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Ellingsen-Dalskau K, Mejdell CM, Holand T, Ottesen N, Larsen S. Estimation of minimum tolerated milk temperature for feeding dairy calves with small- and large-aperture teat bottles: A complementary dose-response study. J Dairy Sci 2020; 103:10651-10657. [PMID: 32896411 DOI: 10.3168/jds.2020-18460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/24/2020] [Indexed: 11/19/2022]
Abstract
At birth, calves are functionally monogastric and remain so for the first weeks of life. Milk in the rumen may cause indigestion, diarrhea, and reduced growth. Calves are often fed cold milk from a large-aperture teat, but warm milk and sucking behavior are believed to trigger the esophageal reflex. The aim of this study was to use radiography to estimate the lowest milk temperature that can be given to dairy calves at high and low intake rates without causing milk in the rumen. Our hypothesis was that cold milk drunk at high speed would cause insufficient closure of the esophageal groove and hence milk in the rumen. Fifteen Norwegian Red calves, 9 to 27 d of age, weighing between 45.5 and 71.0 kg, were tested according to the response surface pathway design. Each calf was offered 4 L of milk from both a small- (2 mm) and a large-aperture (19 mm) teat. The milk contained barium sulfate, and radiography was applied before, during, and after the milk meal. Following radiography, the calves were returned to a group pen and observed for 2 h using continuous live behavioral observation to detect signs of abdominal pain or discomfort. Starting with a low number of subjects and increasing this number with increasing design levels reduces the sample size without reducing the statistical power. The minimum milk temperature was estimated to be 8°C. No behavioral signs of pain or discomfort were observed, but shivering was noted in several calves drinking 8°C milk. These results strengthen the argument that calves can be fed large milk meals without risk of causing milk in the rumen, even cold milk drunk at high speed.
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Affiliation(s)
- K Ellingsen-Dalskau
- Department of Animal Health and Food Safety, Norwegian Veterinary Institute, Adamstuen, N-0106 Oslo, Norway.
| | - C M Mejdell
- Department of Animal Health and Food Safety, Norwegian Veterinary Institute, Adamstuen, N-0106 Oslo, Norway
| | - T Holand
- Center for Epidemiology and Biostatistics, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Adamstuen, N-0102 Oslo, Norway
| | - N Ottesen
- Institute of Radiology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Adamstuen, N-0102 Oslo, Norway
| | - S Larsen
- Center for Epidemiology and Biostatistics, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Adamstuen, N-0102 Oslo, Norway
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Trangerud C, Bjørgen H, Koppang EO, Grøntvedt RN, Skogmo HK, Ottesen N, Kvellestad A. Vertebral column deformity with curved cross-stitch vertebrae in Norwegian seawater-farmed Atlantic salmon, Salmo salar L. J Fish Dis 2020; 43:379-389. [PMID: 31970816 DOI: 10.1111/jfd.13136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/27/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Pathological changes in the vertebral column of farmed Atlantic salmon in Norway have been reported since the 1990s. Based on the characteristic radiographic findings, we here present a vertebral column deformity named "curved cross-stitch vertebrae" that mainly affects the middle aspect of the vertebral column. Sixty fish, from the west/northwest coast of mid-Norway, were sampled at slaughter and examined by radiography, computed tomography (CT), necropsy, macrophotography, and histology. The vertebral deformities were radiographically graded as mild, moderate, or marked. The main differences between these grades of changes were defined by increased curving of the peripheries of endplates, reduced intervertebral spaces, and vertical displacement of the vertebrae. The curved rims of endplates were located peripheral to a continuous and approximately circular borderline. The CT studies revealed small, multifocal, hypo-attenuating, round to crescent-shaped areas in the notochord, compatible with the presence of gas. Additionally, histology revealed that the axial parts of endplates had circular zones with perforations, through which either notochordal tissue prolapsed into the vertebrae or vascularized fibrochondroid proliferations extended from the vertebrae into the notochord. Inflammation was present in many vertebral bodies. To the best of our knowledge, this is the first report of gas in the notochord of fish.
