Tracheal Schwannoma Presenting as Subcutaneous Emphysema and Pneumomediastinum.

Primary tracheal schwannomas are rare benign tumours. This is a case report, and therefore, no specific methods or results are applicable. We here report a case of a tracheal schwannoma in an early adolescent girl presenting with subcutaneous emphysema and symptoms of airway obstruction. Tracheal resection and reconstruction by primary anastomosis were performed. Pathology confirmed the diagnosis of tracheal schwannoma. This is an unusual life-threatening presentation of a benign rare tracheal tumour with a challenging approach to management.

How to do bedside mediastinal decompression in tension pneumomediastinum.

Tension pneumomediastinum is uncommon but it is a rapidly progress condition that can lead to cardiogenic shock. Mediastinal decompression is an emergency procedure and the knowledge of this technique is a life-saving treatment.

Surgical treatment of tension pneumomediastinum in patients with covid-19 at the field hospital: a case series.

BACKGROUND: Tension pneumomediastinum is one of the most serious complications in COVID-19 patients with respiratory distress requiring invasive mechanical ventilation. This complication can lead to rapid hemodynamic instability and death if it is not recognized in a timely manner and intervenes promptly. CASE PRESENTATION: We reported 7 COVID-19 patients with tension pneumomediastinum at a field hospital. All patients were critically ill with ARDS. These 7 patients, including 3 females and 4 males in this series, were aged between 39 and 70 years. Tension pneumomediastinum occurred on the first day of mechanical ventilation in 3 patients and later in the course of hospital stay, even 10 days after being intubated and ventilated. The tension pneumomediastinum caused hemodynamic instability and worsened respiratory mechanics with imminent cardiopulmonary collapse. In this series, we used two surgical techniques: (i) mediastinal decompression by suprasternal drainage with or without simultaneous pleural drainage in the first two cases and (ii) mediastinal drainage via suprasternal and subxiphoid incisions in 5 patients. The surgical procedures were feasible and reversed the pending cardiopulmonary collapse. Four patients had a favorable postprocedural period and were discharged from the intensive care center. Both patients undergoing suprasternal drainage died of failed/recurrent tension pneumomediastinum and nosocomial infection. Only one in five patients who underwent mediastinal drainage via suprasternal and subxiphoid incisions died of septic shock secondary to ventilator-associated pneumonia. CONCLUSION: Tension pneumomediastinum was a life-threatening complication in critically ill COVID-19 patients requiring mechanical ventilation. Surgical mediastinal decompression was the salvage procedure. The surgical technique of mediastinal drainage via suprasternal and subxiphoid incisions proved an advantage in tension relief, hemodynamic improvement and mortality reduction.

Surgical Blowhole Incision - An Unconventional Approach to Subcutaneous Emphysema Management Following Blunt Neck Trauma.

Subcutaneous emphysema is the fortuitous entry of air into subcutaneous tissue. Its occurrence in the head, neck, and mediastinum is a result of trauma or surgery. This case describes a 45-year male who presented with massive progressive subcutaneous emphysema, spreading from the peri-orbital area to the upper mediastinum, secondary to tracheal injury following blunt trauma sustained two days before presentation. We present this case to emphasize on simple management and observation of minor laryngo-tracheal trauma which can prevent further unexpected complications. In this case, we used an unconventional approach of making blowhole incision which is not in routine practice. Key Words: Subcutaneous emphysema, Blowhole, Neck trauma.

Bedside Mediastinotomy for Tension Pneumomediastinum With Tamponade in COVID-19.

Tension pneumomediastinum is a rare but life-threatening cause of tamponade. Mechanical ventilation is a described source of tension pneumomediastinum. Here, we present a case of a 72-year-old man who developed cardiovascular collapse from tension pneumomediastinum in the setting of coronavirus disease 2019-related acute respiratory distress syndrome. We successfully performed bedside mediastinotomy and mediastinal tube placement under local anesthetic to alleviate his hemodynamic instability. Bedside mediastinotomy can be used to relieve tension pneumomediastinum in this setting.

Bedside Transcervical-Transtracheal Postintubation Injury Repair in a COVID-19 Patient.

Severe acute respiratory syndrome coronavirus 2 disease 2019 (COVID-19) has rapidly spread worldwide since December 2019. An acute respiratory distress syndrome develops in a relevant rate of patients, who require hospitalization. Among them, a nonnegligible rate of 9.8% to 15.2% of patients requires tracheal intubation for invasive ventilation. We report the case of a pneumomediastinum and subcutaneous emphysema developing in a COVID-19 patient secondary to postintubation tracheal injury. The management of COVID-19 patients can be challenging due to the risk of disease transmission to caregivers and epidemic spread. We performed a bedside tracheal injury surgical repair, after failure of conservative management, with resolution of pneumomediastinum and subcutaneous emphysema and improvement of the patient's conditions.

