Ultrasound Guided Cricoid and Paralaryngeal Pressure
Impact of Ultrasound Guidance on the Performance of Accurate Cricoid and Paralaryngeal Pressure
調査の概要
詳細な説明
All patients consented for the study were having their airway examined via US. Cross sectional sonography of the airway was performed to determine the anatomic relationship of the oesophagus relative to the trachea:
- before induction of anaesthesia
- after GA before external airway pressure manoeuvre
- after GA with external airway pressure manoeuvre.
US guided CP was applied on subjects with central oesophagus; CP and PLP were applied on subject with eccentric oesophagus anatomy.
PLP was performed by lateral compression on the eccentric oesophagus by fingertips under US guidance. To standardised the application of CP and PLP, only 2 well trained investigators were allowed to performed the CP and PLP, US scan on airway and patient recruitment. The conduct of trial involved 2 investigators where first investigator provide US scan, and second investigator provide compression of CP or PLP using fingertips guided by the instruction of first investigator.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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-
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Kuala Lumpur、マレーシア、59100
- University Malaya Medical Centre
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
Elective list Under general anaesthesia Not intubated prior to OT
Exclusion Criteria:
Below 18 years old Pregnant Neck deformities Previous maxillofacial surgery
研究計画
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:非ランダム化
- 介入モデル:単一グループの割り当て
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ:Centrally located oesophagus post GA
Oesophagus remained central after general anaesthesia, cricoid pressure applied by fingertips under ultrasound guidance
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cricoid pressure by fingertips applied under ultrasound guidance
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実験的:Eccentric located oesophagus post GA
Oesophagus eccentric located after general anaesthesia, paralaryngeal pressure and cricoid pressure applied by fingertips under ultrasound guidance
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cricoid pressure with paralaryngeal pressure by fingertips applied under ultrasound guidance
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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 |
|---|---|---|
|
The number of patients with eccentric oesophagus under general anesthesia, successfully occluded by using cricoid and paralaryngeal pressure.
時間枠:ultrasound assessment of oesophagus done after general anaesthesia, during application of cricoid pressure, and during application of cricoid and paralaryngeal pressure
|
we are studying the effectiveness of cricoid pressure versus cricoid and paralaryngeal pressure(novel technique) in those patients with eccentric oesophagus under general anaesthesia.
We use ultrasound to determined the position of the oesophagus after patient under general anaethesia ( to group them under central oesophagus and eccentric oesophagus) and also to determine the success of oesophagus occlusion.
|
ultrasound assessment of oesophagus done after general anaesthesia, during application of cricoid pressure, and during application of cricoid and paralaryngeal pressure
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
The number of patients with central oesophagus under general anesthesia, successfully occluded by using cricoid pressure.
時間枠:ultrasound assessment of oesophagus done after general anaesthesia and during application of cricoid pressure
|
The objective is to study the effectiveness of cricoid pressure in those patients with central oesophagus under general anaesthesia.
We use ultrasound to determined the position of the oesophagus after patient under general anaethesia, and also to determine the success of oesophagus occlusion.
|
ultrasound assessment of oesophagus done after general anaesthesia and during application of cricoid pressure
|
その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
incidence of variation of oesophagus position before and after general anaesthesia
時間枠:ultrasound assessment of position of oesophagus before and after general anaesthesia
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We use ultrasound to determine the position of osephagus (central or eccentric) to determine the incidence of variation of oesophagus position before and after general anaesthesia.
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ultrasound assessment of position of oesophagus before and after general anaesthesia
|
協力者と研究者
スポンサー
捜査官
- 主任研究者:Siu Min Lim, M. Anaes、University of Malaya
出版物と役立つリンク
一般刊行物
- SELLICK BA. Cricoid pressure to control regurgitation of stomach contents during induction of anaesthesia. Lancet. 1961 Aug 19;2(7199):404-6. doi: 10.1016/s0140-6736(61)92485-0. No abstract available.
- Andruszkiewicz P, Wojtczak J, Wroblewski L, Kaczor M, Sobczyk D, Kowalik I. Ultrasound evaluation of the impact of cricoid pressure versus novel 'paralaryngeal pressure' on anteroposterior oesophageal diameter. Anaesthesia. 2016 Sep;71(9):1024-9. doi: 10.1111/anae.13518.
- Lee D, Czech AJ, Elriedy M, Nair A, El-Boghdadly K, Ahmad I. A multicentre prospective cohort study of the accuracy of conventional landmark technique for cricoid localisation using ultrasound scanning. Anaesthesia. 2018 Oct;73(10):1229-1234. doi: 10.1111/anae.14399. Epub 2018 Jul 25.
- Rice MJ, Mancuso AA, Gibbs C, Morey TE, Gravenstein N, Deitte LA. Cricoid pressure results in compression of the postcricoid hypopharynx: the esophageal position is irrelevant. Anesth Analg. 2009 Nov;109(5):1546-52. doi: 10.1213/ane.0b013e3181b05404.
- Byas-Smith M, Prinsell JR Jr. Ultrasound-guided esophageal occlusion during rapid sequence induction. Can J Anaesth. 2013 Mar;60(3):327-8. doi: 10.1007/s12630-012-9847-9. Epub 2012 Dec 20. No abstract available.
- Votruba J, Zemanova P, Lambert L, Vesela MM. The Role of Airway and Endobronchial Ultrasound in Perioperative Medicine. Biomed Res Int. 2015;2015:754626. doi: 10.1155/2015/754626. Epub 2015 Dec 14.
- Bhatia N, Bhagat H, Sen I. Cricoid pressure: Where do we stand? J Anaesthesiol Clin Pharmacol. 2014 Jan;30(1):3-6. doi: 10.4103/0970-9185.125683.
- Kei J, Utschig EE, van Tonder RJ. Using Ultrasonography to Assess the Effectiveness of Cricoid Pressure on Esophageal Compression. J Emerg Med. 2017 Aug;53(2):236-240. doi: 10.1016/j.jemermed.2017.04.025. Epub 2017 Jun 8.
- Smith KJ, Dobranowski J, Yip G, Dauphin A, Choi PT. Cricoid pressure displaces the esophagus: an observational study using magnetic resonance imaging. Anesthesiology. 2003 Jul;99(1):60-4. doi: 10.1097/00000542-200307000-00013.
- Smith KJ, Ladak S, Choi PT, Dobranowski J. The cricoid cartilage and the esophagus are not aligned in close to half of adult patients. Can J Anaesth. 2002 May;49(5):503-7. doi: 10.1007/BF03017931.
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