Background:
Operating rooms worldwide are one of the major sources of plastic waste. In this work we have speculated, that it is possible to limit the amount of waste produced during laparoscopic and open hepatectomies significantly, based on the analysis of single use items and the possibilities of replacing them with multiple use items. For this purpose, all waste produced during , straightforward laparoscopic and open liver resections were analyzed, then divided into two groups: obligatory and non-obligatory waste.

Material and methods:
During one open and one laparoscopic hepatectomy procedure, we have analyzed all waste produced as the result of the procedures. The waste was divided into two groups: obligatory and non-obligatory waste.

Results:
All items used for each operation was separated from the waste bins after operation inside the OR. The members of the research team (M.W. O.P. and A.L.K) discussed each item and qualified it to one of the two categories: obligatory waste or non-obligatory waste. After assigning all waste items into one of the two groups, the non-obligatory waste was packed and weighted (Figure 1). The total weight and number of waste bins used for non-obligatory waste was recorded. Non-obligatory waste after laparoscopic hepatectomy weighted 3800 grams and was packed into two waste bins while after open hepatectomy the non-obligatory waste weighted 1400 grams and was packed into one waste bin.

Conclusions:
Even a small reduction in cost of one procedure can translate globally into big savings for the hospitals and obviously for less environmental impact of the hospital waste.