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DOI: 10.1055/s-0042-1749650
Delayed-Onset Seizures Following Self-Inflicted Nail Gun Injury to the Head: A Case Report and Literature Review
Abstract
Nail gun use and its associated incidence of injury have continued to increase since it was first introduced in 1959. While most of these injuries involve the extremities, a subset of patients suffer intracranial trauma. The most recent comprehensive review on this particular subject referenced 41 cases and advocated for further discussion regarding proper treatment plans for these individuals. We present the case of a 25-year-old who suffered 35 self-inflicted penetrating head wounds from a nail gun after suffering an amputation injury at his job site. No neurological deficits were present on his arrival to the emergency room. He underwent surgery to treat his arm wound and remove 13 of the 35 nails. The patient was discharged from the hospital on levetiracetam and made a full recovery. Nearly 1 year later, he experienced a seizure at his workplace. However, after resuming his antiepileptic medication, he reports no further complications. This case is distinct for not only being the most nails in a patient's head at presentation, but also following surgery. Utilizing this case, prior review, and 27 subsequent cases, we propose an updated algorithm for diagnosis and treatment of nail-gun-related penetrating head trauma.
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Introduction
Since it was first introduced in 1959, nail guns have been used in the construction industry to increase productivity. While these devices may ease the workday of their operators, their use is associated with risk of injury, accounting for an estimated 37,000 emergency room visits each year.[1] The vast majority of these injuries involve the extremities; however, there is a subset of patients who suffer intracranial trauma. Surprisingly, this type of nail gun injury is often associated with favorable clinical outcomes. However, there are multiple reports that suggest such an injury can lead to permanent neurologic impairment or death.[2] [3] [4] A 2012 review of 41 nail gun head trauma cases suggested that further investigation is needed to develop a proper treatment algorithm for these individuals, with more focus on appropriate antibiotic and seizure prophylaxis.[5]
The following case details the clinical course of a patient who suffered 35 self-inflicted penetrating head wounds from a nail gun after accidently amputating his hand. An unfortunate outcome of this patient's nail gun trauma was late-onset posttraumatic seizures (PTSs). With this case, we present a comprehensive review of nail gun injury reports. Based on our findings, we propose the most up-to-date algorithm for diagnosis and treatment of intracranial nail gun injuries.
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Materials and Methods
A literature search on PubMed using the phrases “nail gun,” “penetrating head trauma,” and “intracranial injury” yielded 57 articles from both national and international journals. Non-English language was not a disqualifying factor in this review. The current case was included in the analysis. In total, the cases of 68 patients were reviewed with attention to patient condition at presentation, diagnostic techniques, treatment strategies, and outcomes.
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Case Report
A healthy 25-year-old male construction worker was transported to the trauma center following an injury at his job site. The patient reported accidentally placing his left hand in front of a circular saw resulting in a complete amputation of the appendage. He then fired approximately 35 nails into his head using a pneumatic nail gun in an attempt to “dull the pain.” He was subsequently transported to the hospital and on arrival, his chief complaint included left arm pain and a headache. He denied any loss of consciousness. Initial examination was significant for a complete traumatic amputation at the level of his left wrist, with bleeding controlled by a tourniquet. There were numerous finishing nails protruding from his head and multiple puncture wounds scattered on his scalp. He was awake, alert, and oriented, with a Glasgow Coma Score (GCS) of 15. Radiological evaluation included an X-ray of the left upper extremity that revealed a transected hand at the level of the proximal metacarpal line. X-ray and a nonenhanced computed tomography (CT) scan of his head revealed an abundance of finishing nails perforating the calvarium ([Fig. 1]), with the CT scan showing the nails entering the brain parenchyma with subarachnoid blood bilaterally. At least one nail entered the interhemispheric fissure. Furthermore, there were multiple nails that remained extracranial and several that entered the cerebral cortex.
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The patient was promptly evaluated by both a plastic surgeon and a neurosurgeon. He was then taken to the operating room for scalp debridement and hand reimplantation. Thirteen of the nails that exclusively penetrated soft tissue were removed, the scalp was debrided, and hemostasis was obtained. Due to the large number of nails deep within the brain parenchyma and the associated risk of removal, as well as the patient's intact neurologic exam, no attempt was made to remove the remaining 22 nails embedded in the calvarium. A cerebral arteriogram revealed no major intracranial arterial or venous injury.
