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Impalement brain injury: report of five consecutive clinical cases

Abstract

Background

The management of impalement brain injury is very challenging, because of its complexity, risk of intracranial infection, neurological damage and functional impairment of the affected persons; in addition to the paucity of standardised treatments guidelines. The objective of this paper was to describe the clinical presentation and management outcome of patients admitted with impalement brain injuries in our centre.

Case presentation

Data of all patients with traumatic brain injury from January 2015 to November 2018 was collated from hospital medical record department and theatre operation register. Records of patients with impalement brain injury managed within the aforementioned period were extracted. We managed 5 cases (0.26%) of impalement cranio-cerebral injuries out of the total 1913 cases of traumatic brain injury managed over the study period. All the patients were males with a mean age of 28 years. Alteration in the level of consciousness and bleeding scalp wound with impaled object were the main presenting symptoms. Three of the patients were presented in coma. The injury resulted from different causes and variable objects implicated. The impaled objects identified included iron-rod, metallic part of Dane gun, multi-faceted spear, piece of stone and a piece of charred wood. Both the right and left sides of the cranium was equally affected with a case involving midline frontal area. Craniectomy around the impaled object was used to remove the objects, two patients had good recovery whilst three succumbed to the injuries, one died from disseminated intravascular coagulopathy and the two were from aspiration pneumonitis complicated by respiratory failure.

Conclusions

Impalement cranio-cerebral injury accounted for about 0.3% of all cases of traumatic brain injury in our environment. Variable impaled objects were found affecting a different part of the cranium and postoperative outcome depends largely on the preoperative neurological status.

Background

Impalement cranio-cerebral injury is a rare neurosurgical emergency with the potentials for serious morbidity and mortality. Penetrating injuries are the major cause of death in traumatic brain injury, accounting for 40% of mortality with most resulting from gunshot [1, 2]. The incidence of impalement cranio-cerebral injury is largely unknown because of its rarity [1].

Penetrating brain injury caused by foreign objects is quite uncommon; this is attributed to the smaller size of the head compared to the rest of the body, in addition to protective reflexes in the face that allow the victim to move away from the injurious object [3,4,5]. Various types of impaled objects have been reported, including but not limited to nails, knives, spear, wooden chopstick, brush and screwdrivers [4, 6, 7]. Extraction of impaling objects at the site of injury is strongly discouraged because the outcome is better in a well-designed procedure in a neurosurgical theatre [8,9,10].

The outcome of cranio-cerebral injury depends on the site of injury, depth of penetration and severity of the damage caused by the impaled object [11, 12]. Early diagnosis, prompt and adequate resuscitation and appropriate neurosurgical intervention is key to favourable outcome.

The incidence of impalement of cranio-cerebral injuries is expected to rise in the West African sub-region because of the menace of sectarian crisis, communal clashes and proliferation of small arms. This call for more research on this field and development of standardise treatment algorithm that would facilitate management and improve neurosurgical outcome.

The objectives of this paper were to report the clinical presentation and management outcome of patients admitted with impalement cranio-cerebral injuries in our centre.

Case presentation

This is a retrospective analysis of all cases of impalement brain injury managed from January 2015 to November 2018. Biodemographic characteristics, clinical details, neuroimaging findings and outcomes measured using Glasgow outcome score were noted. Clinical photographs of the cases were also retrieved. Results were presented in figures and tables. Out of the total 1913 cases of traumatic brain injury managed over the study period, 5 cases (0.26%) had impalement injury. Clinical details and outcomes of the cases were shown in (Table 1).

Table 1 Biodemographic and clinical characteristics of patients

The third patient (case 3) (Fig. 9) was a political thug that was assaulted by his own cousin-brother with a multi-faceted spear, developed disseminated intravascular coagulopathy with bleeding from all body orifices and succumbed before he could have surgical intervention. Whilst cases 4 and 5 presented with seizure and aspiration pneumonitis in addition to severe traumatic brain injury, they died on days 6 and 8 post-surgery respectively from respiratory failure. All the patients had intravenous antibiotics and anticonvulsant medications. Most of the patients (4/5) had their impaled object removed by craniectomy around the object except the fourth case that was under local anaesthesia because of a very low Glasgow scale score (7/15) in an elderly patient presenting with features of aspiration pneumonitis.

From our report, it is obvious that impalement cranio-cerebral injury accounted for about 0.3% of all cases of traumatic brain injury. Majority of our patients were younger than 45 years (4/5) and all were males. These findings are in keeping with the report of the incidence of traumatic brain injury being commoner in males below the age of 45 years worldwide [13]. We observed different types of objects resulting in impalement injury (Figs. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13). This is in tandem with the findings of previous earlier studies [4, 7, 14]. The aetiological factors identified in this report included assault, accidental Dane gun discharge, road traffic accidents and fall from a tree. Other authors have also reported similar findings [15]. Both the left and right sides of the cranium were equally affected in our study with one case involving the midline frontal region (Figs. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13). Our findings slightly differ from a previous earlier study [3].

Three of our patients presented with severe traumatic brain injury with Glasgow coma scale score of 8 and below whilst the remaining two had mild traumatic brain injury with Glasgow coma scale score of 14. This is in contrast to a series of Yusuf et al. who found majority of their patients presenting with Glasgow coma scale score of 15 [3]. Impaled objects were removed by craniectomy around the object for all patients except the third case that died from disseminated intravascular coagulopathy before surgical intervention. This agreed with the previous study but contrary to the report of other authors that reported craniotomy around the impaled object, against craniectomy performed in our series [3, 12]. Unlike our findings, most of the previous earlier series by other authors had a good outcome. The poor outcome observed in our series (three cases of mortalities) was attributed to the severity of brain injury, as all the mortalities presented with Glasgow coma scale score of eight and below. However, the overall outcome of impalement injury depends on the site of injury and the extent of damage caused by the objects [11].

Conclusions

We managed a rare form of severe impalement brain injuries. We also found that patients with pre-operative higher Glasgow coma scale score have favourable outcome compared to low GCS; therefore, prompt resuscitation, antibiotics and anticonvulsant therapies and timely surgical intervention are recommended for a better outcome.

Availability of data and materials

The data can be found from case files of the patients at the medical record section of the department of neurosurgery and surgical images archive of the Department of Neurosurgery, Usmanu Danfodiyo University Teaching Hospital Sokoto, Nigeria.

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Acknowledgements

We thank all staff of the Department of neurosurgery for their commitment in managing our patients.

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AM and AL contributed to the conception of the research, preparation of clinical details and literature review. The authors read and approved the final manuscript.

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Correspondence to Aliyu Muhammad Koko.

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Koko, A.M., Lasseini, A. Impalement brain injury: report of five consecutive clinical cases. Egypt J Neurosurg 35, 5 (2020). https://doi.org/10.1186/s41984-020-00077-8

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Keywords

  • Impalement injury
  • Traumatic brain injury
  • Outcome