Clinical trial · Interventional
Tracheal Colonization and Outcome After Major Abdominal Cancer Surgery
NCT04002128CI-TRIAL-00076386completedN/AClinicalTrials.gov clinicaltrialsProvenance
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
The goals of this study were to investigate whether two anesthesia regimens, with and without N2O, and bacterial colonization influence respiratory complications after major abdominal surgery for cancer.
Conditions
Conditions (4)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colorectal Neoplasms Malignant | — | UNRESOLVED | — |
| Pancreatic Cancer, Adult | Malignant Pancreatic Neoplasm | CURATED_EXACT | 0.85 |
| Stomach Neoplasms | Gastric Neoplasm | ALIAS | 0.90 |
| Surgical Procedures, Operative | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Tracheal aspirates and nasal smears were taken in all the patients. Laparotomies were performed in all patients. | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- PLACEBO_COMPARATOR
- label
- Group air
- description
- Group air was mechanically ventilated using 35% oxygen in 65% air during the whole surgical procedure. Thiopental sodium was used for induction of anesthesia, muscle relaxation was maintained with vecuronium. General anesthesia with sevoflurane was maintained during the surgical procedure. Intraoperative analgesia was achieved with fentanyl boluses.
- interventionNames
- Other: Tracheal aspirates and nasal smears were taken in all the patients. Laparotomies were performed in all patients.
- type
- ACTIVE_COMPARATOR
- label
- Group nitrous oxyde (N2O)
- description
- Group N2O was mechanically ventilated using 35 % oxygen and 65 % of nitrous oxyde during the surgical procedure. Nitrous oxyde may increase cuff pressure during the general endotracheal anesthesia and result in the respiratory symptoms like sore throat, hoarseness and postoperative cough. Thiopental sodium was used for induction of anesthesia, muscle relaxation was maintained with vecuronium. General anesthesia with sevoflurane was maintained during the surgical procedure. Intraoperative analgesia was achieved with fentanyl boluses.
- interventionNames
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 90 Years
Show eligibility criteria text
Inclusion Criteria: * Adult patients diagnosis of gastric cancer, or colorectal cancer or pancreatic cancer * Scheduled for major abdominal surgery with organ resections * Written informed consent * Nasopharyngeal smears taken in the preoperative area * Tracheal aspirates taken at the end of the surgical procedure Exclusion Criteria: * Patients unable to understand study protocol and patients who refused study participation at any time * patients with clinically or radiologically confirmed acute respiratory infections at admission * antibiotic therapy due to the respiratory infections a week prior to the surgery
References
Publications (5)
- BACKGROUNDEvaristo-Mendez G, Rocha-Calderon CH. [Risk factors for nosocomial pneumonia in patients with abdominal surgery]. Cir Cir. 2016 Jan-Feb;84(1):21-7. doi: 10.1016/j.circir.2015.05.051. Epub 2015 Aug 8. Spanish. PMID 26259742
- BACKGROUNDFernandez-Bustamante A, Frendl G, Sprung J, Kor DJ, Subramaniam B, Martinez Ruiz R, Lee JW, Henderson WG, Moss A, Mehdiratta N, Colwell MM, Bartels K, Kolodzie K, Giquel J, Vidal Melo MF. Postoperative Pulmonary Complications, Early Mortality, and Hospital Stay Following Noncardiothoracic Surgery: A Multicenter Study by the Perioperative Research Network Investigators. JAMA Surg. 2017 Feb 1;152(2):157-166. doi: 10.1001/jamasurg.2016.4065. PMID 27829093
- BACKGROUNDde Albuquerque Medeiros R, Faresin S, Jardim J. [Postoperative lung complications and mortality in patients with mild-to-moderate COPD undergoing elective general surgery]. Arch Bronconeumol. 2001 May;37(5):227-34. doi: 10.1016/s0300-2896(01)75059-4. Spanish. PMID 11412514
- BACKGROUNDPayne KA, Miller DM. The Miller tracheal cuff pressure control valve. Clinical use in controlled and spontaneous ventilation. Anaesthesia. 1993 Apr;48(4):324-7. doi: 10.1111/j.1365-2044.1993.tb06954.x. PMID 8494136
- BACKGROUNDBraz JR, Volney A, Navarro LH, Braz LG, Nakamura G. Does sealing endotracheal tube cuff pressure diminish the frequency of postoperative laryngotracheal complaints after nitrous oxide anesthesia? J Clin Anesth. 2004 Aug;16(5):320-5. doi: 10.1016/j.jclinane.2004.03.001. PMID 15374551