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Query: UMLS:C0476273 (respiratory distress)
 19,632 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The study of 16 newborn of birthweight less than or equal to 2,200 g characterized by a common point: the presence of PLACENTA PRAEVIA IN THE MOTHER, enabled us to come to grips with the severe respiratory distress that these newborn can have. From the clinical standpoint: there is always early respiratory distress. From the radiological standpoint: by far the most dominant pathology was interstitial edema, giving rise to a WET LUNG. From the biochemical standpoint: the blood gases were characterized in a certain number of cases by hypoxemia which was refractory to the usual forms of treatment. From the mechanical standpoint: measurements carried out in 4 patients confirmed the extraordinary fall in these patients' compliance. The clinical, radiological, blood gas and mechanical analysis enabled one to differenciate 2 main types of indications for artificial ventilation: -- acute hypoxemia, -- the idea of an increased need for oxygen. In these 2 types of indications for artificial ventilation, it was apparent that the treatment of choice is constant positive pressure which may or may not be combined with intermittent positive pressure. With this treatment technique, none of the patients progressed to massive atelectasis. It can be said that with the advent of techniques of ventilation by high pressure combining IPP with CPP, one has definitively eliminated from this pathological picture, the principal cause of death: --anoxia due to massive alveolar collapse.
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PMID:[Severe respiratory distress with stubborn hypoxemia in newborn infants whose mothers had had placenta previa]. 0 84

A light-weight system for continuous positive airway pressure (CPAP) based on a nasal vestibular cannula and a miniature gas jet has been tried out in 29 newborns with severe idiopathic respiratory distress syndrome (IRDS) and nine infants suffering from respiratory insufficiency caused by lower respiratory tract infections. In infants with IRDS, a permanent effect was achieved in 20% when the birth weight was below 1501 g, and in 74% when the birth weight was higher. The infants with lower respiratory tract infections all recovered without further ventilatory support. Significant complications occurred in only two infants, both of whom developed pneumothorax. The system forms a simple and safe alternative to existing nasal CPAP systems suitable for use in newborns as well as older infants with lung diseases resulting in alveolar collapse.
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PMID:Treatment of respiratory insufficiency in infants using nasal CPAP and a gas jet. 36 14

The chest roentgenograms of 142 neonates who survived mechanical ventilation for respiratory distress syndrome (N = 99) and prolonged apnea (N = 43) were reviewed. Thirty-seven infants had bronchopulmonary dysplasia (BPD) and 17 of these developed lobar hyperinflation of the right lower lobe and collapse of the right upper lobe. Regional lung function was measured with a xenon 133 technique in three of these infants and in five other patients who either died or were lost to follow-up. All had BPD with right lower lobe overinflation. Ventilation was less in the lower regions than the upper regions bilaterally (P less than .001), indicating that the hyperinflation of the lower lobes was not compensatory for upper lobe collapse but was due to emphysema. Mean regional perfusion was equal in the upper and lower regions of the chest. This preferential distribution of lobaremphysema and ipsilateral atelectasis in BPD tended to present and regress simultaneously, but in many infants it lasted as long as eight weeks. Only one infant with persistent atelectasis developed pneumonia. The best mode of therapy appears to be supportive.
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PMID:Preferential distribution of lobar emphysema and atelectasis in bronchopulmonary dysplasia. 37 67

In infants with transposition of the great arteries (TGA) tracheobronchial obstruction may occur as a result of compression by a dilated posterior pulmonary artery, especially if there is a large interventricular septal defect with its attendant large pulmonary blood flow and high pressure. Banding of the pulmonary artery may give temporary relief. A patient with TGA had collapse of the left lung at 2 months of age, following atrial septectomy. Bronchoscopy and bronchography revealed extrinsic compression of the left main bronchus. Banding of the pulmonary artery at 6 months of age relieved the respiratory distress. At 8 years of age atelectasis of the left lung recurred following a Mustard procedure. Two additional procedures were attempted to decrease the pressure of the pulmonary artery on the bronchus but these were unsuccessful. At age 9 years, pneumonectomy, her sixth thoracotomy, was performed as a final attempt to relieve the respiratory problem caused by persistent atelectasis. She is now 17 years of age and has remained asymptomatic during the last 8 years.
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PMID:Pneumonectomy for intractable left bronchial compression in d-transposition of the great arteries. 76 61

An acute respiratory distress syndrome in 10 adult dogs was usually preceded by vomiting, anorexia and lethargy followed, after a short interval, by dyspnoea. The dyspnoea became increasingly severe, despite oxygen therapy, and cyanotic respiratory failure ensued. All 10 dogs died or were killed after illnesses lasting between one and eight days. Necropsies revealed pulmonary congestion, oedema, collapse and haemorrhage with loss of alveolar epithelial cells. Early alveolar fibrosis was also found. Paraquat was identified in post mortem samples from four of the 10 dogs.
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PMID:Acute respiratory distress in the dog associated with paraquat poisoning. 86 Mar 82

