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M A Cherifi

Publications and source records attributed to M A Cherifi.

4 recordsLinked to original sources
PubMed1985

[Pulsed Doppler and bidimensional echocardiography in patent ductus arteriosus].

The classical form of patent ductus arteriosus (PDA) does not usually pose any difficulty in diagnosing. When the auscultatory signs are atypical, for example in the newborn or in cases with pulmonary hypertension, pulsed Doppler echocardiography may be a useful diagnostic aid. This study reports the results of pulsed Doppler examination in PDA. Twenty-four children with a suspected PDA underwent pulsed Doppler examination during 2D echocardiography. This population was divided into 2 groups; Group I: children who underwent catheterisation, and group II: in which catheterisation was not performed. The mean age in Group I was 7 years compared to 50 days in Group II, which mainly comprised newborn and premature babies. Direct visualisation of PDA by 2D echo was attempted in all cases. The search for a PDA by pulsed Doppler was made by positioning the sample volume at the bifurcation of the main pulmonary artery. PDA is associated with turbulent systolo-diastolic flow away from the transducer. Suprasternal and subcostal views were also used. In Group I (13 cases) PDA was directly visualised by 2D echo in 7 children (53 p. 100). By comparison, pulsed Doppler examination diagnosed all 13 cases of PDA; these results were confirmed at catheterisation or surgery. In Group II (11 cases) direct visualisation of PDA was successful in 6 cases (54 p. 100). Pulsed Doppler was non-specific, showing typical flow disturbances in 8 cases and systolic turbulence in 3 cases at the level of bifurcation.(ABSTRACT TRUNCATED AT 250 WORDS)

Child↗
PubMed1984

[Doppler pulse and interventricular communication].

To test the diagnostic accuracy of pulsed Doppler and two-dimensional echocardiography (2D-echo) in ventricular septal defect (VSD), 32 children were studied. All were suspected on clinical grounds to have a VSD. In 17 children, the VSD was proven by cardiac catheterization (group I, mean age 10 years); in 15, only non-invasive investigation was carried out (group II, mean age 1 year). In group I, 2D-echo showed a ventricular septal defect in 14 cases (82%); the Doppler study demonstrated a typical systolic turbulent flow in the right ventricle, in front of the septum, in all cases. In group II, the VSD was visualized by 2D-echo in 11 cases (73%). Pulsed Doppler showed a typical turbulent flow in the right ventricle in all cases. Thus, pulsed Doppler appears more sensitive in detecting ventricular septal defect--especially of small size--than 2D-echo. The diagnostic value of Doppler remains intact when associated cardiac malformations are present and in cases of pulmonary hypertension, as long as the shunt is not reversed.

Adolescent↗
PubMed1981

[Interauricular communication and mitral prolapse. An echocardiographic and angiographic study].

The association of atrial septal defect (ASD) and mitral valve prolapse (MVP) is well known but its precise incidence has not yet been established. Most previous publications have only been angiographic studies and the diagnostic criteria of MVP were, therefore, controversial. In this study, 61 consecutive patients, adults and children, underwent M mode echocardiography and cardiac catheterisation with cineangiography. In the adult group echocardiographic MVP was observed in one of 23 patients with secundum ASD. These findings were confirmed on angiography in addition, four other cases were observed in patients without systolic clicks or pansystolic or late systolic murmurs. MVP was observed in four out of 27 children with secundum ASD on M mode echocardiography and all cases were confirmed at angiography. In contrast to the adult group, no additional cases were demonstrated. Three out of 11 patients with ostium primum defects had MVP at echo and/or angiography, a finding which was probably related to the common atrioventricular canal. Follow-up echocardiography 6 weeks after surgical repair of ASD showed persistent but less marked MVP in all cases. Echocardiographic evidence of MVP was therefore demonstrated in 5 out of 50 patients (10%) with secundum ASD. It was more common in children (15%) than in adults (4%). These results differ from those previously published, probably because of differences in method (use of echo and angiography), diagnostic criteria, size of atrial shunt and the incidence of associated mitral regurgitation. The prevalence of MVP in patients with ASD may have been overestimated in previous publications.

Adolescent↗