Gil Bo Mi, Beck Kyongmin Sarah, Kim Kyung Soo, Han Dae Hee
Department of Radiology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 327, Sosa-ro, Wonmi-gu, Bucheon-si 14647, Gyeonggi-do, Republic of Korea.
Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea.
Diagnostics (Basel). 2023 Aug 24;13(17):2744. doi: 10.3390/diagnostics13172744.
Preoperative detection of the arteria praebronchialis (AP), a rare variant mediastinal branch of the left pulmonary artery, can be crucial to a successful left-lung surgery; if the AP is overlooked and ligated during surgery, the blood supply to the remaining lobe may be compromised. The purpose of this study was to update the incidence and branching patterns of the AP. From 18 April 2012 to 31 December 2022, contrast-enhanced CT was screened by one radiologist for the presence of AP. Branching patterns of the AP were analyzed by three thoracic radiologists. The incidence of AP was updated to 0.068% (18/26,310) from the previously reported 0.03%; the incidence of AP for male and female patients was 0.110% and 0.017%, respectively. AP supplied only the LLL in 10 cases and both the lingular division of LUL and LLL in nine cases. Dual segmental supply by both the AP and the normal left descending pulmonary artery existed in 15 cases; exclusive segmental supply by either artery existed in four cases. The AP supplies either the LLL alone or both LLL and the lingular division of LUL, and its incidence is not negligible in the male population, necessitating routine surveillance prior to pulmonary resection.
术前检测支气管前动脉（AP），一种左肺动脉罕见的纵隔分支变异，对于成功进行左肺手术至关重要；如果在手术中AP被忽视并结扎，剩余肺叶的血供可能会受到影响。本研究的目的是更新AP的发生率和分支模式。2012年4月18日至2022年12月31日，由一名放射科医生对增强CT进行筛查，以确定是否存在AP。由三名胸部放射科医生分析AP的分支模式。AP的发生率从先前报告的0.03%更新至0.068%（18/26,310）；男性和女性患者AP的发生率分别为0.110%和0.017%。AP仅供应左下叶（LLL）10例，供应左上叶（LUL）舌段和LLL 9例。AP和正常左肺下肺动脉双节段供血15例；单一动脉单独节段供血4例。AP单独供应LLL或同时供应LLL和LUL舌段，其在男性人群中的发生率不可忽视，因此在肺切除术前需要进行常规监测。
