Table 2.

Factors associated with outcome following presentation with arterial emboli

Peri-operative factors	1980–1990 (n = 87)	1993–2003 (n = 116)
Pre-operative imaging	15%	47%*
History of smoking	71%	39%*
History of claudication	17%	35%*
ASA grade III or IV	48%	59%
Pre-operative heparinisation	33%	80%*
Prophylactic antibiotics	14%	63%*
Delay from pain onset to embolectomy (range)	29 h (1–264 h)	24 h (2–256 h)
Local anaesthesia	80%	41%*
Presence of anaesthetist	46%	88%*
On-table angiography	0%	16%*
Good quality inflow	39%	74%
Good quality back-bleeding	75%	61%
Thrombolysis	0%	22%*

^*P < 0.05 (chi-squared test).