Prehabilitation for lymphedema in head and neck cancer patients at a community cancer center

Education of the patient, before cancer therapy, of the risks of lymphedema is very important. Before the implementation of the prehabilitation program, some patients did not fully comprehend what a painful and debilitating consequence of cancer treatment lymphedema could be.

Discussion

We introduced a prehabilitation program to detect and treat lymphedema in head and neck cancer patients in January 2012 part way through following an observation cohort from June2008 through June2015. Central to this, in our center, was the appointment of a nurse navigator whose primary focus was on head and neck cancer patients. We placed a high priority on the early detection and treatment of lymphedema because do so has been associated with better outcomes in other centers.

One immediate consequence of the inception of our program was the identification of more patients with external lymphedema. Our detected incidence rose significantly (P = .0002), from 27% in the period June 2008-December 20112010, before the program, to 48% during the January 2012-June 2015 period, after the inception of the program. This later incidence rate is in line with published incidence rates in most centers. However, it is still somewhat short of the 75% suggested in one center,⁹ which suggests we are either we are underdetecting lymphedema or there are differences in definition criteria or sensitivity levels for defining lymphedema.

There are currently no specific objective measures of lymphedema, so there is bound to be some variation in diagnosis rates. In our program, we rely heavily on the patient-reported outcome measures, the NDI instrument, and digital photography to detect and monitor lymphedema, starting with the pretreatment baseline values that are established for each patient.

The use of digital photography in our community hospital setting, which includes taking photographs before and after treatment and at each visit, motivates and encourages patients and provides a tool for clinical lymphedema therapists to visually document benefits of treatment. Patients’ motivation and compliance with their established home program for head and neck lymphedema self-management are essential. The elements of the home program may include self-manual lymph drainage, home-modified compression bandaging and garment wear, therapeutic exercises, and skin care. Patients with lymphedema who adhered closely with their therapy program were more than 8 times more likely to improve compared with noncompliant patients.¹⁷

Some groups of patients have a greater risk of developing lymphedema than others,⁵ so the development of an algorithm to predict lymphedema seemed possible. However, in our cohort of patients, only neck dissection, with its disruption of the lymphatic system of the neck, was strongly associated with external lymphedema (Table 3). It is important to note that some patients who did not undergo surgery developed lymphedema. In our patients, high doses of radiation alone did not seem to predispose to lymphedema. That suggests that no group of head and neck cancer patients should be ignored, which is why we did routine screening of all patients before, during, and after treatment.

Our protocol falls short in the detection of internal lymphedema. For example, information on swallowing gathered by our speech pathologists (in a different department) has not, so far, been included in our assessment. This is one opportunity to improve on our approach, especially because speech difficulties may be associated with internal lymphedema. In addition, we are not equipped for the requisite internal examinations. Unfortunately, there are no practical and successful treatments for patients suffering from internal swelling. This represents a challenge for the medical community to better meet this need. Therefore, although we are missing some assessments of internal lymphedema, this is of little therapeutic consequence at this time.

The increase in the detected incidence of external lymphedema points to a practice gap that has been resolved by the appointment of a dedicated nurse navigator who attends oncology reviews to share knowledge and information. Another educational effort has been made with the patients themselves to increase compliance and improve continuous care at home.

There is always room for improvement, however, either by feedback acquired from other institutions and hospitals or through the future introduction of more objective assessment techniques.

Conclusions

The introduction of the prehabilitation program at our center has coincided with a significantly improved detection rate for external lymphedema in head and neck cancer patients. It may be because the program emphasizes education about lymphedema that awareness of the condition has increased throughout the center. It is now widely recognized that all patients are at risk of lymphedema regardless of whether they fall into an acknowledged high-risk group. Our experience shows that there is no significant difference between treatment modalities apart from neck dissection. In our population, the use of this procedure is decreasing. External lymphedema can develop even in patients who do not have surgery. Therefore, there is no sound way to predict which patients are most likely to suffer from the accumulation of fluid in their head and neck after treatment for head and neck cancer. Thus, an assessment as described here, during and after treatment for all patients, is warranted. Patients are now being seen earlier as a part of the prehabilitation program, which facilitates access to complete decongestive treatment at an earlier stage, improves patient outcomes, and increases patient satisfaction with their treatment. Our prehabilitation program could serve as a model for other community hospital centers in achieving outcomes that are as good as those in academic centers.

Acknowledgments