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George E Moore - One of the best experts on this subject based on the ideXlab platform.
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A time series model of the occurrence of Gastric Dilatation-Volvulus in a population of dogs
BMC Veterinary Research, 2009Co-Authors: Michael Levine, George E MooreAbstract:Background Gastric Dilatation-Volvulus (GDV) is a life-threatening condition of mammals, with increased risk in large breed dogs. The study of its etiological factors is difficult due to the variety of possible living conditions. The association between meteorological events and the occurrence of GDV has been postulated but remains unclear. This study introduces the binary time series approach to the investigation of the possible meteorological risk factors for GDV. The data collected in a population of high-risk working dogs in Texas was used. Results Minimum and maximum daily atmospheric pressure on the day of GDV event and the maximum daily atmospheric pressure on the day before the GDV event were positively associated with the probability of GDV. All of the odds/multiplicative factors of a day being GDV day were interpreted conditionally on the past GDV occurrences. There was minimal difference between the binary and Poisson general linear models. Conclusion Time series modeling provided a novel method for evaluating the association between meteorological variables and GDV in a large population of dogs. Appropriate application of this method was enhanced by a common environment for the dogs and availability of meteorological data. The potential interaction between weather changes and patient risk factors for GDV deserves further investigation.
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A time series model of the occurrence of Gastric Dilatation-Volvulus in a population of dogs.
BMC veterinary research, 2009Co-Authors: Michael Levine, George E MooreAbstract:Background Gastric Dilatation-Volvulus (GDV) is a life-threatening condition of mammals, with increased risk in large breed dogs. The study of its etiological factors is difficult due to the variety of possible living conditions. The association between meteorological events and the occurrence of GDV has been postulated but remains unclear. This study introduces the binary time series approach to the investigation of the possible meteorological risk factors for GDV. The data collected in a population of high-risk working dogs in Texas was used.
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Meteorological influence on the occurrence of Gastric Dilatation-Volvulus in military working dogs in Texas
International Journal of Biometeorology, 2008Co-Authors: George E Moore, Michael Levine, Johnna D. Anderson, Robert J. TrappAbstract:Gastric Dilatation-Volvulus (GDV) is a life-threatening condition in dogs and other species in which the stomach dilates and rotates on itself. The etiology of the disease is multi-factorial, but explicit precipitating causes are unknown. This study sought to determine if there was a significant association between changes in hourly-measured temperature and/or atmospheric pressure and the occurrence of GDV in the population of high-risk working dogs in Texas. The odds of a day being a GDV day, given certain temperature and atmospheric pressure conditions for that day or the day before, was estimated using logistic regression models. There were 57 days in which GDV(s) occurred, representing 2.60% of the days in the 6-year study period. The months of November, December, and January collectively accounted for almost half (47%) of all cases. Disease risk was negatively associated with daily maximum temperature. An increased risk of GDV was weakly associated with the occurrence of large hourly drops in temperature that day and of higher minimum barometric pressure that day and the day before GDV occurrence, but extreme changes were not predictive of the disease.
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Relationship between incidence of Gastric Dilatation-Volvulus and biometeorologic events in a population of military working dogs.
American journal of veterinary research, 2002Co-Authors: John R. Herbold, George E Moore, Terry L. Gosch, B. Sue BellAbstract:Objective—To calculate the monthly incidence of Gastric Dilatation-Volvulus (GDV) in a population of military working dogs during a 5-year period and determine whether there was an association with synoptic climatologic indices. Sample Population—Medical records of all military working dogs housed at Lackland Air Force Base,Tex, from Jan 1, 1993 to Dec 31, 1997. Procedure—Confirmed cases of GDV were identified from evaluation of medical records and used to calculate incidence of GDV. Factor analysis of local climatologic data was used to classify each day into 1 of 8 meteorologically homogeneous types of days for this location. Occurrence of GDV was compared with frequency of occurrence of synoptic climatologic days. Results—48 cases of GDV were identified from January 1993 through December 1997. Mean monthly incidence was 2.5 cases/1,000 dogs at risk (range, 0 to 18.5 cases/1,000 dogs; median, 2.5 cases/1,000 dogs). A seasonal increase in incidence of GDV was detected, because half of the episodes were d...
Michael Levine - One of the best experts on this subject based on the ideXlab platform.
