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Multicenter Experience Using a New Prototype Transnasal Transesophageal Echocardiography Probe.
Kirk T. Spencer1, Martin Goldman, Bernard Cholley
1The University of Chicago, Department of Medicine, Section of Cardiology, 5841 South Maryland Avenue, MC 5084, Chicago, IL 60637.
Echocardiography (Mount Kisco, N.Y.)
|February 15, 2001
Summary
A new miniaturized transesophageal probe (TEE) is safe and effective for critical care patients, offering diagnostic imaging and prolonged monitoring capabilities. This technology overcomes limitations of current probes in intensive care settings.
Area of Science:
- Cardiology
- Medical Imaging
- Critical Care Medicine
Background:
- Transesophageal echocardiography (TEE) is vital for diagnosing cardiac conditions, especially when transthoracic imaging is insufficient.
- Current TEE probes face size limitations in critical care environments.
- A prototype miniaturized TEE probe was developed to address these challenges.
Purpose of the Study:
- To evaluate the feasibility, safety, and efficacy of a novel miniaturized transesophageal probe in critical care settings.
- To assess the probe's performance in a diverse patient population, including those in intensive care and on mechanical ventilation.
Main Methods:
- A prototype miniaturized transesophageal probe was utilized across five medical centers for 194 examinations.
- Data collected included patient demographics, intensive care unit (ICU) status, mechanical ventilation, intubation method, and procedure duration.
- Success rates for nasal and oral intubation were recorded, alongside patient tolerance and duration of monitoring.
Main Results:
- The study involved 194 examinations, with 43% of patients in the ICU and 39% mechanically ventilated.
- Nasal intubation with the miniaturized probe was successful in 88.5% of cases, while oral intubation was successful in all instances.
- The probe demonstrated good patient tolerance, with 25% of procedures exceeding one hour; nasal intubation was more common in ICU and ventilated patients.
Conclusions:
- Transesophageal echocardiography using the miniaturized probe is feasible and safe in critically ill, multi-instrumented patients.
- The probe provides adequate diagnostic imaging and supports prolonged use, making it suitable for serial monitoring of ventricular performance.
- This miniaturized TEE probe represents a significant advancement for cardiac assessment in intensive care settings.