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Bladder Stimulation Technique for Urine Collection in the Pediatric Emergency Department

2026年6月17日 更新者:Aytaç Göktuğ、Istanbul Medeniyet University

Can the Bladder Stimulation Technique Solve the Urine Collection Chaos in the Pediatric Emergency Department?

The purpose of this prospective, quasi-experimental study is to evaluate the efficacy of the Bladder Stimulation Technique (BST) compared to the traditional urine collection bag method in non-toilet-trained infants presenting to the Pediatric Emergency Department. The primary objective is to determine whether BST can significantly reduce urine contamination rates and the time required for successful sample collection. By comparing these two non-invasive methods, the study aims to provide a faster, cleaner, and more reliable diagnostic approach to solve the operational challenges of urine collection in acute pediatric care

調査の概要

詳細な説明

Diagnosing urinary tract infections (UTIs) in non-toilet-trained infants is a daily and critical challenge in pediatric emergency departments. In this highly vulnerable group, a UTI can rapidly progress to severe complications, making an accurate diagnosis via a sterile or very clean urine sample absolutely essential. Currently, the most common non-invasive method for collecting urine from these infants is the adhesive urine bag. However, this method has significant drawbacks. Bag samples have notoriously high contamination rates-often exceeding 50%-because bacteria from the baby's skin or stool easily mix with the urine.

When a urine sample is contaminated, it frequently leads to false-positive results. This forces physicians to either prescribe unnecessary antibiotics to a very young infant or subject the baby to invasive, painful procedures like urethral catheterization to secure a sterile sample. Furthermore, waiting for an infant to naturally void into a bag is highly unpredictable, often taking hours. This waiting period increases the length of hospital stays, frustrates parents, and creates operational bottlenecks in busy emergency departments.

The Proposed Intervention: Bladder Stimulation Technique (BST) To address these clinical and operational challenges, clinicians are exploring alternative non-invasive methods. The Bladder Stimulation Technique (BST) is a safe, completely non-invasive maneuver that involves gently tapping and massaging the infant's lower abdomen (suprapubic area) and lower back (lumbar region) in a specific sequence. This gentle stimulation triggers the infant's natural reflex to urinate, allowing healthcare providers to catch a midstream urine sample directly into a sterile container.

Study Design and Methodology This is a prospective, quasi-experimental comparative study conducted in a high-volume Pediatric Emergency Department. The study is designed to directly compare the traditional adhesive urine bag method with the Bladder Stimulation Technique.

The study will specifically include infants younger than 6 months of age who present to the emergency department and require a urine sample for clinical evaluation. Eligible infants will be evaluated using one of the two collection methods, and the study will rigorously track and compare the outcomes of both approaches in real-time.

Primary and Secondary Objectives

The study focuses on three main questions regarding this specific age group:

Contamination Rates: Does BST provide a cleaner urine sample compared to the bag method in infants under 6 months, thereby significantly reducing the rate of false-positive cultures?

Time Efficiency: Does BST reduce the time required to successfully collect a urine sample compared to waiting for a bag collection?

Success Rate: What is the overall success rate of obtaining a viable urine sample using BST versus the bag method within a standard emergency room timeframe? The findings of this study have the potential to immediately change clinical guidelines and daily practices in acute pediatric care. If the Bladder Stimulation Technique proves to be faster and less prone to contamination than the traditional bag method, it will serve as a crucial "diagnostic firewall." For parents, this means less time waiting in the emergency room, protection from unnecessary antibiotic treatments, and avoiding the pain and trauma of invasive catheterization for their babies. For healthcare systems, it offers a cost-effective, evidence-based solution to resolve diagnostic dilemmas and operational bottlenecks in emergency departments.

研究の種類

介入

入学 (推定)

124

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。

研究場所

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

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  • Infants strictly under 6 months of age.
  • Patients presenting to the pediatric emergency department who require a urine sample collection for any clinical indication (e.g., fever without a source, suspected urinary tract infection).
  • Infants who are able to be fed orally or enterally (as the protocol requires the procedure to be performed 20 minutes after feeding to ensure bladder volume).
  • Presence of informed written consent from a parent or legal guardian.

