Seventeen years old man was diagnosed as left calf varicous vein and deep vein thrombosis on the same area. Three years later the patient visited for the exasperated swelling but had no sufficient warfarin therapy. At the age of 24, the patient had abrupt onset of left hemiplegia. Risk factor was monitored and patent foramen ovale and protein S deficiency were diagnosed. Simultaneously pulmonary embolism was detected and inferior vena cava filter was inserted. Nine months later from stroke, the patient had several times neurolysis on left lower extremity for spasticity. But after three days from last neurolysis we detected aggravation of lower extremity and left upper extremity swelling. He continued anticoagulation therapy. We reported a young patient with cerebral infarction by the mechanism of paradoxical embolism and upper extremity deep vein thrombosis in the lack of anticoagulation medication. (J Korean Acad Rehab Med 2005; 29: 527-530)

We experienced a patient who developed a cerebral air embolism after subclavian venous catheter removal. The patient underwent gastric antrectomy under impression of gastric cancer. After surgery, right subclavian venous catheter was removed while the patient was kept in supine position for 15 minutes. When he changed to sitting position, he became agitated and O₂ saturation was dropped to 72%. Immediately 100% O₂ was administered via air mask. Computed tomography of brain showed multiple focal air densities in the cerebral vessels. Three days after the event, he slowly regained consciousness with persistent left hemipareis. After rehabilitation, he was able to walk with quadcane and gained functional improvement. (J Korean Acad Rehab Med 2007; 31: 248-251)