#Medtwitter friends: I've been having a blast on the BMT service with @c_j_gibson and planning next week's #bmtsm #leusm teaching theme:

📰 Why we do what we do in allogeneic transplantation for myeloid malignancies: Classic/Pivotal trials/papers.

Any you'd add/swap out?
1⃣ Chemo vs. Auto vs. Allo in AML

Cassileth PA et al. Chemotherapy compared with autologous or allogeneic bone marrow transplantation in the management of acute myeloid leukemia in first remission. NEJM 1998

nejm.org/doi/full/10.10…
2⃣ Donors - Related vs. Unrelated

Gupta V et al. Comparable survival after HLA-well-matched unrelated or matched sibling donor transplantation for acute myeloid leukemia in first remission with unfavorable cytogenetics at diagnosis. Blood. 2010

ashpublications.org/blood/article/…
3⃣ Stem Cell Source - PBSC vs. BM

Anasetti C et al. Peripheral-blood stem cells versus bone marrow from unrelated donors. NEJM. 2012

nejm.org/doi/full/10.10…
4⃣ Conditioning Intensity - RIC vs. MAC

Scott BL et al. Myeloablative versus reduced-intensity hematopoietic cell transplantation for acute myeloid leukemia and myelodysplastic syndromes. J Clin Oncol. 2017

pubmed.ncbi.nlm.nih.gov/28380315/
5⃣Battle of the MACs

Rambaldi A et al. BuCy vs FluBu as a preparative regimen for allogeneic haemopoietic stem-cell transplantation in patients with acute myeloid leukaemia: an open-label, multicentre, randomised, phase 3 trial. Lancet Oncol. 2015
pubmed.ncbi.nlm.nih.gov/26429297/
6⃣ Transplants in older patients?

Devine SM et al. Phase II study of allogeneic transplantation for older patients with AML in CR1 using a reduced-intensity conditioning regimen: results from CALGB 100103/BMT CTN 0502. JCO 2015

pubmed.ncbi.nlm.nih.gov/26527780/
7⃣ Part 1: Battle of GVHD ppx regimens

Nash RA et al. A phase III study comparing Tac/MTX and cyclosporine/MTX for prophylaxis of acute graft-versus- host disease after marrow transplantation from unrelated donors. Blood 2000

pubmed.ncbi.nlm.nih.gov/10979948/
7⃣ Part 2: Battle of GVHD ppx regimens

Cutler C et al. Tacrolimus/sirolimus vs tacrolimus/methotrexate as GVHD prophylaxis after matched, related donor allogeneic HCT. Blood. 2014

pubmed.ncbi.nlm.nih.gov/24982504/

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More from @haematognomist

Jun 17
🧵Our latest in @BloodJournal
@coleman_lindsley @c_j_gibson @DanaFarberNews

Older patients with AML undergoing HCT have high rates of relapse & non-relapse mortality

We investigated how outcomes relate to both baseline characteristics and molecular MRD

tinyurl.com/4bn76ham
2. @DrChrisHourigan and others have shown that AML pts with mutations at remission (molecular MRD) have more relapse➡️ inferior survival after HCT, especially if receiving reduced intensity conditioning.
tinyurl.com/23rrbjte Image
3. We wondered:

1⃣ Is prognostic impact of MRD the same for patients age ≥ 60 (underrepresented in RCTs)?

2⃣ Is mutation persistence related to features present at diagnosis?
Read 12 tweets
Mar 6, 2021
🩸Roundup of Myeloid Malignancies/BMT papers, starting w/ something I care a lot about:

1/ Poor Survival & Differential Impact of Genetic Features of Black Patients w/ #AML #leusm

Bhatnagar et al, Cancer Discovery
pubmed.ncbi.nlm.nih.gov/33277314/

We got work to do ya'll 😰 ✊🏾
2/ pubmed.ncbi.nlm.nih.gov/33664234/

Salvage use of venetoclax-based therapy for relapsed AML post allogeneic hematopoietic cell transplantation

Joshi et. al, Blood Cancer Journal
3/
Post-Transplant Cyclophosphamide (PTCy) is Associated with Increased Cytomegalovirus Infection: A CIBMTR Analysis

Goldsmith et al, Blood
pubmed.ncbi.nlm.nih.gov/33657221/
Read 9 tweets
Jun 15, 2020
1/8 Day 1 of intern year orientation. The nerves & excitement are real

A tweetorial of tweetorials - resources that may be helpful for our first days on the job! We are all in this together 👊🏾

First up:
Calling consults like a pro: @VarunPhadke2
Read 8 tweets
May 18, 2020
1/n Inspired by RLR: @rabihmgeha & @DxRxEdu...
HLH - @haematognomist & @HannahRAbrams

Two rising interns interested in🩸Heme-Onc & 📚MedEd

Teaching pearls from @NEJM CPC published 6/6/13
Dx spoilers below! @MedTweetorials
2/n First a PR:

Middle age man w/ PMHx HBV infection p/w chronic fevers and progressive weakness, found to have painful asymmetric mixed motor & sensory distal multiple mononeuropathy and nerve biopsy showing active vasculitis diagnosed with...
3/n DDx for mixed motor & sensory multiple mononeuropathy is broad!
▪️Hereditary
▪️Diabetes
▪️Vasculitis
▪️Infections (leprosy, lyme, syphilis, CMV, HIV)
▪️Neoplastic infiltration: (most commonly lymphomatous)
▪️Sarcoid, amyloid

Pt had S4...infiltration of heart & nerves?
Read 9 tweets
May 8, 2020
@CPSolvers #VMR inspired me to fill gaps in knowledge re: sterile pyuria (adapted from @NEJM article cited in phenomenal thread 👇🏾)
@MedTweetorials

First: what is pyuria?
▪️≥ 10 WBC/mm3
▪️≥ 3 WBC/hpf
▪️pos gram's stain (unspun urine)
▪️Urinary dipstick pos for leuk esterase
"Sterile pyuria is the persistent finding of white cells in the urine in the absence of bacteria"

And it is super common!
"13.9% of women and 2.6% of men are affected"

🤯 The DDx is waaaaay broader than I suspected, so let's take it by category
1/ STI
▪️Gonorrhea, Chlamydia, Mycoplasma
▪️HSV-2, Herpes Zoster
▪️HPV
▪️"In one study, among 104 patients with untreated HIV infection, 13% had pyuria"

Other viruses that do *not* typically have pyuria: adenovirus, BK, CMV --> sometimes cause hemorrhagic cystitis
Read 8 tweets
Feb 18, 2020
1/ Welcome to the next installment of @NEJM #CPS summaries!

For full case: bit.ly/2SWTDiq
@MedTweetorials

40yo F w/ hx of treated immature teratoma & HBV infection p/w chronic, progressive diffuse pain and weight loss

Me when I get to share clinical pearls 👇🏾
2/ 🌟Initial DDx 🌟
#medstudenttwitter: I often find it tempting to jump straight into listing possible Dx.

Often have to remind myself to be systematic. For this patient:

Up next: how does the PMHx ("background") affect our analysis of this presentation ("foreground")
3/ 📚 History:
Teratoma: tx w/ 4 cycles of bleomycin, etoposide & cisplatin → TAH-BSO

HBV: tx w/ tenofovir

Immigrated from Vietnam 20 years ago

🧠Clinical reasoning: when evaluating "background" I ask myself 3 questions 👇🏾
Read 10 tweets

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