Manuela Testaì

The leptin, a new hormone of adipose tissue: clinical findings and perspectives in geriatrics

Obesity has gained a great importance during the last decades, and this fact stimulated numerous studies regarding the genetic causes of this disease. A recently discovered new molecule, called leptin, raised a wide interest. It is a product of the adipocytes, it exerts inhibitory effects on the center of appetite and increases the energy expenditure of the organism. The present study evaluated blood leptin levels in 57 elderly subjects and searched for eventual correlations between this parameter and the age, the body mass index (BMI), the fat body mass (fat%), the waist (W) and hip (H) circumference, as well as the ratio (R) of these latter two values (WHR). Blood leptin levels do not correlate with age, body height and the WHR, but display significant positive correlations with the body weight, the BMI, the fat%, the W, H and WHR. A deeper knowledge on leptin and the correlations of this hormone with other body parameters might be helpful in a better understanding of several pathogenetic mechanisms related to aging and involved in a deterioration of the quality of life in elderly, like multiple atherosclerotic and metabolic diseases (diabetes, dyslipidemias).

Correlation between the bone mass, psychometric performances, and the levels of autonomy and autosufficiency in an elderly Italian population above 80 years of age

This study was aimed at evaluating the correlation between bone mineral density (BMD) and the psychophysical health status in an elderly study population (62 subjects, mean age 84+/-5 years, 21 males and 41 females), institutionalized (Group A) in various structures of Pozzallo, a marine locality of the Ragusa Province in Sicily. BMD was measured by using ultrasonography of the calcanear area (T-score, Z-score, stiffness). The alterations of the cognitive and affective spheres as well as the levels of autonomy and autosufficiency were estimated by means of psychometric scales like mini-mental state examination (MMSE), geriatric depression scale (GDS), activities of daily living (ADL) and instrumental activities of daily living (IADL). Other biological, social and health-related factors, such as age, sex, body weight and height, nutritional and drug-taking habits, physical activity and previous pathologies, were also considered. These variables were compared to those obtained in a similar, but non-institutionalized controls (Group B) of 63 subjects (mean age 85+/-2 years, 27 males and 36 females), being similar in number and age distribution, frequenting the Geriatric Day Center of the same locality. Statistical analysis revealed significant differences between Groups A and B: the BMD was considerably lower, but also the cognitive and affective performances were strongly reduced in Group A. These findings can be attributed to decreased psychosensorial stimuli and lost interest of the patients in Group A, resulting in a lower physical activity, accompanying the depressive state, and may represent the first signs of a decreased intellectual performance, which can later be transformed into dementia. The functional abilities and the levels of autonomy are also reduced, risking the loss of autosufficiency. Also, the drug usage was different in Group A: more sedative-hypnotics and anticoagulants were consumed. As regards the polymorbidities, arterial hypertension and consequent chronic renal failure, hepatopathies and thyreopathies were most frequent, these latter two being more frequent in the Group A.

Management and treatment of decubital ulcers of an elderly population in the assisted sanitary residence of Futura-Viagrande (Catania, Sicily, Italy)

Decubital lesions indicate the gravity of the pathologies of the elderly patients, representing a serious cause of disability and of mortality. The present study was aimed at evaluating the decubital lesions during 1 year of treatment in an assisted sanitary residence (abbreviated as RSA from the Italian name), through observations of the assistential and therapeutical outcomes, aimed at improving the quality of life of the recovered elderly patients. We had 131 patients involved from a total of 308 recovered patients in the RSA. Their mean age was 83.4+/-1.3 years (74 women and 57 men). All cases were treated, considering the actual clinical stages, according to the advanced protocols on the basis of the guidelines of the National Pressure Ulcer Advisory Panel (NPUAP). All patients were evaluated by using the Braden-scale at the start and after 30 days for having a risk for the development of decubital ulcers and also for monitoring the modifications during the therapy, while the improvements were evaluated only clinically, establishing the reduction of the stage of the lesions. A precise analysis of the data revealed a higher prevalence of decubital lesions at the entrance to the RSA, particularly the advanced Grades III and IV (84 patients, 27% of all recovered subjects), compared to those with lower gravity Grades I and II (47 cases, 15% of all recovered subjects). Complete healing was observed only in a few cases (18.0%), mainly in the lower grades. Applying the therapeutic methods and protocols of NPUAP, most of the ulcers displayed an improving tendency. We had only a few mortal cases due to the ulcers (3 deaths of 131 patients), nevertheless, numerous death cases for other causes occurred among the patients, having advanced grades of ulcers (12%). Our data confirm the statement that the decubital ulcers represent the marker of severity of the polypathological state of the fragile elderly patients.

