Assement of Left Ventricular Function Before Decannulation in Cardiac Surgery :Visual Estimation vs TEE

Condition(s) studied

Investigational drug(s) / intervention(s)

Intraoperative Left Ventricular Function Assessment: Left ventricular function will be assessed during the decannulation phase of cardiopulmonary bypass using two diagnostic methods: (1) visual estimation of ventricular contractility by the cardiac surgeon (eyeballing) and (2) objective measurement using intraoperative transesophageal echocardiography (TEE). No experimental procedure, medication, or additional intervention will be applied. Both assessments are part of standard intraoperative monitoring in cardiac surgery. Data from both methods will be collected simultaneously to compare accuracy, agreement, and diagnostic performance.

Study summary

This study aims to evaluate the diagnostic performance of the cardiovascular surgeon's visual estimation of LV function before decannulation following cardiopulmonary bypass, using TEE results as the reference standard.

Eligibility

Primary outcome measure(s)

• Agreement Between Surgeon Visual Estimation and TEE-Derived Left Ventricular Ejection Fraction — During the decannulation phase of cardiopulmonary bypass (intraoperative period)
  This outcome evaluates the level of agreement between the cardiac surgeon's visual estimation (eyeballing) of left ventricular systolic function and the ejection fraction measured by intraoperative transesophageal echocardiography (TEE). Agreement will be quantified using statistical measures such as Cohen's kappa coefficient and correlation coefficients. Visual estimation categories (e.g., normal, moderately reduced, severely reduced) will be compared with corresponding TEE-derived EF classifications.

Trial sites (1)

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