A 64-Year-Old Man With Rapidly Progressive Respiratory Failure and Pneumomediastinum.

CASE PRESENTATION: A 64-year-old man presented for consideration for lung transplant. He had a history of previous tobacco use, OSA on CPAP therapy, and gastroesophageal reflux disease. He worked as a design engineer. The patient had a 4-year history of dyspnea on exertion, followed with periodic CT scan of the chest. Nine months prior to his evaluation for lung transplant, the patient developed worsening of dyspnea, dry cough, poor appetite, and weight loss. At times, the cough was violent and associated with chest pressure. He was prescribed systemic corticosteroids and antibiotics without improvement. Four months later, the patient noted sudden onset of severe chest pain and worsening dyspnea. A CT scan of the chest demonstrated extensive pneumomediastinum in addition to changes consistent with pulmonary fibrosis. An esophagogram showed thickening of the distal esophagus, but no signs of perforation. He was prescribed supplemental oxygen and advised to stop the use of CPAP. The patient sought a second opinion. A CT scan of the chest showed improvement of the pneumomediastinum and extensive fibrotic lung disease. Pulmonary function tests (PFTs) were consistent with a restrictive pattern, decreased diffusing capacity (Dlco), and a preserved residual volume over total lung capacity ratio. The patient was prescribed systemic corticosteroids with no improvement of his symptoms. Repeat PFTs showed further decline of Dlco, and he was referred for lung transplant evaluation.

Chest pain caused by pneumomediastinum as the first symptom of sigmoid perforation - case report.

INTRODUCTION: Chest pain is one of the most common symptoms with which patients report to the doctor. The reason for this is the fear of the sick, who often equate this symptom with dangerous diseases such as heart attack. The primary source of pain does not always have to be located within the chest. Colon perforation is a rare but possible complication of colonoscopy, which may result in free gas entering the mediastinum which is accompanied by chest pain. CASE REPORT: We present the case of a 78-year-old woman who reported to the hospital emergency department with chest pain, shortness of breath and abdominal pain. On the basis of imaging examinations, perforation of sigmoid affected by diverticulosis, complicated by pneumomediastinum and retroperitoneal emphysema, was suspected. The aforementioned ailments were caused by iatrogenic perforation of the sigmoid during diagnostic colonoscopy performed on an outpatient basis a few hours before reporting to the hospital. The patient was urgently qualified for laparotomy. Intraoperatively, perforation was confirmed at the rectosigmoid junction, which was the cause of retroperitoneal and pneumomediastinum with rightsided emphysema of the lateral neck region. No fluid or intestinal contents were found in the abdomen. The sigmoid colon and upper rectum were resected via double-stapled anastomosis performed between the descending colon and rectum. The patient was discharged home in good condition on the 7th postoperative day. CONCLUSIONS: Colonoscopy is a diagnostic and therapeutic procedure that is considered relatively safe, but also carries complications such as bleeding or perforation of the large intestine. Diverticular disease is a common condition which most often affects the sigmoid colon. In areas of the weakest resistance, diverticulum formation occurs as a result of increased intra-abdominal pressure, which is an additional risk factor for perforation during colonoscopy. It is important to remember the possible different clinical presentation of gastrointestinal perforation, which may also manifest as chest pain. With early detection and surgical treatment, life-threatening complications associated with the development of pneumothorax can be avoided.

Persistent air leak after pulmonary transplantation.

A 59-year-old man with bilateral apical emphysema underwent a double lung transplant for end-stagechronic obstructive pulmonary disease leaving remnant right apical native tissue due to pleural adhesions. Initial postoperative course was uneventful until the chest drains were removed. This revealed a small pneumomediastinum, which progressively increased in size causing gross surgical emphysema. Re-insertion of the chest drain stabilised the patient so that the cause could be identified and corrected. Two bronchoscopies excluded anastomotic dehiscence as a cause. Therefore the subcostal wound was refashioned under video-assisted thoracoscopic surgery in case there was a defect. Unfortunately this also failed to halt the air leak; therefore another cause was sought. A multidisciplinary team meeting review of the radiology revealed that the patient's native bullous tissue was still inflated. Subsequent bronchoscopy revealed a native bronchial communication, due to variant anatomy, proximal to the surgical anastomosis. This was subsequently occluded using a bronchial valve allowing the patient to make a swift recovery.

[Pneumomediastinum Due to the Fracture of the Maxillary Antrum].

