Hematology and Oncology Book

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Cancer Pain

Aka: Cancer Pain, Pain in Terminally Ill Patients, Pain at the End of Life
  1. See also
    1. Cancer Pain Management
    2. Cancer Pain Medications
    3. Cancer Pain Opioid
  2. Approach: Goals of Cancer Pain Management
    1. Overall Strategy
      1. Palliative Care is active treatment, not passive
    2. Approach
      1. Identify the cause of pain
      2. Prevent the pain from recurring
      3. Erase the memory of the pain
      4. Maintain a clear sensorium and normal affect
  3. Pathophysiology: Cancer Pain
    1. Address all components to achieve effective management
    2. Components
      1. Physical (biological) component 25%
      2. Psychological (emotional) component 25%
      3. Social Component 25%
      4. Spiritual Component 25%
  4. Symptoms
    1. Use a systematic approach to defining severity of pain (consistently use the same scale or assessment tools)
      1. See Pain Scale
      2. See Pain Assessment in Advanced Dementia Scale
    2. Characterize the pain types and source
      1. Somatic Pain (aching or gnawing pain)
      2. Visceral Pain (cramping or shifting pain)
      3. Neuropathic pain (burning, shooting or shock-like pain)
    3. Distinguish pain related to terminal illness (e.g. Cancer Pain) from Chronic Pain from other cause (non-malignant)
      1. Treat Chronic Pain with focus on improving quality of life (but differentiating from the terminal illness related pain)
  5. Differential Diagnosis
    1. Iatrogenic pain
      1. Cancer active treatment
    2. Chronic Pain
      1. Exacerbation of Chronic Pain unrelated to cancer
    3. Consider new acute pain causes in cancer patients
      1. Pathologic Fracture, bone metastases or neoplastic spinal cord compression
        1. See Metastatic Cancer involving Long Bones
        2. Lung Cancer, Breast Cancer and Prostate Cancer are most common
        3. Thyroid CancerKidney Cancer may also cause bone metastases
        4. Multiple Myeloma may cause lytic bone lesions
      2. Hemorrhage or direct invasion into region of tumor
        1. Hepatic capsule irritation (e.g. liver metastases, primary Hepatoma)
        2. Pancreatic Cancer local invasion
        3. Peritoneal irritation (cancer seeding, Ascites)
      3. Obstruction
        1. Ureteral obstruction
        2. Biliary duct obstruction
        3. Small Bowel Obstruction, abdominal adhesions or bowel perforation
      4. Muscle Cramps
        1. See Nocturnal Leg Cramp
        2. Electrolyte abnormalities (e.g. Diuretics, Uremia, Cirrhosis)
          1. Hypomagnesemia
          2. Hypocalcemia
          3. Elevated Creatinine Kinase
          4. Hypothyroidism
        3. Peripheral Nerve Injury from surgery or Radiation Therapy
        4. Neurotoxic Chemotherapy (e.g. Vincristine, Vinblastine, Cisplatin)
          1. Vincristine may cause Trigeminal Neuralgia (CN 5) as well throat pain (CN 9)
        5. Hormonal agents (e.g. Breast Cancer Management)
        6. Direct-invasion or metastatic disease related peripheral nerve invasion
  6. Management
    1. See Cancer Pain Management
    2. See Cancer Pain Medications
    3. See Cancer Pain Opioid
    4. Specific management
      1. See Cancer Emergencies
      2. See Metastatic Cancer involving Long Bones
      3. See Cancer Related Bowel Obstruction
      4. See Cancer Related Constipation
      5. See Oral Mucositis
  7. References
    1. Abrahm (1999) Ann Intern Med 131:37-46 [PubMed]
    2. Cherny (2000) CA Cancer J Clin 50(2):70-116 [PubMed]
    3. Levy (1996) N Engl J Med 335:1124-32 [PubMed]
    4. Miller (2001) Am Fam Physician 64(7):1227-34 [PubMed]

Cancer pain (C0596240)

Definition (CSP) somewhat localized sensation of discomfort, distress or agony resulting from the stimulation of specialized nerve endings in the process of cancer growth, or from cancer therapy.
Concepts Sign or Symptom (T184)
Italian Dolore da cancro
Japanese 癌疼痛, ガントウツウ
Czech Rakovinová bolest
English cancer pain, Cancer pain
Hungarian Rákos fájdalom
Portuguese Dor Cancroosa
Spanish Dolor canceroso
Dutch kankerpijn
French Douleur cancéreuse
German Krebsschmerzen
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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