On postoperative day 1, the decision was made to re-amputate the patient's hand due to ischemic changes. The patient tolerated this procedure well and the remainder of the patient's hospital course was uneventful. He completed a 7-day course of amoxicillin-clavulanate, received tetanus prophylaxis, and was maintained on a therapeutic level of phenytoin. He was discharged home and was continued on his anticonvulsant regimen.
Approximately 15 months later, the patient returned to the trauma center following a witnessed seizure. He was confused and combative on arrival and seized in the trauma bay. The patient denied previous seizures but admitted to recently stopping his anticonvulsant. A CT scan showed no new lesions and an electroencephalogram revealed bi-hemispheric cortical abnormalities without any focal epileptiform activity. The hospital course was otherwise unremarkable, and the patient was discharged home on levetiracetam. He has since returned to work and is living independently with no other apparent long-term complications.
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Results
A total of 68 patients were included in the literature review ([Table 1]). The patient population consisted of 67 men and 1 woman, 97% of whom were adults. Presentations of these individuals varied: 32 (47%) were neurologically intact, 29 (42%) suffered focal deficits, and 7 (10%) were comatose. Headache was the most commonly reported symptom in patients who were neurologically intact. At the time of discharge, 47 (69%) of the patients were neurologically intact, 17 (25%) had focal neurologic deficits, and 4 (6%) died. All patients underwent some form of imaging. Formal catheter angiography was used in 27 patients (40%) and computed tomography angiography (CTA) in 17 (25%).
Abbreviations: CN, cranial nerve; CT, computed tomography; EDH, epidural hematoma; EEG, electroencephalography; EOM, extra ocular movement; HCP, hydrocephalus; ICA, internal carotid artery; ICP, intracranial pressure; IPH, intraparenchymal hemorrhage; IVH, intraventricular hemorrhage; NR, non-reactive; SAH, subarachnoid hemorrhage; SOC, suboccipital craniectomy; VA, vertebral artery; VPS, ventriculoperitoneal shunt.
Note: List of articles included in the literature review on penetrating cranial trauma due to nail guns. 68 patients were included in the review.
With regards to treatment, craniotomy or craniectomy was performed in 43 (63%) of the cases, 6 of which were bilateral. Two patients were treated definitively with burr holes. Nail removal without a craniotomy or through an unspecified surgical procedure was reported in 15 (22%) of the cases. Vascular embolization was utilized in two patients. Local debridement without nail removal was performed in three cases. Nails were left permanently in the calvarium in five of the patients.
Commentary on antibiotic use was provided in 33 of the cases, 16 of which did not specify which antibiotics were used. Antiepileptic medications were mentioned in 16 of the reports.
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Discussion
Presentation and Outcomes
Patients with intracranial nail gun injuries present with varying degrees of neurologic deficits. Similar to the 2012 comprehensive review, 46% of patients presented with an intact neurological exam. These individuals' most common complaint on admission was headache. Conversely, neurological deficits included: visual loss, hemiparesis, dysarthria, and cranial nerve injuries. Seven patients presented in a comatose state. Many of the patients who presented with deficits improved prior to discharge as 72% of the cases left the hospital with a normal neurological exam.
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Imaging
The standard of care for penetrating brain trauma is a nonenhanced CT scan of the head.[6] These images aid in localizing any entry and exit wounds, foreign bodies, hemorrhage, and mass effect. Each of the most recent 28 patients incorporated into the literature review received this imaging as a baseline study for their injury. In addition, current recommendations suggest obtaining a CTA or digital subtraction angiography for any patients with a high likelihood of vascular injury.[7] This additional imaging can help identify vessel penetration, arterial dissection, pseudoaneurysms, and vessel stenosis. In accordance with these guidelines, CTA was the most common form of angiography used in the most recent patients, whereas catheter angiography was used more frequently in the Woodall et al review.
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Surgical Approach
Neurosurgical approach to penetrating transcranial injury should vary on a case-by-case basis. While surgery is a major component of the current standard of care, there is no standard for surgical approach.[8] Considerations of the current neurologic status of the patient and potential benefits of the surgery must be weighed against the potential risks of neurosurgical intervention. The objectives of surgery are to remove foreign bodies to decrease risk of infection as well as addressing any secondary causes of cerebral injury that develop after the initial trauma.[9] These include but are not limited to intracranial hemorrhage due to vascular injury, potential venous infarction secondary to dural venous sinus injury, and development of significant brain edema or hydrocephalus that might require decompression.
