ClinicalTrials.gg
CompletedNCT06403215Updated May 7, 2024

Effect of Chewing Gum and Drinking Fennel Tea

An interventional study of Chewing gum group and Fennel tea group in Bowel Ileus and Cesarean Section Complications, sponsored by Marmara University. Completed at 1 site in Turkey. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-05-07.

Sponsored by Marmara University · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 6 years 7 months after the study started (first participant enrolled Sep 2017, registered May 2024).
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

Aim: Postoperative ileus after cesarean section is a problem that significantly prolongs hospital stay and increases perioperative costs. The ability of postoperative fennel tea consumption to produce bowel movement is unclear and needs to be studied. This study aimed to determine the effect of chewing gum and drinking fennel tea on intestinal motility after cesarean section.

Methods: The study was conducted in postnatal care wards between January 2018 and April 2018. Simple randomization was used to assign women to the study arms. Data were collected during Pregnancy Constipation Diagnostic Scale, Data Collection and Follow-up Form were collected.

Read the detailed description

Study Sample This parallel, monocenter, randomized controlled experimental study was conducted between January 2018 and April 2018 with the CONSORT guidelines in four maternity units in Türkiye. Inclusion criteria for the study were as follows: Healthy, women who had a cesarean section under general anesthesia, received primary school education at least, did not have a chronic systemic disease, had no problems during pregnancy, had no history of allergy, had a body mass index (BMI) of 18.50-24.99 kg/m2, with no previous abdominal operation, and no complications during the operation.

Participants and Setting After being included in the study, the women were registered as a participant and the study was carried out using opaque sealed envelopes numbered sequentially. The study was carried out with four different groups determined by 22 factorial trial levels. The sample size was determined as a total of 120 participants at 80% power and 95% confidence interval in consideration of the meta-analysis conducted on the data of the subjects. Two different interventions- chewing gum and drinking fennel tea - were conducted in this study.

Intervention Chewing gum group Women in this group chewed sugar-free and non-xylite gum for 15 minutes every two hours (2nd, 4th, and 6th) following the cesarean operation. As a result of their meta-analysis study, a study reported that chewing gum for 15 minutes every two hours until oral intake started bowel sounds in a shorter time. Therefore, in the current study, women chewed gum for 15 minutes every two hours, following two hours after the cesarean operation. The bowel sounds of the women were listened to and their flatulation times were recorded before and after gum chewing for 15 minutes every two hours. When women were allowed oral intake, gum-chewing activity was terminated completely. Data for the first time of flatulation and the bowel sounds were collected by verbally asking women, and these data were recorded in the follow-up form.

Fennel tea group Women in this group started oral intake 6 hours after cesarean delivery and were allowed to drink 2 grams of fennel tea in the 6th, 8th, and 10th hours (a total of 6 grams of fennel tea). Fennel seeds (2 grams) were put into 150 ml water, boiled at a temperature of 100 °C, and left for 20 minutes. Women were then instructed to drink the tea. Bowel sounds were recorded every 2 hours, before and after drinking the fennel tea. The time of the first flatulation and the first bowel sounds were determined by asking the women themselves and this information was then recorded using the study form.

Data collection The amount of fluid taken by the patients was measured with a glass. The amount of urine removed was calculated by checking the patient's bladder. The urinary catheter was removed at the 6th hour.

Ethical Statement The study was conducted in accordance with the Declaration of Helsinki and were approved by Ethics Committees (Protocol No: 09.2017.586). All patients signed informed consents.

Data Analysis Chi-square and Fisher tests were used to compare categorical data. Spearman's rank correlation coefficient was used to analyze and compare the statistical data. A value of p\<0.05 was accepted for the statistical significance of the comparisons.

02

Conditions studied

  • Bowel Ileus
  • Cesarean Section Complications

Browse trials for

Keywords

  • Cesarean
  • chewing gum
  • fennel tea
  • Bowel sounds
03

In context

Ileus

167 studies on the registry are indexed under Ileus; 23 are open to participants now.

This study's enrollment of 120 is above the median of 90 across 138 interventional studies indexed under Ileus.

Browse Ileus studies →

Lead sponsor

Marmara University is the lead sponsor of 599 studies on the registry; 138 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Without chronic disease
  • women who had a cesarean section under general anesthesia
  • received primary school education at least
  • women had no problems during pregnancy
  • who had no history of allergy
  • who had a (BMI) of 18.50-24.99 kg/m2
  • no previous abdominal operation
  • no complications during the operation.

