van Deventer Petrus V, Graewe Frank R
Stellenbosch, South Africa.
From the Division of Plastic and Reconstructive Surgery, Faculty of Health Sciences, University of Stellenbosch.
Plast Reconstr Surg. 2016 May;137(5):1388-1397. doi: 10.1097/PRS.0000000000002048.
Many surgeons are under the impression that the blood supply is clearly defined in textbooks. Unfortunately, the majority of textbooks supply inadequate information and illustrations can be misleading in many instances. None of the textbooks describe a segmental pattern of blood supply when in actual fact a basic segmental pattern does exist. The reason for inadequate information is the perpetuation of facts since the work of the pioneers Cooper and Manchot from one textbook to another. A paucity of research studies thereafter and the fact that the results of some of these studies did not find their way into textbooks is another contributing factor.
The findings of research studies since the descriptions by Cooper and Manchot are analyzed and compared in an effort to find common ground and its clinical implication.
Researchers concurred on the main sources of blood supply; these are internal thoracic, lateral thoracic, anterior intercostal, and acromiothoracic (thoracoacromial) arteries. However, the different research studies showed considerable variation in the branches from the main sources to supply the nipple-areola complex.
Even though the locations of the main sources of blood supply are constant, partial or complete absence of branches from the main sources does occur and therefore the blood supply to the nipple-areola complex is unpredictable. Cognizance of the basic segmental pattern and the variations resulting from embryologic development will be helpful for the surgeon to use or adapt a technique to minimize the risk of nipple necrosis.
许多外科医生认为教科书对血液供应有明确的定义。不幸的是,大多数教科书提供的信息不足,而且在许多情况下插图可能会产生误导。实际上存在一种基本的节段性血液供应模式,但没有一本教科书对此进行描述。信息不足的原因是自先驱者库珀和曼肖特的研究成果在一本本教科书中延续下来。此后研究匮乏,且其中一些研究结果未被纳入教科书,这也是一个促成因素。
对自库珀和曼肖特描述以来的研究结果进行分析和比较,以寻找共同点及其临床意义。
研究人员对血液供应的主要来源达成了共识;这些来源是胸廓内动脉、胸外侧动脉、肋间前动脉和胸肩峰动脉。然而,不同的研究表明,从主要来源供应乳头乳晕复合体的分支存在相当大的差异。
尽管血液供应主要来源的位置是固定的,但主要来源的分支确实会出现部分或完全缺失的情况,因此乳头乳晕复合体的血液供应是不可预测的。认识到基本的节段性模式以及胚胎发育导致的变异,将有助于外科医生采用或调整技术,以尽量降低乳头坏死的风险。