Frame-Based and Mask-Based Stereotactic Radiosurgery: The Patient Experience, Compared

Author:

Pavlica Matthew,Dawley Troy,Goenka Anuj,Schulder Michael

Abstract

<b><i>Introduction:</i></b> Noninvasive frameless modalities have become increasingly utilized for stereotactic radiosurgery (SRS) for benign and malignant pathologies. There is minimal comparison in the literature of frame-based (FB) and mask-based (MB) SRS. With the dual capabilities of the Elekta Gamma Knife® Icon™, we sought to compare patient perceptions of FB and MB SRS with respect to comfort and pain and to examine effects of lesion type on the patient experience of SRS. <b><i>Methods:</i></b> Over a 1-year period, patients who underwent single fraction, fractionated or hypofractionated FB or MB Gamma Knife SRS at our institution were given an 8-question survey about their experience with the procedure immediately after treatment was completed. Descriptive statistics were applied. <b><i>Results:</i></b> A total of 117 patients completed the survey with 65 FB and 52 MB SRS treatments. Mean pain for FB SRS (5.64 ± 2.55) was significantly greater than mean pain for MB SRS (0.92 ± 2.24; <i>t</i><sub>114</sub> = 10.46<i>, p</i> &#x3c; 0.001). Patient comfort during the procedure was also higher for those having MB SRS (<i>p</i> &#x3c; 0.001). Mixed results were obtained when investigating if benign versus malignant diagnosis affected patient experience of SRS. For the purposes of this study, malignant diagnoses were almost entirely metastatic lesions. Diagnosis played no role on pain levels when all patients were analyzed together. The treatment technique had no effect on patient comfort in patients with benign diagnoses, while patients with malignant diagnoses treated with MB SRS were more likely to be comfortable (<i>p</i> &#x3c; 0.001). Among patient’s receiving FB treatments, diagnosis played no role on patient comfort. When only MB treatments were analyzed, patients were more likely to be comfortable if they had a malignant lesion (<i>p</i> &#x3c; 0.01). <b><i>Conclusions:</i></b> Patients treated with MB SRS experience the procedure as more comfortable and less painful compared to those treated using a FB modality. Overall, this difference was not affected by a benign versus a malignant diagnosis and the treatment type is more indicative of the patient experience during SRS. A more homogenous sample between modalities and diagnoses and further follow-up with the patient’s input on their experience would be beneficial.

Publisher

S. Karger AG

Subject

Clinical Neurology,Surgery

Reference23 articles.

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