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Affiliation(s)
- Cathrine Trangerud
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | - Håvard Bjørgen
- Section of Anatomy, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | - Erling Olaf Koppang
- Section of Anatomy, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | | | - Hege Kippenes Skogmo
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | - Nina Ottesen
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
| | - Agnar Kvellestad
- Section of Anatomy, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Oslo, Norway
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Mikkelsen MA, Ottesen N. CT findings in a dog with subacute myopathy and later fibrotic contracture of the infraspinatus muscle. Vet Radiol Ultrasound 2019; 62:E11-E15. [PMID: 30884008 DOI: 10.1111/vru.12727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/29/2018] [Accepted: 01/10/2019] [Indexed: 11/26/2022] Open
Abstract
A 5-year-old Norwegian elkhound was referred due to an acute onset of lameness and persistent shoulder pain over a period of 3 weeks. Computed tomography demonstrated an enlarged, hypoattenuating right infraspinatus muscle with peripheral contrast enhancement and a nonenhancing center, without concurrent lesions in superficial structures or bones. The right infraspinatus muscle showed progressive atrophy on consecutive CT studies. The dog developed clinical symptoms compatible with fibrotic infraspinatus contracture 2 months after the initial presentation, and was treated with infraspinatus tenotomy. Histopathological diagnoses based on intraoperative biopsy samples were fibrotic muscle atrophy and muscle hypertrophy with regeneration.
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Affiliation(s)
- Marthe Aamodt Mikkelsen
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
| | - Nina Ottesen
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Science, Oslo, Norway
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Mikkelsen MA, Ottesen N, Knutsen BH, Søvik Å. Lack of radioprotection knowledge and compliance in Norwegian equine ambulatory practice. Vet Radiol Ultrasound 2019; 60:265-272. [DOI: 10.1111/vru.12704] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 09/21/2018] [Accepted: 10/23/2018] [Indexed: 11/28/2022] Open
Affiliation(s)
- Marthe Aamodt Mikkelsen
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary MedicineNorwegian University of Life Science Oslo Norway
| | - Nina Ottesen
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary MedicineNorwegian University of Life Science Oslo Norway
| | - Bjørn Helge Knutsen
- Department of Radiation ApplicationsNorwegian Radiation Protection Authority Østerås Norway
| | - Åste Søvik
- Department of Companion Animal Clinical Sciences, Faculty of Veterinary MedicineNorwegian University of Life Science Oslo Norway
- Department of Monitoring and ResearchNorwegian Radiation Protection Authority Østerås Norway
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Grosås S, Østevik L, Revold T, Ottesen N, Ropstad E. Uveal myxoid leiomyosarcoma in a horse. Clin Case Rep 2017; 5:1811-1818. [PMID: 29152277 PMCID: PMC5676260 DOI: 10.1002/ccr3.1190] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 08/10/2017] [Accepted: 08/24/2017] [Indexed: 12/21/2022] Open
Abstract
A uveal leiomyosarcoma of a horse is reported. There are few published reports of intraocular tumors in horses. Intraocular tumors challenge animal welfare by causing uveitis, glaucoma, and loss of vision. Knowledge regarding treatment of intraocular tumors with globe preservation is sparse, and further investigations on this topic are required.
