© Borgis - New Medicine 4/2012, s. 99-101
*Anna Gorzelnik1, Monika Jabłońska-Jesionowska1, Lidia Zawadzka-Głos1, Anna Klukowska2
Perioperative management of children with von Willebrand disease and tonsillar hypertrophy in ENT Department of Children Hospital in Warsaw Medical University
1Department of Pediatric Otolaryngology, Medical University of Warsaw, Poland
Head of Department: Lidia Zawadzka-Głos, MD, PhD
2Department of Pediatrics, Hematology and Oncology, Medical University of Warsaw, Poland
Head of Department: prof. Michał Matysiak, MD, PhD
Summary
Introduction. The tonsillar hypertrophy are the most common children’s disease. The treatment of choice is surgery. Regardless of surgery procedure perioperative bleeding is still present. The problem with homeostasis occurs in 0.5-2 percent of cases due to bleeding disorders. The most common inherited coagulopaties is von Willebrand disease (vWD). vWD commonly presents with epistaxis, excessive bleeding following soft tissue trauma, ecchymosis. Three type of vWD have been described. The treatment of hemorrhage in patients with vWD is i.v. infusion of Desmopressin (Minirin), concentrate containing factor VIII/vWF or antifibrinolytic drugs.
Material and methods. From January 2008 to December 2011 in the Department of Pediatric Otholaryngology of Medical University of Warsaw we treated by surgery 16 children with von Willebrand disease because of the tonsillar hypertrophy.
Results. 8 children with vWD and tonsillar hypertrophy underwent adenoidectomy and 8 adenoidotonsillotomy. Von Willebrand disease has been recognized because of clinical symptoms and blood tests in preoperative time. We treated by surgery 14 children with type 1 and 2 children with type 2 of vWD. 14 children has received Desmopressin (Minirin) intravenously and 2 children has received factor VIII-vWF concentrate (HaemateP).
8 children has received etamsylat (Cyclonamina), all 16 children has received as antifibrinolytic therapy tranexamicum acidum (Exacyl).
Conclusions. Adenoidectomy with/or without tonsillotomy in children with von Willebrand disease seems to be safe procedure by using adequate treatment of haemostasis.
INTRODUCTION
The tonsillar hypertrophy are the most common children’s disease. The treatment of choice is surgery by adenoidectomy with/or without tonsillotomy. Regardless of surgery procedure perioperative bleeding is still present, but normally is stopped spontaneously. In 0.5-2 percent of cases we have a problem with homeostasis and some special treatment using haemostatic drugs has to be used. In 0.04 percent of patients the compatibility blood has to be transfused. The cause of severe hemorrhage is perioperative trauma of soft tissues in naso- or oropharynx, not complete excision of tonsils and haemorrhagic or vascular diathesis.
The most common inherited bleeding disorder is von Willebrand disease (vWD). 1% of general population has insufficiency or dysfunction of von Willebrand factor (vWF). Most of those deficiencies are clinically asymptomatic. Only in 1 of 10 cases of vWD the abnormal bleeding is observed. vWD is inherited in an autosomal -dominant often then autosomal-recessive pattern. vWF is encoded by a gen on chromosome 12 and synthesized in vascular endothelial cells and megacariocytes. The vWF has two haemostatic functions: preventing degradation of factor VIII and mediates platelet adhesion to damaged endothelium.
vWD commonly presents with epistaxis, excessive bleeding following soft tissue trauma, ecchymosis. Three type of vWD have been described. The most common is type 1 (75% of all) in them the bleeding is very mild, in type 2 bleeding is more excessive and in type 3 most severe due to absent of vWF. In type 1 the coagulopathy is characterized by partial quantitative vWF deficiency and in type 2 by qualitative defect in vWF. The treatment of hemorrhage in patients with vWD is i.v. infusion of Desmopressin (Minirin), concentrate containing factor VIII/vWF or antifibrinolytic drugs. The knowledge of the type of vWD is very important in preoperative care to plan surgery procedures or substitute treatment.
AIM
The aim of this study was to asses perioperative management of adenoidectomy or adenotonsillotomy in children with von Willebrand disease.
MATERIAL AND METHODS
From January 2008 to December 2011 in the Department of Pediatric Otholaryngology of Medical University of Warsaw we treated by surgery 16 children with von Willebrand disease. All of them has tonsillar hypertrophy. It was 5 girls and 11 boys in age from 3 to 12 year. We analyzed preoperative laboratory tests, surgery technique, perioperative treatment of haemostasis and postoperative complications.
RESULTS
All children with tonsillar hypertrophy and von Willebrand disease has been treated by surgery using La Force adenotome or Becman’s knife and tonsillotome. 8 children underwent adenoidectomy and 8 adenoidotonsillotomy. At the same time in 3 children lower level of XII factor has been diagnosed and in 1 child spherocytosis. Von Willebrand disease has been recognized because of clinical symptoms and blood tests in preoperative time. The activated partial thromboplastin time (aPTT) was from 30.2 to 61,8 seconds and was extended in 9 children. Activity of ristocetin cofactor of vWF (vWF:RCo) was from 36.12 to 54.2 and was decreased in all children, the level of antigen vWF (vWF:Ag) was from 38,4-52,8 and was decreased in 15 children. The activity of factor VIII was from 47,3 to 92.8 and was decreased in 1 child. The plates level was normal in all children, as well as the INR factor (0.98 to 1,23). 10 children has blood group “0”, 4 children “A” and 2 children “B”.
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Piśmiennictwo
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