Ignite Creation Date:
2024-05-05 @ 9:03 PM
Last Modification Date:
2024-10-26 @ 9:58 AM
Study NCT ID:
NCT00804778
Status:
COMPLETED
Last Update Posted:
2008-12-09
First Post:
2008-12-05
Brief Title:
Comparison of USCOM Cardiac Output and Continuous Thermodilution Cardiac Output
Sponsor:
Beijing Chao Yang Hospital
Organization:
Beijing Chao Yang Hospital
Study Overview
Official Title:
Comparison of USCOM Cardiac Output and Continuous Thermodilution Cardiac Output in Patients With Coronary Artery Bypass Grafting
Status:
COMPLETED
Status Verified Date:
2008-12
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Its reported that USCOM can be used to measured patients CO and CI conveniently accurately and not confined to place because of its no aggressive its accuracy is doubtful
Detailed Description:
18 post-CABG coronary artery disease patients receiving treatment in the SCCU of Beijing Chaoyang Hospital from March to July 2006 male 10 and female 8 with average age of 6171士1007 years Aortic regurgitation or stenosis was ruled out by preoperational color ultrasonic imaging endocardiac shunt did not exist and there was no heart valve replacement in all the patients For all the patients after operation pericardial cavity or left thorax close drainage small tidal volume 6-8mlkg capacity controlled ventilation of breathing machine appropriate pressure support 10-15cmH2O and appropriate positive end-expiratory pressure were applied Intra-aortic balloon pumping IABP was not used Institutional ethics approval was obtained for the conduct of the trial
All the patients received CABG under general anesthesia and non-extracorporeal circulation Swan-Ganz CCO catheter mbo 744HF75 USA was set through right internal jugular vein or right subcalvian vein The catheters were connected with VIGILANCE monitor after patients went back SCCU and the position of the catheters was adjusted The bodyweight height instant heart rate central venous pressure invasive average aortic pressure and pulmonary wedge pressure of the patients were inputted into VIGILANCE monitor VIGILANCE monitor automatically and intermittently displayed and saved the results of CO CI SVR PVR and other hemodynamic parameters VIGILANCE determined the hemodynamic parameters every 40-55seconds based on the signal noise ratio
The period of USCOM monitoring time after CABG was 05-6hrs Lowered the bed head and had the patients in horizontal position during the monitoring Monitoring area was AV area Turned on USCOM selected AV mode inputted the sex height bodyweight and birth date of the patients Applied ultra transmission gel on the probe to let the probe contact the skin closely and let the probe point to the gluteal region nearly USCOM screen automatically displayed the lateral border of the Doppler blood flow curve scanned with flow monitor and speaker displayed the acoustic signal of blood stream The position depth and direction of the probe were adjusted based on the figure signals and acoustic signals acquired with USCOM probe Adjusted the sound volume wave gain or contrast or turned the patient head gently It indicated that the sound wave emitted by the probe had passed through aortic valve orifice or the root of aorta and the direction of sound beam paralleled to the blood flow through the aorta valve orifice when USCOM screen displayed maximum Doppler blood velocity wave and speaker displayed sharp and strong blood acoustic signals The results were frozen and saved Optimal measuring site depth the probe was depressed down and direction of the probe were marked for the next measurement Continuous 3-5 Doppler flow curves and the CO and CI measured on them were taken each time The flow curves of one respiratory circle were taken for atrial fibrillation patients For round probe plane diameter was 15cm and frequency was 33MHz The probe was disinfected with Iodophors each time before and after the measurement The data of patient height bodyweight and age and operation duration was acquired from anesthesia note CO time intervals measured with the two methods were about 2min There was at least 30min interval between each pair of CO Three to four pairs of CO and CI data were taken for each patient
All the patients received CABG under general anesthesia and non-extracorporeal circulation Swan-Ganz CCO catheter mbo 744HF75 USA was set through right internal jugular vein or right subcalvian vein The catheters were connected with VIGILANCE monitor after patients went back SCCU and the position of the catheters was adjusted The bodyweight height instant heart rate central venous pressure invasive average aortic pressure and pulmonary wedge pressure of the patients were inputted into VIGILANCE monitor VIGILANCE monitor automatically and intermittently displayed and saved the results of CO CI SVR PVR and other hemodynamic parameters VIGILANCE determined the hemodynamic parameters every 40-55seconds based on the signal noise ratio
The period of USCOM monitoring time after CABG was 05-6hrs Lowered the bed head and had the patients in horizontal position during the monitoring Monitoring area was AV area Turned on USCOM selected AV mode inputted the sex height bodyweight and birth date of the patients Applied ultra transmission gel on the probe to let the probe contact the skin closely and let the probe point to the gluteal region nearly USCOM screen automatically displayed the lateral border of the Doppler blood flow curve scanned with flow monitor and speaker displayed the acoustic signal of blood stream The position depth and direction of the probe were adjusted based on the figure signals and acoustic signals acquired with USCOM probe Adjusted the sound volume wave gain or contrast or turned the patient head gently It indicated that the sound wave emitted by the probe had passed through aortic valve orifice or the root of aorta and the direction of sound beam paralleled to the blood flow through the aorta valve orifice when USCOM screen displayed maximum Doppler blood velocity wave and speaker displayed sharp and strong blood acoustic signals The results were frozen and saved Optimal measuring site depth the probe was depressed down and direction of the probe were marked for the next measurement Continuous 3-5 Doppler flow curves and the CO and CI measured on them were taken each time The flow curves of one respiratory circle were taken for atrial fibrillation patients For round probe plane diameter was 15cm and frequency was 33MHz The probe was disinfected with Iodophors each time before and after the measurement The data of patient height bodyweight and age and operation duration was acquired from anesthesia note CO time intervals measured with the two methods were about 2min There was at least 30min interval between each pair of CO Three to four pairs of CO and CI data were taken for each patient
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None
Secondary IDs
| Secondary ID | Type | Domain | Link |
|---|---|---|---|
| lcscyyysohucom | None | None | None |