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Specialty: Veterinary Research

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Total 145 results found since Jan 2013.

Assessing aortic regurgitation severity from 2D, M-mode and pulsed wave Doppler echocardiographic measurements in horses
Publication date: Available online 18 January 2016 Source:The Veterinary Journal Author(s): S. Ven, A. Decloedt, N. Van Der Vekens, D. De Clercq, G. van Loon Aortic regurgitation (AR) in horses can lead to left ventricular (LV) eccentric hypertrophy, ventricular arrhythmia and heart failure. Objective quantification of the severity of regurgitation is difficult. The aim of this study was to evaluate dimensional measurements, systolic time intervals and blood flow velocities, acquired by standard 2D, M-mode and pulsed wave Doppler echocardiography, for quantification of AR. Echocardiography was performed in 32 health...
Source: The Veterinary Journal - January 18, 2016 Category: Veterinary Research Source Type: research

Quantification of left ventricular volumes and function in anesthetized beagles using real-time three-dimensional echocardiography: 4D-TomTec™ analysis versus 4D-AutLVQ™ analysis in comparison with cardiac magnetic resonance imaging
Conclusion: 4D-TomTec™ and 4D-AutLVQ™ are feasible RT3DE analyzing programs, allowing accurate volume quantification of the left ventricle, albeit with significant underestimation of ventricular volumes in comparison with the gold standard CMRI. 4D-AutLVQ™ is performed faster with less inter-observer variability than 4D-TomTec™. Therefore, 4D-AutLVQ™ is the more practicable measurement method when comparing the different analyzing programs.
Source: BMC Veterinary Research - October 12, 2015 Category: Veterinary Research Authors: Judith EskofierPatrick WefstaedtMartin BeyerbachIngo NolteStephan Hungerbühler Source Type: research

Pneumothorax in a dog caused by necrotizing pneumonia secondary to heatstroke
Abstract ObjectiveTo describe the clinical course, diagnostic findings, medical and surgical treatments, and outcome in a dog with spontaneous pneumothorax secondary to necrotizing pneumonia thought to be a delayed complication of heatstroke. Case SummaryA 1.5‐year‐old Labrador Retriever developed spontaneous pneumothorax 12 days after an episode of exertional heat stroke. Computed tomography was performed and showed bilateral pneumothorax and multifocal pulmonary consolidation, especially at the lung periphery. A median sternotomy was performed, and multifocal, well‐demarcated areas of consolidated pulmonary tissue ...
Source: Journal of Veterinary Emergency and Critical Care - October 1, 2015 Category: Veterinary Research Authors: Jocelyn B. Garber, Katrin Saile, Nathalie Rademacher, James R. Wignall, Leslie D. McLaughlin, Kirk A. Ryan Tags: Case Report Source Type: research

Hemodynamic effects of target-controlled infusion of propofol alone or in combination with a constant-rate infusion of remifentanil in dogs.
In conclusion, the hemodynamic changes observed in this study indicate a compromise of the cardiovascular system, although the dogs in this study were healthy/euvolemic and there was no change in preload. More studies are required in order to evaluate the actual safety of the combination of propofol and remifentanil in patients with reduced cardiac reserve. PMID: 26424912 [PubMed - in process]
Source: Canadian Journal of Veterinary Research - October 1, 2015 Category: Veterinary Research Authors: Beier SL, Mattoso CR, Aguiar AJ, Vianna PT, Massone F Tags: Can J Vet Res Source Type: research

Continuous infusion of propofol in calves: bispectral index and hemodynamic effects
Conclusions and clinical relevanceA continuous infusion of propofol at 0.6 or 0.8 mg kg−1 minute−1 caused minimal hemodynamic changes without clinical relevance in calves. BIS could not be reliably used to discriminate the anesthetic depth during the two propofol infusion rates.
Source: Veterinary Anaesthesia and Analgesia - September 11, 2015 Category: Veterinary Research Authors: Mauricio Deschk, Juliana T Wagatsuma, Marcelo A Araújo, Guilherme GF Santos, Sergio SR Júnior, Caio JX Abimussi, Carlos E Siqueira, Jéssica CL Motta, Silvia HV Perri, Paulo SP Santos Tags: Research Paper Source Type: research

Increased normalized pulmonary transit times and pulmonary blood volumes in cardiomyopathic cats with or without congestive heart failure
Conclusion nPTT may be useful as a test for the presence of CHF in cats with CM and as a measure of cardiac performance. nPTT and LA:AO ratios predict CHF with equal accuracy. Increased PBV is significantly associated with higher nPTT and LA:AO ratios.
Source: Journal of Veterinary Cardiology - March 31, 2015 Category: Veterinary Research Source Type: research

Cardiovascular effects of dopamine hydrochloride and phenylephrine hydrochloride in healthy isoflurane-anesthetized New Zealand White rabbits (Oryctolagus cuniculus).
CONCLUSIONS AND CLINICAL RELEVANCE Within the dose range of 5 to 30 μg/kg/min, dopamine was not an effective treatment for isoflurane-induced hypotension in rabbits and phenylephrine was only minimally effective at a dose of 2 μg/kg/min. PMID: 25629908 [PubMed - in process]
Source: American Journal of Veterinary Research - January 31, 2015 Category: Veterinary Research Authors: Gosliga JM, Barter LS Tags: Am J Vet Res Source Type: research

