Table 1.
Characteristics of the patients and bundle-branch block
| Variables | Patients (n=24) |
|---|---|
| Age, years, median (IQR) | 60 (45–69) |
| Female, n | 14 |
| Country of origin, n | United States of America, 8 |
| Japan, 6 | |
| India, 4 | |
| Canada, 1 | |
| France, 1 | |
| Malaysia, 1 | |
| Portugal, 1 | |
| South Korea, 1 | |
| United Kingdom, 1 | |
| Previous Medication, n | Calcium channel blockers, 2 |
| Aspirin, 4 | |
| Beta-blocker, 2 | |
| Lithium, 2 | |
| Statins, 2 | |
| Not mentioned, 4 | |
| None, 10 | |
| Surgical site, n | Abdomen, 11 |
| Dental and maxillofacial, 4 | |
| Thoracic (non-cardiac), 3 | |
| Orthopaedics (limbs), 3 | |
| Central nervous system, 2 | |
| Vascular, 1 | |
| Type of BBB, n | Left bundle-branch block, 21 |
| Right bundle-branch block, 3 | |
| Intermittent, 6 | |
| Rate-dependent bundle-branch block, 14 | |
| Haemodynamic alterations, n | Hypertension, 3 |
| Hypotension, 1 | |
| None, 10 | |
| Treatment, n | Deepening the level of anaesthesia, 8 |
| Discontinuation of anaesthesia, 3 | |
| Carotid sinus massage, 2 | |
| Medications | |
| Beta-blockers, 3 | |
| Atropine, 1 | |
| Nitro-glycerine, 1 | |
| Calcium channel blockers, 1 | |
| Amiodarone, 1 | |
| None, 9 | |
| Follow-up investigations, n | Cardiac enzymes, 13 |
| Holter, 7 | |
| Coronary angiography, 2 | |
| Dobutamine stress echocardiography, 2 | |
| None, 2 | |
| Outcome, n | Alive, 24 |
n=numbers