Lung transplant:

 

Issues:

Allograft

Airway:

·      Anastomosis -> risk of rupture if fresh

·      ↓Mucociliary clearance + ↓carinal reflex -> risk of pneumonia

*Aspiration pneumonia is probably lethal*

Breathing:

·      Differential mechanics -> risk barotrauma, volutrauma (if single lung)

·      ↓Lymphatic drainage -> risk of APO

Underlying disease

·      Pulmonary hypertension / RV failure -> risk of CVS collapse

·      CF -> pancreatic insufficiency

·      α1-antitrypsin deficiency -> cirrhosis

·      Sarcoidosis -> anything

Drug side effects

·      Immunosuppression -> risk infection, wound breakdown

·      Adrenocortical suppression -> risk Addisonian crisis

·      Pancytopaenia

·      Organ failure

 

Assessment:

Questions

·      Severity of presenting illness?

·      Severity of comorbidities?

·      Function of transplanted lung?

Hx

·      HOPC

·      General function: exercise tolerance, NYHA, MMRC

·      Transplant: uni vs bilat, function, complications

·      Lung disease: nature, severity, treatment

·      Heart disease: PHTN, RV failure, accelerated CAD

·      Medications: immunosuppressants, side effects

Ex

·      General

·      Vital signs

·      Airway

·      Resp

·      CVS

Ix

Resp:

·      ABG: P/F ratio

·      ±CT: bronchiolitis obliterans

·      ±Spirometry (?)

Cardiac:

·      ECG: ? cor pulmonale

·      TTE

 

Anaesthesia:

Airway

No soiling:

·      Secure airway

·      Aseptic technique

·      Awake extubation

No damage:

·      Bronchoscopy to confirm

·      Manometry

·      If single lung transplant: contralateral-sided DLT

Breathing

·      Lung-protective ventilation

·      Restrictive fluid strategy

·      If single: differential ventilation vs good lung only via DLT

Circulation

·      Not sure. Assume PHTN?

Drugs

·      Immunosuppressants: need advice

·      Glucocorticoids: need advice, likely stress dosing

 

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