When approaching patients with traumatic penetrating brain injury, questions about the location of injury within the brain along with the involvement of vessels, sinuses, and ventricles must all be addressed when planning for surgery. Perhaps most importantly, violation of the protective blood–brain barrier poses a major risk for infection. Any open communication between the central nervous system (CNS) spaces and the outside world that is caused by penetrating injury must be addressed to minimize the risk of infection and immune response. This may require prompt removal of a foreign body or a simple closure of the projectile's track with proper irrigation and wound debridement.
Surgical approach is also dependent on the area of the cortex injured. While neuroplasticity may lead to recovery to some degree, damage incurred during initial injury will be irreversible. Causing further injury to important cortical regions with removal and instrumentation should be avoided. For nail gun injury, risk factors include barbed or ribbed nails along with nails that have glue placed along the length of the nail for better retention.[2] Fracturing of the projectile and/or the skull upon entry increases the risk of foreign body retention, cerebral irritation, and injury with removal. These secondary projectiles pose a risk for vascular injury, which can develop during both an immediate and delayed time course.[10] [11] Immediate vascular injury can be visualized and partially addressed with angiogram.[12] Such injury to arteries or major venous systems like dural sinuses and deep draining veins should be addressed intraoperatively as they can lead to massive hemorrhage and infarction. It is important to monitor these patients for later development of pseudoaneurysms, arteriovenous fistulas, and sinus thrombosis if vascular injury is noted at initial presentation.
The surgical approach most often reported in the literature is a craniotomy with removal of the nails. Size and location of the cranial window are all case-dependent. Discussion and collaboration with other surgical specialists is essential for operative planning. Involvement of ophthalmology or otolaryngology may be required if there is injury to the eyes or other region of the anterior skull base.[13] Endoscopic removal of foreign bodies located in the anterior cranial fossa is also a possibility should the injury mechanism and surgeon preference allow.[14] Use of other procedures such as decompressive craniectomy or vessel embolization should be considered on a case-by-case basis.
With the considerations above, removal of all or any foreign bodies is not a requirement. The present case is an illustration of the potential surgical approach to the patient with penetrating brain injury. With 35 nails in his head at presentation, this patient has the most documented nails reported in the literature. During surgery, only 13 nails were removed based on considerations of utility and safety of removal. He was left with 22 nails still in place, making this also the most documented nails remaining in a patient's head postoperatively. His postoperative course with no neurologic deficits, only complicated by development of delayed seizures that are well-controlled on antiepileptics, validates the decision to leave nails in place to avoid further potential brain or vascular injury secondary to surgical removal.
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Antibiotic Prophylaxis
Literature has long suggested starting broad-spectrum antibiotics as soon as possible to prevent intracranial infection in penetrating brain injuries.[15] In this analysis, antibiotics were administered in nearly 90% of cases subsequent to the Woodall et al review. Commentary regarding the type of medication varied from “broad spectrum antibiotics” to vancomycin and second- or third-generation cephalosporins.
On the contrary, a 2020 systematic review of civilians with penetrating brain injury states that there are no robust data suggesting the use, type, or duration of antibiotics for such injuries.[16] Rather, current suggestions are based on dated military studies that may be inappropriately extrapolated to include nail gun injuries.[16] Similarly, a multicenter trial completed by the Eastern Association of Surgery and Trauma reviewed patients from 17 different centers over the past 11 years who suffered penetrating traumatic brain injuries (TBIs).[17] The group found no reduction in intracranial infection with the use of antibiotics. Instead, they found invasive intracranial pressure monitoring and surgical intervention to be risk factors for infection. Interestingly, the paper suggests that it may be appropriate to limit antibiotic use in a time where “antibiotic stewardship” is increasingly important.
