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1/115. Sweet's syndrome followed by retinoic acid syndrome during the treatment of acute promyelocytic leukemia with all-trans retinoic acid.

    We present here the case of a 49-year-old female with acute promyelocytic leukemia (APL) who, after first developing all-trans retinoic acid (ATRA)-related Sweet's syndrome, was later diagnosed as having retinoic acid (RA) syndrome. Preceding the RA syndrome diagnosis, she developed a fever as well as erythematous nodules on her upper arms. These symptoms were observed on day 18 of treatment with ATRA. Ten days later, she began to develop respiratory distress. There was no indication of infection, and her condition did not improve with empiric therapy. At this time, the diagnosis of RA syndrome was made, resulting in the initiation of steroid pulse therapy, and within 24 hours her elevated fever and respiratory distress improved markedly. In addition, the erythematous nodules gradually began disappearing. A skin biopsy revealed a dense dermal infiltrate consisting of neutrophils.
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2/115. Corticosteroid rescue in late paediatric acute respiratory distress syndrome.

    Late acute respiratory distress syndrome (ARDS) is associated with a mortality of more than 80%. Recent reports in adults have shown improved survival in late ARDS treated with prolonged course of steroids, however little data are available in children concerning its safety and efficacy. We report the successful treatment of a child dying from refractory late ARDS using a prolonged course of high-dose methylprednisolone instituted after 12 days of advanced mechanical ventilation. Progressive improvement was seen from days 3, 7, 10 and 14 after treatment with improvement in PaO2/fraction of inspired oxygen (FiO2) ratios, lung injury score and chest radiographical score. Treatment was complicated by a fungal urinary tract infection that was easily controlled. There were no major metabolic side effects. Steroid therapy can be considered in the treatment of children with refractory late ARDS but larger prospective studies are needed to define indications, timing, dosing and safety of this mode of treatment in children.
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ranking = 26.607314532927
keywords = chest
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3/115. Respiratory distress due to tracheal compression by the dilated innominate artery.

    The case reported is of an 88 yr old female with hypertension and respiratory distress. A chest radiograph revealed a widening of the upper mediastinum. Computed tomographic scanning revealed tracheal compression by the innominate artery, which was elongated and curved. After intubation, she was treated with antihypertensive drugs. This resulted in the remarkable recovery of the patient from respiratory distress. To the authors' knowledge, this is the first reported case of respiratory distress owing to tracheal compression by elongation and curvature of the innominate artery.
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ranking = 27.607314532927
keywords = chest, upper
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4/115. Acute respiratory distress syndrome due to tuberculosis in a child after allogeneic bone marrow transplantation for acute lymphoblastic leukemia.

    We report the occurrence of tuberculosis in a 10-year-old Taiwanese boy, approximately 4 months after he received a matched-related bone marrow transplantation from his sister for acute T-cell lymphoblastic leukemia. After transplantation, grade III acute graft-versus-host disease developed and the patient was treated with prednisolone and cyclosporine. Marrow failure was noted on day 77 post-transplantation, however, after an episode of herpes zoster infection. Interstitial pneumonia, diagnosed on the basis of chest x-ray and computed tomography findings, occurred on day 120. Histologic examination of an open-lung biopsy specimen showed caseating granulomas and a few acid-fast bacilli. The patient died of acute respiratory distress syndrome, despite immediate implementation of antituberculosis therapy. sputum cultures grew mycobacterium tuberculosis 5 weeks later. This report demonstrates that the possibility of tuberculosis needs to be considered in immunocompromised patients, and that appropriate prophylaxis should be instituted in areas where tuberculosis is endemic.
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ranking = 26.607314532927
keywords = chest
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5/115. Acute respiratory distress syndrome following cutaneous exposure to Lysol: a case report.

