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Profil korisnika/ce JonathanRyderMD
Jonathan Ryder, MD
Jonathan Ryder, MD
Jonathan Ryder, MD
@JonathanRyderMD

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Jonathan Ryder, MD

@JonathanRyderMD

@IUIntMed PGY-3 IM Resident|Future @UNMC_ID fellow|Interests: ID, MedEd, history of science/medicine, books, NFL, and podcasts| Tweets are my own.

Indianapolis, IN
Vrijeme pridruživanja: rujan 2019.

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    Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
    • Prijavi Tweet

    1/ Let's differentiate pyogenic from amebic liver abscess in a #Tweetorial today. We will examine DDx, risk factors, microbiology, clinical features, diagnostics, and treatment. This came from my most recent morning report. #IDTwitter #LiverTwitter #MedEdpic.twitter.com/IOZk3j1wht

    15:25 - 1. velj 2020.
    • 150 proslijeđenih tweetova
    • 411 oznaka „sviđa mi se”
    • renzo pérez عثمان sasasas Gerome Escota Dr.Abdullah AL Helal Venkata Sunkesula Mohammed Mar'ae Asiri cskappak 医学 tweet ~limitless~
    21 reply 150 proslijeđenih tweetova 411 korisnika označava da im se sviđa
      1. Novi razgovor
      2. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        2/ Differential diagnosis for liver abscess: Infectious etiologies predominate. Most are pyogenic (bacterial). Amebic (Entamoeba histolytica) and hydatid cyst (Echinococcus) important. Differentiate these from HCC or liver mets. @CPSolvers what am I missing?!pic.twitter.com/bJ1i1ZZngt

        1 reply 6 proslijeđenih tweetova 33 korisnika označavaju da im se sviđa
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      3. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        3/ Pathogenesis of pyogenic liver abscess (PLA): - Biliary obstruction (GB, cancer) most commonly - Surgical complication, trauma - Portal vein pyemia from intra-abdominal infection (e.g. appendicitis) - Hematogenous seeding (endocarditis) - Cancer tx complication (RFA, TACE)pic.twitter.com/TaWuwn2pC4

        9 proslijeđenih tweetova 24 korisnika označavaju da im se sviđa
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      4. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        4/ Risk factors for PLA: - DM: due to impaired PMN chemotaxis/phagocytosis - Cirrhosis - Immunocompromise - Associated with underlying colorectal cancer, especially in Asia with Kleb pneumo infectionspic.twitter.com/WnXxu6uNNT

        1 reply 6 proslijeđenih tweetova 14 korisnika označava da im se sviđa
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      5. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        5/ Microbiology of PLA: - Historically, polymicrobial (GNRs + anaerobes) - Shifting epi in the US, with strep milleri group (anginosus, constellatus, intermedius) becoming most common (@PaulSaxMD pearl) - Staph aureus-->think endocarditis - 50% bacteremic https://insights.ovid.com/pubmed?pmid=19888200 …pic.twitter.com/85YCgvIXZZ

        1 reply 4 proslijeđena tweeta 18 korisnika označava da im se sviđa
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      6. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        6/ Keep in mind community-acquired hypervirulent Klebsiella pneumoniae in patients from Taiwan/SE Asia - RF: DM - Metastatic infections in 10-16%: meningitis, endophtathalmitis, septic emboli - Virulence factors: K1/K2 hypercapsule, unique siderophores https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6167513/ …pic.twitter.com/F6HheIloHH

        1 reply 5 proslijeđenih tweetova 16 korisnika označava da im se sviđa
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      7. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        7/ Clinical features/Diagnosis of PLA: - Fever/Chills, RUQ Pain, N/V - Leukocytosis, elevated CRP, elevated AST/ALT/bilirubin/ALP - CT & US both useful for diagnosis - Get blood cultures! - Cultures from abscess useful for etiologypic.twitter.com/6fin515N99

        1 reply 2 proslijeđena tweeta 15 korisnika označava da im se sviđa
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      8. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        8/ Treatment of PLA: - Source control essential: percutaneous catheter>surgery - Empiric antibiotics: ceftriaxone + metronidazole usually (@UpToDate) - Consider vanc if MRSA concerns (endocarditis) - Duration: 4-6 weeks IV-->PO, but evidence limitedpic.twitter.com/TMuPLzAkRS

