Document Detail

Coronariographic significance of heart rate variation related to ischemic episodes in patients undergoing peripheral vascular surgery.
MedLine Citation:
PMID:  1285958     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To evaluate the characteristics of myocardial ischemia during daily life and their coronariographic significance in a group of patients with proven coronary artery disease undergoing peripheral vascular surgery. SETTING: Department of Cardiology--Central Hospital--Lisbon. METHODS: In 14 patients undergoing peripheral vascular surgery and in whom coronariography revealed coronary significative lesions, Holter monitoring was performed during a 24-hour period. Two groups of ischemic episodes were considered: Group A constituted by 44 episodes detected in patients with left main or three vessel disease and group B by 12 episodes detected in patients with one ot two vessel disease. In each group the ischemic parameters were studied. RESULT: The incidence of myocardial ischemia was 64%. Statistically significant differences were observed between group A and B concerning the mean heart rate variation from two minutes before the onset of ST-segment depression to its onset (2.39 bpm vs 8.75 bpm; p < 0.05), from the onset of ST-segment depression to its maximal depression (4.43 bpm vs 16.67 bpm; p < 0.001) and from two minutes before St-segment depression to its maximal depression (6.82 bpm vs 25.4 bpm; p < 0.00001). No differences were found in duration and maximal ST-segment depression. CONCLUSION: Particular characteristics of heart rate variation related to the ischemic episodes seem to have a relation with the severity of coronary artery disease in patients undergoing peripheral vascular surgery.
E Antunes; J Serra; C Catarino; R Ferreira; R M Soares; L Ferreira; J Quininha; R Gracias; J A Rato
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Revista portuguesa de cardiologia : orgão oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology     Volume:  11     ISSN:  0870-2551     ISO Abbreviation:  Rev Port Cardiol     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1993-03-18     Completed Date:  1993-03-18     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8710716     Medline TA:  Rev Port Cardiol     Country:  PORTUGAL    
Other Details:
Languages:  eng     Pagination:  807-10     Citation Subset:  IM    
Department of Cardiology, Santa Marta Hospital, Lisbon, Portugal.
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MeSH Terms
Coronary Angiography*
Electrocardiography, Ambulatory*
Heart Rate / physiology*
Middle Aged
Myocardial Ischemia / complications,  physiopathology*,  radiography*
Peripheral Vascular Diseases / complications,  physiopathology*,  surgery
Preoperative Care

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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