The push to limit antibiotic use must be balanced against the devastating consequences of CNS infection. The low velocity of nail gun projectiles may still have the capacity to drive contaminants into the brain when compared with high-powered firearms referenced in previous studies. Accordingly, our group sides with the current standard-of-care recommendations for penetrating head trauma that include intravenous co-amoxiclav, or intravenous cefuroxime followed by metronidazole for up to 5 days.[18] [19]
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Antiseizure Prophylaxis
The use of antiepileptic drugs to prevent seizures following penetrating TBI remains a highly debated topic. The incidence of early (within 1 week of injury) PTSs is 6 to 10% and can increase up to 53% in those with penetrating head injury.[20] [21] [22] In this comprehensive review, five patients suffered seizures following their injuries; however, there was only one report of a seizure within the 1-week timeframe. Early PTS is predictive of the development of late PTS and eventual epilepsy development. Other risk factors linked to subsequent seizure activity include focal neurologic lesions, hematoma development, and retained metal fragments—the latter playing a potential role in the present case.[23] [24] Thus, it appears care providers must consider both surgical intervention and an antiepileptic medication. A 2017 set of recommendations from the Surgical Critical Care Guidelines Committee suggests antiseizure prophylaxis only in those with severe TBI, which includes patients with evidence of a brain contusion, intracranial hematoma, loss of consciousness, posttraumatic amnesia for more than 24 hours, or a GCS of 3 to 8.[25] In such cases, the group recommends a week-long course of antiepileptics to prevent early PTS. Late PTS prophylaxis is not recommended as there is no evidence to suggest that continued medication use after this 1-week window would be beneficial in the prevention of posttraumatic epilepsy. The antiepileptic drug used varies based on institutional and physician preference. The most widely used options are phenytoin, as used in the case reported here, and levetiracetam. Given its preferable side-effect profile and because it does not require monitoring of serum levels, levetiracetam is favored in many settings.
Similar to the use of antibiotics for penetrating injury, there is a dearth of published evidence to support or refute the use of antiepileptic drugs in the setting of head trauma. Our recommendations agree with those of the Surgical Critical Care Committee: anyone who suffers a brain contusion, intracranial hematoma, or presents with a GCS of 3 to 8 should receive prophylactic levetiracetam for 7 days. We also suggest the consideration of long-term use of antiepileptics in any situation where metal fragments are retained within the deep brain parenchyma, as in the current case.
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Conclusion
Herein we present the case of a patient who suffered penetrating head trauma due to self-inflicted nail gun injuries. This case is significant for being both the most nails reported within a patient's head at presentation and the most nails left in a patient's head after surgery. In review of this patient's course, and the literature concerning penetrating cranial nail gun injury, our group proposes a concise and regimented approach to such patients ([Table 2]). First, surgery should always be a consideration for the penetrating head trauma patient as the benefits of surgery can be multifold. Of paramount importance is to ensure closure of any blood–brain barrier violations and to address any existing vascular injury that could potentially lead to future hemorrhage or pseudoaneurysm formation. Importantly, this case is evidence that even a semi-conservative approach to nail removal can lead to positive neurologic outcomes. We further recommend the use of a short course of prophylactic broad-spectrum antibiotics and antiepileptic medication, with extension of the antibiotic and antiepileptic medication course for those patients with retained nails or debris.
Abbreviations: CT, computed tomography; CTA, computed tomography angiography; g, grams; IV, intravenous; mg, milligrams; q8h, administer every 8 hours.
Note: The above recommendations are based on the cumulative evidence presented through the various case reports that were included in our group's literature review.
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Conflicts of Interest
