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Query: UMLS:C0040586 (tracheobronchitis)
 449 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Mechanical ventilation of newborn infants with respiratory distress is associated with diverse pathology of the lung. Recent reports have focused on a distinct lesion pattern of the tracheobronchial system--necrotizing tracheobronchitis. While many advanced cases of the disease proved fatal secondary to airway obstruction, others were successfully treated by removal of the occlusion. We describe two neonates with necrotizing tracheobronchitis, one of whom had a complete occlusion of the right main stem bronchus that was relieved by curettage during bronchoscopic examination.
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PMID:Necrotizing tracheobronchitis following mechanical ventilation of the newborn. 272 74

The tracheal and bronchial lesions observed are described in seven patients, presenting with respiratory distress syndrome and receiving both conventional and high frequency jet ventilation for various periods. The histological findings are related to the duration of the exposure as well as the number of pulsations administered to the tracheobronchial tree. Severe damage to the mucosa leading to acute tracheobronchitis, hyperplasia and hypersecretion of the mucosal glands may explain some of the clinical symptoms observed, especially the upper respiratory obstruction. Care should be taken to limit these changes which may lead to various degrees of stenosis in survivors receiving this mode of therapy.
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PMID:Necrotizing tracheobronchitis: a complication of high frequency jet ventilation. 313 63

To identify tracheobronchial abnormalities associated with assisted ventilation, 40 infants with respiratory distress syndrome randomized to receive either short-term (48 hours) conventional or high-frequency jet ventilation were studied. Flexible fiberoptic bronchoscopy (n = 13) was performed and/or clinical and radiographic assessments were used to evaluate for laryngeal, tracheal, and bronchial lesions. There was no bronchoscopic evidence of necrotizing tracheobronchitis after either high-frequency jet ventilation (n = 8) or conventional ventilation (n = 5). Laryngotracheomalacia and nodular vocal cords were the most common abnormalities noted, and they occurred with equal frequency in both groups. Study infants who were not bronchoscoped had no clinical or radiographic evidence of tracheal or mainstem bronchial obstruction. One patient did have microscopic evidence of necrotizing tracheobronchitis at autopsy, however. It is concluded that short-term treatment of respiratory distress syndrome with high-frequency jet ventilation may be performed without undue risk of tracheobronchial injury.
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PMID:Bronchoscopic findings in infants treated with high-frequency jet ventilation versus conventional ventilation. 318 79

To compare high-frequency jet ventilation (HFJV) with pressure-limited time-cycled conventional ventilation (CV), we randomized 41 infants with clinical and radiographic evidence of respiratory distress syndrome during the first day of life to receive either HFJV or CV. Standardized ventilatory protocols were used for 48 hours, after which CV was administered to both groups. Despite comparable oxygenation (arterial/alveolar oxygen tension ratio), mean airway pressure was lower in the HFJV group (9 +/- 2 vs 13 +/- 2 cm H2O, P less than 0.001), and thus the arterial/alveolar oxygen tension ratio corrected for mean airway pressure was improved in the HFJV group (P less than 0.05). PaCO2 was lower during HFJV (37 +/- 3 vs 42 +/- 3 mm Hg, P less than 0.05) despite a comparable peak inspiratory pressure. The incidence of air leaks, progression of intraventricular hemorrhage, and mortality during the 48-hour period did not differ between the two groups. Bronchoscopies in eight infants given HFJV and five given CV revealed no microscopic evidence of necrotizing tracheobronchitis, but one infant given HFJV had evidence of necrotizing tracheitis at autopsy. We conclude that for 48 hours during the acute stage of respiratory distress syndrome, HFJV can maintain adequate gas exchange at lower mean airway pressure than during CV, without an increase in the incidence of side effects.
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PMID:Randomized trial of high-frequency jet ventilation versus conventional ventilation in respiratory distress syndrome. 354 78

Pulmonary interstitial emphysema is one of the most serious complications of the respiratory distress syndrome. Its presence significantly increases morbidity and mortality. Preliminary reports have demonstrated the success of high-frequency ventilation in the treatment of pulmonary interstitial emphysema. In a previous investigation, we were able to develop a formula for predicting death in infants weighing less than 1,500 g with pulmonary interstitial emphysema. Using this subgroup of severely affected infants, we studied the efficacy of high-frequency ventilation in nine infants. Using the Volumetric Diffusive Respirator, we observed improvement in all respiratory values measured (pH, PCO2, and PO2), a significantly decreased mean airway pressure (MAP), and improvement in neonatal mortality. Complications of severe bleeding diatheses, hypotension, bronchopulmonary dysplasia, and necrotizing tracheobronchitis were observed. Our investigation was the first to systematically choose infants who might benefit from high-frequency ventilation and to compare them with similar infants with known outcomes. We realize that the study was rescue in nature using historical controls, but we felt compelled to assure the safety of the device before randomizing less sick infants. High-frequency ventilation appears to be effective in the acute management of low birth weight infants with pulmonary interstitial emphysema.
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PMID:High-frequency ventilation in the treatment of infants weighing less than 1,500 grams with pulmonary interstitial emphysema: a pilot study. 358 46

