PubMed Health⌕ Search

Biomedical subjects

P Rüsch

Publications and source records attributed to P Rüsch.

At least 37 records · Page 2Linked to original sources
PubMed1996

[Chylothorax in a calf].

A case of chylothorax caused by fracture of thoracal vertebrae in a two-day-old Swiss Braunvieh male calf ist described. The clinical symptoms were those of a unilateral, progressive pleural effusion. This was confirmed by radiological and ultrasonographic examinations. Thoracocentesis was performed under ultrasonographic assistance. The liquid obtained from the pleural cavity was turbid and contained chylomicrons, lymphocytes and neutrophilic granulocytes as well as a high concentration of triglycerides. These qualities go together with chylus. Immunohistological examination for BVD virus turned out to be positive. An intrauterine disturbance of osteogenesis due to BVD virus must be considered a possible cause for fracture of vertebrae during delivery.

Animals↗
PubMed1995

[Studies of facilities with increased abortion rates in cattle].

Cases of abortions in cattle were investigated using several different laboratory procedures. The purpose was to collect information on an individual animal and on a herd basis that would allow a correct etiological diagnosis and also the institution of prophylactic measures. The cause of the abortion was diagnosed in 30% of the cases and in 16.3% of the herds. Due to the complexity of the problem, there is no routine diagnostic procedure that can universally be recommended and applied. There was no association between the number of tests performed or the number of herd mates included in the diagnostic work-up and the diagnostic success rate. In order to make a more efficient use of the diagnostic procedures, a better understanding of the mechanisms leading to abortion, on an individual animal basis and on a herd basis, is required.

Abortion, Veterinary↗
PubMed1995

[Epidermolysis bullosa in a calf].

A four-week-old Simmental x Red Holstein calf had lesions of skin and oral mucosa since its first days of life. Where skin or mucosa was exposed to minimal trauma as in oral cavity or over joints, it broke off, forming blisters and erosions. The diagnosis of epidermolysis bullosa, a hereditary disease, was based on clinical and histological findings. Histology pointed to the epidermal form of epidermolysis bullosa, comparable to epidermolysis bullosa simplex in humans.

Animals↗
PubMed1995

[Comparison of vaginal devices CIDR and PRID in ovariectomized cows using hormone analysis].

Plasma concentrations of progesterone and estradiol were compared in 7 ovariectomised cows after application of 2 different intravaginal releasing devices. Peak concentrations of 4-6 ng/ml progesterone were found within 2 hours after application of the devices. From day 2 to day 6 concentrations sank continuously to 2 ng/ml. Progesterone levels of 1-2 ng/ml prevailed from day 6 to the day of removal of the pessaries (day 12 for PRID, day 15 for CIDR). No differences between the two devices were detected. Increased concentrations of estradiol were found for PRID only, reaching maximum levels of 6-7 pg/ml plasma 150 minutes after application.

Administration, Intravaginal↗
PubMed1994

[Clarification and treatment of teat stenosis using endoscopy].

In ten cows ten stenotic teats were endoscopically examined and treated. For this purpose two different methods were performed: Either the endoscopy was performed through the teat canal or through a small incision in the side of the teat. The endoscopy through the teat canal proved to be a simple and practical method. However, the results were not always clear-cut, and a controlled operation was not possible. Endoscopy through a side access is more expensive but has several advantages. It allows a good view on the Fürstenbergsche Rosette, one of the most frequent locations of stenosis. Additionally, controlled operations of the level of the Fürstenbergsche Rosette are possible once a suitable instrument has been introduced through the teat canal. The additional trauma caused by the access hole is a minor problem. All cows examined and treated by this method could be milked without any problems three days after the operation.

Animals↗
PubMed1993

The relationship between cycle stage and results of uterine culture in the mare.

