A comparative study of preload-adjusted maximal and peak power: assessment of ventricular performance in clinical practice.

Abstract:

:This study was performed to determine whether preload-adjusted peak power can act as a surrogate for preload-adjusted maximal power in the assessment of left ventricular performance in the clinical setting. Ninety-nine consecutive patients who had undergone elective coronary artery bypass grafting were studied. Fifty-five of these patients were divided into four study groups. Afterload was changed with phenylephrine (n = 12) or glyceryl trinitrate (n = 13), preload was increased with intravenous colloid (n = 18), and contractility was increased with dobutamine (n = 12). There was excellent correlation between the two indices (r = 0.99, y = 1.0168x + 0.0769; p < 0.0001). Manipulation of neither preload nor afterload affected the indices. Both indices increased significantly during dobutamine infusion (p = 0.002). In conclusion, preload-adjusted peak power can be used as a substitute for preload-adjusted maximal power in the determination of ventricular performance in clinical practice.

journal_name

Anaesthesia

journal_title

Anaesthesia

authors

Amà R,Claessens T,Roosens C,Segers P,Verdonck P,Poelaert J

doi

10.1111/j.1365-2044.2004.03974.x

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

35-40

issue

1

eissn

0003-2409

issn

1365-2044

pii

ANA3974

journal_volume

60

pub_type

临床试验,杂志文章,随机对照试验
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    journal_title:Anaesthesia

    pub_type: 临床试验,杂志文章,随机对照试验

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    doi:10.1111/j.1365-2044.1988.tb05703.x

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    journal_title:Anaesthesia

    pub_type: 临床试验,杂志文章,随机对照试验

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    pub_type: 杂志文章

    doi:10.1046/j.1365-2044.2003.02965.x

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    doi:10.1111/j.1365-2044.1984.tb06535.x

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  • Hypotension, subarachnoid block and the elderly patient.

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