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 catheters may be placed in peripheral. veins for long-term use and improved security of. device placement. In cats, the medial saphenous. vein is frequently used for this purpose. The lat-. eral saphenous vein is typically used in dogs and. may also be used in cats.