Our study aims to assess the relationship between the Seismofit® derived VO2 peak estimate and CPET-measured VO2 peak in patients who are having CPET as part of their preoperative workup. Our aim is to establish whether Seismofit® can be considered a cheaper, less resource intensive and better tolerated alternative to the CPET, or whether it might be useful as a screening tool to efficiently identify patients with exercise intolerance who may benefit from further characterisation by CPET.
Study Type
OBSERVATIONAL
Enrollment
35
Non Interventional
The Royal Marsden NHS Foundation Trust
London, United Kingdom
RECRUITINGAssess the relationship between Seismofit®-estimated VO2 peak and CPET-measured VO2 peak in HPB, gastro-oesophageal or colorectal cancer patients undergoing preoperative assessment for major surgery.
Strength and direction of relationship (Pearson correlation coefficient) between Seismofit® -estimated VO2 peak and CPET-measured VO2 peak.
Time frame: End of Trial (9 months)
Assess limits of agreement and bias between Seismofit®-estimated VO2 peak and CPET-measured VO2 peak
Limits of agreement and bias between Seismofit®-estimated VO2 peak and CPET-measured VO2 peak (Bland-Alman analysis)
Time frame: End of Trial (9 months)
Assess the relationship between Seismofit®-estimated VO2 peak and CPET-measured VO2 peak in each surgical subgroup: HPB, gastro-oesophageal and colorectal cancer patients.
Strength and direction of relationship (Pearson correlation coefficient) between Seismofit® -estimated VO2 peak and CPET-measured VO2 peak, as well as limits of agreement and bias (Bland-Altman analysis) in each surgical subgroup: HPB, gastro-oesophageal and colorectal cancer patients.
Time frame: End of Trial (9 months)
Assess the relationship between Seismofit® -estimated VO2 peak and other CPET derived variables: o Anaerobic Threshold (AT) o Peak Power Output (PPO) o Ventilatory equivalents for carbon dioxide (VE/VCO2)
Strength and direction of relationship (Pearson correlation coefficient) between Seismofit® -estimated VO2 peak and the CPET-measured variables of AT, PPO and VE/VCO2
Time frame: End of Trial (9 months)
Assess patient experience of the Seismofit® test using a brief measure that has been used previously in CPET research
Patient concern, comfort, and overall satisfaction of Seismofit® measurement compared with CPET.
Time frame: End of Trial (9 months)
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