11.03.2017 Views

DR Medhat MRCP

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Non-small cell carcinoma :<br />

Squamous cell carcinoma<br />

Typically central mass ,may cavitates.<br />

Associated with ectopic PTH<br />

secretion→ hypercalcemia (15%)<br />

Strongly associated with finger<br />

clubbing.<br />

Hypertrophic pulmonary<br />

osteoarthropathy (HPOA)<br />

Adenocarcinoma<br />

Typically located at lung periphery<br />

It`s the commonest type of lung<br />

cancer among non-smokers (although<br />

the majority of patients who develops<br />

lung adenocarcinoma are smokers)<br />

• Management of non-small cell lung cancer<br />

A) When to start TTT ? :<br />

TTT should be started within 31 days of diagnosis & within 62 days from urgent referral.<br />

B) Lines of TTT :<br />

Operable cases (only 20% )→ Surgery (lobectomy or pneumonectomy)<br />

- Stage I : (T1N0M0), (T2NOM0)<br />

- Stage II : (T1N1M0), (T2N1M0) ,(T3N0M0).<br />

- Stage IIIa : (T3N1M0),(T3,N2M0)→ Surgery + Chemotherapy.<br />

- If unfit or patient refuse→ Radical radiotherapy (= continuous hyperfractionated<br />

accelerated radiotherapy,CHART)→ C.I : tumor > 4cm or FEV1 < 50%.<br />

Un-operable cases→ Radiotherapy.<br />

- Stage IIIb : (T4N2M0) , (any T + N3 M0).<br />

- Stage IV : (any T ,any N with metastasis).<br />

C) Assessment of fitness for treatment :<br />

Peri-operative mortality : using thoracoscore.<br />

N.B : non-small lung cancer has<br />

poor response to chemotherapy<br />

Cardiovascular assessment :<br />

- Avoid surgery within 30 days of MI.<br />

- Do revascularization before surgery in stable angina.<br />

- Maximum anti-ischemic TTT in peri-operative period<br />

- If ≤ 2 risk factors + good cardiac function → do the surgery.<br />

- If active cardiac problem , risk factors ≥ 3 with poor cardiac function → refer to<br />

cardiologist.<br />

Pulmonary assessment :<br />

- If estimated post operative FEV1 < 40 % of predicted & DLCO > 40 % of<br />

predicted with O2 sat. > 90 % in RA → average risk.<br />

- If estimated post operative FEV1 < 40 % of predicted & DLCO < 40% of<br />

predicted → high risk patient → for more restrictions or non-surgical TTT.

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