[Influence of recipient auricular contraction on the left ventricle filling pattern of the transplanted heart studied with pulsed Doppler echocardiography].
OBJECTIVE
to evaluate the influence of recipient atrial contraction (RAC) timing on left ventricular filling pattern (LVFP), assessed by Pulsed Doppler, in orthotopic transplant recipients (OTR).


METHODS
prospective study of OTR.


METHODS
patients (pts) submitted to orthotopic heart transplantation at Hospital de Santa Marta, from April/87 to March/89, in routine evaluation.


METHODS
nine pts, aged 21 to 55 years (mean = 32 +/- 11), 0.5 to 20 (mean = 7.4 +/- 6.9) months post-operatively.


METHODS
in each pt 40 to 60 (mean 52) consecutive cardiac cycles were analysed; five groups (Gr.) were considered, according to RAC (P wave) position in the cardiac cycle: Gr. I--Early systole, GR. II--late systole, Gr. III--early diastole, Gr. IV--late diastole and Gr. V--absent. The following parameters were studied: peak early diastolic mitral flow velocity (Evel), peak late diastolic mitral flow velocity (Avel), ratio Evel/Avel, (E/A) and pressure half time (PHT).


RESULTS
1) Evel and E/A were significantly higher, Avel lower, and PHT shorter, in Gr II and III; 2) Avel was higher and E/A smaller in Gr. IV; 3) no statistically significant differences were found betwenn Gr. I and V, for any of the parameters analised.


CONCLUSIONS
the timing of RAC significantly influences LVFP and it must be considered on Echo-Doppler analysis of diastolic function in OTR.
Soares
R M
RM
Serviço de Cardiologia, Hospital de Santa Marta, Lisboa.
Ferreira
L
L
de Oliveira
M
M
Ferreira
R
R
Quininha
J
J
Figueiredo
L
L
da Cruz
G
G
Salomão
S
S
D000328:Adult; D016275:Atrial Function; D015150:Echocardiography, Doppler; D005260:Female; D016027:Heart Transplantation / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology*; D011446:Prospective Studies; D016276:Ventricular Function
Influência da contracção auricular nativa no padrão de enchimento ventricular esquerdo do coração transplantado estudada por eco-Doppler pulsátil.