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The Effect of 10 cm Catheter Mount on Malfunction of Capnometers Under the Conditions of Water

Not Applicable
Completed
Conditions
Cardiopulmonary Resuscitation
Pulmonary Edema
Hemorrhage
Registration Number
NCT02072343
Lead Sponsor
Hanyang University
Brief Summary

Capnometer has been used to assess the success of intubation and the quality of cardiopulmonary resuscitation. However, capnometers can malfunction under the conditions such as pulmonary edema and hemorrhage due to the vulnerability of capnometers for water. Investigators hypothesized that the use of 10cm catheter mount will reduce the malfunction of capnometers under the conditions of water.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
25
Inclusion Criteria
  • Healthy adults without underlying disease
Exclusion Criteria
  • Lung and heart disease
  • Drinking carbonated beverages

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Primary Outcome Measures
NameTimeMethod
the malfunction rate of capnograph1 day

The malfunction of capnograph is defined that the ETCO2 level is out-of the measured range of each patient under water-free conditions. The calculation formula of malfunction rate is as follows: malfunctioning time of capnograph / total experiment time (2min).

1. Water conditions in tracheal tube

* Water 5ml

* Water 10ml

2. Capnometers

* Mainstream capnometer

* Microstream capnograph

3. Comparison group

* No-DCCM group (proximal capnometer of DCCM)

* DCCM group (distal capnometer of DCCM)

Abbreviation : DCCM, Direct connect catheter mount

Secondary Outcome Measures
NameTimeMethod
The cumulative survival rate of capnometers under the conditions of water1 day

1. Kaplan-Meier analysis

1-1. Water conditions in tracheal tube

* Water 5ml

* Water 10ml

1-2. Capnometers

* Mainstream capnometer

* Microstream capnograph

1-3. Comparison group

* No-DCCM group (proximal capnometer of DCCM)

* DCCM group (distal capnometer of DCCM)

Abbreviation : DCCM, Direct connect catheter mount

The consistency of ETCO2 between No-DCCM group and DCCM group under the water-free conditions1 day

1. Bland-Altman plots under water 0ml in tracheal tube.

1-1. Capnometers

* Mainstream capnometer

* Microstream capnograph

1-3. Comparison group

* No-DCCM group (proximal capnometer of DCCM)

* DCCM group (distal capnometer of DCCM)

2. The intraclass correlation coefficient (ICC) under water 0ml in tracheal tube

2-1. Capnometers

* Mainstream capnometer

* Microstream capnograph

2-2. Comparison group

* No-DCCM group (proximal capnometer of DCCM)

* DCCM group (distal capnometer of DCCM)

Trial Locations

Locations (1)

Hanyang University

🇰🇷

Seoul, Korea, Republic of

Hanyang University
🇰🇷Seoul, Korea, Republic of

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