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| ID | Type | Description | Link |
|---|---|---|---|
| IRB protocol 35113 | Other Identifier | IRB protocol 35113 |
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Because of its simplicity of function and reliability, direct laryngoscopy it is routinely used for endotracheal intubation during general anesthesia. However, direct laryngoscopy is fraught with concerns for cardiovascular stimulation during induction of general anesthesia. This can be attributed to the placement of the laryngoscope blade into the vallecula and then applying force in an upward direction to expose the glottic opening. The average force necessary for visualization of the glottic opening is approximately 5.4kg. This can lead to significant pressor responses and tachycardia though stimuli to supraglottic region.
An alternative airway management device is the Shikani optical stylet (SOS). It is an effective, safe and reusable intubation device that has been shown to be effective in cases of difficult intubation. It consists of a fiberoptic bundle within a J - shaped malleable stainless steel sheath. At the proximal end of the sheath is an eyepiece with an attachment to a light source. An adjustable "tube stop" firmly affixes the endotracheal tube to the stylet, and has a port to be able to deliver oxygen. (4) The operator inserts the tip of the stylet with the loaded endotracheal tube into the patient's oropharynx and under direct visualization through the eyepiece, is able to visualize the vocal cords. Because the end of the stylet is at the end of the endotracheal tube, it can be directly visualized to be entering trachea past the vocal cords.
The investigators hypothesize that endotracheal intubation performed by the aid of SOS by minimizing oropharyngolaryngeal stimulation will result in fewer hemodynamic changes in patients with normal airways as compared with the MacIntosh laryngoscope.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| MacIntosh group | Active Comparator |
| |
| Shikani optical stylet | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Endotracheal Intubation | Device | General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with Shikani optical stylet (SOS) (one size) or MacIntosh laryngoscope blade size 3 for women and size 4 for men. Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for male in both groups. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
| Measure | Description | Time Frame |
|---|---|---|
| Heart Rate and Blood Pressure Double Product | The double product was measured. The double product is calculated by multiplying the heart rate with the systolic blood pressure. It is also known as the rate pressure product and it is used to measure hemodynamic response.The double product is calculated from the values obtained preinduction, during intubation and after intubation.(5 minutes after intubation)The double products from each time point are averaged to get one mean double product value. | Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. |
| Measure | Description | Time Frame |
|---|---|---|
| Time to Complete Laryngoscopy and Successful Intubation | Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| PennState Hershey Medical Center | Hershey | Pennsylvania | 17036 | United States |
No events
The study was performed at Penn State Milton S. Hershey Medical Center
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| ID | Title | Description |
|---|---|---|
| FG000 | MacIntosh Group | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with MacIntosh laryngoscope blade size 3 for women and size 4 for men. Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
| FG001 | Shikani Optical Stylet | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with Shikani optical stylet (SOS) (one size). Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
Sample size of 30 patient for each group was calculated based on previous publications (2,3) to obtain of power of 80% and alfa of 0.05 to detect a 20 bpm for heart rate and 20 mmHg for blood pressure difference for paired hemodynamic data.
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| ID | Title | Description |
|---|---|---|
| BG000 | MacIntosh Group | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with a MacIntosh laryngoscope blade size 3 for women and size 4 for men. Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Heart Rate and Blood Pressure Double Product | The double product was measured. The double product is calculated by multiplying the heart rate with the systolic blood pressure. It is also known as the rate pressure product and it is used to measure hemodynamic response.The double product is calculated from the values obtained preinduction, during intubation and after intubation.(5 minutes after intubation)The double products from each time point are averaged to get one mean double product value. | double product (DP) of systolic blood pressure multiplied by heart rate | Posted | Mean | Standard Deviation | (beats/minute)*mmHg | Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. |
|
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | MacIntosh Group | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with a MacIntosh laryngoscope blade size 3 for women and size 4 for men. Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
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NO adverse events
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Sonia Vaida | Penn State Milton S. Hershey Medical Center | 7175318433 | svaida@hmc.psu.edu |
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| ID | Term |
|---|---|
| D007442 | Intubation, Intratracheal |
| ID | Term |
|---|---|
| D058109 | Airway Management |
| D013812 | Therapeutics |
| D007440 | Intubation |
| D008919 | Investigative Techniques |
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| BG001 | Shikani Optical Stylet | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with Shikani optical stylet (SOS) (one size). Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
| BG002 | Total | Total of all reporting groups |
| Participants |
|
| Age, Continuous | Mean | Standard Deviation | years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
| OG001 | Shikani Optical Stylet | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with a Shikani optical stylet (SOS) (one size). Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. |
|
|
| Secondary | Time to Complete Laryngoscopy and Successful Intubation | Posted | Mean | Standard Deviation | seconds | Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. |
|
|
|
| 0 |
| 30 |
| 0 |
| 30 |
| EG001 | Shikani Optical Stylet | Endotracheal Intubation : General anesthesia will be induced with fentanyl 1-2 mcg/kg, 2-3 mg/kg propofol and maintained with 50% air /50% oxygen and isoflurane. Neuromuscular blockade will be obtained with rocuronium 0.5 mg/kg. Laryngoscopy will be performed with a Shikani optical stylet (SOS) (one size). Endotracheal intubation will be performed with an endotracheal tube of internal diameter of 7.0 mm l for female patients and 8 mm for males. Noninvasive blood pressure and heart rate will be recorded preinduction, preintubation, and every min for the first 5 min after successful intubation. The patients will be questioned post-operatively about symptoms of a sore throat, hoarseness, dysphonia or dysphagia in the Post Anesthesia Care Unit and again 24 hours after surgery. | 0 | 30 | 0 | 30 |
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