Table 2– Cross-sectional area, flow and electromyogram (EMG) data immediately after lowering nasal pressure (baseline), during electrical stimulation (ES) of the genioglossus (GG) at the end of prolonged flow limitation, before awakening and after awakening
AnaesthesiaAwake
BaselineGG-ESPre-awake
Cross-sectional area mm2
 End-expiration58.4±61.385.4±61.3*88.4±26.2134.9±126.9#
 Peak inspiration25.1±28.966.3±75.5*11.8±8.280.4±83.5##
Flow L·min−111.5±6.518.6±9.2***11.4±6.425.1±8.3###
GG-EMG %max
 Tonic4.4±3.815.7±12.2**9.1±6.1#
 Peak inspiration13.0±10.762.2±32.7***17.7±10.2###
  • Data are presented as mean±sd. *: p<0.05; **: p<0.01;***: p<0.001 compared with baseline; #: p<0.05; ##: p<0.01; ###: p<0.001 compared with pre-awakening.