PMID- 7206769
OWN - NLM
STAT- MEDLINE
DCOM- 19810528
LR  - 20221207
IS  - 0022-5223 (Print)
IS  - 0022-5223 (Linking)
VI  - 81
IP  - 4
DP  - 1981 Apr
TI  - The Bjork-Shiley valve: intermediate-term follow-up.
PG  - 602-14
AB  - We evaluated 643 patients surviving aortic, mitral, and aortic and mitral 
      ("double") valve replacement with the Bjork-Shiley prosthesis from 1 to 72 months 
      (median 38 months) postoperatively. Intermediate-term survival rate was similar 
      to that reported for other prosthetic and bioprosthetic devices. Factors 
      unrelated to the device, but related to preoperative patient characteristics or 
      intraoperative or early postoperative events, had important association with late 
      survival rate. These included previous valve replacement, concomitant ventricular 
      aneurysm resection, black race, preoperative functional class, method of 
      myocardial protection, duration of ischemic arrest, ventricular arrhythmias, and 
      double valve replacement. Concomitant coronary artery bypass grafting and the 
      type of valve lesion had no effect on survival prognosis. Freedom from 
      thromboembolism was equal to or superior to other devices, but valve thrombosis 
      occurred 16 times in 15 patients and caused 13 deaths. Improvement in New York 
      Heart Association (NYHA) functional class occurred in the majority of patients. 
      We conclude that the Bjork-Shiley valve is durable and effective, but, as with 
      other devices, is associated with problems of thromboembolism and thrombosis. 
      Intermediate-term survival is related also to non-device, patient-associated 
      characteristics.
FAU - Karp, R B
AU  - Karp RB
FAU - Cyrus, R J
AU  - Cyrus RJ
FAU - Blackstone, E H
AU  - Blackstone EH
FAU - Kirklin, J W
AU  - Kirklin JW
FAU - Kouchoukos, N T
AU  - Kouchoukos NT
FAU - Pacifico, A D
AU  - Pacifico AD
LA  - eng
GR  - HL 13310/HL/NHLBI NIH HHS/United States
PT  - Journal Article
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - United States
TA  - J Thorac Cardiovasc Surg
JT  - The Journal of thoracic and cardiovascular surgery
JID - 0376343
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Alabama
MH  - Aortic Valve/*surgery
MH  - Arrhythmias, Cardiac/complications
MH  - *Bioprosthesis/adverse effects
MH  - Black People
MH  - Child
MH  - Female
MH  - Follow-Up Studies
MH  - Graft Survival
MH  - Heart Aneurysm/complications
MH  - *Heart Valve Prosthesis/adverse effects
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Mitral Valve/*surgery
MH  - Postoperative Complications/diagnosis/*epidemiology
MH  - Thromboembolism/epidemiology
MH  - Thrombosis/*epidemiology
EDAT- 1981/04/01 00:00
MHDA- 1981/04/01 00:01
CRDT- 1981/04/01 00:00
PHST- 1981/04/01 00:00 [pubmed]
PHST- 1981/04/01 00:01 [medline]
PHST- 1981/04/01 00:00 [entrez]
PST - ppublish
SO  - J Thorac Cardiovasc Surg. 1981 Apr;81(4):602-14.