    Lysol (mixed cresols) is a brand of popular detergent commonly used to disinfect toilets and floors in taiwan. We report a patient with acute respiratory failure immediately following chemical burns caused by skin contact with Lysol solution. On admission, chest radiography showed bilateral diffuse pulmonary infiltrates and an arterial blood gas analysis disclosed hypoxemia refractory to a high concentration of oxygen by inhalation. Under the impression of acute respiratory distress syndrome, our patient was admitted to the intensive care unit for respiratory care. Poor clinical improvement was noted, despite aggressive respiratory therapy. High-dose steroid therapy (hydrocortisone 30 mg/kg/day) was administered from the seventh day after mechanical ventilation began and the ratio of arterial partial pressure of oxygen to fractional concentration of oxygen in inspired gas improved thereafter. The amount of steroid was gradually tapered to the maintenance dose and the patient was successfully weaned from the ventilator after a 93-day course of mechanical ventilation.
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keywords = chest
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6/115. Varicella pneumonia complicated by acute respiratory distress syndrome in an adult.

    Primary varicella infection is uncommon in adults, but carries a higher rate of morbidity and mortality than in children. pneumonia is the most common complication of primary varicella infection in adults. However, varicella pneumonia complicated with acute respiratory distress syndrome (ARDS) is very rare. We report a case of ARDS secondary to varicella pneumonia in a 26-year-old man with primary varicella. The patient was otherwise healthy and had no evidence of human immunodeficiency virus infection. The initial chest radiograph showed bilateral reticulonodular infiltrates, which quickly evolved to diffuse alveolar consolidations. Arterial blood gas analysis revealed a ratio of arterial partial pressure to fraction of inspired oxygen of 87. Abnormal liver function and thrombocytopenia were also noted. Treatment consisted of mechanical ventilatory support and intravenous administration of acyclovir. His pulmonary condition gradually improved and he was successfully weaned from the ventilator 1 week later. He was discharged on the 15th hospital day with a favorable outcome. His pulmonary function improved progressively, with normal spirometry and lung volumes, but persistent mild impairment of diffusing capacity, 6 months after discharge.
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keywords = chest
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7/115. Pressure limited ventilation with permissive hypoxia and nitric oxide in the treatment of adult respiratory distress syndrome.

    In the management of adult respiratory distress syndrome pressure limited mechanical ventilation may protect the lungs from overdistention injury. Unacceptable hypoxia may be avoided by adding nitric oxide to the inspiratory gas, and thus make pressure limited ventilation easier to perform. There exists no consensus about an acceptable lower limit of SaO2, and in the present case we gave preference to pressure limitation at the cost of oxygenation. A young woman with severe adult respiratory distress syndrome was set on pressure limited mechanical ventilation with peak pressures of 35-38 cm H2O, PEEP of 10-12 cm H2O, and FiO2 of 0.95 with 20 ppm nitric oxide. SaO2 varied between 75 and 85%, and cardiac output ranged between 5.2 and 7.5 L min-1. oxygen consumption was in the upper normal range, and she did not became acidotic. After 3 days, she started to improve. In conclusion, it seems that hypoxia might be well tolerated as long as the circulation is not compromised. It might prove beneficial to accept some hypoxia to avoid ventilator induced lung damage.
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keywords = upper
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8/115. Extracorporeal support in an adult with severe carbon monoxide poisoning and shock following smoke inhalation: a case report.

