Trial · NCT07894692
Association of WWI With Difficult Intubation
NCT07894692, Completed, Cairo University
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Association of WWI With Difficult Intubation. Trials, record NCT07894692. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT07894692
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Association of WWI With Difficult Intubation
- NCT number
- NCT07894692
- Status
- Completed
- Enrollment
- 50 participants, actual
- Lead sponsor
- Cairo University
- Conditions
- General Anesthesia; Tracheal Intubation
- Interventions
- Weight, Height, BMI, Waist circumference, WWI, Neck circumference, Mallampati score, Sternomental distance, EGRI score, BMV grade Cormack-Lehane grade,Number of attempts Use of adjunts
- First posted
- 2026-10-26
- Last updated
- 2026-10-26
Source ClinicalTrials.gov
Registered outcomes13
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | The correlation between weight-adjusted waist index (WWI) and the incidence of difficult intubation. | from preoperative assessment until intubation up to 5 minutes after intubation | WWI measured preoperatively by a digital scale. Difficult intubation will be assessed by airway examination |
| Secondary | Incidence of difficult intubation | from intubation attempt until intubation success up to 5 minutes after intubation | Difficult intubation was defined as requiring two or more attempts, as this threshold allows earlier detection of clinically relevant airway difficulty and has been adopted in recent airway research. |
| Secondary | Predictive accuracy of WWI to predict difficult intubation | from preoperative assessment until intubation success up to 5 minutes after intubation | |
| Secondary | The cutoff value of WWI to predict difficult intubation. | from preoperative assessment until intubation success up to 5 minutes after intubation | |
| Secondary | Comparing the predictive ability of WWI to BMI to predict difficult airway | from preoperative assessment until intubation success up to 5 minutes after intubation | |
| Secondary | Correlation between weight-adjusted waist index (WWI) and Difficult mask ventilation | from preoperative assessment until intubation success up to 5 minutes after intubation | WWI measured preoperatively by a digital scale. Difficult ventilation will be assessed by examination. Correlation will be evaluated using the Pearson's or Spearman's correlation coefficient. |
| Secondary | Correlation between weight-adjusted waist index (WWI) and El-Ganzouri score | from preoperative assessment until successful intubation up to 5 minutes after intubation | WWI measured preoperatively by a digital scale. El-Ganzouri will be assessed by airway examination. Correlation will be evaluated using the Pearson's or Spearman's correlation coefficient. |
| Secondary | Correlation between WWI and Neck circumference | from preoperative assessment until successful intubation up to 5 minutes after intubation | WWI measured preoperatively by a digital scale. Neck circumference will be assessed by a tape. Correlation will be evaluated using the Pearson's or Spearman's correlation coefficient. |
| Secondary | Correlation between weight-adjusted waist index (WWI) and sternomental distance | from preoperative assessment until successful intubation up to 5 minutes after intubation | WWI will be measured preoperatively by a digital scale. Sternomental distance will be measured by a ruler. Correlation will be evaluated using the Pearson's or Spearman's correlation coefficient. |
| Secondary | Correlation between WWI and Mallampati score | from preoperative assessment until successful intubation up to 5 minutes after intubation | WWI will be measured preoperatively by a digital scale. The Mallampati score will be assessed by airway examination. Correlation will be evaluated using the Pearson's or Spearman's correlation coefficient. |
1 to 10 of 13Source ClinicalTrials.gov
See all 13 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT07894692
GET https://conductscience.org/api/trials/v1/NCT07894692/registered