Exclusion Criteria:

  • Infants aged 6 months or older.
  • Patients requiring immediate life-saving resuscitation or those who are hemodynamically unstable.
  • Patients with known congenital anomalies of the genitourinary tract.
  • Patients with known neurological disorders that may affect normal bladder function or voiding reflexes (e.g., neural tube defects, spina bifida).
  • Presence of skin lesions, active infections, trauma, or surgical incisions in the paravertebral (lower back) or suprapubic (lower abdomen) areas that would contraindicate physical massage and tapping.
  • Patients with any clinical contraindication to feeding.
  • Refusal of parental 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:診断
  • 割り当て:非ランダム化
  • 介入モデル:並列代入
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的:Arm 1: Bladder Stimulation Technique
Infants in this arm will undergo the Bladder Stimulation Technique. This completely non-invasive method involves a specific sequence of paravertebral (lower back) massage and suprapubic (lower abdomen) tapping to trigger the infant's natural voiding reflex, allowing for a midstream urine sample to be collected directly into a sterile container.
In the intervention group, the Bladder Stimulation Technique (BST) was performed. The infant was held safely suspended in the air by their armpits by a researcher to relax the abdominal muscles. The physician then initiated a stimulation cycle consisting of 30 seconds of gentle paravertebral (lower back) massage, followed immediately by 30 seconds of light suprapubic (lower abdomen) tapping. This 1-minute cycle was repeated continuously for a maximum of 5 minutes. The moment the natural voiding reflex was triggered and the infant began to urinate, a midstream urine sample was directly caught into a sterile specimen container
アクティブコンパレータ:Arm 2: Traditional Urine Bag Method
Infants in this arm will undergo the current standard of care. A standard, sterile adhesive urine collection bag will be applied to the infant's perineal area. The patient will be monitored until natural voiding occurs into the bag
The current standard care method for urine collection in non-toilet-trained infants. The infant's perineal area is cleaned, and a standard, sterile pediatric adhesive urine collection bag is attached. The infant is then closely monitored in the emergency department until spontaneous natural voiding occurs into the bag.

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
Success Rate of the Bladder Stimulation Technique and Influencing Factors
時間枠:From the start of the stimulation maneuver until at least 1 cc of urine is obtained (maximum of 5 minutes)
The primary objective is to evaluate the percentage of successful urine collections, strictly defined as obtaining at least 1 cc (mL) of clean-catch midstream urine, achieved specifically by using bladder stimulation maneuvers (paravertebral massage and suprapubic tapping). Additionally, this outcome evaluates the clinical and demographic factors (e.g., patient age, gender, weight) that influence the success of this specific maneuver.
From the start of the stimulation maneuver until at least 1 cc of urine is obtained (maximum of 5 minutes)

二次結果の測定

結果測定
メジャーの説明
時間枠
Effect on Emergency Department Waiting Time
時間枠:Up to 5 minutes for the bladder stimulation group, and until at least 1 cc of urine is obtained for the traditional bag group
To evaluate and compare the effect of both urine collection methods (the bladder stimulation technique versus the traditional adhesive bag) on the total waiting time in the emergency department, measured from the initiation of the procedure until at least 1 cc of urine is successfully obtained.
Up to 5 minutes for the bladder stimulation group, and until at least 1 cc of urine is obtained for the traditional bag group

その他の成果指標

結果測定
メジャーの説明
時間枠
Effect on Specimen Contamination Rates
時間枠:Up to 72 hours
To evaluate and compare the effect of both urine collection methods on the rates of urine culture contamination, in order to determine which method yields more reliable clinical samples.
Up to 72 hours

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。

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2月1日

一次修了 (実際)

2026年4月30日

研究の完了 (推定)

2026年6月15日

試験登録日

最初に提出

2026年6月12日

QC基準を満たした最初の提出物

2026年6月12日

最初の投稿 (実際)

2026年6月17日

学習記録の更新

投稿された最後の更新 (実際)

2026年6月22日

QC基準を満たした最後の更新が送信されました

2026年6月17日

最終確認日

2026年6月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • IstabulMU-PED-AG-01

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?

いいえ

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いいえ

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