RESUMO

Introducción: la forma más frecuente del síndrome de fuga de aire en la crisis asmática es el neumomediastino, siendo habitualmente de curso benigno. La neumorraquis es una complicación poco descrita en la literatura. Presentamos el caso clínico de un paciente de 35 años, portador de asma intermitente, y que ingresa a terapia intensiva por crisis bronco obstructiva severa, enfisema subcutáneo cervical y cara anterior de tórax. La tomografía de tórax demostró neumomediastino extenso y neumorraquis. No se documentó neumotórax ni compromiso hemodinámico por la crisis. Presentó evolución satisfactoria con ventilación mecánica invasiva, broncodilatadores y corticoides sistémicos.

A case report: Pneumomediastinum is the most common form of air leak syndrome in asthmatic crisis and is usually benign in nature. Pneumorrhachis is a complication that is rarely described in the literature. We present the clinical case of a 35-year-old patient with intermittent asthma who was admitted to the Intensive Care Unit due to a severe bronchoobstructive crisis, cervical subcutaneous emphysema, and anterior chest wall emphysema. Chest computed tomography revealed extensive pneumomediastinum and pneumorrhachis Pneumothorax or hemodynamic compromise due to the crisis was not documented. The patient showed a satisfactory outcome with invasive mechanical ventilation, bronchodilators, and systemic corticosteroids.

Relato de caso: O pneumomediastino é a forma mais comum de síndrome de presença de ar no mediastino em crises de asma, geralmente com curso benigno. A pneumorráquis é uma complicação raramente descrita na literatura. Apresentamos o caso clínico de um paciente de 35 anos, com asma intermitente, admitido na Unidade de Cuidados Intensivos por crise bronco-obstrutiva grave, enfisema subcutâneo cervical e de parede torácica anterior. A tomografia de tórax mostrou extenso pneumomediastino e pneumorraque. Não se observou pneumotórax ou comprometimento hemodinâmico devido à crise. Apresentou evolução satisfatória com ventilação mecânica invasiva, broncodilatadores e corticoides sistêmicos.

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Hamman's syndrome, or spontaneous pneumomediastinum, is the presence of air in the mediastinum without a history of previous pulmonary pathology, chest trauma or iatrogenesis. It has been described as a rare complication in patients with COVID-19 pneumonia. It is postulated that an increase in airway pressure associated with diffuse alveolar damage caused by the virus produces an air leak into the mediastinum. Chest pain and dyspnea associated with subcutaneous emphysema should make the treating physician suspicious. We introduce a 79-year-old patient who, during hospitalization for pneumonia secondary to COVID-19, suddenly developed dyspnea, chest pain, coughing spells and bronchospasm with the discovery of spontaneous pneumomediastinum on chest tomography. He evolved favorably with bronchodilator treatment and temporary oxygen therapy. Hamman's syndrome is a rare cause of respiratory failure progression in patients with COVID-19 pneumonia. Its recognition is crucial to implement the appropriate treatment.

El síndrome de Hamman, o neumomediastino espontáneo, es la presencia de aire en mediastino en pacientes sin antecedentes de enfermedad pulmonar previa, trauma torácico o iatrogenia. Se ha descrito como una complicación rara en pacientes con neumonía por COVID-19. Se postula que un aumento en la presión de la vía aérea asociado a daño alveolar difuso generado por el virus, producen una fuga de aire hacia el mediastino. El dolor torácico y disnea, asociado a enfisema subcutáneo, deben hacer sospechar al médico tratante. Presentamos un paciente de 79 años que durante su internación por neumonía secundaria al virus SARS-CoV-2 evolucionó súbitamente con disnea, dolor torácico, accesos de tos y broncoespasmo con hallazgo de neumomediastino espontáneo en la tomografía de tórax. Evolucionó favorablemente con tratamiento broncodilatador y oxigenoterapia. El síndrome de Hamman es una causa poco frecuente de progresión de insuficiencia respiratoria en pacientes con neumonía por COVID-19. Su identificación es crucial para implementar el tratamiento adecuado.

