Force and Pressure Distribution Using Macintosh and GlideScope Laryngoscopes in Normal Airway: an in Vivo Study
연구 개요
상세 설명
Forces applied on soft upper tissues by different laryngoscope blades during direct laryngoscopy and intubation are considered to be major stimuli to cause serious damages to the patients, such as local injures to incisors, larynx and spinal column, or hemodynamic changes in heart rate and/or blood pressure due to autonomic nervous system stimulation.
In order to reduce risk of such injures, indirect videolaryngoscopy provides the advantage of an easier laryngeal visualization with less need for the mouth-pharyngeal-laryngeal axes alignment, thereby reducing the detrimental effects above mentioned.
The aim of this study is to measure the minimal force exertion to achieve not only glottis view but also a successful intubation, comparing GlideScope and Macintosh laryngoscope, in patients with normal airway conditions. Furthermore, The investigators measured the following parameters: pressure distribution upon the blade; time required to visualize the glottis; time required to complete oro-tracheal intubation.
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Rome, 이탈리아, 00128
- University Hospital Campus BioMedico
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Patients classified as American Society of Anesthesiologists physical status (ASA-PS) class 1 or 2
- Patients whose intubation was associated with a Cormack-Lehane grade 1
Exclusion Criteria:
- younger than 18 yrs
- older than 65 yrs
- body-mass index (BMI) between 18 and 30
- predicted difficult intubation according to SIAARTI (Italian Society Anaesthesia, Analgesia, Resuscitation and Intensive Care)
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 방지
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 하나의
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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활성 비교기: Direct laryngoscope
Includes cases in which the forces applied by Macintosh direct laryngoscope onto soft tissue of the pharynx during glottis visualization and intubation were measured.
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Force and pressure distribution applied by direct or indirect laryngoscope during glottis visualization and intubation were measured using film pressure transducers.
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활성 비교기: Indirect laryngoscope
Includes cases in which the forces applied by GlideScope indirect laryngoscope onto soft tissue of the pharynx during glottis visualization and intubation were measured.
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Force and pressure distribution applied by direct or indirect laryngoscope during glottis visualization and intubation were measured using film pressure transducers.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Force Applied and Pressure Distribution Upon the Blade of Laryngoscopes During Tracheal Intubation.
기간: Force measurement is referred to an average of 45 seconds in patients scheduled to undergo elective surgery under general anaesthesia
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The pressure distribution exerted upon the tissues by the blade was measured (in Newton)through pressure film transducers put on the blade of both direct and indirect laryngoscopes, in order to compare the two devices.
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Force measurement is referred to an average of 45 seconds in patients scheduled to undergo elective surgery under general anaesthesia
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Time Required to Visualize the Glottis and Complete Oro-tracheal Intubation
기간: On average 20 seconds
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Since the time needed for laryngoscopy and intubation could represent one of the major contributors to the stress response during these procedures, times to achieve the glottis visualization and to perform the entire intubation were recorded.
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On average 20 seconds
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공동 작업자 및 조사자
수사관
- 수석 연구원: Massimiliano Carassiti, Professor, Campus Biomedico
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
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