Open AccessRegional myocardial wall thickening response to nitroglycerin. A predictor of myocardial response to aortocoronary bypass surgery.
Author(s) -
James H. Chesebro,
E L Ritman,
Robert L. Frye,
Hugh C. Smith,
Barry D. Rutherford,
Richard E. Fulton,
James R. Pluth,
Donald A. Barnhorst
Publication year - 1978
Publication title -
circulation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.795
H-Index - 607
eISSN - 1524-4539
pISSN - 0009-7322
DOI - 10.1161/01.cir.57.5.952
Subject(s) - medicine , cardiology , ventricle , ejection fraction , myocardial infarction , bypass surgery , nitroglycerin (drug) , surgery , anesthesia , artery , heart failure
The peak rate of systolic wall thickening (p +/- dTw/dt) in regions of the left ventricle (LV) was determined preoperatively by biplane roentgen videometry in 18 patients before and after sublingual administration of nitroglycerin (NTG) and 3-23 months (median 12) after aortocoronary bypass surgery. The regional LV response to NTG was a reliable predictor for postoperative improvement in regional wall dynamics after successful aortocoronary bypass grafting. The ejection fraction response to NTG or surgery will not predict the regional myocardial response to NTG or surgery, nor will the regional response predict the global response. Subendocardial myocardial infarction is another cause of unimproved regional myocardial function after NTG and aortocoronary bypass surgery.
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