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41 Possible Causes for Decreased Peak Expiratory Flow Rate

  • Allergic Asthma

    An exacerbation was defined by any of the following: a decrease in morning peak expiratory flow rate of at least 20 percent during three of the seven days preceding a visit[] , a decrease in FEV 1 of at least 20 percent, an urgent or unscheduled visit for asthma symptoms, or an increase in β-agonist use of at least 50 percent for at least two consecutive[]

  • Obstruction of the Lung

    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 single right[…][]

  • Tracheal Stenosis

    We describe a 61-year-old female who underwent KTP laser ablation and CRE balloon dilatation of symptomatic idiopathic subglottic stenosis (50% obstruction). The procedure was conducted, using our standard approach for such cases, under total intravenous general anesthesia with subglottic high-frequency jet[…][]

  • Tracheobronchial Amyloidosis

    Pulmonary involvement in amyloidosis is a distinct rarity. This clinical entity usually presents as tracheobronchial amyloidosis (TBA). A 32-year-old, never-smoker man presented with episodic dyspnoea and wheezing along with cough and mucoid sputum. The chest radiograph was suggestive of a middle lobe syndrome (MLS).[…][]

  • Malignant Carcinoid Syndrome

    Somatostatin analogues are the mainstay of therapy for malignant carcinoid syndrome. There is clear evidence that the once monthly intramuscular formulation, Octreotide LAR, controls symptoms of carcinoid syndrome, and recent data also suggests an antitumour effect. There is limited data on prolonged release[…][]

  • Leukotriene Receptor Antagonist

    To determine whether the addition of montelukast could lead to a reduction in inhaled corticosteroid dose without a significant decrease in peak expiratory flow rate (PEFR[] Peripheral blood eosinophil count, changes in FEV(1) and peak expiratory flow rate (PEFR), asthma exacerbations, and as-needed use of beta-agonist were also monitored.[] Montelukast improved FEV(1) and PEFR, and decreased peripheral eosinophil counts in all study patients.[]

  • Bronchiolitis Obliterans

    We report a case of bronchiolitis obliterans associated with Stevens-Johnson syndrome. A 59-year-old man presented with respiratory distress that gradually worsened over 3 months. He had been diagnosed with Stevens-Johnson syndrome 3 months before admission. He had no history of previous airway disease. On[…][]

  • Tracheal Injury

    Injuries to the tracheobronchial region are rare, but have the potential for rapid progression and can become life-threatening. Etiologies of non-penetrating tracheobronchial injuries include blunt cervical trauma, endotracheal intubation, and other iatrogenic causes. Several options for treatment ranging from[…][]

  • Tracheal Disease

    Initial management of patients with difficult-to-treat asthma must begin with confirmation of the diagnosis. We present 2 cases of tracheal disease misdiagnosed as difficult-to-treat asthma. After systemic evaluation, tracheomalacia and tracheobronchial narrowing due to diffuse calcification of the cartilaginous rings[…][]

  • Secondary Tracheal Tumor

    Giant Paraesophageal Hernia Thoracic Open Abdominal or Laparoscopic Approach 343 Management of Minimally Symptomatic Giant Paraesophageal Hernias 350 Plication for Diaphragmatic Eventration 356 Pacing for Unilateral Diaphragm Paralysis 365 Optimal Crural Closure Techniques for Repair of Large Hiatal Hernias 371[…][]

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