Hematology
Clinical discussions on blood disorders, coagulation, transfusion medicine, and hematologic malignancies.
Recent Discussions
Do you continue to check tryptase levels in your patients with idiopathic anaphylaxis despite normal levels >5 on repeated checks?
Baseline serum tryptase levels have been reported to be quite stable in the vast majority of patients, but can vary more in people with HaT or mastocytosis. With a bST <8 ng/ml, there is no obvious reason to continue to check it. However, even with normal bST, the Practice Parameters recommend furth...
How do you handle hypogammaglobulinemia detected in patients prior to maintenance rituximab infusion?
That is a good question. Adding on to Dr. @Dr. First Last's response, rituximab has been shown to cause hypogammaglobulinemia that can persist or worsen with ongoing therapy. In a study published by Barmettler and colleagues, 133 patients out of a cohort of 8633 patients had serum IgG levels checked...
How does pirtobrutinib compare to other available therapies for relapsed/refractory CLL after BTK inhibitor treatment, particularly in terms of efficacy and tolerability?
BRUIN trial enrolled patients with a median of 3 prior lines of treatment. The response rate with pirtobrutinib is close to 80%. However, overall PFS is about 1.5-2 years. So, most patients will eventually relapse after pirtobrutinib.It is possible that the use of pirtobrutinib in earlier lines of t...
Would involved site radiation therapy be recommended in a patient with POEMS syndrome whose myelopathy symptoms worsened after one cycle of CyBorD?
I would swiftly treat this patient with a common schedule, for instance, 5 x 4 Gy. I do not see any risk of concurrent rituximab.
For primary CNS lymphoma, when do you refer for whole brain radiation therapy (WBRT)?
When data are limited, consensus guidelines tend to rely on the personal clinical experiences of the guideline committee members. That may explain the NCCN guidelines. Recently, remarkable progress has been noted in the treatment of CNS lymphoma with drugs alone. Ibrutinib is particularly effective ...
How would you approach a referral for concern for hemochromatosis with ferritin elevation but otherwise normal iron studies?
Interesting questions, but lack of specifics about the degree of elevation and what constitutes normal iron studies makes it difficult to directly answer this question. However, there are well-recognized causes of elevated ferritin due to non-iron overloaded conditions, including increased apoferrit...
How would you approach the management of a patient with elevated iron saturation (60%) and ferritin (500s) with negative genetic testing for hemochromatosis?
I would approach this clinical scenario in the following manner: Always starting with good medical and family history first. Is there any history compatible with secondary hemochromatosis (i.e., history of blood or multiple iron transfusions)? Could the patient be tested for other non-282Y genetic ...
What is your treatment approach for MAG antibody associated polyneuropathy?
When patients have a classic Distal acquired demyelinating sensory (DADS) Neuropathy phenotype (by clinical +/- EDX criteria), typically an SPEP/IFE is checked first, and if an IgM monoclonal gammopathy is observed, then I typically check MAG antibodies at that point (if clinical and EDX features ar...
How would you manage HHT with ongoing epistaxis despite IV bevacizumab, with a history of superficial thrombosis?
This is a complex situation with a complex answer, and the patient would likely benefit from establishing care at one of the 30 HHT centers of excellence for a more thorough evaluation. If the patient mentioned has only had cautery, we would consider them seeing an ENT at an HHT center of excellence...
What are your top takeaways from ISTH 2025?
MAYARI trial - this trial was a single-arm trial for "non-severe" iTTP (excluding patients with significant cardiac or neurologic involvement) where PLEX was only used as a rescue therapy. Patients were started on caplacizumab and immunosuppression with steroids and rituximab. A large number of pa...