A 33-week-gestation infant with respiratory distress syndrome is reported. At five days of age, acute life-threatening tracheal obstruction occurred, which was relieved after removal of a plug during bronchoscopy. Histologic examination of the plug revealed partially necrotic tracheal mucosa, compatible with the diagnosis of necrotizing tracheobronchitis. At 31 days of age, obstruction recurred due to the development of a tracheal stricture, which resolved after tracheal reintubation (to maintain patency) and corticosteroid therapy. Tracheal stricture may be a long-term complication of necrotizing tracheobronchitis, when the initial episode does not lead to death from obstruction.
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PMID:Necrotizing tracheobronchitis: case report. 395 17

Necrotizing tracheobronchitis (NTB) is a recently recognized cause of tracheal obstruction in the mechanically ventilated neonate. This process involves inflammation and necrosis of the mucosa of the distal trachea and mainstem bronchi. The sloughing of this material into the tracheal lumen results in plugging and acute respiratory distress. We documented this diagnosis in 19 infants. Four were diagnosed at autopsy. Fifteen had emergency bronchoscopy performed in the neonatal intensive care unit with removal of the obstructing debris. Ten of these 15 neonates survived (66.7%). The diagnosis of necrotizing tracheobronchitis should be suspected in those neonates requiring positive pressure ventilation in whom a sudden unexplained increase in ventilatory requirements develops. This is often associated with hypercarbia and a history of high-peak inspiratory pressures with or without hypoxia. Emergency bronchoscopy in these neonates is necessary both for diagnosis and treatment of the necrotizing tracheobronchitis.
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PMID:Necrotizing tracheobronchitis: a new indication for emergency bronchoscopy in the neonate. 404 64

A 3-month-old infant with tetralogy of Fallot and absent pulmonary valve developed necrotizing tracheobronchitis following a radical repair. Right ventricular reconstruction using an equine pericardial valved conduit and plication of the main pulmonary arteries relieved compression of the left main bronchus by the dilated pulmonary artery. However, respiratory distress increased when bronchitis developed. Eventually, both main stem bronchi became stenotic secondary to inflammation, and the patient died 154 days following surgery. Necrotizing tracheobronchitis is a potentially lethal complication in patients with tetralogy of Fallot and absent pulmonary valve.
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PMID:[Necrotizing tracheobronchitis following radical repair in tetralogy of Fallot with absent pulmonary valve--a case report]. 805 26

Burns due to fire-eating are relatively rare. In a short period (6 months) four patients (men aged 9, 22, 27, and 15) were sent to the Burns Centre of the Martini Hospital of Groningen, the Netherlands. They had used car petrol in stead of paraffin oil. Their burns were not very severe but they were hospitalized because of the risk of an inhalation injury, especially oedema of the glottis. Signs related to inhalation injury are: burned hairs of the nose, smut on the mucous membrane in the mouth and nose or in the sputum, hoarseness, increase of tachypnoea and dyspnoea. Burns in the face are suggestive of an inhalation injury, of which there are three forms: oedema of the glottis, tracheobronchitis, and acute respiratory distress syndrome (ARDS). The four patients did not develop inhalation injury and recovered completely.
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PMID:[Fire-eaters, a breath-taking act?]. 927 49

A 29-year-old asthmatic with a family history of atopy inhaled a large dose of fumes from sizzling, steaming seafood being served to another client in a restaurant. She immediately developed respiratory distress, loss of consciousness and cyanosis; she also vomited profusely, aspirated and died with 58 min of the onset of symptoms. Autopsy revealed epiglottitis and tracheobronchitis associated with an infiltration by mast cells. The blood IgE was marginally elevated. Death was attributed to upper respiratory airway obstruction due to aspiration of gastric contents, and to bronchospasm following the inhalation of steaming vapour from the seafood dish. The practice of transporting a platter of sizzling, steaming seafood across dining rooms and restaurants with its aroma permeating the entire premises could prove fatal for atopic customers.
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PMID:Inhalation of steaming seafood aroma: sudden death in an asthmatic. 1533 27


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