| Categories | Number | Percentage (%) |
| Cardiovascular | 9 | 28 |
| Hypotension | 5 |
|
| Bradycardia | 3 |
|
| No base line B.P | 1 |
|
| CNS | 4 | 12 |
| High spinal | 2 |
|
| Ineffective spinal | 1 |
|
| Tramadol infusion started without physician order in k/c of fits | 1 |
|
| Neuromuscular | 4 | 12 |
| Succinylcholine lost from loose connector | 1 |
|
| Under-dosage of succinylcholine | 1 |
|
| No muscle relaxation after succinylcholine | 2 |
|
| Medication related | 3 | 9 |
| Syntocinon given after delivery of first baby in twin pregnancy | 1 |
|
| Overdosage of syntocinon in STAT | 1 |
|
| Transamine 1 gm given in few seconds | 1 |
|
| Airway/Respiratory | 2 | 6 |
| Vomiting under spinal because of wrong h/o NPO | 1 |
|
| Unanticipated difficult airway | 1 |
|
| Renal | 1 | 3 |
| No urine in bag…faulty urine bag connector | 1 |
|
| Others | 10 | 30 |
| Belt not applied | 4 |
|
| Lower limb dropped from table under spinal | 2 |
|
| OR table/trolley not locked during shifting | 2 |
|
| Patient moved without co-ordination | 1 |
|
| Discrepancy in blood group | 1 |
|
| Total | 33 | 100 |