None declared.
Statement of Ethics
Written informed consent was obtained from the patient's parent for publication of this case report and any accompanying images.
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References
- 1 Centers for Disease Control and Prevention.. Nailing down the need for nail gun safety. Updated July 31, 2018. Accessed September 26, 2020 at: https://www.cdc.gov/niosh/newsroom/feature/nailgunsafety/default.html
- 2 Beaver AC, Cheatham ML. Life-threatening nail gun injuries. Am Surg 1999; 65 (12) 1113-1116
- 3 Pomara C, D'Errico S, Fineschi V, Guglielmi G. Radiological evidence of a modern ‘martyr's crown’: suicide by multiple self-inflicted nail gun shots. Singapore Med J 2012; 53 (08) e169-e171
- 4 Viswanathan R, MacArthur DC, Whittle IR. Nail gun injury to the brain: an unusual case of suicide. Scott Med J 1994; 39 (03) 83
- 5 Woodall MN, Alleyne Jr CH. Nail-gun head trauma: a comprehensive review of the literature. J Trauma Acute Care Surg 2012; 73 (04) 993-996
- 6 Vakil MT, Singh AK. A review of penetrating brain trauma: epidemiology, pathophysiology, imaging assessment, complications, and treatment. Emerg Radiol 2017; 24 (03) 301-309
- 7 Esposito DP, Walker JB. Contemporary management of penetrating brain injury. Neurosurg Q 2009; 19 (04) 249-254
- 8 Zyck S, Toshkezi G, Krishnamurthy S. et al. Treatment of penetrating nonmissile traumatic brain injury. Case series and review of the literature. World Neurosurg 2016; 91: 297-307
- 9 Li XS, Yan J, Liu C. et al. Nonmissile penetrating head injuries: surgical management and review of the literature. World Neurosurg 2017; 98: 873.e9-873.e25
- 10 Taylor AG, Peter JC. Patients with retained transcranial knife blades: a high-risk group. J Neurosurg 1997; 87 (04) 512-515
- 11 Kieck CF, de Villiers JC. Vascular lesions due to transcranial stab wounds. J Neurosurg 1984; 60 (01) 42-46
- 12 du Trevou MD, van Dellen JR. Penetrating stab wounds to the brain: the timing of angiography in patients presenting with the weapon already removed. Neurosurgery 1992; 31 (05) 905-911 , discussion 911–912
- 13 Litvack ZN, Hunt MA, Weinstein JS, West GA. Self-inflicted nail-gun injury with 12 cranial penetrations and associated cerebral trauma. Case report and review of the literature. J Neurosurg 2006; 104 (05) 828-834
- 14 Thomas S, Daudia A, Jones NS. Endoscopic removal of foreign body from the anterior cranial fossa. J Laryngol Otol 2007; 121 (08) 794-795
- 15 Petersen K, Waterman P. Prophylaxis and treatment of infections associated with penetrating traumatic injury. Expert Rev Anti Infect Ther 2011; 9 (01) 81-96
- 16 Loggini A, Vasenina VI, Mansour A. et al. Management of civilians with penetrating brain injury: a systematic review. J Crit Care 2020; 56: 159-166
- 17 Harmon LA, Haase DJ, Kufera JA. et al. Infection after penetrating brain injury-An Eastern Association for the Surgery of Trauma multicenter study oral presentation at the 32nd annual meeting of the Eastern Association for the Surgery of Trauma, January 15-19, 2019, in Austin, Texas. J Trauma Acute Care Surg 2019; 87 (01) 61-67
- 18 Bayston R, de Louvois J, Brown EM, Johnston RA, Lees P, Pople IK. Use of antibiotics in penetrating craniocerebral injuries. Lancet 2000; 355 (9217): 1813-1817
- 19 Kazim SF, Shamim MS, Tahir MZ, Enam SA, Waheed S. Management of penetrating brain injury. J Emerg Trauma Shock 2011; 4 (03) 395-402
- 20 Temkin NR. Risk factors for posttraumatic seizures in adults. Epilepsia 2003; 44 (s10): 18-20
- 21 Frey LC. Epidemiology of posttraumatic epilepsy: a critical review. Epilepsia 2003; 44 (s10): 11-17
- 22 Ritter AC, Wagner AK, Fabio A. et al. Incidence and risk factors of posttraumatic seizures following traumatic brain injury: a traumatic brain injury model systems study. Epilepsia 2016; 57 (12) 1968-1977
- 23 Salazar AM, Jabbari B, Vance SC, Grafman J, Amin D, Dillon JD. Epilepsy after penetrating head injury. I. Clinical correlates: a report of the Vietnam Head Injury Study. Neurology 1985; 35 (10) 1406-1414
- 24 Weiss GH, Salazar AM, Vance SC, Grafman JH, Jabbari B. Predicting posttraumatic epilepsy in penetrating head injury. Arch Neurol 1986; 43 (08) 771-773
- 25 Rojas K, Birrer K. Seizure Prophylaxis In Patients With Traumatic Brain Injury (TBI). Department of Surgical Education, Orlando Regional Medical Center. Published 2017. Accessed September 26, 2020 at: http://www.surgicalcriticalcare.net/Guidelines/Seizure%20prophylaxis%20in%20TBI%202017.pdf
Address for correspondence
