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P Van Zeller

Publications and source records attributed to P Van Zeller.

6 recordsLinked to original sources
PubMed1991

Evaluation of left ventricular function after acute myocardial infarction. Two-dimensional echocardiography versus radionuclide angiography. Study of 50 patients.

Two-dimensional echocardiography and gated blood radionuclide angiography was performed in 50 patients (mean age 51.3 years; 48 men and 2 women) after acute myocardial infarction, before discharge from the hospital. The aim of this study was to compare the wall motion score, determined by two-dimensional echocardiography (2DE), with the ejection fraction obtained by radionuclide angiography (RNA). The correlation between the results obtained by 2DE and RNA was good (r = 0.75; p less than 0.0001). We conclude that 2DE is a powerful diagnostic tool for the evaluation of left ventricular function.

Adult↗
PubMed1990

[Significance of Doppler echocardiography in the diagnosis and management of children with heart disease].

OBJECTIVE: To assess the accuracy of Doppler-echocardiography in the diagnosis and management of the child with heart disease. MATERIAL AND METHODS: Prospective echocardiographic study of 132 consecutive patients aged 1 day to 16 years old with heart disease confirmed by cardiac catheterization (n = 109) or anatomic examination (surgical = 21, necropsy = 2). RESULTS: Of the 258 cardiovascular anomalies diagnosed by cardiac catheterization and anatomical examination, 247 were correctly identified by echocardiography (sensitivity = 96%). There were 11 missed and 4 false positive diagnosis (specificity = 98%), all of them were vascular anomalies. Intracardiac anatomy and segmentary alignment were always correctly identified. The 21 cardiovascular anomalies operated without cardiac catheterization were correctly diagnosed. In 16 patients (12%) a management plan could not be established only on clinical echocardiographic grounds and, in another patient, the plan was incomplete. In the remaining 115 patients (87%) the management plan was correct and complete. CONCLUSIONS: The clinical-echocardiographic study allows: 1) an excellent anatomo-functional evaluation of the heart and great vessels, 2) surgical repair of some selected cardiovascular anomalies without previous cardiac catheterization.

Adolescent↗
PubMed1989

[Echocardiographic evaluation of simple transposition of great vessels subjected to physiologic correction].

The aim of the present study was to evaluate the cardiovascular morphology after Senning's operation for transposition of the great vessels (TGV) using Döppler-echocardiography. The study included 25 patients (pts) aged 17 to 127 months (mean = 60 +/- 27) who were evaluated 6 to 112 months (mean = 42 +/- 27) after surgery. The following parameters were analysed: right (RV) and left ventricular (LV) morphology and function; tricuspid regurgitation and its severity; caval and pulmonary venous pathways and the presence of pulmonary stenosis, its type and severity. All the 25 pts had an abnormal end-systolic interventricular septal (IVS) configuration, with left convexity in 22 (88%) and a flat septum present in 3 (12%). The LV fractional shortening (FS) ranged from 25 to 60% (mean = 41 +/- 10) and the preejection/ejection time ratio (PET/ET) from 0.18 to 0.33 (mean = 0.24 +/- 0.04). The RV mean FS ranged from 23.0 to 32.5% (mean = 26.9 +/- 3.0) and PET/ET from 0.27 to 0.46 (mean = 0.38). The RV wall motion study revealed that the IVS was hypokinetic in 3 pts (12%), akinetic in 19 (76%) and dyskinetic in 3 (12%). Three pts also had an hypokinetic antero-apical segment. TR was detected in 22 (88%) pts being trivial in 16 (64%), mild in 4 (16%) and moderate in 2 (8%). It was always possible to visualise the neo left and right atria as well as the caval-right atrial junctions. No systemic or pulmonary venous obstruction was detected. In 3 pts there was a mild subpulmonic dynamic stenosis related with septal buldging and mitral valve apposition. In conclusion, Döppler-echocardiography can provide accurate information for the follow-up of patients with TGV submitted to physiological correction and it can reduce the number and frequency of late postoperative cardiac catheterization.

Child↗