Congenital anterior chest wall deformities of diaphragmatic origin

Autor: Henry A. Brodkin
Rok vydání: 1953
Předmět:
Zdroj: Diseases of the chest. 24(3)
ISSN: 0096-0217
Popis: The deformities of the anterior chest wall commonly known as funnel chest, pigeon breast and Harrison's grooves for which the author has suggested the terms congenital chondrosternal depression, congenital chondrosternal prominence and congenital chondrocostal grooves respectively, are discussed as a related group of congenital deformities of the anterior chest wall. The present concepts of the etiology of these deformities, such as rickets, upper respiratory obstructions and severe cough and dyspnea are analyzed and refuted. It is acknowledged that these conditions do aggravate the extent of these deformities. Another concept is suggested to explain the mechanism and production of these deformities. In normal chests the normal muscular portion of the anterior division of the diaphragm contracts and pulls the anterior leaf of the trefoil membranous portion of the diaphragm toward the anterior chest wall which remains stationary. If the anterior portion is underdeveloped or has relatively less muscle fibers or is more tendinous it will be pulled dorsally by the rest of the musculature of the diaphragm and produce an inspiratory retraction of its anterior chest wall attachment. As the character and composition of this anterior portion of the diaphragm varies, so will the pull on the anterior chest wall. The variation in the amount and the site of the pull will correspondingly affect the degree of severity and type of each one of these three deformities.
Databáze: OpenAIRE