Publikationsverlauf
Eingereicht: 07. Dezember 2021
Angenommen: 29. März 2022
Artikel online veröffentlicht:
24. Juni 2022
© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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References
- 1 Centers for Disease Control and Prevention.. Nailing down the need for nail gun safety. Updated July 31, 2018. Accessed September 26, 2020 at: https://www.cdc.gov/niosh/newsroom/feature/nailgunsafety/default.html
- 2 Beaver AC, Cheatham ML. Life-threatening nail gun injuries. Am Surg 1999; 65 (12) 1113-1116
- 3 Pomara C, D'Errico S, Fineschi V, Guglielmi G. Radiological evidence of a modern ‘martyr's crown’: suicide by multiple self-inflicted nail gun shots. Singapore Med J 2012; 53 (08) e169-e171
- 4 Viswanathan R, MacArthur DC, Whittle IR. Nail gun injury to the brain: an unusual case of suicide. Scott Med J 1994; 39 (03) 83
- 5 Woodall MN, Alleyne Jr CH. Nail-gun head trauma: a comprehensive review of the literature. J Trauma Acute Care Surg 2012; 73 (04) 993-996
- 6 Vakil MT, Singh AK. A review of penetrating brain trauma: epidemiology, pathophysiology, imaging assessment, complications, and treatment. Emerg Radiol 2017; 24 (03) 301-309
- 7 Esposito DP, Walker JB. Contemporary management of penetrating brain injury. Neurosurg Q 2009; 19 (04) 249-254
- 8 Zyck S, Toshkezi G, Krishnamurthy S. et al. Treatment of penetrating nonmissile traumatic brain injury. Case series and review of the literature. World Neurosurg 2016; 91: 297-307
- 9 Li XS, Yan J, Liu C. et al. Nonmissile penetrating head injuries: surgical management and review of the literature. World Neurosurg 2017; 98: 873.e9-873.e25
- 10 Taylor AG, Peter JC. Patients with retained transcranial knife blades: a high-risk group. J Neurosurg 1997; 87 (04) 512-515
- 11 Kieck CF, de Villiers JC. Vascular lesions due to transcranial stab wounds. J Neurosurg 1984; 60 (01) 42-46
- 12 du Trevou MD, van Dellen JR. Penetrating stab wounds to the brain: the timing of angiography in patients presenting with the weapon already removed. Neurosurgery 1992; 31 (05) 905-911 , discussion 911–912
- 13 Litvack ZN, Hunt MA, Weinstein JS, West GA. Self-inflicted nail-gun injury with 12 cranial penetrations and associated cerebral trauma. Case report and review of the literature. J Neurosurg 2006; 104 (05) 828-834
- 14 Thomas S, Daudia A, Jones NS. Endoscopic removal of foreign body from the anterior cranial fossa. J Laryngol Otol 2007; 121 (08) 794-795
- 15 Petersen K, Waterman P. Prophylaxis and treatment of infections associated with penetrating traumatic injury. Expert Rev Anti Infect Ther 2011; 9 (01) 81-96
- 16 Loggini A, Vasenina VI, Mansour A. et al. Management of civilians with penetrating brain injury: a systematic review. J Crit Care 2020; 56: 159-166
- 17 Harmon LA, Haase DJ, Kufera JA. et al. Infection after penetrating brain injury-An Eastern Association for the Surgery of Trauma multicenter study oral presentation at the 32nd annual meeting of the Eastern Association for the Surgery of Trauma, January 15-19, 2019, in Austin, Texas. J Trauma Acute Care Surg 2019; 87 (01) 61-67
- 18 Bayston R, de Louvois J, Brown EM, Johnston RA, Lees P, Pople IK. Use of antibiotics in penetrating craniocerebral injuries. Lancet 2000; 355 (9217): 1813-1817
- 19 Kazim SF, Shamim MS, Tahir MZ, Enam SA, Waheed S. Management of penetrating brain injury. J Emerg Trauma Shock 2011; 4 (03) 395-402
- 20 Temkin NR. Risk factors for posttraumatic seizures in adults. Epilepsia 2003; 44 (s10): 18-20
- 21 Frey LC. Epidemiology of posttraumatic epilepsy: a critical review. Epilepsia 2003; 44 (s10): 11-17
- 22 Ritter AC, Wagner AK, Fabio A. et al. Incidence and risk factors of posttraumatic seizures following traumatic brain injury: a traumatic brain injury model systems study. Epilepsia 2016; 57 (12) 1968-1977
- 23 Salazar AM, Jabbari B, Vance SC, Grafman J, Amin D, Dillon JD. Epilepsy after penetrating head injury. I. Clinical correlates: a report of the Vietnam Head Injury Study. Neurology 1985; 35 (10) 1406-1414
- 24 Weiss GH, Salazar AM, Vance SC, Grafman JH, Jabbari B. Predicting posttraumatic epilepsy in penetrating head injury. Arch Neurol 1986; 43 (08) 771-773
- 25 Rojas K, Birrer K. Seizure Prophylaxis In Patients With Traumatic Brain Injury (TBI). Department of Surgical Education, Orlando Regional Medical Center. Published 2017. Accessed September 26, 2020 at: http://www.surgicalcriticalcare.net/Guidelines/Seizure%20prophylaxis%20in%20TBI%202017.pdf
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