AI Summary & Key Takeaways
AI InsightConclusion: Although muscular bridge were detected over mid and distal segments of both RCA and LAD, and first diagonal branch of LAD, however it was most frequently encountered on the mid segment of LAD.
📌 3 Key Takeaways
Abstract
Aim: Muscular bridge is defined as a coronary artery segment which has a narrow diamater in systole but a normal diameter in diastole. Although patients with muscular bridge have a good long term prognosis, however, acute coronary syndromes may be seen as a complication. In this retrospective study, we aimed to determine the coronary angiographic characterictics of the patients who have muscular bridge on the coronary angiography. Material and Method: Out of 3608 patients underwent coronary angiography between November-1999 and September-2002, 42 had muscular bridge. Thirty-four patients were male and 8 were female. Muscular bridge was detected in 43 coronary arteries of 42 patients. The incidence of muscular bridge was 1.16%. Result: Diamater stenosis caused by muscular bridge and length of the muscular bridge were 47.5±21% and 1.8±0.6 cm, respectively. The distribution of the muscular bridge on the coronary artery tree were as follows: mid-LAD (left anterior descending coronary artery): 27 patients (62.9%), distal-LAD: 12 patients (27.9%), 1. Diagonal branch of LAD: 2 patients (4.6%), mid-RCA: 1 patient (2.3%) and distal-RCA: 1 patient ( 2.3%). Conclusion: Although muscular bridge were detected over mid and distal segments of both RCA and LAD, and first diagonal branch of LAD, however it was most frequently encountered on the mid segment of LAD.
Özet
Amaç: Kas bandı, anjiyografik olarak diastolde normal olan sistolde ise daralan koroner arter segmenti olarak tanımlanır. Genelde kas bandı olan hastaların uzun dönem prognozları iyi olmasına rağmen akut koroner sendromlara neden olabilirler. Bu çalışmada kas bandı tespit edilen olgularımızın anjiyografik özelliklerinin incelenmesi amaçlanmıştır. Gereç ve Yöntem: Çalışmaya Kasım 1999 ile Eylül 2002 tarihleri arasında koroner anjiyografisi yapılan 3608 hastadan kas bandı tespit edilen 42 hasta dahil edildi. Kas bandı insidansı %1.16 idi. Hastaların 34'ü erkek ve 8'i kadındı. Kırk iki hastanın 43 damarında kas bandı vardı. Bulgular: Kas bandının neden olduğu obstrüksiyon derecesi ve kas bandının uzunluğu sırasıyla %47.5±21 ve 1.8±0.6 cm olarak tespit edildi. Koroner ağaç üzerindeki dağılım ise şöyle idi: Yirmiyedi hastada (%62.9), mid-LAD'de (sol ön inen koroner arter), 12 hastada (%27.9) distal-LAD`de, 2 hastada (%4.6) LAD`nin 1. diagonal dalında, 1 hastada (%2.3) mid-RCA`da (sağ koroner arter), 1 hastada da (%2.3) distal RCA`da kas bandı tespit edildi. Sonuç: Kas bandı RCA ve LAD`nin mid ve distal segmentlerinde ve LAD`nin 1. diagonal dalında tespit edilmekle birlikte en sıklıkla mid-LAD`de saptanmıştır.