Skip to content

Analgesic Effects of Intrathecal Morphine and Bilateral Erector Spina Plane Block in Elective Cesarean Section

Can Erector Spinae Plane Block Replace Intrathecal Morphine in Cesarean Section? a Prospective Randomized Controlled Study on Opioid Consumption

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05698927
Enrollment
82
Registered
2023-01-26
Start date
2023-02-01
Completion date
2023-09-30
Last updated
2024-09-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Opioid Use, Postoperative Pain

Keywords

postoperative pain, opioid consumption, erector spinae plane block, intrathecal morphine

Brief summary

Cesarean section cause severe pain due to surgical incision, abdominal wall retraction and visceral organ movements. Cesarean section can be performed with general anesthesia, spinal anesthesia, epidural anesthesia and combined spinal epidural anesthesia methods. Because of the possibility of aspiration pneumonia in pregnant women are under general anesthesia, the awareness of anesthesia in the mother during the operation due to insufficient anesthesia, unsuccessful intubation, respiratory complications in the mother and newborn and low APGAR scores, regional anesthesia is superior to general anesthesia in elective cesarean section operations. Spinal anesthesia, abdominal wall blocks such as erector spinae plane block, parenteral and intrathecal opioids may be used for postoperative analgesia in cesarean section operations. Intrathecal morphine can cause postoperative nausea-vomiting, itching, respiratory depression. Erector spina plane block can provide effective pain control and reduce opioid consumption. The primary implication of this study is to compare postoperative pain scores and opioid consumption on elective cesarean section patients under spinal anesthesia with intrathecal morphine or erector spina block in addition to spinal anesthesia.

Interventions

PROCEDUREErector Spinae Plane Block (bilaterally, via 20ml % 0.25 bupivacain) and Intrathecal Morphine (100 mcg)

Comparison of the postoperative opioid consumptions between Erector Spinae Plane Block (bilaterally, via 20ml % 0.25 bupivacain) and Intrathecal Morphine (100 mcg)

Sponsors

Marmara University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SCREENING
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Patients between 18 and 40 years old, ASA (American Society of Anesthesiologists) score I-II, undergoing elective cesarean section

Exclusion criteria

* Emergency cesarean section * The patients with major hepatic, cardiovascular or renal disease * The patients for whom spinal anesthesia is contraindicated * The patients who is allergic to any drugs that we use for this study * Patients who declined to participate in the study

Design outcomes

Primary

MeasureTime frameDescription
Opioid Consumption24 hoursComparing opioid (tramadol) consumption via intravenous Patient Controlled Analgesia (PCA) device

Secondary

MeasureTime frameDescription
Pain Scores24 hoursIn a Numerical Rating Scale (NRS), patients are asked to choose the number between 0 and 10, that fits best to their pain intensity. Zero usually represents 'no pain at all' whereas ten represents 'the worst pain ever possible'
Rescue analgesia24 hourswhen the patient's NRS score ≥ 4, diclofenac 75 mg intramuscular is given
Side effects of medications24 hoursIntravenous and intrathecal opioids can cause nausea-vomiting, itching, respirator depression

Other

MeasureTime frameDescription
Participant satisfaction24 hoursComparing pain with numeric rating scale (NRS) In a Numerical Rating Scale (NRS), patients are asked to choose the number between 0 and 10, that fits best to their pain intensity. Zero usually represents 'no pain at all' whereas ten represents 'the worst pain ever possible'
Apgar scores of newborns1st and 5th minute after the delivery.APGAR (Activity, Pulse, Grimace, Appearance, Respiration) score is a measure of the physical condition of a newborn infant. It is obtained by adding points (2, 1, or 0) for heart rate, respiratory effort, muscle tone, response to stimulation, and skin coloration; a score of 10 represents the best possible condition. It may be effected by intravenous or intrathecal opioids that is given to mother.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026