1/91. Tension pneumothorax complicating diagnostic upper endoscopy: a case report.Hypoxemia is common during various endoscopic procedures and may result from a variety of causes. These causes range from benign and otherwise easily reversible events like oversedation to potentially life threatening complications such as pneumothorax. Although pneumothorax has been reported secondary to gastrointestinal perforation as a complication of various therapeutic endoscopic procedures, there has been no report of pneumothorax without perforation. We report a case of a patient who developed severe hypoxemia and hemodynamic instability during diagnostic upper endoscopy as a result of pneumomediastinum and tension pneumothorax in the absence of any signs of gastrointestinal perforation and comment on various possible mechanisms. Immediate endotracheal intubation and bilateral chest tube placement resulted in prompt return of the patient's oxygenation and vital signs back to normal. This report enlarges the list of possible causes of hypoxemia during endoscopy and shows the importance of early and prompt recognition, which allowed directed therapy with a good outcome.- - - - - - - - - - ranking = 1keywords = chest (Clic here for more details about this article) |
2/91. Isolated longitudinal rupture of the posterior tracheal wall following blunt neck trauma.The authors report 3 female children (4, 5 and 12 years old) who suffered an isolated rupture of the posterior tracheal wall (membranous part) following a minimal blunt trauma of the neck. Such tracheal ruptures often cause a mediastinal and a cutaneous thoraco-cervical emphysema, and can also be combined with a pneumothorax. The following diagnostic steps are necessary: X-ray and CT of the chest, tracheo-bronchoscopy and esophagoscopy. The most important examination is the tracheo-bronchoscopy to visualize especially the posterior wall of the trachea. Proper treatment of an isolated rupture of the posterior tracheal wall requires knowledge about the injury mechanisms. The decision concerning conservative treatment or a surgical intervention is discussed. In our 3 patients we chose the conservative approach for the following reasons: 1) The lesions of the posterior tracheal wall were relatively small (1 cm, 1.5 cm, 3 cm) and showed a good adaptation of the wound margins. 2) No cases showed an associated injury of the esophageal wall. All of our patients had an uneventful recovery, the lesion healed within 10 to 14 days, and follow-up showed no late complications.- - - - - - - - - - ranking = 1keywords = chest (Clic here for more details about this article) |
3/91. subcutaneous tissue emphysema of the hand secondary to noninfectious etiology: a report of two cases.subcutaneous emphysema of the hand can be benign and noninfectious in origin. Emphysema from gas-forming organisms is associated with systemic symptoms, whereas benign subcutaneous emphysema is not. High-pressure pneumatic tool injuries are a well-known cause of subcutaneous emphysema. Minor wounds in the web space skin may result in a transport of air across the defect, acting like a ball valve mechanism to trap and then force the air into the subcutaneous tissue, as illustrated by 1 of our patients. In the second patient, use of a high-vibration tool without apparent breach of skin was associated with extensive subcutaneous emphysema. The benign nature of the emphysema was revealed by a lack of local pain and inflammation in the presence of extensive crepitus and a lack of systemic symptoms. A noninfectious cause should always be considered. This may prevent unnecessary surgical intervention, which occurred in 1 of the 2 cases presented here.- - - - - - - - - - ranking = 0.021637914036857keywords = pain (Clic here for more details about this article) |
4/91. subcutaneous emphysema and pneumomediastinum after dental extraction.Pneumomediastinum, pneumothorax, and subcutaneous emphysema can occur occasionally after a surgical procedure. Facial swelling is a common complication of dental management. The occurrence of subcutaneous emphysema, pneumothorax, and pneumomediastinum after dental procedures is rare. We present a case with subcutaneous emphysema of the upper chest, neck, chin, and pneumomediastinum after a tooth extraction and discuss the possible mechanism of subcutaneous emphysema. To prevent these complications during dental procedures, dental hand pieces that have air coolant and turbines that exhaust air in the surgical field should not be used.- - - - - - - - - - ranking = 1keywords = chest (Clic here for more details about this article) |
