Esophageal cancer, liver cancer
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.ASA I-III; 2.Age greater than 18 years old; 3.Postoperative chest CT examination is required due to medical condition.
Exclusion criteria
Exclusion criteria: 1.Infection or severe deformity at the puncture site; 2.with severe bleeding/coagulation disorders; 3.internal jugular vein thrombosis and anatomical variations; 4.installation of a pacemaker or unobservable P-waves on the ECG; 5.uncooperative or refusal to perform internal jugular vein puncture.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The vertical distance from the Insertion Point to the line connecting the two nipples;Catheter depth at maximum amplitude of P-wave;Distance from Insertion Point to sternal (medial) head;The vertical distance from sternal head to the line connecting the two nipples;Distance from mandibular angle to sternal head;Distance from Insertion Point to Mandibular Angle;Catheter depth at the onset of variation of the P-wave;The distance from the puncture point to the sternal stem; | — |
Countries
China
Contacts
Chongqing university cancer hospital