Simultaneous doppler and thermodilution assessment of pulmonary artery flow during acute interventions in patients with chronic obstructive pulmonary disease

A. Torbicki, R. Tramarin, C. Fracchia, A. Mortara, N. Ambrosino, M. Pozzoli, C. Rampulla, F. Cobelli

Research output: Contribution to journalArticlepeer-review

Abstract

Subcostal pulsed wave Doppler echocardiography of the right venticular outflow tract was used to assess pulmonary arterial flow at basal conditions and during interventions in 20 patients with chronic obstructive pulmonary disease. The changes in the pulmonary flow induced by interventions ranged from -1.5 l/min to +4.18 l/min (73% to 183% of the basal value). When considered alone, heart rate changes induced by the interventions could explain 53% of the changes in pulmonary flow measured with thermodilution. When Doppler-assessed right ventricular stroke volume changes were also considered the coefficient of determination (R) increased to 77% (r=0.88, p

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalCor et Vasa
Volume32
Issue number3
Publication statusPublished - 1990

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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