Drug-Induced and Other Lung Diseases Flashcards
Chemotherapeutic agents that cause pneumonitis
BCNU, Bleomycin, Busulfan, Cyclophosphamide, Methotrexate, Mitomycin C, Taxol
Non-Chemotherapeutic agents that cause pneumonitis
Amiodarone, Cocaine/heroin, Interferon alpha, Nitrofurantoin, Statins, Immunotherapeutics
Chemotherapeutic agents that cause non-cardiogenic pulmonary edema
Azathioprine, cytosine, arabinoside, gemcitabine, IL-2, Methotrexate, Mitomycin, Retinoic Acid
Non-chemotherapeutic agents that cause non-cardiogenic pulmonary edema
Amiodarone, ASA/NSAIDs, Cocaine/heroin, Sulfasalazine, Tocolytics
Antibody positive in drug induced lupus
Anti-histone
5 agents that account for 90% or more of drug induced lupus
Hydralazine, Isoniazide, Penicillamine, Procainamide, Quinidine
4 pulmonary syndromes associated with sickle-cell disease
Acute Chest Syndrome, Fat embolism syndrome, Chronic restrictive lung disease, Pulmonary hypertension
Key features of fat embolization syndrome
Common postpartum, Multilobar or ARDS pattern, Neurologic features and renal failure, Petechiae, Fat globules in sputum and urine, positive bone scans
Treatment of sickle-cell patients at high risk for PAH
Hydroxyurea (raises HgF), Transfusion if not responsive. If PE, lifelong anticoagulation as long as no contraindication. Trial of prostacyclin or ERA, but do not use PDE-5 inhibitor as first line.
Triad of findings in hepatopulmonary syndrome
Liver disease, hypoxemia, intrapulmonary vascular dilations
Pathophysiology of hepatopulmonary syndrome
pleural and spider nevi with portopulmonary anastamoses leads to a V/Q mismatch
Diagnostic criteria for hepatopulmonary syndrome
Liver disease, A-a DO2 >15, Vascular dilation and shunt as evidenced by positive echo bubble study or radioactive albumin appears in brain after injection
Treatment for hepatopulmonary syndrome
Oxygen as no medical treatment as been shown to be effective. Transplant is effective.
PaO2 value that counts for MELD exception for liver transplant in hepatopulmonary syndrome
< 60
Criteria for diagnosing portopulmonary HTN
portal hypertension, RHC measured PA pressure mean > 20, PVR > 240 dynes.s.cm, PAWP < 15