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The Role of Perioperative Ventilation (Gas Exchange) During Intrabdominal Surgery on Cognitive Function

NCT02267031 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 109

Last updated 2016-09-22

No results posted yet for this study

Summary

Abdominal surgery commonly requires perioperative relaxation and therefore controlled mechanical ventilation. However, respiratory support can be associated with minor, yet clinically significant changes in blood gas content. The inadvertent hyperoxia (excessively high oxygen) and/or hypocapnia (excessively low carbon dioxide) can result in transient changes in cerebral blood flow and cognitive impair.

Conditions

  • Response to Hyperoxia
  • Hypocapnia

Interventions

PROCEDURE

mechanical ventilation

Patients subjected to scheduled laparoscopic cholecystectomy were enrolled to the ongoing prospective study and randomized into four groups: 1) normoxia and normocapnia (nO2-nCO2), 2) hyperoxia and normocapnia (hO2-nCO2), 3) normoxia and hypocapnia (nO2-lCO2), and 4) hyperoxia-hypocapnia (hO2-lCO2). Normoxia PaO2 was referred to PaO2 of 70-140 mm Hg, hyperoxia 150-300 mm Hg, normocapnia PaCO2 of 35-48 mmHg and hypocapnia PaCO2 of 25-35 mmHg.

Sponsors & Collaborators

  • Northern State Medical University

    lead OTHER

Principal Investigators

  • Mikhail Y. Kirov, MD, PhD · Northern State Medical University

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-10-31
Primary Completion
2016-08-31
Completion
2016-08-31

Countries

  • Russia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02267031 on ClinicalTrials.gov