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Biomedical subjects

G Chiumello

Publications and source records attributed to G Chiumello.

At least 127 records · Page 7Linked to original sources

[Screening for obesity in a schoolchildren population of the 20th zone of Milan and a nutritional education intervention].

Our study was performed in 1986-'87 and 1987-'88 school years on 12.354 three to eighteen years old students (the whole scholastic population of zone 20 of Milan) in order to apply dietary education on obese subjects. Mean prevalence of obesity was 13.4% with elevated percentages in 11 to 13 years old students (17.9%), with respect to primary (14.1%), high school (12.4%) and nursery school (4.7%). The 36% of obese subjects (more than 50% of adolescents) had already tempted to reduce body weight. Intervention reduced % weight excess (from 33.6 +/- 0.5% to, 28.8 +/- 0.5% after 12 months, p less than 0.001); 67% of obese subjects lost weight and body weight returned within normal limits in 31% of subjects. An educational dietetic strategy may be successful in childhood obesity.

Adolescent↗

[New perspectives on the treatment of growth hormone deficiency].

In the last few years the therapeutic management of GHD children has been improved by the recent synthesis of GH by DNA recombinant technique (rGH). rGH made it possible to overcome the problems of availability and purity of extractive GH, obtaining the same results (in growth velocity) without any information as regards late side effects of such a treatment. GHRH therapy in GHD patients of hypothalamic origin is still on trial and a lot of aspects are to be pointed out (indications to treatment, schedule and route of administration, cost/benefit ration, side effects).

Biotechnology↗

[Osteopenia in premature children: an emerging problem].

Osteopenia of preterm newborns is a condition of undermineralization which arises during the first years of life in very low birth-weight infants. The pathogenesis of disease is multifactorial, even if its main mechanism is the inadequate mineral intake (overall the inadequate phosphorus intake). A wide spectrum of signs and symptoms may be observed ranging from overt rickets to asymptomatic conditions. Diagnosis is usually based on either photon or biochemical findings (hypophosphoremia, hyper calciuria, hypophosphaturia). There is not agreement about the prevention and the treatment and about the benefit of any form of mineral supplementation. The aim of our study is a review of the recent studies concerning the osteopenia of prematurity to focus this new problem.

Bone Diseases, Metabolic↗

Early diagnosis of subclinical complications in insulin dependent diabetic children and adolescents.

212 insulin dependent young diabetics with mean age of 16 yr and mean diabetes duration of 9 yr, have been examined for prevalence of subclinical signs of microvascular disease. Prevalence of retinopathy is increased in subjects of older age when matched for diabetes duration. Subclinical abnormalities of peripheral nervous system, identified by neurophysiological techniques, are present in about 20% of patients. These abnormalities are mainly related to metabolic control as evaluated by HbA1c determination. Albumin excretion rate over 10 mcg/min is observed in about 40% of subjects and is related to increased blood pressure values and poor metabolic control.

Adolescent↗

Empty sella in children with pituitary dwarfism: does it exist?

Empty sella is a descriptive term used to define an anatomoradiological entity characterized by penetration of cerebrospinal fluid (CSF) and subarachnoid space within the sella cavity. To clarify the relationship between empty sella and the endocrinological abnormalities frequently associated in pediatric patients, we examined the hormonal and radiological characteristics of 16 short children with empty sella. In all patients the diagnosis of empty sella was made by computerized tomography (CT) examination. In 5 of 16 patients a magnetic resonance imaging (MRI) study of the sellar region was performed. Growth hormone deficiency (GHD) was found in all 16 patients, hypothyroidism in 6 of 16, hyperprolactinemia in 1 of 16, gonadotropin deficiency in 4 of 11, low cortisol levels in 4 of 13 patients. None of our patients had a CT image of classical empty sella. MRI showed instead the presence of hypoplastic pituitary and disrupted stalk in all patients. In conclusion the endocrinological investigation revealed the presence of isolated GHD in 7 of 16 and multiple hormone defects in 9 of 16 of our patients. This situation is probably not related to a classical empty sella, but depends on a pituitary hypoplasia as the MRI study properly demonstrated.

Adolescent↗

Gynaecomastia and premature thelarche in a schoolchildren population of northern Italy.

The prevalence and incidence of gynaecomastia and thelarche have been studied in pre-school children and school children belonging to different socio-economical classes in two Northern Italian Cities: Milano and Mantova. The children selected underwent three clinical examinations in their own school by the same examinator. The highest prevalence (36.6%) of breast enlargement was observed in nursery children until 2 years of age in Milano. Age and sex specific incidence rates were higher in Milano than in Mantova except in boys 11-14 years old. Assumption of drugs which might induce gynaecomastia thelarche was excluded. Relative risks calculated for veal and chicken must suggest that these are not relevant in the etiology of breast enlargement.

Adolescent↗

Echocardiographic diagnosis of congenital bicuspid aortic valve in gonadal dysgenesis.

Among the gonadal dysgenesis, Turner's syndrome (T.S.) is often associated with cardiovascular malformations, mainly of the aorta. In order to assess noninvasively the incidence of those abnormalities we have evaluated 36 consecutive female patients (pts) with gonadal dysgenesis, mean age 13.3 +/- 2 years, range 3-24 years, without a prior history of cardiovascular disease, by clinical examination chromosomal karyotyping, 12 leads electrocardiography (ECG), and by Time Motion (TM) and Two-Dimensional (2D) Echocardiography (Echo). The following parameters were considered: presence of an auscultatory systolic ejection click (SEC); evidence of a bicuspid aortic valve (BAV); aortic valve stenosis (AVS); aortic valve eccentricity index (AVEI); left ventricle wall hypertrophy (LVWH). 9 pts out 36 (25%) presented a BAV at the 2D Echo; 8 pts out of 36 (22%) presented a SEC, 3/9 (33%) mild AVS, 2/9 (22%) displayed AVEI on TM study and 3/9 (33%) had LVWH. These findings indicate that an isolated BAV is present in a high percentage of pts with gonadal dysgenesis, more than before suspected. Echocardiography shows to be particularly useful and reliable in the assessment of that abnormality.

Adolescent↗