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Biomedical subjects

R Ricciotti

Publications and source records attributed to R Ricciotti.

9 recordsLinked to original sources

Relationships between obesity and ischaemic heart disease in type II diabetic subjects homozygous for the apoprotein E3 allele.

The purpose of the present study was to evaluate the influence of obesity on ischaemic heart disease frequency in a well-documented type II diabetic population. To eliminate one of the possible sources of variability for plasma lipid concentrations, only subjects showing the apoprotein E phenotype, indicative of homozygosity for the epsilon 3 allele (i.e. an E3/E3 genotype), have been recruited. A larger prevalence of ischaemic heart disease was noticed among obese patients as compared to non-obese or merely overweight subjects according to a higher frequency of hypertension and to higher triglyceride concentrations. These results corroborate the hypothesis of a common pathogenesis of the major cardiovascular risk factors.

Alleles

[Postoperative constrictive pericarditis].

Seven cases of postoperative constrictive pericarditis (PCP) were discovered in a retrospective study of patients given heart surgery in a hospital receiving patients from all over Italy in 1970-85. Five of those patients had received surgery for chronic rheumatic heart disease, 2 for congenital heart defects. Four had received a second heart operation before the pericardial condition was recognised. All were females and all presented systemic venous hypertension (one of them only after acute doses of physiological solution) with thickening of the pericardial layers revealed by sonography. In six cases the electrocardiographic ventricular complexes were normal or increased in amplitude and the heart/chest ratio was greater than 0.55. Pericardial knock was masked by natural or artificial atrioventricular valve opening noises in 6 cases. In one case only there were pericardial calcifications or signs of an earlier postpericardiotomy syndrome. The haemodynamic investigation revealed signs of ventricular diastolic constriction in 6 patients. Three patients died from complications of cardiac cirrhosis: 2 of them had previously received partial pericardiectomy. Another two, given the same operation, preserved a reasonable functional capacity 5 and 10 years after the pericardiectomy. One patient in NYHA functional class III has so far refused haemodynamic assessment (and surgical treatment) of the pericardial disease. Finally, the last patient complains only of attacks of heart palpitation caused by atrial flutter and controlled by antiarrhythmic treatment.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult

[Aortic coarctation surgically treated in the 1st year of life. Results in 36 cases].

Thirty-six infants under one year of age underwent surgical repair of coarctation of the aorta between 1968 and 1983 in our institution. Coarctation was isolated or associated to a patent ductus arteriosus in sixteen cases, while in twenty it was associated with significant intracardiac disease. Twenty-nine patients were operated on in the first three months of life and in twenty a severe heart failure was present before the operation. Nine patients (25%) died while in the hospital: all of them were less than three months of age and all but one were affected by major intracardiac anomalies and severe heart failure. Surgical repair was by subclavian flap aortoplasty in twenty-nine cases, resection with end-to-end anastomosis in three, patch aortoplasty in three and Blalock-Park anastomosis in one. Operative mortality was unaffected by the surgical technique. The surviving children were followed-up for 30 +/- 7 months; one late death occurred suddenly, two months after the repair of a ventricular septal defect. An arm/leg pressure gradient, indicative of recoarctation, was detected in five cases: only one had been repaired by the subclavian flap technique, while the others were the only survivors of the end-to-end anastomosis and patch aortoplasty group. Subclavian flap aortoplasty is suggested as the operation of choice for coarctation of the aorta in the first year of life.

Aortic Coarctation

[Idiopathic scoliosis in a student population].

The etiology of idiopathic thoracic scoliosis is a relevant problem in the fields of scholastic medicine and orthopaedics. This disease affects a population of pre-adolescent between ten and fifteen years of age. This study is based on our observations within a population of junior high school students in a suburban town of central Italy. Our data are based on clinical examinations, and the analysis of biophysical and environmental factors evidentiate the genetic and hereditary factors that are of prime importance in the pathogenesis of thoracic idiopathic scoliosis. It's our goal, to inform the scholastic doctor, the orthopaedist, the pediatrician and the internist on the main clinical and evolutionary aspects of thoracic idiopathic scoliosis and other related vertebral pathology. We therefore believe, that a good diagnosis should be based on a thorough genetic and clinical examination; not to mention an examination of vertebral bone morphology in order to exclude other forms of thoracic scoliosis.

Adolescent