Ugeskrift for laeger
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Ugeskrift for laeger · May 2001
Meta Analysis[Long-term oxygen therapy (LTOT) in chronic obstructive lung disease (COL)].
A substantive amendment to this systematic review was last made on 12 April 1999. Cochrane reviews are regularly checked and updated if necessary. ⋯ Four randomised controlled trials were identified. Data from none of these trials could be aggrigated because of differences in trial design and patient selection. Trial 1, continuous oxygen therapy versus nocturnal oxygen therapy: there was a significant improvement in mortality after 24 months (Peto odds ratio 0.45, 95% confidence interval 0.25 to 0.81). Trial 2, oxygen versus no oxygen: there was a significant improvement over five years in mortality in the group receiving oxygen (Peto odds ratio 0.42, 95% confidence interval 0.18 to 0.98). Trial 3, nocturnal oxygen versus no oxygen in patients with arterial desaturation at night: there was no difference in mortality at 36 months. Trial 4, long term oxygen versus no oxygen in moderate hypoxaemia: there was no effect on survival for up to three years of follow up. REVIEWERS' CONCLUSION: Long term oxygen therapy improves survival in a selected group of COPD patients with severe hypoxaemia (arterial PO2 less than 8.0 kPa). Long term oxygen does not appear to improve survival in patients with moderate hypoxia or those who only have arterial desaturation at night.
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Recent years have seen an increasing number of car occupants with neck complaints following a car collision and a declining number of persons involved in car crashes--a relationship that is not well understood. Presumably less than 5% will suffer from persistent, (long-lasting), disabling neck pain. Although mostly men are involved in motor vehicle accidents, an equal number of men and women seek emergency care, but it is mostly women, who have persistent (long-lasting) neck complaints after a car collision. ⋯ Whiplash should be considered a risk factor rather than a medical diagnosis. The association between cause (whiplash mechanism) and effect (symptoms) is poor. Persistent (long-lasting) health problems from a whiplash should be treated like other post-traumatic conditions, and need a bio-psycho-social approach.
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SERM describes a category of drugs that exert their influence on estrogen-sensitive tissue and are known especially in the treatment of estrogen receptor-positive breast cancer. The development and clinical trials of new SERM in recent years seem to establish more fields of diseases, where treatment with SERM may be indicated.