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1.
Open Vet J ; 14(6): 1497-1502, 2024 Jun.
Article in English | MEDLINE | ID: mdl-39055753

ABSTRACT

Background: We aimed to report the second case of mitral valve plasty (MVP) for acute mitral regurgitation (MR) due to mitral valve dysplasia in a young small dog. Case Description: A 5-month-old female Jack Russell, weighing 3.5 kg, presented with dyspnea and collapse upon excitation. Acute MR with pulmonary edema due to chordal rupture was diagnosed with a suspected congenital mitral valve anomaly. Despite treatment with high-dose drugs, heart failure symptoms and enlargement worsened. An artificial chordal replacement (ACR) was inserted using polytetrafluoroethylene sutures, and annuloplasty was performed. The dog was discharged on postoperative day 7. After 7 years, the dog underwent operations for complete anterior cruciate ligament tears with no cardiac signs. After 11.5 years, the dog showed no cardiac issues and died from a non-cardiac disease. Conclusion: The MVP method with ACR employed demonstrated better durability and promoted longer survival than that of previous dog mitral valve replacements.


Subject(s)
Dog Diseases , Mitral Valve Insufficiency , Mitral Valve , Animals , Dogs , Female , Mitral Valve Insufficiency/veterinary , Mitral Valve Insufficiency/surgery , Mitral Valve Insufficiency/etiology , Dog Diseases/surgery , Mitral Valve/surgery , Chordae Tendineae/surgery
2.
BMC Musculoskelet Disord ; 25(1): 426, 2024 May 31.
Article in English | MEDLINE | ID: mdl-38822289

ABSTRACT

BACKGROUND: The morphology of coxa profunda remains inadequately understood. However, knowledge about the characteristics of the acetabulum in coxa profunda can help to predict pelvic morphology in three dimensions based on radiographic findings, as well as help to diagnose and predict hip pathologies. Therefore, this study aimed to investigate the relationship between the morphological characteristics of the pelvis and coxa profunda. METHODS: We conducted a retrospective analysis including women who had undergone unilateral total hip arthroplasty. Only those with normal hip joint morphology on the opposite side, as evidenced by anteroposterior pelvic radiography showing a distance of ≥ 2 mm between the ilioischial line and acetabular floor, were included. Five parameters related to acetabular anteversion, thickness, and the position of the ilioischial line were measured using axial computed tomography at the central hip joint. The coxa profunda group (n = 39) and control group (n = 34) were compared. RESULTS: The mean acetabular anteversion angle was 12.5° ± 4° in the control group and 22.3° ± 5.6° in the coxa profunda group. The mean thickness from the acetabular fossa to the medial wall was 7.5 ± 1.7 mm in the control group and 3.9 ± 1.2 mm in the coxa profunda group. Furthermore, the bony region representing the ilioischial line was positioned more posteriorly in the coxa profunda group than it was in the control group. CONCLUSION: Our findings suggest that coxa profunda in women is associated with anterior acetabular dysplasia and a thin acetabulum, in contrast to previous interpretations of excessive coverage. This insight suggests a conversion of coxa profunda from a finding of pincer-type femoroacetabular impingement to a finding of acetabular dysplasia, a revelation that also draws attention to cup positioning for total hip arthroplasty.


Subject(s)
Acetabulum , Humans , Female , Acetabulum/diagnostic imaging , Acetabulum/surgery , Acetabulum/pathology , Retrospective Studies , Middle Aged , Aged , Tomography, X-Ray Computed , Arthroplasty, Replacement, Hip , Hip Joint/diagnostic imaging , Hip Joint/surgery , Hip Joint/pathology , Adult
3.
Open Vet J ; 14(2): 743-749, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38549570

ABSTRACT

Background: Cardiac myxomas are benign tumours that can occur in any heart chamber or valve. They are extremely rare in dogs. We present a novel case involving a cardiac myxoma in the left ventricular outflow tract (LVOT) and a ventricular septal defect (VSD) in a small dog. Case Description: A female miniature dachshund (age, 7 months; weight, 2.88 kg) presented with growth insufficiency, lethargy, and a cardiac murmur. Echocardiography revealed a small polypoid mass in the LVOT and a membranous VSD. Simultaneous surgeries were performed to resect the mass (aortotomy) and close the VSD (right atriotomy) using low-flow cardiopulmonary bypass with surface-cooling hypothermia and retrograde cardioplegia. The tumour was histopathologically identified as a myxoma. The dog survived with no cardiac complications for 11 years after surgery. Conclusion: To our knowledge, this is the first report of ante-mortem diagnosis and simultaneous surgical repair of a cardiac myxoma obstructing the LVOT and a VSD in a small-breed dog. In addition to describing this complicated case, this report presents what we believe is the first reported use of retrograde cardioplegia during open-heart surgery in a small-breed dog.


Subject(s)
Cardiac Surgical Procedures , Dog Diseases , Heart Septal Defects, Ventricular , Myxoma , Ventricular Outflow Obstruction, Left , Dogs , Female , Animals , Ventricular Outflow Obstruction, Left/veterinary , Heart Septal Defects, Ventricular/complications , Heart Septal Defects, Ventricular/surgery , Heart Septal Defects, Ventricular/veterinary , Echocardiography/veterinary , Cardiac Surgical Procedures/veterinary , Myxoma/complications , Myxoma/diagnosis , Myxoma/surgery , Myxoma/veterinary , Dog Diseases/diagnosis , Dog Diseases/surgery
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