"Diagnostic Accuracy of Ultrasound Compared to Epidurography for Epidural Catheter Localization"
Conditions
- Open Abdominal Surgery
- Epidural Analgesia
Interventions
- DEVICE: Doppler color and M-Mode ultrasound
- DEVICE: Epidurography
Sponsor
Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran