Left atrial wall dissection after mitral valve surgery: assessment with cardiac magnetic resonance

Left Atrial Intramural Hematoma after Removal of Atrial Myxoma: Cardiac Magnetic Resonance in the Differential Diagnosis of Intra-Cardiac Mass

“… 2) 9) CMR can visualize the full contents of the abnormality that is not obvious on echocardiography and, thus, can clarify the nature of intra-cardiac structures thanks to its excellent spatial resolution and a variety of CMR techniques like T1 and T2. 12) 13) In this case, it was not easy to perform TEE under conditions with high hemorrhagic risk, and it is generally well recognized that ultrasound has a limitation to investigate tissue characteristics of any intra-cardiac mass. More specifically in relation to this patient, intra-atrial mass showing heterogeneous intermediate signal in T1- and high in T2-weighted images of CMR without late gadolinium enhancement was observed, suggesting a high possibility of LA intramural hematoma complicating LA dissection, not thrombus, in the posterior and inferior wall of the LA.…”

“…Therefore, it sometimes cannot tell us appropriate information on the nature of the given structure in time. 13) 14) In contrast, CMR is the vanguard of alternative cardiac imaging in the contemporary era, serving more accurate anatomic as well as tissue details. 2) 9) CMR can visualize the full contents of the abnormality that is not obvious on echocardiography and, thus, can clarify the nature of intra-cardiac structures thanks to its excellent spatial resolution and a variety of CMR techniques like T1 and T2.…”

“…We here present one rare case of LA dissection following removal of LA myxoma attached to the atrial septum. Even though LA dissection assessed by cardiac magnetic resonance imaging (CMR) has been previously reported, 11) 12) 13) this case report is unique in that 1) LA dissection with hematoma occurred after LA myxoma excision, and 2) CMR changed the diagnosis and finally guided management decision.…”

Case of Left Atrium Intramural Hematoma After Percutaneous Coronary Intervention

“…Дифференциальный диагноз следует проводить с миксомой, эхинококкозом, тромбом ЛП, внешней компрессией ЛП за счет неопластических процессов или перикардиальных кист [7,10]. Возможности ЭхоКГ и ЧП-ЭхоКГ ограничены с точки зрения характеристики структуры и плотности выявленного образования [25,30]. Предшествующее оперативное вмешательство, наличие данных ЭхоКГ до операции, как это было в представленном нами случае, позволяет заподозрить ИГЛП.…”

Left atrial dissection

“…Forty-seven patients had mitral valve surgery including MVR in 36 (76.6 %) (mechanical prosthesis: 28 [1][2][3][7][8][9][10][11][12][13][14][15][16][17][18][19][20], bioprosthesis: 8 [1,2,5,[21][22][23][24][25], unknown: 1 [26]), mitral valve repair in 10 (21.3 %) [1,2,6,[27][28][29][30][31][32], and MVR after failure of repair in 1 (2.1 %) [33]. Of 37 patients who underwent MVR, 11 (29.7 %) had redo MVR [3, 5, 7-9, 11, 16, 18-20].…”