Table 1 The prevalance of cardiac arrest and contributing factors in studies including series of patients with subarachnoid haemorrhage
Study | Years | Setting | Included patients | Proportion of SAH patients that had a CA | Factors associated with the occurrence of CA | Survival of SAH patients with CA | Factors associated with survival in those with CA |
|---|---|---|---|---|---|---|---|
Wartenberg et al. | 1996-2002 | Tertiary hospital in the US | CT or cerebrospinal fluid analysis | 21 (4%) of 546 SAH patients | NR | NR | NR |
Toussaint LG et al. | 1990-1997 | Tertiary hospital | All admitted SAH patients | 11 (3.6%) out of 305 SAH patients (5 IHCA, 5 OHCA, 1 EMS witnessed) | Low GCS, high Hunt Hess grade. aneurysm rupture | 6 (55%) out of 11 survived, 3 (27%) with good outcome | All survivors had a brief cardiac arrests requiring only defibrillation |
Inamasu et al. | 2003-2009 | Japanese tertiary centre | Admitted SAH patients | 11% of 315 SAH patients | NR | 0% survived | NR |
Vergouwen et al. | 2003 to 2008 | Registry of the Canadian Stroke Network | SAH patients treated at 11 hospitals | 64/931 (6.6%) had a cardiac or respiratory arrest | NR | CA patients had lower survival than those without (odds ratio 7.2 (2.0-25.7) | NR |