Hypothermia was successfully initiated in @ % of patients , and median -LSB- interquartile range -RSB- temperature at first balloon inflation was @ -LSB- @-@ @ -RSB- C. Median door-to-balloon times in the hypothermia and control groups were @ -LSB- @-@ -RSB- and @ -LSB- @-@ -RSB- minutes , respectively ( P = @ ) .