Overview

Transesophageal echocardiography (TEE) involves the insertion of an ultrasound probe into the esophagus to obtain detailed cardiac images. It provides high-resolution images of cardiac structures and is essential for cardiac surgery and critical care.

TEE is the gold standard for intraoperative cardiac imaging, providing real-time assessment of cardiac function, valve pathology, and surgical outcomes. It is crucial for cardiac surgery, hemodynamic monitoring, and diagnosis of cardiac pathology.

Indications

Cardiac Surgery

Intraoperative monitoring and assessment

Valve Surgery

Assessment of valve function and repair

Coronary Artery Bypass

Assessment of ventricular function

Heart Transplantation

Donor and recipient assessment

Critical Care

Hemodynamic assessment in ICU

Cardiac Tamponade

Emergency assessment of pericardial effusion

Endocarditis

Assessment of valve vegetations

Cardiac Mass

Evaluation of intracardiac masses

Contraindications

Absolute Contraindications

Patient refusal
Esophageal stricture or obstruction
Recent esophageal surgery
Esophageal perforation
Severe coagulopathy (INR >2.0, platelets <50,000)

Relative Contraindications

Esophageal varices
Recent esophageal trauma
Severe cervical spine injury
Anticoagulation therapy
Esophageal diverticula
Severe thrombocytopenia

📋 Equipment Checklist

Check off items as you gather them:

Pre-procedure Preparation

Preparation includes patient assessment (esophageal pathology, coagulation status), equipment check (TEE probe, ultrasound machine), informed consent, and understanding the cardiac anatomy and standard views.

Step-by-Step Procedure

Step 1: Patient Assessment

Assess patient for contraindications, check coagulation status, perform airway examination, and obtain informed consent.

⚠️ Common Mistakes to Avoid:

  • Inadequate assessment
  • Missing contraindications
  • Poor airway evaluation

💡 Pro Tip:

Always check for esophageal pathology and coagulation status before TEE.

Step 2: Equipment Setup

Prepare TEE probe, check ultrasound machine, apply lubricant, and ensure adequate monitoring.

⚠️ Common Mistakes to Avoid:

  • Broken equipment
  • Poor lubrication
  • Inadequate monitoring

💡 Pro Tip:

Always test the TEE probe and ultrasound machine before starting.

Step 3: Patient Positioning

Position patient with head extended, insert bite block, and prepare for probe insertion.

⚠️ Common Mistakes to Avoid:

  • Poor positioning
  • No bite block
  • Inadequate preparation

💡 Pro Tip:

Use proper positioning and always use a bite block to protect the probe.

Step 4: Probe Insertion

Insert TEE probe gently through mouth, advance to esophagus, and position for optimal imaging.

⚠️ Common Mistakes to Avoid:

  • Forceful insertion
  • Wrong angle
  • Esophageal injury

💡 Pro Tip:

Insert probe gently and never force. Use proper technique to avoid injury.

Step 5: Image Acquisition

Obtain standard TEE views: mid-esophageal 4-chamber, 2-chamber, long-axis, and transgastric views.

⚠️ Common Mistakes to Avoid:

  • Poor image quality
  • Incomplete views
  • Wrong probe position

💡 Pro Tip:

Learn standard TEE views and optimize image quality for each view.

Step 6: Image Interpretation

Interpret images for cardiac function, valve pathology, and surgical assessment.

⚠️ Common Mistakes to Avoid:

  • Wrong interpretation
  • Missing pathology
  • Poor documentation

💡 Pro Tip:

Take time to interpret images carefully. Document all findings.

Step 7: Probe Removal

Remove probe gently, clean equipment, and monitor for complications.

⚠️ Common Mistakes to Avoid:

  • Forceful removal
  • Poor cleaning
  • Inadequate monitoring

💡 Pro Tip:

Remove probe gently and clean thoroughly after use.

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Post-procedure Care

Post-procedure care includes monitoring for complications (esophageal injury, bleeding), assessing for sore throat, and documenting the procedure details and findings.

Complications & Management

Complication Incidence Signs Management Prevention
Esophageal injury 0.1-0.5% Chest pain, dysphagia, fever, mediastinitis Immediate evaluation, antibiotics, surgical consultation Gentle technique, proper lubrication, avoid force
Dental injury 1-3% Tooth damage, bleeding, pain Document injury, dental consultation, monitoring Use bite block, gentle technique, proper positioning
Sore throat 10-20% Throat pain, dysphagia, voice changes Analgesics, time, reassurance Gentle technique, adequate lubrication, proper positioning
Bleeding 0.5-2% Blood on probe, hematemesis, melena Remove probe, endoscopy, blood products if needed Check coagulation status, gentle technique
Arrhythmias 1-3% Premature beats, bradycardia, heart block Remove probe, antiarrhythmics, monitoring Gentle technique, avoid prolonged manipulation
Infection <0.1% Fever, chest pain, mediastinitis Antibiotics, surgical consultation, monitoring Proper probe cleaning, sterile technique

Clinical Pearls

💡

Always check for esophageal pathology before TEE - safety first.

🎯

Use gentle technique - never force the probe insertion.

Learn standard TEE views - they are essential for proper assessment.

🔍

Take time to interpret images - quality is more important than speed.

📊

Document all findings - TEE reports are crucial for patient care.

🎨

Practice sterile technique - clean probe thoroughly after use.

⚠️

Be prepared for complications - have emergency equipment ready.

🔄

Monitor for complications - especially in the first 24 hours.

📏

Use appropriate probe size - too large can cause injury.

🎪

TEE is the gold standard for intraoperative cardiac imaging.