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31 Possible Causes for Decreased Peak Expiratory Flow Rate

  • Asthma

    A severe exacerbation was defined as a decrease in the morning peak expiratory flow rate to more than 30% below the baseline value on 2 consecutive days or more than eight[dx.doi.org] […] and peak expiratory flow rate (PEFR) were very similar for the two groups, and the allergen levels decreased by less than 50%, compared with the control group, which is far[doi.org] expiratory flow rate (SMD 0.73, 95% CI 0.36 to 1.09; 7 studies), and reduce medication usage (SMD 0.69, 95% CI 0.41 to 0.96; 3 studies) (risk ratio for decreasing dosage[doi.org]

  • Chronic Obstructive Pulmonary Disease

    Rationale: Studies evaluating corticosteroid (CS) dosing for patients hospitalized with an acute exacerbation of chronic obstructive pulmonary disease (AECOPD) have largely excluded patients admitted directly to the intensive care unit (ICU), and none have evaluated the effect of CS dosing regimens on mortality.[…][doi.org]

  • Allergic Asthma

    Idiopathic pulmonary hemosiderosis (IPH) is a rare disorder with unknown pathogenesis that usually presents in the first decade of life. As a result of diffuse alveolar hemorrhage, respiratory symptoms such as cough attacks, hemoptysis, dyspnea, and recurrent and refractory iron-deficiency anemia (IDA) are[…][ncbi.nlm.nih.gov]

  • Pulmonary Metastasis

    Malignant intraventricular meningiomas are quite rare and may spread along the craniospinal axis or extraneurally. However, simultaneous cerebrospinal dissemination and distal extraneural metastasis has seldom been reported. A 51-year-old woman presented with recurrent anaplastic meningioma in the trigone of right[…][ncbi.nlm.nih.gov]

  • Tracheal Stenosis

    Idiopathic laryngotracheal stenosis is a fibroinflammatory stenosis in persons without alternative explanation such as trauma, intubation, or autoimmune disease. Patients are usually females of child-bearing age. We report on an 11-year-old male who developed progressive dyspnea and stridor. Bronchoscopy revealed 90%[…][ncbi.nlm.nih.gov]

  • Carcinoid Tumor

    Abstract Primary carcinoid tumor arising in a mature teratoma of the horseshoe kidney is exceptionally rare and only 4 such cases have been reported in the world literature to date. The simultaneous occurrence of different subtypes of renal cell carcinoma (RCC) or RCC coexistence with non-RCC neoplasms from[…][ncbi.nlm.nih.gov]

  • Tracheomalacia

    Abstract Single center experience with thoracoscopic repair of esophageal atresia with distal fistula and of tracheomalacia. Between May 2000 and December 2006, 51 neonates with an esophageal atresia were presented for thoracoscopic repair. Gestational age varied from 31 3/7 to 42 2/7 weeks (M 37 2/7). Birth[…][ncbi.nlm.nih.gov]

  • Amyloidosis

    Horike K 1 , Takeda A 2 , Tsujita M 2 , Goto N 2 , Watarai Y 2 , Uchida K 1 , Katayama A 1 , Nishihira M 1 , Shimizu A 3 , Nozu K 4 , Morozumi K 1 . Author information 1 Department of Kidney Center, Masuko Memorial Hospital, Nagoya, Japan. 2 Department of Kidney Center, Nagoya Daini Red Cross Hospital, Nagoya, Japan. 3[…][ncbi.nlm.nih.gov]

  • Obstruction of the Lung

    PURPOSE: Congenital tracheal stenosis (CTS) and a single right lung treated with slide tracheoplasty (ST) has relatively high rates of mortality and morbidity. We report a single institution's experience with adjunctive procedures at the time of ST to reduce postoperative tracheal obstruction in patients with a[…][ncbi.nlm.nih.gov]

  • Tracheobronchial Amyloidosis

    A case of diffuse tracheobronchial amyloidosis in a 70-year-old woman thought clinically at first to have lung carcinoma is reported. Bronchoscopic biopsy was necessary to make a diagnosis. Amyloid was deposited markedly in the subepithelial layer. After Congo-red staining amyloid showed the usual apple-green[…][ncbi.nlm.nih.gov]

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