The Effect of Nasal Continuous Positive Airway Pressure (N-CPAP) on Arterial pCO2 During Spinal Anesthesia

NCT ID: NCT01622647

Last Updated: 2013-09-06

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

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-07-31

Study Completion Date

2013-08-31

Brief Summary

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The proposed study intends to investigate several aspects of the respiratory effects of intravenous sedation of patients undergoing spinal anesthesia for knee replacement surgery. The study will include assessment of PaCO2 during the intraoperative period. PaCO2 is expected to be elevated as a result of intravenous sedation and postural factors. Further, the study will investigate how application of Nasal Continuous Positive Airway Pressure (N-CPAP) may impact PaCO2.

Detailed Description

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Conditions

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Knee Replacement Surgery

Keywords

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NCPAP

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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NCPAP Group

Group of patients that do receive NCPAP treatment

Group Type ACTIVE_COMPARATOR

Nasal Continuous Positive Airway Pressure (NCPAP)

Intervention Type OTHER

Subjects will receive NCPAP

No NCPAP

subjects will not receive NCPAP

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Nasal Continuous Positive Airway Pressure (NCPAP)

Subjects will receive NCPAP

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* American Society of Anesthesiology Class I, II, or III patients
* Age over 21 years and under 70 years
* Planned surgical procedure is total knee arthroplasty (TKA) to be performed at Cape Fear Hospital
* Body Mass Index less than 40
* The patient and their attending anesthesiologist select spinal anesthesia with intravenous sedation, intrathecal morphine, and femoral nerve block as the preferred anesthesia plan

Exclusion Criteria

* Prior diagnosis of Obstructive Sleep Apnea based upon sleep study
* History of Stroke with residual neurologic deficit
* Prior diagnosis of Emphysema, Chronic Bronchitis, Chronic Obstructive Pulmonary Disease, or Asthma, or other chronic lung disease
* Recent history of significant nasal obstruction, epistaxis, or facial abnormality that may interfere with proper fit of a nasal CPAP mask
* Pregnancy
* Mental or other disability preventing a patient from personally giving informed consent
* Chronic narcotic or benzodiazepine treatment or dependency
* Allergy to Midazolam, Fentanyl, or Propofol
* Severe upper respiratory infection within the past three weeks
Minimum Eligible Age

21 Years

Maximum Eligible Age

69 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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New Hanover Regional Medical Center

OTHER

Sponsor Role collaborator

American Anesthesiology of the Carolinas

UNKNOWN

Sponsor Role collaborator

Pediatrix

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Stephen B Smith, MD

Role: PRINCIPAL_INVESTIGATOR

American Anesthesiology of the Carolinas

Locations

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New Hanover Regional Medical Center

Wilmington, North Carolina, United States

Site Status

Countries

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United States

Other Identifiers

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2012-Z078-1611

Identifier Type: -

Identifier Source: org_study_id