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At least 847 records · Page 47Linked to original sources
PubMed2006

Spontaneous tracheal rupture after severe coughing in a 7-year-old boy.

Tracheal lacerations are rare but potentially life-threatening. They are recognized sequelae of cervical or thoracic injuries or complications of endotracheal intubation. Spontaneous tracheal rupture is extremely uncommon and has not been reported in a pediatric patient. This report is the first pediatric case of a spontaneous longitudinal laceration of the posterior membranous cervical trachea, which occurred after violent coughing in a 7-year-old boy with acute tracheobronchitis. The tracheal rupture was detected early with an endoscopic examination and computed tomography. The rupture and emphysema were small, with no major complications, and disappeared with conservative management. This rare case is presented with a review of the possible mechanism, diagnosis, and treatment.

Acute Disease↗
PubMed2004

Tracheo-bronchitis associated with Crohn's disease improved on inhaled corticotherapy.

We report a case of tracheo-bronchitis in Crohn's disease. A 23-year-old Japanese woman who had been diagnosed with Crohn's disease three years previously was hospitalized. She had been suffering from dry cough for one month. Computed tomography of the chest revealed marked thickening of the tracheal wall. Bronchoscopy showed erythematous and edematous mucosa with diffuse whitish granular lesions in the trachea and bronchi. The bronchial biopsy specimens showed non-specific inflammatory infiltrates consisting of lymphocytes and plasma cells, and hyperplasia of bronchial glands. Inhaled corticotherapy, fluticasone propionate 800 microg/day, was effective for both the inflammatory mucosa and thickened tracheal wall.

Administration, Inhalation↗
PubMed1979

Membranous laryngotracheobronchitis (membranous croup).

Membranous laryngotracheobronchitis (membranous croup), not previously described as a distinct entity, is characterized by diffuse inflammation of the larynx, trachea, and bronchi with adherent or semiadherent mucopurulent membranes in the subglottic trachea (conus elasticus) and in the upper trachea distal to the conus elasticus. We reviewed 28 cases of membranous croup diagnosed by endoscopy and/or radiographic examination. The importance of the recognition of membranous croup as a distinct entity is discussed. The characteristic radiologic findings consist of subglottic tracheal narrowing, irregularity of contour of the proximal tracheal mucosa, and sometimes detached or partially detached proximal tracheal membranes, which can be mistaken for tracheal foreign bodies.

Bronchitis↗
PubMed1980

Tracheobronchitis and sudden infant death syndrome.

In many infants who have died suddenly and unexpectedly post mortem examination reveals the presence of a non-suppurative tracheobronchitis. The role of the tracheobronchitis in the sudden death of the infant is not known. Analysis of a series of sudden infant deaths indicates that these infants die at an older age, i.e. over three months, and most frequently in colder months of the year. If, as suggested, these deaths constitute a distinct group, investigations regarding the mode of death should be undertaken separately from that in younger infants in whom no such lesions are found.

Australia↗
PubMedDate not supplied

Peritracheal fibrosis induced by sclerosing agents: a putative treatment for tracheomalacia.

Tracheomalacia is a congenital or acquired deficiency of the cartilages of the trachea. Treatment procedures include formation of external support by insertion of cartilage; bone for foreign material into the peritracheal tissue. A sclerosing agent, sodium morrhuate, was injected in the peritracheal tissue, blindly or after skin incision and subcutaneous tissue. In both groups peritracheal granulation tissue and inflammation evolved into peritracheal fibrosis surrounding the cartilage at the site of injection. The reaction was more pronounced following incision of the skin. No fibrosis was observed in a control group following hypertonic saline injection. The results suggest that injection of sclerosing agents might be considered as a conservative mode of treatment in tracheomalacia, by producing peritracheal fibrosis as external support.

Animals↗
PubMed1987

Necrotizing tracheobronchitis in intubated newborns: a complication of assisted ventilation.

This report describes a newly recognized iatrogenic lesion in newborns that we have termed necrotizing tracheobronchitis (NTB). Although it is related to assisted ventilation, it is different from previously described tracheal lesions in that it is most severe distal to the tip of the endotracheal tube and manifests a characteristic basophilic necrosis of the tracheal mucosa. Sloughing of tracheal mucosa, which occurs in the later stages, can cause respiratory obstruction. The lesion occurs over a wide range of gestational ages and birth weights as well as ventilatory rates, pressures, and supplemental oxygen concentrations. The severity of the lesion is related to the duration of ventilation. We believe NTB to be related to airflow through the endotracheal tube rather than to the effects of the tube itself because the lesion is worst beyond the end of the tube and extends into the major bronchi. A grading system is presented.

