The Efficacy of Isocapnic Hyperpnoea to Accelerate Recovery After General Anesthesia With Sevoflurane

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Study Classification

INTERVENTIONAL

Study Start Date

2005-10-31

Study Completion Date

2008-12-31

Brief Summary

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The twilight phase between being asleep and awake during recovery from anesthesia is a precarious time fraught with risks to the post-operative patient. Hyperventilation accelerates the elimination of inhaled anesthetics but reduces their CO2 blood concentrations which delays their resumption of spontaneous breathing. We previously showed that our method of hyperventilation without affecting the CO2 concentration--which we call IH--accelerates the rate of emergence from anesthesia with isoflurane. In this study we will study the effect of IH on the rate of emergence from Sevoflurane anesthesia.

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Detailed Description

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Conditions

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Anesthesia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Interventions

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Isocapnic Hyperponea

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

1. Elective gynecological procedure
2. ASA I-III
3. Age 18-80 years
4. Signed informed consent

Exclusion Criteria

1. ASA IV
2. Patients with contra-indications to Sevoflurane anesthesia or other anesthetics included in the protocol
3. Active smoking, asthma or other history of hyper-reactive airway disease
4. History of chronic obstructive lung disease limiting exercise
5. History of angina, previous myocardial infarction, valvular heart disease, or heart surgery
6. Presence of heart murmurs or neck bruits
7. ECT abnormalities including atrial fibrillation, prolonged P-R interval, prolonged Q-T interval, presence of Q waves in inferior, anterior or lateral leads, criteria for left ventricular hypertrophy, T-wave abnormalities,
8. History of difficult airway access
9. Pulmonary hypertension and/or right ventricle dysfunction
10. History of bulous emphysema, and/or spontaneous pneumothorax
11. History of alcohol or drugs abuse
12. Known history of psychiatric illness and/or medications
13. Patients that required postoperative mechanical ventilation for any reason

Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No