Angiotensinergic Innervation of the Human Right Atrium: Implications for Cardiac Reflexes

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Angiotensinergic Innervation of the Human Right Atrium: Implications for Cardiac Reflexes

BACKGROUND The right atrium is densely innervated and provides sensory input to important cardiocirculatory reflexes controlling cardiac output and blood pressure. Its angiotensin (Ang) II-expressing innervation may release Ang II as a neuropeptide cotransmitter to modulate reflexes but has not yet been characterized. METHODS Intraoperative surgical biopsies from human right atria (n = 7) wer...

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We report a patient with a large mass in the right atrium with tricuspid valve involvement resulting in significant stenosis, which was a tuberculoma without active pulmonary disease. Cardiac tuberculoma is rare and usually involves the pericardium. Myocardial involvement is a very rare occurrence. 

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A 73-year old man underwent transthoracic and transoesophageal echocardiography and computed tomography, which revealed what appeared to be an asymptomatic primary mobile tumour located in the right atrium. During surgery, the mass was found to be associated with the right atrial septum and was subsequently resected. Histopathology of the mass revealed a cardiac varix with phleboliths. The pati...

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Cardiac laceration from blunt thoracic trauma is not a common presentation. The rate of mortality due to this injury is very high since it is not diagnosed and treated immediately. In this study, we present the case of a 65-year-old man with blunt cardiac trauma, causing right atrial rupture and pericardial tamponade. Successful management of this patient was firstly done with initial pericardi...

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We detected two cases of right atrial angiosarcoma that had a similar appearance on imaging studies. Although the surgical findings were similar for the two patients, one had a clear resection margin, while the other had tumor cells in the resection margin on frozen biopsy. We suggest that preoperative data on magnetic resonance imaging and computed tomography in patients with angiosarcomas may...

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ژورنال

عنوان ژورنال: American Journal of Hypertension

سال: 2017

ISSN: 0895-7061,1941-7225

DOI: 10.1093/ajh/hpx163