EFFECT OF OMENTAL, INTERCOSTAL, AND INTERNAL MAMMARY ARTERY PEDICLE WRAPS ON BRONCHIAL HEALING
EFFECT OF OMENTAL, INTERCOSTAL, AND INTERNAL MAMMARY ARTERY PEDICLE WRAPS ON BRONCHIAL HEALING
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DOI:
10.1016/0003-4975(90)90303-n
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发表时间:
1990-04-01
影响因子:
4.6
通讯作者:
BROWN, JW
中科院分区:
文献类型:
--
作者:
TURRENTINE, MW;KESLER, KA;BROWN, JW
Bronchial transection and devascularization is necessary in the course of sleeve resection of lung transplantation, leaving distal bronchial segments ischemic and subject to stricture or dehiscence. Thirty mongrel dogs underwent left lung autotransplantation. The bronchial anastomosis was wrapped with omentum (n = 9), intercostal muscle pedicle (n = 9), or internal mammary artery pedicle grafts (n = 6). Six control animals underwent bronchial anastomosis without an external wrap. Bronchial revascularization by capillary ingrowth from the pedicle to the bronchial submucosal plexus was demonstrated with all three types of vascular pedicle grafts; however, more consistent and confluent vascular ingrowth was provided by internal mammary artery pedicle grafts. Additionally, the bronchial anastomotic crossectional area was significantly better in the internal mammary artery group (84.5 .+-. 3.3) as compared with that of the omental (68.4 .+-. 8.3), intercoastal muscle (66.9 .+-. 10.9), or control groups (70.2 .+-. 7.6). An internal mammary artery pedicle graft and the presence of dense confluent submucosal vascular ingrowth from any pedicle graft were independently predictive (p < 0.05) of minimizing bronchial anastomotic narrowing. These data are consistent with previous findings suggesting that omental and intercostal muscle pedicle grafts promote early bronchial revascularization; moreover, the data demonstrate the superiority of an internal mammary artery pedicle graft to provide submucosal vascular ingrowth and to minimize anastomotic stenosis.