1 1902 Willis Haviland Carrier invented the first air conditioner to control the temperature and humidity of a printing company, marking the first time effort taken to control the temperature of the surroundings. 2  This starts the history of air conditioning.
Following the introduction and widespread use of central venous catheters (CVCs) in adult patients, these devices are now frequently used also in the pediatric population. They have become an indispensable route for venous access, especially in pediatric intensive care units (PICUs).
Central venous catheters (CVCs) include both centrally inserted central catheters, which are usually inserted into the subclavian or jugular vein, and peripherally inserted central catheters (PICCs), which are typically inserted into a vein in the arm. CVCs are used for administration of drugs and fluids as well as for hemodialysis.