Hematology
Clinical discussions on blood disorders, coagulation, transfusion medicine, and hematologic malignancies.
Recent Discussions
Do you choose to include or omit growth factor support in the treatment of Hodgkins lymphoma?
I typically do not use "up front" growth factor support unless my patient is frail. If symptomatic neutropenia develops during therapy I will add growth factor support at that time. For the patient with asymptomatic neutropenia I will continue therapy and individualize the decision for the addition ...
Does stopping anagrelide affect fibrosis in patients with ET who develop post-ET myelofibrosis?
Anagrelide is a phosphodiesterase (PDE) III inhibitor, developed initially as a platelet antiaggregant, but was found to have platelet lowering activity at concentrations lower than its platelet antiaggregant activity. Thus, it was consequently marketed to reduce thrombocytosis in MPN patients. It i...
Would you recommend an allogenic stem cell transplant in an older patient > 50 with Ph negative acute lymphoblastic leukemia who is MRD negative after induction?
In general, I would not routinely recommend allogeneic hematopoietic cell transplantation (HCT) for Ph- acute lymphoblastic leukemia (ALL) that is in MRD-negative remission this early in their treatment. This sort of response demonstrates significant chemosensitivity. Therefore, I would favor contin...
Are you more permissive of perioperative interruption of anticoagulation for VTE depending on the location and relative chronicity of the thrombus?
Yes - in general, I try to balance the relative urgency/importance of the procedure or surgery v. the thrombotic risk to the patient of a period of time off of anticoagulation. Location and chronicity both can feed into determining thrombotic risk. An upper extremity DVT, in general, has a lower rec...
How would you manage symptomatic superficial vein thrombosis during pregnancy?
The best evidence for the treatment of SVT comes from the CALISTO trial, which endorsed a prophylactic dose of fondaparinux as the treatment of choice. However, the CALISTO trial excluded pregnant women. Because data on the use of fondaparinux in pregnancy remain limited, with some traces of fondapa...
When should you use caplacizumab in the treatment of acute TTP patients?
Whenever I encounter a patient with features of thrombotic microangiopathy and a normal coagulation panel (that rules out DIC), I consider the possibility they may have immune TTP.If my suspicion of immune TTP is high (e.g. history of autoimmune disease, possible relapse of immune TTP) and there is ...
How would you approach escalation of therapy in an adult patient with refractory Still’s disease and associated MAS/HLH (ferritin >100,000, transaminitis, DIC) despite high-dose steroids, high-dose anakinra, tocilizumab, and ruxolitinib?
Emapalumab is an appropriate escalation in the described circumstance. I have no experience, and there is little published data as of yet with MAS825, but I would position this as an option to pursue before using etoposide. While there may be an indication of confounding, etoposide use nonetheless h...
In a pregnant patient with PNH without aplastic anemia who has residual hemolysis while on ravulizumab and on prophylactic LMWH, what else can be done to reduce thrombotic risk and improve maternofetal outcomes?
Personally, I feel that C5 inhibitors are now close to obsolete in the management of PNH, since C3 and factor B inhibitors are more effective and inhibit both intravascular and extravascular hemolysis. Whether or not to use pegcetacoplan or iptacopan depends on the trimester, the seriousness of the ...
How do you manage anticoagulation for patients with DVT/PE who have brain metastases?
Not all brain metastases pose the same risk to patients. Rapid, numerous (even if tiny), new onset metastases from RCC or melanoma (especially BRAF mutant) can go from asymptomatic to life threatening hemorrhage within 1-2 weeks and I would strongly caution anti-coagulation in these patients. If the...
How would you approach anticoagulation for a newly recurrent VTE on progestin-only therapy?
Would you consider this recurrence event hormonally induced and discontinue transdermal progestin, or would you consider this an unprovoked event? I would likely consider this an unprovoked event, as the provoking factor of transdermal progesterone should be extremely weak, if at all. Would you c...