5/91. pneumothorax necessitans presenting as a presternal pneumothoracocele.A 31-year-old woman who is an intravenous drug abuser developed sternoclavicular joint infection with mediastinal and subcutaneous tissue abscesses that communicated through an erosion in the manubrium caused by osteomyelitis. air entrapment from a subsequent apical pneumothorax formed a localized anterior "pneumothoracocele." We referred to this condition as "pneumothorax necessitans," and we suggest including it in the differential diagnosis of anterior chest wall masses.- - - - - - - - - - ranking = 1keywords = chest (Clic here for more details about this article) |
6/91. The CT fallen-lung sign.On chest radiograph, the diagnosis of tracheobronchial tear is usually suspected because of the persistence of a pneumothorax after chest tube insertion. Since this radiographic pattern is nonspecific, the diagnosis is usually made by bronchoscopy and delayed. The fallen-lung sign consists in the fall of the collapsed lung away from the mediastinum occurring when the normal central bronchial anchoring attachment of the lung is disrupted. In contrast to the persistent pneumothorax, this sign is specific but rarely observed. Our purpose is to present the corresponding CT patterns observed in two cases of right stem bronchus tear, consisting in a caudal-dependent displacement of the right upper lobe bronchus which becomes obliquely oriented.- - - - - - - - - - ranking = 2keywords = chest (Clic here for more details about this article) |
7/91. subcutaneous emphysema and pneumomediastinum after endotracheal anaesthesia.INTRODUCTION: We report a case of subcutaneous emphysema and pneumomediastinum that presented postoperatively after tracheal extubation. CLINICAL PICTURE: A 51-year-old man had an uneventful anaesthesia lasting about 6.5 hours. intubation was performed by a very junior medical officer and was considered difficult. He developed sore throat, chest pain, numbness of both hands and palpable crepitus around the neck postoperatively. Chest X-ray revealed diffuse subcutaneous emphysema, pneumomediastinum and possible pneumopericardium. TREATMENT: He was treated conservatively with bed rest, oxygen, analgesia, antibiotic prophylaxis, reassurance and close monitoring. OUTCOME: The patient made an uneventful recovery. CONCLUSIONS: We discussed the possible causes.- - - - - - - - - - ranking = 2.4837060072434keywords = chest pain, chest, pain (Clic here for more details about this article) |
8/91. Pneumomediastinum acquired by glass blowing.Pneumomediastinum is uncommon. We present a case of spontaneous pneumomediastinum, which occurred in a young man whose profession is glass blowing. He presented not only with typical complaints of chest pain and odynophagia, but also with the unusual complaint of a "foreign body" sensation in the middle of his chest.- - - - - - - - - - ranking = 3.4837060072434keywords = chest pain, chest, pain (Clic here for more details about this article) |
9/91. Spontaneous subcutaneous temporal emphysema.The presence of air in the temporal regions is an uncommon presentation of spontaneous pneumomediastinum. As terminal alveoli rupture, air dissects along bronchovascular shafts. Usually, air travels either in a superior or inferior direction. Thus, extensive spontaneous subcutaneous emphysema accompanied by both cervical and retroperitoneal emphysema is rarely encountered. We present an unusual case of spontaneous pneumomediastinum, pneumoretroperitoneum, and cervical and facial emphysema presenting as bilateral painless temporal swelling. To our knowledge, this association has not been reported. Treatment involves observation for potentially life-threatening sequelae.- - - - - - - - - - ranking = 0.021637914036857keywords = pain (Clic here for more details about this article) |
10/91. Bilateral pneumothorax with extensive subcutaneous emphysema manifested during third molar surgery. A case report.This report describes a case of bilateral pneumothorax with extensive subcutaneous emphysema in a 45-year-old man that occurred during surgery to extract the left lower third molar, performed with the use of an air turbine dental handpiece. Computed tomographic scanning showed severe subcutaneous emphysema extending bilaterally from the cervicofacial region and the deep anatomic spaces (including the pterygomandibular, parapharyngeal, retropharyngeal, and deep temporal spaces) to the anterior wall of the chest. Furthermore, bilateral pneumothorax and pneumomediastinum were present. In our patient, air dissection was probably caused by pressurized air being forced through the operating site into the surrounding connective tissue.- - - - - - - - - - ranking = 1keywords = chest (Clic here for more details about this article) |
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