Chinese Med J Peking
-
Chinese Med J Peking · Apr 2005
Modification of the right subclavian vein catheterization and its anatomic basis and techniques.
Several million subclavian-vein catheters are placed in patients each year to enable caregivers to administer chemotherapy, total parenteral nutrition, or long-term antibiotics or to manage preoperative fluids. Subclavian venipuncture requires the position of a deep vein to be identified with only surface landmarks. But the traditional right subclavian vein (RSV) catheterization (primitive procedures) is not the answer for all patients. The precise location of the vein is not known, and it is important to select the most appropriate method to achieve central venous access safely in any given patient. To modify the primitive procedures of the RSV catheterization for greater success and reduce the complications, anatomic studies and ultrasonography were conducted and clinical applications were validated. ⋯ The modified RSV catheterization is characterized with a higher success rate and less complications, and the insertion procedure differs from the bodily form of fatness or leptosome.
-
Chinese Med J Peking · Mar 2005
Severe acute respiratory syndrome coronavirus persistence in Vero cells.
Several coronaviruses establish persistent infections in vitro and in vivo, however it is unknown whether persistence is a feature of the severe acute respiratory syndrome coronavirus (SARS-CoV) life cycle. This study was conducted to investigate viral persistence. ⋯ SARS-CoV can establish a persistent infection in vitro. The mechanism for viral persistence is consistent with the formation of a carrier culture whereby a limited number of cells are infected with each round of virus replication and release. Persistence is associated with selected mutations in the SARS-CoV genome. This model may provide insight into SARS-related lung pathology and mechanisms by which humans and animals can serve as reservoirs for infection.