Comparison · NCT01214057-a72ef50f
Total Intravenous Anesthesia vs Inhaled Anesthesia: Number of Participants for Whom Surgical Field Visualization Was Deemed Severely Compromised
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
2 sourcestrial-comparisons-2026-03-23-0.1.0
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ConductScience Library. Total Intravenous Anesthesia vs Inhaled Anesthesia: Number of Participants for Whom Surgical Field Visualization Was Deemed Severely Compromised. Trial comparisons, record NCT01214057-a72ef50f. Release trial-comparisons-2026-03-23-0.1.0, 23 Mar 2026. https://conductscience.org/library/comparisons/NCT01214057-a72ef50f
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Measures6
Calculated by ConductScience from the counts the trial posted to ClinicalTrials.gov.
| Measure | Value | 95% interval, lower | 95% interval, upper | Method | Note |
|---|---|---|---|---|---|
| Risk in group 1 | 0 | 0.0000000000000000278 | 0.242 | wilson | |
| Risk in group 2 | 0 | 0 | 0.259 | wilson | |
| Risk difference, group 1 minus group 2 | 0 | -0.259 | 0.242 | newcombe hybrid score | |
| Risk ratio, group 1 over group 2 | log | a group has no participants with the outcome | |||
| Odds ratio, group 1 over group 2 | log | a cell of the two-by-two table is zero | |||
| Number needed to treat | from the risk difference interval | the two groups' risks are equal |
Source ClinicalTrials.gov
Groups2
Neither group, or both, names a comparator, so the groups keep ClinicalTrials.gov's order.
| Group | Title | Description | With the outcome | Analysed | ClinicalTrials.gov code |
|---|---|---|---|---|---|
| Group 1 | Total Intravenous Anesthesia | Total Intravenous Anesthesia (TIVA) with propofol and remifentanyl~Propofol and Remifentanyl: Anesthesia will be induced with lidocaine 0.5 mg kg, propofol infusion at 250 mcg/kg/min (to reduce visual bias of propofol infusion) and total volume infused will be adjusted for an induction dose of 2-3 mg/kg before bolus of muscle relaxant, rocuronium 0.5 mg kg in both SR and PR groups. Remifentanil infusion will be started at a rate of 0.4 mcg/kg/min 1-2 minutes before the propofol infusion and a 100 ml 0.9% normal saline bag will be used to blind surgeons in the sevoflurane group. The target mean arterial blood pressure (MAP) will be maintained at 70-80 mm Hg by adjusting the propofol concentration within their range (100-150 mg ml for propofol) according to the anaesthesiologist's judgement and by surgeon request. If this failed, the remifentanil rate will be adjusted by 0.05 mg kg min. | 0 | 12 | OG000 |
| Group 2 | Inhaled Anesthesia | Inhaled anesthesia with sevoflurane and remifentanyl.~Sevoflurane and Remifentanyl: Sevoflurane 1-3% will be administered in group SR, and the infusion of propofol will be stopped. After intubation remifentanil infusion will be changed to 0.2 mcg/kg/min. The target mean arterial blood pressure (MAP) will be maintained at 70-80 mm Hg by adjusting the sevoflurane concentration within their range (between 1-3 vol% for sevoflurane) according to the anaesthesiologist's judgement and by surgeon request.If this failed, the remifentanil rate will be adjusted by 0.05 mg kg min.In order to limit the amount of fluids remifentanil wil be diluted at a concentration of 4 mg in 100 ml. | 0 | 11 | OG001 |
Source ClinicalTrials.gov
Outcome
- Type
- PRIMARY
- Title
- Number of Participants for Whom Surgical Field Visualization Was Deemed Severely Compromised
- Description
Surgeons rated the surgical field using the Boezaart score (which ranges from 0 to 5, with 5 indicating the most compromised surgical field), and this outcome measure reports the number of participants with a Boezaart score of 5. Boezaart scoring is as follows: 0 (No bleeding, cadaveric conditions); 1 (Slight bleeding, no suctioning required), 2 (Slight bleeding, occasional suctioning required; 3 (Slight bleeding, frequent suctioning required; bleeding threatens surgical field a few seconds after suction is removed); 4 (Moderate bleeding, frequent suctioning required, and bleeding threatens surgical field directly after suction is removed); 5 (Severe bleeding, constant suctioning required; bleeding appears faster than can be removed by suction; surgical field severely threatened and surgery usually not possible).
- Time frame
- during the surgery (from the moment of injection of local anesthetic in the nasal cavity to the end of application of local hemostatis agents, about 1 to 5 hours)
- Population
Source ClinicalTrials.gov
Trial
- Title
- Total Intravenous Anesthesia (TIVA) vs. Inhaled Anesthesia for Endoscopic Sinus Surgery.
- NCT number
- NCT01214057
- Phases
- NA
- Conditions
- Chronic Rhinosinusitis
- Interventions
- Propofol and Remifentanyl, Sevoflurane and Remifentanyl
- Lead sponsor
- The University of Texas Health Science Center, Houston
- Results first posted
- 2021-11-01
- Results on ClinicalTrials.gov
- https://clinicaltrials.gov/study/NCT01214057?tab=results
Source ClinicalTrials.gov
Source
- Release
- trial-comparisons-2026-03-23-0.1.0
- Release manifest SHA-256
- f66225897fbf258b57ea10bdacfd0347d3cdfda93f7f5685234b7e06ea36fa57
- AACT copy
- 2026-03-23
- Tables read
- outcome_counts.parquet, outcome_measurements.parquet, outcomes.parquet, reported_event_totals.parquet, reported_events.parquet, result_groups.parquet, studies.parquet, ctgov_trial.parquet
Source ClinicalTrials.gov
Sources 2
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
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
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions. The measures are ConductScience's calculation from them.
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