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使用肺阻抗血流图对尼群地平治疗慢性肺心病急性发作期肺动脉高压的疗效进行观测，结果表明：（１）尼群地平具有较为明显的降低慢性肺心病急性发作期肺动脉高压的作用，与对照组及治疗前比较，有极显著性差异（Ｐ＜０．０１）；（２）在持续低流量吸氧的同时服用尼群地平，可使动脉血氧分压增高，二氧化碳分压降低；（３）对于慢性肺心病急性发作期伴血压增高的患者，尼群地平具有降低血压的作用。提示尼群地平对于慢性肺心病急性发作期肺动脉高压具有明显的治疗作用，特别适用于同时伴有血压增高的患者。
The use of pulmonary impedance blood flow map of nitrendipine treatment of chronic pulmonary heart disease in the acute attack of pulmonary hypertension were observed, the results showed that: (1) nitrendipine significantly lower chronic pulmonary heart disease in acute attack of pulmonary hypertension, and (P <0.01). (2) When taking nitrendipine with continuous low-flow oxygen inhalation, the partial pressure of arterial oxygen increased and the partial pressure of carbon dioxide decreased. (3) Nitrendipine has a hypotensive effect on patients with elevated blood pressure during the acute episodes of chronic pulmonary heart disease. Prompted nitrendipine for chronic pulmonary heart disease acute episode of pulmonary hypertension has a significant therapeutic effect, especially for patients with elevated blood pressure at the same time.