Abstract:
:The influence of intravenous diltiazem on hemodynamics and left ventricular function indices was studied in 14 patients with severe coronary artery disease at rest and during atrial pacing. We used a tip manometer catheter for recording left ventricular pressure tracings and a nuclear probe for measuring left ventricular volume changes. Infusion of diltiazem at rest resulted in an increase in left ventricular enddiastolic volume (+16%, p < 0.0001); all other parameters did not differ significantly from baseline values. Angina pectoris occurred in all patients during atrial pacing before diltiazem infusion (ContrP); during pacing after diltiazem infusion (DiltP) only four patients became symptomatic (at the same pacing rates). Other differences between the two pacing studied and their baseline measurement were mean arterial pressure (ContrP: +13%, p < 0.001; DiltP: +11% p < 0.001), pulmonary wedge pressure (ContrP: +54%, p = 0.019; DiltP: NS), left ventricular enddiastolic pressure (ContrP: +40%, p < 0.005; DiltP: NS), left ventricular enddiastolic volume (ContrP: -19%, p = 0.001; DiltP: -33%, p = 0.0001), left ventricular ejection fraction (ContrP: -20%, p = 0.039; DiltP: NS), maximum rate of rise of left ventricular systolic pressure (ContrP: +22%, p = 0.001; DiltP: +20%, p = 0.03), time constant of relaxation (ContrP: +40%, p = 0.001; DiltP +8%, p = 0.047), stiffness constant of the diastolic pressure-volume relationship (ContrP: +157%, p = 0.0001; DiltP: +132%, p = 0.001), and left ventricular systolic work (ContrP: -35%, p = 0.0001; DiltP -46%, p = 0.0001).(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
J Cardiovasc Pharmacoljournal_title
Journal of cardiovascular pharmacologyauthors
van Dijk RB,Blanksma PK,van Gilst WH,Lie KIdoi
10.1097/00005344-199308000-00007subject
Has Abstractpub_date
1993-08-01 00:00:00pages
215-20issue
2eissn
0160-2446issn
1533-4023journal_volume
22pub_type
杂志文章abstract::Nineteen hypertensive patients were treated with increasing doses of the new angiotensin-converting enzyme inhibitor MK 421. Twenty milligrams orally reduced blood pressure from 180/112 +/- 6.8/3.6 (mean +/- SEM) to 160/100 +/- 6.5/3.3 mm Hg (p less than 0.005) while heart rate increased from 75 +/- 2 to 87 +/- 3 beat...
journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:10.1097/FJC.0b013e318157c0b2
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
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journal_title:Journal of cardiovascular pharmacology
pub_type: 杂志文章
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journal_title:Journal of cardiovascular pharmacology
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