PubMed · 8405714
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M Bax. 1993. Sombre reading.. https://doi.org/10.1111/j.1469-8749.1993.tb11562.x
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BACKGROUND: Traumatic brain injury is common and presents a health problem with significant effect on quality of life. Hyperbaric oxygen therapy (HBOT) has been suggested to improve oxygen supply to the injured brain and, therefore, to reduce the volume of brain that will ultimately perish. It is postulated that the addition of HBOT to the standard intensive care regimen may result in a reduction in patient death and disability as a result of these additional brain-preserving effects. OBJECTIVES: To assess the benefits and harms of adjunctive HBOT for treating traumatic brain injury. SEARCH STRATEGY: We searched CENTRAL (The Cochrane Library Issue 4, 2003), MEDLINE (1966 - 2003), EMBASE (1974 - 2003), CINAHL (1982 - 2003), DORCTHIM (1996 - 2003), and reference lists of articles. Relevant journals were handsearched and researchers in the field were contacted. SELECTION CRITERIA: Randomised studies comparing the effect on traumatic brain injury of therapeutic regimens which include HBOT with those that exclude HBOT (with or without sham therapy). DATA COLLECTION AND ANALYSIS: Three reviewers independently evaluated the quality of the relevant trials using the validated Oxford-Scale (Jadad 1996) and extracted the data from the included trials. MAIN RESULTS: Four trials contributed to this review (382 patients, 199 receiving HBOT and 183 control). There was a trend towards, but no significant increase in, the chance of a favourable outcome when defined as full recovery, Glasgow outcome score 1 or 2, or return to normal activities of daily living (relative risk [RR] for good outcome with HBOT 1.94, 95% confidence interval [CI] 0.92 to 4.08, P=0.08). Pooled data from the three trials with 327 patients that reported mortality, showed a significant reduction in the risk of dying when HBOT was added to the treatment regimen (RR 0.69, 95% CI 0.54 to 0.88, P=0.003). Heterogeneity between studies was low (I(2) =0%), and sensitivity analysis for the allocation of dropouts did not affect that result. This analysis suggests we would have to treat seven patients to avoid one extra death (number needed to treat [NNT] 7, 95% CI 4 to 22). One trial suggested intracranial pressure was favourably lower in those patients receiving HBOT in whom myringotomies had been performed (WMD with myringotomy -8.2 mmHg, 95% CI -14.7 mmHg to -1.7 mmHg, P=0.01), while in two trials there was a reported incidence of 13% for significant pulmonary impairment in the group receiving HBOT versus 0% in the non-HBOT group (P=0.007). REVIEWERS' CONCLUSIONS: In people with traumatic brain injury, the addition of HBOT significantly reduced the risk of death but not of favourable clinical outcome. The routine application of HBOT to these patients cannot be justified from this review. In view of the modest number of patients, methodological shortcomings and poor reporting, this result should be interpreted cautiously, and an appropriately powered trial of high methodological rigour is justified to define those patients (if any) who can be expected to derive most benefit from HBOT.
AIMS: To determine the nature, extent, and quality of information provided by general practitioners (GPs) and hospital emergency departments to people after mild traumatic brain injury (MTBI). METHOD: A survey was distributed throughout New Zealand to a representative sample of GPs and emergency departments (EDs). RESULTS: 244 valid surveys were returned, (229 from GPs and 15 from EDs), giving a return rate of 50.1%. Included with the returned surveys were 145 samples of information that these agencies typically provide after MTBI. Overall, 45.9% of respondents (93.4% of EDs and 42.8% of GPs) provided an information sheet to patients with a confirmed or suspected MTBI. These generally covered signs and symptoms; when to seek medical attention; and advice about pain relief, driving, alcohol, and rest. Of the information sheets provided by EDs, 92.9% had a FRE score of over 61 (the level recommended to be able to be read by 70% of the population), compared to 56% of those provided by GPs. Information sheets ranged in length from half a page to 10 pages, with those provided by EDs generally longer than those provided by GPs (mean 33.6 compared to 12.9 sentences). CONCLUSIONS: Less than half of the GPs who returned questionnaires routinely provided information sheets about head injury and what to expect. Of the sample information sheets that were returned, just under half did not meet the criteria for being able to be read by 70% of the population.
OBJECTIVE: To determine the mode of death in patients admitted to an intensive care unit (ICU) after cardiac arrest who died before hospital discharge. DESIGN: Prospectively defined retrospective review of a database and individual patient medical records and ICU charts. SETTING: Eleven-bed multidisciplinary intensive care unit in a general hospital in the United Kingdom. PATIENTS AND PARTICIPANTS: All patients admitted to ICU between February 1998 and July 2003 after a cardiac arrest in the previous 24 h. MEASUREMENTS AND RESULTS: The outcome at hospital discharge and mode of death in non-survivors were recorded. Based on the mode of death, non-survivors were placed in one of three groups: multiple organ failure death, neurological death or cardiovascular death. Two hundred and five patients were admitted to ICU after a cardiac arrest; 113 (55.1%) after out-of-hospital cardiac arrest and 92 (44.9%) after in-hospital cardiac arrest. One hundred and twenty-six (61.5%) patients died before hospital discharge and of these 58 (46.0%) died due to neurological injury. After cardiac arrest, 22.9% of the in-hospital patients and 67.7% of the out-of-hospital patients died due to neurological injury, irrespective of the primary cardiac arrest arrhythmia. CONCLUSIONS: Two-thirds of the patients dying after out-of-hospital cardiac arrest died due to neurological injury and this proportion was approximately the same for ventricular fibrillation/ventricular tachycardia and pulseless electrical activity/asystole. Approximately a quarter of the patients dying after in-hospital cardiac arrest died due to neurological injury.