Doppler‐ultrasonographic detection of retrograde pulsatile flow in the caudal vena cava of a puppy with triatriatum dexter

Szatmári, Viktor; Sótonyi, Péter; Fenyves, B.; Vörös, K.

doi:10.1136/vr.147.3.68

Cited by 16 publications

(6 citation statements)

References 4 publications

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“…Dogs with imperforate septa tend to form anomalous collateral vessels connecting the CdVC either directly to the right azygos vein or indirectly to the right azygos vein via the vertebral or intercostal venous circulation [8, 9, 11, 12]. In this case, indirect azygos continuation of the CdVC was found with suspected shunting through anastomosis with the vertebral venous circulation.…”

Section: Resultsmentioning

confidence: 96%

“…However, the increased resistance impeding caudal venous return will lead to signs of caudal right-sided CHF (i.e., hepatic venous congestion, ascites) without evidence of cranial right-sided CHF signs (i.e., jugular vein distension). If the membrane is imperforated, like in this case, which is described less frequently than the perforated form [3, 8, 9], no communication exists between the two right atrial compartments divided by the anomalous membrane. Thrombotic or nonthrombotic obstruction of the hepatic venous outflow results in the classic triad of hepatomegaly, ascites, and abdominal pain secondary to development of postsinusoidal portal hypertension.…”

Section: Resultsmentioning

confidence: 99%

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Imperforated cor triatriatum dexter in a dog with concurrent caudal vena cava wall mineralization

et al. 2017

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BackgroundCor triatriatum dexter (CTD) is a rare congenital cardiac malformation with various manifestations and has been sporadically described in dogs. Clinically the dogs present with nonspecific signs of right heart failure or Budd-Chiari-like syndrome. Other associated concurrent cardiovascular anomalies are commonly reported. Diagnosis and full characterization of this complex malformation requires careful investigation and often a multimodal imaging approach.Case presentationA 10-week-old, male intact, Golden Retriever was presented with clinical signs of stunted growth, anorexia, and progressive ascites. CTD imperforate with sole separation of the caudal vena cava (CdVC) and concurrent venous wall mineralization was conjointly diagnosed and fully characterized by echocardiography, non-selective angiography, computed tomography angiography and cardiac magnetic resonance imaging (MRI). This was successfully treated surgically and the dog returned to normal activity.ConclusionTo the author’s knowledge, this is the first case of CTD imperforate separating the CdVC from the right atrium (RA) with presumed secondary CdCV wall and hepatic parenchyma mineralization reported in a dog. CTD is an important and potentially correctable cause for the development of ascites in a young puppy. Accurate diagnosis of this complex cardiac anomaly is important for selection of the most appropriate curative treatment option.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Imperforated cor triatriatum dexter in a dog with concurrent caudal vena cava wall mineralization

et al. 2017

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“…If the hole is small, the resistance to blood flow will increase pressure in the upstream chamber, which will result in dilation of the pulmonary (CTS) or caval (CTD) veins [110,111]. This will result in pulmonary congestion in the lungs and pulmonary edema in the case of CTS [99] or abdominal distension by ascites in the case of CTD [112].…”

Section: Cor Triatriatummentioning

confidence: 99%

Congenital Cardiopathies

Bussadori¹,

Pradelli²

2015

Clinical Echocardiography of the Dog and Cat

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“…In human beings and dogs, CTD has been described in association with ventricular or atrial septal defects and tricuspid insufficiency (Otto and others 1990, Szatmari and others 2000, Caliskan and others 2006). One dog with CTD was also found with mild tricuspid dysplasia and dynamic subaortic stenosis (Mitten and others 2001).…”

Section: Introductionmentioning

confidence: 99%

Transient tricuspid valve regurgitation following surgical treatment of cor triatriatum dexter in a dog

Bublot¹,

Viguier²

2009

J of Small Animal Practice

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Echocardiographically documented tricuspid valve regurgitation appeared immediately after surgical treatment of cor triatriatum dexter in a two-month-old rottweiler. Medical treatment was instituted with benazepril, spironolactone and furosemide. Pimobendan was added after five months, and all treatment was discontinued two months later when clinical signs of ascites and hepatomegaly had resolved and tricuspid valve regurgitation was markedly reduced on echocardiography. To the authors' knowledge, this is the first report describing the development and spontaneous improvement of haemodynamically significant tricuspid valve regurgitation following surgical treatment of cor triatriatum dexter in a dog. It is hypothesised that the increase in right atrial volume and pressure following cor triatriatum dexter repair and transient ischaemia of papillary muscles led to dilatation of the right atrioventricular annulus and subsequent severe tricuspid valve regurgitation in the face of an anatomically normal valve. Time and pharmacological preload reduction as well as normalisation of right atrial inflow and subsequent cardiac remodelling substantially reduced tricuspid valve regurgitation and eliminated clinical signs of heart failure. It is also possible that heart recovery has been spontaneous.

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Doppler‐ultrasonographic detection of retrograde pulsatile flow in the caudal vena cava of a puppy with triatriatum dexter

Cited by 16 publications

References 4 publications

Imperforated cor triatriatum dexter in a dog with concurrent caudal vena cava wall mineralization

Imperforated cor triatriatum dexter in a dog with concurrent caudal vena cava wall mineralization

Congenital Cardiopathies

Transient tricuspid valve regurgitation following surgical treatment of cor triatriatum dexter in a dog

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