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Biomedical subjects

A C Azevedo

Publications and source records attributed to A C Azevedo.

16 recordsLinked to original sources

Aortic septal defect and coronary-systemic micro-fistulae.

This report concerns a 32-year-old man, who at the age of 11, had an aortic septal defect with severe pulmonary hypertension. The defect was partially closed and the patient was left with a continuous murmur, an a-v shunt and marked diminution of pulmonary hypertension. Five years later he was asymptomatic, auscultation was normal and no shunt was found at cardiac catheterization. At 32 years of age, although asymptomatic he had abnormal "T" waves, and a selective coronary angiography demonstrated micro-fistulae involving the anterior descending coronary artery. It is suggested that these fistulae may be responsible for the abnormality of ventricular repolarization.

Adolescent

[Phlebotomus of Vargem Grande, a focus of cutaneous leishmaniasis in the State of Rio de Janeiro].

In Vargem Grande, an endemic area of cutaneous leishmaniasis in State of Rio de Janeiro, where Lutzomyia intermedia had been found infected with Leishmania braziliensis, we performed a series of captures of sandflies to increase the knowledge on their behaviour. The following species were found among 8,671 sandflies collected: L. intermedia, L. migonei, L. longipalpis, L. lanei, L. fischeri, L. firmatoi, L. monticola, L. schreiberi, L. whitmani, L. pelloni, L. barrettoi e L. (Pi) sp. Inside houses and outdoors close to the houses, on human bait and in light traps, the predominant species was L. intermedia, followed by L. migonei, both being more numerous between 9 and 11 p.m. than from 6 to 8 p.m. In a plantation, L. migonei was predominant. In simultaneous captures on man and dog as baits, L. intermedia was more frequent on the former, L. migonei on the latter.

Animals

Studies on sandfly fauna (Diptera: Psychodidae) in a foci of cutaneous leishmaniasis in mesquita, Rio de Janeiro State, Brazil.

In a study on vectors of cutaneous leishmaniasis in Mesquita, Rio de Janeiro State, Brazil, eleven species of sandflies were found: Lutzomyia longipalpis, L. fischeri, L. quinquefer, L. intermedia, L. whitmani, L. shannoni, L. cortelezzii, L. edwardsi, L. migonei, L. lanei and L. firmatoi. Lutzomyia intermedia was the predominant species. It was collected indoors but in much higher numbers outdoors, in the close vicinity of houses. In comparative captures it was found to feed more frequently on equines, and less frequently on man and dogs. Studies, using man and animals as baits, showed that blood-feeding started in the evening, and remained stable during the night, until early morning. June, August and October were the months of highest density.

Animals

A study of sandfly species (Diptera: Psychodidae: Phlebotominae) in a focus of cutaneous leishmaniasis in the municipality of Baturité, Ceará, Brazil.

In a study on putative vectors of cutaneous leishmaniasis in Baturité, Ceará State, Brazil, six sandfly species were identified: Lutzomyia longipalpis, L. wellcomei, L. peresi, L. whitmani, L. shannoni and L. migonei. In general L. whitmani and L. migonei were the predominant species. They were collected in periodomiciliary areas and were attracted by man and equines. L. whitmani was the most anthropophilic species. Studies using animals as bait showed that blood-feeding occurs throughout the night. Previously L. whitmani had been found infected with a Leishmania species of the braziliensis complex and L. migonei was infected with peripylarian flagellates. In combination these findings suggest that they may be responsible for periodomestic transmission of cutaneous leishmaniasis.

Animals

[Work situation of physicians graduating from medical residency programs in the State of São Paulo, Brazil].

The authors report on a study conducted to analyze the professional situation of physicians residing in the State of São Paulo, Brazil, five years after completion of a medical residency program. At least 50% of the professionals were interviewed in each specialty. A heavy work load was observed in physicians working both in the metropolitan area of the State capital and in other regions of the State. Male doctors had a higher income than female ones. The latter, however, had a higher proportion working in a single specialty, although 16.8% did not practice in the specialty in which they were trained. The most frequent working environment was a hospital, followed by an ambulatory facility and a private office. The metropolitan area physicians exceeded the remaining in teaching activities and public hospital appointments. They had also a higher tendency to work in a different specialty. This study offers significant information with respect to professional decisions as well as regarding the creation or expansion of residency programs.

Brazil

[An expert clinical diagnosis system for the support of the primary consultation].

In Brazil, as in other Latin American countries, there was a sharp increase in the number of medical schools in the past 20 years. The result was a steep increase in the number of physicians. These professionals are in many cases, however, poorly trained. As a consequence, public, as well as private health services, are exposed to professionals of great diversity of qualification. Few effective solutions have been proposed for this health services management problem. This paper presents a potential solution. It exposes preliminary results of field tests of an Expert System based on the first author's (Rozenbojm) three decades of experiences as a clinician, and medical residency advisor. The system was developed using ESE IBM Expert Systems language and a mainframe hardware. It was designed to support diagnosis based only in anamnesis and physical examination data, without lab or X ray support. Its original purpose was to increase the primary care physician's diagnostic and therapeutic accuracy. An initial test with specialist panels (endocrinology, cardiology, nephrology, G.O., gastroenterology, pediatrics and pneumology) revealed spell out a diagnostic and therapeutic concordance rate over 95 percent (based on real everyday practice cases brought by the specialists). A second test was performed in a private Health Care Network, at primary care level. In this case, concordance rate was over 83 percent in diagnostic aspects and 95 percent in the clinical orientation aspects. This expert system may be very useful for Health Services providing, first encounter standardization, medical graduate basic education and cost containment. The next proposed steps includes transcription of the software for personal computer utilization and an evaluation of its economic impacts.

Adult