Variable | Value | Source |

Robot-assisted procedure | ||

Fixed cost | ||

New surgical robotic system | €1 000 000 | Assumption* |

Useful life surgical robotic system (in years) | 7 | Assumption* |

Annual interest rate | 4.20% | 5 |

Annual maintenance cost | €80 000 | Assumption* |

Annual number of procedures | 200 | Assumption* |

Fixed cost per procedure | €1239 | |

Variable cost | ||

Variable cost robotic system | €1500 | Assumption* |

Total cost | €2739 | |

Endoscopic procedure | ||

Fixed cost | ||

Endoscopy tower | €100 000 | Radboudumc |

Useful life endoscopy tower (in years) | 7 | Radboudumc |

Annual interest rate | 4.20% | 5 |

Annual maintenance cost | €8000 | Assumption* |

Annual number of procedures | 200 | 5 |

Fixed cost per procedure | €124 | |

Variable cost | ||

Variable cost endoscopic procedure | €1000 | Assumption* |

Total cost | €1124 | |

Benefit for potential effects | ||

Duration of operation (min) | €13.93 | Radboudumc |

Conversion | €1700 | 18–20* |

Complication with Clavien-Dindo I/II | €5000 | 18–20* |

Complication with Clavien-Dindo III–V | €16 000 | 18–20* |

Lasting complication | €15 000 | 18–20* |

Positive margin | €5000 | 18–20* |

Hospitalization (day) | €668 | 5 |

QALY | €50 000 | 9 |

*We illustrated the use of the model with a hypothetical example, for which we used the input values given in this table. Even though these input values were based on existing literature, these do not reflect a specific indication.

QALY, quality-adjusted life year.