        1 reply 4 proslijeđena tweeta 15 korisnika označava da im se sviđa
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      9. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        9/ We will now focus on amebic liver abscess (ALA) from the protozoan Entamoeba histolytica! - E. hystolytica is usually asymptomatic (90%) - Most commonly causes dysentery, but also known for liver abscess, brain/heart/lung involvement Image: https://www.nejm.org/doi/full/10.1056/NEJMicm1800360 …pic.twitter.com/PPkLddAvtu

        1 reply 3 proslijeđena tweeta 12 korisnika označava da im se sviđa
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      10. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        10/ There are 4 known species of Entamoeba: - E. histolytica - E. dispar (non-pathogenic) - E. moshkovskii (?pathogen) - E. bangladeshi (?pathogen) We will be focusing on E. histolytica, but E. dispar is an important confounder in epidemiology & diagnostics (see below)

        1 reply 1 proslijeđeni tweet 8 korisnika označava da im se sviđa
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      11. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        11/ E. histolytica exists as 2 forms: Cysts (figure 1): survive for weeks in environment due to thick walls, transmit the disease via feces Trophozooites (figure 2): die in environment & stomach acid, invade colonic walls (amebic dysentery) into blood stream (liver, brain, etc)pic.twitter.com/neehpVI08Y

        1 reply 3 proslijeđena tweeta 12 korisnika označava da im se sviđa
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      12. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        12/ E. histolytica lifecycle: - Excreted into feces via cysts which transmit disease via fecal-oral route - Trophozooites multiply and make cysts in the colon Images: @CDCgovpic.twitter.com/ivxKjTWO4J

        1 reply 2 proslijeđena tweeta 8 korisnika označava da im se sviđa
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      13. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        13/ Risk factors for ALA: - Male (10:1, likely due to EtOH-induced liver damage, as colonic amebiasis 1:1) - MSM, Institutionalization, Immunosuppression - Endemic regions: Mexica, Central/South America, India, Africa - 35% in short term travelers (<6w) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3472914/ …pic.twitter.com/N5jBTXzx9g

        3 proslijeđena tweeta 11 korisnika označava da im se sviđa
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      14. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        14/ Clinical presentation of ALA: - Incubation period of weeks to years - Fever, RUQ pain for ~2 weeks - Referred pain to R shoulder/chest, epigastric, pleuritic - Diarrhea in ~1/3rd - Can rupture into peritoneum, pleura, or pericardium uncommonlypic.twitter.com/owtcvu2RPf

        1 reply 1 proslijeđeni tweet 11 korisnika označava da im se sviđa
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      15. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        15/ Lab/Imaging findings of ALA: - 75% leukocytosis (WITHOUT eosinophilia) - 2/3rds elevated AST/ALT, 80% elevated ALP - Anemia, hyperbilirubinemia, and hypoalbuminemia seen - R hemidiaphragm elevation on CXR in 1/3rd - CT & US usefulpic.twitter.com/oEKNnPtk9o

        1 reply 2 proslijeđena tweeta 13 korisnika označava da im se sviđa
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      16. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        16/ Diagnostics for ALA are tricky! Stool/aspirate microscopy - Insensitive (only 24% in one series) - Non-specific: cannot distinguish between pathogenic E. histolytica & non-pathogenic E. dispar (morphologically the same!) - Need specialized lab personnel & >3 stool samplespic.twitter.com/0lKfhcIdLR

        1 reply 1 proslijeđeni tweet 7 korisnika označava da im se sviđa
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      17. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        17/ Serum antibody serology is great for rule out - Detectable after 7 days of infection in 85-95% of patients (sensitive), but negative early in infection - Persists for years, so 10-35% of uninfected have +Ab in endemic areas, cannot distinguish old from new infection

        1 reply 1 proslijeđeni tweet 9 korisnika označava da im se sviđa
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      18. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        18/ Stool antigen testing is very useful - 87% sensitive, >90% specific - Detects Gal/GalNAc lectin, specific to E. histolytica PCR tests being developed Summary: serum Ab & stool Ag tests are the best methods for diagnosis. Don't order stool microscopy!

