Reactivation of hepatitis B virus after rituximab-containing treatment in patients with CD20-positive B-cell lymphoma.

Background: Reactivation of hepatitis B virus (HBV) after rituximab-containing chemotherapy in patients with B-cell lymphoma has been recognized as a potentially serious complication in HBV immune patients.

Methods: To determine the HBV reactivation in patients treated with rituximab, a retrospective study of HBV-related markers was performed before and after rituximab-containing treatment in 261 consecutive patients with CD20-positive B-cell lymphoma.

Results: Of the 261 patients, 230 patients were tested for both hepatitis B surface antigen (HBsAg) and antibody to hepatitis B core antigen (anti-HBc) before treatment.

[Anesthetic management for robot assisted off-pump construction of composite graft using the da Vinci surgical system].

Robot-assisted minimally invasive surgery has become common in recent years. We used the da Vinci surgical system and managed anesthesia in 6 cases of bilateral internal mammary artery dissection and construction of a composite graft using the radial artery. To ensure vision inside the thoracic cavity, endoscopic robotic surgery employs the inflation of the thoracic cavity with carbon dioxide, producing a pneumothorax and turning the thoracic cavity into a positive pressure chamber.