Oncology emergencies Flashcards
Liquid/blood cancers include
leukemia, lymphomas, plasma cell disorders (multiple myeloma)
Cancer treatment options (7)
- Hormone therapy
- Surgery - primarily for solid cancers
- Bone marrow transplantation
- Chemotherapy
- Targeted therapy
- Radiation therapy
- Immunotherapy
Where do malignancies originate from?
Hemopoietic (blood producing cells) in the bone marrow –> myeloid stem cells OR lymphoid stem cells
What are myeloid neoplasms?
MDS, AA, AML, CML
What are lymphoid neoplasms?
acute lymphocytic leukemia, multiple myeloma, and lymphomas
What is acute leukemia?
Abnormal production of immature blood cells (blasts) that cannot carry out normal function so they multiply rapidly and gum up the system
Is acute leukemia fast?
Yes, it worsens quickly so it requires very aggressive and timely treatment
How do you diagnose acute leukemia?
- Peripheral blood tests - see blasts
- Bone marrow biopsy
- Lumbar puncture and imaging
S/S of acute leukemia include?
Systemic: Weight loss, Fever, Frequent Infection, Fatigue, Loss of appetite
Lungs: SOB
Muscles: weak - d/t anemia
Bone and joints: pain and tenderness d/t bone marrow crowded
Swollen lymph nodes
Enlargement of spleen or liver –> decrease appetite and easily full
Skin: Night sweats, easy bleeding and bruising, petechiae
AML s/s include
Fatigue, DIC, bleeding
Generally presents sicker
ALL s/s include:
hepatosplenomegaly
Lymphoid linage: B symptoms: unintentional weight loss, drenching night sweats, fever of unknown origin, painless lymphadenopathy (swollen lymph nodes)
How do you treat acute leukemia?
With chemotherapy
What is the induction phase of chemotherapy?
- Initial chemotherapy
- Meant to induce remission
- Response to induction can predict outcomes/responses to future treatment and prognosis
What is the consolidation phase of chemotherapy?
- Goal is to eradicate disease to below the level of detection
- Can be done with chemotherapy or stem cell transplant
What is the maintenance phase of chemotherapy?
- Lower doses of treatment for prolonged periods of time to improve chances of cure
- 5 years out from remission - kind of a cure but don’t use word often
What should you watch for doing induction and consolidation phase of chemo?
monitor s/s of anemia, thrombocytopenia, and neutropenia
What is chronic leukemia?
- No blasts
- Very high WBC count
- Very slow progression
- Patients are not usually aware that they have it
Chronic lymphocytic lymphoma (CLL) s/s include
B-symptoms, early satiety, increase risk of infection
Should you be worried about the very high WBC in CLL?
no, not really. Patient is generally fine until you see blasts which could indicate acute leukemia
Do patients with CLL have hyperkalemia?
They usually sit at the upper end of normal. The lab tests may give falsely high potassium levels because there is a lot of large WBC that are bumping into things and breaking things a part. Need a whole blood sample to determine actual potassium level
What is CLL treated with?
BTK-inhibitors (ibrutinib or acalabrutinib)
BCL-2 inhibitors (venetoclax)
** both pills that are taken on and off during life time or a low dose every day
Chronic myelogenous leukemia (CML) s/s include
weakness, fatigue, SOB, fevers, bone pain
How is CML treated?
Tyrosine Kinase Inhibitors (TKI) like ponatinib, imatinib, nilotinib
** pills taken daily
What is the biggest issue for keeping chronic leukemias under control?
medication adherence.
Nurses should make sure patents are not having severe SE that are intolerable and stopping them from taking their pills and that they have a good regimen for taking them to ensure that they are taking they. If chronic leukemias grow out of control, it can turn into acute leukemia that requires aggressive interventions
What are the two types of lymphomas?
- Hodgkins
2. Non-hodgkins
What is the difference between hodgkins and non-hodgkins?
Hodgkins: have reed-Sternberg cells and are considering the most treatment responsive cancers.
Non-hodgkins: huge diversity of lymphomas. B cell NHL is most common. T/NK are less common. Much more aggressive so prognosis and treatment will vary.
What is lymphoma?
- Type of cancer that arises in the lymphocyte (infection fighting cell)
- Lymphoma develops when B, T, or NK cells transform from healthy cells into malignant cells.
- Lymphomas can be B cell lymphomas (most common), T cell lymphoma or T/NK lymphoma (rare)
What is a lymphocyte? How do they circulate? What are the three types? When do they multiple?
WBC made in bone marrow
Circulate throughout the body in the blood and lymphatic system
B, T, and NK
Multiple in presence of bacteria or other invaders
S/S of B cell lymphoma include? (9)
- Enlarged lymph nodes
- Cough
- Enlarged liver and spleen
- Nephrotic syndrome
- Night sweats
- Itching
- bone marrow involvement
- Fever of unknown origin
- Early satiety –> weight loss
How do you diagnose lymphoma?