A 47-year-old man was admitted to the emergency room, half a day after having fallen down on his right cheek drunkenly onto a concrete block. Physical examination revealed that the contusion was limited to the right side of his face, only around the cheek, without trauma to the neck, chest or abdomen. But wide ranging tactile crepitus with severe swelling was present on his face and neck due to widely spread emphysema. Computed tomography (CT) scan revealed some fractures of maxillary antrum, facial and cervical emphysema spreading to the lower part of mediastinum. After a conservative treatment, he recovered without any severe systematic complication. It was found that the facial and cervical emphysema and pneumomediastimum completely disappeared on the follow-up CT scan, 18 days after the event.

Blunt maxillary fracture and cheek bite: two rare causes of traumatic pneumomediastinum.

Subcutaneous facial emphysema is a well-known consequence of oral and maxillofacial traumatic injury. In some rare cases, the subcutaneous air collection could spread through the retropharyngeal and paralatero-cervical spaces, reaching the mediastinum. This clinical entity is known as pneumomediastinum and represents a severe and, sometimes, life-threatening condition. Other reported causes of pneumomediastinum are esophageal and tracheal traumatic or iatrogenic rupture. Finally, the so-called spontaneous pneumomediastinum is caused by a sudden increase in alveolar pressure and is usually seen in young men. We present two cases of pneumomediastinum as a consequence of unusual traumatic damage of orofacial tissues, followed by repeated sneezing and Valsalva maneuver.

Spontaneous pneumomediastinum in the pediatric patient.

BACKGROUND: Spontaneous pneumomediastinum (SPM) data in children are limited. We investigated the management of SPM at our institution. METHODS: We reviewed children with pneumomediastinum treated from January 2011 to October 2014. Primary (no precipitating factors) and secondary (underlying respiratory disease) SPM patients were included. Admission data and clinical outcomes were recorded. RESULTS: A total of 129 patients were included. Average age was 11.6 ± 4.6 years; 90 males (70%). Frequent presenting symptoms were chest pain (n = 76) and dyspnea (n = 51). Of the total, 89 patients (69%) were admitted. No patient required additional interventions. Of those, 85 patients (65.9%) had follow-up. Patients with secondary SPM (n = 58) were more likely than primary (n = 71) to be admitted (84% vs 56%, P = .001), receive oxygen (69% vs 35%, P = .04), and have longer stays (2 days [interquartile range, 1 to 3] vs 1 day [interquartile range, 0 to 1], P < .001). Readmission rates were equivalent. CONCLUSIONS: Differentiating types of SPM is important as clinical course differs. Secondary SPM patients are more frequently admitted than primary SPM patients.

Pneumoretroperitoneum and Pneumomediastinum Revealing a Left Colon Perforation.

Left colon perforation usually occurs in complicated diverticulitis or cancer. The most frequent signs are intraperitoneal abscess or peritonitis. In cases of retroperitoneal colonic perforation, diagnosis may be difficult. A 59-year-old woman presented with left thigh pain and with abdominal discomfort associated with mild dyspnea. Computed tomography scan showed air bubbles and purulent collection in the retroperitoneum, with subcutaneous emphysema extending from the left thigh to the neck. Computed tomography scan also revealed portal vein gas and thrombosis with multiple liver abscesses. An emergency laparotomy revealed a perforation of the proximal left colon. No masses were found. A left colectomy was performed. The retroperitoneum was drained and washed extensively. A negative pressure wound therapy was applied. A second-look laparotomy was performed 48 hours later. The retroperitoneum was drained and an end colostomy was performed. Intensive Care Unit postoperative stay was 9 days, and the patient was discharged on the 32nd postoperative day. Pneumoretroperitoneum and pneumomediastinum are rare signs of colonic retroperitoneal perforation. The diagnosis may be delayed, especially in the absence of peritoneal irritation. Clinical, laboratory, and especially radiologic parameters might be useful. Surgical treatment must be prompt to improve prognosis.

Pneumomediastinum and pneumoretroperitoneum: an extremely rare presentation of acute appendicitis.

A 22-year-old woman presented with abdominal pain for 12 days. On examination, the abdomen was slightly distended and painful to palpation in the right flank. Subsequent abdominal imaging showed inflammation in the right iliac fossa, retroperitoneal air pockets with inflammation, and signs of pneumomediastinum. Exploratory laparotomy revealed a perforated retrocaecal appendix with abscess extending to the retroperitoneum. Surgical intervention involved a right hemicolectomy followed by end-to-side anastomosis of the ileum to the transverse colon. Histopathological examination of the resected specimen revealed intense inflammation of the caecum and no signs of malignancy. The patient was discharged in good condition 54 days after surgery.