malignant haematology - do’s and don’ts · don’t do routine followup ct scans in patients...
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Malignant Haematology - Do’s and Don’ts
Michael Harvey Haematology Department
Liverpool Hospital
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Don’t….
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Overdiagnose…
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What do do about paraproteins?
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• Occur in ~6 percent of population over 70
• Check UEC, CMP, FBC, urine protein
• If asymptomatic, small paraprotein < 10 g/L, age > 70, would not investigate further
• 20 percent chance of myeloma over 2010-15 years
• Only treat myeloma if “related organ or tissue injury” ROTI) e.g. “CRAB” (Calcium elevation, Renal insufficiency, Anaemia < 100g/L or 2 g/L drop from baseline, Bones, lytic lesions)
• Selectivity in patients in whom do BM biopsy/skeletal survey
Approach to paraproteins
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Which patients with paraproteins should be referred to a haematologist?
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LOVV RISK GROUP • • • • • •
lgG M protein < 15 g/I lgA M protein < I 0 g/I Asymptomatic No other abnormal results BJ P positive or negative Uninvolved immunoglobulins low or normal
Follow up by non-haematologist:
HIGH RISK GROUP •
•
•
• • •
Symptomatic of suspected myeloma or lymphoprol iferative disorder Abnormal physical signs suggestive of underlying plasma cell or lymphoprol iferative disorder Unexplained abnormal investigation results (blood or X-ray) lgG M-protein > 15 g/1 lgA M-protein > I 0 g/1 Any lgD or lgE M-protein irrespective of concentration
• Repeat serum or urine electrophoresis every 3-4 months and extend interval to 6-12 months if stable and no symptoms
Clinical concern during follow up • Refer to
Haematologist for investigation and
management • Supply patient with
information leaflet
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Abnormalities with a low probability of underlying haematolgical malignancy
Abnormality Comment
Isolated neutropenia Isolated >1.0 rarely significant
Isolated mild neutrophilia Total WCC < 15 usually chronic infection, inflammation, steroids
Isolated mild thrombocytopeniaIf isolated, investigate if < 100. Think of chronic liver disease,
exclude HIV
Hb 100-120 g/L Check haemotinics, TFTs, renal function
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Don’t over treat…
• Chronic lymphocytic leukaemia
• Follicular B cell lymphomas
• Multiple myeloma (indolent or “smouldering”)
• Essential thrombocythaemia
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Don’t do fine needle biopsies of lymph nodes
• Insufficient material for biopsy of lymphomas
• Will miss Hodgkin lymphoma
• Excision biopsy or core minimum
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Don’t do routine followup CT scans in patients with lymphoma who achieve CR• most patients have obvious relapse based on
signs, symptoms and blood tests
• relapse commonly occurs between visits and/or scans
• “background noise” of CT and PET scans expose patients to the risks of “overdiagnosis”
• no evidence of improved outcome with “surveillance scans”
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Do…
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Refer urgently patients with a high probability of acute leukaemia/high grade
lymphoma• Obvious significant lymphadenopathy e.g. > 2 cm,
mediastinal mass
• Blasts on blood film
• Significant pancytopenia e.g. platelets < 50 X10^9/L, Hb < 100 g/L , neutrophils < 1.0 X 10^9/L unless other explanation e.g. chronic liver disease/portal HT
• Other triggers for urgent referral: hypercalcaemia, high LDH
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Suspect cord compression
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Suspect thoracic inlet obstruction
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Fever and rash…
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Treat fever in neutropenic or immunosuppressed patients urgently
• Neutrophils < 1.0 = neutropenia
• In practical terms, treat any patient who is significantly immunosuppressed (recent chemotherapy, previous transplant, hyposplenic) the same way
• Urgent IVI antibiotics with cover for Pseudomonas (and pneumococcus in the hyposplenic patients)
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…be aware of nonbacterial infectious complications
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…give prophylaxis for patients with HBsAg and/or HBcore antibodies who are
immunosuppressed
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Exotic infections
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Rash post allogeneic stem cell transplant
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Post transplant• Revaccination at 6-12 months if off all immunosuppression and no GVHD
• Tetanus-diphtheria toxoid
• Haemophilus influenzae b conjugate (Hib)
• Pneumococcal vaccine (PPV23) (note second dose at 24 months)
• Inactivated polio vaccine (IPV)
• Hepatitis B vaccine
• 14 months post transplant
• Tetanus-diphtheria toxoid
• Haemophilus influenzae b conjugate (Hib)
• Inactivated polio vaccine (IPV)
• Hepatitis B vaccine
• 24 months post transplant
• Tetanus-diphtheria toxoid Haemophilus influenzae b conjugate (Hib)
• Pneumococcal vaccine (PPV23)
• Inactivated polio vaccine (IPV)
• Hepatitis B vaccine
• Influenza vaccine is given annually starting > 6 months after stem cell transplantation
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Do - vaccinate (care with live vaccines)
• Pneumococcal and influenzal vaccines for patients with CLL, myeloma and related disorders
• Identify and vaccinate surgically and functionally asplenic patients
• Revaccinate patients after autologous or allogeneic stem cell transplant (6-12 mo after and off immunosuppression) -avoid live vaccines
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Hyposplenic patients• Initial vaccinations:
• Prevenar-13 IMI (= Pneumococcal Conjugate vaccine 13-valent) 0.5 ml IMI (not repeated)
• Menactra (= 4-valent Meningococcal Conjugate vaccine) (first dose) 0.5 ml IMI
• Hibirix 0.5 ml IMI (not required if had previous HiB vaccination)
• 8 weeks later:
• Pneumovax-23 (= Pneumococcal polysaccharide vaccine 23-valent) 0.5 ml IMI (repeat every 5 years)
• Menactra (= 4-valent Meningococcal Conjugate vaccine)(second dose) 0.5 ml IMI
• +/- Bexsero (group B meningococcal vaccine)
• Annual Fluvax 0.5 ml IMI
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…be vigilant for long term complications of therapies in haematology
• Second malignancies (esp breast, skin, lung, thyroid) in irradiated fields esp Hodgkin lymphoma and primary mediastinal lymphomas
• Hypothyroidism (neck radiation)
• Cardiovascular effects of anthracyclines and cardiac radiation
• Nilotinib (CML): increase in metabolic syndrome & need for tight control of risk factors
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