Cases reported "Barotrauma"

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1/38. Successful use of high frequency oscillatory ventilation for pneumomediastinum.

    An infant with pneumomediastinum due to mechanical ventilation was successfully treated using high frequency oscillatory ventilation (HFOV). The 3-month-old male had undergone ligation of a patent ductus arteriosus and suffered from barotraumatic pneumomediastinum in the postoperative period. Computed tomography of the chest confirmed the diagnosis. While using conventional mechanical ventilation the respiratory failure worsened. HFOV was instituted and the patient improved. A lower airway pressure by this mode of ventilation provided significant advantages in the patient with an air leak. He was subsequently extubated and discharged home.
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keywords = chest
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2/38. Infraorbital hypesthesia after maxillary sinus barotrauma.

    We report a case of a diver who suffered an episode of maxillary sinus barotrauma that presented with decreased sensation over the cutaneous distribution of the infraorbital nerve after an ascent which produced facial pain and crepitus. This case illustrates a potential confusion between a decompression sickness etiology and a barotraumatic etiology for the observed sensory deficit. The clinical features of this case were most consistent with a barotraumatic etiology for the findings noted. The anatomy of the trigeminal nerve and previous reports of cranial nerve deficits following barotrauma are reviewed.
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ranking = 0.14811681485177
keywords = pain
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3/38. Pulmonary cyst and cerebral arterial gas embolism in a hypobaric chamber: a case report.

    This is a report of an aircrew member who suffered a serious physiological incident in the form of pulmonary barotrauma and cerebral arterial gas embolism during hypobaric chamber training, and who subsequently was shown to have a cyst in the upper lobe of the left lung. The likely origin of the cyst is discussed, as well as the aeromedical disposition following thoracotomy and apical segmentectomy to remove the cyst.
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ranking = 0.0074181598196298
keywords = upper
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4/38. Delayed onset pulmonary barotrauma or decompression sickness? A case report of decompression-related disorder.

    A-24-yr-old male professional diver began to complain of substernal pain 3 h after a controlled ascent from a dive of less than 40 ft of sea water (fsw). The diving master who supervised his dive and the physicians who examined him on presentation suspected pulmonary barotrauma rather than decompression sickness (DCS) because he had only descended to a depth of 32 fsw. Hyperbaric oxygen therapy (HBO) by U.S. Navy treatment Table VI was implemented because of his progressively worsening pain. HBO was apparently effective and a relapse was not seen. The author cannot label his condition based on the conventional classification categories, such as decompression sickness (DCS), barotrauma or even decompression illness. This case report is offered as a topic for consideration in the controversy over decompression-related disorders.
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ranking = 0.29623362970354
keywords = pain
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5/38. Cerebral arterial gas embolism following diagnostic bronchoscopy: delayed treatment with hyperbaric oxygen.

    PURPOSE: To describe a clinical scenario consistent with the diagnosis of cerebral arterial gas embolism (CAGE) acquired during an outpatient bronchoscopy. Our discussion explores the mechanisms and diagnosis of CAGE and the role of hyperbaric oxygen therapy. CLINICAL FEATURES: A diagnostic bronchoscopy was performed on a 70-yr-old man who had had a lobectomy for bronchogenic carcinoma three months earlier. During the direct insufflation of oxygen into the right middle lobe bronchus, the patient became unresponsive and developed subcutaneous emphysema. Immediately, an endotracheal tube and bilateral chest tubes were placed with resultant improvement in his oxygen saturation. However, he remained unresponsive with extensor and flexor responses to pain. Later, in the intensive care unit, he exhibited seizure activity requiring anticonvulsant therapy. Sedation was utilized only briefly to facilitate controlled ventilation. Investigations revealed a negative computerized tomography (CT) scan of the head, a normal cerebral spinal fluid examination, a CT chest that showed evidence of barotrauma, and an abnormal electroencephalogram. Fifty-two hours after the event, he was treated for presumed CAGE with hyperbaric oxygen using a modified united states Navy Table 6. Twelve hours later he had regained consciousness and was extubated. He underwent two more hyperbaric treatments and was discharged from hospital one week after the event, fully recovered. CONCLUSION: A patient with presumed CAGE made a complete recovery following treatment with hyperbaric oxygen therapy even though it was initiated after a significant time delay.
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ranking = 2.1481168148518
keywords = chest, pain
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6/38. Selective fiberoptic left main-stem intubation for severe unilateral barotrauma in a 24-week premature infant.

