Risk of bleeding and inhibitor development after circumcision of previously untreated or minimally treated severe hemophilia A children.
Pediatr Hematol Oncol
; 29(5): 485-93, 2012 Aug.
Article
em En
| MEDLINE
| ID: mdl-22866674
ABSTRACT
BACKGROUND:
Surgery and intensive factor VIII (FVIII) replacement may be risk factors for development of inhibitors.OBJECTIVE:
To evaluate time and rate of inhibitor development postcircumcision over 12-month period, and to assess bleeding of children with severe hemophilia A after low-dose FVIII replacement and local hemostasis. PATIENTS ANDMETHODS:
Sixty-one previously untreated patients (PUPs) or minimally treated patients (MTPs) with severe hemophilia A less than 36 months were enrolled; 25 underwent circumcision during the 18-month enrollment period, and 36 matched patients were not circumcised. All patients were treated on demand with plasma-derived FVIII, and all were inhibitor negative at the time of enrollment. Intron 22 inversion was analyzed. A potent hemostatic agent (gelatin sponge) was applied on the site of surgery, and then dressed with gauze. Two doses of FVIII concentrate (25 U/kg) were given, 1 hour before circumcision and 1 hour before removal of dressing. The inhibitor was determined every 8 exposure days (EDs).RESULTS:
None of the patients had bleeding or infection, except one who had minimal transient bleeding 8 days after surgery, and was treated easily by a single dose of FVIII (50 U/kg). After a median of 16 EDs, high-titer inhibitors developed in seven patients three patients in the circumcised group (12%) in contrast to four patients (11.1%) in the noncircumcised group.CONCLUSION:
Two doses factor concentrate and gelatin sponge application were generally enough to prevent bleeding after circumcision of severe hemophilia A. Circumcision and low-dose FVIII protocol were not an additional risk for development of high-titer inhibitor.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Fator VIII
/
Hemostáticos
/
Circuncisão Masculina
/
Esponja de Gelatina Absorvível
/
Hemofilia A
/
Hemorragia
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Child
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Child, preschool
/
Humans
/
Infant
/
Male
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article