oncological emergencies

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ONCOLOGY EMERGENCIES

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Page 1: Oncological Emergencies

ONCOLOGY

EMERGENCIES

Page 2: Oncological Emergencies

Oncological Emergencies

May be presenting feature of cancer

Can occur in patients with curable disease or those suitable for long term palliation

Most emergencies are similar in presentation and management to “standard” medical emergencies

However they may be complicated by side effects of chemotherapy (e.g. renal/liver/bone marrow impairment)

Page 3: Oncological Emergencies

1. Pulmonary embolism

Page 4: Oncological Emergencies

51 year old women

6 month history of stage III ovarian cancer

Day 10 cycle 2 of carboplatin / taxol chemotherapy

2 days previously commenced on salbutamol inhaler by GP for wheeze

Now has: • Pleuritic right chest pain

• Dry cough

• Shortness of breath when walking

Page 5: Oncological Emergencies

On Examination

Centrally cyanosed

Distressed by pain on deep breathing

Temperature : 37.5 oC

Pulse rate : 120 bpm

Respiratory rate : 25 per min.

Blood Pressure : 110/65 mmHg

No leg swelling

Page 6: Oncological Emergencies

On Examination

JVP : Elevated 3cms

Heart sounds : Gallop rhythm

“Creaking noise” at right lung base

Mild wheeze bilaterally

No crepitations

Breath sounds vesicular

Page 7: Oncological Emergencies

Investigations

FBP: White cell count elevated –

Neutrophils: 16 x109/l (n: 2.0-7.5)

U+E: Normal

Arterial Blood Gas:

• PO2 : 7 kPa (n: 10-14)

• PCO2 : 3 kPa (n: 4-6)

• pH : 7.5 (n: 7.25-7.35)

Page 8: Oncological Emergencies

COAG Screen

D-Dimer: 4.0 (n: < 0.5)

Other coagulation factors normal

Page 9: Oncological Emergencies

Chest X-Ray

Page 10: Oncological Emergencies

ECG Findings

Page 11: Oncological Emergencies

Important to rule out this!

Page 12: Oncological Emergencies

CT Chest

Page 13: Oncological Emergencies

Pulmonary

Angiogram

Page 14: Oncological Emergencies

Management

Oxygen: 100%

Commence Low Molecular Weight Heparin (e.g. Enoxaparin)

Consider either: • Commencing warfarin after 24 hours

Or

• Long term LMWH

If haemodynamically unstable then thrombolysis via pulmonary arterial catheter

Page 15: Oncological Emergencies

Summary – Pulmonary Embolism • Cancer patients are more prone to PE as they can be in a

HYPERCOAGULABLE state. This can be due to cancer related blood constituent changes or pressure on vessel walls causing stasis/altered blood flow

• Active cancer is on the WELLS score criteria for DVT

• Symptoms: – SOB

– Pleuritic chest pain

– Dry cough

– May have calf pain/swelling

• Signs – Raised JVP

– Tachycardia and tachypnoea, S1Q3T3

– “gallop rhythm” – high output states

– Peripheral/central cyanosis

– Vesicular breath sounds in most areas

Page 16: Oncological Emergencies

Summary – Pulmonary Embolism • Investigations

– ABG: decreased PaO2, decreased PaCO2 (due to reduced ventilation), can cause respiratory alkalosis

– ECG: right heart strain S1Q3T3. rule out MI

– D-dimer: raised (non-specific)

– CTPA/VQA scan: identify non-perfused part of lung

– CXR: wedge infarct

• Treatment: – Oxygen therapy

– Enoxaparin 1.5mg/kg/day

– Consider starting warfarin for 6m

– Analgesia: NSAIDs

– ENOXAPARIN works best for cancer patients

Page 17: Oncological Emergencies

2. Spinal cord compression

Page 18: Oncological Emergencies

Spinal Cord Compression

• Mechanism

– Lymphoma – mediastinal or retroperitoneal nodes or mets from vertebral bodies

• Symptoms

– Back Pain – syndrome insidious

– Paraplegia – bowel and bladder dysfunction

– 12 – 24 hr progression

– Permanent when completed

Page 19: Oncological Emergencies

Spinal Cord Compression

• Diagnosis

– Myleogram or MRI

• Treatment

– Steroids

– Decompression Laminectomy

– Chemotherapy

– X- ray therapy

Page 20: Oncological Emergencies
Page 21: Oncological Emergencies

Case: 62 Year old man

Locally advanced prostatic carcinoma 4 years previously – treated with radiotherapy and hormones

