Case Scenario A 65-year-old woman...

Case Scenario

A 65-year-old woman is receiving chemotherapy for returning breast cancer, which has metastasized to the bone pleura, and liver. Her physician has delayed several treatment courses and modified the chemotherapy dosage because, despite supportive treatment, she has make knowned persistent anemia. Bone marrow biopsy and aspiration revealed hypercellularity with exces blast lonely dwellings (20 percent). The patient has perform the operations indicated ined "preleukemia" (i.e., refractory anemia with exces blast cells) and her physician has told her that she has six month or les to live.

to what extent did her physician come up with this six-month time frame? I have been told that a patient's first question after receiving a terminal illness diagnosis is commonly "How often time do I have left?" for what reason accurate can a physician be when predicting death? What factors should be considered when determining a prognosis?

Commentary

Physicians repeatedly overestimate a terminal patient's life expectancy. united study (1) showed that physicians overestimated survival by way of a factor of 5.3. A not many clinical guideposts and a basic understanding of disease progression can improve a physician's ability to tender patients and their families more accurate time frames in which to organize their priorities.

Although medical decisions many times are based on a patient's prognosis, an accurate diagnosis and definitive treatment have become more important in the new medical setting. Patients usually receive little prognostic information, and advocacy disposes traditionally focus only on survival. This is changing, however, as medicine becomes increasingly evidence-based. Researchers are evaluating treatment consequences based on factors beyond simple survival (eg splendor of treatment, quality of life, severity of symptoms, caregiver and societal burdens) (2)

Specific to the case scenario, the mostly important prognostic factors to consider when treating a woman with returning breast cancer (e.g., locally intermittent in the chest wall, regional lymph nodes or, principally commonly, distant metastasis to the bone) are the disease-free interval (i.e., the time between completion of primary treatment and disease recurrence) and the magnitude and locations of metastases. These factors can help predict the clinical behavior and progression of the disease.

A patient with a lengthy disease-free interval (i.e., one year or more) and limited metastasis will have a better prognosis than a patient who has been disease delivered for less than one year and has more widespread metastasis. Metastasis to the bone or pleura is not imminently life threatening; however, metastasis to the liver, lung or brain considerably diminishs the patient's life expectancy. A patient with metastasis to the liver and lung has a median life expectancy of les than six month A patient with widespread metastasis or with metastasis to the lymph nodes has a life expectancy of les than six weeks. A patient with metastasis to the brain has a more variable life expectancy (one to 16 months) depending in succession the number and location of lesions and the specifics of treatment. Certain cancer complications (eg periodical hypercalcemia and septicemia, malignant pericardial effusion, and abdominal carcinomatosis with ascites and partial bowel obstruction) are associated with les favorable prognoses. Many patients with comparable diseases will reply similarly; however, some will either do greatly worse or much better than calculate uponed A patient's prognosis also is based onward his or her response to treatment.

Other than cancer histopathology, metastasis, and tumor complications, the couple most important factors to turn the thoughts at when determining a prognosis are: (1) in what manner well the patient is able to perform activities of daily living (eg bathing, dressing, toileting), and (2) by what means burdensome the symptoms are to the patient. (3) Physicians can use the Karnofsky performance scale (KPS) (3) to help determine a patient's ability to perform activities of daily living. If a patient is sedentary for 50 percent or more of his or her waking hours and is becoming increasingly sustained by on caregivers, or if he or she has a KP score of les than 50 percent the life expectancy is brace to three months. (3) Symptoms of that kind as difficulty swallowing, dry chaps shortness of breath, lack of appetite, and weight los may portend a poorer prognosis (4) and may accompany anorexia-cachexia syndrome (wasting). Increasing symptoms and diminished functionality cause progressive debilitation. Progressive debilitation (and its posterior complications) is the underlying mechanism that causes death in patients who are terminal.

Other important prognostic considerations include comorbidity, age, and nutritional status. Psychosocial and spiritual factors also should be considered. modern evidence (5) has called into question the notion that patients with a athletic "will to live" often live longer than those who have accepted that they are going to die; however, patients with inadequate social support, and patients who are impoverished or poorly adherent to prescribed regimens, may have shorter life expectancies. Unresolv relationship issues or existential distress may put off the dying process.