Technique and outcome of mitral valve replacement in dogs

Orton, E. Christopher; Hackett, Timothy B.; Mama, Khursheed R.; Boon, June A.

doi:10.2460/javma.2005.226.1508

Cited by 64 publications

(61 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Recent improvements in cardiopulmonary bypass techniques have enabled its use in small breed dogs (34,35). In the case of prosthetic valves, matching the size of the valve and conquering thrombosis is essential for long-term prognosis (36). Recently, successful techniques for mitral valve repair with annuloplasty and chordal replacement have been utilized, which enables long-term survival for severe MMVD patients (37).…”

Section: Surgical Management Of Mmvdmentioning

confidence: 99%

Myxomatous Mitral Valve Disease in Dogs - an Update and Perspectives

Petrič

2015

Macedonian Veterinary Review

View full text Add to dashboard Cite

show abstract

Section: Surgical Management Of Mmvdmentioning

confidence: 99%

Myxomatous Mitral Valve Disease in Dogs - an Update and Perspectives

Petrič

2015

Macedonian Veterinary Review

View full text Add to dashboard Cite

show abstract

“…Esse é um acidente comum de ocorrer devido à característica do endotélio e à inexperiência do cirurgião, tendendo à não reocorrência conforme maior a prática, como observado também em outro experimento 8 . A hemorragia decorrente da ruptura da aorta no animal 1 foi solucionada rapidamente com a sutura da mesma, porém impossibilitou a efetivação da linha arterial através da aorta, procedendo-se, então, à técnica com a canulação da artéria femoral, assim como realizado em outros experimentos [9][10][11] , mantendo-se o animal durante 30 minutos em CEC e uma hora de reperfusão pós-CEC, assim como os demais animais, os quais não sofreram acidentes trans-cirúrgicos durante a efetivação da técnica, que foi realizada com destreza.…”

Section: Resultsunclassified

Aspectos hemodinâmicos da circulação extracorpórea em cães

et al. 2014

View full text Add to dashboard Cite

A circulação extracorpórea (CEC) promove alterações graves no organismo do paciente que necessita ser submetido a esse procedimento, que pode, no entanto, ser contornadas ou minimizadas com manobras específicas para cada situação. Apesar de ser uma técnica já estabelecida na medicina humana, ainda existem avanços a serem alcançados. Objetivou-se com este trabalho descrever a técnica de circulação extracorpórea e informar seus efeitos hemodinâmicos quando aplicada em cães. Utilizaram-se quatro cães hígidos, sem raça definida. Os animais foram submetidos à anestesia e monitoramentos e coletas sanguíneas foram realizadas (T0). Em seguida, os animais foram submetidos à esternotomia mediana, canulação da artéria aorta e veias cava cranial e caudal e mantidos por um período de 30 minutos em CEC (T1), foram, depois, desconectados da máquina de CEC, permanecendo por 30 minutos em processo de reperfusão (T2), seguidos de uma hora de reperfusão (T3), sendo, então, eutanasiados. Avaliaram-se os seguintes parâmetros: pressão arterial média, pressão venosa central, oxigenação (SaO2) e capnografia (ETCO2). PAM, PVC e SaO2 permaneceram dentro da normalidade durante os tempos avaliados, já a média observada do ETCO2 estava abaixo apenas em um dos animais experimentais, porém os valores mantiveram-se dentro da normalidade na maioria dos animais experimentais. Concluiu-se que a CEC é possível de ser realizada em cães, sem prejuízos hemodinâmicos graves, considerando-se os parâmetros avaliados neste experimento.PALAVRAS-CHAVE: Cães, circulação extracorpórea, cardiologia veterinária, cirurgia. HEMODYNAMIC ASPECTS OF CARDIOPULMONARY BYPASS IN DOGS ABSTRACTThe cardiopulmonary bypass (CPB) promotes major changes to the body of the patient that needs to be subjected to this procedure, but it can be circumvented or minimized with specific maneuvers for each situation. Despite being an established technique in human medicine, there are still improvements to be achieved. The purposes of this work were to clarify the cardiopulmonary bypass and inform its hemodynamic effects when applied to dogs. Four mongrel healthy dogs were used. The animals were anesthetized and monitored and samples were collected (T0). After that, the animals underwent median sternotomy and cannulation of the aorta and cranial and caudal vena cava and they were kept in CPB for a period of 30 minutes (T1), then disconnected from the CPB machine during 30 minutes in reperfusion process (T2), followed by one hour of reperfusion (T3), and then they were euthanized. The following parameters were evaluated: mean arterial pressure (MAP), central venous pressure (CVP), oxygenation (SaO2) and capnography (ETCO2). MAP, CVP and SaO2 remained within normal limits during the times evaluated. Although the observed average of ETCO2 was low in one of the experimental

show abstract

“…In a median sternotomy or a right lateral thoracotomy, venous catheters were generally inserted through the right atrium into a cranial vena cava and a caudal vena cava to drain the blood from the heart to CPB system [21,23,29]. But in this study, we performed MVR with a left lateral thoracotomy because the approach to the mitral valve via a left atrium incision was very easy.…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, bioprosthetic valves have limited durability but have low thrombogenicity and do not require long-term anticoagulation therapy [1,22]. In dogs, mechanical valve replacement is so difficult to obtain a long-term survival rate because of a prosthetic valve thrombosis [21,24]. Therefore, bioprosthetic valves are recommended for dogs, and porcine bioprosthetic valves cross-linked with glutaraldehyde and polyepoxy compounds were newly developed for MVR.…”

mentioning

confidence: 99%

Short-Term Performance of Mitral Valve Replacement with Porcine Bioprosthetic Valves in Dogs

Takashima¹,

Soda

Tanaka

et al. 2007

The Journal of Veterinary Medical Science

View full text Add to dashboard Cite

ABSTRACT. Porcine bioprosthetic valves cross-linked with glutaraldehyde and polyepoxy compound were newly developed for mitral valve replacement (MVR) in dogs. Five beagle dogs were performed a left thoracotomy and underwent MVR using the porcine bioprosthetic valves during cardiopulmonary bypass (CPB). A vein catheter inserted into right atrium and a vent catheter inserted into the right ventricle to drain. The hemodynamic conditions of CPB were excellent during surgery. The left atrial pressure was measured before and after MVR; there was no significant difference and it was normal. Thrombosis and the prosthetic valve regurgitation were not observed one week after MVR. Pressure half time (PHT) prolonged significantly (P<0.05) from 31.40 ± 4.0 msec presurgery to 99.20 ± 19.4 msec at seven days after MVR, although it indicated the normal range as the bioprosthetic valve. The symptom of the prosthetic valve failure was not observed. This study indicated that the MVR using porcine bioprosthetic valves under CPB might have been effective in dogs as a short-term evaluation. KEY WORDS: bioprosthetic valve, canine cardiopulmonary bypass, mitral regurgitation, mitral valve replacement.

show abstract

Technique and outcome of mitral valve replacement in dogs

Cited by 64 publications

References 16 publications

Myxomatous Mitral Valve Disease in Dogs - an Update and Perspectives

Myxomatous Mitral Valve Disease in Dogs - an Update and Perspectives

Aspectos hemodinâmicos da circulação extracorpórea em cães

Short-Term Performance of Mitral Valve Replacement with Porcine Bioprosthetic Valves in Dogs

Contact Info

Product

Resources

About