Tension pneumomediastinum is an infrequently diagnosed but potentially fatal condition. The collection of air under pressure in the mediastinum compromises venous return to the heart and compresses major bronchi, leading to sudden and profound cardiovascular collapse. Although its mechanism was elucidated in the 1940's, when tension pneumomediastinum was most commonly a complication of tuberculosis, the same mechanism explains its formation in neonates with respiratory distress and in patients ventilated with volume respirators. Awareness of this condition will lead to more frequent diagnosis, but, more important, will also lead to prompt mediastinotomy and relief of this rapidly fatal condition.
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PMID:Tension pneumomediastinum. 90 65

One of the accepted complications of colonoscopy is perforation. This is known to occur in greater frequency in patients having undergone previous pelvic or colonic surgery, as well as patients suffering from diverticulosis. A case is presented of colonic perforation during diagnostic examination in an area of adhesions secondary to pelvic surgery. Immediately after the perforation, the patient entered into vascular collapse and respiratory distress, with a distended abdomen. The introduction of a large bore intravenous catheter into the abdominal cavity with the release of the pneumoperitoneum resulted in an instantaneous return of vital signs and the patient subsequently underwent surgery and recovered. It is felt that this method of emergency treatment can be life-saving in a patient perforating during colonoscopy.
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PMID:Colonoscopic perforation: its emergency treatment. 102 80

Harrison could demonstrate the benefit of exspiratory grunting in respiratory distress syndrome. Probably it delays alveolar collapse and promotes gasexchange. Since the publication of Gregory different methods for therapeutic use were practised. Our report deals with own investigations with continous negative chest wall pressure (CNP). Effect, indication and complications are discussed especially.
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PMID:[Positive end-exspiratory pressure for the treatment of respiratory distress syndrome with indirect increase of pressure. Clinical experience with the Pulmarca box (author's transl)]. 116 78

Pulmonary surfactant, a protein-phospholipid mixture, maintains surface tension at the lung epithelium/air interface preventing alveolar collapse during respiration. For mammals appropriate developmental production of surfactant is necessary for adaptation to the air breathing environment. Deficiency of pulmonary surfactant results in respiratory distress syndrome (RDS), a leading cause of death in premature infants. Recently, three lung-specific pulmonary surfactant proteins designated SP-A, SP-B, and SP-C have been described. Cloned sequences for the genes that encode each of these proteins have been partially characterized in humans and other species. Analysis of interspecific backcross mice has allowed us to map the chromosomal locations of these three genes in the mouse. The gene encoding SP-A (Sftp-1) and the gene encoding SP-C (Sftp-2) both map to mouse chromosome 14, although at separate locations, while the gene encoding SP-B (Sftp-3) maps to chromosome 6. The mouse map locations determined in this study for the Sftp genes are consistent with the locations of these genes on the human genetic map and the syntenic relationships between the human and the mouse genomes.
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PMID:Chromosomal localization of three pulmonary surfactant protein genes in the mouse. 134 79

Exercise is a physical cause of allergic reactions, including exercise-induced anaphylaxis (EIAna), exercise-induced urticaria (EIU), exercise-induced asthma (EIA), and exercise-induced rhinitis (EIR). Since its first description in 1979, EIAna has been reported with variable clinical manifestations, with exercise alone, and in combination with food ingestion. Elevated serum histamine levels and cutaneous mast cell degranulation have been noted. Exercise-induced urticaria appears as small, punctate lesions that differ from the classic coalescent type seen with EIAna. Variant forms of EIAna with cholinergic urticarial lesions manifesting systemic collapse and/or respiratory distress have been studied. Exercise-induced urticaria and cold-induced urticaria may cause elevated plasma histamine levels coincident with the onset of pruritus and hives. Theories accounting for EIA include respiratory heat loss, water loss, and mast cell activation. Although some studies have shown increased plasma histamine with EIA, others have not. Recently, bronchoalveolar lavage in atopic subjects with EIA has been evaluated preexercise and postexercise, with no significant differences in histamine or tryptase, suggesting a pathogenesis of EIA independent of the mast cell. Exercise-induced rhinitis, with varying degrees of rhinorrhea, congestion, and sneezing, has been increasingly recognized in athletes who run, cycle, and ski. Cold-air-induced rhinorrhea in laboratory challenges displays a mediator release pattern similar to that produced by allergen-induced nasal challenges. Therapeutically, H1 antihistamines are recommended for EIAna both as pretreatment and acute therapy. H1 antihistamines may be helpful in EIU, but are recommended for EIAna both as pretreatment and acute therapy.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Exercise-induced allergies: the role of histamine release. 137 Oct 41


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