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A time series model of the occurrence of Gastric Dilatation-Volvulus in a population of dogs
BMC Veterinary Research, 2009Co-Authors: Michael Levine, George E MooreAbstract:Background Gastric Dilatation-Volvulus (GDV) is a life-threatening condition of mammals, with increased risk in large breed dogs. The study of its etiological factors is difficult due to the variety of possible living conditions. The association between meteorological events and the occurrence of GDV has been postulated but remains unclear. This study introduces the binary time series approach to the investigation of the possible meteorological risk factors for GDV. The data collected in a population of high-risk working dogs in Texas was used. Results Minimum and maximum daily atmospheric pressure on the day of GDV event and the maximum daily atmospheric pressure on the day before the GDV event were positively associated with the probability of GDV. All of the odds/multiplicative factors of a day being GDV day were interpreted conditionally on the past GDV occurrences. There was minimal difference between the binary and Poisson general linear models. Conclusion Time series modeling provided a novel method for evaluating the association between meteorological variables and GDV in a large population of dogs. Appropriate application of this method was enhanced by a common environment for the dogs and availability of meteorological data. The potential interaction between weather changes and patient risk factors for GDV deserves further investigation.
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A time series model of the occurrence of Gastric Dilatation-Volvulus in a population of dogs.
BMC veterinary research, 2009Co-Authors: Michael Levine, George E MooreAbstract:Background Gastric Dilatation-Volvulus (GDV) is a life-threatening condition of mammals, with increased risk in large breed dogs. The study of its etiological factors is difficult due to the variety of possible living conditions. The association between meteorological events and the occurrence of GDV has been postulated but remains unclear. This study introduces the binary time series approach to the investigation of the possible meteorological risk factors for GDV. The data collected in a population of high-risk working dogs in Texas was used.
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Meteorological influence on the occurrence of Gastric Dilatation-Volvulus in military working dogs in Texas
International Journal of Biometeorology, 2008Co-Authors: George E Moore, Michael Levine, Johnna D. Anderson, Robert J. TrappAbstract:Gastric Dilatation-Volvulus (GDV) is a life-threatening condition in dogs and other species in which the stomach dilates and rotates on itself. The etiology of the disease is multi-factorial, but explicit precipitating causes are unknown. This study sought to determine if there was a significant association between changes in hourly-measured temperature and/or atmospheric pressure and the occurrence of GDV in the population of high-risk working dogs in Texas. The odds of a day being a GDV day, given certain temperature and atmospheric pressure conditions for that day or the day before, was estimated using logistic regression models. There were 57 days in which GDV(s) occurred, representing 2.60% of the days in the 6-year study period. The months of November, December, and January collectively accounted for almost half (47%) of all cases. Disease risk was negatively associated with daily maximum temperature. An increased risk of GDV was weakly associated with the occurrence of large hourly drops in temperature that day and of higher minimum barometric pressure that day and the day before GDV occurrence, but extreme changes were not predictive of the disease.
Kenneth J. Drobatz - One of the best experts on this subject based on the ideXlab platform.
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Pneumatosis in canine Gastric Dilatation-Volvulus syndrome.
Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology As, 2004Co-Authors: Anthony J. Fischetti, H. Mark Saunders, Kenneth J. DrobatzAbstract:Retrospectively, 243 dogs with radiographic evidence of Gastric Dilatation-Volvulus (GDV) were studied for radiographic signs of pneumatosis (intramural gas), pneumoperitoneum, splenomegaly, and severity of Gastric distention. The sensitivity, specificity, and predictive value of these imaging signs as predictors of Gastric wall necrosis, as determined by visual inspection at surgery or necropsy, were determined. The sensitivity and specificity of Gastric pneumatosis were 14.1% and 92.7%, respectively. The prevalence of Gastric wall necrosis was 26.6%. The positive and negative predictive values of Gastric pneumatosis for predicting Gastric necrosis were 40.9% and 74.9%, respectively. Gastric pneumatosis and pneumoperitoneum were identified together in four dogs. Pneumoperitoneum, either alone or in conjunction with pneumatosis, yielded similar results as a test for Gastric necrosis. Splenomegaly and severity of Gastric distention were insensitive and nonspecific for Gastric wall necrosis. Splenomegaly did not predict the need for splenectomy at surgery. Although pneumatosis and pneumoperitoneum are relatively specific signs of Gastric wall necrosis, the utility of these signs as a test for Gastric necrosis is limited in clinical practice. The significance of pneumatosis should be taken into consideration with previous treatments for Gastric decompression, as percutaneous Gastric trocharization or oroGastric intubation may increase the number of false-positive results.
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Plasma lactate concentration as a predictor of Gastric necrosis and survival among dogs with Gastric Dilatation-Volvulus: 102 cases (1995-1998).
