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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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Mainstream capnometer | Experimental |
| |
| Microstream capnograph | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| No-DCCM | Device |
|
|
| Measure | Description | Time Frame |
|---|---|---|
| the malfunction rate of capnograph | 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).
Abbreviation : DCCM, Direct connect catheter mount | 1 day |
| Measure | Description | Time Frame |
|---|---|---|
| The cumulative survival rate of capnometers under the conditions of water | 1. Kaplan-Meier analysis 1-1. Water conditions in tracheal tube
1-2. Capnometers
1-3. Comparison group
Abbreviation : DCCM, Direct connect catheter mount | 1 day |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hanyang University | Seoul | 133-792 | South Korea |
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| ID | Term |
|---|---|
| D011654 | Pulmonary Edema |
| D006470 | Hemorrhage |
| ID | Term |
|---|---|
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| ID | Term |
|---|---|
| D014867 | Water |
| ID | Term |
|---|---|
| D006878 | Hydroxides |
| D000468 | Alkalies |
| D007287 | Inorganic Chemicals |
| D000838 | Anions |
| D007477 |
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| DCCM | Device |
|
|
| Water 5ml in tracheal tube | Other |
|
| Water 10ml in tracheal tube | Other |
|
| The consistency of ETCO2 between No-DCCM group and DCCM group under the water-free conditions |
2-1. Capnometers
2-2. Comparison group
| 1 day |
| Ions |
| D004573 | Electrolytes |
| D010087 | Oxides |
| D017601 | Oxygen Compounds |