Anesthesia
Conditions
Brief summary
This study evaluates if dynamic arterial elastance measured before general anesthesia induction can predict the occurrence of hypotension due to general anesthesia induction.
Detailed description
As general anesthetics may be responsible for vasodilation and cardiac depression, arterial hypotension after induction of general anesthesia is a common event and may contribute to an adverse outcome. Dynamic arterial elastance has been proposed as a functional parameter of arterial tone and studies showed that it was able to predict pressure response to fluid administration in fluid-responsive patients and the amount of mean arterial pressure riduction as a conseguence of noradrenaline dose reduction in critically ill patients.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients that will be undergone to general anesthesia for surgery * Patients that need mini-invasive cardiac output monitoring during surgery
Exclusion criteria
* Age \<18 yo * Pregnancy * Arrhythmia * Severe valvular diseases * Uncorrectable alterations of arterial signal
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Baseline value of Eadyn as predictor of hypotension occurrence due to general anesthesia induction | From baseline (before general anesthesia induction) up to 30 minutes. | Dynamic arterial elastance (Eadyn) will be recorded at baseline before induction of general anesthesia. Mean arterial pressure (MAP) will be recorded at baseline and continuously until tracheal intubation. The lowest value of MAP will be considered to define hypotension occurrence. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Correlation between Eadyn and severity of hypotension due to anesthesia induction | From baseline (before general anesthesia induction) up to 30 minutes. | To evaluate the correlation between the baseline value of Eadyn and the severity of hypotension when it will occur after induction of general anesthesia |
Countries
Italy