Relapsed disease 1 year ago now receiving combined anti-androgen (Bicalutamide) and LHRH agonist (Goserelin) treatment for elevated PSA

Over past 4 days:

• Increasing back pain and falls at home

• Constipation and urinary retention for 3 days

• Commenced on MST 30mg b.d by GP

Page 22: Oncological Emergencies

On Examination

Orientated but distressed by pain

Tone in legs: ↓

Power in legs: 4/5 bilaterally

Sensation: ↓ in saddle area

Anal tone: ↓

Reflexes : ↓ bilaterally

Plantars: equivocal

Page 23: Oncological Emergencies

Lab tests

FBP :

Hb : 9.8g/dl

(12-18)

WCC : 2.0x109/l

(4.0-10.0)

Plts : 90x109/l

(150-450)

U+E :

Na+ : 145 mmol/l

(135-145)

K+ : 4.5 mmol/l

(3.5-5.0)

Ca2+: 2.4 mmol/l

(2.2-2.65)

Alb : 20 g/dl

(35-45)

Page 24: Oncological Emergencies

MRI of SPINE

Page 25: Oncological Emergencies

Management

Bed rest

Catheterise

Dexamethasone 8 mg

b.d. intravenously/orally

Consider urgent surgical

decompression or

radiotherapy

Analgesia : NSAID +/-

opioid

Consider Ranitidine or a

proton pump inhibitor

(omeprazole) for gastro-

protection, especially if

NSAID used

Page 26: Oncological Emergencies

Subsequent results

Patient had Emergency Radiotherapy – 20Gy in 5

fractions over 5 days

Prostatic specific antigen (PSA): 100u/ml

Isotope bone scan: multiple hot spots throughout

skeleton

Later received I.V. Samarium for analgesic

purposes

Page 27: Oncological Emergencies

Radiotherapy Treatment Field

Page 28: Oncological Emergencies

Positive bone scan:

Prostate Cancer

Page 29: Oncological Emergencies

MSCC: Refer for surgery if…

Survival likely to be over 3 months

Unknown primary requiring tissue diagnosis

Previous radiotherapy to spine

Bone fragment compressing spinal cord

Single site of compression and no systemic disease

Page 30: Oncological Emergencies
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Summary – Spinal cord compression • Bone involvement from cancer LBTKP

– Commonly: lung, breast, lung, myeloma, lymphoma – Less common: thyroid, kidney, bladder, bowel, melanoma

• Can be initial presentation of malignancy: prostate, breast, myeloma

• Crush fracture or tumour extension common • Occasional intramedullary METS • 66% cases: thoracic cord • Symptoms:

– Back pain: within a nerve root, worse on coughing/straining – Saddle anaesthesia – Urinary retention/dribbling/incontinence – late – Constipation/dribbling/incontinence of faeces – late – Loss of power and sensation distal to area of obstruction – Limb weakness/unsteadiness when walking – Brisk reflexes early, absent reflexes late

Page 33: Oncological Emergencies

• Signs: – Reduced tone in legs – Reduced reflexes late. Brisk early. – Decreased power and sensation – Reduced anal tone – Upgoing plantars (late)

• Investigations – MRI whole spine – Bone scan (radioisotope) – If no Hx of malignancy, investigate for malignancy – CT chest/abd/pelvis

• Management – Bed rest and catheter – DEXAMETHASONE 8MG BD IV/PO – Analgesia – Surgery or radiotherapy to METS (20Gy in 5fractions over 5days)

• Indications for surgery: survival likely >3m, single site compression, no systemic disease, previous radiotherapy to spine, unknown 1o requiring Dx, bone fragment compressing cord, no response to steroids, no cancer

Summary – Spinal cord compression

Page 34: Oncological Emergencies

Cauda Equina Syndrome • Tumours below L1/L2 level

• Symptoms: – Bilateral sciatic pain

– Bladder dysfunction (retention/incontinence)

– Impotence

– Saddle anaesthesia

– Loss of anal sphincter tone – MUST DO PR EXAM!!!

