Study | Years | Setting | Included patients | Method for SAH diagnosis | Proportion OHCA/IHCA with SAH | Typical features of SAH patients | Resuscitation factors associated with SAH | Proportion of patients with achieved ROSC | Survival in patients with SAH and CA | Comment |
---|---|---|---|---|---|---|---|---|---|---|
Shapiro S | 1989-96 | Trauma centre in the US | Patients with respiratory or cardiac arrest and documented SAH | CT | NR | Â | NR | NR | 43% survival, 20% with good neurologic outcome | Does not report separate survival for respiratory/cardiac arrest |
Kürkciyan et al. | 1991-99 | Mid-sized urban city, OHCA registry | OHCA patients with ROSC admitted to the ED | CT and autopsy | 27 (4%) out of 765 (all OHCA aetiologies) | Age<40, headache, female gender | PEA/ASY in 93% | NR | 1 (4%) survived to hospital discharge |  |
Inamasu et al. | 2004-7 | Japanese tertiary centre | OHCA patients admitted to the ED with CT brain performed | CT | 26 (18%) out of 142 OHCA patients with CT brain had SAH | Female gender, headache | PEA/ASY in 96% | NR | 0 (0%) survived to hospital discharge | All patients had ROSC |
Mitsuma et al. | 2007-9 | Japanese tertiary centre | OHCA patients transported to the ED | CT (including post-mortem CT) | 14 (6%) of 244 OHCA patients | Female gender | PEA/ASY in 100% | 10(71%) out of 14 | 0 (0%) survived to hospital discharge | Â |
Cocchi et al. | 2006-9 | US tertiary care centre | OHCA admitted to the ED who had CT brain performed | CT | 1 (2%) out of 51 patients (CT Brain done) had confirmed SAH | NR | NR | NR | NR | Â |
Inamasu et al. | 2007 | Japanese tertiary centre | OHCA patients admitted to a tertiary centre | Â | 10 (8%) out of 124 OHCA patients had SAH on a CT brain | Â | Female gender | 10 (100%) out of 10 patients had ROSC | 0 (0%) survived to hospital discharge | Â |
Yuzawa et al. | 2003-7 | Japanese tertiary centre | CA patients with CT brain | CT and autopsy | 8 (18%) out of 45 patients had SAH | NR | NR | NR | NR | Focus on the paper is radiological features of post CA CT findings |
Wallmuller et al. | 1991-08 | ED ICU | Patients resuscitated from IHCA treated in the ED ICU | CT | 5 (0.5%) out of 1041 patients had SAH | NR | NR | NA | 0% | Only patients with ROSC included |