Causes | Tachycardia(n = 145) | Tachy-CA(n = 24) | Tachy-Hypo(n = 48) | Tachy-Normo(n = 39) | Tachy-Hyper(n = 37) |
---|---|---|---|---|---|
Tachy-CA, tachycardia in association with cardiac arrest; Tachy-Hypo, tachycardia in association with hypotension; Tachy-Normo, tachycardia in association with normotension; Tachy-Hyper, tachycardia in association with hypertension. | |||||
Examples of causes: | |||||
Cardiopulmonary events: Tachy-CA, pressure on pericardium (n = 2), myocardial infarct (n = 1); Tachy-Hypo, left ventricular failure (n = 1), tension pneumothorax (n = 2), haemothorax (n = 1), gas embolism (n = 1); Tachy-Normo, myocardial infarct (n = 1); Tachy-Hyper, pulmonary oedema (n = 1), fat embolism (n = 1). | |||||
Surgical factors: Tachy-CA, central venous cannula wire (n = 2); Tachy-Hypo, central venous cannula wire (n = 2), hip cement or reaming (n = 1); Tachy-Normo, pneumoperitoneum (n = 1); Tachy-Hyper, hip cement (n = 1). | |||||
Central nervous system: Tachy-Hyper, ruptured cerebral aneurysm (n = 1). | |||||
Metabolic: Tachy-Normo: iatrogenic hyperthermia (n = 1); Tachy-Hyper: malignant hyperthermia (n = 1). | |||||
Light anaesthesia: Tachy-Hyper, pain (n = 1), light anaesthesia (n = 1), awareness (n = 3). | |||||
Hypercapnia: Tachy-Normo, hypoventilation (n = 1), malfunction circle or soda lime (n = 1), inhaled CO2 (n = 1); Tachy-Hyper, hypoventilation (n = 2), malfunction circle or soda lime (n = 2). | |||||
*Variation from 100% reflects rounding of percentages. | |||||
Allergy | 11 | 17 | 21 | 5 | 0 |
Airway | 4 | 4 | 4 | 3 | 6 |
Hypovolaemia | 3 | 13 | 4 | 0 | 0 |
Regional anaesthesia | 1 | 0 | 4 | 0 | 3 |
Drugs | 33 | 25 | 19 | 48 | 37 |
Cardiopulmonary events | 8 | 13 | 11 | 3 | 6 |
Autonomic reflexes | 9 | 13 | 4 | 12 | 9 |
Sepsis | 1 | 0 | 0 | 5 | 0 |
Surgical factors | 6 | 8 | 6 | 3 | 6 |
Pre-existing condition | 1 | 4 | 0 | 0 | 0 |
Central nervous system | 1 | 0 | 0 | 0 | 3 |
Metabolic | 2 | 4 | 0 | 3 | 3 |
Monitoring | 1 | 0 | 4 | 0 | 0 |
Other | 2 | 0 | 6 | 0 | 0 |
Light anaesthesia | 4 | 0 | 0 | 0 | 18 |
Hypercapnia | 4 | 0 | 0 | 8 | 9 |
Not determined | 8 | 0 | 17 | 10 | 0 |
Total (%)* | 99 | 101 | 100 | 100 | 100 |