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 are useful devices, especially in patients receiving IV antibiotics, cancer chemotherapy treatments, or chronic pain medications. Some chemotherapy drugs can damage the tissue around the vein if the needle is not positioned correctly, especially in the small veins of the hand and lower arm.