This study will investigate the hypothesis that preoperative erector spinae plane (ESP) block will reduce the incidence of postoperative nausea and vomiting (PONV) in patients undergoing elective lumbar disc herniation (LDH) surgery. PONV was defined as the presence of nausea and vomiting within 24 hours postoperatively.
The study will include patients aged 18 years and older, with (American Society of Anesthesiologists) ASA physical status I and II, and scheduled for single-level lumbar disc herniation surgery under general anesthesia. Patient characteristics (age, gender, body mass index, etc.), Apfel score, postoperative nausea and vomiting (PONV) status, intraoperative opioid use requirement, surgical duration, postoperative pain status, rescue analgesic and emetic requirement will be recorded. The primary outcome parameter will be the PONV incidence within the postoperative 24 hours. PONV severity during this period will be assessed using a Likert scale from 0 to 10. PONV will be defined as vomiting, marked nausea (numerical rating scale \[NRS\] ≥4), and/or need for rescue medication. Patients will be assessed for PONV at 0, 2, 4, 12, and 24 hours using the Likert scale. Nausea and its severity, vomiting attacks, need for intraoperative opioid use, pain and its severity, need for additional analgesics, and administration of antiemetic rescue medication will be evaluated as secondary outcome parameters.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
81
Ankara Bilkent City Hospital
Ankara, Ankara, Çankaya, Turkey (Türkiye)
PONV
The primary outcome of the study was the incidence of postoperative nausea and/or vomiting
Time frame: 24 hours
Severity of nausea
The degree of nausea was evaluated using the visual analogue scale (VAS), with 0 indicating no nausea or vomiting and 10 indicating the most severe form of unbearable nausea or vomiting. When the PONV score was greater than 4 or vomiting occurs
Time frame: 24 hours
11 - point numerical rating scale (NRS)
11-point numerical rating scale for pain (0='no pain' and 10='worst pain possible pain') were explained.
Time frame: 24 hours
Rescue antiemetic requirement
Number of additional antiemetic applications
Time frame: 24 hours
Rescue analgesic requirement
Number of additional analgesic applications
Time frame: 24 hours
intraoperative opioid requirement
To maintain the bispectral index (BIS) between 40-60, remifentanil will be initiated and titrated between 0.05-0.25 mcg/kg/min, taking into account a 20% increase in MAP (mean arterial pressure) compared to the initial value and a 15% increase in heart rate compared to the initial value.
Time frame: intraoperative time
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