INTRODUCTION: COVID-19 pandemic has lead to lockdown of population in many countries . In Spain, the state of alarm was established from March 15 to June 20 , 2020 . Usually this fact decreased people's mobility and physical activity, in addition to producing or exacerbating psychological disorders . Our aim was to determine the influence that this condition had over the short-term ponderal results of patients undergoing laparoscopic vertical gastrectomy from May 2019 to May 2020 .
METHODS: Case-control study for comparing the percentage of excess weight lost (% EWL) and the percentage of total weight lost (% TWL) of patients that underwent a VG during the last year, so they were affected by lockdown in April and part of March 2020 (group 1), to the% EWL and% TWL of a control group (group 2), obtained from our previous series .
RESULTS: The mean% EWL in group 1 is 47,37±18,59 and in group 2 is 51,13±17,59, being p=0,438 . Meanwhile, the mean% TWL in group 1 is 21,14±8,17 and in group 2 is 24,67±8,01, with p=0,115 .
CONCLUSIONS: Population lockdown by COVID-19 did not get worse short-term results of vertical gastrectomy . More studies with a larger number of patients are necessary to draw firm conclusions.