A total of 368 uterine swabs were taken from mares in heat (n = 202) and from mares that were not in heat (n = 166). From 72 of the mares, two swabs were taken; one during either seasonal anoestrus or dioestrus, and one during oestrus. Swabs were taken during anoestrus/dioestrus in 94 other mares and during oestrus in the remaining 130 mares. Bacteriological cultures were done aerobically and classified as negative, insignificant or significant. There was a trend for more positive cytological specimens during oestrus than during anoestrus/dioestrus. The proportions of significant cultures were 12 of 202 (5.9%) in oestrous mares and 14 of 166 (8.4%) in anoestrous/dioestrus mares. Generally more insignificant than negative cultures were obtained during oestrus compared to anoestrus/dioestrus. Seven of 27 cultures that were classified as significant were associated with positive cytological specimens, and only 2 of 16 specimens that yielded pure cultures of E. coli contained neutrophils. Although the culture results did not differ significantly between the cycle stages, oestrus should be the preferred time for uterine examination.

Anestrus↗
PubMed1993

[The blood group distribution in domestic cats in Switzerland].

1014 Swiss housecats have been blood typed. 99.6% had blood group A and 0.4% had blood group B, with no type AB cats detected. The transfusion of blood, or the transfer of antibodies to newborn kittens through colostrum, can cause clinical signs of incompatibility. Because almost all B-cats have high naturally occurring antibody titers against the other blood group, it is the B-cat which is most likely at risk to have incompatibility reactions after a blood transfusion and it is the B-queen which has high antibody titers in the colostrum. In the contrary only about one third of the A-cats have antibodies and usually in low titers. The present investigation demonstrates that the incidence of blood type B in Swiss housecats is very low. Therefore, it can be concluded that there is a minimal risk for incompatibility reactions due to blood transfusions. The same could be said of neonatal isoerythrolysis which is unlikely to occur with the random mating of housecats.

Animals↗
PubMed1993

[Estrus induction in bitches by the administration of PMSG and HCG].

Oestrus was induced in 14 anoestrous beagle bitches by intramuscular injection of PMSG in a dose of 20 I.U./kg once daily on five consecutive days, followed by an additional single i.m. injection of 500 I.U. of hCG on the fifth day. The day on which the first injection was given was counted as Day 1 of the experiment. Between the fourth and sixth day, the bitches began to attract the attention of male dogs and between Days 9 and 15 all bitches came in heat. Matings occurred on two to ten occasions, and six of the bitches conceived. The maximum concentrations of oestradiol in the plasma were in most cases reached on Days 10 or 12 and ranged from 42 to 195 pg/ml. In all cases progesterone concentrations rose sharply between Days 10 and 20. The incretion phase of the corpora lutea was noticeably brief in the non-gravid bitches; in five of these eight bitches, anoestrous values below 2 ng/ml were already obtained before the 65th day of the experiment. These results indicate that the administration of PMSG on five consecutive days supplemented by a final single injection of hCG stimulates the ovaries adequately to afford good prospects of conception. The concentrations of ovarian hormones are discussed.

Animals↗
PubMed1993

[Estradiol and progesterone concentrations in the plasma of nonpregnant bitches during the sexual cycle].

Measurement of the plasma concentrations of oestradiol and progesterone in six bitches on 180 consecutive days showed large fluctuations in the levels of both hormones. The concentrations of oestradiol began to increase 10-12 days before the peak levels of 38.1-89.7 pg/ml were reached, then declined again over the next 3-7 days to or below the minimum measurable value of 9 pg/ml. On the day after the maximum concentrations of oestradiol were recorded, plasma progesterone began to rise rapidly, reaching a plateau after approximately two weeks, then declining gradually after a further two weeks. At the height of the luteal phase, peak levels of 12.6-70.1 ng/ml were measured, although on some days values of less than 1 ng/ml were recorded. The time of occurrence of the initial rise in the progesterone concentration during oestrus presumably indicates that preovulatory luteinization had taken place. During anoestrus the basal concentration of progesterone was generally less than 1 ng/ml and that of oestradiol less than 9 pg/ml. The normal values derived from these observations are discussed with regard to the interpretation of oestradiol and progesterone concentrations in domestic pets under treatment in veterinary practice.

Animals↗
PubMed1992

[Rumen fluid studies in calves with abnormal and normal sucking behavior].

