As GJ says, the PGHM (EC145) sometimes use a lot of cable out. At altitude extremes of aircraft and pilot performance, they will approach rescuer out on a long hoist cable and land them like long line to minimise time at altitude. The Dent du Geant rescue 2011 is a fine example. I have it on video. Awesome.
Certainly a few years ago NLA in Norway had a procedure to long-line their paramedics into incident scenes. Doctor at the door watching the paramedic and directing the pilot. I think they were using it only for paramedic insertion to get medical help to patients asap where access problems meant use of SAR helicopter or MRT access for patient recovery. "Ten times as much practice as we use it for real."
Not sure if the Poles use longline since mainly they have hoists but they do have a procedure for mountain rescuers abseiling from air ambulances (EC135). Drop of the paramedic and some kit and fill the cab with MR guys who ab into the incident location and access the casualty while the helo can return to get the paramedic and equipment.