Hemotórax mortal secundario a lesiones de arterias intercostales posteriores: Reporte de caso / Fatal hemothorax secondary to posterior intercostal artery injuries: case report

Resumen La lesión de la arteria intercostal es un diagnóstico diferencial poco sospechado. Puede complicarse con una inestabilidad hemodinámica por un hemotórax o un hematoma intratorácico, lo que contribuye a su morbilidad y mortalidad. Se reporta el caso de un paciente de 61 años sin antecedentes patológicos conocidos que acudió al servicio de urgencias por dolor asociado a dificultad respiratoria posterior a un trauma torácico cerrado por caída de 8 días de evolución. Los estudios de imagen revelaron un hemotórax derecho, que ameritó la colocación de un tubo pleural. Se realizó una laparotomía exploratoria sin evidencia de hemorragias ni colecciones intrabdominales, y que posteriormente falleció. En el examen de necropsia se evidenciaron fracturas del noveno y décimo arco costal posterior derecho, asociado a un hematoma. El hemotórax secundario a la lesión de la arteria intercostal es poco frecuente, pero es una emergencia que requiere un diagnóstico asertivo y una intervención oportuna.

Abstract Intercostal artery injury is a poorly suspected differential diagnosis. It can be complicated by hemodynamic instability due to hemothorax or intrathoracic hematoma, which contributes to morbidity and mortality. We report the case of a 61-year-old patient with no pathological history known, who was presented to the emergency department for pain associated with respiratory distress following a blunt chest trauma due to a fall 8 days earlier. The Imaging studies revealed a right hemothorax, which required the placement of a pleural tube. An exploratory laparotomy was performed without evidence of bleeding or intra-abdominal collections, and he subsequently died. The necropsy examination revealed fractures of the ninth and tenth right posterior costal arch, associated with a posterior costal hematoma. The hemothorax that is secondary to an intercostal artery injury is rare, but it is an emergency that requires assertive diagnosis and timely intervention.

Alcoholización de nervios intercostales en el postoperatorio de la cirugía torácica / Alcoholization of the Intercostal Nerves on the Postoperative Period of Thoracic Surgery

Introducción: La cirugía torácica figura entre los procedimientos quirúrgicos más dolorosos. Objetivo: Describir los resultados de la alcoholización de nervios intercostales para analgesia postoperatoria. Métodos: Se realizó un estudio prospectivo, observacional y descriptivo de pacientes tratados quirúrgicamente por afecciones torácicas durante 2018-2019. La muestra incluyó 50 pacientes que cumplieron los criterios de inclusión: operados por el autor principal, mayores de 18 años, acceso intercostal y firmaron el consentimiento informado. Se excluyeron los operados por otros cirujanos o presentaron afectación de la pared torácica. La intensidad del dolor se categorizó en cuatro grupos: leve, moderado, intenso e insoportable, según escala análogo visual. Resultados: Durante la primera noche, predominaron el dolor leve (25/50 por ciento) y moderado (9/18 por ciento). El dolor intenso se presentó en dos (4 por ciento) pacientes y 14(28 por ciento) no necesitaron medicación adicional. Al día siguiente no hubo casos con dolor intenso y solo 9 acusaron dolor moderado. La analgesia peridural solo se utilizó la primera noche y al siguiente día. La tendencia a disminuir el dolor se mantuvo al segundo y tercer día. No hubo casos con dolor insoportable. A largo plazo solo un paciente presentó dolor intenso que necesitó tratamiento con bloqueos. Conclusiones: La alcoholización disminuyó el uso adicional de analgésicos. No hubo complicaciones ni dolor insoportable, por lo que consideramos que este método podría ser una alternativa segura, sobre todo cuando no se dispone de fármacos costosos o personal entrenado en las técnicas modernas de analgesia postoperatoria(AU)

Introduction: Thoracic surgery is among the most painful surgical procedures. Objective: To describe the outcomes of the alcoholization of the intercostal nerves for postoperative analgesia. Methods: A prospective, observational and descriptive study was carried out, with patients treated surgically for thoracic conditions during 2018-2019. The sample included fifty patients who met the inclusion criteria: operated by the corresponding author, older than eighteen years, intercostal access and patients who signed the informed consent. Those operated on by other surgeons or who had chest wall involvement were excluded. Pain intensity was categorized into four groups: mild, moderate, intense and unbearable, according to the analog-visual scale. Results: During the first night, mild (25: 50 percent) and moderate (9: 18 percent) pain predominated. Severe pain occurred in two (4 percent) patients, while 14 (28 percent) did not require any additional medication. The next day, there were no cases of severe pain and only nine reported moderate pain. Epidural analgesia was only used the first night and the next day. The tendency to decrease in pain was maintained on the second and third days. There were no cases with unbearable pain. In the long term, only one patient had severe pain and required, therefore, treatment with blocks. Conclusions: Alcoholization decreased the additional use of analgesics. There were no complications or unbearable pain, a reason why we consider that this method could be a safe alternative, especially when expensive drugs or personnel trained in modern postoperative analgesia techniques are not available(AU)

Inflammatory Myofibroblastic Tumor on Intercostal Nerve Presenting as Paraneoplastic Pemphigus with Fatal Pulmonary Involvement

Inflammatory myofibroblastic tumors (IMTs) are benign neoplasms that can occur at different anatomic sites with nonspecific clinical symptoms. A 48-yr-old woman presented with a 2-month history of a relapsed oral ulcer, progressive dyspnea, and a thoracic pain induced by breathing. A tumorous mass was noticed in the right costodiaphragmatic recess on chest computed tomography and magnetic resonance imaging, and the patient underwent a right costotransversectomy with excision of the tumor, which originated from the 12th intercostal nerve. Histology and immunohistochemistry showed that the tumor was an IMT of the intercostal nerve. The patient's postoperative course was not favorable; dyspnea persisted after surgery, and a progressive pulmonary compromise developed. The cause of the respiratory failure was found to be bronchiolitis obliterans, which in this case proved to be a fatal complication of paraneoplastic pemphigus associated with an IMT. This case of IMT of the spinal nerve in the paravertebral region is unique in terms of its location and presentation in combination with paraneoplastic pemphigus, which is rare. A brief review of the heterogeneous theories concerning the pathogenesis, clinicopathological features, and differential diagnosis of this disease entity is presented.