title: [A clinical experience of continuous warm blood cardioplegia in two cases of repeat aortic valve surgery].
abstract: The continuous warm blood cardioplegia (CWBC) was used for myocardial protection during aortic cross clamping in two cases of repeat aortic valve operations with good results. Case 1: A 46-year-old man, who underwent an aortic valve replacement because of the rheumatic aortic regurgitation (AR) in 1978, have suffered from orthopnea due to para-prosthetic valvular regurgitation since 1983. He was revealed to have bi-ventricular hypertrophy with myocardial damage on ECG, EF 0.27 on UCG, PCWP 20 mmHg and severe AR on cardiac catheterization. Case 2: A 43-year-old man, who had an aortic valvuloplasty for the non-rheumatic incompetency in 1981, have had a recurrent regurgitation, resulting in left ventricular hypertrophy accompanied by chest pain. Both cases were reoperated upon, having aortic valve replacement with mechanical prosthetic valves through the re-median sternotomy, utilizing CWBC with good recovery. CWBC provides an ideal circumstances for myocardial oxygen utilization during aortic cross clamping and moreover a benefit that needs not the wide dissection of the heart in a redo case because it has no need of topical cooling and ventricular defibrillation following aortic declamping. In conclusion, CWBC is very useful in a repeat aortic valve surgery.
authors.affiliation: Department of Cardiovascular and Thoracic Surgery, Tsuchiura Kyodo General Hospital.
authors.forename: H
authors.initials: H
authors.lastname: Nagaoka
authors.forename: R
authors.initials: R
authors.lastname: In-nami
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: N
authors.initials: N
authors.lastname: Funakoshi
authors.forename: K
authors.initials: K
authors.lastname: Hirooka
authors.forename: A
authors.initials: A
authors.lastname: Fujiwara
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000601:surgery; D001022:Aortic Valve Insufficiency / Q000503:physiopathology / Q000601:surgery*; D001769:Blood; D002314:Cardioplegic Solutions / Q000627:therapeutic use; D004562:Electrocardiography; D006324:Heart Arrest, Induced / Q000379:methods*; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D012086:Reoperation; D012214:Rheumatic Heart Disease / Q000503:physiopathology / Q000601:surgery*
chemical_list: D002314:Cardioplegic Solutions