    The objective of this study was to discuss the case of a patient with severe smoke inhalation-related respiratory failure treated with extracorporeal support. The study was set in a 12-bed multi-trauma intensive care unit at a level one trauma center and hyperbaric medicine center. The patient under investigation had carbon monoxide poisoning, and developed acute respiratory distress syndrome and cardiovascular collapse following smoke inhalation. Rapid initiation of extracorporeal support, extreme inverse-ratio ventilation and intermittent prone positioning therapy were carried out. Admission and serial carboxyhemoglobin levels, blood gases, and computerized tomography of the chest were obtained. The patient developed severe hypoxia and progressed to cardiovascular collapse resistant to resuscitation and vasoactive infusions. Veno-venous extracorporeal support was initiated. Cardiovascular parameters of blood pressure, cardiac output, and oxygen delivery were maximized; oxygenation and ventilation were supported via the extracorporeal circuit. Airway pressure release ventilation and intermittent prone positioning therapy were instituted. Following 7 days of extracorporeal support, the patient was decannulated and subsequently discharged to a transitional care facility,neurologically intact. smoke inhalation and carbon monoxide poisoning may lead to life-threatening hypoxemia associated with resultant cardiovascular instability. When oxygenation and ventilation cannot be achieved via maximal ventilatory management, extracorporeal support may prevent death if initiated rapidly.
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ranking = 26.607314532927
keywords = chest
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9/115. Use of recruitment maneuvers and high-positive end-expiratory pressure in a patient with acute respiratory distress syndrome.

    OBJECTIVE: To present the use of a novel high-pressure recruitment maneuver followed by high levels of positive end-expiratory pressure in a patient with the acute respiratory distress syndrome (ARDS). DESIGN: Observations in one patient. SETTING: The medical intensive care unit at a tertiary care university teaching hospital. PATIENT: A 32-yr-old woman with severe ARDS secondary to streptococcal sepsis. INTERVENTIONS: The patient had severe gas exchange abnormalities because of acute lung injury and marked lung collapse. Attempts to optimize recruitment based on the inflation pressure-volume (PV) curve were not sufficient to avoid dependent lung collapse. We used a recruitment maneuver using 40 cm H2O of positive end-expiratory pressure (PEEP) and 20 cm H2O of pressure controlled ventilation above PEEP for 2 mins to successfully recruit the lung. The recruitment was maintained with 25 cm H2O of PEEP, which was much higher than the PEEP predicted by the lower inflection point (P(Flex)) of the PV curve. MEASUREMENTS AND MAIN RESULTS: Recruitment was assessed by improvements in oxygenation and by computed tomography of the chest. With the recruitment maneuvers, the patient had a dramatic improvement in gas exchange and we were able to demonstrate nearly complete recruitment of the lung by computed tomography. A PV curve was measured that demonstrated a P(Flex) of 16-18 cm H2O. CONCLUSION: Accumulating data suggest that the maximization and maintenance of lung recruitment may reduce lung parenchymal injury from positive pressure ventilation in ARDS. We demonstrate that in this case PEEP alone was not adequate to recruit the injured lung and that a high-pressure recruitment maneuver was required. After recruitment, high-level PEEP was needed to prevent derecruitment and this level of PEEP was not adequately predicted by the P(Flex) of the PV curve.
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ranking = 26.607314532927
keywords = chest
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10/115. Transfusion-related acute lung injury associated with interdonor incompatibility for the neutrophil-specific antigen HNA-1a.

    BACKGROUND AND OBJECTIVES: A patient transfused with two pooled platelet concentrates became breathless. Bilateral infiltrates were seen on chest X-ray. A diagnosis of transfusion-related acute lung injury (TRALI) was made. The patient received 100% oxygen and recovered after 5 days. MATERIALS AND methods: Antibody screening, cross-matching for granulocyte and lymphocyte antibodies and typing for granulocyte antigens was undertaken. RESULTS: The patient typed as HNA-1b/HNA-1b. Granulocyte and lymphocyte antibodies were not detected in the patient's serum or in any of the donor sera by cross-match. In antibody screening against typed panel granulocytes, complement-fixing anti-HNA-1a IgM antibodies were detected in the serum of one female donor. Two of the other donors who contributed to the pooled platelet concentrate containing the HNA-1a IgM antibodies typed as HNA-1a/HNA-1b. CONCLUSION: Anti-HNA-1a IgM antibodies may have formed immune complexes with white cell fragments or soluble FcgammaRIII from HNA-1a donors in the pooled platelet concentrate and initiated TRALI.
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ranking = 26.607314532927
keywords = chest
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