Top Tweets for #PreTestProbability
Smart D-Dimer Use: A 3-Step Pathway to Better Diagnosis - @MassimoPetrina
https://t.co/GOFrT7VXj7
#AorticDissection #Ddimer #Health #Hemostasis #HemostasisToday #HighPTP #LowPTP #MediumPTP #Malignancy #Medicine #PreTestProbability #Thrombosis #MedEd #MedX
The actual “scans” offered include blood tests, photometry and a bunch of other investigational modalities. The question remains - but why? Your GP for much less can provide the necessary tests without causing extra stress for incidentalomas #pretestprobability
@Margazhi_ta In general, I don't think we do ACE anymore...neither sensitive nor specific, doesn't correlate with activity. Plus, there're #granulomas, the #PreTestProbability is such that a negative is irrelevant (it's not specific to sarcoid). Stains for sure (I literally just got them...)
In our cases, we did not even attempt to define the "normative" or correct individual probabilities. I made the #pulmonarynodule case using a calculator so #pretestprobability was 80%; sensitivity of transthoracicneedlebiopsy is ~90%. So the "normative answer is ~72% (blue dots)
MedTweetorial: #Tweetorial
Author: @rbganatra
Type: #MedEd
Specialty: #InternalMedicine #Radiology
Topics: #Pneumonia #DiagnosticReasoning #CXR #PreTestProbability #DiseasePrevalence
1/
You suspect pneumonia, but the CXR shows no opacities.
Q: When should you obtain a chest CT?
Pick your answer, then read on for a short explanation
(PTP = pretest probability)
There are three key concepts to understanding how accurate #RATs (or any diagnostic test) are: #sensitivity, #specificity and #pretestprobability.
👇🏽
This is superb. How science and common sense intersect. We really need comprehensive independent testing of RATS published asap. How accurate is your RAT? Three scenarios show it's about more than looking for lines https://t.co/DekI2mOaTK
@OnePagerICU A great summary. #fluidresponsiveness has taken on a life of it's own and I'm not sure the principle can be reliably applied to the benefit of patients. An #AUROC presumes a #pretestprobability - where does that come from? And is it alone sufficient to guide decisions?
I'm torn - on the OTOH, #YEARScriteria is "validated"; OTOH, its major clinical determinant, "#Pulmonaryembolism is most likely Dx" is completely ambiguous. That worries me. https://t.co/VNXI75NG2v #PERC #wellscriteria #Bayes #pretestprobability
MedTweetorial: #Tweetorial
Author: @dr_dmorgan
Type: #Publication
Specialty:
Topics: #DiagnosticAccuracy #PostTestProbability #PretestProbability
How good are doctors at diagnosis?
This is the most relevant paper I have written. Not perfect but addresses a huge issue I think could change medicine if acknowledged
…it has changed how I think about diagnosis
https://t.co/4ZtoD3F4rF
@JAMAInternalMed
@drjohnm
1/n
@JeremyGalen said to me “what’s past is prologue” (borrowed from #Shakespeare) and i realized this is #Bayesian reasoning in a nutshell @bob_galen #pretestprobability #MedEd
A practical useful webinar on chest imaging modalities for patients under evaluation for #COVID19 or COVID+ considering #pretestprobability #severity of disease. #CTchest #CXR #screening #triage #TestingForCovid19
NOW AVAILABLE: Our webinar is now available on YouTube. Watch The Role of Chest Imaging in Patient Management during the COVID-19 Pandemic: A Multinational Consensus Statement from the Fleischner Society: https://t.co/hZjmD1OWW7
@radiology_rsna @GeoffRubin #COVID19
@ThornyLin @baldgrrl There is a strong belief in physician circles & the statisticians behind #choosingwisely that there is an “over-ordering” of #diagnostictesting where the #pretestprobability is low. The belief is that over-ordering of tests is contributing to excess tax expenditures in health 1/2
#UofUPCCM fellow @seanmaddock captioned this pic “Scott going Rainman on the residents about a pt who got a #CTPA for a #Wellsscore probability of 1.3%” #testthreshold #bayestheorem #pretestprobability #medicaldecisionmaking #subsegmental #pulmonaryembolism #PE
@DissanaikeMD @medicalaxioms Important to discern difference between #cognitivebias in this scenario and #pretestprobability. An very unexpected result is inherently less likely to be accurate - important difference.
https://t.co/gQAlQBtn7F has amazing calculators to show how #LR adjust #PretestProbability ! How did I not know this before? Anyone using to teach #Bayes at the bedside? #EBM #meded https://t.co/914QIMrkMj
#YEARS algorithm to adjust #DDimer cut-off, based on #PreTestProbability assessment (looking at these signs/Sx)
👏🏻👏🏻👏🏻👏🏻
#EuSEM18
"To whom does #AgeAdjustedDDimer apply?"
Only low & medium #PreTestProbability!
📝? Age x10 = age-adjusted reference
#PE #EuSEM18 #DDimer
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