– Weakness and wasting of gluteal muscles

• Diagnosis by MRI spine

• Rx: dexamethasone 8mg IV BD, RT, Sx

Page 35: Oncological Emergencies

3. Neutropenic sepsis

Page 36: Oncological Emergencies

25 year old man

History of testicular teratoma

Currently day 14 cycle 2 of BEP chemotherapy

2 day history of sore throat

Admitted with history of collapse at home; found by

parents unrousable

Page 37: Oncological Emergencies

On examination

Drowsy, incoherent

Cold peripheries

Temperature: 36 oC

Pulse: 134 bpm low volume

Blood pressure: 75/35 mmHg

Hickman line in situ

Chest: clear

Abdominal examination: normal

Page 38: Oncological Emergencies

Immediate management

Oxygen by mask

Get peripheral intravenous access: take blood for : FBP/U+E/Bacterial culture/GP and hold

Commence intravenous fluids eg colloid/crystalloid

Cultures from : Hickman line, urine, throat, diarrhoea if present

Monitor urinary output by catheter (keep >30mls/hr)

Commence broad spectrum antibiotics

Page 39: Oncological Emergencies

Continued management

FBP :

Hb : 10.1g/dl

(12-18)

WCC : 0.4 x109/l

(4.0-10.0)

Plts : 113x109/l

(150-450)

ANC: 0.1 X 109/l

(2.0-7.5)

U+E :

Na : 134mmol/l

(135-145)

K : 3.5mmol/l

(3.5-5.0)

Urea: 13.7mmol/l

(3.3-8.8)

Creat: 167mmol/l

(40-110)

Blood cultures: E Coli

Urine Culture: E Coli

Page 40: Oncological Emergencies

Continued management

Continue with broad spectrum antibiotics, with an

aminoglycoside included

• (BCH policy TAZOCIN and Gentamicin)

Commence Granulocyte Colony Stimulating Factor

(GCSF) to raise neutrophil count over 1.5x109/l

• E.g. Filgrastim (Neulasta®) 30 million units s.c. daily

Prophylactic GCSF next cycle of treatment

Page 41: Oncological Emergencies

Result

Recovered fully from infection

Further 2 cycles of BEP uneventful

Now disease free for 3 years and well

Page 42: Oncological Emergencies

Summary – Neutropenic Sepsis • Chemotherapy can cause bone marrow suppression, leading to pancytopenia.

The reduction in WCC (neutropenia) leaves the patient at risk of developing infections. This can quickly lead to sepsis and septic shock

• Cannot judge sepsis by temperature!!!

• Symptoms and Signs: – Drowsy, decreased level of consciousness, confusion

– Cold peripheries

– Tachycardia

– Hypotension

– May be signs of infection e.g. cough in chest infection

• Investigations: – Cultures: blood, urine, throat, current lines (hickmans, catheter)

– Venous access, IV fluids: colloids

– Catheter to monitor urinary output

– Oxygen

– IV Abx in accordance with hospital guidelines

– Granulocyte Colony Stimulating Factor (CGSF) if haemodynamically unstable/slow response

– Give GCSF prophylactically with next dose of chemo

Page 43: Oncological Emergencies

4. Hypercalcaemia

Page 44: Oncological Emergencies

Hypercalcaemia

• Mechanism – Mets to bone, breast, lung, renal

– Myeloma

– Ectopic parathyroid hormone production

• Symptoms – Nausea

– Vomiting

– Constipation

– Urinary frequency

– Lethargy

– Confusion

– Coma

– Death

Page 45: Oncological Emergencies

Hypercalcaemia

• Diagnosis

– Serum Calcium level - correct for albumin

• Therapy

– Hydration - saline

– Diuresis - Lasix

– Mithramycin

– Steroids

Page 46: Oncological Emergencies
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Page 48: Oncological Emergencies