Exclusion criteria

Exclusion Criteria:

  • age\<18 years
  • multiparous women
  • who had a cesarean section under spinal anesthesia
  • spontaneous onset of labor
  • who had a chronic systemic disease
  • who had problems during pregnancy
  • who had any history of allergy
  • who had a (BMI) of \<24.99 kg/m2
  • who had a previous abdominal operation, and complications during the operation.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
120 participants (actual)

Study arms

  • Experimental
    Chewing gum group

    Women in this group chewed sugar-free and non-xylite gum for 15 minutes every two hours (2nd, 4th, and 6th) following the cesarean operation. As a result of their meta-analysis study, a study reported that chewing gum for 15 minutes every two hours until oral intake started bowel sounds in a shorter time. Therefore, in the current study, women chewed gum for 15 minutes every two hours, following two hours after the cesarean operation. The bowel sounds of the women were listened to and their flatulation times were recorded before and after gum chewing for 15 minutes every two hours. When women were allowed oral intake, gum-chewing activity was terminated completely. Data for the first time of flatulation and the bowel sounds were collected by verbally asking women, and these data were recorded in the follow-up form.

    Other: Chewing gum group

  • Experimental
    Fennel tea group

    Women in this group started oral intake 6 hours after cesarean delivery and were allowed to drink 2 grams of fennel tea in the 6th, 8th, and 10th hours (a total of 6 grams of fennel tea). Fennel seeds (2 grams) were put into 150 ml water, boiled at a temperature of 100 °C, and left for 20 minutes. Women were then instructed to drink the tea. Bowel sounds were recorded every 2 hours, before and after drinking the fennel tea. The time of the first flatulation and the first bowel sounds were determined by asking the women themselves and this information was then recorded using the study form.

    Other: Fennel tea group

  • Experimental
    Chewing gum+Fennel tea group

    Women in this group chewed sugar-free and non-xylite gum for 15 minutes every two hours (2nd, 4th, and 6th) following the cesarean operation. As a result of their meta-analysis study, a study reported that chewing gum for 15 minutes every two hours until oral intake started bowel sounds in a shorter time.Women were then instructed to drink the tea. Bowel sounds were recorded every 2 hours, before and after drinking the fennel tea. The time of the first flatulation and the first bowel sounds were determined by asking the women themselves and this information was then recorded using the study form.

    Other: Chewing gum+Fennel tea group

  • Experimental
    Control group

    Researcher sounded in bowel movement as hospital protocols.

    Other: Control group

Interventions

  • OtherChewing gum group

    Women in this group chewed sugar-free and non-xylite gum for 15 minutes every two hours (2nd, 4th, and 6th) following the cesarean operation.

  • OtherFennel tea group

    Women in this group started oral intake 6 hours after cesarean delivery and were allowed to drink 2 grams of fennel tea in the 6th, 8th, and 10th hours (a total of 6 grams of fennel tea).

  • OtherChewing gum+Fennel tea group

    Women in this group both chewed sugar-free and non-xylite gum for 15 minutes every two hours (2nd, 4th, and 6th) following the cesarean operation and started oral intake 6 hours after cesarean delivery and were allowed to drink 2 grams of fennel tea in the 6th, 8th, and 10th hours (a total of 6 grams of fennel tea).

  • OtherControl group

    No intervention

06

What researchers measure

Primary outcomes

  1. bowel sounds

    Bowel sounds were recorded every 2 hours.

    Time frame: 12 hours

  2. flatulation

    .The time of the first flatulation were determined by asking the women themselves and this information was then recorded using the study form.

    Time frame: 24 hours

  3. defecation

    .The time of the first defecation were determined by asking the women themselves and this information was then recorded using the study form.

    Time frame: 48 hours

07

Study locations

1 site
  • Marmara University
    Istanbul, 34854, Turkey
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 7, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06403215
Lead sponsor
Marmara University
Responsible party
Nurdan Demirci (Prof, Marmara University) — Principal investigator
First posted
May 7, 2024
Start date
Sep 11, 2017
Primary completion
Apr 30, 2018
Completion
Jun 30, 2019
Last update
May 7, 2024

Study contacts

Rüveyda Ölmez Yalazı, PhDc
principal investigator · Marmara University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in May 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion