NCT06459167

Brief Summary

Hypoxemia was defined as an SpO2 of \< 90% for any duration. Failure to treat promptly can lead to hypoxemia, which may increase the risks of arrhythmia, nausea and vomiting, and cognitive dysfunction. Studies have shown that body position has a direct impact on respiratory function. In special environments, including outside the operating room where emergency airway management for critically ill and injured patients is needed, or in areas with limited medical resources like remote areas, adopting simple interventions by changing position to maintain patients' respiratory function can be more economical, convenient and safe.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,752

participants targeted

Target at P75+ for not_applicable

Timeline
2mo left

Started Jun 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress93%
Jun 2024Jun 2026

First Submitted

Initial submission to the registry

May 24, 2024

Completed
21 days until next milestone

First Posted

Study publicly available on registry

June 14, 2024

Completed
6 days until next milestone

Study Start

First participant enrolled

June 20, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2026

Last Updated

June 14, 2024

Status Verified

June 1, 2024

Enrollment Period

1.9 years

First QC Date

May 24, 2024

Last Update Submit

June 10, 2024

Conditions

Keywords

positionhypoxemiasedationemergencyupper airway

Outcome Measures

Primary Outcomes (2)

  • The lowest SpO2

    The lowest SpO2 during sedation and procedures

    During procedure

  • Use of airway interventions

    Use of airway interventions including increased inhaled O2, ventilated mask and endotracheal intubation

    During procedure

Secondary Outcomes (6)

  • The onset of when SpO2 dropped below 80%

    During procedure

  • The onset of when SpO2 dropped below 70%

    During procedure

  • The onset of respiratory adverse events

    During procedure

  • The onset of circulatory adverse events

    During procedure

  • The onset of gastrointestinal adverse events

    During procedure

  • +1 more secondary outcomes

Study Arms (2)

Group S

EXPERIMENTAL

Patients needing sedation for procedure or surgery are assisted into supine position before they were sedated and kept during the procedure.

Other: The position adopted when patients undergoing procedure or surgery

Group L

EXPERIMENTAL

Patients needing sedation for procedure or surgery are assisted into lateral position before they were sedated and kept the procedure.

Other: The position adopted when patients undergoing procedure or surgery

Interventions

For patients requiring sedation for procedures or surgery, they are randomly assigned either to supine position or lateral position before they are sedated, and kept during procedure or surgery.

Group LGroup S

Eligibility Criteria

Age18 Years+
Sexall(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with 18 years or older
  • Without obvious cardiovascular or pulmonary dysfunction
  • Scheduled to undergo procedure or surgery with sedation
  • Signed the informed consent form

You may not qualify if:

  • Preexisting bradycardia (heart rate \<50 beats/min), hypotension (systolic blood pressure \< 80mmHg), or hypoxemia (SpO2 \< 90%);
  • Requiring supplemental chronic or intermittent oxygen therapy because of preexisting diseases
  • Preexisting diseases which unable to tolerate reduced SpO2 or Partial pressure of carbon dioxide in artery (PaCO2) diseases, such as severe cardiovascular and cerebrovascular diseases, intracranial hypertension or severe lung diseases;
  • Coagulation disorders or a tendency of nose bleeding;
  • Patients whose body position cannot be altered;
  • Participated in other intervention clinical studies in the past 3 months;
  • Patients and guardians refused to participate in this trial.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The First Affiliated Hospital, School of Medicine, Zhejiang University

Hangzhou, Zhejiang, 310000, China

Location

Related Publications (7)

  • Klare P, Huth R, Haller B, Huth M, Weber A, Schlag C, Reindl W, Schmid RM, von Delius S. Patient position and hypoxemia during propofol sedation for colonoscopy: a randomized trial. Endoscopy. 2015 Dec;47(12):1159-66. doi: 10.1055/s-0034-1392329. Epub 2015 Jun 30.

    PMID: 26126161BACKGROUND
  • Ababneh O, Bsisu I, El-Share' AI, Alrabayah M, Qudaisat I, Alghanem S, Khreesha L, Ali AM, Rashdan M. Awake Nasal Fiberoptic Intubation in Lateral Position for Severely Obese Patients with Anticipated Difficult Airway: A Randomized Controlled Trial. Healthcare (Basel). 2023 Oct 24;11(21):2818. doi: 10.3390/healthcare11212818.

  • Edmark L, Kostova-Aherdan K, Enlund M, Hedenstierna G. Optimal oxygen concentration during induction of general anesthesia. Anesthesiology. 2003 Jan;98(1):28-33. doi: 10.1097/00000542-200301000-00008.

  • Semler MW, Janz DR, Russell DW, Casey JD, Lentz RJ, Zouk AN, deBoisblanc BP, Santanilla JI, Khan YA, Joffe AM, Stigler WS, Rice TW; Check-UP Investigators( *); Pragmatic Critical Care Research Group. A Multicenter, Randomized Trial of Ramped Position vs Sniffing Position During Endotracheal Intubation of Critically Ill Adults. Chest. 2017 Oct;152(4):712-722. doi: 10.1016/j.chest.2017.03.061. Epub 2017 May 6.

  • Wahdan AS, El-Refai NAR, Omar SH, Abdel Moneem SA, Mohamed MM, Hussien MM. Endotracheal intubation in patients undergoing open abdominal surgery in the lateral position: a comparison between the intubating video stylet and fiberoptic intubating bronchoscopy. Korean J Anesthesiol. 2021 Jun;74(3):234-241. doi: 10.4097/kja.20384. Epub 2020 Oct 19.

  • Leeb G, Auchus I, Law T, Bickler P, Feiner J, Hashi S, Monk E, Igaga E, Bernstein M, Chou YC, Hughes C, Schornack D, Lester J, Moore K Jr, Okunlola O, Fernandez J, Shmuylovich L, Lipnick M. The performance of 11 fingertip pulse oximeters during hypoxemia in healthy human participants with varied, quantified skin pigment. EBioMedicine. 2024 Apr;102:105051. doi: 10.1016/j.ebiom.2024.105051. Epub 2024 Mar 8.

  • Ye H, Chu LH, Xie GH, Hua YJ, Lou Y, Wang QH, Xu ZX, Tang MY, Wang BD, Hu HY, Ying J, Yu T, Wang HY, Wang Y, Ye ZJ, Bao XF, Wang MC, Chen LY, Wang XX, Zhang XB, Huang CS, Wang J, Lu YP, Luo FQ, Zhou W, Wang CG, Cheng H, Liu WJ, Luo J, Wu YQ, Li RR, Wang D, Hou LQ, Shi L, Zhang J, Wang K, Pi X, Zhou R, Yang QQ, Wan PL, Li H, Wu SJ, Song SW, Cui P, Shu L, Islam N, Fang XM. Effect of lateral versus supine positioning on hypoxaemia in sedated adults: multicentre randomised controlled trial. BMJ. 2025 Aug 19;390:e084539. doi: 10.1136/bmj-2025-084539.

MeSH Terms

Conditions

HypoxiaEmergenciesAirway Remodeling

Interventions

Surgical Procedures, Operative

Condition Hierarchy (Ancestors)

Signs and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsDisease AttributesPathologic ProcessesPathological Conditions, Anatomical

Study Officials

  • Xiangming Fang, M.D.

    Zhejiang University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Xiangming Fang, M.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director, Head of Anesthesiology and Critical Care, Principal Investigator, Professor

Study Record Dates

First Submitted

May 24, 2024

First Posted

June 14, 2024

Study Start

June 20, 2024

Primary Completion (Estimated)

May 31, 2026

Study Completion (Estimated)

June 30, 2026

Last Updated

June 14, 2024

Record last verified: 2024-06

Data Sharing

IPD Sharing
Will not share

Locations