[Revascularization of total renal artery occlusion by angioplasty and stent placement]. / Revascularización eficaz de obstrucción total de arterial renal mediante angioplastia y colocación de Stent.

Revascularization of renal artery stenosis for the treatment of hypertension is an established procedure. In selected clinical scenarios, successful revascularization procedures may preserve or restore renal function. We present a 66-year-old man with secundary hypertension and deteriorating renal function caused by bilateral atherosclerotic renal artery disease (complete obstruction of the left renal artery and subocclusive stenosis of the right) in which blood pressure was successfully controlled and renal function improved and maintained steady after bilateral percutaneus transluminal angioplasty and renal artery stenting.

Revascularización eficaz de obstrucción total de arterial renal mediante angioplastia y colocación de Stent / Revascularization of total renal artery occlusion by angioplasty and stent placement

La revascularización de la estenosis de la arteria renal para el tratamiento de la hipertensión es un procedimiento ya admitido. En escenarios clínicos seleccionados, el éxito del procedimiento de revascularización puede mantener o restaurar la función renal. Presentamos el caso clínico de un paciente varón de 66 años con hipertensión arterial secundaria y deterioro de función renal causada por arteriosclerosis bilateral de las arterias renal (obstrucción completa de la arteria renal izquierda y estenosis suboclusiva de la derecha) en el cual la presión arterial fue controlada con éxito y la función renal mejoró después de una angioplastia transluminal percutánea bilateral y colocación de sendos stents de arterias renales

Revascularization of renal artery stenosis for the treatment of hypertension is an established procedure. In selected clinical scenarios, successful revascularization procedures may preserve or restore renal function. We present a 66-year-old man with secundary hypertension and deteriorating renal function caused by bilateral atherosclerotic renal artery disease (complete obstruction of the left renal artery and subocclusive stenosis of the right) in which blood pressure was successfully controlled and renal function improved and maintained steady after bilateral percutaneus transluminal angioplasty and renal artery stenting

Parasites of domestic and wild animals in South Africa. XXXVI. Arthropod parasites of yellow mongooses, Cynictis penicillata (G. Cuvier, 1829).

Eighty yellow mongooses, Cynictis penicillata, from five localities in South Africa were examined for arthropod parasites. Ten ixodid tick species, of which Haemaphysalis zumpti was the most abundant, prevalent and widely distributed, were collected. The mongooses were also infested with two mite species. Echidnophaga gallinacea was the most abundant of the eight flea species collected. It and Ctenocephalides connatus were present at every locality. A single biting louse species, Felicola cynictis, was recovered and it was the most prevalent ectoparasite on the mongooses.

Prevalence of Babesia cynicti infection in three populations of yellow mongooses (Cynictis penicillata) in the Transvaal, South Africa.

Babesia cynicti originally was described from spleen smears of two yellow mongooses (Cynictis penicillata), the main vectors of rabies on the central plateau of South Africa. During a detailed study of the epizootiology of rabies in that area between October 1991 and February 1993, sets of blood smears from three yellow mongoose populations were available for examination. Babesia cynicti was found in 50 of 56 specimens from Rooiwal, north of Pretoria, in 13 of 18 specimens from near Ermelo in the southeastern Transvaal, and in 22 of 23 specimens from Potchefstroom in the western Transvaal.

The role of the yellow mongoose (Cynictis penicillata) in the epidemiology of rabies in South Africa--preliminary results.

Ninety-seven yellow mongooses were captured in six different localities in South Africa and blood specimens for rabies antibody determination as well as brain and salivary glands for virus isolation were collected. No rabies virus or antibody to it was detected in any of the specimens. Parallel to the field study, two experimental infections were undertaken in which yellow mongooses were artificially infected with serial dilutions of two different rabies isolates (one from a dog and the other of mongoose origin) in order to determine the minimal lethal dose (MLD50), clinical signs, duration of illness, course of the disease, presence of virus in the saliva and salivary glands and development of antibodies to rabies virus. A significantly higher proportion of mongooses inoculated with mongoose virus died than did those inoculated with the dog isolate. However, the clinical signs, incubation period, duration of illness and development of antibodies were independent of the dose of the inoculum. The levels of rabies virus in the saliva and salivary glands were high in all clinically affected animals infected with the mongoose isolate but only one of the two mongooses which died following inoculation of the dog isolate contained detectable levels of virus in the salivary glands. Antibodies to rabies were detected only in the terminal stages of clinical disease.

Serological reactions to Leptospira species in buffalo (Syncerus caffer) from the Kruger National Park.

Four hundred and six serum samples from buffalo (Syncerus caffer) were tested for leptospirosis, using the microscopic agglutination test. Seven buffaloes (1.7%) reacted positive and 27 (6.6%) inconclusive. Reactions against L. tarassovi and L. hardjo were the most prevalent.

A serological survey for brucellosis in buffalo (Syncerus caffer) in the Kruger National Park.

A serological investigation was undertaken to determine the prevalence of brucellosis titres in buffalo in the Kruger National park. A total of 406 samples were collected over a period of one year. The rose bengal and the complement fixation tests were used in the investigation as these tests are routinely used for cattle sera and have proved to be reliable. In the females, 12.6% adult, 10.7% sub-adult and 3% juvenile animals reacted positively to the tests. In the males, 15.1% adults, 10.6% sub-adults and 5.3% juveniles were recorded as positive.

The isolation and serology of Brucella melitensis in a flock of goats in central RSA.

Brucella melitensis biotype 1 was isolated in pure culture from the lungs, liver, spleen, kidney, stomach contents, abomasum and brain of an aborted caprine (Boer goat) foetus in the district of Cullinan near Pretoria. The 18 does and 1 ram in the flock of Boer goates were examined serologically by means of the complement fixation (CF) test, using Brucella abortus antigen. Six weeks later they were examined again, using B. abortus as well as B. melitensis biotype 1 antigens. No significant differences were found between the 2 CF tests using B. abortus antigen, or between the results obtained by using the B. abortus and B. melitensis antigens. Twelve goats, showing CF antibody titres, were slaughtered and examined bacteriologically. No relationship was found between the serological and bacteriological results.

The persistence of serological reactions following heifer vaccination with Brucella abortus strain 19 on brucellosis-free farms.

Of 392 heifers vaccinated between 4 and 9.5 months of age and tested at 22 months or older, 3 (0.77%) had titres in the complement fixation test of between 30 and 98 international units per millilitre. The results confirm that persistent serological reactions can be a problem even in brucellosis-free herds. To reduce the incidence of these problem reactors, it is suggested that: in clean herds the age of inoculation be reduced to 3 months of age; the age at first testing be delayed as long as possible, but be done before the heifers are 4 months pregnant, c) consideration be given to reducing the vaccine dose for all heifers from the present 4 to 12 x 10(10) to between 3 x 10(8) and 3 x 10(9) and syringes used for strain 19 vaccination be exclusively reserved for this purpose to prevent the possibility of antigenic residues acting as a booster when used for other vaccinations.

Serological evidence of Q fever in cattle in Malawi.

The serological prevalence of Coxiella burnetii in cattle in Malawi is unknown. Serum samples from 200 Malawian zebu cattle were tested for C. burnetii antibodies using the complement fixation test. The percentage of positive and suspicious titres was 1.5% and 5% respectively.