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Affiliation(s)
- Siv Grosås
- Department of Companion Animal Clinical SciencesFaculty of Veterinary Medicine and BiosciencesNorwegian University of Life SciencesOsloNorway
| | - Liv Østevik
- Department of Basic Sciences & Aquatic MedicineFaculty of Veterinary Medicine and BiosciencesNorwegian University of Life SciencesOsloNorway
| | - Tobias Revold
- Department of Companion Animal Clinical SciencesFaculty of Veterinary Medicine and BiosciencesNorwegian University of Life SciencesOsloNorway
| | - Nina Ottesen
- Department of Companion Animal Clinical SciencesFaculty of Veterinary Medicine and BiosciencesNorwegian University of Life SciencesOsloNorway
| | - Ernst‐Otto Ropstad
- Department of Companion Animal Clinical SciencesFaculty of Veterinary Medicine and BiosciencesNorwegian University of Life SciencesOsloNorway
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Ellingsen K, Mejdell CM, Ottesen N, Larsen S, Grøndahl AM. The effect of large milk meals on digestive physiology and behaviour in dairy calves. Physiol Behav 2016; 154:169-74. [DOI: 10.1016/j.physbeh.2015.11.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/24/2015] [Accepted: 11/25/2015] [Indexed: 10/22/2022]
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Stigen Ø, Ottesen N, Gamlem H, Åkesson CP. Cervical chondroid chordoma in a standard dachshund: a case report. Acta Vet Scand 2011; 53:55. [PMID: 22017812 PMCID: PMC3224775 DOI: 10.1186/1751-0147-53-55] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Accepted: 10/21/2011] [Indexed: 11/30/2022] Open
Abstract
A ten-year-old male standard dachshund was presented with a history of neck pain and progressive gait disturbances. Following a neurological examination and diagnostic imaging, including CT, a neoplastic lesion involving the third and fourth cervical vertebrae was suspected. The lesion included an extradural mass on the right side of the spinal canal causing a local compression of the cervical cord. Surgery, using a modified dorsal laminectomy procedure, was performed in order to decompress the cervical spinal cord. Histopathological examination of the extradural mass indicated that the tumour was a chondroid chordoma. Following discharge, the quality of life for the dog was very good for a sustained period, but clinical signs recurred at 22 months. The dog was euthanased 25 months post-surgery. On post-mortem examination, a regrowth of neoplastic tissue was found to have infiltrated the bone and spinal cord at C3-C4. This is the first report to show that palliative surgery can offer successful long-lasting treatment of chondroid chordoma of the cervical spine in the dog.
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Sævik BK, Trangerud C, Ottesen N, Sørum H, Eggertsdóttir AV. Causes of lower urinary tract disease in Norwegian cats. J Feline Med Surg 2011; 13:410-7. [PMID: 21440473 DOI: 10.1016/j.jfms.2010.12.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2010] [Revised: 12/20/2010] [Accepted: 12/24/2010] [Indexed: 10/18/2022]
Abstract
A study was made on causes of lower urinary tract disease in cats, and to investigate whether demographic data and factors related to husbandry might influence the occurrence of a particular diagnosis. The study was a prospective, descriptive, and analytical study of primary cases of feline lower urinary tract disease (FLUTD) in Norway. Only cats sampled by cystocentesis were included in the present study. Of the 119 cats included, 28.6% were diagnosed with obstructive FLUTD. The majority of cats were diagnosed with feline idiopathic cystitis (FIC) (55.5%). Urethral plugs were the second most common diagnosis (21.0%), whereas bacterial cystitis and urolithiasis each were diagnosed in 11.8%. Nearly one-third (28.6%) of the cats diagnosed with urolithiasis had significant bacteriuria. Thus, significant bacteriuria was diagnosed in a total of 15.1% of the cats. There were no significant differences in the urine specific gravity, pH and amount of epithelial cells in the urine sediment in the different aetiological categories of FLUTD. There was a higher amount of red blood cells in the urine sediment in cats diagnosed with urethral plugs and urolithiasis, whereas cats with bacterial cystitis and urolithiasis had a higher amount of white blood cells in their sediment. Regarding demographic data and factors related to husbandry, cats diagnosed with FLUTD were more often males and kept strictly indoors, when compared with a 'reference population'.
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Affiliation(s)
- Bente K Sævik
- Department of Companion Animal Clinical Sciences, Norwegian School of Veterinary Science, N-0033 Oslo, Norway.
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Stigen Ø, Ottesen N, Jäderlund KH. Early recurrence of thoracolumbar intervertebral disc extrusion after surgical decompression: a report of three cases. Acta Vet Scand 2010; 52:10. [PMID: 20137085 PMCID: PMC2829575 DOI: 10.1186/1751-0147-52-10] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 02/05/2010] [Indexed: 12/02/2022] Open
Abstract
Thoracolumbar disc extrusions were diagnosed in three chondrodystrophic dogs with paraparesis of up to three days duration. All cases were managed by hemilaminectomy and removal of extruded disc material. In one dog, fenestration of the herniated disc space was also performed. Initially neurological function improved or was unchanged, but from two to ten days postoperatively clinical signs of deterioration became apparent. In all the dogs, recurrence of disc extrusion at the same location as the initial extrusion was diagnosed by computer tomography and at a second surgery abundant disc material was found at the hemilaminectomy site between the dura and an implanted graft of autogenous fat.
