Genin A M, Galichiĭ V A
Aviakosm Ekolog Med. 1995;29(4):28-32.
Reactions of external respiration on catheterization of main blood vessels were studied in healthy subjects following 12 hr and 5-6 day immersion. The purpose of the investigation was to detect respiratory signs of hyperemia in pulmonary circulation under these conditions. Results of the investigation were compared with the data of great vessel catheterization in patients of a cardiological clinic afflicted with cardiac diseases with lung hyperemia and lung tissue hyperhydration. The results obtained failed to confirm suppositions about elevated blood filling of the lung and a possible increase of lung tissue hydration during water immersion. Catheterization of great vessels in patients and healthy subjects in most cases leads to an increase of respiratory minute volume. In patients with cardiac diseases the respiratory minute volume grew with an adequate rise in breathing rate, respiratory volume and gas exchange parameters unaltered; this suggested excessive blood filling of the lung and resulting higher respiratory resistance. After immersion the healthy subjects displayed an utterly different pattern, i.e. the growth of their respiratory minute volume was provided exclusively by the growth of respiratory volume while breathing rate did not change and gas exchange increased. These observations were considered an evidence of hyperemia and hyperhydration of pulmonary tissue.
在健康受试者经过12小时及5 - 6天浸泡后，研究了大血管插管时的外呼吸反应。本研究的目的是检测在这些条件下肺循环充血的呼吸体征。将研究结果与心脏病诊所中患有伴有肺充血和肺组织水合作用增强的心脏病患者的大血管插管数据进行了比较。所得结果未能证实关于水浸期间肺充血增加以及肺组织水合作用可能增加的假设。在患者和健康受试者中进行大血管插管，在大多数情况下会导致呼吸分钟量增加。在患有心脏病的患者中，呼吸分钟量随着呼吸频率的适度增加而增加，呼吸量和气体交换参数未改变；这表明肺充血过多并导致更高的呼吸阻力。浸泡后，健康受试者表现出完全不同的模式，即他们的呼吸分钟量增加完全是由呼吸量的增加引起的，而呼吸频率不变且气体交换增加。这些观察结果被认为是肺组织充血和水合作用增强的证据。
