dt efusi pleura
DESCRIPTION
aTRANSCRIPT
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DISKUSI TOPIKEFUSI PLEURA
PRESENTAN: DR ARTATI MNARASUMBER :
DR. GURMEET SINGH, SP. PD
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Fluid accumulation in the pleural space indicates disease
Mechanisms: -↑ pulmonary capillary pressure -↓ oncotic pressure (Hipoalbuminemia) -↑ pleural membrane permeability- obstruction of lymphatic flow (malignancy or infection)
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The pleural space normally contains 0.1–0.2 ml/kg body weight of fluid, filtered from systemic capillaries down a small pressure gradient
Fluid drains into the systemic circulation via a delicate network of lymphatics and eventually enters the mediastinal lymph nodes
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Diagnosis
clinical history->disease?drug? physical examination chest radiography analysis of pleural fluid (CT) of the thorax pleural biopsy Thoracoscopy bronchoscopy.
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Clinical Features of Pleural Effusions
Dyspnea Cough sharp nonradiating chest pain that is often
pleuritic
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Physical findings
Unilateral leg swelling-> pulmonary embolism, Bilateral leg swelling->heart or liver failure. Pericardial friction rub-> pericarditis.
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CAUSES
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PLEURAL ASPIRATION Aspiration should not be performed for
bilateral effusions in a clinical setting strongly suggestive of a transudate unless there are atypical features or they fail to respond to therapy
An accurate drug history should be taken during clinical assessment
Diagnostic thoracentesis is required: Bilateral effusions that are unequal in size Effusion that does not respond to therapy Pleuritic chest pain Febrile
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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PLEURAL ASPIRATION
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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PLEURAL ASPIRATION Once aspirated, the fluid is sent for biochemical,
microbiological, and cytological analyses
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PLEURAL ASPIRATIONBedside ultrasound guidance
improves the success rate and reduces complications (including pneumothorax) and is therefore recommended for diagnostic aspirations
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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PLEURAL ANALYSISpleural effusions:
◦ Protein level < 30 g/L: transudate◦ Protein level > 30 g/L: exudate
When a protein level greater than 30 g/L is used as the only basis for determining the type of effusion, 10% of exudates and 15% of transudates are misclassified.-> light’s criteria
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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PLEURAL ANALYSIS
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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PLEURAL ANALYSIS difference between serum and pleural levels of
protein is greater than 31 g/L, ->transudate. Albumin difference of more than 12 g/L between
serum and fluid levels-> transudate.
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PLEURAL ANALYSIS
Glucose < 28.8 mg/dL ->tuberculosis, malignant neoplasm, empyema, rheumatoid arthritis, systemic lupus erythematosus, and esophageal rupture
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PLEURAL ANALYSIS In a parapneumonic effusion, a pH of <7.2
-> empyema-> indicates the need for tube drainage. (Complex effusion)
A low pH can also occur in esophageal rupture, rheumatoid arthritis, and malignant neoplasm associated with poor outcome.
Elevated levels of lactate dehydrogenase occur
in lymphoma and tuberculosis; levels greater than 1000 U/L -> empyema.
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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PLEURAL ANALYSISPleural fluid cell ->narrowing the
differential diagnosis but none are disease-specific
Neutrophil-predominant pleural effusions are associated with acute processes:◦ Parapneumonic effusions◦ Pulmonary embolism◦ Acute TB◦ Benign asbestos pleural effusions
Lymphocytes-predominant pleural effusions:◦ Malignancy◦ Tuberculosis (TB)1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American
Journal of Critical Care. 2011;20:119-26.
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PLEURAL ANALYSIS predominance of eosinophils in pleural fluid-> no
significance, have been associated with air or blood in the pleural space.
ADA ->where the prevalence of tuberculosis is high. ADA> 40 U/L sensitivity > 90% and a specificity 85% for the presence of tuberculosis.
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PLEURAL ANALYSIS Elevated ADA also occurs with malignant neoplasm,
empyema, and rheumatoid arthritis. ADA levels may be normal in the pleural fluid of
patients positive for HIV who have tuberculosis.
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CT SCAN THORAXCT scan with contrast
enhancement should be performed: Before complete drainage of pleural fluid In the investigation of all undiagnosed exudative
pleural effusions Can be useful in distinguishing malignant from benign
pleural thickening Complicated pleural infection when initial tube drainage
has been unsuccessful & surgery is to be considered
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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BRONCHOSCOPYRoutine diagnostic bronchoscopy
should not be performed for undiagnosed pleural effusion
considered if there is haemoptysis or or radiological features of malignant neoplasm such as a mass, massive pleural effusion, or a shift in the midline toward the side of the effusion.
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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BRONCHOSCOPY
patients with massive effusion, drainage before bronchoscopy is recommended to allow an adequate examination without extrinsic compression.
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BIOPSIESWhen investigating an
undiagnosed effusion where malignancy is suspected & areas of pleural nodularity are shown on contrast-enhanced CT an image-guided cutting needle and the percutaneous pleural biopsy is method of choice
Thoracoscopic & image-guided cutting needles have been shown to have a higher diagnostic yield1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American
Journal of Critical Care. 2011;20:119-26.
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THORACOSCOPYThoracoscopy is the next step
for patients whose cytological results are negative for malignant cells
Image-guided biopsy is also useful in patients who are too weak to undergo thoracoscopy
1. McGrath EE, Anderson PB. Diagnosis of pleural efusion: a systematic approach. Pulmonary Critical Care. American Journal of Critical Care. 2011;20:119-26.
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THORACOSCOPY
Indication:◦ Patients with no evidence of
malignant disease, pleural thickening, or pleural nodularity
◦ If the results of image-guided biopsy are negative for malignant disease
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TERIMA KASIH