Evaluation of Effectivity of Erector Spina Plane Block With Different Levels

Evaluation of The Postoperative Analgesic Effectivity of Erector Spina Plane Block With Different Injection Levels on Patients Undergoing Laparoscopic Cholecystectomy Surgery : A Randomised Controled Study

In last years, erector spinae plane block is widely used in abdominal and thoracic surgeries. Laparoscopic cholecystectomy is one of the most commonly performed surgical operations. In this study, the investigators will evaluate the effectiveness of erector spina plan block with different injection levels for postoperative analgesia on patients undergoing laparoscopic cholecystectomy surgery.

Three groups were planned for this study.Randomization was planned with the closed envelope method. İn the first group, the ESP(erector spinae plane) block procedure will be applied from the T7 level bilaterally and in the second group it will be applied from the T9 level bilaterally. ESP block procedure will not be applied in the third group and this group will be considered as the control group. A comparison of NRS (Numeric Rating Scale) and morphine consumption will be planned for all groups of patients at 1-th, 4-th, 8-th.,12-th and,24-th postoperative hours.

Inclusion Criteria:

• ASA 1-2 Elective cholecystectomy surgery
• 18-65 years old patients

Exclusion Criteria:

• ASA 3-4 patients
• Patient refusal
• several lung and heart disease
• Contraindications to regional anesthesia
• BMİ > 35 patients
• Known allergy to local anesthetics
• Bleeding diathesis
• Use of any anti-coagulants
• Severe kidney or liver disease
• Patient with psychiatric disorders