Case: 54 year old female

1 year ago treated for non-small cell lung

cancer right side

Pneumonectomy and Radiotherapy to

right lung field

Well until 7 days ago

Page 49: Oncological Emergencies

Symptoms

7 day history of general aches :

commenced on MST 20mg bd by GP

5 day history of thirst, polyuria and

constipation

4 day history of confusion

Page 50: Oncological Emergencies

On Examination

Uncooperative

Dehydrated

Temp: 37.0oC

Blood pressure : 90/60mmhg pulse 120bpm

No obvious neurological deficit

Abdominal exam: Indentable mass left iliac fossa

Page 51: Oncological Emergencies

Lab tests and investigations

U+E

Na 154mmol/l (135-145)

K+: 6.0 mmol/l (3.5-5.0)

Ca 3.0mmol/l (2.10-2.60)

Alb 18g/dl (40)

FBP

normal

Glucose: 3.3mmol/l

Urine specific gravity: 1.050

ECG: Decreased QT interval.

Page 52: Oncological Emergencies

Management

Immediate rehydration 4-6 litres N.saline

over 24 hours

Ensure urinary output>30ml/hr

After 24 hours give intravenous

bisphosphonate:

• eg Zolendronic Acid (ZOMETA®) 4mg

Page 53: Oncological Emergencies

Further Investigations

CXR : mass right hilum

Isotope bone scan: no bone mets

CT scan : mass right hilum, new liver

metastases

Page 54: Oncological Emergencies

Outcome

Not fit enough for chemotherapy

Cared for at home by hospice homecare

Managed with regular oral bisphosphonates,

non steroidal anti-inflammatories and MST

20mg b.d

Died at home 2 months later

Page 55: Oncological Emergencies

Hypercalcaemia of Malignancy

Particular Association with: • Breast cancer

• lung cancer (especially non-small cell)

• multiple myeloma

• prostatic cancer

Affects 20-40% of all patients with advanced cancer

3 Mechanisms: 1. Parathyroid hormone-related protein

2. Local osteolysis due to bone metastases.

3. Tumour production of Vitamin D metabolites.

Barri Y et al. Hematol Oncol Clin North Am, 10(4):775-90

Page 56: Oncological Emergencies
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Summary – Hypercalcaemia • Common malignancy related causes:

– Parathyroid hormone related protein

– Local osteolysis due to bony metastasis

– Tumour producing Vitamin D metabolites

• Commonly seen with BREAST, LUNG (nonsmallcell), multiple myeloma and prostate

• Affects 20-40% pts with advanced cancer

• Signs and Symptoms: – Bones: bone pain, pathological fractures

– Stones: polyuria, polydipsia, kidney stones

– Moans: confusion, depression, decreased level of consciousness/coma

– Groans: constipation, pancreatitis, epigastric pain

• Investigations: – U&E: Na and K raised due to dehydration, calcium RAISED >2.6

– Cause unknown: CTCAP, CXR,

– ECG: decreased QT interval

• Management – 4-6l saline over 24hrs

– IV bisphosphonates e.g. zolendrenic acid

– Catheter to monitor urine output

Page 61: Oncological Emergencies

Corrected Calcium

• Corrected calcium is calculated from the measured calcium. Calcium is bound to albumin so the amount of measured calcium depends on the level of albumin. Corrected calcium estimates the calcium level if the albumin was within the normal range.

• Corrected calcium = measured calcium + (40-Alb) x 0.02

• E.g. Ca 3.46, Albumin 28 – Corrected calcium = 3.46 + (40-28) x 0.02 = 3.46 + 0.24

= 3.7 mmol/l.

Page 62: Oncological Emergencies

Differential Diagnosis of thirst, polyuria, constipation

• Diabetes mellitus

• Diabetes insipidus

• Hypercalcaemia

• Hypernatraemia

• Psychogenic polydipsia

Page 63: Oncological Emergencies

5. Raised ICP/

Brain metastases

Page 64: Oncological Emergencies

Increased Intracranial Pressure

• Mechanism – Primary Brain Tumor – Metasitic Tumor – Meninges

• Diagnosis – Headaches – Personality Changes – Lethargy – Coma – Papilledema – Stiff neck – Fixed pupil – tentorial herniation – CT/MRI of Brain – LP - cells

