Safety Hurdles of the Head and Neck Cancer Pathway - Safe Care Strategy

This strategy identifies the principal safety risks across the head and neck cancer pathway and defines the coordinated actions required in primary, secondary and long-term care to prevent avoidable harm.

Head and neck cancer is the seventh most common cancer in the UK, accounting for 3% of new cancers and around 13,800 cases each year. Incidence has risen by 11% over the past decade.

Safety in care can be divided into avoiding pitfalls in initial presentation, appropriate choice and management of radical or palliative treatment, and ensuring general and personalised long-term follow-up is in place.

Management begins with prevention. Dentists and GPs should provide appropriate advice on reducing tobacco and alcohol use and improving nutrition. Human papillomavirus (HPV) is also a major aetiological factor, and vaccination of both boys and girls is intended to reduce HPV-related head and neck cancer.

Early recognition of potentially malignant lesions and early-stage disease can reduce treatment intensity, long-term morbidity and mortality. Dentists and GPs both have an important role because many people do not have regular access to dental care and may present to primary care with oral symptoms. Whilst oral cancer knowledge is part of CPD for dentists, adequate training of all health professionals in primary care is important.

Short and long-term care should be coordinated through the multidisciplinary team, including surgeons, oncologists, specialist nurses, dietitians, speech and language therapists, psychologists and restorative dentists. This approach integrates appropriate treatment planning, surveillance with oral rehabilitation, nutrition, speech and swallowing support, psychological care and a clear point of contact for the patient.

During radical treatment (either surgical, radiotherapy, chemotherapy or immunotherapy) there are checklists and safety procedures to minimise the risk of incorrect treatment being administered and ensure that the treatment morbidity is minimised as much as possible.

In the surgical environment, the WHO surgical checklist is now firmly integrated in operating theatre protocols preoperatively. This ensures that checks on the correct patient and planned procedure are made, all members of the theatre team are introduced and know their role, and availability of required equipment, blood for transfusion and DVT prophylaxis is confirmed.

Computerised preoperative surgical planning allows construction of cutting guides and stents which facilitate more accurate resections and reconstructions, quicker surgery and improved aesthetic outcomes and rehabilitation.

Radiotherapy can damage healthy tissue as well as the cancer for which the treatment modality is given. In order ensure maximum effective radiation dose reaches a head and neck cancer field, precise 3D mapping and advanced delivery systems like Intensity-Modulated Radiation Therapy (IMRT) are used to focus high energy on the tumour while protecting nearby healthy organs and tissues. The planned target volume adds a small safety margin of 3-5mm around the tumour to account for daily patient movement or setup changes.

Complex cancer surgery frequently requires reconstruction using microvascular free-flap tissue transfer, whose viability depends on blood flow through the anastomosed vessels. Early recognition of impaired post-operative blood flow is therefore vital. Staff should be trained to monitor flaps and recognise deterioration promptly, supported by Doppler devices that may detect reduced blood flow before clinical signs of failure appear. Earlier detection enables faster attempts at flap salvage and may improve outcomes.

Oral health requires lifelong attention because altered anatomy, trismus and radiotherapy-related xerostomia increase the risks of poor hygiene, caries, infection and periodontal disease. Primary dental care should provide routine restorative and periodontal treatment and regular fluoride application. Complex rehabilitation, including implant-retained prostheses or dentures for difficult anatomy, should be coordinated with restorative dentistry. Before extraction or invasive treatment in an irradiated field, the dental team should confirm the radiation history and seek specialist advice in order to reduce the risk of development of osteoradionecrosis.

The following principles should guide coordinated long-term care across primary and secondary services.

• Long-term care aims to detect recurrence or a second primary cancer promptly, manage late effects, preserve airway safety, swallowing, nutrition, speech, oral health and independence, address psychosocial needs, and provide rapid access back to specialist care.

• Safe follow-up requires a named clinician or key worker to coordinate responsibilities, maintain an up-to-date treatment plan, and provide clear escalation and contact arrangements. The model may combine scheduled review, supported self-management and patient-initiated follow-up where clinically appropriate and accessible.

• Safe care depends on timely access to head and neck surgery, clinical oncology, radiology, pathology, specialist nursing, speech and language therapy, dietetics, restorative dentistry, physiotherapy, psychology, pain and palliative care, primary care, pharmacy and community services. At each review, there needs to be assessment of any recurrence symptoms, airway, swallowing, communication, oral health, pain, weight and nutrition; review medicines, psychological and social needs, and rehabilitation goals.

• Surveillance and recognition of recurrence require reviews that should combine a focused history with appropriate examination, and endoscopic assessment and imaging according to clinical need. Patients need to be made aware of important symptoms. Urgent specialist assessment is required for a new neck lump or oral/throat lesion, unexplained bleeding, persistent unilateral pain or otalgia, worsening dysphagia or aspiration, voice change, trismus, unexplained weight loss, cranial nerve or neurological symptoms, exposed bone or suspected osteoradionecrosis. Airway compromise, stridor, rapidly increasing swelling or inability to manage secretions requires emergency assessment.

• Safety measures need to be in place for any prescribed medication, planned procedures and treatment. Opioid, sedative and neuropathic pain medicines should be used cautiously where swallowing impairment, respiratory compromise or falls risk is present. Altered airway anatomy should be recorded prominently so that any future procedures (elective or emergency) are aware of the potentially dangerous issues during intubation. Patients with a total laryngectomy breathe through the neck stoma and require an airway-specific emergency response.

• Patients must understand the need for regular follow-up for disease monitoring and for detection of post-treatment problems. They should be encouraged to keep follow-up appointments, know who to contact between reviews and report new or worsening symptoms rather than waiting for the next appointment. They should tell their dentist about previous cancer treatment, seek specialist advice before invasive dental procedures after jaw irradiation, manage dry mouth with water or saliva substitutes, and limit acidic and sugary drinks. Coughing, choking, food sticking, recurrent chest infections or unintended weight loss should be reported.

In summary, early detection and referral, multidisciplinary planning, safety protocols during active treatment and coordinated and structured individual care plans between primary and secondary care are all essential safety elements in the head and neck cancer pathway, aiming to minimize patient morbidity and mortality.