Abstract:
BACKGROUND:The internal mammary artery (IMA) is one of the most popular recipients for microsurgical breast reconstruction. However, it is often separated into sleeve-like layers when it is handled. This study tried to explain this unique behaviour of the IMA through histologic observation. METHODS:Nine pairs of IMAs and DIEAs were harvested and subject for haematoxylin-eosin and Verhoeff's elastic staining. Thickness of the tunica media and the number of elastic lamellae were compared. Samples of the IMA, the DIEA, and the thoracodorsal artery from another patient were observed through the transmission electron microscope to further show the structural differences. RESULTS:The most notable difference was presence of multiple elastic lamellae in tunica media in the IMAs, which was barely present in the DIEAs. The mean number of elastic lamellae was 9.2 in the IMA group and 1.0 in the DIEA group (p < 10(-9)). A transmission electron microscope showed that the tunica media of the DIEA and the TDA was densely packed with smooth muscle cells, while the muscle cells distributed sparsely in the IMA. CONCLUSIONS:The IMA is an elastic artery which is characterised by multiple layers of elastic lamellae while relatively lacking in smooth muscle cells. The wall of the IMA is easily dissected between the tunica media and the adventitia, or at the outer 1/3 of the tunica media. The inner structure is easily torn if microsutures do not engage the tunica adventitia.
journal_name
J Plast Surg Hand Surgjournal_title
Journal of plastic surgery and hand surgeryauthors
Jeong WS,Yun J,Lee TJ,Eom JS,Kim EKdoi
10.3109/2000656X.2015.1021815subject
Has Abstractpub_date
2015-01-01 00:00:00pages
234-7issue
4eissn
2000-656Xissn
2000-6764journal_volume
49pub_type
杂志文章abstract::Dysphagia is an important postoperative problem in patients with oral cancer. We evaluated the usefulness of a technique to modify the flap and scar for the alleviation of swallowing disorders. The modifications were made while tongue pressure was being measured to improve excursion of the residual tongue in nine pati...
journal_title:Journal of plastic surgery and hand surgery
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abstract::Fixation of the elevated eyebrow is an important final step in endoscopic forehead lifting. One of the most common methods of fixation includes temporal fasciae sutures for the tail of the eyebrow, and mini-screws for the body of the eyebrow. The concentric cables fixation is an alternative method for elevation of bot...
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journal_title:Journal of plastic surgery and hand surgery
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journal_title:Journal of plastic surgery and hand surgery
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journal_title:Journal of plastic surgery and hand surgery
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