Journal of the American Veterinary Medical Association, 1999Co-Authors: E De Papp, Kenneth J. Drobatz, Dez HughesAbstract:Objective To determine relationships between plasma lactate concentration and Gastric necrosis and between plasma lactate concentration and outcome for dogs with Gastric Dilatation-Volvulus. Design Retrospective study. Animals 102 dogs. Procedure Information on signalment, history, plasma lactate concentration, medical and surgical treatment, cost of hospitalization, and outcome was retrieved from medical records. Results 69 of 70 (99%) dogs with plasma lactate concentration 6.0 mmol/L (1 dog euthanatized for economic reasons was not included). Gastric necrosis was identified in 38 (37%) dogs. Median plasma lactate concentration in dogs with Gastric necrosis (6.6 mmol/L) was significantly higher than concentration in dogs without Gastric necrosis (3.3 mmol/L). Specificity and sensitivity of using plasma lactate concentration (with a cutoff of 6.0 mmol/L) to predict which dogs had Gastric necrosis were 88 and 61%, respectively. Sixty-two of 63 (98%) dogs without Gastric necrosis survived, compared with 25 of 38 (66%) dogs with Gastric necrosis. Conclusions and clinical relevance Preoperative plasma lactate concentration was a good predictor of Gastric necrosis and outcome for dogs with GDV. Preoperative measurement of plasma lactate concentration may assist in determining prognosis of dogs with GDV.
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Canine Gastric Dilatation/Volvulus syndrome in a veterinary critical care unit: 295 cases (1986-1992).
Journal of the American Veterinary Medical Association, 1995Co-Authors: Daniel J. Brockman, Robert J. Washabau, Kenneth J. DrobatzAbstract:Two hundred ninety-five case records were included in an analysis of dogs treated by a standardized protocol for Gastric Dilatation/Volvulus syndrome between 1986 and 1992. A breed predisposition was demonstrated for Great Danes, German Shepherd Dogs, large mixed-breed dogs, and Standard Poodles. One hundred and ninety-three dogs had Gastric Dilatation and Volvulus (GDV) confirmed at surgery, 66 had simple Gastric Dilatation (GD), and 36 others had Gastric Dilatation but Volvulus could not be proved or disproved (GD +/- V). Among dogs with GDV, the fatality rate was 15% (29/193). Twenty-six (13.5%) dogs with GDV underwent partial gastrectomy, and 8 (31%) died or were subsequently euthanatized. In comparing the group of dogs with GDV that survived to those that died, there were no statistical differences in the age of dog, time between onset of clinical signs and admission, time from admission to surgery, or duration of anesthesia. Cardiac arrhythmias were detected in 40% (78/193) of the dogs with GDV. There also was no statistical correlation between development of a cardiac arrhythmia and outcome in dogs with GDV. The causes of death in dogs with GDV were multiple and varied; presumed Gastric necrosis was a common reason for intraoperative euthanasia (11 dogs). Among dogs with GD or GD +/- V, the fatality rate was 0.9% (1/102).
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canine Gastric Dilatation Volvulus syndrome in a veterinary critical care unit 295 cases 1986 1992
Javma-journal of The American Veterinary Medical Association, 1995Co-Authors: Daniel J. Brockman, Robert J. Washabau, Kenneth J. DrobatzAbstract:Two hundred ninety-five case records were included in an analysis of dogs treated by a standardized protocol for Gastric Dilatation/Volvulus syndrome between 1986 and 1992. A breed predisposition was demonstrated for Great Danes, German Shepherd Dogs, large mixed-breed dogs, and Standard Poodles. One hundred and ninety-three dogs had Gastric Dilatation and Volvulus (GDV) confirmed at surgery, 66 had simple Gastric Dilatation (GD), and 36 others had Gastric Dilatation but Volvulus could not be proved or disproved (GD +/- V). Among dogs with GDV, the fatality rate was 15% (29/193). Twenty-six (13.5%) dogs with GDV underwent partial gastrectomy, and 8 (31%) died or were subsequently euthanatized. In comparing the group of dogs with GDV that survived to those that died, there were no statistical differences in the age of dog, time between onset of clinical signs and admission, time from admission to surgery, or duration of anesthesia. Cardiac arrhythmias were detected in 40% (78/193) of the dogs with GDV. There also was no statistical correlation between development of a cardiac arrhythmia and outcome in dogs with GDV. The causes of death in dogs with GDV were multiple and varied; presumed Gastric necrosis was a common reason for intraoperative euthanasia (11 dogs). Among dogs with GD or GD +/- V, the fatality rate was 0.9% (1/102).