Page 65: Oncological Emergencies

• Treatment

– Steroids

– Crainotomy – primary

– Whole Brain Irradiation – 3000 r – 2 weeks

– Meningeal – MTX or ARA C IT

Increased Intracranial Pressure

Page 66: Oncological Emergencies

Case: 45 year old women

History of T2 N1 M0 grade 3 ER+ve breast cancer 4 years ago

Post-surgically had 6 cycles of FEC “100” chemotherapy followed by oral tamoxifen 20mg daily

Still taking tamoxifen

Unwell for past 2 weeks

Page 67: Oncological Emergencies

Symptoms

2 week history of irritability

Persistent nausea and vomiting

2 falls at home

No weakness, no double vision, no

headaches

Page 68: Oncological Emergencies

On Examination

Bad tempered (not in keeping with previous

character)

Apyrexic

No obvious central neurological abnormalities

Peripherally : ? Upgoing left plantar

BP : 160/110mmhg, pulse 45bpm

Page 69: Oncological Emergencies

Lab Tests

FBP: Normal

U+E and calcium: Normal

Page 70: Oncological Emergencies

CT Brain

Page 71: Oncological Emergencies

Immediate management

Dexamethasone 8mg bd intravenously/orally

Arrange cranial radiotherapy

Anti-epileptic drugs if required to control

seizures: eg carbamazepine

Advise not to drive, patient required to

inform DVLA(N.I.)

Page 72: Oncological Emergencies

Whole head Radiotherapy Field

Page 73: Oncological Emergencies

Outcome

Improved overnight on dexamethasone

Given radiotherapy over one week (20 Gray in 5 fractions)

CT scan: multiple lung and liver mets

Bone scan : multiple bone mets

Managed with MST, reducing dose of steroids and bisphosphonates until death 3 months later

Page 74: Oncological Emergencies

Brain Metastases

20-40% of patients with advanced cancer

Tenfold more common than brain primary

Overall survival 6 months

Most often associated with:

• Lung cancer

• Breast Cancer

• Melanoma

But increasing with other cancers!

Patchell RA. Cancer Investigation 1996;14:169-77

Page 75: Oncological Emergencies

Neurosurgical Intervention

Indications: 1. Solitary brain metastasis and controlled systemic

disease, especially renal cell cancer, teratoma or sarcoma

2. Unknown diagnosis (Solitary Brain lesion). May not be cancer

3. Rapidly deteriorating condition

4. Hydrocephalus (shunting)

Page 76: Oncological Emergencies

Summary – Raised ICP/Brain Mets • Raised ICP: space-occupying lesion, hydrocephalus, benign intra-cranial HTN

• Brain M increasing in prevalence since people are surviving longer with cancer

• 20-40% pts with advanced disease:

• Particularly LUNG, BREAST, MELANOMA

• Symptoms: – Headaches- worse in the morning and on stooping

– N&V – worse in morning

– Confusion, altered behaviour

– Focal neurological signs

– Seizures

• Investigations – CT brain

• Management – DEXAMETHASONE 8MG BD IV/PO: shrink mass/inflammation to reduce risk of coning

– whole brain radiotherapy if 2+ METS

– Anti-epileptics for seizures: carbamazepine

– ***can’t drive ever again OSCE!!!!!!!!!!!

– Surgery: solitary met with controlled systemic disease, unknown diagnosis need sample, rapid deterioration, hydrocephalus (shunting)

Page 77: Oncological Emergencies

6. Chemotherapy related

thrombocytopenia

Page 78: Oncological Emergencies

26 year old man

Receiving CHOP chemotherapy for stage

IIIA non-Hodgkins lymphoma

Currently day 15, cycle 3 of treatment

Admitted with severe epistaxis

Page 79: Oncological Emergencies

On Examination

Obvious nose bleed, left side

Temperature: 36oc

BP : 120/55mmHg

Multiple petechiae over trunk and limbs

Page 80: Oncological Emergencies

Petechiae

Page 81: Oncological Emergencies

Immediate management

Pressure on soft part of nose

Get IV access

Send FBP, U+E, Coag screen, D-dimer

Group and cross match 2 units

Page 82: Oncological Emergencies

Results

FBP :

