I82.22

Clinical Causes: Deep vein thrombosis (DVT) in the lower limbs that dislodges and travels to the IVC Conditions that promote blood clot formation, such as prolonged immobilization, recent surgery, or trauma Inherited clotting disorders (e.g., factor V Leiden mutation, protein C or S deficiency) Cancer, which can increase blood clot risks Inflammatory or infectious diseases affecting blood vessels Pregnancy and postpartum period due to hormonal changes and increased blood volume Use of hormone replacement therapy or hormonal contraceptives Obesity and sedentary lifestyles

Key Symptoms: Swelling and pain in the legs or lower extremities Localized redness and warmth over affected veins Sudden shortness of breath (in case of embolism traveling to lungs) Chest pain or discomfort Dizziness or fainting Visible bulging veins in the abdomen or groin Persistence of lower back or abdominal pain

Diagnosis Path: Doppler ultrasound to detect blood clots in the lower extremities Computed tomography (CT) scan with contrast to visualize the IVC and identify blockages Magnetic resonance imaging (MRI) for detailed vessel imaging Venography, an imaging technique involving dye injection to highlight veins Blood tests to identify clotting abnormalities and inflammation markers

Treatment Protocols: Anticoagulant medications (blood thinners) such as heparin and warfarin to prevent clot extension Thrombolytic therapy in severe cases, using medications to dissolve existing clots Placement of filters (inferior vena cava filters) to trap emboli before they reach vital organs Surgical intervention or thrombectomy in critical situations Treating underlying conditions that contribute to clot formation, like managing cancer or hormonal therapy adjustments Lifestyle modifications such as increasing physical activity, weight management, and smoking cessation