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Introduction: Acute appendicitis (AA) is one of the most common reasons for emergency surgery within the abdominal cavity in Poland. Aim: To compare outcomes of surgical treatment of AA using both classical (OA) and laparoscopic methods (LA). Material and methods: Retrospective analysis of 299 patients (157 men and 142 women) operated on in 2008--2011 due to AA. The following comparisons between LA and OA were done: mean operative time, mean hospital stay after surgery, conversion rate, proportion of LA to OA in successive years. Results: Laparoscopic appendectomy was performed in 170 (56.9%) patients (74 men and 96 women), whereas OA was done in 89 (29.8%) patients (44 men and 45 women). In 13.4% of patients (24 men and 16 women) conversion from LA to OA was done. Mean operating time was 53.4 ±16.1 min (range: 25--100 min) for LA, and 55.4 ±20.2 min (range: 20--140 min) for OA; p = 0.64. Mean hospital stay after LA was 4.0 ±1.2 days (range: 2--9 days), while it was 6.0 ±4.2 days (range: 2--28 days) after OA; p < 0.001. Laparoscopic appendectomy was 24.1% of all appendectomies performed in the year 2008, 54.1% in the year 2009, and in consecutive years 71.7% in 2010 and 65.6% in 2011. Conclusions: Laparoscopic appendectomy method did not require longer surgery times and entailed shorter hospital stays as compared with OA. In our opinion, LA should be the preferred approach in surgical treatment of AA in adults. [ABSTRACT FROM AUTHOR]