
References: 
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