Hb: 7.9 g/dl

(12-18)

WCC: 0.1 x109/l

(4.0-10.0)

Plts : 3 x109/l

(150-450)

ANC: < 0.1 x109/l

(2.0-7.5)

U+E:

Normal

Coagulation screen:

Normal

D-Dimer: 1.0

Page 83: Oncological Emergencies

Management

6 donor platelets immediately, aim to raise platelet

count over 10x109/l. (over 20 if uraemic or infected)

Transfuse 2 units packed red cells, aim to raise Hb

over 10g/dl

If required cauterise nose

If DIC : correct coagulation abnormality with fresh

frozen plasma and treat underlying cause

Page 84: Oncological Emergencies

Outcome

Bleeding stopped with platelet transfusion

Received 6 cycles of CHOP in total

Now 5 years from treatment. Well, no

evidence of recurrent disease

Page 85: Oncological Emergencies

Summary – Chemo Thrombocytopenia • Bone marrow suppression leads to thrombocytopenia, leucopenia and anaemia

• Signs & Symptoms

– Increased tendency to bleed, difficult to stop

– Petechiae

– Large haemorrhage hypovolaemic shock

• Investigations

– FBC

– Coag screen

– D-dimer: raised may indicate DIC

• Management

– Give platelets until above 10, 20 if septic

– May need packed red cells if haemorrhage

– If DIC: fresh frozen plasma required

• DIC occurs when the coagulation and fibrinolysis systems are dysregulated. This can commonly occur in lung, pancreas, stomach and prostate cancer, as well as APL. Many small clots form and are subsequently broken down. This process leads to the consumption of clotting factors and platelets leading to increased risk of bleeding.

Page 86: Oncological Emergencies

Bone Marrow Suppression • Major dose limiting factor in chemotherapy

• RBC survive 120days, platelets 8days, neutrophils 1-2days so early problems are neutropenia and thrombocytopenia

• Neutropenia particularly if line/catheter in/previous infection/open wound…

• Management of neutropenic pt: – Blood cultures (peripheral and central if line in)

– Sputum culture

– Urine analysis and culture

– CXR

– Physical exam, swabs

• Treatment: – Wide spectrum Abx e.g. IV tazocin

• Low Hb: consider packed cells, investigate cause, rule out DIC

Page 87: Oncological Emergencies

Lines

• Hickman:

– under clavicle

– Tunnel catheter

– Into subclavian vein, down to superior vena cava

• PICC:

– Peripherally inserted central catheter

Page 88: Oncological Emergencies

7. Superior Vena Cava

Syndrome

Page 89: Oncological Emergencies

SVC Syndrome

• Mechanism – Masse(s) in chest/mediastinum compress SVC

– Lymphoma

– Hodgkin's

– Lung

– Breast

• Symptoms – Facial Edema

– Periorbital Edema

– Cyanosis – speed determines collateral pattern on chest wall

Page 90: Oncological Emergencies

• Acute or sub-acute

• Increased venous pressure

• Facial oedema, plethora

• Dilation of veins on chest wall and neck

• Development of collateral veins

• Moderate to severe resp distress

• Conjunctival oedema

Page 91: Oncological Emergencies

• CNS complaints - headache, drowsy, visual disturbances

• Dyspnoea

• Cough

• Cyanosis

• Chest pain

• Aggravated by changes in position - stooping / bending forward

• Dysphagia

Page 92: Oncological Emergencies

SVC Syndrome

• Diagnosis

– Chest X-ray – right sided mediastinal mass

– Radionucleotide SVC gram

– Tissue Diagnosis – may have to wait

• Therapy

– X-ray therapy – high dose

– Steroids

– Chemotherapy

Page 93: Oncological Emergencies
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• T Cell Leukaemia / Lymphoma

• Kaposi Sarcoma

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Case: 67 year old man

History of stage IV non small cell lung

cancer currently receiving Gemcitabine/

Carboplatin chemotherapy

2 day history of headache (worse when

stooping) and “puffy hands”

Page 101: Oncological Emergencies

On Examination

Plethoric face

Dilated veins over chest wall and upper

limbs

Arms and neck swollen

Page 102: Oncological Emergencies
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CXR: widening of the upper mediastinum