        1 reply 2 proslijeđena tweeta 9 korisnika označava da im se sviđa
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      19. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        19/ Treatment for ALA differs from PLA: - Drainage is not necessary, unless uncertainty of diagnosis, lack of clinical improvement, or high risk for rupture (>10cm) - If drained, cultures will not help for ALA, but the color might! Remember anchovy paste!pic.twitter.com/EmiP9czkeU

        1 reply 3 proslijeđena tweeta 8 korisnika označava da im se sviđa
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      20. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        20/ Antibiotics for ALA: - Metronidazole x 7-10 days for abscess - Then need intraluminal treatment (for cysts!) with paramomycin or iodoquinolpic.twitter.com/XtepbuazCK

        1 reply 1 proslijeđeni tweet 13 korisnika označava da im se sviđa
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      21. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        21/ Some cool history on this topic! @AdamRodmanMD will appreciate the article about Fyodor Lesh! Science was different in the 19th century https://www.ncbi.nlm.nih.gov/pubmed/1098489  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1048259/ …pic.twitter.com/SwarvnD1ga

        1 reply 0 proslijeđenih tweetova 11 korisnika označava da im se sviđa
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      22. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        22/ That's it for this #Tweetorial. It was a long one! Appreciate feedback as always and hope you learned as much as I did on this one! Appreciate the help on my AM report presentation from @mmcclean1 @Strongylady @MitchGoldmanMDpic.twitter.com/YHFDafoRc8

        5 replies 2 proslijeđena tweeta 17 korisnika označava da im se sviđa
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      23. Jonathan Ryder, MD‏ @JonathanRyderMD 1. velj
        • Prijavi Tweet

        Tagging a few who may be interested in this subject: @IUIDfellowship @IUIntMed @ebtapper @liverprof @tony_breu @thecurbsiders @UNMC_ID @DoctorJinnette @MedEdPGH @eColeID @medrants

        1 reply 0 proslijeđenih tweetova 11 korisnika označava da im se sviđa
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      24. Jonathan Ryder, MD‏ @JonathanRyderMD 2. velj
        • Prijavi Tweet

        Jonathan Ryder, MD je proslijedio/a tweet korisnika/ceWuidQ: Washington University ID Questions

        A related post from @WuidQ in November 2019 regarding E. histolyticahttps://twitter.com/WuidQ/status/1199406534855401472?s=20 …

        Jonathan Ryder, MD je dodan/na,

        WuidQ: Washington University ID Questions @WuidQ
        45/M visiting US from India, p/w 10 days of fevers chills and RUQ abd pain. No diarrhea. WBC 15K , Eos 1%. ALP 240. Bili n/l. CT: single 4 x 5 cm liver abscess . A percutaneous aspiration was done. Which of the ff makes amebic liver abscess less likely in this patient?
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        0 proslijeđenih tweetova 2 korisnika označavaju da im se sviđa
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      25. Jonathan Ryder, MD‏ @JonathanRyderMD 2. velj
        • Prijavi Tweet

        Have found a good source for DDx as well as a radiography-based schema! https://www.ncbi.nlm.nih.gov/pubmed/27232504 pic.twitter.com/ULYWXmFi9A

        4 proslijeđena tweeta 19 korisnika označava da im se sviđa
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      26. Jonathan Ryder, MD‏ @JonathanRyderMD 2. velj
        • Prijavi Tweet

        Jonathan Ryder, MD je proslijedio/a tweet korisnika/ceTalha Qureshy

        Awesome find from @talhaqureshy that is a summary of my entire #Tweetorial in one chart Looks like it comes from this textbook: https://link.springer.com/chapter/10.1007/978-3-319-98497-1_79 …https://twitter.com/talhaqureshy/status/1223846319619526656?s=20 …

        Jonathan Ryder, MD je dodan/na,

        Talha Qureshy @talhaqureshy
        Odgovor korisniku/ci @JonathanRyderMD
        pic.twitter.com/OLstii3jQX
        1 reply 2 proslijeđena tweeta 5 korisnika označava da im se sviđa
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      27. Jonathan Ryder, MD‏ @JonathanRyderMD 22 hprije 22 sata
        • Prijavi Tweet

        CORRECTION: For tweet #14, this should be the chart for associated clinical symptoms of ALApic.twitter.com/ueRDjzHyJn

        0 replies 0 proslijeđenih tweetova 2 korisnika označavaju da im se sviđa
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