Magnetic Resonance Angiographic Evaluation as a Screening Test for Patients who are Scheduled for Cardiac Surgery.
- Author:
Jong Hui SUH
1
;
Si Young CHOI
;
Yong Hwan KIM
Author Information
1. Department of Thoracic and Cardiovascular Surgery, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Korea. cmccs@naver.com
- Publication Type:Original Article
- Keywords:
Cardiac;
Magnetic resonance imaging;
Brain;
Preoperative care
- MeSH:
Anesthesia;
Angiography;
Arteries;
Brain;
Carotid Arteries;
Central Nervous System;
Female;
Head;
Heart Valve Diseases;
Humans;
Informed Consent;
Critical Care;
Magnetic Resonance Angiography;
Magnetic Resonance Imaging;
Magnetic Resonance Spectroscopy;
Magnetics;
Magnets;
Male;
Mass Screening;
Medical Records;
Myocardial Ischemia;
Neck;
Perfusion;
Preoperative Care;
Prevalence;
Thoracic Surgery
- From:The Korean Journal of Thoracic and Cardiovascular Surgery
2008;41(6):718-723
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: The advances in surgical techniques, anesthesia management, perfusion methodology and postoperative intensive care have markedly decreased the mortality and cardiac morbidity of patients who undergo heart surgery over the past 2 decades. Nevertheless, it is well recognized that cardiac surgery carries a substantial risk for central nervous system complications. This study was conducted to evaluate the prevalence of subclinical cerebrovascular lesions in the head and neck by performing magnetic resonance angiography (MRA), and we investigated the clinical course of patients who had abnormal lesion seen on head and neck MRA. MATERIAL AND METHOD: The subjects were 107 patients (71 men and 36 women ranging in age from 21 to 83 years) who were scheduled for cardiac surgery under nonemergency conditions between October 2005 and June 2008. Informed consent was obtained before the MRA. The carotid arteries, intracranial arteries and brain parenchyme were examined for subclinical cerebrovascular lesions by performing MRA. We reviewed the patients' medical records and MR findings to evaluate the prevalence of neurologically high risk patients and their clinical course. RESULT: The overall prevalence of neurologically high risk patients was 15.7% (17 patients). Among these patients, 11 patients had ischemic heart disease and 6 patients had valvular heart disease. Only 2 patients had a history of cerebrovascular disease. The clinical courses of 14 patients (13.1%) were changed according to their MRI findings. CONCLUSION: The prevalence of subclinical cerebrovascular disease in patients who were scheduled for cardiac surgery was higher than was expected. MR angiography was of value to identify these patients.