Laura Marconato - One of the best experts on this subject based on the ideXlab platform.
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Gastric Dilatation Volvulus as complication after surgical removal of a splenic haemangiosarcoma in a dog
Journal of Veterinary Medicine Series A-physiology Pathology Clinical Medicine, 2006Co-Authors: Laura MarconatoAbstract:An 8-year-old crossbreed dog presented after one episode of acute collapse due to rupture of a splenic haemangiosarcoma. Following splenectomy the dog recovered well. Two days after discharge the dog re-presented because of Gastric Dilatation-Volvulus (GDV) that eventually led to his death. Splenectomy to remove a voluminous splenic tumour may predispose to GDV and dogs may benefit from concurrent prophylactic gastropexy.
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Gastric Dilatation–Volvulus as Complication after Surgical Removal of a Splenic Haemangiosarcoma in a Dog
Journal of veterinary medicine. A Physiology pathology clinical medicine, 2006Co-Authors: Laura MarconatoAbstract:Summary An 8-year-old crossbreed dog presented after one episode of acute collapse due to rupture of a splenic haemangiosarcoma. Following splenectomy the dog recovered well. Two days after discharge the dog re-presented because of Gastric Dilatation–Volvulus (GDV) that eventually led to his death. Splenectomy to remove a voluminous splenic tumour may predispose to GDV and dogs may benefit from concurrent prophylactic gastropexy.
B. Ullmann - One of the best experts on this subject based on the ideXlab platform.
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Gastric Dilatation Volvulus a retrospective study of 203 dogs with ventral midline gastropexy
Journal of Small Animal Practice, 2016Co-Authors: B. Ullmann, N. Seehaus, S. Hungerbühler, Andrea MeyerlindenbergAbstract:OBJECTIVES To evaluate the recurrence rate of Gastric Dilatation Volvulus and the incidence of complications in subsequent coeliotomies following ventral midline gastropexy. METHODS The medical records of dogs treated for Gastric Dilatation Volvulus by ventral midline gastropexy were retrospectively reviewed. Owners were contacted and invited to complete a questionnaire and to return to the clinic for ultrasonographic and radiographic follow-up. RESULTS The questionnaire was completed by 203 owners 2 to 123 months postoperatively, 24 of whom attended the follow-up examination. Of the 203 dogs, 13 (6 · 4%) underwent subsequent ventral midline coeliotomy and none developed complications related to the gastropexy site. In 23 of the 24 re-evaluated dogs, the stomach was closely associated with the abdominal on radiography and/or ultrasound. The recurrence rate for clinical signs of Gastric Dilatation or Gastric Dilatation Volvulus after ventral midline gastropexy was 6 · 4%. CLINICAL SIGNIFICANCE This study shows that the recurrence of Gastric Dilatation Volvulus after ventral midline gastropexy is low and adhesion of the stomach to the abdominal wall is persistent in almost all dogs that were re-examined. The gastropexy site did not appear to interfere with subsequent coeliotomy.
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Gastric Dilatation Volvulus: a retrospective study of 203 dogs with ventral midline gastropexy
The Journal of small animal practice, 2015Co-Authors: B. Ullmann, N. Seehaus, S. Hungerbühler, Andrea Meyer-lindenbergAbstract:To evaluate the recurrence rate of Gastric Dilatation Volvulus and the incidence of complications in subsequent coeliotomies following ventral midline gastropexy. The medical records of dogs treated for Gastric Dilatation Volvulus by ventral midline gastropexy were retrospectively reviewed. Owners were contacted and invited to complete a questionnaire and to return to the clinic for ultrasonographic and radiographic follow-up. The questionnaire was completed by 203 owners 2 to 123 months postoperatively, 24 of whom attended the follow-up examination. Of the 203 dogs, 13 (6 · 4%) underwent subsequent ventral midline coeliotomy and none developed complications related to the gastropexy site. In 23 of the 24 re-evaluated dogs, the stomach was closely associated with the abdominal on radiography and/or ultrasound. The recurrence rate for clinical signs of Gastric Dilatation or Gastric Dilatation Volvulus after ventral midline gastropexy was 6 · 4%. This study shows that the recurrence of Gastric Dilatation Volvulus after ventral midline gastropexy is low and adhesion of the stomach to the abdominal wall is persistent in almost all dogs that were re-examined. The gastropexy site did not appear to interfere with subsequent coeliotomy. © 2015 British Small Animal Veterinary Association.