Ruminal fluid and blood samples were analysed in 39 calves with poor suckling behaviour and reduced milk intake (group 1) and in 21 calves with normal suckling behaviour (group 2). The pH level and chloride concentration was determined in the ruminal fluid as well as in the blood. In addition Gram stains and subsequent microscopical examinations of the ruminal fluids were carried out. Blood samples were submitted for blood gas analysis. Notable differences were found between the two groups. The pH level of the ruminal fluid was less than 5.5 in 29 of the 39 calves in group 1 (74.4%); in contrast, the pH was always above 5.5 in group 2. In group 1, 22 calves with a pH of less than 5.5 also revealed a metabolic acidosis of the blood. Mainly gram-positive bacteria were found in the ruminal fluid of 74.4% of the calves in group 1. On the other hand, 76.2% of the calves in group 2 revealed a mainly gram-negative flora. There was no difference in the chloride concentration, either in the blood or in the ruminal fluid and the values showed a high range of scatter.

Animals↗
PubMed1991

[CEA test in domestic animals].

In human cancer treatment, CEA (carcino embryonic antigen) testing is a routine procedure, even though the test is of low sensitivity (40%) and low specificity (70%). Since tests with polyclonal antibodies render no reproducible results with animal sera, the applicability of a recently available monoclonal CEA test designed for human sera was evaluated. We were able to show that the latter test was of supplemental diagnostic value when testing animal sera. The upper normal limit for dogs is 1.65 ng/ml, for cats 2.81 ng/ml, for cows 2.85 ng/ml, for sheep 2.85 ng/ml and for horses 1.61 ng/ml.

Animals↗
PubMed1991

[Use of a low dose prostaglandin F2 alpha in bitches].

The dosage of Prostaglandin F2 alpha used until the present (100, 250 and 1000 micrograms/kg bw), in order to treat pyometra in the bitch, was accompanied with side effects such as salivation, vomiting and diarrhea. In the present work, the efficiency of low dose Prostaglandin (20 micrograms/kg bw) was examined in two different groups of patients: Group 1: Included 9 bitches pregnant for a period of 5-7 weeks duration. Initially the bitches were treated 3 or 4 times per day with Prostaglandin F2 alpha. In these cases abortion took place within 4 to 11 days. Group 2: 12 dogs, suffering from pyometra, were treated 3 times per day with PGF2 alpha for 8 days. In 9 dogs the pyometra resolved and the bitches came in estrus 2-5 months after treatment. 7 bitches have been mated and 6 of these gave birth to healthy litters. During a follow-up period of at least 10 months there has not been a reoccurrence of pyometra. In 3 out of the 12 dogs the uteri were still enlarged after 8 days of treatment. These bitches underwent ovariohysterectomy and a cystic hyperplasia of the endometrium was diagnosed histologically. The low dose (20 micrograms/kg BW) Prostaglandin F2 alpha induced in all dogs the expulsion of the uterine contents. Side effects during the treatment were not observed.

Abortion, Induced↗
PubMed1991

[Cell count and Schalm test results of milk from dairy sheep with healthy udders during the course of a complete lactation].

The somatic cell count (SCC) was determined in 28 milk sheep with normal udder health using the California Mastitis Test (CMT) and a fluoro-opto-electronic cell counter (Partec Counter). The examinations were made at two week intervals throughout the lactation period. 92% of the premilking samples had a negative CMT reaction and in 0.5% of the samples the reaction was distinctly positive. In 95% of the premilking samples the SCC showed less than 200,000/ml and in 95% of the individual total milkings it was less than 350,000/ml. Elevated SCC were common towards the end of lactation when milk yield was low.

Animals↗
PubMed1990

[Effects of partial drying of an udder quarter in cows with teat injuries].

In cows with teat lesions, partial drying-off of the affected mammary quarter is recommended for a period of 3 to 10 days. The other three quarters are normally milked. Partial drying-off reduces the risks of complications due to the daily milking. The slight reduction of milk production, connected with the temporary drying-off a single quarter, is nearly compensated within 4 weeks.

Animals↗
PubMed1989

Treatment of urinary incontinence in dogs by endoscopic injection of Teflon.

Twenty-two dogs with urethral sphincter incompetence, nonresponsive to phenylpropanolamine administration, were treated by urethral submucosal injection of Teflon. Urinary continence was achieved in all dogs for at least 2 months. Urinary incontinence recurred in 14 dogs (64%) and was controlled by a second Teflon injection in 11 of 12 dogs (92%). Minor complications included transient stranguria, with or without hematuria, after 4 of 35 injection procedures. One dog had temporary partial urethral obstruction after treatment.

Animals↗