title: Clinical features and predictors of in-hospital mortality in patients with acute and chronic pulmonary thromboembolism.
abstract: OBJECTIVE
  The differences in the clinical findings of patients with acute pulmonary thromboembolism (acute-PTE) and chronic pulmonary thromboembolism (chronic-PTE) were compared, and the association between the clinical findings and prognosis in the two groups was analyzed.
  
  
  METHODS
  This study included 204 patients with PTE, 139 patients with acute-PTE and 65 patients with chronic-PTE.
  
  
  RESULTS
  There were significant differences between acute-PTE and chronic-PTE in the predisposing factors of post operation (19.4 versus 1.5%, p = 0.0003), and electrocardiographic signs such as sinus tachycardia (73.7 versus 50.9 %, p = 0.007), ST-depression (25.3 versus 9.4%, p = 0.03), right ventricular hypertrophy (20.0 versus 47.2%, p = 0.0007), and right axis deviation (3.2 versus 22.6%, p = 0.0003). Thirty-one of the 139 acute-PTE patients died from PTE, as did 17 of the 65 chronic-PTE patients. The prognosis was poor in patients older than 70 years old (p = 0.01), with stroke (p = 0.008), syncope (p = 0.01), shock (p = 0.0006), hypocapnia (PaCO2 < or = 25 torr; p = 0.0006) and an elevation in total pulmonary resistance (TPR >1,000 dyne-sec cm(-5) (p = 0.02)) in acute-PTE, and in those with syncope (p = 0.03), shock (p = 0.008), and right ventricular hypertrophy on electrocardiogram (p = 0.03) in chronic-PTE.
  
  
  CONCLUSIONS
  The results of this study indicate a relationship between the clinical features of patients with acute-PTE and chronic-PTE, and the predictors of in-hospital mortality.
authors.affiliation: First Department of Internal Medicine, Tohoku University School of Medicine, Sendai.
authors.forename: N
authors.initials: N
authors.lastname: Kumasaka
authors.forename: M
authors.initials: M
authors.lastname: Sakuma
authors.forename: K
authors.initials: K
authors.lastname: Shirato
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D002245:Carbon Dioxide / Q000097:blood; D002908:Chronic Disease; D005260:Female; D006439:Hemodynamics; D006742:Hospital Bed Capacity; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology; D007297:Inpatients / Q000706:statistics & numerical data*; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011651:Pulmonary Artery; D011655:Pulmonary Embolism / Q000097:blood / Q000150:complications / Q000000981:diagnostic imaging / Q000401:mortality*; D011859:Radiography; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D012769:Shock / Q000209:etiology; D011795:Surveys and Questionnaires; D013575:Syncope / Q000209:etiology; D013616:Tachycardia, Sinus / Q000209:etiology
chemical_list: D002245:Carbon Dioxide