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Preoperative anxiety before cesarean section is common and may be severe. Stress consequences are often deleterious for the mother and for the upcoming newborn. Means to reduce anxiety before cesarean section are limited. Anxiolytic drugs are avoided in the context of the birth of a newborn. Auricular acupuncture has been shown to relieve anxiety disorders. The aim of this study is to evaluate the anxiolytic effect of auricular acupuncture administered before an elective cesarean section. Anxiety will be measured at T0: inclusion (approximately 1-2 hours before cesarean section) and T1: departure to surgical unit (approximately 30 minutes to 1 hour after T0). Patches (needle or needle-free) will be set up at T0 just after the initial anxiety assessment (anxiety Visual Analog Scale aVAS).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| : Auricular Acupuncture (needle patch) group A | Experimental | Needle patch: Patients receiving the auricular acupuncture protocol with needles inserted on adhesive tape. |
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| Needle-free patch: group P. | Placebo Comparator | Patients who received the auricular acupuncture protocol with adhesive tape without needles. |
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| No intervention: group C | No Intervention | Patients without any device or intervention. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Apply an auricular acupuncture protocol by stimulating specific points of the ear with needles inserted on adhesive tape (Pyonex®). | Device | Intervention Description : The auricular acupuncture protocol is based on an anxiolytic triad of three points selected according to the World Health Organization classification. These points are detected and located precisely by a differential detector starting with the right ear, and in the absence of response, the points are searched on the left ear. The detected points are treated by application of adhesive tape with needles of diameter 0.2 mm and length 0.9 mm. Data collected :
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| Measure | Description | Time Frame |
|---|---|---|
| Comparison of anxiety variation between group A (Auricular acupuncture, needle patch) and group P (needle-free patch) via visual analog scale. | Degree of reduction in anxiety VAS score between T0 and T1 and comparison between group A and group P. Anxiety will be assessed using a Visual Analogue Scale scoring between 0 (complete absence of anxiety) and 100 (greatest possible level of anxiety). | measured at the inclusion (T0) and 30min/1h after inclusion (T1). |
| Measure | Description | Time Frame |
|---|---|---|
| Potential placebo effect of auricular acupuncture by measuring Anxiety variation between the 3 groups. | Variation of anxiety VAS between T0 and T1 between the 3 groups (needle patch, needle-free patch and no intervention. Comparing the percentage of patients relieved by auricular acupuncture between the 3 groups (decrease of anxiety VAS score of at least 20%). | measured at the inclusion (T0), 30min/1h after inclusion (T1), 1h/2h after inclusion (incision T2) and 3h/4h after inclusion (back in post-operative surveillance room T3). |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hôpital de la Croix Rousse | Lyon | 69317 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 35394895 | Result | Favre-Felix J, Laurent V, Branche P, Huissoud C, Raffin M, Pradat P, Aubrun F, Dziadzko M. Auricular Acupuncture for Preoperative Anxiety in Parturient Women with Scheduled Cesarean Section: A Randomized Placebo-Controlled Blind Study. J Integr Complement Med. 2022 Jul;28(7):569-578. doi: 10.1089/jicm.2021.0346. Epub 2022 Apr 8. |
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| Apply a device having no real effect | Device | The three points of the protocol are detected and located precisely by a differential detector starting with the right ear, and in the absence of response, the points are searched on the left ear.The detected points are treated by application of adhesive tape without needle. Data collected :
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| Disinfection | Procedure | The ear is disinfected by applying Chlorhexidine®. |
|
| To evaluate anxiolytic effect of auricular acupuncture on anxiety measured by Amsterdam Preoperative Anxiety and Information Scale (APAIS). | Variation of APAIS between T0 and T1, comparison between the 3 groups. APAIS is a self-reported questionnaire comprising six questions. | measured at the inclusion (T0) and 30min/1h after inclusion (T1). |
| To evaluate the effect of auricular acupuncture on parasympathetic tone measured by Analgesia Nociception Index (ANI). | Variation of ANI between T0 and T1, comparison between the 3 groups. ANI is a 0 to 100 index derived from heart rate variability which provides a continuous measurement of the parasympathetic tone. | measured at the inclusion (T0) and 30min/1h after inclusion (T1). |
| Study of the correlation between ANI and anxiety VAS. | Variation of ANI between T0 and T1, comparison between the 3 groups, and correlation with anxiety VAS. ANI is a 0 to 100 index derived from heart rate variability which provides a continuous measurement of the parasympathetic tone. | measured at the inclusion (T0) and 30min/1h after inclusion (T1). |
| To evaluate the effect of auricular acupuncture on perioperative pain. | VAS for pain is a self-reported measure varying from, 0 (no pain) to 100 (greatest possible level of pain). A comparison of VAS score will be made between the 3 groups. | Measured at1h/2h after inclusion (incision T2) and 3h/4h after inclusion (back in post-operative surveillance room T3). |
| Report of potential adverse events of auricular acupuncture. | collection of potential side effects. | Measured at 30min/1h after inclusion (T1), 1h/2h after inclusion (incision T2) and 3h/4h after inclusion (back in post-operative surveillance room T3). |
| Correlation between APAIS and anxiety VAS. | Variation of APAIS between T0 and T1, comparison between the 3 groups, and correlation with anxiety VAS. APAIS is a self-reported questionnaire comprising six questions. | Measured at the inclusion (T0) and 30min/1h after inclusion (T1). |
| ID | Term |
|---|---|
| D004203 | Disinfection |
| ID | Term |
|---|---|
| D013242 | Sterilization |
| D017053 | Infection Control |
| D003140 | Communicable Disease Control |
| D015980 | Public Health Practice |
| D011634 | Public Health |
| D004778 | Environment and Public Health |
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