- Lymph node biopsy - MUST
- PET/CT
- Peripheral labs
- Bone marrow biopsy
Treatment of lymphoma includes..
- Immunotherapy
- Chemotherapy
- Radiation to specific sites
- Stem cell therapy
- CAR-T cell therapy
What do you see on a MRI/CT with lymphoma and multiple myeloma?
hot spots SPG lymphocytes
Helps stage patients later and determine if patient is responding to treatment
What are you looking for in peripheral labs with lymphoma?
Viral lab: HIV
When do you do a bone marrow biopsy with lymphoma
If not sure where patient is going to stage
What treatment should you do at first relapse of ALL?
CAR-T cell therapy
What is multiple myeloma?
- Cancer that forms in a plasma cell
- Cancerous plasma cells accumulate in the bone marrow and crowd out healthy blood cells.
- The plasma cells make n abnormal protein/antibody
What is a plasma cell?
Type of WBC
What do plasma cells do?
they help you fight infections by making antibodies that recognize and attack germs
What is the abnormal protein/antibody plasma cells in multiple myeloma called?
monoclonal immunoglobulin, monoclonal protein (M-protein), M-spike, or paraprotein
S/S of multiple myeloma?
C - high calcium R - renal problems (AKI) A - anemia (low hemoglobin) B - bone problems (fracture) I - infection
How do you diagnosis multiple myeloma?
- Peripheral lab for myeloma markers (Serum free light chains, immunoglobulins, M protein)
- Bone marrow biopsy
- PET/CT imaging
What is the treatment for multiple myeloma?
- Not curable
- Goal: longest and deepest remission possible
- Therapy including immunotherapy, radiation, chemotherapy, stem cell transplant and CAR-T cell therapy
What is stem cell transplant?
process of administering CD 34 positive cells into host after a preparatory chemo regimen
What is the process of stem cell transplant?
- Eradicate disease with a very high dose of chemotherapy and likely radiation at the same time
- Revive the patient by administering stem cells and/or initiating graft venous disease effect
What is the goal of stem cell transplant?
To have a new healthy and effective immune system and functional bone marrow that is providing anew hematopoiesis process
Where do the stem cells come from?
- Autologous - from self
2. Allogeneic - from others
What is the process of autologous stem cell transplant?
Take the patients own stem cells. –> store them –> give them back to the after a huge dose of chemo
What is the allogeneic stem cell transplant process?
Donor stem cells –> infused CD34 positive cells into the host –> fight the leukemia or lymphoma
Where can allogeneic stem cells come from?
- Match related donor (bother or sister) - Sib allo
- Matched unrelated done - MUD allo
- Cord (fetal umbilical cord blood cells) - dual cord
- Syngeneic (identical twin)
- Halo-identical (1/2 matched donor)
Major complications of stem cell transplant: Sinusoidal obstructive syndrome
- Gumming up of the liver
2. Given actigol or ercidial at same time decreases the risk
Major complications of stem cell transplant: graft vs. host disease (GVHD)
When donors T cells (the graft) attack and damage the patients healthy T cell because it sees them as foreign
Can be mild, moderate, or severe and life threatening
What is acute GVDH and how do you treat it?
- Occurs within the first 100 days
- Increased immunosuppressive therapy like corticosteroids (puts patient at increased risk for infection and osteoporosis)
What is choleric GVHD?
occurs more than 100 days after transplant
Can involve one organ or multiple.
Leading cause of medical problems and death after an allogeneic stem cell transplant
What are autologous stem cell transplant use for?
- Lymphoma
- Multiple Myeloma
- CLL
- Amyloidosis (falls under multiple myeloma)
- Some autoimmunedisorders
- Testicular
- Neuroblastoma
What are allogeneic stem cell transplants used for?
- ALL / AML / MDS
- Some refractoryLymphomas
- PNH
- CML/CLL** try not to**
- Sickle cell disease
- Some autoimmunedisorders
- Myelofibrosis
- Aplastic Anemia
Where do all of the lymphoid lineage cancers start?
They start at the naive B cell
A lot of opportunities to differentiate and become cancerous
CAR-T therapy (chimeric antigen receptor T therapy)
- Autologous process
- Take a patients own T cells and modifies them by adding a chimeric antigen receptor which is designed to recognize and bind to the specific tumor-associated antigen on the surface of the antigen-expressing cells and then the T cell releases cytokines and injects the cancer cell leading to apoptosis
What is CAR-T cell therapy currently used in?
Multiple Myeloma
Lymphoma
Relapsed ALL (Acute Lymphocytic Leukemia)
Cytokine release syndrome (CRS)
- Occurs in the over activation of the immune system –> supra physiological response –> a ton of cytokines being released and IL-6 playing a central role
What are the symptoms of CRS?
- Mimic sepsis
- Fever
- Hypotension
- Hypoxia
- End organ dysfunction