Page 104: Oncological Emergencies

SVC Venogram: Catheter in

external Jugular vein

Page 105: Oncological Emergencies
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Investigation

CXR: widening of the upper mediastinum

Venogram: Extrinsic compression of SVC

CT scan with contrast: dilated collateral

veins. Mass in right upper mediastinum

(investigation of choice)

Page 107: Oncological Emergencies

Management

28% Oxygen via mask

Dexamethasone 8mg i.v. b.d

Arrange urgent stenting if diagnosis is NSCLC

Consider Radiotherapy

Urgent chemotx rather than XRT if chemosensitive

tumour

Page 108: Oncological Emergencies

Outcome

Had urgent stenting and good symptomatic relief

Followed by radiotherapy to mediastum and primary tumour site

Chemotherapy discontinued as disease progression on treatment

Lived a further 5 months before dying of a right lower lobar pneumonia

Page 109: Oncological Emergencies

SVC Obstruction

Caused by:

1. Extrinsic compression due to tumour or nodes (90%) – breast cancer, lung cancer (right upper lobe), lymphoma, thymoma

2. Thrombus (10%) – central line, pacing wire.

Page 110: Oncological Emergencies

Management options

SVC Stenting if NSCLC or previous XRT

Radiotherapy

Urgent chemotherapy if chemosensitive tumour

Thrombolysis and anticoagulation if due to clot

Arke YS. Seminars in Oncology 2000;27:262-74

Page 111: Oncological Emergencies
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Summary – SVC obstruction • Obstruction of the SVC occurs commonly with lung tumours and lymphomas

which can press on SVC (right sided tumours)

• Signs & Symptoms – Raised JVP

– Puffy face and arms

– Dilated veins on chest wall

– Plethoric face

– Headache (worse on stooping), visual disturbance (papilloedema)

• Investigations – CXR: widened mediastinum/lung tumour

– SVC venogram

– CT with contrast

• Management – Oxygen

– Dexamethasone 8mg BD

– Stent/radiotherapy/chemotherapy as appropriate

• External compression: breast cancer, lung cancers, lymphoma, thymoma 90%

• Internal thrombosis: central line, pacing wire 10%

• DDx: heart failure, tamponade, external jugular vein compression

Page 113: Oncological Emergencies

Stridor • Benign or malignant causes:

– Non-malignant: foreign body, tracheal stenosis, vocal palsy

– Malignant: primary respiratory tract tumours, bronchial (carina) tumours/ thyroid, mediastinal lymphadenopathy or MET

• Signs and Symptoms – Goitre

– Weight loss

– Clubbing

• Investigations – CXR: widening of mediastinum, 1o lung cancer

– Bronchoscopy: biopsy/cytology

– CT scan

– Mediastinoscopy

• Treatment: – Dexamethasone 8mg IV BD

– Tumour debulking: radio/surgery

Page 114: Oncological Emergencies

Obstruction • Intestinal

– Pelvic cancers: ovarian 6-42%, cervical 5%, colonic 10-30%

– May be complete, subacute or functional

– Signs & symptoms: N&V, colicky pain, constipation, disyension, dehydration, projectile vomiting

– Inv: erect and supine abdominal x-ray, barium studies, MRI

– Treatment: IV fluid, NG tube, surgery/radiotherapy

• Urinary Tract – Causes: bladder, prostate, cervis, pelvic cancers

– Symptoms: asymptomayic, pain

– Inv: abdominal US, cystoscopy

Page 115: Oncological Emergencies

Misc.

