The investigators aimed to compare the effects of perioperative anesthesia consumption of ultrasound guided subcostal transversus abdominis plane and paravertebral block in laparoscopic cholecystectomy.
Fifty patients aged 18 - 65 years, American Society of Anesthesiologists (ASA) I-II-III, scheduled for laparoscopic cholecystectomy were enrolled into the study. Patients were allocated into two groups to receive ultrasound guided subcostal transversus abdominis plane block (group T, n=25) or ultrasound guided paravertebral block (group P, n=25). In all patients; anesthesia was induced with iv propofol (2 mg.kg-1) and maintained with total intravenous anesthesia (TIVA) in a mixture of 50 % nitrous oxide and 50 % oxygen with a total gas flow rate of 4 L min-1. Neuromuscular relaxation was induced with iv rocuronium (0.5 mg.kg-1). Propofol (2 mg / cc, 2-4 mg / kg / h) and remifentanil (13.3 mcg / cc, 1-3 mcg / kg / h) combination was used in TIVA. Propofol and remifentanil rates increased or reduced according to the patient's hemodynamic response. Prior to start surgery, ultrasound guided subcostal transversus abdominis plane or paravertebral block was performed in patients . Blood pressure, heart rate and peripheral oxygen saturation,TIVA consumption of 0, 5, 10, 15, 30, 60 min were recorded for all patients.Before the end of surgery, tramadol was administered (2 mg / kg) for all patients. All patients were evaluated at postoperative 2th, 4th, 8th, 12th, 24th hours with; operation time, heart rate, blood pressure, peripheral oxygen saturation, visual pain scores (VAS), analgesic consumption, complications (hypotension, anaphylaxis, hematoma, IV injection, intra-abdominal organ injury, pneumothorax ) and patient satisfaction status were recorded. In the postoperative period if there is additional analgesic requirements (VAS≥4) tramadol 2 mg.kg-1 was administered as IV. The first hour is needed analgesia were recorded.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
50
Ultrasonography Assisted Subcostal TAP blockage: In plane technique was applied and 22 G needle (BRAUN Stimuplex D Plus 0,71\*50 mm 22G\*2) was used. Intravascular injection was eliminated after the passage of rectus sheath by negative aspiration. 0,5-1 ml local anesthetic was applied directly to confirm the right place. 10 cc bupivacain ( 0,5 % Marcain flacon, Astra Zeneca, Sweeden) and 5 cc lidocaine was injected to the site. The same procedure was applied to the opposite site. we investigated amount of TIVA during the operation, postoperative Visual Analog Scores and the time that the pain free time.
Ultrasonoraphy assisted Thoracic Paravertebral blockage application: In-plane or out-of-plane technique was used with stimuplex needle (BRAUN Stimuplec D Plus 0,71\*50 mm 22 G\* 2'', 15°). Popping sensation that was felt by the penetration of the internal intercostal membrane, guided to paravertebral space. Intravascular injection was eliminated by negative aspiration. 0,5 - 1 ml local anesthetic injection was administered to show the displacement of pleura downward that confirmed the place of the needle in the right place. Then 10 cc bupivacain (% 0.5 Marcaine® flacon, Astra Zeneca, Sweeden) and 5 cc lidocaine was injected to the site. we investigated amount of TIVA during the operation, postoperative Visual Analog Scores and the time that the pain free time.
anesthetic and opioid consumption during operation
Time frame: six months
postoperative VAS scores
Time frame: six months
duration of analgesia
Time frame: six months
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