Bronchitis↗
PubMed1988

Necrotizing tracheobronchitis following high-frequency ventilation: effect of lung deflation.

A piglet model of acute respiratory failure was used to determine whether necrotizing tracheobronchitis (NTB) reported during high-frequency pneumatic flow interrupter (HFFI) ventilation could be minimized by a different ventilatory strategy. Twenty-one piglets (mean age 3.8 days, average weight 1.4 kg) were anesthetized with ketamine and given Pavulon prior to saline lung lavage. Femoral vessels were cannulated for measurements of blood pressures, arterial blood gases (ABG), and fluid administration. Airway pressures were measured 5 mm above the endotracheal tube tip. To allow for lung deflation, HFFI (10 Hz) was programmed to pause for 1 sec either 5 (HFFI5) or 12 times per min (HFFI12). Seven animals were assigned to each of the treatment groups and to a conventional mechanical ventilation (CMV) control. All animals were kept on 1.0 FIO2 with ventilators adjusted to maintain ABG (pO2 = 50-100 mmHg and pCO2 = 30-40 mmHg). After 6 h of ventilation, the animals were sacrificed and their lungs inflated with formalin to 40 cm H2O. Sections were obtained from trachea, carina, mainstem, and hilar bronchi. An airway injury score (AIS) was calculated after "blinded" microscopic evaluation. There was no difference in total AIS between CMV (2.4) and HFFI12 (8.6) but a statistically significant difference (p less than 0.05) existed between CMV and HFFI5 (14.1). NTB was limited to the trachea during HFFI12 but extended down to the hilar bronchi during HFFI5. More frequent lung deflations reduce the severity and distribution of NTB during HFFI ventilation.

Animals↗
PubMed1990

Necrotizing tracheobronchitis following high frequency ventilation: effect of hydrocortisone.

A piglet model of acute respiratory failure was used to determine whether necrotizing tracheobronchitis (NTB) produced during high-frequency pneumatic flow interrupter (HFFI) ventilation could be attenuated by prior administration of 2 mg/kg hydrocortisone IV. Fourteen piglets (means age 3.6 days, means wt 1.4 kg) were anesthetized and paralyzed before saline lung lavage. The animals were randomly assigned to either placebo (P) or hydrocortisone (H) group. Continuous HFFI (10 Hz) was interrupted five times per minute by a 1-second deflationary pause. All animals were kept on 1.0 FI02 with ventilators adjusted to maintain adequate arterial blood gases. Airway pressures were similar for both groups. After 8 hours of ventilation the animals were sacrificed and their lungs inflated with formalin to 40 cm H2O. Sections were obtained from trachea, carina, main stem, and peripheral bronchi. A total airway injury (TAIS) was calculated by a pathologist unaware of treatment assignment. There was a significant difference (p less than 0.01, Wilcoxon rank sum) in TAIS scores between P (means 21.3) and H (means 7.8). In five out of seven P animals and in one out of seven H animals, NTB was severe and extended to the hilar bronchi. Although NTB is multifactorial in origin, the prior use of hydrocortisone may decrease the severity and extent of lesions by modifying the inflammatory response to this specific airway injury.

Animals↗
PubMedDate not supplied

Necrotizing tracheobronchitis (NTB) following high frequency ventilation: role of an angiotensin converting enzyme inhibitor.

The purpose of this investigation was to study the effect of an angiotensin converting enzyme inhibitor (enalaprilat) on the morphologic manifestations of experimentally induced necrotizing tracheobronchitis (NTB). Twenty piglets were anesthetized before saline lung lavage. High frequency flow interrupter (HFFI) ventilation was used with a strategy known to produce NTB. Animals were randomly assigned to receive IV enalaprilat 0.1 mg/kg (ENP-Hi), enalaprilat 0.01 mg/kg (ENP-Lo), or saline (C). After 8 hours of ventilation, the piglets were sacrificed. Total airway injury scores (mean +/- S.D.) were 1.2 +/- 0.7 for ENP-Hi, 0.2 +/- 0.2 for ENP-Lo, and 21.3 +/- 16 for group C. Enalaprilat minimizes NTB lesions in neonatal piglets exposed to high frequency oscillatory ventilation. Although the origin of NTB is multifactorial, airway mucosa ischemia may play an important role. Enalaprilat may compensate for the reduction of mucosal blood flow by limiting formation of angiotensin II and/or preventing degradation of bradykinin.

Angiotensin-Converting Enzyme Inhibitors↗