Table 1

 Patient characteristics

CharacteristicN
*Defined as pulmonary oedema or a PaO2/FiO2 ratio ⩽200, or the occurrence of a rhythm disturbance or an inadequate cardiac performance.
FiO2, fraction of inspired oxygen; PaO2, partial pressure of oxygen in arterial blood; WFNS, World Federation of Neurological Surgeons.
Total number68
Women53 (78%)
Poor condition on admission (WFNS IV–V)32 (47%)
Amount of extravasated blood (Hijdra score)
    Median ventricular score (range)3 (0–12)
    Median cisternal score (range)20 (3–30)
Treatment of aneurysm
    Clipping21 (31%)
    Coiling22 (32%)
    None25 (37%)
Median troponin I concentration (range) in μg/l0.4 (0–85.2)
Abnormal troponin I35 (52%)
Outcome events
    Pulmonary oedema19 (28%)
    PaO2/FiO2 ratio ⩽20025 (37%)
    Rhythm disturbances11 (16%)
    Inadequate cardiac performance17 (25%)
Predefined outcome
    Cardiopulmonary complications*39 (57%)
    Poor clinical outcome40 (59%)