| biofilms on indwelling vascular catheters. | some bacteria have a natural tendency to adhere to available surfaces and to form biofilms. biofilms have been demonstrated on right heart flow-directed catheters, endocardial pacemaker leads, urinary catheters, and other medical devices. in this study, we examined arterial and central venous catheters that had been in place in icu patients between 1 and 14 days for the presence of bacterial biofilms by scanning electron microscopy, transmission electron microscopy, and a special scraping/sonica ... | 1992 | 1572192 |