Abstract
Splenic injuries are common solid organ injuries resulting from blunt abdominal trauma in road traffic accidents. Very often, splenic injuries can be life-threatening. Earlier, splenic injuries were often dealt with surgical intervention, such as splenectomy. With the recognition of the immunological function of the spleen and possible complications of splenectomy surgery, such as overwhelming post-splenectomy infections (OPSI), there has been a recent trend for non-operative management (NOM). To study the variables predicting failure of NOM in blunt abdominal trauma patients with splenic injury. This is a retrospective study that includes 235 patients who presented to the Safdarjung Hospital emergency room (New Delhi, India) with blunt trauma abdomen and splenic injuries with or without associated injuries between January 2019 and December 2021. The data was entered in a Microsoft Excel spreadsheet (Microsoft Corp., Redmond, WA, USA). Categorical variables were expressed as frequencies and percentages. Pearson's chi-square test of association was used to determine if there is a relationship between two variables. A p-value of <0.05 was considered statistically significant. Out of 235 patients with blunt abdominal trauma and splenic injuries, 82 were hemodynamically unstable despite resuscitation and were taken up for emergency laparotomy. The remaining 153 patients, who were either hemodynamically stable or stabilized after adequate resuscitation, were managed on the lines of NOM. The number of patients with splenic injury in AAST grades 1, 2, 3, 4, and 5 was 36, 50, 40, 24, and three, respectively. Out of 153 patients, 130 (85%) were successfully managed by NOM, while eight (5%) had to discontinue NOM as they required surgical intervention. The failure of NOM (fNOM) is seen mostly with grade 5 injuries (2/2, 100%, p<0.01), followed by grade 4 (4/20, 20%) and grade 3 (2/37, 5.7%). The mean age in fNOM was 58.3 years, as compared to 42.2 years in the success of NOM (sNOM). All eight patients had multiple concomitant injuries, with femur fracture being the most common association in up to six patients (p<0.01), followed by liver injury in four patients. There were 15 mortalities, irrespective of AAST severity grade. All of these patients had associated concomitant injuries, with intracranial bleeding (n = 10, 32%, p<0.01) being the most common association, followed by femur fracture (n = 6, 20%) and liver injury (n = 5, 16%). Also, the cause of death was unrelated to splenic trauma (p = 0.67), with pulmonary embolism (n = 6, 40%, p<0.01) being the most common cause, followed by brain stem herniation (n = 5, 34%). Non-operative management is a safe and efficient method for treating patients with splenic injuries who are hemodynamically stable or stabilized. The factors associated with fNOM include elderly age, a higher American Association for the Surgery of Trauma(AAST) grade of splenic injury, and associated concomitant injuries. Femur fracture was the most common concomitant injury present in cases where NOM failed, followed by liver injury. The presence of intracranial bleeds in these patients was a common association with mortality, irrespective of the grade of splenic injury.
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