Will be jumping around this afternoon -- but starting off with "Hormonal Contraceptive Use and Association with Thromboembolism in Women with Sickle Cell Disease" with Dr. Natasha Bala. I feel like this is gonna be a good one! Tune in below. #ASH22 1/n
Combined OCPs is a category 2 -- meaning the benefit outweighs the risks. Their hypothesis was that risk of thrombosis was higher with combined OCPs versus progesterone only. #ASH22 2/n
They excluded patients without Rx 6 months prior to include new hormonal agent patients only (and excluded ones that had a hx of VTE prior). Their definitions here. #ASH22 3/n
Here's what they found #SCD women were using. They found a total of 1.8% of VTE events in their patients = 21 events per 1000 person years (versus gen population of 0.5-1!!!) #ASH22 4/n
Patch was significantly HIGHER risk of VTE (versus oral combined pill). Know that this study was based on administrative claims so lots of caveats to this data. #ASH22 5/n
Q: mostly PE>DVT? how were these dx'd? Since it's administrative claims data so we can't tell what their sx. (It's based on ICD codes) #ASH22 6/6
Q: How does transdermal patches vs OCPs in non-SCD patients? A: in the literature, there is a 2x risk of thrombosis (about 60% higher estrogen exposure than pill users) due to its continuous delivery into the system. #ASH22
Q: What about low dose (<30 mcg) vs standard (>30 mcg) vs high dose estrogen? Also new vs older progestin? A: We are looking at that and will separate these out at publication. Looking forward to it. #ASH22

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More from @DrTiffanyL

Dec 13
Two oral abstracts on the #STELLAR study (Sickle Cell Transplant Evaluation of Long-term and Late Effects Registry) presented by Dr. Sobenna George (hi!) and Dr. Lillian Meacham #ASH22 1/n
What's the problem? You can get DOR = diminished ovarian reserve or POI = primary ovarian insufficiency (early menopause). This is SUCH a good explanation!! #ASH22 2/n ImageImage
Small numbers but such great data, 30 females and 18 males, about 4-6 years post therapy (myeloablative transplants (mostly matched sib) and one each with gene tx) #ASH22 3/n
Read 7 tweets
Dec 13
How many patients are on disease modifying treatments for #SCD - data from 2014-2021 presented by Dr. Terri Newman. @ash22 1/n
We're talking about #Hydroxyurea and in 2017, expanded use of #HU as well as L-glutamine and then in 2019 #voxelotor and #crizanlizumab. #ASH22 2/n
They looked at 5022 patients with Rx of DMTs. Those on DMTs were surprisingly mostly in the 18-45 group (the box is wrong on the screenshot) and mostly male and had more VOCs. #ASH22 3/n Image
Read 5 tweets
Dec 13
Management of pregnant women with #SCD in high income countries with Dr. Eugene Oteng-Ntim (with the cutest intro from Dr. Eugenia Asare). Writing down the #pearls here so I can share with my patients for their future and so I can advocate for them. #ASH22 1/n
As we know, more low/not detectable AMH levels in women with #SCD. Know that preimplantation diagnosis and successful transfer is possible with data to support that. And many want #NIPT secondary to fear of amnio or CVS, which can be done. (w/ @nonacus) #ASH22 2/n
What risks are we talking about in sickle cell disease and pregnancy? 1/4 of the patients in their cohort required transfusion during pregnancy and RR of preeclampsia is 2.43 and 3x risk of SGA, 4x risk of stillbirth. #ASH22 3/n Image
Read 5 tweets
Dec 13
Dr. Mark Fleming talking about pathology vs molecular testing in MDS. He first reminds us the difference of childhood MDS from adult MDS -- and these WHO guidelines, childhood MDS is only classified into these two subtypes. #ASH22 1/n Image
The issue is that the "dysplasia" definition has been defined by the cytogenetic abnormalities and genotypes of adult MDS so the criteria for blast %age, extent of dysplasia -- but does this apply?? #ASH22 2/n
MDS in pediatric patients is more normo or hypocellular than hypercellular. There is not ringed sideroblasts in persons <30 and he also reminds us that there are a number of baseline dysplasias in germline BMF pts that are mistaken for MDS! #ASH22 3/n
Read 7 tweets
Dec 13
#ASH22 Bone marrow failure syndromes: diagnostic principles in 2022. Starting with Sara Lewis, a genetic counselor in hematology. Follow this tweet for more. 1/n
Sara reminds us that she feels patients think more about their family history as they see her draw the pedigree. Time for me to start doing this! #phodocs #ASH22 #pearl 2/n
Here are the options for diagnostic workup - genetic tests can be done from somatic genes or germline! #ASH22 3/n ImageImageImage
Read 6 tweets
Dec 13
@bhwords Dr. Beverley Hunt presenting on #COVID19 and #thrombosis. She wants to chronologically review the battles we have fought! #ASH22 1/n
@bhwords This story (clinical presentation) -- a reminder of the patients from the front lines in the beginning and what some docs went through! #COVID19 #ASH22 2/n Image
@bhwords #COVID19 is the 'perfect suit for VTE' ... inflammation, sticky blood, vessel wall changes. The amazingly high levels of fibrinogen (14g/L! (normal is 2-4g/L)) D-dimers reported on a log scale because of the significant increase. #ASH22 3/n
Read 12 tweets

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