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Heiene R, Rumsby G, Ziener M, Dahl SA, Tims C, Teige J, Ottesen N. Chronic kidney disease with three cases of oxalate-like nephrosis in Ragdoll cats. J Feline Med Surg 2009; 11:474-80. [DOI: 10.1016/j.jfms.2008.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2008] [Indexed: 10/21/2022]
Abstract
Two unrelated Ragdoll cat mothers in Norway were found dead from renal disease. The histopathology was consistent with oxalate nephrosis with chronic or acute-on-chronic underlying kidney disease. Both cats had offspring and relatives with signs of urinary tract disease, including a kitten dead with urethral gravel. Eleven living Ragdoll cats, including nine relatives of the dead cats and the male father of a litter with similarly affected animals, were tested for primary hyperoxaluria (PH) type 1 and 2 by urine oxalate and liver enzyme analysis. Renal ultrasound revealed abnormalities in five living cats. One of these was azotaemic at the time of examination and developed terminal kidney disease 9 months later. A diagnosis of PH was excluded in 11 cats tested. The inheritance and aetiological background of the renal disease present in the breed remains unresolved at this point in time.
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Affiliation(s)
- Reidun Heiene
- Department of Companion Animal Clinical Sciences, Norwegian School of Veterinary Science, PO Box 8146 Dep, N-0033 Oslo, Norway
| | - Gill Rumsby
- Department of Clinical Biochemistry, UCL Hospitals, 60 Whitfield Street, London, United Kingdom
| | - Martine Ziener
- Fredrikstad Dyrehospital, Spinneriveien 3, 1632 Gamle Fredrikstad, Norway
| | - Stein A. Dahl
- Hønefoss Dyrehospital, Osloveien 67, 3511 Hønefoss, Norway
| | - Christopher Tims
- Department of Clinical Biochemistry, UCL Hospitals, 60 Whitfield Street, London, United Kingdom
| | - Jon Teige
- Department of Basic Sciences and Aquatic Medicine, Norwegian School of Veterinary Science, Norway
| | - Nina Ottesen
- Department of Companion Animal Clinical Sciences, Norwegian School of Veterinary Science, PO Box 8146 Dep, N-0033 Oslo, Norway
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Rørvik AM, Teige J, Ottesen N, Lingaas F. Clinical, radiographic, and pathologic abnormalities in dogs with multiple epiphyseal dysplasia: 19 cases (1991-2005). J Am Vet Med Assoc 2008; 233:600-6. [PMID: 18710316 DOI: 10.2460/javma.233.4.600] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine clinical, radiographic, and pathologic abnormalities in dogs with multiple epiphyseal dysplasia (MED). DESIGN Retrospective case series. ANIMALS 19 dogs with MED from 10 litters. PROCEDURES The diagnosis was made on the basis of radiographs of the shoulder region and vertebral column. Ten dogs underwent necropsy. RESULTS There were 11 Hygenhund, 6 Dunker, 1 Golden Retriever, and 1 English Pointer. Most dogs were examined because of lameness that developed at 5 to 8 months of age. The most common radiographic abnormality was a deficiency in ossification of the epiphyses, apophyses, and cuboidal bones of the appendicular skeleton and the epiphyses of the vertebrae; ossification of the metaphyses and the diaphyses typically were normal. Disease severity was consistent among littermates, but varied among dogs from different litters. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that MED is a rare condition in dogs characterized by a deficiency in ossification of the epiphyses of the long bones, the epiphyses of the vertebrae, the cuboidal bones, and the apophyses. Radiographic abnormalities were evident in dogs examined as young as 8 weeks of age, and most dogs had developed severe lameness by 5 to 8 months of age. The condition most likely had an autosomal recessive mode of inheritance, although genetic studies of mode of inheritance could not be performed.
