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Acupuncture for Relief of Gag Reflex

Acupuncture for Relief of Gag Reflex in Patients Undergoing Transesophageal Echocardiography - a Randomized Placebo-controlled Trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03821428
Acronym
AcuGag
Enrollment
60
Registered
2019-01-29
Start date
2019-01-13
Completion date
2021-05-20
Last updated
2026-06-09

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

Conditions

Gagging During Transesophageal Echocardiography

Brief summary

The aim of the study is to test whether stimulation of acupuncture points CV24 and P6 is better than placebo acupuncture in treatment of gagging in patients undergoing elective transesophageal echocardiography (TEE)

Detailed description

Patients undergoing elective transesophageal echocardiography (TEE) often report discomfort because of active gagging reflex, which sometimes preclude the performance of TEE and requires additional medication. According to existing literature, needling of acupoint CV24 effectively prevents gagging during dental procedures. We are going to use this phenomenon in patients scheduled to TEE in order to reduce discomfort during insertion of TEE probe and reduce the need for additional sedative medication. Within this investigation the patients will be randomly assigned to receive either verum acupuncture of CV24 and P6 acupoints or placebo procedure immediately before TEE examination. As outcome the incidence and intensity of gagging, total dose of additional sedative medication and hemodynamic parameters will be recorded.

Interventions

PROCEDUREAcupuncture

Needling of P6 and CV24 points

PROCEDUREPlacebo

Application of placebo acupuncture needles to the areas, where the acupoints are situated

Sponsors

University Medicine Greifswald
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
30 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Patients with an American Society of Anesthesiologists physical status of I to III scheduled for elective ambulatory transesophageal echocardiography (TEE) without sedation 2. TEE time does not exceed 30 minutes 3. Patients without previous opioid and psychotropic medication 4. Patients aged between 30 and 65 years, able to use visual analogue scale 100 mm 5. Patients who have given written informed consent

Exclusion criteria

1. Current psychiatric disease 2. Local skin infection at the sites of acupuncture 3. Aged \< 30 or \> 65 years 4. TEE time more than 30 min 5. Patients who consumed opioid medication at least 6 months before surgery 6. Patients with the history of: i) psychiatric disease; ii) insulin-dependent diabetes mellitus; iii) radio- or chemotherapy; iv) peripheral polyneuropathy. 7. Patients who are unable to understand the consent form or to use visual analogue scale 100 mm

Design outcomes

Primary

MeasureTime frameDescription
Incidence of gagging during probe insertion10 minutes after TEE probe insertionIncidence of gagging during TEE probe insertion: yes=1; no=2

Secondary

MeasureTime frameDescription
Gagging score10 minutes after TEE probe insertionGagging score on Verbal Rating Scale from 0 to 10, where 0=no discomfort from TEE probe; 10=maximal discomfort during TEE probe insertion
Rescue medication10 minutes after TEE probe insertionUse of midazolam as rescue medication, given as a summary dose of required midazolam from minimum 1 milligram to maximum 10 milligram

Countries

Germany

Contacts

STUDY_CHAIRTaras Usichenko

University Medicine of Greifswald

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 10, 2026