Cardiovascular journal of Africa · 2025
Effect of resting heart rate on coronary collateral formation in patients with chronic total occlusion: resting heart rate and collaterals.
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Yilmaz Samet, Türköz Anıl, Adali M Koray, Dursunoğlu Dursun
Аннотация
AIM: In this study our aim was to determine the effect of resting heart rate (HR) on the development of coronary collateral circulation (CCC) in patients with chronic total occlusion (CTO).
METHODS: A total of 219 patients who had CTO on their coronary angiography were divided into two groups according to their collateral status. CCC was graded by Rentrop Classification.
RESULTS: Patients with poor collaterals had significantly higher resting HR (79±13.9 vs 74.3±10.5, p=0.005) compared to patients with well collaterals. According to backward logistic regression analyses low HR (OR:0.974, p=0.033), high ejection fraction (OR:1.026, p=0.043) and the presence of CTO at the right coronary artery (OR7colon;3.201, p<0.001) were found to be significantly related with coronary collateral development.
CONCLUSIONS: Increased heart rate was found to be a risk factor for poor collateral formation.
METHODS: A total of 219 patients who had CTO on their coronary angiography were divided into two groups according to their collateral status. CCC was graded by Rentrop Classification.
RESULTS: Patients with poor collaterals had significantly higher resting HR (79±13.9 vs 74.3±10.5, p=0.005) compared to patients with well collaterals. According to backward logistic regression analyses low HR (OR:0.974, p=0.033), high ejection fraction (OR:1.026, p=0.043) and the presence of CTO at the right coronary artery (OR7colon;3.201, p<0.001) were found to be significantly related with coronary collateral development.
CONCLUSIONS: Increased heart rate was found to be a risk factor for poor collateral formation.