Giant right atrial diverticulum: an unusual cause of Wolff-Parkinson-White syndrome

Shah, Kairav; Walsh, Kathleen E.

doi:10.1136/hrt.68.7.58

Cited by 33 publications

(35 citation statements)

References 3 publications

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“…Smooth and communicating diverticula are suggested to create a potential "loop" to trigger a transmission disorder (8,9,11,12). As coronary CTA is problematic in patients with disordered cardiac rhythms such as atrial fibrillation (13), these patients were excluded from our study, and thus the relationship between atrial fibrillation and the frequency of atrial diverticula could not be evaluated.…”

Section: Discussionmentioning

confidence: 99%

Left atrial diverticula incidence during coronary CT angiography examination

İncedayı

Öztürk²,

Sönmez³

et al. 2012

Diagn Interv Radiol

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Section: Discussionmentioning

confidence: 99%

Left atrial diverticula incidence during coronary CT angiography examination

İncedayı

Öztürk²,

Sönmez³

et al. 2012

Diagn Interv Radiol

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“…Several thrombi were suspected to lie within the diverticulum on echocardiography of this case although D‐dimer level was in the reference range. The diverticulum can be so large that it compresses the right atrium and ventricle 15. This case showed serious clinical signs associated with congestive heart failure.…”

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confidence: 83%

Echocardiographic Features of Giant Right Atrial Diverticulum in a Dog

Park

Kittleson

et al. 2017

Veterinary Internal Medicne

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A 12‐year‐old spayed female miniature Poodle presented for coughing, respiratory distress, and anorexia. After thoracentesis for pleural effusion, radiography revealed an enlarged cardiac silhouette with a bulge in the area of the body of the right atrium. Echocardiography revealed an anechoic chamber‐like cavity lateral to the right atrium that communicated with the right atrium through a 13 mm defect in the right atrial free wall. Contrast echocardiography and color flow Doppler were used to prove that the cavity communicated with the right atrium. The cavity was diagnosed as a giant right atrial diverticulum.

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“…4 Right atrial diverticula have all been associated with supraventricular tachycardia. 4,6 It is suggested that abnormal tissue in the wall contains irritable ectopic foci or may provide extensive surfaces over which abnormal circular impulses are transmitted. 4 In one patient, the tachycardia was thought to be caused by adherence of the giant diverticulum to the under- lying right ventricle.…”

mentioning

confidence: 99%

“…4 In one patient, the tachycardia was thought to be caused by adherence of the giant diverticulum to the under- lying right ventricle. 6 The diverticula have been successfully excised from the heart in some patients, resulting in restoration of normal cardiac rhythm. 4 Although an electrocardiogram was not performed during clinical examination of this foal, the heart rate was reported to be increased.…”

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confidence: 99%

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Giant Right Atrial Diverticulum in a Foal

Patterson-Kane

Harrison

2002

J VET Diagn Invest

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Abstract.A 5-month-old male Thoroughbred foal with a history of chronic septic arthritis of the tibiotarsal joint and recent respiratory distress was euthanized and a postmortem examination performed. A giant diverticulum communicating with the lateral aspect of the right atrial cavity of the heart was observed. Histologically, the wall was comprised of myocardial tissue containing cavernous vascular spaces. There was gross and histologic evidence of right-sided heart failure. Congenital right atrial diverticula are rare anomalies in humans and have not previously been reported in foals.Cardiac diverticula are congenital or occasionally acquired fibrous or muscular outpouchings from atrial or ventricular cavities. 3,4 They are rarely reported in humans, and most commonly occur through a defect in the left ventricular myocardium. 8 A few cases of right and left atrial diverticula have been documented in children and adults 1,2,4-7 ; this is the first report of a right atrial diverticulum in a foal.A 5-month-old male Thoroughbred foal was presented to the referring veterinarian with septic arthritis of the right tibiotarsal joint, which had been treated for several months. The foal became recumbent, with increased respiratory and heart rates and increased respiratory sounds. The foal was euthanized and presented to the Livestock Disease Diagnostic Center, Lexington, Kentucky, for postmortem examination.At necropsy, the pericardial sac was opaque and expanded by a 20-ϫ 25-ϫ 25-cm hollow mass, which was slightly larger than the entire heart. The mass had a 2-5-mm-thick muscular wall, which was continuous with the lateral wall of the right atrium (Fig. 1). The central lumen communicated with the right atrial cavity via a 10-cm diameter opening and contained clotted blood, which was not adherent to the inner lining. A right atrial appendage was not noted, and the coronary groove on the right side was deviated ventrally (Fig. 1). Right and left ventricular walls measured 1.2 cm and 3.2 cm in thickness, respectively. The right ventricle formed the apex of the heart, and the right ventricular cavity and right atrioventricular orifice were dilated. Caudal regions of right and left lung lobes were red and firm. The liver was swollen, with an irregular surface and an enhanced lobular pattern. The right tibiotarsal joint was markedly distended by opaque, tan fluid, and the synovial lining was red and significantly thickened. Large irregular regions of ulceration of the articular cartilage were noted on the lateral and medial malleoli of the right tibia and lateral and medial trochlear ridges of the talus; exposed subchondral bone of the talus was brown and soft, with an irregular surface. Streptococcus zooepidemicus was isolated in pure culture from the lung, spleen, and right tibiotarsal joint.Representative tissue specimens were fixed in 10% neutral buffered formalin, processed routinely, and sectioned at 5

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Giant right atrial diverticulum: an unusual cause of Wolff-Parkinson-White syndrome

Cited by 33 publications

References 3 publications

Left atrial diverticula incidence during coronary CT angiography examination

Left atrial diverticula incidence during coronary CT angiography examination

Echocardiographic Features of Giant Right Atrial Diverticulum in a Dog

Giant Right Atrial Diverticulum in a Foal

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