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Transcutaneous Electrical Acustimulation on Postoperative Bowel Function Recovery in Elderly Patients

Efficacy of Transcutaneous Electrical Acustimulation on Postoperative Bowel Function Recovery in Elderly Patients With Colorectal Cancer: A Multicenter Randomized Controlled Trial Study Protocol

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07574502
Enrollment
190
Registered
2026-05-08
Start date
2026-06-01
Completion date
2028-12-31
Last updated
2026-05-15

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

Conditions

Colorectal Cancer (CRC)

Brief summary

The goal of this clinical trial is to clarify the efficacy and safety of transcutaneous electrical acustimulation (TEA) in elderly patients with colorectal cancer, and to evaluate its clinical value in promoting postoperative intestinal function recovery and reducing the incidence of intestinal complications. The main questions it aims to answer are: Can TEA promote the recovery of intestinal function in elderly patients with colon cancer after surgery? What medical problems might occur to the participants when using TEA? The researchers will compare TEA with the control group (non-acupoint sham stimulation) to see if TEA is effective in promoting the recovery of intestinal function after surgery. Participants will: Starting from the first day after the surgery, they received TEA or sham stimulation twice a day for a total of 3 days. Record the time of the first defecation, defecation, and eating. Record their symptoms and adverse events.

Interventions

DEVICETEA

The subjects in the TEA group were placed in the supine position and received transcutaneous electrical acupoint stimulation at the bilateral PC6 and bilateral ST36 . After confirming the location of the acupoints , special skin treatment was carried out. The stimulation parameters for PC6 were set as follows: 0.1 seconds of opening stimulation, 0.4 seconds of closing stimulation, pulse width of 0.5 ms, pulse frequency of 100 Hz, and amplitude ranging from 1 to 10 mA (based on the maximum level that the subject could tolerate). The stimulation parameters for ST36 were set as follows: 2 seconds of opening stimulation, 3 seconds of closing stimulation, pulse width of 0.5 ms, pulse frequency of 25 Hz, and amplitude ranging from 2 to 10 mA (based on the maximum level that the subject could tolerate).

DEVICEsham-TEA

Sham-TEA was the same except that non-acupoints were used to replace ST36 and PC6. The sham-acupoint for PC6 was located at about 15-20 cm away from PC6 (up to the elbow and outside of the coastal margin of the forearm not on any meridian) and the sham-point for ST36 was located at 10-15 cm down from and to the lateral side of ST36 not on any meridian

Sponsors

Sir Run Run Shaw Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Age ≥ 65 years old. * Elective minimally invasive (laparoscopic or robotic) resection of colorectal cancer. * American Society of Anesthesiologists classification (ASA) 1-4. * Able to understand the research process and the use of various assessment scales, and able to communicate effectively with the researchers. * The patient voluntarily participates in this study and signs the informed consent form.

Exclusion criteria

* Previous history of abdominal gastrointestinal surgery. * Planned for palliative or emergency surgery. * Planned for open abdominal surgery or creation of a new stoma. * Transfer to ICU. * Diagnosed with severe heart, liver, kidney or mental system diseases. * Patients with implanted cardiac pacemakers. * Patients currently using or having used in the past month glucagon-like peptide-1 (GLP-1) receptor agonists, dual glucose-dependent insulinotropic polypeptide (GIP) receptor agonists, and sodium-glucose cotransporter-2 (SGLT-2) inhibitors. * Planned to use epidural anesthesia or epidural analgesia. * Presence of local skin lesions, infection at the stimulation site, or obvious skin allergy or severe skin sensitivity to electrodes/adhesive materials. * Participated in other clinical studies within the past 3 months or received acupuncture treatment within the past month. * Other conditions that the investigator considers make the patient unsuitable for participation in this study.

Design outcomes

Primary

MeasureTime frameDescription
Time to First FlatusAssessed up to 10 days after surgeryDefined as the period from the end of the surgery to the time of first flatus (hours).

Secondary

MeasureTime frameDescription
Prolonged post operative ileus (PPOI)Assessed up to 72 hours after surgerydefined as no flatus for more than 72 hours
time to first defecationAssessed up to 10 days after surgeryDefined as the period from the end of the surgery to the time of first defecation (hours).
time to first water intakeAssessed up to 10 days after surgeryThe time from the end of the surgery to the first water intake (hours)
Time to tolerance of liquid dietAssessed up to 10 days after surgery"Tolerance" is defined as no significant nausea or vomiting (PONV ≤ 4 points) within 4 hours after the liquid diet. Record the time (in hours) from the end of the surgery to the first tolerance to the liquid diet.
Time to tolerance of semi-liquid dietAssessed up to 10 days after surgery"Tolerance" is defined as no significant nausea or vomiting (PONV ≤ 4 points) within 4 hours after semi-liquid food. Record the time ( hours) from the end of the surgery to the first tolerance of semi-liquid food.
Time to tolerance of solid foodAssessed up to 10 days after surgery"Tolerance" is defined as no significant nausea or vomiting (PONV ≤ 4 points) within 4 hours after solid food. Record the time (hours) from the end of the surgery to the first tolerance of solid food.
Time to first ambulationAssessed up to 10 days after surgeryThe time from the end of the surgery to the first ambulation (hours).
Postoperative nauseaAt 24, 48, and 72 hours after surgeryThe number and frequency of postoperative nausea episodes
postoperative vomitingAt 24, 48, and 72 hours after surgeryThe number and frequency of postoperative vomiting
postoperative abdominal distensionAt 24, 48, and 72 hours after surgeryThe number and frequency of postoperative abdominal distension
Use of anti-emetic drugs after surgeryAt 24, 48, and 72 hours after surgeryNumber of participants using antiemetic drugs
Severity of postoperative painAt 24, 48, and 72 hours after surgeryThe assessment was conducted using a numerical rating scale (NRS). The scoring range was 0-10 (0 indicated no pain, while 10 indicated unbearable severe pain. Scores of 1-3 indicated mild pain that could be tolerated; 4-6 indicated pain that affected sleep but was still tolerable; 7-10 indicated severe pain that affected appetite and sleep).
Use of opioids drugs after surgeryAt 24, 48, and 72 hours after surgeryThe total dosage of all opioid analgesics used within 24 hours, 48 hours, and 72 hours after surgery, converted into morphine equivalents.
Postoperative quality of recoverybaseline and postoperative day 1 to day 7 (or until discharge, whichever comes first)Assessed using the Quality of Recovery - 15 score (QoR-15) questionnaire preoperatively and daily. The total score ranges from 0 to 150 points. The higher the score, the better the post-anesthesia recovery quality.
TEA SecurityAssessed up to 3 days after surgeryassessing the adverse events related to the equipment (including numbness in the hands, pain, and skin allergies)
Postoperative complicationsFrom the time the patient signs the informed consent form until the end of the study follow-up (30 days after surgery)The severity of complications was evaluated using the Clavien-Dindo classification system (grades I to V), with Clavien-Dindo grade ≥ III complications serving as the major surgical complications.
Total length of hospital stayAssessed up to 30 days after surgeryprimary admission plus any readmission up to 30 days
Unplanned readmissionAssessed up to 30 days after surgeryRecord the number of unplanned re-admissions within 30 days of hospital discharge

Countries

China

Contacts

CONTACTXin Yu
xinxin_yu@zju.edu.cn86006663

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 16, 2026