Hemo/Oncology Flashcards
Myelodysplastic Syndrome (MDS)
- Pre-leukemia
- Problem w/ common myeloid progenitor cells
- Pancytopenias
- 33% transform to AML
Incidence of MDS
- Median age 65-70
- M>F
S/S of MDS
- Symptoms of cytopenias
- Splenomegaly
What are the goals of MDS Management?
- Control symptoms
- Improve quality of life
- Prevent progression to AML
How is MDS managed?
- Supportive Care
- Blood transfusions
- Erythropoietin
- Chemotherapy
- Decitabine
- 5-azacytidine
- Stem Cell Transplant (BMT)
Types of Leukemias
- Acute Lymphoblastic Leukemia (ALL)
- Acute Myelogenous Leukemia (AML)
- Chronic Lymphoblastic Leukemia (CLL)
- Chronic Myelogenous Leukemia (CML) – Philadelphia Chromosome – 95%
Acute Myelogenous Leukemias
- Acute (fast & immature)
- Prolonged cell division →
- Maturation failure
- Too many immature WBC
- Crowd out bone marrow and “spill” into circulation
- Blast crisis
- Accounts for ≈ 1.2% of all new cancer cases
- ≈ 1.8% of all cancer deaths
- Five year survival ≈ 26.6%
- Prolonged cell division →
Chronic Myelogenous Leukemias
- Chronic (slow & mature)
- Myeloproliferative disorder
- Too many mature WBS
- Philadelphia Chromosome
- bcr-abl: a gene made by the Philadelphia Chromosome
- Accounts for ≈ 0.5% of all new cancer cases
- ≈ 0.2% of all cancer deaths
- Five year survival ≈ 65.1%
- Myeloproliferative disorder
Acute Lymphocytic Leukemia
- Most common type of leukemia in young children
- Accounts for ≈ 0.4% of all new cancer cases
- ≈ 0.2% of all cancer deaths
- Five year survival ≈ 68.1%
Chronic Lymphocytic Leukemia
- Most common chronic adult leukemia
- Accounts for ≈ 1.1% of all new cancer cases
- ≈ 0.8% of all cancer deaths
- Five year survival ≈ 82.6%
Laboratory & Diagnostics Findings of Leukemia
- CBC w/ differential
- ↑↑↑ WBC
- Blast %
- Peripheral blood smear
- Presence of blasts
- Presence of malignant cells
- Bone Marrow Biopsy
- Posterior Iliac Crest
- Elevated blast %
Leukemia Management
- Dependent of type of Leukemia
- Chemotherapy Purpose?
- Clean out marrow
- Achieve remission?
- Relapse? Refractory?
- Bone marrow transplant
- Splenectomy
- *Antibiotics*
- Serial monitoring for life
- Neupogen or Neulasta to regenerate BM after ablation
Chemotherapy Classes
Alkylating Agents
Antimetabolite Agents
Others
Alkylating Agents
- Alkylating Agents 1: Nitrogen Mustards
- Alkylates and crosslinks DNA
- Ex: cyclophosphamide, ifosfamide, melphalan
- Alkylating Agents 2: Nitrosoureas
- Alkylates and crosslinks DNA
- Ex: lomustine, carmustine, streptozocin
- Alkylating Agents 3: Platinum Analogs
- Binds and crosslinks DNA
- Ex: cisplatin, carboplatin, oxaliplatin
- Alkylating Agents 4: Other
- Alkylates and crosslinks DNA
Antimetabolite Agents
- Antimetabolite Agents 1: Folate Analogs
- Inhibits lymphocyte proliferation
- Ex: methotrexate, pemetrexed, pralatrexate
- Antimetabolite Agents 2: Purine Analogs
- Inhibits DNA synthesis
- Ex: clofarabine, cladribine, fludarabine, mercaptopurine, thioguanine, pentostatin
- Antimetabolite Agents 3: Pyrimidine Analogs
- Induces DNA hypomethylation – restores cellular control
- Ex: cytarabine, decitabine, fluorouracil, gemcitabine, azacitidine,
- Antimetabolite Agents 4: Other
- Inhibits ribonucleotide reductase, immediately inhibiting DNA synthesis
- Ex: hydroxyurea
Other Chemo Classes
- Kinase Inhibitors
- Ex: imatinib (Gleevec), ibrutinib (Imbruvica)
- Differentiating Agents
- Ex: arsenic trioxide (used in APL)
- Antitumor Antibiotic (Anthracyclines) – think cardiotoxicity!!!
- Doxorubicin
- Antitumor Antibiotics (Others)
- mitoxantrone, bleomycin
Combination therapy
- Given in divided doses per cycle
- Treatment is measured in similar fashion:
- “P.R. is a 73 year old ♂ with relapsed/refractory AML, currently on C2D15 of vidaza/busulfan/arsenic.”
Potential Nursing Dx for Leukemias
- Pain r/t overactive bone marrow AEB leukocytosis
- Altered Immunity r/t effects of chemotherapy AEB leukopenia
- Risk for injury r/t tumor lysis syndrome AEB declining renal function, hyperkalemia, hyperphosphatemia, and uric academia
- Risk for injury r/t fatigue and other chemotherapeutic effects
- Risk for Infection r/t deficient immunity AEB leukopenia
- Pain r/t stimulated bone marrow
- Knowledge Deficit
- Impaired Family Coping
Nursing Interventions
- Coordinate care to reduce traffic in and out of room
- Provide safe environment, reduce risk for falls, call button w/in reach, bedside toileting, adequate lighting
- Encourage deep breathing and UOB and/or use of incentive spirometer
- Auscultate breath sounds
- Examine skin for breakdown
- Encourage good oral care
- Prohibit live plants/flowers
- Restrict fresh fruits and only allow fruits with thick skin
- Change IV tubing according to hospital policy
- Change central line dressings according to hospital policy
Lymphomas
Hodgkin’s Lymphoma
and
Non-Hodgkin’s Lymphoma
Stages of Lymphoma
Stage I Lymphoma
- Disease is localized to single lymph node or group of nodes
Stage II Lymphoma
- Multiple lymph nodes or groups of nodes
- Confined to 1 side of diaphragm
Stage III Lymphoma
- Spleen involvement and/or
- Lymph nodes on both sides of diaphragm
Stage IV Lymphoma
- Liver or bone marrow involvement
Hodgkin’s Lymphoma
- Aka Hodgkin’s disease
- malignat condition charachterized by proliferation abnormal gian, multinucleated ccells, called Reed-Sternberg cells, which are located in lymph nodees
Hodgkins Lymphoma I & P
- M>F, Bi-modal age onset:
- avg age: 28
- Less common peak: 55
- Accounts for ≈ 0.5% all new cancer cases
- ≈ 0.2% of all cancer-related deaths
Hodgkin’s Lymphoma adenopathy
- Cervical & Mediastinal
- Spreads in a predictable fashion
- Uncommonly found outside of lymph nodes (4%)
- Reed sternberg cells
Non-Hodgkin’s Lymphoma
heterogeneous group of malignant neoplasms of primarily B-, T-, or natural killer (NK) cell origin affecting all ages
Classifications
- B-cell
- T- cell
- Natural Killer (NK)
B- Cell Lymphomas
about 85%
- Follicular B Cell
- Mantle Cell
- Marginal Zone
- Interfollicular
- Burkitt’s - most highly aggressive
- Diffuse Large B Cell - most common aggressive lymphoma
- Primary Effusion