560 likes | 833 Views
EMPYEMA NEW MEDİCAL THERAPY MODALİTİES. Dr.Hüseyin YILDIRIM Eskişehir Osmangazi University Medical Faculty Department of Chest Disease. PRESENTATION. Definition Etiology Microbiology Radiology Classification Medical therapy. DEFINITION. Pneumonia , Bronchiectasis Lung abscesses
E N D
EMPYEMANEW MEDİCAL THERAPY MODALİTİES Dr.Hüseyin YILDIRIM Eskişehir Osmangazi University MedicalFaculty Department of ChestDisease
PRESENTATION • Definition • Etiology • Microbiology • Radiology • Classification • Medicaltherapy
DEFINITION • Pneumonia, • Bronchiectasis • Lungabscesses secondarypleuralfluid • refersto frank “pus” in the pleural space
2-7 days 2-5 days 5-10 days 10-21 days ENTRAPMENT ClinInfecDis 2007; 45: 1480-6
ETIOLOGY • Community-acquiredandhealth-care-associatedpneumonia • Bronchialobstructionfromtumororforeign body • Rupturedlungabscess • Bronchiectasis • Thoracicandabdominalsurgery • Chestandabdominaltrauma • Thoracicinterventionalprocedures, such as thoracentesisandesophagoscopy • Primarypleuralinfectionfromhematogenous spread • Extension of infectionfromneck, abdomen, ormediastinum
Risk factors for the development of pleural infection include; • Chroniclungdisease, • Rheumatoidartritis, • Diabetesmellitus, • Immunsuppresion, • HIV infection, • Alcoholism, • GORD, poordentalhygiene • Malnutrition • Substanceabuse • Neuromusculardisorders, seizures, mentalretardation
Microbiology • The bacteriology of empyema is varied and significant differences are observed between community- and hospital-acquiredinfections. • Using the conventional methods achieves a bacterial diagnosis in approximately 60% ofpleural-fluidsamples. • Anaerobes play an important role in pleuralspaceinfection. CurrOpinPulmMed 2007; 13: 319-323
Toplum kökenli enfeksiyöz ajanlar (MIST1 trial data) Bacteriology of complicated parapneumonic effusions. Foster, Sarah; Maskell, Nick Current Opinion in Pulmonary Medicine. 13(4):319-323, July 2007.
Hastane kaynaklı enfeksiyon ajanları Bacteriology of complicated parapneumonic effusions. Foster, Sarah; Maskell, Nick Current Opinion in Pulmonary Medicine. 13(4):319-323, July 2007.
Classification of PPE andempyema Chest 2000; 118: 1158-1171
Theaim of therapy; Treatment of thoracicempyemaincludes four basic principles: • elimination of the pleuropulmonary infection withantimicrobialagents • drainage of complicatedparapneumonic effusion, • full expansion of the underlyinglung, and • prevention of thecomplication
Methods for treatment of complicated parapneumonic effusions and pleuralempyema PulmPharmacolTher 2007; 20: 616-626
Observation • Observation is an acceptable option for category I pleural effusionsbecause the risk of a poor outcome without drainage isverylow. • In patients with other categories of parapneumonic effusion,observation without examination of the pleural fluid is not acceptable. • It is important not todelaydrainage Proc Am Thorac Soc. 2006;3(1):75-80
Antibiotherapy • All patients with pleural infection should be treated • with antibiotics. • Intravenous antibiotics are recommended as initialtherapy. • Thechoice of antibioticshould be based on the results of blood and pleuralfluidculturesandsensitivities
Levofloxacin Moxifloxacin 22 EurRespir J 2004; 24: 466-470
TubeThoracostomy • The optimal duration of drainage is unknown, • Successfulclosed-tubedrainage of empyema is evidencedbyimprovement in theclinicalandradiologicalstatuswithin 24h. • Ifthepatient has not demonstratedsignificantimprovementwithin 24 h of initiatingtubethoracostomy, eitherthepleuraldrainage is unsatisfactoryorthepatient is receivingthewrongantibiotic. • Drain removal may be consideredwhen the output falls to less than 150 mL dailyfor 2 days in the setting of clinical and radiographiimprovement.
ChestTube Size Chest 2010; 137: 536-543
Image-guideddrainage • US and CT are the most commonly used modality to guide drainages. • Entry site should be chosen close to the dependent portion of theeffusion. • TrocarorSeldingertechnique can be used for the catheter placement depending on operatorpreference. • The catheter size can be tailored according to the thickness of thefluid. • Contrastinjectionsunderfluoroscopy can also be used to evaluate the presence andonnection of residual collections with the catheter tip. Eur J Radiol 2005; 55: 311-320
FIBRINOLYTIC AGENTS • The pathogenesis of fibrin deposition inexudative pleural effusions includes alterations in thebalance of procoagulant and fibrinolytic activity. • Streptokinase • Urokinase • Tissueplamonogenactivator (Alteplase, t-PA)
Streptokinase • Streptokinase is a non-enzymatic protein produced by the Lancefield group C strain of b-hemolytic streptococci(exotoxin), which activates the fibrinolytic system indirectly • The usual regimens for streptokinase are 250,000 IU daily, or 12 hourly, • Fibrinolytic drugs are usually diluted in 30–100mL of normal saline, with the chest tube clamped for 2–4 h afterinstillation before water-seal or suction drainage
Urokinase • Urokinase is a direct plasminogen activator, initially isolatedfromhumanurine. • It is manufacturedfromcultured human embryonic kidney cells. • In contrast to streptokinase, urokinase is not antigenic andits efficacy is not reduced by antibody production • The usual regimens for urokinase are 100,000 IU daily.
TissuePlasminogenActivator (tPA); • Tissueplasminogenactivatorprovidesfibrinolyticactivitywithouttheantigenicity of streptokinase. • TheusualregimensfortPAare 25 mg /1-5 day
Contraindicationsforfibrinolytictherapy PulmPharmacolTher 2007; 20: 616-626
SIDE EFFECTS • Theobscuringeffects of systemicresponsestotheunderlyingdisease • Immunulugicreactiontostreptokinaserepresentthemostcommonlyreportedadverseeffects. • Theinitialuse of streptokinaseresulted in febrilereaction, general malaise, andleukocytosis. • Localorsystemichemorrhage • IV administration of streptokinasegenerates a systemicantibodyresponse; antistreptokinaseantibody
Streptodornase • Theincreasedviscosity of pleural pus in patientwithempyema is attributabletohighconcentration of DNA resultingfromthebreakdown of phagocytes, bacteria, andotherintrapleuralcells. • Streptodornase is a mixture of fourDNAaseenzymesreleasedbystreptococcithatreducedtheviscosity of pus throughthedigestion of DNA. • Clinicaltrialareneededtoevaluatetheefficacy of streptodornase
Deoxyribonuclease(humanrecombinantDNAase) • CommerciallyavailablehrDNAasedigests DNA andmaypotentiallydecreasetheviscosity of empyema pus withoutthe risk of allergicreactions. • Minimal sideeffects • No randomisedtrial
Anti-growthfactorantibodies • Transforminggrowthfactor (TGF) • Vascularendothelialgrowthfactor (VEGF) İntrapleuralgeneration of theseagentspromotesthe formation of fibroticbandsleadingtopleuralloculations. • Anti-TGF ve anti-VEGF maypreventtheformation of loculations PulmPharmacolTher 2007; 20: 616-626