PMID- 1417351
OWN - NLM
STAT- MEDLINE
DCOM- 19921117
LR  - 20061115
IS  - 0020-3785 (Print)
VI  - 62
IP  - 4
DP  - 1992 Jul-Aug
TI  - [Late results of mitral valve replacement in 155 subjects under 16 years of age. 
      Comparative study with 4 prosthesis].
PG  - 333-8
AB  - We followed 155 children aged 6 to 16 years who underwent mitral valve 
      replacement for rheumatic heart disease. Group I included 74 patients with 
      Starr-Edwards prostheses and the mean follow-up period was 13 years. Group II was 
      formed by 36 patients with Bjork-Shiley prostheses and a mean follow-up of 7.5 
      years. Group III consisted of 31 children with dura mater bioprostheses and a 
      mean follow-up of 5.1 years. Finally, group IV included 14 patients followed a 
      mean period of 4.9 years with Hancock xenografts. The four groups of patients 
      were comparable before surgery. The criteria of the New York Heart Association 
      (NYHA) were used to evaluate all patients before and 12 months after surgery. All 
      patients with mechanical prostheses received anticoagulant therapy with 
      acenocumarol from the first postoperative day. The incidence of complications 
      such as thromboembolism, infective endocarditis, prosthetic dysfunction and death 
      were determined at the end of the follow-up. The Fisher's exact test was used for 
      nonparametric analysis and the two-tailed Student's T test for parametric 
      results. All but two patients improved their NYHA clinical status after surgery 
      (p less than 0.0001). Forty eight patients with mechanical prostheses were 
      catheterized 1 to 7 years after the operation. The mean pulmonary arterial 
      systolic pressure was reduced from 58 mmHg to 30 mmHg (p less than 0.001) and the 
      mean pulmonary arterial wedge pressure decreased from 22 mmHg to 11 mmHg (p less 
      than 0.001). There were no significant differences between the groups with 
      mechanical and tissue prostheses in the incidence of thromboembolism and 
      infective endocarditis.(ABSTRACT TRUNCATED AT 250 WORDS)
FAU - Zabal, C
AU  - Zabal C
AD  - Instituto Nacional de Cardiologia Ignacio Chavez, Mexico, D.F.
FAU - Attie, F
AU  - Attie F
FAU - Barragan, R
AU  - Barragan R
FAU - Buendia, A
AU  - Buendia A
FAU - Pena Duque, M
AU  - Pena Duque M
LA  - spa
PT  - Comparative Study
PT  - English Abstract
PT  - Journal Article
TT  - Resultado tardio del cambio valvular mitral en 155 sujetos menores de 16 anos. 
      Estudio comparativo con cuatro protesis.
PL  - Mexico
TA  - Arch Inst Cardiol Mex
JT  - Archivos del Instituto de Cardiologia de Mexico
JID - 0400463
SB  - IM
MH  - Adolescent
MH  - *Bioprosthesis
MH  - Child
MH  - *Heart Valve Prosthesis
MH  - Humans
MH  - Mitral Valve
MH  - Postoperative Care
MH  - *Postoperative Complications/mortality
MH  - Preoperative Care
MH  - Prosthesis Failure
MH  - Reoperation
MH  - Time Factors
EDAT- 1992/07/01 00:00
MHDA- 1992/07/01 00:01
CRDT- 1992/07/01 00:00
PHST- 1992/07/01 00:00 [pubmed]
PHST- 1992/07/01 00:01 [medline]
PHST- 1992/07/01 00:00 [entrez]
PST - ppublish
SO  - Arch Inst Cardiol Mex. 1992 Jul-Aug;62(4):333-8.