Search PubMed⌕ Search

Biomedical subjects

M G Russo

Publications and source records attributed to M G Russo.

40 records · Page 3Linked to original sources
PubMed1991

[Left ventricular systolic function in patients surgically treated for atrioventricular septal defect: echocardiographic assessment].

In order to assess the left ventricular systolic function we studied by echo 14 pts (8M, 6F) with complete atrioventricular septal defect (AVSD) who had undergone surgical repair. Mean age was 20.30 +/- 24.63 months, with a follow-up of 52.85 +/- 19.11%; in 6 pts Down syndrome was associated. Particularly, we tried to determine whether the following factors might affect the post-operative left ventricular systolic function: a) Down syndrome; b) residual mild mitral regurgitation; c) age of the surgical repair; d) length of the follow-up. As load-independent indexes of contractility, the left ventricular end systolic stress (LVESS)-circumferential fibre shortening velocity normalized for heart rate (VCFc) relationship and the LVESS/end systolic volume index (ESVI) ratio were chosen. All pts showed normal (mean +/- 2 standard deviations) or slightly higher values of LVESS/VCFc relationship; significantly, the only two pts with lower values had later undergone surgical repair. LVESS/ESVI ratio confirmed an inverse relationship between systolic function and age of the surgical correction (r = -0.75); no other factors (Down syndrome, residual mild mitral regurgitation, length of the follow-up) showed a significant correlation with the post-operative left ventricular systolic function. In conclusion, in our limited population, the age of the surgical repair appears to be the main factor affecting the post surgical left ventricular systolic function in pts with complete AVSD.

Child↗
PubMed1990

Aortopulmonary window coexisting with tetralogy of Fallot: echocardiographic diagnosis.

Aortopulmonary window coexisting with tetralogy of Fallot (TF) was prospectively diagnosed by two-dimensional (2D) echocardiography and Doppler in an 18-month-old boy; the diagnosis was confirmed by cardiac catheterization and angiocardiography. Surgical correction was performed, but the patient died in the operating room from right ventricular dysfunction. The autopsy showed an adequate surgical repair, but the histologic examination of the lungs demonstrated severe pulmonary vascular disease, which was presumed to be the cause of death.

Aortopulmonary Septal Defect↗
PubMedDate not supplied

Exercise capacity in young patients after total repair of Tetralogy of Fallot.

Tetralogy of Fallot is the most common form of cyanotic congenital heart disease. Measurement of physical activity is usually performed as a routine part of the patient's cardiac evaluation. The aim of this study was to examine the exercise performance of young patients operated on for tetralogy of Fallot, assessing the possible influence of known negative prognostic factors related to the surgical repair. The study group comprised 41 consecutive patients (29 male and 12 female, ages 11.2 +/- 3.9 years, range 6-16 years) operated on for tetralogy of Fallot. Patients in the study group were divided in subgroups in relation to the age of surgical intervention (before or after 2 years of life), the surgical approach (combined transatrial/transpulmonary approach or right ventriculotomy), and the presence of aortopulmonary shunts prior to performing total correction. Their data were compared with those of 33 aged-matched asymptomatic control subjects (19 male and 14 female, ages 11.9 +/- 1.3 years, range 11-16 years). Blood pressure and heart rate measured at rest were similar between control and Fallot groups. A normal increase in systolic blood pressure was observed in response to exercise intensity for all subgroups. No significant difference between control and Fallot groups was found under conditions of mild or moderate exercise or for diastolic blood pressure at rest and in response to exercise. Lower maximal heart rate and systolic blood pressure values were recorded in all patients when compared with the control subjects. Significant differences in peak workload were detected between control and Fallot groups and between the control and each subgroup; however, no difference was found between subgroups. In conclusion, despite their very satisfactory clinical status, all patients showed a reduced peak workload, irrespective of the surgical approach, age at surgery, and aortopulmonary shunts prior to performing total correction.

Adolescent↗