An observational study in Ventricular Function, Right and Echocardiography, Transesophageal, sponsored by Milton S. Hershey Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-06-24.
Sponsored by Milton S. Hershey Medical Center · Observational
Transesophageal echocardiography (TEE) is becoming a more prevalent method of monitoring and diagnosis in the perioperative setting for critically ill patients and patients undergoing cardiac surgery. Many TEE measurements are extrapolated from transthoracic echocardiography (TTE) data and have not validated by transesophageal means. The aim of this study is to validate TEE assessment of right ventricular function by comparing them to simultaneously measured TTE measurements.
Likewise, there are currently no agreed upon values for RV free wall strain. Therefore, the investigators will attempt to define a range of normal values of RV free wall strain as compared to the other measures of RV function.
Traditionally, all echocardiographic measurements have been studied utilizing TTE. Therefore the normal values and ranges for pathology findings have been defined by transthoracic means alone. TEE offers different images planes when compared to TTE, which may make the measurements obtained differ from those obtained by TTE. In the operating room environment the vast majority of echocardiography is completed by transesophageal means for many reasons; largely access to the patient and the continuous use of TEE as a hemodynamic monitor. However, given the fact that most echocardiographic measurements have only been validated by TTE, there remains a question as to the validity or precision of TEE-derived measurements.
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All patients undergoing elective cardiac surgery, which as a standard of care, requires transesophageal echocardiography.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
TEE measures of right ventricular function
Also known as: TEE
TTE measures of right ventricular function
Also known as: TTE
Right ventricular index of myocardial performance (RIMP)
Right ventricular index of myocardial performance (RIMP) will be measured using both TTE and TEE.
Time frame: Immediately following the induction of anesthesia and TEE probe placement
Tricuspid annular plane systolic excursion (TAPSE)
Tricuspid annular plane systolic excursion (TAPSE) will be measured using both TTE and TEE.
Time frame: Immediately following the induction of anesthesia and TEE probe placement
Right ventricular fractional area change (FAC)
Right ventricular fractional area change (FAC) will be measured using both TTE and TEE.
Time frame: Immediately following the induction of anesthesia and TEE probe placement
RV annular systolic velocity (S')
RV annular systolic velocity (S') will be measured using both TTE and TEE.
Time frame: Immediately following the induction of anesthesia and TEE probe placement
RV free wall longitudinal strain
RV free wall longitudinal strain will be measured using both TTE and TEE.
Time frame: Immediately following the induction of anesthesia and TEE probe placement
Ease of obtaining appropriate TEE measures of right ventricular function
Ease of acquisition will be assessed by the echocardiographers
Time frame: Within 15 minutes following anesthesia induction
Define values for normal right ventricular free wall strain
The data collected will be used to define normal values for right ventricular free wall strain
Time frame: Through study completion, an estimate of 1 year
Plan to share: No
This study is completed, as verified in Jun 2019. You cannot join it, but the record below documents what was studied.
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