A minimally invasive technique of chest drain insertion using the Mini Step bladeless trocar is described. Thirty-one chest drain insertions were performed with this technique between January 2007 and December 2009. It is a safe, efficient, fast, and easily acquired means of chest drain insertion in children, which has a high success rate and minimal morbidity. Overwhelmingly positive responses...

OBJECTIVE To determine whether bacterial colonization of drains can be reduced by local antiseptic interventions. BACKGROUND Drains are a potential source of bacterial entry into surgical wounds and may contribute to surgical site infection after breast surgery. METHODS After institutional review board approval, patients undergoing total mastectomy and/or axillary lymph node dissection were...

Graphene field-effect transistors exhibit negligible transconductance under two scenarios: for any gate-to-source voltage when the drain-to-source is set to zero, and an arbitrary provided that equals Dirac voltage. Hence, extracting channel parasitic series resistances from S-parameters these conditions enables analyzing their dependence on gate drain biases. This fundamental assess portion of...

Figure 2 Clinical photograph demonstrating the long distal drain still protruding after closure of the arthrotomy (Fig 1). Close the arthrotomy from proximal to distal, leaving the distal end protruding (Fig 2). As you reach the end of the wound where the drain exits the arthrotomy, withdraw the drain to length. As the drain withdraws easily, you can be sure that it has not been sutured into th...

The authors have used scanning gate microscopy combined with numerical simulations to analyze local carrier and current modulation effects in InAs semiconductor nanowires grown by metal-organic chemical vapor deposition. Measurements of current flow in the nanowire as a function of probe tip position, at both high and low drain bias, reveal that carrier and current modulation is strongest when ...

chest tube (ct) or tube thoracostomy placement is often indicated following traumatic injuries. premature movement of the chest tube leads to increased hospital complications and costs for patients. placement of a chest tube is indicated in drainage of blood, bile, pus, drain air, and other fluids. although there is a general agreement for the placement of a chest tube, there is little consensu...