Article

Management of cerebrospinal fluid leak associated with craniomaxillofacial trauma

Legacy Emanuel Hospital and Health Center, Department of Oral and Maxillofacial Surgery, Oregon Health & Science University, Portland, USA.
Journal of Oral and Maxillofacial Surgery (Impact Factor: 1.28). 07/2004; 62(6):676-84. DOI: 10.1016/j.joms.2003.08.032
Source: PubMed

ABSTRACT The management of persistent, post-traumatic cerebrospinal fluid (CSF) rhinorrhea and otorrhea remains a surgical challenge. Repair of CSF leaks has evolved from that of an intracranial approach to one that is primarily extracranial and endoscopic. The purpose of this retrospective analysis is to determine the incidence of persistent CSF rhinorrhea and otorrhea and assess the clinical outcomes of patients presenting to a level 1 trauma center with posttraumatic CSF leaks who were managed by both surgical and nonsurgical means.
The records of all patients with basilar skull fractures and/or severe facial trauma presenting to a major level 1 trauma center from 1991 to 2001 were reviewed. Patients diagnosed with CSF otorrhea or rhinorrhea, who had not undergone an intracranial procedure, elevation of depressed skull fractures, or received a ventriculostomy, were identified and their demographics recorded. For purposes of statistical comparison, patients were divided into 2 groups: "leak" and "no leak." All patients in the leak group were initially observed for a period of 7 to 10 days. Persistent CSF leaks were managed by CSF diversion via lumber drainage for 5 to 7 days. Extracranial repair was performed only if lumbar drainage failed to resolve the leak.
Seven hundred thirty-five patients were identified who met the criteria for inclusion in the study. Thirty-four patients (incidence, 4.6%) were identified with CSF leak presenting as otorrhea (n = 25 [75.8%]) or rhinorrhea (n = 9 [26.5%]), which was diagnosed by clinical, laboratory, or radiographic examination (average age, 28.2 years; age range, 2 to 80 years; 23 males and 11 females). All patients in this study experienced successful resolution of CSF otorrhea or rhinorrhea by using a variable combination of observation, CSF diversion, and extracranial repair. There were no complications or cases of meningitis. Twenty-eight patients (84.6%) experienced uncomplicated resolution of the leak without treatment in 2 to 10 days. Persistent CSF leak, defined by drainage greater than 7 days after injury, was identified in 6 patients (incidence, 0.8%), all except 1 who underwent CSF diversion via a lumbar drain for a period of 5 to 10 days. Two of these patients were treated successfully; the remaining 4 patients required surgical procedures.
Post-traumatic CSF leaks are uncommon and will usually resolve without surgical intervention. Successful management in refractory cases often involves a combination of observation, CSF diversion, and/or extracranial and intracranial procedures.

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    ABSTRACT: Cerebrospinal fluid (CSF) rhinorrhea occurs due to communication between the intracranial subarachnoid space and the sinonasal mucosa. It could be due to trauma, raised intracranial pressure (ICP), tumors, erosive diseases, and congenital skull defects. Some leaks could be spontaneous without any specific etiology. The potential leak sites include the cribriform plate, ethmoid, sphenoid, and frontal sinus. Glucose estimation, although non‐specific, is the most popular and readily available method of diagnosis. Glucose concentration of >30 mg/dl without any blood contamination strongly suggests presence and the absence of glucose rules out CSF in the fluid. Beta‐2 transferrin test confirms the diagnosis. High‐resolution computed tomography and magnetic resonance cisternography are complementary to each other and are the investigation of choice. Surgical intervention is indicated, when conservative management fails to prevent risk of meningitis. Endoscopic closure has revolutionized the management of CSF rhinorrhea due to its less morbidity and better closure rate. It is usually best suited for small defects in cribriform plate, sphenoid, and ethmoid sinus. Large defects can be repaired when sufficient experience is acquired. Most frontal sinus leaks, although difficult, can be successfully closed by modified Lothrop procedure. Factors associated with increased recurrences are middle age, obese female, raised ICP, diabetes mellitus, lateral sphenoid leaks, superior and lateral extension in frontal sinus, multiple leaks, and extensive skull base defects. Appropriate treatment for raised ICP, in addition to proper repair, should be done to prevent recurrence. Long follow‐up is required before leveling successful repair as recurrences may occur very late. Key words: Cerebrospinal fluid pressure, cerebrospinal fluid rhinorrhea, cerebrospinal fluid, endoscopic surgical procedure, skull base
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