An immersion lithographic projection apparatus is disclosed in which liquid is provided between a projection system of the apparatus and a substrate. The controller controls a first quantity of liquid fuel to the engine at a first AF ratio and a second quantity of vapor fuel to the engine at a second AF ratio during a predetermined period after start-up. The detected arrhythmia event is classified based on the respiratory measure and the IEGM signals, wherein arrhythmia events that satisfy at least a first criterion is classified as an arrhythmia event requiring therapy. A construction module constructs a SQL command for each row of the primary table.