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Biomedical subjects

A Mendez

Publications and source records attributed to A Mendez.

41 records · Page 3Linked to original sources
PubMed1967

Clinical use of a new mitral disc valve.

A disc valve of new design was used successfully for the replacement of the mitral valve in patients with rheumatic mitral valve disease. This valve would appear to have the following advantages over the mitral ball valve prosthesis:* Lower left atrial pressure after replacement.* Elimination of the hazard of left ventricular outflow tract obstruction with mitral valve replacement.* Decreased incidence of thromboembolization.* Abolition of possibility of ventricular septal irritation. Despite the better outlook for this valve compared with the ball valve for mitral valve substitution, the mitral valve should always be repaired whenever feasible. Repair is possible in the majority of patients.

Adult↗
PubMedDate not supplied

Chronic bronchopulmonary aspergillosis in a horse with Cushing's syndrome.

An atypical case of chronic equine bronchopulmonary aspergillosis with an unusual hyphal morphology was diagnosed in a horse with Cushing's syndrome. Because of the hyphal localization in chronic ectatic bronchi and bronchioles, and juxtabronchiolar processes, the observed type of aspergillosis is similar to 'saprophytic bronchopulmonary aspergillosis' or 'semi-invasive pulmonary aspergillosis' in humans. The aetiological diagnosis of aspergillosis was accomplished by the application of a panel of monospecific polyclonal and monoclonal antibodies in immunohistochemical techniques.

Animals↗
PubMedDate not supplied

[Endoscopic-histopathological correlation in gastric lymphoma diagnosis: the experience of an oncologic institute].

Among the Gastric Lymphoma' chief features are the varied endoscopic appearances and the difficulty for its conventional bioptic diagnosis. In order to focusing on this problem we analyzed 15 years of experience on this matter at the "Luis Razetti" Oncological Institute. 10 cases were morphologicaly classified as follow: a) Exophytic type 5/50%. The most difficult morphology for its endoscopic diagnosis was the infiltrative type, in its large gastric folds category 2/20%, yielding a 33% of bening diagnosis. Histopathologicaly a 66% of bening diagnosis was obtained and a 33% of uncertain diagnosis. The exophytic type in its erosive protruding mass category was the second most difficult morphology fot both endoscopic and histopathologic diagnosis. When the last two categories were associated with ulceration, the malignant diagnosis increased. 40 of the cases were operated on without preoperative histological diagnosis. All the cases were operated on without preoperative histological diagnosis. All the cases corresponded with Large cells diffuse type of Non Hodgkin's Lymphoma, a diagnosis reached in only one opportunity by endoscopic biopsy. No correlation between tumoral morphology and intraparietal growth was found. 3 patients survived for more than 1 years. It can be concluded that video endoscopic methods could help to improve the endoscopic knowledge in gastric lymphoma diagnosis, while polipectomy snare biopsy, dye methods like Indigo Carmin and special techniques like mucosectomy could help to improve the histologic diagnosis, because conventional biopsy provides small and superficial samples.

Adolescent↗