Pulmonary emboilsm (PE) that is generally resulted from deep vem thrombosis (DVT) mlower extremities is fowid by chance range of symptoms as asymptomatic emboly to massive emboly and witli death Clironic consequences of PE is chronic thromboembolic pulmonary hypertension. The incidence apparently mcreases above the age of 60 both in women and in men. Mortality is 15% afterfirst 3 montlis of diagnosis. Aproximately in 25% of cases, clinic presentation is sudden death. If PE diagnosis is verified or there is Jiigli or medwm PE possibility, unfractioned heparin, LMWH, fondoparinux must be used immediately tilldiagnostic procedures are applied. At highrisked PE, tlirombolitic treatment meanmg fully deCIeases mortality and recurrences Thrombolitic teratmeni should he used in highrisked patieiits if the re is no contraindication. Throniholytic treatment is lifesaver in patients witli cardiogenic shock and heniodynamic instabiilty (massive PE). lf there are conditions such as constant contraindicationfor thromboenibolism or liemodvnamic instabilitv altliough thrombolysis can't fix it; treatment is siu: r: ical; mbolectomy. K; itamin antagonistic drugs are used in idiopathic PE patiems at least 3 niomhs Later on, patients are harmful effects of timele ss treatment. K vitamm antagonistic drug treatment witli 3 months should be preferred to shortertimed treatmentsin PE seconder to reverstble riskfactors o. pects reversihle riskfactor related distal DVT patients. No more than 3 months treatnients are generally advised if reversible risk factor is eliniinated