Coronary arteries variants & congenital anomalies; using MDCT to assess their prevalence in 1000 of the Egyptian population

Prevalence and imaging spectrum of coronary artery anomalies by coronary computed tomography angiography (CCTA) among patients with failed coronary artery catheterization; A single center cross-sectional study in Egyptian population

“…The current study reported that high take-off RCA was the most common detected class A anomaly accounting for 12.8% of the detected anomalies with 6% incidence among the studied cases. These results are higher than the results of Graidis et al [21], Erol and Seker [7], Chaosuwannakit [24], and Abdelrahman et al [9] who reported this anomaly in (0.78%, 0.43-0.8%, 0.4% and 0.2%), respectively. This might be attributed to the smaller sample size of the current study.…”

“…In terms of LMCA origin, the origin of LMCA was from the left coronary sinus of valsalva in 96%, from the non-coronary cusp in 1%, from the right coronary sinus of Valsalva as branch from single coronary artery in 2% and from the aortic arch in case of Truncus arteriosus type A4 in 1%, these findings are in agreement with G.Eldin et al [1] who reported that the origin of LMCA was from the left coronary sinus of valsalva in 96% and from the right coronary sinus of valsalva in 2% among the detected coeonary anomalies, and in partial agreement with Sirasapalli et al [23] who reported that LMCA originates from the right coronary sinus in 1.43%. Other studies conducted by Bunce et al [32], Chaosuwannakit [24] and Abdelrahman et al [9] recorded that the LMCA originates from the right coronary sinus in (0.09%, 0.2%, 0.4% respectively) of their study population.…”

“…The aim of the study to estimate the prevalence rate of coronary anomalies among patients with failed coronary catheterization for CAD. Assuming a prevalence rate of 18.9% as reported in a previous study by Abdel-rahman et al [9], this study required at least 59 participants to detect a similar prevalence rate with 5% deviation and 95% confidence interval. Sample size was calculated using the Statistics and Sample Size app for Android (version 14).…”

“…Multiple previous studies with variable sample sizes and different patient racial population reported different prevalence rates of coronary artery anomalies [1,6,7,9,[15][16][17][18][19][20][21][22][23][24][25][26][27][28] as shown in (Table 5). Kashyap et al [14] reported 2.06% prevalence of coronary anomalies, the anomalous origin and course of the coronaries were the most common anomaly seen in (1.29%) patients, followed by intrinsic anomalies of the coronary arterial system in (0.7%) patients and anomalies of coronary termination and anomalous anastomotic vessels in (0.03%).…”