    A 24-week premature infant developed severe right-sided pulmonary barotrauma secondary to mechanical ventilation for respiratory distress syndrome (RDS). High-frequency oscillatory ventilation and permissive hypercapnia were initiated. A chest tube was placed to relieve a pneumothorax, and a catheter was inserted into an air-filled cyst for drainage. These maneuvers failed to improve the child's respiratory status. The child's left main-stem bronchus was then successfully fiberoptically intubated for single-lung ventilation in order to reduce the unilateral barotrauma. Single-lung ventilation was effectively and safely continued for 5 days, with complete resolution of the pulmonary barotrauma.
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keywords = chest
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7/38. Pulmonary barotrauma-induced cerebral arterial gas embolism with spontaneous recovery: commentary on the rationale for therapeutic compression.

    Pulmonary barotrauma-induced cerebral arterial gas embolism (CAGE) continues to complicate compressed gas diving activities. Inadequate lung ventilation secondary to inadvertent breath holding or rapid buoyant ascent can quickly generate a critical state of lung over-pressure. Pulmonary over-pressurization may also occur as a consequence of acute and chronic pulmonary pathologies. Resulting barotrauma frequently causes structural failure within the terminal distal airway. Respiratory gases are then free to embolize the systemic circulation via the pulmonary vasculature and the left heart. The brain is a common target organ. Bubbles that enter the cerebral arteries coalesce to form columns of gas as the vascular network narrows. Small amounts of gas frequently pass directly through the cerebral circulation without occlusion. Larger columns of gas occlude regional brain blood flow, either transiently or permanently, producing a stroke-like clinical picture. In cases of spontaneous redistribution, a period of apparent recovery is frequently followed by relapse. The etiology of relapse appears to be multifactoral, and chiefly the consequence of a failure of reperfusion. Prediction of who will relapse is not possible, and any such relapse is of ominous prognostic significance. It is advisable, therefore, that CAGE patients who undergo spontaneous recovery be promptly recompressed while breathing oxygen. Therapeutic compression will serve to antagonize leukocyte-mediated ischemia-reperfusion injury; limit potential re-embolization of brain blood flow, secondary to further leakage from the original pulmonary lesion or recirculation of gas from the initial occlusive event; protect against embolic injury to other organs; aid in the resolution of component cerebral edema; reduce the likelihood of late brain infarction reported in patients who have undergone spontaneous clinical recovery; and prophylax against decompression sickness in high gas loading dives that precede accelerated ascents and omitted stage decompression.
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ranking = 11.040708230828
keywords = breathing
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8/38. Continuous left hemidiaphragm sign revisited: a case of spontaneous pneumopericardium and literature review.

    In pneumopericardium, a rare but potentially life threatening differential diagnosis of chest pain with a broad variety of causes, rapid diagnosis and adequate treatment are crucial. In upright posteroanterior chest radiography, the apical limit of a radiolucent rim, outlining both the left ventricle and the right atrium, lies at the level of the pulmonary artery and ascending aorta, reflecting the anatomical limits of the pericardium. The band of gas surrounding the heart may outline the normally invisible parts of the diaphragm, producing the continuous left hemidiaphragm sign in an upright lateral chest radiograph. If haemodynamic conditions are stable, the underlying condition should be treated and the patient should be monitored closely. Acute haemodynamic deterioration should prompt rapid further investigation and cardiac tamponade must be actively ruled out. Spontaneous pneumopericardium in a 20 year old man is presented, and its pathophysiology described.
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ranking = 3.1481168148518
keywords = chest, pain
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9/38. barotrauma as a possible cause of aneurysmal subarachnoid hemorrhage. Case report.

    The authors report the case of a 47-year-old man who suffered a diving accident. After regaining consciousness he experienced severe headache. He was initially treated for barotrauma, but the persistent headache led to diagnostic imaging that revealed an aneurysmal subarachnoid hemorrhage. To the authors' knowledge, this is the first report of a ruptured brain aneurysm associated with barotrauma.
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ranking = 1.0600102415813
keywords = headache
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10/38. Surgical emphysema following nose blowing.

    A 20-year-old woman developed gross surgical emphysema tracking down to the chest after an episode of nose blowing. Fortunately there were no ocular complications and the patient settled with conservative management. Follow-up showed no recurrence. The case presented illustrates the very rare complication of orbital fracture following nose blowing.
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keywords = chest
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