22 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
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
Causes of Bleeding ... Sequestration Disordered ... - Acquired • Anticoagulation ... #Bleeding #Bruising ... Algorithm #Causes #Hematology
Venous Thromboembolism Treatment Algorithm
Branch points: 
Active bleeding?  Active malignancy? Provoked?

- Dr. Joseph Shatzel
@Clotmaster

#Management #VTE #DVT
Thromboembolism Treatment ... points: Active bleeding ... Thromboembolism #Treatment ... #Hematology #Anticoagulation
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
Bleeding risk calculators - HAS-BLED (atrial fibrillation) and IMPROVE (VTE prophylaxis for inpatients)
Important notes:
 • No
validated for VTE treatment ... clinical benefit of anticoagulation ... of withholding anticoagulation ... #Calculators #Anticoagulation ... #Factors #Hematology
Patient risk stratification algorithm for the treatment of cancer-associated thrombosis.

Currently, edoxaban and rivaroxaban are the only
algorithm for the treatment ... anticoagulants (DOACs ... filtration rate; DOAC ... Cancer #Algorithm #Anticoagulation ... #Management #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
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 ... #pharmacology #treatment ... decisionaid #cardiology #hematology
(DOAC interactions) Cancer-treatment specific inducers (↑) and inhibitors (↓)
of cytochrome p450 CYP3A4 and P-glycoprotein.

DOACs are substrates
(DOAC interactions ... ) Cancer-treatment ... thereby leading ... metabolization leading ... Chemotherapy #Oncology #Hematology
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