None listed
Conditions
Interventions
None listed
Sponsors
Asan Medical Center
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: The research participants will include patients aged 20 years or older who are undergoing general anesthesia surgery at Asan Medical Center, with the insertion of an esophageal stethoscope and invasive arterial pressure monitoring.
Exclusion criteria
Exclusion criteria: Patients aged 80 years or older Patients with esophageal varices at risk of bleeding during esophageal stethoscope insertion Patients in whom esophageal stethoscope placement is technically difficult due to surgical approach or anatomical considerations Cases where heart sound monitoring equipment is unavailable or where hemodynamic monitoring cannot be performed due to technical limitations Patients undergoing emergency procedures, cardiac surgery, or major vascular surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| S1 amplitude;S2 amplitude;Systolic Time Interval, STI;Systolic Time Interval Variation, STV | — |
Secondary
| Measure | Time frame |
|---|---|
| Mean Blood Pressure, MBP;pressure to change in time, dp/dt;Systemic Vascular Resistance, SVR;Cardiac Output, CO;Stroke Volume, SV;Stroke Volume Variation, SVV | — |
Countries
Korea, Republic of
Contacts
Public ContactWoo-Young Seo
Asan Medical Center
Outcome results
None listed