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测定慢性支气管炎及肺气肿病人的心内压力是困难的,这是由于压力曲线受呼吸幅度变化的影响。显著的呼吸变化使胸内压力异常波动。尽管有技术上的困难,对慢性阻塞性肺疾。病(COPD)病人血液动力学的观察并不少。许多研究集中在休息及运动时右心及左心功能。 COPD病人的早期血液动力学研究发现有肺动脉压的升高及右心室收缩压的增高。临床有右心衰竭与无右心衰竭的慢性阻塞性肺疾病病人相比较,前者有肺动脉压显著增高及动脉
Determination of chronic bronchitis and emphysema in patients with intracardiac pressure is difficult, this is because the pressure curve by the respiratory rate changes. Significant changes in breathing abnormal fluctuations in intrathoracic pressure. Despite the technical difficulties, chronic obstructive pulmonary disease. Hemodynamic findings in patients with COPD are not uncommon. Many studies have focused on right heart and left heart function during rest and exercise. Early hemodynamic studies in patients with COPD found elevated pulmonary arterial pressure and increased right ventricular systolic pressure. Clinical right heart failure and chronic obstructive pulmonary disease patients without right heart failure compared to the former pulmonary hypertension was significantly increased and arteries