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Affiliation(s)
- A Magnus Rørvik
- Radiology Section, Department of Companion Animal Clinical Sciences, Norwegian School of Veterinary Science, N-0033 Oslo, Norway
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Haga HA, Ytrehus B, Rudshaug IJ, Ottesen N. Gastrointestinal stromal tumour and hypoglycemia in a Fjord pony: case report. Acta Vet Scand 2008; 50:9. [PMID: 18485198 PMCID: PMC2397421 DOI: 10.1186/1751-0147-50-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2007] [Accepted: 05/16/2008] [Indexed: 11/26/2022] Open
Abstract
Background Neoplasia may cause hypoglycemia in different species including the horse, but hypoglycemia has not previously been reported in the horse associated with gastrointestinal stromal tumours. Case presentation A case of a gastrointestinal stromal tumour in a Fjord pony with severe recurrent hypoglycemia is presented. The mechanism causing the hypoglycemia was not established. Conclusion This case indicates that a gastrointestinal stromal tumour may cause hypoglycemia also in the horse.
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Abstract
We studied the effects of Narthecium ossifragum on goat kidneys. Twenty-five Norwegian dairy goats, 5 weeks to 4 months of age, were orally dosed with an aqueous extract from N. ossifragum. In experiment 1, we studied microscopic and functional changes in 12 animals that were euthanatized 2, 3, 4, 5, and 6 days after treatment. In experiment 2, we included ultrastructural studies on serial renal biopsies and urine analysis from five extract-treated animals and two controls. In addition, urine samples were collected from four dosed and two control goats. Ultrasonography revealed perirenal and retroperitoneal fluids. Microscopic changes were observed after 6 hours. The findings, most obvious in the inner cortex and the outer medulla, consisted of cytoplasmic vacuolization, interstitial edema, and focal necrosis of tubular epithelial cells. Ultrastructurally, the tubules had loss of microvilli, irregular cytoplasmic vacuolization, mitochondrial swelling with loss of cristae, and irregular but continuous basement membranes even with necrosis. In the glomeruli, there were occasional endothelial damage and shortening and swelling of the foot processes. Peritubular capillaries had breaks in the vessel walls and irregular endothelial cell edema, and the interstitium had marked edema. The functional lesions included elevated serum urea, creatinine, and magnesium concentrations, a slight decrease in serum calcium concentration, elevated urine protein and urine protein-creatinine ratio, and increased activities of urine alkaline phosphatase and gamma glutamyl transferase. Our findings indicate a fast-acting toxic principle inducing damage by both direct toxic and secondary ischemic effects.
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Affiliation(s)
- H Wisløff
- National Veterinary Institute, PO Box 8156 Dep., 0033 Oslo, Norway.
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Aas M, Moe L, Gamlem H, Skretting A, Ottesen N, Bruland OS. Internal radionuclide therapy of primary osteosarcoma in dogs, using 153Sm-ethylene-diamino-tetramethylene-phosphonate (EDTMP). Clin Cancer Res 1999; 5:3148s-3152s. [PMID: 10541356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Fifteen dogs were referred because of a spontaneous bone tumor, lameness, and local pain. The osteosarcoma diagnosis was established by clinical examination, X-ray, bone scintigraphy, and histological examination of biopsy material. The tumors were located in the extremities (n = 12), scapula (n = 1), maxilla (n = 1), and the frontal bone (n = 1). The dogs were given one to four i.v. injections of 153Sm-labeled ethylene-diamino-tetramethylene-phosphonate (153Sm-EDTMP; 36-57 MBq/kg body weight). Three dogs had surgery in addition to the radionuclide treatment. Platelet and WBC counts showed a moderate and transient decrease. No other toxicity was observed. Average tumor doses after a single injection were approximately 20 Gy, considerably higher in some areas because of inhomogeneous uptake. Macroscopically distant metastases were detected in seven dogs at autopsy. One dog died from an intercurrent disease, free of cancer, 5 months after the radionuclide treatment. None of the dogs was cured. The median and mean survival times from the first treatment to death or euthanasia were 150 and 252 days, respectively. Nine of the dogs had obvious pain relief, and five of them seemed pain-free: one for 20 months and one for 48 months. It is concluded that high tumor doses may be deposited in dog osteosarcomas by 153Sm-EDTMP, and the ratio between tumor dose and the dose to surrounding tissues is favorable. The treatment gives pain relief and in some cases tumor growth delay. In combination with surgery, 153Sm-EDTMP may prolong life significantly and possibly cure the disease because the development of metastases are seemingly postponed. No serious side effects were observed.
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Affiliation(s)
- M Aas
- Norwegian Radium Hospital, Oslo.
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