Inspiratory Ivc Collapse On 2d Echo Is It Good

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measurements (cm)

Inferior vena cava respirophasic movments (inspiratory collapse)

Corresponding right atrial pressures (mmHg)

Normal Mild Moderate Severe

1.5-2.5 >1.5 >2.5 >2.5 (with dilated intrahepatic veins)

Complete collapse <50% collapse <50% collapse No collapse

aBased on inferior vena cava measurements using subcostal window.

These adverse echocardiographic markers may identify a subset of individuals who may benefit from the use of more aggressive therapy in the management of PE, including thrombolytic therapy or pulmonary embolectomy. After thrombolysis for acute PE, right ventricular function has been demonstrated to improve echocardiographically (Figs. 10 and 11).

Fig. 13. Parasternal short-axis view (PSAX) showing grossly dilated right ventricle a patient with chronic pulmonary hypertension and chronic cor pulmonale (A) with septal flattening D-shaped septum on parasternal long-axis view parasternal long-axis (PLAX) (B). Right ventricular (RV) pressure and volume overload with persistent septal flattening throughout the cardiac cycle is seen on M-mode echocardiography (C). RV hypertrophy is also present. Marked right heart dilatation is seen in right ventricular inflow and apical four-chamber views (D,E). Note the linear echodensities indicative of a dual-chamber pacemaker in E.

Double Chamber

Fig. 13. Parasternal short-axis view (PSAX) showing grossly dilated right ventricle a patient with chronic pulmonary hypertension and chronic cor pulmonale (A) with septal flattening D-shaped septum on parasternal long-axis view parasternal long-axis (PLAX) (B). Right ventricular (RV) pressure and volume overload with persistent septal flattening throughout the cardiac cycle is seen on M-mode echocardiography (C). RV hypertrophy is also present. Marked right heart dilatation is seen in right ventricular inflow and apical four-chamber views (D,E). Note the linear echodensities indicative of a dual-chamber pacemaker in E.

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