Document Detail


Dynamic determinants of left ventricular early diastolic filling in old myocardial infarction.
MedLine Citation:
PMID:  1495169     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The determinants of left ventricular early diastolic filling were assessed in 15 patients with old myocardial infarction. The left atrial pressure (LAP) and left ventricular pressure (LVP) were simultaneously measured by a Millar's multisensor micromanometer with the pusled Doppler mitral inflow velocity at baseline and during angiotensin infusion (20 ng/kg/min). Cardiac output was measured by a thermodilution method. LV peak systolic pressure and end-diastolic pressure were significantly (p less than 0.001) increased during angiotensin infusion from 137 +/- 19 to 170 +/- 21 mmHg and from 13.3 +/- 5.9 to 20.4 +/- 6.2 mmHg, respectively. Cardiac index was significantly decreased during angiotensin infusion. Heart rate, diastolic time, and peak positive dP/dt were unchanged. Although the LA-LV peak pressure gradient[(LAP-LVP) max] was unchanged (from 2.8 +/- 1.0 to 3.0 +/- 1.4 mmHg), the pressure gradient interval (the interval between the first and second points of transmitral pressure crossover) was significantly (p less than 0.001) decreased from 154 +/- 38 to 117 +/- 26 msec during angiotensin infusion. Peak early diastolic mitral inflow velocity (peak E) and the time-velocity integral of E wave (Ei) were significantly decreased during angiotensin infusion from 51 +/- 10 to 45 +/- 11 cm/sec (p less than 0.002) and from 7.47 +/- 1.96 to 5.70 +/- 1.66 cm (p less than 0.001), respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
K Katayama; M Matsuzaki; K Moritani; M Kohno; T Fujii; H Ogawa; Y Matsuda; R Kusukawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese circulation journal     Volume:  56     ISSN:  0047-1828     ISO Abbreviation:  Jpn. Circ. J.     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-09-10     Completed Date:  1992-09-10     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7806868     Medline TA:  Jpn Circ J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  750-8     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Yamaguchi University School of Medicine, Ube, Japan.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Angiotensin II / pharmacology
Hemodynamics / drug effects
Humans
Middle Aged
Myocardial Infarction / physiopathology*
Ventricular Function, Left*
Chemical
Reg. No./Substance:
11128-99-7/Angiotensin II

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