OPS-5399.5
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients in the pediatric cardiology/cardiac surgery department who are undergoing a procedure under general anesthesia and for whom a CVC is indicated due to the procedure or their preexisting conditions. Age Up to 14 years Prior informed consent and informed, written consent of the parent/legal guardian
Exclusion criteria
Exclusion criteria: Children with an existing CVC or children for whom a CVC is not necessary for the operation. Lack of informed consent from the parent/guardian. >ASA 4 Emergency
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| What is the percentage of sonographically guided catheter installations that had to be corrected after radiological control with regard to the definitive position? If the legal guardians agree to participate in the study, on the day of the operation the neck vessels and the course of the child are first examined sonographically under sedation or general anesthesia in preparation. This procedure is already standard practice at our hospital. The examination is advanced without interruption by moving the ultrasound probe distally to the right supraclavicular anlage point. After appropriate image optimization and manipulation of the ultrasound probe, the superior vena cava is visualized in its entire course. This is followed by right parasternal plumbing to visualize the superior vena cava. Subsequently, the confluence of the superior vena cava with the right atrium is visualized from the subcostal side. Finally, a bicaval plumbing is visualized from the right parasternal side in the right lateral position. This preliminary examination serves to identify the optimal sonographic window for visualization of the superior vena cava as the target localization for the CVC tip. Further preparation for sonographically guided CVC insertion is performed under sterile conditions after disinfection of the puncture site. The ultrasound probe is covered with a commercially available sterile sheath. Puncture of the vein (internal jugular vein dextra) is performed under direct ultrasound vision with a puncture needle in standard practice of our clinic. After successful puncture, the catheter is placed in usual technique, but 10% deeper than calculated by standard formula. The ultrasound probe is now placed on the previously determined "best sonic window". The catheter tip is identified and the distance to the junction of the vena cava sup. and right atrium is measured by sonography. The CVC is then retracted by this exact distance and fixed in place. A systematic transthoracic ultraso | — |
Secondary
| Measure | Time frame |
|---|---|
| Which factors on the patient side lead to the fact that the CVC tip cannot be visualized sonographically? What is the discrepancy in the examination result between the transthoracic ultrasound of the pleura and the chest X-ray? What is the best sonographic window? In what percentage of cases is there radiographic evidence of pneumothorax? | — |
Countries
Germany
Contacts
Universitätsklinikum Bonn