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Low-Residue Diet Versus Rectal Enema Before Laparoscopic Surgery for Endometrial Cancer

2026年7月16日 更新者：Mahmut Yassa

Low-Residue Diet Versus Rectal Enema Before Laparoscopic Endometrial Cancer Surgery: A Prospective Randomized Controlled Trial

The goal of this clinical trial is to compare a standardized 3-day bowel preparation protocol with a rectal enema before laparoscopic surgery for endometrial cancer. The study will evaluate whether the dietary bowel preparation protocol can be used instead of a rectal enema while maintaining an adequate surgical view during surgery.

The main questions it aims to answer are:

  • Can the dietary bowel preparation protocol provide surgical exposure comparable to a rectal enema?
  • Can the dietary bowel preparation protocol reduce the minimum Trendelenburg position and pneumoperitoneum pressure required to obtain an adequate surgical view?
  • Does either bowel preparation method cause more discomfort or side effects before surgery?

Researchers will compare a standardized 3-day bowel preparation protocol with a rectal enema before surgery.

Participants will:

  • Be randomly assigned to receive either a standardized 3-day bowel preparation protocol or a rectal enema before surgery.
  • Undergo standard laparoscopic surgery for endometrial cancer.
  • Have surgical exposure, the minimum Trendelenburg position, the minimum pneumoperitoneum pressure, operative outcomes, postoperative recovery, and bowel preparation-related symptoms and discomfort assessed as part of routine clinical care.

調査の概要

状態

募集

条件

介入・治療

詳細な説明

Adequate bowel preparation is important for achieving optimal surgical exposure during laparoscopic surgery for endometrial cancer. Inadequate bowel preparation may impair visualization of the operative field, requiring steeper Trendelenburg positioning and higher pneumoperitoneum pressures, which may increase the physiological burden of surgery and affect operative performance.

Mechanical bowel preparation with rectal enema is commonly used before gynecologic surgery, although its routine use remains controversial because evidence supporting its clinical benefit is limited. A standardized 3-day bowel preparation protocol may improve patient tolerance while maintaining adequate surgical conditions. However, prospective randomized studies comparing these two approaches specifically in laparoscopic endometrial cancer surgery remain limited.

This prospective randomized controlled trial will compare a standardized 3-day bowel preparation protocol with a preoperative rectal enema before laparoscopic surgery for endometrial cancer. The primary objective is to determine whether the dietary bowel preparation protocol can provide surgical conditions comparable to those achieved with rectal enema.

In addition to subjective assessment of surgical exposure, the study will evaluate objective intraoperative parameters, including the minimum Trendelenburg position and the minimum pneumoperitoneum pressure required to maintain an adequate surgical view. Operative outcomes, postoperative recovery, patient tolerance of the bowel preparation methods, and bowel preparation-related symptoms will also be evaluated.

The findings of this study may help optimize preoperative bowel preparation strategies, reduce unnecessary patient burden, and support evidence-based perioperative care for patients undergoing laparoscopic surgery for endometrial cancer.

研究の種類

介入

入学 (推定)

100

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

  • トルコ（Türkiye）
      • Istanbul、トルコ（Türkiye）
        • 募集
        • Başakşehir Çam and Sakura City Hospital
        • コンタクト：
        • 副調査官：
          • Bora Taşpınar, MD

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  • Female participants aged 18 to 90 years.
  • Scheduled to undergo elective laparoscopic surgery for endometrial cancer.
  • Willing and able to provide written informed consent.

Exclusion Criteria:

  • Planned open (abdominal) surgery.
  • Known allergy or contraindication to sodium phosphate rectal enema.
  • Age over 90 years.
  • Refusal or inability to provide written informed consent.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか？

デザインの詳細

  • 主な目的：処理
  • 割り当て：ランダム化
  • 介入モデル：並列代入
  • マスキング：独身

武器と介入

参加者グループ / アーム
介入・治療
実験的：Low-Residue Diet
Participants will follow a standardized 3-day bowel preparation protocol before surgery. The protocol includes a low-residue diet on day 3 before surgery, a soft or pureed diet on day 2, and a clear liquid diet on the day before surgery
行動：Low-Residue Diet
Participants will follow a standardized 3-day bowel preparation protocol consisting of a low-residue diet on day 3 before surgery, a soft or pureed diet on day 2, and a clear liquid diet on the day before surgery, with adequate hydration throughout the preparation period.
アクティブコンパレータ：Rectal Enema
Participants will receive a single sodium phosphate rectal enema approximately 12 hours before surgery according to the institutional bowel preparation protocol
薬：Sodium Phosphate Rectal Enema
Participants will receive a single sodium phosphate rectal enema approximately 12 hours before surgery according to the manufacturer's instructions and the institutional bowel preparation protocol.

