She added: “I tend to do a slow taper, one agent at a time, over the course of weeks. If you see a return of the inhibitor, you can ramp back up as needed. Continue to monitor for a year or more since patients are at high risk of recurrence.”
Acquired von Willebrand Syndrome: Fix the Associated Conditions
Acquired von Willebrand Syndrome is another rare bleeding disorder that may appear in veterans “since it’s associated with a lot of conditions that we see in the VA,” such as heart disorders, solid tumors, vascular malformations, and lymphoproliferative and myeloproliferative disorders, Samuelson Bannow said.
As with acquired hemophilia, the key is to focus on controlling the bleeding, she said. Then, she advised, focus on the associated condition: “Correct the underlying disorder: Treat the malignancy, address the [cardiac] shear stress, correct hypothyroidism, correct the cardiac defects.”
Inherited Hemophilia: Don’t Rule It Out
It’s possible to “sneak through” military medical screening with undiagnosed inherited bleeding disorders, Dr. Samuelson Bannow said. That’s because service members may have never had an injury that triggered abnormal bleeding, she said. “You can see how someone could slip into the military with a [low clotting factor level]. The classic presentation is going to be joint bleeds and abnormalities. These can be traumatic and spontaneous without any kind of an injury,” she said.
A general rule for these patients is to “replace what’s missing, and 100% is always normal.” The 100% refers to clotting factor level. She recommended reviewing 2013 guidelines for the treatment of the disorder.
Inherited von Willebrand Syndrome: Ask About Tonsillectomies
Inherited von Willebrand Syndrome is more common in women than it is in men. Bleeding “will primarily be mucocutaneous and trauma-induced,” said. Samuelson Bannow. She recommended asking patients if they have had a tonsillectomy and, if so, did they suffer from unusual bleeding. “If they did not have excessive bleeding, it’s a pretty good sign their hemostasis is good.”
She recommends a nasal spray drug called desmopressin (DDAVP, Stimate) for management. “It’s critical to know that you must test for efficacy first,” she said. “One of the most common mistakes that people make is that they may give patients DDAVP before surgery without knowing if it works or not. It doesn’t work for every patient.” She typically avoids this drug in patients aged > 65 years, or even > 60 years, due to increased thrombosis risk.
Recombinant von Willebrand factor (Vonvendi) is a “very helpful drug at patients at increased risk of thrombosis,” she said. However, she noted that the drug, at last check, is not on the VA’s formulary.
At the end of her presentation, Samuelson Bannow urged colleagues to contact specialized Hemophilia Treatment Centers (HTCs) near them: “ Follow this link , find an HTC [Hemophilia Treatment Center] near you, and create a partnership.”
Samuelson Bannow reported no relevant disclosures.