Clinical Trial: Predictability of the Pulse Pressure Variation (PPV) During Spontaneous Ventilation on the Incidence of Hypotension During Induction of Anesthesia

Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional

Official Title: Predictability of the Pulse Pressure Variation During Spontaneous Ventilation on the Incidence of Hypotension During Induction of Anesthesia

Brief Summary: The purpose of this study is to find out the predictability of the pulse pressure variation during spontaneous ventilation on the incidence of hypotension during induction of anesthesia.

Detailed Summary:
Sponsor: Seoul National University Hospital

Current Primary Outcome: Changes of heart rate and systolic arterial blood pressure from baseline values immediately before tracheal intubation [ Time Frame: Three minutes after anesthesia agent injection ]

First, we measure the baseline heart rate and systolic arterial blood pressure and calculate the baseline heart rate and blood pressure.

At 3 minutes after anesthesia agent injection we record the heart rate and blood pressure, and perform endotracheal intubation. Then we calculate the percentile change of blood pressure and heart rate from the baseline values.



Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Changes of heart rate and systolic arterial blood pressure from baseline values, three minutes before intubation [ Time Frame: Three minutes before endotracheal intubation ]
    We collect the patient's vital signs for 1 second interval during anesthesia induction. We collect the patient's heart rate and blood pressure values for three minutes before endotracheal intubation, and average the numbers. Then we compare the numbers from the baseline value and calculate the changes.
  • Changes of heart rate and systolic arterial blood pressure from baseline values, three minutes after intubation [ Time Frame: Three minutes after endotracheal intubation ]
    We collect the patient's vital signs for 1 second interval during anesthesia induction. We collect the patient's heart rate and blood pressure values for three minutes after endotracheal intubation, and average the numbers. Then we compare the numbers from the baseline value and calculate the changes.


Original Secondary Outcome: Same as current

Information By: Seoul National University Hospital

Dates:
Date Received: July 14, 2014
Date Started: July 2014
Date Completion:
Last Updated: April 19, 2016
Last Verified: April 2016