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Radionuclide study of mid-term left ventricular function after endoventricular circular patch plasty.

Hiromichi Fujii·Hirokazu Ohashi·Yasushi Tsutsumi·Takahiro Kawai·Kenji Iino·Masateru Onaka
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Abstract

OBJECTIVE: Although the early result of endoventricular circular patch plasty (EVCPP) has been reported, few are seen about the long-term results. We studied left ventricular (LV) function in the early and mid-term periods after EVCPP with electrocardiographic-gated single photon emission computed tomography (Gated SPECT). METHODS: Consecutive 14 patients with LV asynergy after myocardial infarction, who had the EVCPP procedure, were studied by Gated SPECT. Mean age of patients was 67+/-10 years. Gated SPECT images were obtained and LV end-diastolic volume index (EDVI), LV end-systolic volume index (ESVI) and ejection fraction (EF) were studied with QGS(+) program. Gated SPECT study was performed before surgery, early (23 days) and mid-term periods (32 months) after surgery. RESULTS: EDVI changed significantly from preoperative value to early postoperative value (107+/-39 to 72+/-37 ml/m(2), P < 0.01). There was no significant difference between early and mid-term postoperative values. ESVI also changed significantly from preoperative value to early postoperative value, and from early value to mid-term postoperative value (78+/-37 to 51+/-34 to 47+/-35 ml/m(2), P < 0.05, respectively). EF increased significantly from preoperative value to early postoperative value, and from early value to mid-term postoperative value (30+/-10 to 35+/-13 to 45+/-18%, P < 0.05, respectively). CONCLUSIONS: Direct influence of EVCPP brought significant improvement of LV function in early period. Further decrease of ESVI and increase of EF were noticed from early period to mid-term period. This result suggest that the effect of EVCPP sustains long and yields reverse LV remodeling.

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AgedCardiopulmonary BypassEndocardiumFemaleFollow-Up StudiesHeart AneurysmHeart VentriclesHumansMaleMiddle AgedMyocardial InfarctionPericardiumPostoperative PeriodStroke VolumeTomography, Emission-Computed, Single-PhotonTreatment OutcomeVentricular Function, LeftEvaluation StudyJournal Article

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Hiromichi Fujii, Hirokazu Ohashi, Yasushi Tsutsumi, Takahiro Kawai, Kenji Iino, Masateru Onaka. 2004. Radionuclide study of mid-term left ventricular function after endoventricular circular patch plasty.. https://doi.org/10.1016/j.ejcts.2004.03.008

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