Efficacy of PC6 Electroacupuncture in the Prevention of Nausea Vomiting in Caesarean Patient Under Spinal Anaesthesia
NCT ID: NCT04801277
Last Updated: 2021-03-16
Study Results
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Basic Information
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UNKNOWN
NA
100 participants
INTERVENTIONAL
2020-09-01
2021-04-30
Brief Summary
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Detailed Description
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Nausea and vomiting are common intraoperative and postoperative complications in women having caesarean section under neuraxial anesthesia.Compared to the plethora of literatures about PONV, little attention has been paid to nausea vomiting occurring during or after regional anesthesia. These techniques gain increasing attention.
Current literature review indicates a high incidence of IONV during CS under spinal anesthesia up to 80%4. The etiology of intraoperative and postoperative nausea and vomiting (IONV and PONV) is multifactorial. Pregnant women are already likely to suffer from nausea and vomiting because of the pregnancy itself. According to Apfel's score predictive of PONV score that consists of four ascertained risk factors (female, non-smoker, opioid use, previous PONV events or motion sickness), parturients often meet at least two of these criteria with their gender and non-smoker status.
Despite the practice of prescribing antiemetic prophylaxis medication, the incidence of nausea and vomiting in CS patient is still up to 30-50%6. The efficacy of antiemetic drugs is limited and their administration is not free from side effects. Nausea and vomiting not only causes dehydration, electrolyte imbalance and adversely affects wound healing, but also leads to increased wound pain, discomfort, and anxiety among post partum patient. This may further lead to increased medical expenses and extended hospital stay, leaving patient with the overall negative surgical experience. Hence, the idea of multimodal therapy in prophylaxis of IONV and PONV arises.
Non-pharmacological techiniques such as acupuncture, acupressure,and transcutaneous acupoint electrical stimulation of the pericardium 6(PC6) Neiguan point have been studied for the prevention of PONV. The increasing popularity of these modalities is, in part, due to their low cost, simplicity, and in obstetrics, concern about placental transfer and secretion in breast milk of drugs.
It is hypothesized that PC6 electroacupunture stimulation will reduce the incidence of IONV and PONV and reduce the usage of antiemetic drugs in post partum patient.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Acupuncture on PC6 and LI4
Acupuncture on bilateral acupoints, that are PC6 and LI4. The pericardium meridian PC6 point (Neiguan) is defined as follows. The patient's four fingerbreadths will be placed on the medial aspect of their forearm with the edge of the 4th finger on the wrist crease. This is then subtracted from the width of the interphalangeal joint of her thumb. The point between the tendons of extensor carpi radialis and palmaris longus was the pericardium meridian PC6 point (Neiguan). The large intestine LI4 point (Hegu) located on the dorsum of the hand, between the first and second metacarpal bones, at the midpoint of the second metacarpal bone and close to its radial border.
Electroacupuncture on acupoints vs sham points
Randomized double blinded clinical trial
Acupuncture on Sham acupoints
Acupuncture on bilateral non acupoints. In sham/placebo group, patient will have the acupuncture needles inserted at non-acupoint 2cm radial to PC6 and between 2nd and 3rd metacarpal bone bilaterally, superficial skin piercing (adequate depth to let patient feels needle is inserted)
Electroacupuncture on acupoints vs sham points
Randomized double blinded clinical trial
Interventions
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Electroacupuncture on acupoints vs sham points
Randomized double blinded clinical trial
Eligibility Criteria
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Inclusion Criteria
* American Society of Anaesthesiology class II patients only
Exclusion Criteria
* Patients who required emergent surgery where delay is inappropriate and can compromise mother and foetus, e.g. foetal distress, foetal bradycardia, chorioamnionitis, cord prolapse, severe preeclampsia
* Patients with documented or known history of allergy to granisetron
* Morbid obesity (BMI\>40) as morbid obesity patient will be not be given intrathecal morphine due to increase risk of post operative respiratory depression.
* Patients using any antiemetic drug including dexamethasone for 24 hours prior to Caesarean section (CS)
* Patient who had an implanted pacemaker or defibrillator device. (safety of the use of electroacupuncture on these patient is questionable)
* Patient who received opioids prior to CS (opioid is known to have nausea and vomiting side effect)
* Patient refusal
* Severe preeclampsia, gestational diabetes mellitus on treatment, neurological or cardiac disease.
18 Years
45 Years
FEMALE
Yes
Sponsors
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Clinical Research Centre, Malaysia
OTHER
Responsible Party
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Chan See Yun
Obstetric Anaesthesiologist and acupuncturist
Principal Investigators
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See Yun Chan
Role: PRINCIPAL_INVESTIGATOR
Hospital Raja Permaisuri Bainun Ipoh
Locations
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Hospital Raja Permaisuri Bainun Ipoh
Ipoh, Perak, Malaysia
Countries
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Central Contacts
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Facility Contacts
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References
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Macario A, Weinger M, Truong P, Lee M. Which clinical anesthesia outcomes are both common and important to avoid? The perspective of a panel of expert anesthesiologists. Anesth Analg. 1999 May;88(5):1085-91. doi: 10.1097/00000539-199905000-00023.
Jelting Y, Klein C, Harlander T, Eberhart L, Roewer N, Kranke P. Preventing nausea and vomiting in women undergoing regional anesthesia for cesarean section: challenges and solutions. Local Reg Anesth. 2017 Aug 9;10:83-90. doi: 10.2147/LRA.S111459. eCollection 2017.
Balki M, Carvalho JC. Intraoperative nausea and vomiting during cesarean section under regional anesthesia. Int J Obstet Anesth. 2005 Jul;14(3):230-41. doi: 10.1016/j.ijoa.2004.12.004.
Arnberger M, Stadelmann K, Alischer P, Ponert R, Melber A, Greif R. Monitoring of neuromuscular blockade at the P6 acupuncture point reduces the incidence of postoperative nausea and vomiting. Anesthesiology. 2007 Dec;107(6):903-8. doi: 10.1097/01.anes.0000290617.98058.d9.
Pierre S, Benais H, Pouymayou J. Apfel's simplified score may favourably predict the risk of postoperative nausea and vomiting. Can J Anaesth. 2002 Mar;49(3):237-42. doi: 10.1007/BF03020521.
Provided Documents
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Document Type: Study Protocol
Document Type: Informed Consent Form
Other Identifiers
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NMRR-19-3279-51524
Identifier Type: -
Identifier Source: org_study_id
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