この研究は何を測定していますか？

主要な結果の測定

結果測定
メジャーの説明
時間枠
Intraoperative Visual Index Score
時間枠：Intraoperatively, after pneumoperitoneum establishment and placement of the camera trocar and one lateral ancillary trocar
Surgical exposure will be assessed intraoperatively using the Visual Index score after establishment of pneumoperitoneum and placement of the camera trocar and one lateral ancillary trocar. The score ranges from 0 to 2, where 0 indicates inadequate visualization despite bowel retraction with one grasper, 1 indicates adequate visualization requiring bowel retraction with one grasper, and 2 indicates adequate visualization without bowel retraction. Higher scores indicate better surgical exposure.
Intraoperatively, after pneumoperitoneum establishment and placement of the camera trocar and one lateral ancillary trocar
Minimum Trendelenburg Position Required for Adequate Surgical Exposure
時間枠：Intraoperatively
The minimum Trendelenburg angle (degrees) required to achieve adequate visualization of the pelvis will be recorded intraoperatively using the predefined assessment protocol.
Intraoperatively
Minimum Pneumoperitoneum Pressure Required for Adequate Surgical Exposure
時間枠：Intraoperatively
The minimum pneumoperitoneum pressure (mmHg) required to achieve adequate visualization of the pelvis will be recorded intraoperatively using the predefined assessment protocol.
Intraoperatively

二次結果の測定

結果測定
メジャーの説明
時間枠
Operative Time
時間枠：During surgery
Total operative time measured from skin incision to skin closure, recorded in minutes.
During surgery
Length of Hospital Stay
時間枠：At hospital discharge, assessed up to 30 days after surgery
Length of postoperative hospital stay, measured in days from surgery until hospital discharge.
At hospital discharge, assessed up to 30 days after surgery
Time to First Flatus
時間枠：From completion of surgery until the first documented passage of flatus, assessed up to 7 postoperative days
Time from completion of surgery to the first documented passage of flatus, measured in hours. The occurrence and timing of first flatus will be assessed during daily postoperative visits until the event occurs or until hospital discharge.
From completion of surgery until the first documented passage of flatus, assessed up to 7 postoperative days
Patient Tolerance of Bowel Preparation
時間枠：From preoperative bowel preparation until postoperative day 1
Patient tolerance will be assessed using completion of the assigned bowel preparation protocol, willingness to repeat the same preparation method in a future surgery, postoperative pain score, and bowel preparation-related symptoms. Symptoms will include nausea, overall discomfort, headache, insomnia, thirst, abdominal cramps, weakness, and fatigue, each assessed using a 0-10 numeric rating scale, where 0 indicates no symptom and 10 indicates the worst possible symptom.
From preoperative bowel preparation until postoperative day 1

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

Mahmut Yassa

捜査官

  • 主任研究者：MAHMUT YASSA, MD、Başakşehir Çam & Sakura City Hospital

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年7月15日

一次修了 (推定)

2028年1月15日

研究の完了 (推定)

2028年3月1日

試験登録日

最初に提出

2026年7月6日

QC基準を満たした最初の提出物

2026年7月13日

最初の投稿 (実際)

2026年7月14日

学習記録の更新

投稿された最後の更新 (実際)

2026年7月17日

QC基準を満たした最後の更新が送信されました

2026年7月16日

最終確認日

2026年7月1日

詳しくは

本研究に関する用語

キーワード

追加の関連 MeSH 用語

その他の研究ID番号

  • ENDO-DIET-RCT-2026

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

はい

IPD プランの説明

De-identified individual participant data underlying the published results, together with a data dictionary, will be made available upon reasonable request to the corresponding investigator. Data will be shared only after publication of the primary study results and subject to institutional approval, a scientifically sound research proposal, and execution of a data use agreement. Additional data may be considered on a case-by-case basis at the discretion of the principal investigator.

IPD 共有時間枠

Beginning 6 months after publication of the primary study results and ending 3 years after publication.

IPD 共有アクセス基準

Access will be considered for qualified researchers conducting scientifically sound research. Requests must include a research proposal and, where appropriate, a statistical analysis plan. All requests will be reviewed by the principal investigator and approved according to institutional policies. Approved researchers will be required to sign a data use agreement before receiving de-identified data.

IPD 共有サポート情報タイプ

  • STUDY_PROTOCOL

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米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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