Manejo conservador del neumotórax oculto en trauma

Introducción: El neumotórax oculto (NTXO) se encuentra hasta en el 15% de los traumatismos torácicos. Existen antecedentes del manejo conservador de esta patología (sólo observación), aunque su práctica continúa siendo discutida, especialmente, en traumatismos penetrantes. El objetivo de este trabajo es describir nuestra experiencia en el manejo conservador del NTXO. Materiales y Método: Estudio de cohorte retrospectivo realizado durante un período de 3 años en un Hospital de Trauma nivel I. Se incluyeron pacientes con traumatismo torácico (cerrado o penetrante) con NTXO. Se dividieron en dos grupos (conservados o drenados), realizándose una comparación de su evolución. Resultados: En 3 años fueron admitidos con traumatismo torácico 679 pacientes. De 93 pacientes con NTXO, 74 (80%) fueron conservados inicialmente y 19 (20%) tratados con drenaje pleural. Dos (3%) presentaron progresión del neumotórax en el seguimiento radiológico (conservación fallida). No se registraron complicaciones relacionadas con la ausencia de drenaje pleural. Las complicaciones y estancia hospitalaria fueron menores en el grupo de manejo conservador. Conclusión: Pacientes con NTXO por traumatismo de tórax (cerrado o penetrante), sin requerimiento de ventilación asistida y hemodinámicamente estables, pueden manejarse de manera conservadora con un monitoreo cercano durante 24 horas en forma segura, con menor tasa de complicaciones y de estancia hospitalaria.

Background: Occult pneumothorax (OPTX) is found in up to 15% of chest injuries. There is a history of conservative management of this pathology (only observation), although its practice continues to be discussed, especially in penetrating trauma. The objective of this paper is to describe our experience in the conservative management of OPTX. Materials and Method: Retrospective cohort study conducted over a 3-year period at a level I Trauma Center. Patients with thoracic trauma (blunt or penetrating) with OPTX were included. They were divided into two groups (preserved or drained) comparing their evolution. Results: Over a 3-year period 679 patients were admitted with chest trauma. From 93 patients with OPTX, 74 (80%) were initially preserved and 19 (20%) drained. Two patients (3%) presented pneumothorax progression in the follow-up imaging. There were no complications related to the absence of pleural drainage. Complications and hospital stay were lower in the conservative management group. Conclusion: Patients with OPTX due to chest trauma (blunt or penetrating), without requiring assisted ventilation and hemodynamically stable, can be safely conservative managed with close monitoring for 24 hours, with a lower rate of complications and hospital stay.

Occult primary spontaneous pneumothorax

We report a case of occult primary spontaneous pneumothorax in a 30 years-old woman. She developed symptoms and signs that were suggestive of pneumothorax. However, chest radiograph failed to reveal pneumothorax. Therefore, we proceeded with computed tomography (CT) thorax which revealed significantly moderate right pneumothorax. The diagnostic approach and the management of this case are discussed.

Chest Sonography in the Diagnosis of Pneumothorax.

Background. Few studies have assessed the utility of chest ultrasonography in the diagnosis of pneumothorax in India. Methods. Chest ultrasonography was undertaken in 126 haemodynamically stable patients, followed by a chest radiograph within 30 minutes. If pneumothorax was not seen on the chest radiograph, a non-contrast computed tomography of the thorax was performed within 3 hours. The time taken to make or exclude a diagnosis of pneumothorax, by ultrasonography, was assessed. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of chest ultrasonography was estimated. Results. For the diagnosis of pneumothorax in any clinical situation, the average time taken on ultrasonography was less than 2 minutes. The sensitivity, specificity, accuracy, PPV and NPV of chest ultrasonography was 89%, 88.5%, 88.9%, 96.7% and 67.6%, respectively. Conclusions. Chest ultrasonography can be used as a primary imaging modality in the diagnosis of pneumothorax in a vast variety of clinical situations.