A possible diagnosis of isolated right ventricular hypertrabeculation /noncompaction in an elderly man by three-dimensional echocardiography

The Clinical and Echocardiographic Analysis of Noncompaction Cardiomyopathy in Misdiagnosis and Missed Diagnosis

“…The study of right ventricular (RV) noncompaction is still limited to isolated case reports until now [16,17]. RV noncompaction was diagnosed in present study only in cases where a bilayered structure with flow within the trabeculaes could be noted in the basal and middle wall of right ventricle, and the ratio of the bilayered structure must > 2:1.…”

An isolated right ventricular hypertrabeculation and dyskinesia in an elderly man: A possible diagnosis of isolated right ventricular noncompaction?

“…Although there is no established criteria for HVM/NVM in the right ventricle, right ventricle HVM/NVM has been reported in some cases [4][5][6][7][8][9][10] in whom the diagnosis of right ventricle HVM/NVM were pretty dependent on 2DE. The morphological assessment of the right ventricle is often difficult in adult patients by 2DE and 2DE image quality is operator dependent.…”

“…Specifically, right ventricular can be sectioned in userselected planes and an unlimited number and angles of such planes can be used. Intracavitary echodensities that are suspicious for trabeculations can be tracked in multiple directions from base to apex [9]. The resulting images provide the ability to visualize an entire trabeculation.…”

“…Some cases were associated with noncompaction of the left ventricular myocardium [7], while others were not [8]. The cases are extremely rare to be reported in which only the right ventricle was involved without evidence of left ventricular involvement in an adult subject [9]. Therefore, we present a case of isolated HVM/NVM of the right ventricle in an elderly man, which was confirmed by transthoracic three-dimensional echocardiography and approach the possible mechanism of isolated HVM/NVM of the right ventricle in the present case.…”

Alternative ways to assess left atrial function in noncompaction cardiomyopathy by three-dimensional speckle-tracking echocardiography

“…Recently, direct volumetric RT3DE was found to be useful to assess isolated left ventricular (LV) NCCM alone [7][8][9][10][11][12][13][14], or in combination with Ebstein anomaly [15] or double-orifice mitral valve [16]. Moreover, isolated right ventricular [17] and biventricular forms were also evaluated by RT3DE [18]. In a larger series of NCCM patients, noncompacted and compacted LV segments had comparable increased 3D regional volumes and reduced systolic function suggesting that systolic LV dysfunction is not confined to noncompacted LV segments [19].…”