Ischemic stroke in greyhounds
Stroke can be the result of ischemic or hemorrhagic events that cause decreased perfusion to the entire brain or to a specific region of the brain. Ischemic stroke is the result of vascular occlusion secondary to a thrombus or embolus. Hemorrhagic stroke is the result of bleeding.
Source: Advances in Small Animal Medicine and Surgery - January 1, 2015 Category: Veterinary Research Tags: Neurology Source Type: research

Effects of dexmedetomidine on pulse pressure variation changes induced by hemorrhage followed by volume replacement in isoflurane‐anesthetized dogs
ConclusionsDuring ISO anesthesia, PPV increases in individuals prone to developing hypotension from hypovolemia. Because DEX prevents the increase in PPV associated with hypovolemia, PPV should not be used to guide VR in dogs that have been given DEX.
Source: Journal of Veterinary Emergency and Critical Care - December 3, 2014 Category: Veterinary Research Authors: Miriely S. Diniz, Francisco J. Teixeira‐Neto, Thaísa D. Cândido, Felipe S. Zanuzzo, Lívia R. Teixeira, Adriana V. Klein, Paulo do Nascimento Tags: Original Study Source Type: research

The Influence of Emotional Stress on Doppler‐derived Aortic Peak Velocity in Boxer Dogs
Conclusion and Clinical ImportanceAortic peak velocity was affected by emotional stress during echocardiographic examination both in SAS‐affected and normal Boxers. In normal Boxers, aortic root size weakly affected AoPVs, but did not affect AoPV0–AoPV1. Stroke volume seems to play a major role in stress‐related AoPV increases in normal Boxers. Emotional stress should be taken into account when screening for SAS in the Boxer breed.
Source: Journal of Veterinary Internal Medicine - October 13, 2014 Category: Veterinary Research Authors: D. Pradelli, C. Quintavalla, M.C. Crosta, L. Mazzoni, P. Oliveira, L. Scotti, P. Brambilla, C. Bussadori Tags: Standard Article Source Type: research

Comparison of echocardiographic measurements in elite and nonelite Arabian endurance horses.
Conclusions and Clinical Relevance-Results indicated that heart size was significantly associated with performance for Arabian endurance horses in a manner similar to findings for Thoroughbred and Standardbred racehorses in active competition. PMID: 25255178 [PubMed - in process]
Source: American Journal of Veterinary Research - September 28, 2014 Category: Veterinary Research Authors: Sleeper MM, Durando MM, Holbrook TC, Payton ME, Birks EK Tags: Am J Vet Res Source Type: research

Effects of two different anesthetic protocols on cardiac flow measured by two dimensional phase contrast magnetic resonance imaging
Companion animals are routinely anesthetized or heavily sedated for cardiac MRI studies, however effects of varying anesthetic protocols on cardiac function measurements are incompletely understood. The purpose of this prospective study was to compare effects of two anesthetic protocols (Protocol A: Midazolam, fentanyl; Protocol B: Dexmedetomidine) on quantitative and qualitative blood flow values measured through the aortic, pulmonic, mitral, and tricuspid valves using two‐dimensional phase contrast magnetic resonance imaging (2D PC MRI) in healthy dogs. Mean flow per heartbeat values through the pulmonary artery (Qp) a...
Source: Veterinary Radiology and Ultrasound - August 15, 2014 Category: Veterinary Research Authors: Randi Drees, Rebecca A. Johnson, Rebecca L. Stepien, Alejandro Munoz Del Rio, Christopher J. François Tags: Original Investigation Source Type: research

The cardiopulmonary effects of dexmedetomidine infusions in dogs during isoflurane anesthesia
Conclusions and clinical relevanceCardiopulmonary changes associated with LD were within clinically accepted normal ranges whereas HD produced clinically significant changes. The LD may be useful as an anesthetic adjunct in healthy dogs.
Source: Veterinary Anaesthesia and Analgesia - July 1, 2014 Category: Veterinary Research Authors: Peter J Pascoe Tags: Research Paper Source Type: research

Prognostic value of echocardiographic and Doppler parameters in horses admitted for colic complicated by systemic inflammatory response syndrome
ConclusionsEchocardiography may provide prognostic information in colic horses with clinical evidence of SIRS. Especially, PEP/ET and E/Em could be useful markers of systolic and diastolic dysfunction, respectively, to detect horses with a high risk of death requiring more intensive cardiovascular monitoring as it has been reported in human patients with septic shock.
Source: Journal of Veterinary Emergency and Critical Care - April 1, 2014 Category: Veterinary Research Authors: Laura Borde, Hélène Amory, Sigrid Grulke, Aurélia A. Leroux, Rosa M. Houben, Johanne Detilleux, Charlotte C. Sandersen Tags: Original Study Source Type: research

Comparison of the cardiorespiratory effects of a combination of ketamine and propofol, propofol alone, or a combination of ketamine and diazepam before and after induction of anesthesia in dogs sedated with acepromazine and oxymorphone.
Conclusions and Clinical Relevance-In dogs, K-P treatment maintained mean arterial blood pressure better than propofol alone and increased heart rate, cardiac output, or oxygen delivery, as did the K-D treatment. Supplemental 100% oxygen should be provided during IoA with all 3 treatments. PMID: 24564308 [PubMed - in process]
Source: American Journal of Veterinary Research - March 1, 2014 Category: Veterinary Research Authors: Henao-Guerrero N, Riccó CH Tags: Am J Vet Res Source Type: research