Acute myocardial infarction (AMI) in patients over 65 years of age represent more than half of the patients with AMI. Among them, between 60 and 80% represent the first AMI. The objective of this ...study is to evaluate the behavior of AMI in this group of patients. The clinical charts of patients over 65 years of age with ischemic heart disease admitted into the hospital during the past two years, were reviewed. We used the international criteria (clinical, ECG, enzymatic, echocardiographic and scintigraphic studies) for the diagnosis of AMI. Patients with previous AMI were excluded. We included 274 patients (68% males and 32% females). The age varied from 65 to 91 years with an average of 71.7 +/- 5.3 years. Typical symptoms were present in 90.5% and atypical in 9.5% of the cases, being the latest most frequent in those over 75 years of age.
cigarette smoking was present in 60% of the patients, hypertension in 52% and diabetes mellitus in 37%. Both of them were associated in 21%. In 144 cases (52.5%) the MI localization was anterior and in 130 (47.5%) inferior; among them 47 patients (36%) had extension to the right ventricle and 7 (2.5%) had a non Q AMI.
Type I-II VPCs of Bernard Lown were present in 18% and type V 10.2%. Compete AV block in 14.2% (all of them with inferior wall MI); bifascicular block in 55 and mitral insufficiency due to papillary muscle dysfunction in 6.5%.
This study tests the effects of direct constant electrical current (DC), proposed for wound healing stimulation, on epidermal repair in vitro. An in vitro model of human skin keratinocytes (epidermal ...explants) cultured at an air-liquid interface on a de-epidermized human dermis was used. Comparison of the extent of epidermal growth between pairs, where one member of the pair was exposed to DC while other was not, suggests that the applied DC did not increase epidermal growth (migration and proliferation of keratinocytes) nor influence its differentiation. An indirect effect of the DC application, manifested through changed pH in the vicinity of the anode, was found to significantly modify keratinocyte growth in that area.
Fuels from biomass. Energy balance and environmental aspects Graef, M. (Bundesforschungsanstalt fuer Landwirtschaft, Braunschweig (Germany, F.R.). Inst. fuer Biosystemtechnik); Schoedder, F; Vellguth, G
ASAE-Paper (USA),
(1988)
88-6033
Conference Proceeding
Alternative fuels from biomass are investigated with respect to energy and environmental aspects in agricultural production, processing and use in engines. By examples, their qualities are quantified ...by mass and energy balances. The exhaust gas emissions of alternative fuels and Diesel fuel are compared.
PDF