| Changes in myocardial oxygen consumption and coronary sinus blood flow before and after resection of left ventricular aneurysm after myocardial infarction. | |
| | |
MedLine Citation:
|
PMID: 3657258 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The patients in this study consisted of eight men who underwent resection of left ventricular aneurysm. Right and left heart catheterization at rest and measurement of coronary sinus blood flow by continuous thermodilution were performed preoperatively and an average of 6 months after the operation. Coronary sinus blood flow decreased significantly from 161 to 118 ml/min and myocardial oxygen consumption decreased significantly from 17.2 to 10.5 ml/min postoperatively. Cardiac index increased postoperatively. Ejection fraction increased from 0.31 to 0.49 and mean velocity of circumferential fiber shortening significantly increased from 0.53 to 1.0 circ/sec postoperatively. Left ventricular end-diastolic volume decreased significantly from 166 to 120 ml/m2 postoperatively. The mean systolic circumferential tension significantly decreased postoperatively. We believe that the decrease in wall tension postoperatively brought about the reduction in myocardial oxygen consumption. Thus the high wall tension and myocardial oxygen demand, present preoperatively, were improved postoperatively, with a resultant lowering of oxygen consumption and equivalent or better left ventricular function. |
| | |
Authors:
|
K Kawachi; S Kitamura; Y Kawashima; C Oyama; K Sakai; H Kobayashi; R Morita |
Related Documents
:
|
23162008 - Isolated nondominant right coronary stenosis: clinical presentation and management. 3161318 - Effects of amrinone on myocardial energetics in severe congestive heart failure. 3296828 - Hypophosphatemia and hypomagnesemia result in cardiovascular dysfunction: theoretical b... 14667688 - The evolution of the helical reservoir pump-oxygenator system at the university of minn... 19533358 - Automatic real time detection of atrial fibrillation. 1877658 - Ischemia and reperfusion-induced arrhythmias in rabbits with chronic heart failure. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of thoracic and cardiovascular surgery Volume: 94 ISSN: 0022-5223 ISO Abbreviation: J. Thorac. Cardiovasc. Surg. Publication Date: 1987 Oct |
Date Detail:
|
Created Date: 1987-11-10 Completed Date: 1987-11-10 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 0376343 Medline TA: J Thorac Cardiovasc Surg Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 566-70 Citation Subset: AIM; IM |
Affiliation:
|
Department of Surgery, Nara Medical College, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Cardiac Output Coronary Circulation* Follow-Up Studies Heart Aneurysm / etiology, surgery* Heart Ventricles / physiopathology Humans Male Middle Aged Myocardial Infarction / complications* Myocardium / metabolism* Oxygen Consumption* Stroke Volume |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: The necessity for tricuspid valve repair can be determined intraoperatively by two-dimensional echoc...
Next Document: Left ventricular aneurysm with predominating congestive heart failure. A comparative study of medica...