Setup errors in patients with head-neck cancer (HNC), treated using the Intensity Modulated Radiation Therapy (IMRT) technique: how it influences the customised immobilisation systems, patient’s pain and anxiety

• DOI: 10.1186/s13014-017-0807-y
• Publication Date: 2017-04-27T09:16:43Z
• Authors: Massimiliano Cont...; Monica Guberti; Roberta Saccani; Luca Braglia; Cinzia Iotti; Andrea Botti; Emilio Abbati; Marina Iemmi
• Keywords: Adult; Male; Adolescent; Setup error; R895-920; Pain; Anxiety; Radiotherapy Setup Errors; Medical physics. Medical radiology. Nuclear medicine; Immobilization; 03 medical and health sciences; 0302 clinical medicine; Customised immobilisation systems; Humans; Longitudinal Studies; Prospective Studies; IMRT; Radiation Injuries; RC254-282; Aged; Aged, 80 and over; Research; Radiotherapy Planning, Computer-Assisted; Neoplasms. Tumors. Oncology. Including cancer and carcinogens; Radiotherapy Dosage; Middle Aged; Prognosis; 3. Good health; HNC; Head and Neck Neoplasms; Female; Follow-Up Studies

In patients with head-neck cancer treated IMRT, immobility of the upper part body during radiation is maintained by means customised immobilisation devices. The main purpose this study was to determine how procedures for preparation systems and characteristics influence extent setup errors.A longitudinal, prospective involving 29 IMRT. Data were collected before CT simulation all treatment sessions (528 errors analysed overall); correlation possible risk factors explored using a linear mixed model.Setup not influenced patient's anxiety pain. Temporary removal thermoplastic mask carrying out shows statistically borderline, clinically relevant, increase (+24.7%, 95% CI: -0.5% - 55.8%). Moreover, unit therapists who model associated -18% (-29.2% -4.9%) reduction errors. error physical features; in particular, it increases both whom position obtained 'Shoulder down' (+27.9%, 2.2% 59.7%) 'Scoliosis/kyphosis' problems (+65.4%, 2.3% 164.2%). Using 'Small size standard plus customized neck support device' -52.3% (-73.7% -11.2%) reduction. number encountered entire cycle does show associations. Increase mass index slight (-2.8%, -5% -0.7%).The patient forcing shoulders downwards, significant scoliosis or kyphosis are found be that can cause an errors, while use size' device BMI diminish them.