Cardio-respiratory synchronization is expressed by the formation of inherent harmonics associated with respiratory movements
and is a favorable diagnostic sign.
Four- channel electroencephalogram (EEG), electromyogram (EMG-submental and right-left tibialis), two-channel electrooculogram (EOG - right-left), electrocardiogram (ECG), nasal airflow, thorax and abdominal respiratory movements
, pulse oximetry, blood oxygen saturation and body position data were recorded throughout the night during PSG.
If respiratory movements
are absent in ten minutes and PaCO [sub]2 is ≥60 mmHg or 20 mmHg over a baseline, apnea can be confirmed.
Physical examination characteristically reveals asymmetry of two sides of thorax, reduction in respiratory movements
and absence of air entry in the affected side.
After 14 days of treatment, all the animals recovered completely with no coughing, normal respiratory movements
and normal lung sounds on auscultation.