This study targets patients undergoing laparoscopic gastric cancer surgery. The investigators would like to compare two factors that influence intracranial pressure through optic nerve sheath diameter measurement. First factor is intraperitoneal pressure. Second factor is epidural pressure. The investigators divided the patients into three groups. Group A is patients with laparoscopic gastric surgery who received epidural injection through an thoracic epidural catheter. Group B is patients with laparoscopic gastric surgery who don't received epidural injection through an thoracic epidural catheter. Group C is patients with open gastric surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
60
The investigators inject drugs through a catheter inserted into the thoracic epidural space to control pain after surgery in patients undergoing gastric surgery by laparoscopy.
The investigators don't epidural injection to find out the effect of only inter-abdominal pressure on intracranial pressure.
KeimyungUniversity
Daegu, South Korea
RECRUITINGT0 : Optic nerve sheath diameter
The investigator measures Optic nerve sheath diameter by ultrasonography.
Time frame: 10 minutes after anesthesia induction
T1 : Optic nerve sheath diameter
The investigator measures Optic nerve sheath diameter.
Time frame: 10min after entering the laparoscope
T2 : Optic nerve sheath diameter
The investigator measures Optic nerve sheath diameter.
Time frame: 1hour after entering the laparoscope
T3 : Optic nerve sheath diameter
The investigator measures Optic nerve sheath diameter.
Time frame: 10min after the laparoscopy comes out
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.