The spectrum and severity of bleeding in adolescents with low von Willebrand factor-associated heavy menstrual bleeding

被引:16
|
作者
Srivaths, Lakshmi [1 ]
Minard, Charles G. [1 ]
O'Brien, Sarah H. [2 ]
Wheeler, Allison P. [3 ]
Mullins, Eric [4 ,5 ]
Sharma, Mukta [6 ]
Sidonio, Robert [7 ]
Jain, Shilpa [8 ]
Zia, Ayesha [9 ]
Ragni, Margaret, V [10 ]
Kulkarni, Roshni [11 ]
Dietrich, Jennifer E. [1 ,12 ]
Kouides, Peter A. [13 ]
机构
[1] Baylor Coll Med, Dept Pediat, Houston, TX 77030 USA
[2] Nationwide Childrens Hosp, Div Pediat Hematol Oncol, Columbus, OH USA
[3] Vanderbilt Univ Sch Med, Dept Pediat, Vanderbilt, TN USA
[4] Univ Cincinnati, Coll Med, Div Hematol, Cincinnati, OH USA
[5] Cincinnati Childrens Hosp, Cincinnati, OH USA
[6] Childrens Mercy Hosp, Dept Pediat, Kansas City, MO USA
[7] Emory Univ, Aflac Canc & Blood Disorders Ctr, Atlanta, GA 30322 USA
[8] Univ Buffalo, Dept Pediat, Buffalo, NY USA
[9] Univ Texas Southwestern, Dept Pediat, Dallas, TX USA
[10] Univ Pittsburgh, Div Hematol Oncol, Pittsburgh, PA USA
[11] Michigan State Univ, Dept Pediat & Human Dev, E Lansing, MI 48824 USA
[12] Baylor Coll Med, Dept Obstet & Gynecol, Houston, TX 77030 USA
[13] Univ Rochester, Dept Med, Rochester, NY USA
关键词
IRON-DEFICIENCY; PHENOTYPE; CHILDREN; FEMALES; VWF; ADULT; WOMEN;
D O I
10.1182/bloodadvances.2020002081
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Low von Willebrand factor (VWF) in adults is associated with significant bleeding, most notably heavy menstrual bleeding (HMB) and postpartum hemorrhage, although this has not been characterized in adolescents. The objectives of this analysis of a multicenter single arm observational cohort study in adolescents with low VWF-associated HMB were to describe the bleeding phenotype, HMB severity, and related complications. Eligibility criteria included postmenarchal females <21 years of age with HMB (Pictorial Blood Assessment Chart [PBACI score >100) and low VWF (2 values of VWF activity >= 30 and <= 50 IU/dL). Patients diagnosed with other bleeding disorders were ineligible. Clinical phenotype data, including PBAC and Bleeding Assessment Tool (BAT) scores, laboratory data, and HMB management/outcome details, were extracted. Patient demographics and clinical characteristics were summarized as medians with minimum/maximum values or frequencies with percentages. Groups were compared using a Wilcoxon rank-sum test or Fisher's exact test. A total of 113 patients met inclusion criteria, and 2 were excluded. Ninety four percent had a significant bleeding phenotype (BAT score >2), with predominantly mucocutaneous bleeding (32%-44%), postprocedural/surgical bleeding (15%), and severe HMB (BAT HMB domain score =2; 90%). Bleeding complications included iron deficiency (60%), anemia (21%), transfusion (12%), and hospitalization (10%). Desmopressin challenge response in subjects tested was good and sustained. Several (48%) required combined therapy for HMB (hormonal/hemostatic), and one third did not show improvement despite therapy. Our results suggest that adolescent females with low VWF have a significant bleeding phenotype and resultant complications warranting a focus on prompt diagnosis, appropriate therapy, and prevention of complications.
引用
收藏
页码:3209 / 3216
页数:8
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