Cancer Pain Management – Therapy Options You Can Consider

Cancer pain management is a critical component of oncological care that significantly impacts the quality of life for patients. As the incidence of cancer continues to evolve across different age groups, the medical community remains focused on providing comprehensive support to manage the physical symptoms associated with the condition.

An estimated 1 in 4 Singapore residents may develop cancer by the age of 75 years. For many individuals, cancer pain serves as a significant hurdle during their treatment journey. Managing cancer pain effectively requires a multi-faceted approach tailored to the specific needs of the patient.

Get An Appointment With A Pain Management Specialist

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Why Does Cancer Cause Pain?

Cancer pain can arise from several sources. It may be caused by the tumour itself pressing on nerves, bones, or organs. Alternatively, pain can be a secondary effect of treatments such as surgery, chemotherapy, or radiotherapy. In some cases, patients may experience “breakthrough pain,” which is a sudden flare of intense pain that occurs even when regular pain medication is being taken.

In Singapore, the goal of a pain management specialist is to assess the type and severity of the pain to determine the most appropriate intervention. This assessment involves identifying whether the pain is nociceptive (resulting from tissue damage) or neuropathic (resulting from nerve damage).

Pharmacological Options For Cancer Pain Management

The World Health Organisation (WHO) provides a widely accepted framework for managing cancer pain, often referred to as the “analgesic ladder.” This ladder guides healthcare professionals in escalating treatment based on the intensity of the pain.

• Non-Opioids: For mild pain, medications such as paracetamol or non-steroidal anti-inflammatory drugs (NSAIDs) are typically the first line of defence.
• Weak Opioids: If pain persists or increases to a moderate level, specialists may introduce weak opioids, sometimes in combination with non-opioid medications.
• Strong Opioids: For severe cancer pain, strong opioids such as morphine or fentanyl may be prescribed. These are highly effective but require careful monitoring by medical professionals to manage potential side effects such as constipation or nausea.

Adjuvant medications, which are not primarily designed to treat pain, may also be used. These include antidepressants or anticonvulsants that can be particularly effective for neuropathic pain.

Interventional Procedures And Advanced Therapies

When oral medications are insufficient or cause intolerable side effects, interventional pain management techniques may be considered. These procedures aim to interrupt pain signals before they reach the brain.

Nerve Blocks And Neurolysis

This involves injecting a local anaesthetic or a neurolytic agent around a specific nerve or plexus. For example, a celiac plexus block or neurolysis is often used for patients with pancreatic cancer to alleviate debilitating abdominal pain.

Intrathecal Pump For Intractable Pain

For patients suffering from chronic, intractable cancer pain, an Intrathecal (IT) pump (such as the Medtronic SynchroMed pump) may be recommended. This device is surgically implanted to deliver medication directly into the space around the spinal cord.

The benefits of an IT pump include:

• Lower Dosage: It uses only 1/300th of the dose required for oral opioid administration.
• Reduced Side Effects: Because the dose is so small and targeted, patients experience fewer side effects such as confusion, delirium, constipation, and urinary retention.
• Enhanced Wellbeing: This therapy can significantly increase mobility and overall quality of life.

Radiofrequency Ablation (RFA)

Radiofrequency ablation uses heat generated from medium-frequency alternating current to decrease pain signals from a specific area.

Holistic And Complementary Approaches

Integrating non-pharmacological therapies can enhance the effectiveness of medical treatments and improve the overall well-being of the patient.

• Physiotherapy: Gentle exercise and physical therapy can help maintain mobility and reduce pain associated with muscle tension or stiffness.
• Psychological Support: Counselling or cognitive-behavioural therapy can provide patients with coping mechanisms to manage the emotional impact of chronic pain, such as anxiety and depression.
• Acupuncture: Some patients find relief through acupuncture for certain types of cancer-related pain and treatment side effects like chemotherapy-induced nausea.

When To Consider Seeing A Pain Management Specialist

For many individuals navigating a cancer diagnosis, it is common to believe that pain is an inevitable part of the journey that must be endured. However, modern medical interventions ensure that this is not the case. Recognising the right time to seek help from a specialist is essential for maintaining your physical and mental health.

You should consider an appointment with a pain management specialist if:

• Pain Interferes With Daily Function: If the discomfort prevents you from sleeping, eating, or performing basic daily tasks, it is a clear sign that your current pain management regimen requires adjustment.
• Current Medications Are Ineffective: If your primary physician has prescribed standard painkillers but you still experience significant discomfort or “breakthrough pain,” a specialist can offer more advanced pharmacological or interventional options.
• Side Effects Are Intolerable: Many patients find that while their medication reduces pain, the side effects (e.g. severe drowsiness, confusion, or gastrointestinal distress) significantly lower their quality of life. A specialist can help find a balance or switch to therapies that bypass the digestive system.
• Pain Is New Or Changing: A sudden change in the intensity, location, or type of pain (such as shifting from a dull ache to a sharp, electric-like sensation) should be evaluated promptly to identify the underlying cause and adjust treatment accordingly.
• You Prefer A Multimodal Approach: If you are interested in exploring minimally invasive procedures, such as nerve blocks or radiofrequency ablation, to reduce your reliance on oral medications.

In Singapore, early intervention by a specialist often leads to better long-term outcomes. By addressing pain at its onset, medical professionals can prevent it from becoming chronic and more difficult to treat.

Navigating Costs And Support In Singapore

Patients and caregivers often express concerns regarding the financial aspects of long-term cancer pain management. The Ministry of Health has established fee benchmarks for various medical procedures to ensure transparency in the private healthcare sector.

For instance, if a patient requires inpatient care for pain stabilisation, the daily attendance fees for doctors in general wards typically range from $210 to $420. Understanding these benchmarks helps families plan for the costs associated with comprehensive cancer care.

Moving Forward With Integrated Cancer Pain Management

Effective cancer pain management is not merely about the suppression of symptoms; it is about restoring a patient’s ability to engage with their loved ones and participate in daily activities. With a wide array of therapy options available in Singapore, from advanced interventional procedures to supportive holistic care, patients do not have to endure pain in silence.

If you or a loved one are experiencing persistent pain related to a cancer diagnosis, it is essential to seek professional guidance. You may contact us to schedule an appointment with a pain management specialist to discuss a personalised treatment plan.

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This medical content has been reviewed by Dr Diana Chan, a pain specialist whose personal experience with chronic injury allows her to offer deeply empathetic, patient-centric care. She has extensive expertise in performing over 500 advanced, minimally invasive interventional procedures. Dr Chan integrates modern clinical interventions with traditional techniques like acupuncture to restore quality of life.