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May-Hegglin Anomaly Treatment & Management

  • Author: Vikramjit S Kanwar, MBBS, MBA, MRCP(UK), FAAP; Chief Editor: Hassan M Yaish, MD  more...
 
Updated: May 03, 2016
 

Approach Considerations

The literature is conflicting, but most patients with May-Hegglin anomaly (MHA) do not appear to have clinically significant bleeding problems, and specific treatment is not required. Corticosteroids and splenectomy are ineffective. In rare patients with severe bleeding, platelet transfusion may be required.

Patients with MHA who undergo normal vaginal or cesarean delivery do not appear to have a significantly increased risk of bleeding.[23, 24]

For patients with MHA scheduled for surgery, a careful personal and family history of bleeding tendency should be obtained and a manual platelet count performed to determine the actual risk for bleeding. Intravenous desmopressin acetate (DDAVP) may be valuable.[19, 25] A patient with MHA who successfully underwent craniotomy after DDAVP infusion alone has been described.[19] Routine prophylactic platelet transfusions are not usually indicated, though it is prudent to ensure that platelets are available in case unexpected bleeding occurs.

Depending on the degree of thrombocytopenia and family history, individuals may be at an increased risk for bleeding, and refraining from participation in contact or collision sports may be prudent.

A hematologist should be consulted to assist in the management of patients who are undergoing surgery or vaginal delivery and patients who have experienced severe trauma.

 
 
Contributor Information and Disclosures
Author

Vikramjit S Kanwar, MBBS, MBA, MRCP(UK), FAAP Professor of Pediatrics, Albany Medical College; Chief, Division of Pediatric Hematology-Oncology, John and Anna Landis Endowed Chair for Pediatric Hematology-Oncology, Medical Director, Melodies Center for Childhood Cancer and Blood Disorders, Albany Medical Center

Vikramjit S Kanwar, MBBS, MBA, MRCP(UK), FAAP is a member of the following medical societies: American Academy of Pediatrics, American Society of Hematology, American Society of Pediatric Hematology/Oncology, Children's Oncology Group, International Society of Pediatric Oncology

Disclosure: Nothing to disclose.

Chief Editor

Hassan M Yaish, MD Medical Director, Intermountain Hemophilia and Thrombophilia Treatment Center; Professor of Pediatrics, University of Utah School of Medicine; Director of Hematology, Pediatric Hematologist/Oncologist, Department of Pediatrics, Primary Children's Medical Center

Hassan M Yaish, MD is a member of the following medical societies: American Academy of Pediatrics, New York Academy of Sciences, American Medical Association, American Society of Hematology, American Society of Pediatric Hematology/Oncology, Michigan State Medical Society

Disclosure: Nothing to disclose.

Acknowledgements

Gary D Crouch, MD Associate Professor, Program Director of Pediatric Hematology-Oncology Fellowship, Department of Pediatrics, Uniformed Services University of the Health Sciences

Gary D Crouch, MD is a member of the following medical societies: American Academy of Pediatrics and American Society of Hematology

Disclosure: Nothing to disclose.

Frank E Shafer, MD Associate Professor, Department of Pediatrics, Section of Hematology-Oncology, St Christopher's Hospital for Children, MCP Hahnemann University School of Medicine

Disclosure: Nothing to disclose.

Mary L Windle, PharmD Adjunct Associate Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Nothing to disclose.

References
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Blood smear (original magnification ×2000) in patient with May-Hegglin anomaly (MHA) demonstrates characteristic giant platelet with poorly defined granulation. Normal-sized platelet is also present. Trilobed neutrophil contains large, well-defined, basophilic, peripherally placed cytoplasmic inclusion body (resembling Döhle body). Image used with permission from Little, Brown.
Table. Clinical Features of MYH9 -Related Thrombocytopenias
Condition Macrothrombocytopenia Granulocyte inclusions Nephritis and Deafness Cataracts
MHA Yes Linear Döhlelike No No
Epstein syndrome Yes Absent or faint Yes No
Fechtner syndrome Yes Spherical granules Yes Yes
Sebastian syndrome Yes Spherical granules No No
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