Heart block
Conditions
Interventions
Visual and TTE positioning group (experimental group):The placement of the non-invasive pacing electrodes was confirmed by visual and TTE positioning, and the minimum effective pacing energy was measu
Sponsors
Department of Anesthesiology, West China Hospital, Sichuan University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Aged >=18 years. 2. Patients undergoing elective intubation operation under general anesthesia. 3. Surgery below the chest. 4. The patient was diagnosed with second-degree type II atrioventricular block, complete left bundle branch block, or left anterior branch block + complete right bundle branch block by electrocardiogram before surgery. 5. Heart rate below 60 beats/min after anesthesia induction.
Exclusion criteria
Exclusion criteria: 1. Complicated with cardiac insufficiency (NYHA cardiac function grade >=3), severe cardiomyopathy, acute myocardial infarction, and pericardial tamponade. 2. Patients with severe emphysema, acute cerebral infarction, severe trauma, multiple rib fracture or chronic renal failure (glomerular filtration rate < 30ml/min). 3. Previous history of pacemaker implantation. 4. The patient had a history of Asperger's seizure.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Minimum effective energy for pacing; | — |
Secondary
| Measure | Time frame |
|---|---|
| Body mass index;Electrical impedance of the chest wall;Distance of skin to pectoralis major muscle;Distance of skin to intercostal muscle;Distance of skin to pleura ; | — |
Countries
China
Contacts
Public ContactLi Xiaoqiang
Department of Anesthesiology, West China Hospital, Sichuan University
Outcome results
None listed