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| 63. |
- Astermark, Jan, et al.
(författare)
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Major surgery seems not to influence HIV disease progression in haemophilia patients
- 1998
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Ingår i: British Journal of Haematology. - : Wiley-Blackwell. - 0007-1048. ; 103:1, s. 10-14
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Tidskriftsartikel (refereegranskat)abstract
- The influence of major surgery on HIV disease progression and decline in CD4+ cell count was evaluated in 23 seropositive haemophilia patients. 24 HIV-infected patients served as non-operated controls. In addition, 32 age-matched seronegative subjects were included. The follow-up time was up to 5 years. During the course of the study, eight of the operated (35%) and 11 of the non-operated (48%) subjects developed HIV-related symptoms (P=0.267). The relative risk for developing HIV-related symptoms after surgery was 0.60 (95% CI 0.25; 1.48). A significant decline in CD4+ cell counts was observed in both the surgery (4.0 x 10(6)/l/month, 95% CI 2.0; 6.0 x 10(6), P=0.001) and the non-surgery (4.0 x 10(6)/l/month, 95% CI 2.0; 6.0 x 10(6), P=0.004) seropositive subgroup, but no difference between the two subgroups was seen (P=0.793). HIV (6.0 x 10(6)/l/month, 95% CI 2.1; 9.9 x 10(6), P=0.0005) but not surgery (-1.0 x 10(6)/l/ month, 95% CI -3.0; 0.96 x 10(6), P=0.647) was an independent predictor for the decline in CD34+ cell count. No interaction effect was observed between HIV infection and surgery (P=0.361). The annual amount of factor concentrate used for regular replacement therapy did not influence the decline in CD4+ cell count (P=0.492). We conclude that major surgery may be considered in symptom-free HIV-seropositive haemophilia patients, with CD4+ cell counts > or = 0.20 x 10(9)/l under similar premises as for seronegative subjects.
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| 64. |
- Astermark, Jan, et al.
(författare)
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Primary prophylaxis in severe haemophilia should be started at an early age but can be individualized
- 1999
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Ingår i: British Journal of Haematology. - : Wiley-Blackwell. - 0007-1048. ; 105:4, s. 1109-1113
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Tidskriftsartikel (refereegranskat)abstract
- The frequency of joint bleeds and orthopaedic joint scores were evaluated in 121 patients with severe haemophilia who had started prophylactic treatment with clotting factor concentrates at least once weekly before the age of 10. 75 of the patients started before the age of 3, 31 at the age of 3-5 and 15 at the age of 6-9. Each subgroup was evaluated separately. In addition, a regimen of one infusion weekly was compared with that of two (haemophilia B) or three (haemophilia A) infusions weekly in each patient. A significant decrease in the overall number of joint bleeds per year was found after shortening the infusion interval (P<0.005), but the individual bleeding pattern varied. In survival analysis of the first pathologic joint score event, those who started prophylaxis before the age of 3 had a better outcome overall than those starting at later ages (P=0.001). However, in subgroup analysis, no significant difference was seen in the annual number of joint bleeds and the development of arthropathy between those starting with, or shifting to, the more intensive regimen before the age of 3 and those that were put on this regimen at the age of 3-5. Age at start of prophylaxis was found to be an independent predictor for the development of arthropathy (P=0.0002), whereas dose and infusion interval at start were not. Our data emphasize the importance of starting replacement therapy during the first years of life. However, it seems that when beginning the regimen it can be individualized and adjusted according to the bleeding pattern. In this way, the need for a venous access system may be assessed on an individual basis.
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| 65. |
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