肺結核症に於ける心肺機能に關する研究(第3報) : 肺の健常部及び病巣部に於ける所謂Wedge血の性状に就いて

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In 31 patients with pulmonary tuberculosis, the "wedge" pressure was measured and the "wedge" blood was drawn by cardiac catheterization. The results were as follows : A) In normal portion : "wedge" pressures were within normal range. The gas compositions of the "wedge" blood showed higher O_2 content and much lower CO_2 content than in arterial blood, whenever the "wedge" blood passed through the normal alveoli. The author designated the blood sample which showed such gas compositions as the "wedge" blood drawn in normal portion as "Super Aerated Blood". The "Super-Aeration" of the "wedge" blood is attributable mainly to diffusion of O_2 and CO_2 contained in the "wedge" blood through the normal alveoli.B) In tuberculous portion : "wedge" pressure curves were differed from those obtained in normal portion, and "wedge" pressures were so high that exceeded sometimes the pulmonary arterial mean pressure. The gas compositions of the "wedge" blood were not "Super Aerated" but nearly equal to those of adterial blood. These facts indicate nothing but the existence of precapillary anastomosis between the pulmonary and bronchial arterial system in tuberculous portion of the lung.
社団法人日本循環器学会の論文
1959-05-20