Minimally invasive and noninvasive diagnosis and therapy in critically illand injured patients

In this review, both the newer noninvasive (ie, those that pose no breach o f an epithelial barrier) and minimally invasive techniques relevant to the treatment of the critically ill or injured patient will be discussed. In so me cases, the development of the technology is so recent that published dat a describing their clinical applications may be scant. The emphasis herein is on newer technologies; therefore, the discussion of certain established noninvasive techniques, such as pulse oximetry, and minimally invasive ther apies, such as percutaneous abscess drainage, will be deferred.