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BACKGROUND Tracheocele are rarely encountered air cysts formed due to tracheal wall outpouching through a weak vantage point. The majority are acquired in the adult population and are associated with conditions that weaken the tracheal wall. Most tracheoceles are diagnosed incidentally since many are asymptomatic or present with nonspecific symptoms. Multidetector computed tomography (MDCT) scans are the most common imaging modality for diagnosis of silent tracheal cysts. Tracheocele have been very rarely documented in the trauma setting; therefore, in the setting of multiple body trauma diagnosis can be challenging. CASE REPORT We report a case of an acquired tracheocele after a high-impact blunt thoracic trauma with an admission diagnosis of suspected tracheal perforation. MDCT of the neck and chest demonstrated an irregularly multicystic-shaped air collection at the right posterolateral trachea upon evaluation. Flexible laryngoscopy and bronchoscopy results were unremarkable. CONCLUSIONS Tracheocele are rare and asymptomatic pseudo-diverticulum of the tracheal wall. Many are diagnosed incidentally with imaging studies for other conditions. Nevertheless, in the trauma setting its diagnosis can be challenging and misleading. Consideration of conditions such as tracheocele is important to prevent any unwarranted treatment modalities.

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Spontaneous pneumomediastinum is characterized by the accumulation of air in the mediastinum with no identified cause. It is a rare and self-limiting condition. We report the case of a 32-year-old female patient with controlled bronchial asthma, who presented with spontaneous pneumomediastinum, with no precipitating event. The evolution is generally benign and the treatment is conservative. Symptomatic medication may be instituted.

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SARS-CoV-2 (COVID-19) disease is an infection caused by a new emerging coronavirus, the most common clinical manifestations include fever, dry cough, dyspnea, chest pain, fatigue, and myalgia, sometimes it may present with atypical manifestations such as spontaneous pneumothorax and pneumomediastinum that occur in a minority of patients. We report a case of spontaneous pneumopericardium in a 60-year-old male, without comorbidities or a history of trauma, with pneumonia due to SARS-CoV-2.

La enfermedad por SARS-CoV-2 (COVID-19) es una infección causada por un nuevo coronavirus emergente. Las manifestaciones clínicas más comunes incluyen fiebre, tos seca, disnea, dolor de pecho, fatiga y mialgias. En ocasiones puede presentarse con manifestaciones atípicas, como neumotórax espontáneo y neumomediastino, que ocurren en una minoría de pacientes. Reportamos un caso de neumopericardio espontáneo en un varón de 60 años, sin comorbilidad ni antecedente de traumatismo, con neumonía por SARS-CoV-2.

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Several alterations that, due to their pathophysiology, are collectively classified as "air leaks", have been rare complications of COVID-19 pneumonia. In the context of infection by SARS-CoV-2, the debate arises as to whether these are classified as spontaneous or secondary, since the multiple mechanisms of pulmonary structural damage that COVID-19 entails condition lung fragility in a patient in short time. For the above, we presents the case of a 36-year-old female patient with COVID-19 complicated with pneumomediastinum and subcutaneous emphysema in order to illustrate and discuss these complications.

Diversas alteraciones que, por su fisiopatología, son clasificadas en conjunto como «fugas de aire¼, han sido complicaciones raras de la neumonía por COVID-19. Respecto a la infección por SARS-CoV-2, se plantea el debate de si estas se clasifican como espontáneas o secundarias, ya que los múltiples mecanismos de daño estructural pulmonar que conlleva la COVID-19 condicionan fragilidad pulmonar en corto lapso. Por lo anterior, se expone el caso de una paciente de 36 años con COVID-19 complicada con neumomediastino y enfisema subcutáneo con el objetivo de ilustrar y discutir dichas complicaciones.

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