PMID- 2133726
OWN - NLM
STAT- MEDLINE
DCOM- 19920330
LR  - 20161123
IS  - 0914-5087 (Print)
IS  - 0914-5087 (Linking)
VI  - 20
IP  - 4
DP  - 1990
TI  - [The 19mm St. Jude Medical prosthetic aortic valve evaluated by long-term 
      hemodynamic sequelae].
PG  - 917-28
AB  - To assess the usefulness of the 19 mm St. Jude Medical (SJM) aortic valve 
      prosthesis for cases of small aortic annulus, post-operative evaluations of 
      pressure gradient of the prosthesis (AVR) and left ventricular (LV) function were 
      performed using bicycle ergometric exercise tests. Seven patients who underwent 
      AVR with 19 mm SJM (19 mm group) and eight control subjects whose SJM was greater 
      than 21 mm in diameter were observed. LV function was assessed by the M-mode 
      echocardiography and the pressure gradients of the prosthesis by the continuous 
      wave Doppler echocardiography. The results were as follows: 1. Mean body surface 
      area (BSA) was 1.35 m2 in the 19 mm group and 1.52 m2 in the control group (p 
      less than 0.01). 2. NYHA functional classes improved equally in both groups after 
      surgery. 3. The post-operative cardiac index at rest measured by cardiac 
      catheterization significantly improved in both groups after surgery. 4. Results 
      of the exercise tests: 1) Left ventricular end-systolic volume index (LVESVI) was 
      decreased on exercise in both groups: from 21.3 to 18.0 ml/m2 in the 19 mm group 
      (p less than 0.01) and from 21.5 to 17.0 ml/m2 in the control group (p less than 
      0.01). 2) Ejection fraction and fractional shortening significantly increased in 
      both groups on exercise. 3) The pressure gradients significantly increased on 
      exercise in both groups: from 30.4 to 38.3 mmHg in 19 mm group (p less than 0.01) 
      and from 28.8 to 36.6 mmHg in the control group (p less than 0.01). Although the 
      pressure gradients were greater in the 19 mm group, there were no significant 
      differences between the two groups at rest and on exercise. It was concluded that 
      the 19 mm SJM aortic valve prosthesis was acceptable in size for small aortic 
      annulus in elderly women whose body surface area was less than 1.47 m2.
FAU - Oka, K
AU  - Oka K
AD  - Second Department of Surgery, Medical College of Oita.
FAU - Hadama, T
AU  - Hadama T
FAU - Takasaki, H
AU  - Takasaki H
FAU - Mori, Y
AU  - Mori Y
FAU - Shigemitsu, O
AU  - Shigemitsu O
FAU - Shirabe, J
AU  - Shirabe J
LA  - jpn
PT  - Comparative Study
PT  - Journal Article
PL  - Netherlands
TA  - J Cardiol
JT  - Journal of cardiology
JID - 8804703
SB  - IM
MH  - Adult
MH  - Aortic Valve/physiopathology/surgery
MH  - Aortic Valve Stenosis/diagnostic imaging/*physiopathology/surgery
MH  - Blood Pressure
MH  - Echocardiography
MH  - Echocardiography, Doppler
MH  - Evaluation Studies as Topic
MH  - Exercise Test
MH  - Female
MH  - Heart Valve Prosthesis/*standards
MH  - *Hemodynamics
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Myocardial Contraction
MH  - Stroke Volume
MH  - Ventricular Function, Left
EDAT- 1990/01/01 00:00
MHDA- 1990/01/01 00:01
CRDT- 1990/01/01 00:00
PHST- 1990/01/01 00:00 [pubmed]
PHST- 1990/01/01 00:01 [medline]
PHST- 1990/01/01 00:00 [entrez]
PST - ppublish
SO  - J Cardiol. 1990;20(4):917-28.