Feasibility of Wireless Continuous Vital Sign Monitoring and Impact on Patients Undergoing Adult Spinal Surgery in a General Ward

"Patients included in the study will be continuous monitored by CPC12S is a wearable sensor that is worn on the chest using electrodes measuring electrocardiography single lead (ECG), Heart rate, respiratory rate, SpO2, blood pressure and temperature.~The system calculates the heart rate by analysing R-peaks of QRS-complexes in the raw ECG data.~Respiratory rate is recorded using impedance pneumography. SpO2 is determined by analysing the photoplethysmogram (PPG) wave. Blood pressure is derived by calculating the pulse transit time (PTT) using R-peaks from the QRS complexes, peaks in the photoplethysmogram (PPG) pulse waves, and timing of the second heart-tone corresponding to the dicrotic notch, measured by a stethoscope in the device.~Temperature is measured by a thermistor placed in the axilla. Vital signs are updated every 20 seconds and measurements are transmitted via Bluetooth to an Android cell phone that is uploading the data via WIFI to a secured server."