The Use of Ultrasound to Measure Depth of Thoracic Epidural Space

Use of Ultrasound to Measure Depth of Thoracic Epidural Space Compared With Blind Technique

The purpose of the study is to evaluate the use of ultrasound scanning of the thoracic spine to define the point of insertion and the depth of the epidural space compared to the blind technique.

The study hypothesis is the use of Ultrasound will improve the success rate of epidural placement and may also decrease the rate of complications.

Inclusion Criteria:

• Patients 18 years and older having a thoracic epidural catheter
• Both male and female patients.

Exclusion Criteria:

• Pediatric population < 18 years of age
• Pregnancy
• Prisoners
• Absolute Contraindication to thoracic epidural placement severe scoliosis or deformity,
• Patients with previous spine surgery or hardware implanted at level of epidural placement,
• Anticipated ventilation postoperatively for a period more that 24 hrs
• Lack of patient consent to enroll in the study