Cardiac Surgery Patients
Conditions
Interventions
Experimental group:Adjust local anesthetic concentration one by one
Sponsors
First Affiliated Hospital of Nanchang University
Eligibility
Sex/Gender
All
Age
18 Years to 65 Years
Inclusion criteria
Inclusion criteria: ?Patients undergoing elective median thoracotomy cardiac surgery ?Age 18-65 ?ASA grade II-III ?Body mass index 18.5-24kg/m2
Exclusion criteria
Exclusion criteria: ?Allergic to local anesthetic ropivacaine ?Patient has a history of chronic neuropathic pain ?Patients with preoperative albumin 120U/L or ALT>120U/L ?The patient 's preoperative platelet 33.8S or PT>12.1S (33.8 and 12.1 are the reference intervals set by the clinical laboratory of our hospital according to the current normal control values of 25.2 and 10.9, respectively. If the normal control value changes, the reference interval will also change accordingly) ?Concurrent participation in other clinical trials ?Patients and their families refused to be enrolled in the trial
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| At 30 minutes after the block is completed, the patient's block plane is measured with ice and the effectiveness of the block is determined by whether the T2-T6 plane is covered.; | — |
Secondary
| Measure | Time frame |
|---|---|
| Vital signs;Symptoms of local anesthetic intoxication;Postoperative Opioid Use;Postoperative NRS score;Postoperative mechanical ventilation time;length of stay in the Intensive Care Unit;Postoperative length of hospital stay;Plasma ropivacaine concentration; | — |
Countries
China
Contacts
Public Contactchenshibiao
Outcome results
None listed