Abstract
OBJECTIVES: This study sought to test the vasoreactivity of the translocated coronary arteries after arterial switch operation (ASO) using quantitative angiographic analysis and intracoronary Doppler flow wire velocimetry. BACKGROUND: Late coronary artery events occur in 3% to 8% of patients after the ASO. Previous studies of coronary flow reserve have yielded disparate results. METHODS: Nineteen children previously underwent ASO (13 boys, age 5.4 ± 3.2 years, weight 22.3 ± 10.6 kg), and six control patients were enrolled in the study. Each patient underwent quantitative angiographic assessment of the epicardial coronary arteries before and after administration of nitroglycerin and coronary blood flow volume assessment before and after administration of adenosine and acetylcholine. The results were compared between groups. RESULTS: Epicardial coronary artery dilation in response to intracoronary nitroglycerin was significantly less in the ASO group than in the control group (left anterior descending [LAD], 5.0 ± 0.05% vs. 18.0 ± 4.5%, p = 0.0009; right coronary artery [RCA], 4.0 ± 0.07% vs. 32.7 ± 12.7%, p = 0.006). Moreover, the coronary blood flow volume reserve was reduced in ASO patients compared with control patients after intracoronary infusion of acetylcholine (2.3 ± 0.9 vs. 4.9 ± 1.7, p = 0.0003) or adenosine (2.7 ± 1.5 vs. 5 ± 0.5, p = 0.002). CONCLUSIONS: Epicardial coronary arteries fail to dilate normally in children after ASO, and the calculated coronary flow volume reserve is consequently reduced.
| Original language | English |
|---|---|
| Pages (from-to) | 1565-1572 |
| Number of pages | 8 |
| Journal | Journal of the American College of Cardiology |
| Volume | 46 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - Oct 18 2005 |
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Abnormal vasomotor function of the epicardial coronary arteries in children five to eight years after arterial switch operation : An angiographic and intracoronary Doppler flow wire study. / Gagliardi, Maria Giulia; Adorisio, Rachele; Crea, Filippo; Versacci, Paolo; Di Donato, Roberto; Sanders, Stephen P.
In: Journal of the American College of Cardiology, Vol. 46, No. 8, 18.10.2005, p. 1565-1572.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Abnormal vasomotor function of the epicardial coronary arteries in children five to eight years after arterial switch operation
T2 - An angiographic and intracoronary Doppler flow wire study
AU - Gagliardi, Maria Giulia
AU - Adorisio, Rachele
AU - Crea, Filippo
AU - Versacci, Paolo
AU - Di Donato, Roberto
AU - Sanders, Stephen P.
PY - 2005/10/18
Y1 - 2005/10/18
N2 - OBJECTIVES: This study sought to test the vasoreactivity of the translocated coronary arteries after arterial switch operation (ASO) using quantitative angiographic analysis and intracoronary Doppler flow wire velocimetry. BACKGROUND: Late coronary artery events occur in 3% to 8% of patients after the ASO. Previous studies of coronary flow reserve have yielded disparate results. METHODS: Nineteen children previously underwent ASO (13 boys, age 5.4 ± 3.2 years, weight 22.3 ± 10.6 kg), and six control patients were enrolled in the study. Each patient underwent quantitative angiographic assessment of the epicardial coronary arteries before and after administration of nitroglycerin and coronary blood flow volume assessment before and after administration of adenosine and acetylcholine. The results were compared between groups. RESULTS: Epicardial coronary artery dilation in response to intracoronary nitroglycerin was significantly less in the ASO group than in the control group (left anterior descending [LAD], 5.0 ± 0.05% vs. 18.0 ± 4.5%, p = 0.0009; right coronary artery [RCA], 4.0 ± 0.07% vs. 32.7 ± 12.7%, p = 0.006). Moreover, the coronary blood flow volume reserve was reduced in ASO patients compared with control patients after intracoronary infusion of acetylcholine (2.3 ± 0.9 vs. 4.9 ± 1.7, p = 0.0003) or adenosine (2.7 ± 1.5 vs. 5 ± 0.5, p = 0.002). CONCLUSIONS: Epicardial coronary arteries fail to dilate normally in children after ASO, and the calculated coronary flow volume reserve is consequently reduced.
AB - OBJECTIVES: This study sought to test the vasoreactivity of the translocated coronary arteries after arterial switch operation (ASO) using quantitative angiographic analysis and intracoronary Doppler flow wire velocimetry. BACKGROUND: Late coronary artery events occur in 3% to 8% of patients after the ASO. Previous studies of coronary flow reserve have yielded disparate results. METHODS: Nineteen children previously underwent ASO (13 boys, age 5.4 ± 3.2 years, weight 22.3 ± 10.6 kg), and six control patients were enrolled in the study. Each patient underwent quantitative angiographic assessment of the epicardial coronary arteries before and after administration of nitroglycerin and coronary blood flow volume assessment before and after administration of adenosine and acetylcholine. The results were compared between groups. RESULTS: Epicardial coronary artery dilation in response to intracoronary nitroglycerin was significantly less in the ASO group than in the control group (left anterior descending [LAD], 5.0 ± 0.05% vs. 18.0 ± 4.5%, p = 0.0009; right coronary artery [RCA], 4.0 ± 0.07% vs. 32.7 ± 12.7%, p = 0.006). Moreover, the coronary blood flow volume reserve was reduced in ASO patients compared with control patients after intracoronary infusion of acetylcholine (2.3 ± 0.9 vs. 4.9 ± 1.7, p = 0.0003) or adenosine (2.7 ± 1.5 vs. 5 ± 0.5, p = 0.002). CONCLUSIONS: Epicardial coronary arteries fail to dilate normally in children after ASO, and the calculated coronary flow volume reserve is consequently reduced.
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U2 - 10.1016/j.jacc.2005.06.065
DO - 10.1016/j.jacc.2005.06.065
M3 - Article
VL - 46
SP - 1565
EP - 1572
JO - Journal of the American College of Cardiology
JF - Journal of the American College of Cardiology
SN - 0735-1097
IS - 8
ER -