Antagonism Research Between Antiemetics Agents (Droperidol, Dexametasone, Ondansetron) and Acetaminophen in Thyroidectomy's Post-operative Analgesia. (ANPATHY)
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Purpose
The purpose of our study is to determine if there is an antagonism between drugs used in the prevention of postoperative nausea and vomiting (PONV) on the analgesia led by acetaminophen after thyroidectomy.
| Condition | Intervention | Phase |
|---|---|---|
|
Interaction Between Antiemetic Drugs and Paracetamol |
Drug: ondansetron Drug: Droperidol Drug: Dexamethasone |
Phase 3 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor) Primary Purpose: Treatment |
| Official Title: | Antagonism Research Between Antiemetics Agents (Droperidol, Dexametasone, Ondansetron) and Acetaminophen in Thyroidectomy's Post-operative Analgesia. |
- "electric nociception threshold" measured by PainMatcher [ Time Frame: during 2 hours after thyroidectomy in the postoperative care unit ] [ Designated as safety issue: Yes ]
The PainMatcher is a pain self-assessment device using the electric stimulation of the median nerve. The patient maintains a pressure on an electrode box between the thumb and the index finger, creating a current of increasing intensity. The threshold of pain sensation is obtained when the patient releases his fingers from the electrode box. So whe raise the electric nociceptive threshold showned by the PainMatcher. We realize two measures and consider the second one.
objective measure.
- numeric rating scale score [ Time Frame: during 2 hours after thyroidectomy in the postoperative care unit ] [ Designated as safety issue: Yes ]
to evaluate the sensation of pain with a 11 levels going from 0 ( no pain) to 10 ( worst pain imaginable).
subjective measure.
- need in rescue analgesia with nefopam in case of numeric rating scale score > 4 [ Time Frame: during 2 hours after thyroidectomy in the postoperative care unit ] [ Designated as safety issue: Yes ]
- presence of postoperative nausea and vomiting [ Time Frame: during the 2 hours after thyroidectomy in the postoperative care unit ] [ Designated as safety issue: Yes ]
| Enrollment: | 66 |
| Study Start Date: | June 2009 |
| Study Completion Date: | June 2011 |
| Primary Completion Date: | January 2011 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Active Comparator: ONDANSETRON (OS)
patients receiving ondansetron at the begining of the surgery to prevent postoperative nausea and vomiting (PONV); and paracetamol at the end of the surgery for postoperative analgesia.
|
Drug: ondansetron
ondansetron: 4 mg intraveinous administration afer the induction of anesthesia.
|
|
Active Comparator: DROPERIDOL (DRO)
patients receiving droperidol at the begining of the surgery to prevent PONV; and paracetamol at the end of the surgey for postoperative analgesia.
|
Drug: Droperidol
droperidol: 1.25 mg intraveinous administration after the induction of anesthesia.
|
|
Active Comparator: DEXAMETHASONE (DEXA)
patients receiving dexamethasone at the begining of the surgery to prevent PONV; and paracetamol at the end of the surgey for postoperative analgesia.
|
Drug: Dexamethasone
dexametasone: 4 mg intraveinous administration after the induction of anesthesia.
|
Detailed Description:
It was shown that there was an antagonism of the ondansetron on the analgesia led by acetaminophen in a model of nociception by electrical stimulation using the PainMatcher in healthy volunteers. Our study try to determinate if a such antagonism exist in clinical conditions : 66 patients with an Apfel-score II undergoing thyroidectomy were randomized in 3 equal groups. Each group received an antiemetic (ondansetron, droperidol or dexamethasone) at the begining of the intervention and paracetamol at the end of the intervention for the postoperative analgesia. During 2 hours in the postoperative unit, we raised : the electrical pain's threshold with the PainMatcher, the numeric pain intensity scale and the presence of nausea or vomiting. For each patients we determined the cytochrome P450 2D6 activity that should have been able to explain a diminution of ondansetron's efficiency. Paracetamol blood levels were also raised in the postoperative unit.
Eligibility| Ages Eligible for Study: | 18 Years to 70 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- patients undergoing thyroidectomy without lymph node dissection
- American Society of Anesthesiologists physical status from I to III
- Apfel-score equal to 2
- informed consent signed
Exclusion Criteria:
- pregnant and breast-feeding women
- addictive disorders
- psychic diseases
- allergy or contra-indication to a drug used in the study
- presence of postoperative nausea or vomiting
- administration of glucocorticoid for protecting recurent laryngeal nerve.
- protocol not respected
- protocol refused by the patient
- intellectual handicap
Contacts and Locations
More Information
Publications:
| Responsible Party: | University Hospital, Lille |
| ClinicalTrials.gov Identifier: | NCT01679093 History of Changes |
| Other Study ID Numbers: | 2008-002701-40 |
| Study First Received: | August 31, 2012 |
| Last Updated: | August 31, 2012 |
| Health Authority: | France: Afssaps - Agence française de sécurité sanitaire des produits de santé (Saint-Denis) |
Keywords provided by University Hospital, Lille:
|
postoperative analgesia paracetamol 5-HT3 antagonist ondansetron PainMatcher |
Additional relevant MeSH terms:
|
Acetaminophen Dexamethasone Droperidol Ondansetron Antiemetics Dexamethasone acetate Dexamethasone 21-phosphate BB 1101 Antipyretics Physiological Effects of Drugs Pharmacologic Actions Analgesics, Non-Narcotic Analgesics Sensory System Agents Peripheral Nervous System Agents |
Central Nervous System Agents Therapeutic Uses Autonomic Agents Gastrointestinal Agents Anti-Inflammatory Agents Glucocorticoids Hormones Hormones, Hormone Substitutes, and Hormone Antagonists Antineoplastic Agents, Hormonal Antineoplastic Agents Protease Inhibitors Enzyme Inhibitors Molecular Mechanisms of Pharmacological Action Adjuvants, Anesthesia Antipsychotic Agents |
ClinicalTrials.gov processed this record on May 19, 2013