Iterative Patient Testing of a Stimuli-Responsive Swallowing Activity Sensor to Promote Extended User Engagement During the First Year After Radiation: Multiphase Remote and In-Person Observational Cohort Study

BACKGROUND

Frequent sensor-assisted monitoring of changes in swallowing function may help improve detection of radiation-associated dysphagia before it becomes permanent. While our group has prototyped an epidermal strain/surface electromyography sensor that can detect minute changes in swallowing muscle movement, it is unknown whether patients with head and neck cancer would be willing to wear such a device at home after radiation for several months.

OBJECTIVE

We iteratively assessed patients' design preferences and perceived barriers to long-term use of the prototype sensor.

METHODS

In study 1 (questionnaire only), survivors of pharyngeal cancer who were 3-5 years post treatment and part of a larger prospective study were asked their design preferences for a hypothetical throat sensor and rated their willingness to use the sensor at home during the first year after radiation. In studies 2 and 3 (iterative user testing), patients with and survivors of head and neck cancer attending visits at MD Anderson's Head and Neck Cancer Center were recruited for two rounds of on-throat testing with prototype sensors while completing a series of swallowing tasks. Afterward, participants were asked about their willingness to use the sensor during the first year post radiation. In study 2, patients also rated the sensor's ease of use and comfort, whereas in study 3, preferences were elicited regarding haptic feedback.

RESULTS

The majority of respondents in study 1 (116/138, 84%) were willing to wear the sensor 9 months after radiation, and participant willingness rates were similar in studies 2 (10/14, 71.4%) and 3 (12/14, 85.7%). The most prevalent reasons for participants' unwillingness to wear the sensor were 9 months being excessive, unwanted increase in responsibility, and feeling self-conscious. Across all three studies, the sensor's ability to detect developing dysphagia increased willingness the most compared to its appearance and ability to increase adherence to preventive speech pathology exercises. Direct haptic signaling was also rated highly, especially to indicate correct sensor placement and swallowing exercise performance.

CONCLUSIONS

Patients and survivors were receptive to the idea of wearing a personalized risk sensor for an extended period during the first year after radiation, although this may have been limited to well-educated non-Hispanic participants. A significant minority of patients expressed concern with various aspects of the sensor's burden and its appearance.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03010150; https://clinicaltrials.gov/study/NCT03010150.

ASSESSMENT OF DISTRESS DYNAMICS AND QUALITY OF LIFE OF CANCER PATIENTS AT THE STAGE OF RADIATION THERAPY AND POSSIBILITIES OF THEIR CORRECTION

Radiation therapy (RT) is the main type of antitumor treatment in inoperable patients. Low awareness and fear of the development of radiation reactions contributes to the destabilization of psycho-emotional state of patients, which can result in withdrawal from treatment and deterioration of their quality of life (QOL). Despite a steady increase in cancer rates in Ukraine, there are currently no studies to develop measures to improve psychological condition of patients undergoing treatment in radiation therapy departments.

OBJECTIVE

to assess the dynamics of psycho-emotional status and QOL of cancer patients at the stage of radiation therapy.

MATERIALS AND METHODS

The study involved psychodiagnostic examination of 66 cancer patients who underwent radiation treatment in the clinic of the State Organization «Grigoriev Institute for Medical Radiology and Oncology of the NAMS of Ukraine», of whom Group 1 included 44 patients with head and neck cancer, Group 2 comprised 22 patients with colorectal cancer. Comparison group comprised 30 conditionally «healthy» respondents without cancer. All patients had stage III-IV cancer. The study implied the employment of «Distress Thermometer», Hospital Anxiety and Depression Scale (HADS), and the SF-36 Questionnaire (Short Form). The examination was performed before and following the course of radiation therapy. Group 1 patients underwent only psychodiagnostic examination, Group 2 patients apart from psychodiagnostic were accompanied by a psychologist before undergoing radiation procedures. In the comparison group, the survey was conducted once.

RESULTS AND DISCUSSION

Assessment of the data showed that before the start of RT most subjects (72.73 % in Group 1 and 77.3 % in Group 2) had a high level of distress, they were worried and nervous before the first radiation procedure, had fears about the consequences and side effects. The level of anxiety in Group 1 at the pathological and subclinical level was recorded in 54.55 % of patients, the rate of depression at the subclinical level was diagnosed in 18.20 %, and in 9.10 % of patients at the clinical one. In Group 2, the level of anxiety that exceeded the norm was recorded significantly less often (27.25 % vs. 54.55 %, pt < 0.05), and the rate of depression at the subclinical level was diagnosed significantly more often than in Group 1 (54.50 % vs. 18.20 %, pt < 0.05), and in 18.2 % of patients at the clinical level. After radiation, 81.81 % of Group 1 patients showed an increase in distress and anxiety, and depressive symptoms tended to worsen. The level of distress in Group 2 after consulting a psychologist in preparation for RT and undergoing radiation procedures decreased almost twice, the level of anxiety decreased to normal, the indicators of depressive symptoms remained unchanged. According to QOL assessments on the scales of physical and role functioning (PF and RP), general health (GH) and mental health (MH), patients in both groups had significantly lower scores before the RT than in the comparison groups. After the procedures, there was a significant deterioration in the RP scale in Group 1 (18.75 vs. 40.00, pt < 0.05), and an improvement of almost 2 times in Group 2 (35.73 vs. 68.33, pt < 0.06). The indicator of general health (GH) at the end of RT in Group 1 did not change, and in Group 2 it tended to improve (20.93 vs. 47.26, pt < 0.06). Life expectancy (LE) in Group 1 tended to decrease further after treatment, having increased 1.7 times in Group 2.

CONCLUSIONS

The study showed that cancer patients before the onset of RT experienced a rather strong distress and level of anxiety. Psychological correction of the emotional state at the beginning of treatment allowed for a significant improvement in the QOL of patients on the scales of role physical functioning (RF) and vitality (VT). An important area of work of a clinical psychologist at this stage of treatment involved correction of cognitive sphere, support of role functioning and formation of behavior aimed at further treatment.