12 results
Coagulation Cascade and Anticoagulant Sites of Action

- Amy Chung, MD, MSc https://twitter.com/AmyChung

#AntiCoagulation #Cascade #Anticoagulants #Medications #Pharmacology
Coagulation Cascade ... twitter.com/AmyChung #AntiCoagulation ... #Pharmacology #Pathophysiology ... #Mechanisms #DOAC ... #Hematology
Stroke and bleeding risk stratification with the CHADS2-VASc and HAS-BLED schemas

#Diagnosis #Hematology #CHADS2 #CHADS2VASc #HASBLED #Comparison
Stroke and bleeding ... #Diagnosis #Hematology ... CHADS2 #CHADS2VASc #HASBLED ... Stroke #Bleed #Anticoagulation
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Sequestration Disordered ... - Acquired • Anticoagulation ... #Bleeding #Bruising ... Algorithm #Causes #Hematology
Bleeding risk calculators - HAS-BLED (atrial fibrillation) and IMPROVE (VTE prophylaxis for inpatients)
Important notes:
 • No
clinical benefit of anticoagulation ... of withholding anticoagulation ... risk #HASBLED ... #Calculators #Anticoagulation ... #Factors #Hematology
Causes of Prolonged PT (INR), Prolonged PTT
 • Prolonged PT (INR), Prolonged PTT
 • Prolonged PT
Normal PT (INR) - Bleeding ... PT (INR) - No Bleeding ... Algorithm #Causes #Hematology ... #coagulation #disorders
Summary of Coagulation Deficiencies
Inherited:
 • Hemophilia A - Deficiency of Factor VIII
 • Hemophilia B -
Summary of Coagulation ... LMWH, warfarin, DOACs ... Malignancy, Autoimmune disorders ... EricsMedicalLectures/ #Coagulation ... comparison #diagnosis #hematology
Managing warfarin INR

Warfarin dosage must be individualized according to the patient's response to the drug, and
Over-anticoagulation ... lead to severe bleeding ... hemorrhage, while under-coagulation ... decisionaid #cardiology #hematology
CHA2DS2VASc vs HAS-BLED scores for stroke risk and bleed risk on anticoagulation

C	Congestive Heart Failure	1

H	Hypertension	1

A2	Age >75	2

D	Diabetes Mellitus	1

S2	Stroke,
bleed risk on anticoagulation ... S Stroke 1 B Bleeding ... CHADS2 #CHADS2VASc #HASBLED ... Stroke #Bleed #Anticoagulation ... AFib #Diagnosis #Hematology
Treatment algorithm for VTE in Malignancy

(A) Suggested treatment algorithm for symptomatic and incidental DVT or PE
at high risk of bleeding ... DOAC, direct oral ... #DOAC #VTE #Malignancy ... Cancer #Algorithm #Anticoagulation ... #Management #Hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Intravascular Coagulation ... Findings: • Bleeding ... protein C and S Pathophysiology ... Findings: • Bleeding ... treatment #management #hematology