Pleural Disease Flashcards
What are some clinical findings of pleural disease?
Reduced breath sounds
Stony dull on percusion
What are some possible chest X-ray findings for pleural disease?
Loss of costophrenic ange
At least 200ml of pleural fluid
Tracheal deviation
What are some possible CT findings of pleural disease?
Nodular thickening
Pleural fluid/air
Density of fluid
Localisation
When investigating pleural fluid, in terms of biochemistry, what are you looking for?
Protein
LDH
Glucose
Triglyceride
Cholesterol
Amylase
Rheumatoid factor
When investigating pleural fluid, in terms of microbiology, are you looking for?
Gram stain
AAFB
Culture
What are the 2 kinds of extracellular fluid?
Transudate
Exudate
What is tranudate?
Extracellular fluid with a low protein count, occurs due to increase hydrostatic pressure
What does transudate occur due to?
Increase hydrostatic pressure
What is exudate?
Extracellular fluid with a high protein count, occurs due to inflammation and increase capillary permeability
What does exudate occur due to?
Inflammation and increased capillary permeability
Which of tranudate and exudate has more protein?
Exudate
Which of transduate and exudate has more LDH?
Exudate
What is LDH?
Lactate dehydrogenase
What is exudate associated with?
Infection
Malignancy
Pulmonary embolism
Rheumatoid arthritis
Effusions
What is transudate associated with?
Cardiac failure
Liver failure
Renal failure
Hypoalbuminemia
Hypothyroidism
Pulmonary embolism
Malignancy
What are different kinds of biopsy that can be used to obtain a sample of pleural fluid?
Abrams pleural bipsy
Image guided biopsy
Medical thoracoscopy
VATS pleural biopsy
What does VATS stand up for?
Video assisted thoracoscopic surgery
What is a pleural effusion?
Build up of fluid between the layers of the pleura
What is a build up of fluid between the two layers of the pleura called?
Pleural effusion
When should a pleural effusion be drained?
Large
Breathless
Raised respiratory rate
Hypoxia
Tachycardia
Chest X-ray trachea deviated
Pus
Trauma
Parapneumonic
What is a parapneumonic effusion?
Type of effusion that arises as a result of a pneumonia, lung abscess or bronchiectasis
What is the prognosis of parapneumonic effusion?
Poor outcome
What percentage of pleural effusions are parapneumonic effusions?
33%
What is a type of effusion that arises as a result of a pneumonia, lung abscess or bronchiectasis called?
Parapneumonic effusion
Where should the needle go (in regards to the rib) when obtaining a sample of pleural fluid?
Above the rib to avoid the nerve bundle
What is a pneumothorax?
Collapsed lung, occurs when air leaks into the pleura
What is a collapsed lung, occuring due to air leaking into the pleura called?
Pneumothorax
What are the 2 ways that a pneumothorax can occur?
Spontaneous
Traumatic
What are different kinds of traumatic pneumothorax?
Non-iatrogenic
Iatrogenic
What does iatrogenic mean?
Illness caused by medical examination or treatment
What is an illness caused by medical examination or treatment called?
Iatrogenic
What does management of a pneumothorax include?
Nothing
Aspiration
Oxygen and chest drain insertion
What does long term management of a pneumothorax include?
Home with chest drain
Medical pleurodeisis
Cardiothoracic referral
What is a pleurodeisis?
Procedure that uses medicine to adhere your lung to your chest wall
What is a procedure that uses medicine to adhere your lung to your chest wall called?
Pleurodeisis
What is a tension pneumothorax?
Progressive build up of air within the pleural space, usually due to a lung laceration which allows air to escape into the pleural space but not return
What is the progressive build up of air within the pleural spaced called?
Tension pneumothorax
What is a laceration?
Deep cut or tear
What is a deep cut or tear called?
Laceration
What perentage of the time that a tension pneumothorax requires ventilation?
50%
What are the signs of a tension pneumothorax?
Distressed
Trachea deviation
Reduced chest expansion
Hyper resonance
Hypoxia
Tachycardia
Hypotension
Cardiac arrest
What do you aspirate for a tension pneumothorax?
2nd anterior intercostal space in the midclavicular line
What advice should you speak about with a patient you are discharging?
Advice about recurrence
Smoking cessation
Flying
Return to work
Any follow up
What is a well known chemical that can cause pleural disease?
Asbestos
What are the 3 main highly fibrous materials that cause pleural disease?
Chrysotile (white)
Amosite (brown)
Crocidolite (blue)
What colour is chrysotile?
White
What colour is amosite?
Brown
What colour is crocidolite?
Blue
What is the most dangerous asbestos to health?
Crocidolite
What is asbestos?
Group of minerals made of microscopic fibres, where if you breath in these fibres they can damage your lungs
What are the group of materials made of microscopic fibres called?
Asbestos
What is asbestos related pleural disease usually due to?
Occupation
How long is the latent period?
20-40 years
What are examples of occupations that might lead to asbestos related pleural disease?
Marine engineer
Ship building
Docks
Construction sites
Joiners
Plumbers
Engine rooms
Boilers
What are examples of diseases caused by asbestos?
Pleural plaques
Benign asbestos effusion
Malignant mesothelioma
Diffuse pleural thickening
What are pleural plaques?
Due to exposure to asbestos areas of the pleural membrane become thickened and accumulates a chalky material
What is it called when due to asbestos areas of the pleural membrane become thickened and accumulates a chalky material?
Pleural plaques
What may people who have pleural disease due to asbestos be entitled to?
Compensation
Are pleural plaques benign or malignant?
Benign
What is a benign asbestos effusion?
Non-malignant pleural disease
What is benign asbestos effusion associated with?
Pleural thickening
What is a malignant mesothelioma?
Cancer of the thin tissue (mesothelium) that lines the lung, chest wall and abdomen
What is cancer of the thin tissue (mesothelium) that lines the lung, chest wall and abdomen called?
Malignant mesothelioma
What are symptoms of malignant mesothelioma?
Chest pain
Breathlessness
Fever
Weakness
Cough
Weight loss
What does the diagnosis of malignant mesothelioma use?
Chest X-ray
CT
Aspirate
Tissue required to confirm diagnosis
What does a chest X-ray show for malignant mesothelioma?
Pleural effusion
Pleural based opacity/mass
What is used to obtain tissue to confirm the diagnosis of malignant mesothelioma?
Image guided biopsy
Thoracoscopy
Lobectomy
What is the median survival time for malignant mesothelioma?
Less than 1 year
What is the treatment for malignant mesothelioma?
Limited role for surgery
Chemotherapy
Palliation
What is diffuse pleural thickening?
Extension, often smooth scarring thickens the pleural membrane
What is it called when smooth scarring thickens the pleural membrane?
Diffuse pleural thickening
What is pleural fibrosis?
Thickening and stiffening of the pleural that occurs due to pleural inflammation or exposure to asbestos
What is thickening and stiffening of the pleura that occurs due to pleural inflammation or exposure to asbestos called?
Pleural fibrosis
What is empyema?
Collection of pus in the pleural cavity caused by microorganisms
What is a collection of pus in the pleural cavity caused by microorganisms called?
Empyema