Prevalence of cardiovascular pathologies in elderly population living in an industrialized area, compared to a control population residing in a rural area

The development of cardiovascular pathologies is potentially connected to the surrounding environment, partly due to purely environmental factors, like exposition to pollutions, or anthropological ones, like the type of manual or stressing working activities. The relevant literature has already widely discussed the correlation between the acute and chronic exposition to atmospheric pollutants of different types and the pathogenetic events, such as the atherogenesis, thrombosis, and hypertension, The present study intends to verify this idea on a larger population exposed to different geographical conditions, comparing an agricultural village (Pachino-Siracusa) with an industrialized area (Augusta-Siracusa), both having identical sanitary services of basic importance. On the basis of the specific rates of hospitalizations, we compared the prevalence of cardiovasular pathologies in the resident populations. These studies confirmed the negative influence of the risk factors deriving from the environmental pollutions even on the cardiovascular aging, displaying an increased rate of hospitalization for angina pectoris, myocardial infarction and cardiac arrhytmias in the industrialized population.

The bone mass (BM) and chronic cardiac decompensation (CCD) in an elderly population

This study intended to evaluate the existing correlation between the cardiac compensation and the bone mass, investigating the bone mineral density (BMD) in a population suffering from CCD or chronic heart disease (CHD). We enrolled 171 patients, all over the age of 70, being in the functional N.Y.H.A. Class II (Population A: 85 patients) and in Class III (Population B: 86 patients). All patients underwent an analysis of their cardiac functions using a Doppler echo-cardiographic method measuring the ventricular ejection fraction (VEF), as well as the BMD by means of a computerized bone mineralometric DEXA method, performed in vertebral and femoral measurement sites. Both populations proved to be osteopenic, displaying reduced values of BMD. Higher bone mineral losses were measured in the patients who had more severe cardiac insufficiency. The present data revealed a significant reduction of BMD in the N.Y.H.A. Class III patients, in correlation with the VEF (p<0.001), both in the lumbar vertebral area (p<0.01) and even more in the femoral sites (p<0.001), where a direct correlation exists between BMD and the VEF. On the basis of these findings one can suggest that the actual VEF level has an influence on the bone turnover, reducing the mineral content through various mechanisms of action.

Aging and environmental factors: An estimation of the health state of the elderly population residing in industrialized vs. rural areas

The possibilities have already been discussed that the environment of the living beings may influence the aging process, by causing alterations of the homeostatic capacities to such an extent that definitive pathologies will come into being. Therefore, the aim of the present study was at estimating the effective impact of the environmental pollution on the health state of the subjects residing in highly industrialized areas. For this purpose, we compared 2 populations over the age of 56 years, one from the industrialized areas and the other of agricultural character. The health indicator we utilized was the rate of hospitalization calculated for the main geriatric pathologies. It has been observed that among the residents of highly polluted areas, the hospitalizations were more frequent for the screened pathologies. This finding could be an indicator of an interference of the environmental pollution with the physiological process of aging. One can also suspect that for the cardiovascular pathologies also the factor of physical fatigue being more prevalent in the rural population might play an important role in the high occurrence of this type of diseases. On the basis of these findings we intend to emphasize that the sanitary programs of a given territory should consider in the development and application of a sanitary service the intrinsic characteristics of the given area, when designing the possibly most adequate health care service.

P01-375 - Delirium is marker of frailty? Study in a population over 90-year old recovered in a Sicilian R.S.A.

Introduction Delirium is a Acute Confusional State caused by physiological consequences of a medical disease, and is a predictive index of severity disease and survival time. Methods In this Study we valued, on random pool of 123 patients, the populations of older over 90yr aged recovered (29 patients) in the care of a RSA (Residential Sanitary Assisted in Italy or Nursing Home), compared with population younger afferent in RSA. Results In the populations recovered in RSA studied is evident the prevalence of Delirium in the population over 90 year aged is most common compared to other population studied (44% vs 17%), as major seem to be the Incidence of Delirium in over 90 year population (33,3% vs 12,76%). This data confirm the existence of biological frailty in the very old over 90 year aged. Moreover this data demonstrate reduction of rates Deliriums Incidence compared with prevalences rates in a Setting of Care focused elderly needs as RSA as other Non Geriatric Acute Setting. The 3-Months Mortality is major in the 90 year old compared to non 90 year old population (33,3% vs 18%) confirming a predictive role of Delirium. Conclusions This study showed Delirium is a Marker of Biological Frailty and it is an index predictive inauspicious about the survival of patient. Moreover is marked the RSA - Territorial Structures High Psycho-Geriatrics Contents - performs important role of deliriums prevention by means of removal of the risk factor avoidable and a careful control of causes.