Evaluation of Effectivity of Erector Spina Plane Block With Different Levels
Condition: Postoperative Pain
MeSH terms: Pain, Postoperative
Study type: Interventional

Summary: 
      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.
    

Detailed description: 
      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.
    

Intervention name(s): T7 Level Erector Spinae Plane Block; T9 Level Erector Spinae Plane Block; control group
Intervention type(s): Procedure; Procedure; Drug
Intervention description(s): ESP block is planned after the completion of surgery and before the extubation. Its application will be planned from the T7 level bilaterally when the patients are turned to the right lateral position. A linear ultrasound probe will be placed in the longitudinal parasagittal orientation 3 cm to lateral of T7 spinous process.
After imaging of erector spina musceles and transvers process of 7 th trorocal vertebrae, an ultrasound-guided local anaesthetic mixture ( 0.5% bupivacaine 15 cc + 2% lidocaine 5 cc) will be applied to the region between spinae muscles and transverse process using a needle of 22 gauge & 8cm directed from cranial to caudal.
After application of the same procedure to the other side, the patients will be woken-up and patient-controlled analgesia consisting of intravenous morphine will be planned for all of them.
Additionally, at postoperative 1.,4.,8.,12.,24. hours, NRS scales and morphine consumption will be recorded.; ESP block is planned after the completion of surgery and before the extubation. Its application will be planned from the T9 level bilaterally when the patients are turned to the right lateral position. A linear ultrasound probe will be placed in the longitudinal parasagittal orientation 3 cm to lateral of T9 spinous process.
After imaging of erector spina musceles and transvers process of 9 th trorocal vertebrae, an ultrasound-guided local anaesthetic mixture ( 0.5% bupivacaine 15 cc + 2% lidocaine 5 cc) will be applied to the region between spinae muscles and transverse process using a needle of 22 gauge & 8cm directed from cranial to caudal.
After application of the same procedure to the other side, the patients will be woken-up and patient-controlled analgesia consisting of intravenous morphine will be planned for all of them.
Additionally, at postoperative 1.,4.,8.,12.,24. hours, NRS scales and morphine consumption will be recorded.; 24 hours morphine consumption will be recorded using the patient controlled analgesia device with intravenous morphine.
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Single (Care Provider)
Primary purpose: Supportive Care
Keywords: postoperative pain; erector spinae plane blok; laparoscopic cholecystectomy