Page 116: Oncological Emergencies

Tumor Lysis Syndrome

• An oncologic emergency caused by very sudden and rapid tumour cell death in which the intracellular contents are released causing metabolic abnormalities and acute kidney injury

• May occur spontaneously, or with the initiation of chemotherapy

Page 117: Oncological Emergencies

Tumor Lysis Syndrome

• Mechanism

– Rapid necrosis of tumour cells

– Release of massive intracellular material into the circulation - metabolic load

– Ascites

– Renal impairment

– Arrhythmias

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Patient’s at risk of TLS

• Tumours with rapid rate of growth / high cell turnover - high LDH

• High bulk of malignant disease - high tumour burden, widespread mets, bm involvement

• Advanced stage of disease

• Renal impairment at time of diagnosis

• Laboratory evidence of tumour lysis syndrome

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Tumor Lysis Syndrome

• Diagnosis

– Potassium increased

– Phosphate increased

– Calcium decreased

– Uric Acid increased

– Acidosis

– Azotemia

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Tumor Lysis Syndrome

• Treatment

– Correct acidosis, potassium, uric acid

– Diuresis

– Dialysis if needed

• Prompt treatment can prevent death

Page 121: Oncological Emergencies

Mucositis/Oesophagitis

• Mechanism

– Radiation therapy

– Chemotherapy

– Antitumor antibiotics

– Antimetabolics

• Symptoms

– Pain

– Vomiting

Page 122: Oncological Emergencies

Mucositis/Oesophagitis

• Treatment

– Hydration

– Mycostatin/Magic Mouthwash

– Kepivance (palifermin) 60 mcg/kg/d for 3 days before and after chemo

– Gelclair (coating agent)

– Recombinant Keratiocyte Growth Factor

Page 123: Oncological Emergencies

• Antibiotics

• Antivirals

• Other

– Morphine Patch

– TPN/nutritional support

Mucositis/Oesophagitis

Page 124: Oncological Emergencies

• Avastin (Bevacizumab)

• Erbitux (Cetuximab)

• Tarceva (Erlotinib)

• Iressa (Gefitinib)

• Gleevec (Imatinib)

• Rituxan (Retuximab)

• Others…..

New Drugs New Complications

Page 125: Oncological Emergencies

• Avastin – Abdominal Perforation

– Wound dehiscence after surgery

– Stroke risk

• Erbitux – Acneform Rash 90%! (10% severe)

• Rituxan (Anti CD-20 antibody) – Anaphylactic reaction

• Tarceva – Acneform Rash, pulmonary toxicity

• Iressa – Rash, pulmonary toxicity

New Drugs New Complications

Page 126: Oncological Emergencies

• Acniform Rash

New Drugs New Complications

Page 127: Oncological Emergencies

Emergencies

• Cardiovascular – Pericardial Tamponade – Superior Vena Cava Syndrome

• Central Nervous System Emergencies – Increased Intracranial Pressure – Spinal Cord Compression

• Gastrointestinal – Bowel Obstruction – Bowel Perforation – Ascites – Esophageal Obstruction and Perforation

Page 128: Oncological Emergencies

Emergencies

• Hematologic Emergencies

– DIC

– Leukostasis

– Thrombocytopenia

• Infectious Emergencies

– Sepsis in the leukopenic patient

– Disseminated Viral Infections

– Fungal and Parasitic Diseases

Page 129: Oncological Emergencies

Emergencies

• Metabolic Emergencies

– Hyperuricemia

– Hypercalcaemia

– Hypoglycemia

– Lactic Acidosis

– Tumor Lysis Syndrome

• Orthopedic Emergencies

– Pathologic Fracture

Page 130: Oncological Emergencies

Emergencies

• Waldenstroms

– Hyperviscosity Syndrome

– Plasmaphoresis

Page 131: Oncological Emergencies

Emergencies

• Renal Emergencies – Ureteral Obstruction – Pelvic Tumors

• Respiratory Emergencies – Airway Obstruction

– Pneumothorax

– Effusion

• Symptomatic Emergencies – Pain

– Vomiting

– Mucositis

– Dyspnea

Page 132: Oncological Emergencies

Pericardial Tamponade

• Mechanism – Fluid in pericardial sac due to metastaic tumor – Post X-ray treatment – 4000 r – Decreased CO because of decreased venous return

• Symptoms – Dyspnea – Confusion – Coma – Distended neck veins – Pulses Paradoxes – CHF

Page 133: Oncological Emergencies

Pericardial Tamponade

• Diagnosis – Enlarged heart

– CXR – sac-like heart

– Echo

• Treatment – Percardiocentesis

– Catheter SFU

– X-Ray Therapy

– Surgery – window vs. pericardiectomy

Page 134: Oncological Emergencies