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The porcine bronchial artery: surgical and angiographic anatomy

  • JOHN GADE (a1), MARTIN A. NORGAARD (a1), CLAUS B. ANDERSEN (a2), GÖSTA PETTERSSON (a1), ULRIK G. SVENDSEN (a3) and PETER S. OLSEN (a1)...

Abstract

The pig is often used in experimental studies on the significance of bronchial artery circulation, but the anatomy of this artery is only poorly described. The purpose of this study was to improve the anatomical basis for experimental studies on the porcine bronchial artery circulation. The origin of the artery from the aorta is described in 32 pigs. Heart–lung blocks were perfused with saline and removed in 16 pigs, and the broncho-oesophageal orifice was identified and cannulated. In these 16 specimens the intrapulmonary ramification was studied by angiography, and the extrapulmonary distribution and supply area by injection of Evans Blue. The broncho-oesophageal artery originated from the aorta as a single trunk in 91%. Angiography showed that each principal bronchus was accompanied by 2 bronchial artery branches far into the lung parenchyma. The central branching pattern of the artery between the aorta and the principal bronchi was divided into 3 subtypes. Evans Blue showed communication with the whole mediastinum. The anatomical relations are described. It is concluded that the broncho-oesophageal artery divides to follow each bronchus with 2 bronchial branches. A nomenclature for these branches is suggested. The pig anatomy is suited for experimental investigations on the bronchial circulation.

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Corresponding author

Correspondence to Dr John Gade, Department of Cardiothoracic Surgery RT, 2152, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen Ø, Denmark. Tel.: +45 35 45 10 81 or +45 35 45 23 08; fax: +45 35 45 25 48; e-mail: johngade@dadlnet.dk

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The porcine bronchial artery: surgical and angiographic anatomy

  • JOHN GADE (a1), MARTIN A. NORGAARD (a1), CLAUS B. ANDERSEN (a2), GÖSTA PETTERSSON (a1), ULRIK G. SVENDSEN (a3) and PETER S. OLSEN (a1)...

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