Comparison of Hemodynamic Changes by Using the Videolaryngoscope and the Macintosh Laryngoscope

Antalya Training and Research Hospital

Status: Completed

Conditions: Anesthesia Intubation Complication

Treatments: Device: Macintosh laryngoscope; Device: videolaryngoscope

Study type: Interventional

Funder types: Other

Identifiers

NCT02564640

AntalyaTRH 008

Details and patient eligibility

About

Tracheal intubation techniques that avoid or minimize pharyngolaryngeal stimulation might attenuate the hemodynamic stress response. Tracheal intubation using video laryngoscope needs comparatively less airway manipulation so, the investigators expect less hemodynamic response while using videolaryngoscope.

Full description

The hemodynamic stress response to tracheal intubation can precipitate adverse cardiovascular events in patients with cardiovascular disease. Which is shown to greatly increase the risk of myocardial infarction or stroke, especially in elderly patients with hypertension. Direct laryngoscopy and laryngoscopic stimulation of pharyngolaryngeal structures may be an important factor in the hemodynamic stress response associated with tracheal intubation.

Patients were randomly allocated to two groups using a permuted block randomization method: 1) patients intubated by using the videolaryngoscopy 2) patients intubated by using the Macintosh laryngoscope . SAP, MAP, and heart rate were measured and recorded in the operating room: At baseline, before intubation, immediately after intubation and 1,2,3,4 and 5 minutes after tracheal intubation.

Enrollment: 100 patients

Sex: All

Ages: 65 to 90 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• American Society of Anesthesiologists Physical Status II-III,
• aged over 65 years,
• controlled hypertensive patients,
• scheduled for elective coronary artery bypass grafting.

Exclusion criteria

• American Society of Anesthesiologists Physical Status IV,
• ejection fraction < 40%,
• any anatomical abnormality in head, neck or face,
• Mallampati score of IV,
• history of difficult intubation or laryngoscopy

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

---

100 participants in 2 patient groups

videolaryngoscope

Active Comparator group

Description:

patients intubated by using the videolaryngoscopy

Treatment:

Device: videolaryngoscope

Macintosh laryngoscope

Active Comparator group

Description:

patients intubated by using the Macintosh laryngoscope

Treatment:

Device: Macintosh laryngoscope