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75-year-old woman • right-side rib pain • radiating shoulder pain • history of hypertension & hypercholesterolemia • Dx?

The Journal of Family Practice. 2021 October;70(8):405-407 | doi: 10.12788/jfp.0280
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► Right-side rib pain
► Radiating shoulder pain
► History of hypertension & hypercholesterolemia

Length of treatment depends on gender and etiology

The cornerstone treatment for stable patients with VTE is therapeutic anticoagulation. The new oral anticoagulants, which directly inhibit factor Xa or thrombin, have become increasingly popular for management of VTE, in part because they don’t require INR testing and monitoring.2

The duration of anticoagulation, particularly in unprovoked PE, is debatable. As noted earlier, patients with an unprovoked PE are at higher risk of recurrence than those with a reversible cause, so the question becomes whether these patients should have indefinite anticoagulation.2,3 Studies examining risk stratification of patients with a first, unprovoked VTE have found that men have the highest risk of recurrence, followed by women who were not taking estrogen during the index VTE, and lastly women who were taking estrogen therapy during the index VTE and subsequently discontinued it.2,3,10

Thus, it is reasonable to give women the option to discontinue anticoagulation in the setting of a negative d-dimer follow-up.3 The 2016 CHEST guidelines recommend extended anticoagulation for a first-time, unprovoked VTE, but acknowledge this recommendation is strongest for men and that women with negative d-dimer assays may consider discontinuation.10

Our patient was directed to the emergency department for further monitoring following CT confirmation. She was discharged home after being deemed stable and prescribed apixaban 10 mg/d. A venous duplex ultrasound performed 12 days later for knee pain revealed no venous thrombosis. A CT of the abdomen performed 3 months later for other reasons revealed a normal gallbladder with no visible stones.

Apixaban was continued for 3 months and discontinued after discussion of risks and benefits of therapy cessation in the setting of a normal d-dimer and the 2016 CHEST guidelines for anticoagulation in VTE.10

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