Endoscopic repair of spontaneous skull base defects decreases the incidence rate of intracranial complications

Jordan J. Allensworth, Nicholas Rowan, Kristina A. Storck, Bradford A. Woodworth, Rodney J. Schlosser

Research output: Contribution to journalArticle

Abstract

Background: Spontaneous skull base defects can result in life-threatening intracranial complications (ICCs), including meningitis and pneumocephalus. Endoscopic skull base reconstruction (ESBR) has traditionally been the treatment of choice, but its impact upon ICCs is not known. In this study, we aimed to describe the incidence rate of preoperative ICCs in patients with spontaneous skull base defects, risk factors associated with ICC development, and the impact of surgical repair on the incidence rate of ICCs. Methods: A retrospective review was performed of all spontaneous skull base defects undergoing ESBR from 2005 to 2019 at 2 academic tertiary care medical centers. The incidence rate of ICCs and the demographics information and risk factors were collected. Results: In 222 spontaneous skull base defects, preoperative ICCs occurred in 46 subjects (20.7%) with an incidence rate of 22.7 per 100 person-years. Factors significantly associated with preoperative ICCs included symptom duration, reduced body mass index (BMI), resolved cerebrospinal fluid rhinorrhea, and location in the frontal or lateral sphenoid sinuses. Endoscopic repair was successful in 97.2% of subjects and the postoperative ICC incidence rate was significantly reduced at 0.8 per 100 person-years (p < 0.001). Conclusion: Spontaneous skull base defects pose significant risk for life-threatening ICCs. Our findings reveal significantly elevated odds of ICC development associated with resolved CSF rhinorrhea, lower BMI, longer duration of symptoms, and defect location. Endoscopic repair is highly successful with low morbidity and significantly reduces the incidence rate of intracranial complications.

Original languageEnglish (US)
JournalInternational Forum of Allergy and Rhinology
DOIs
StateAccepted/In press - Jan 1 2019

Fingerprint

Skull Base
Incidence
Cerebrospinal Fluid Rhinorrhea
Body Mass Index
Pneumocephalus
Transverse Sinuses
Sphenoid Sinus
Meningitis
Tertiary Care Centers
Demography
Morbidity

Keywords

  • abscess
  • cerebrospinal fluid
  • CSF leak repair
  • endoscopic
  • endoscopic
  • intracranial hypertension
  • meningitis
  • pneumocephalus
  • seizure
  • skull base reconstruction
  • surgery

ASJC Scopus subject areas

  • Immunology and Allergy
  • Otorhinolaryngology

Cite this

Endoscopic repair of spontaneous skull base defects decreases the incidence rate of intracranial complications. / Allensworth, Jordan J.; Rowan, Nicholas; Storck, Kristina A.; Woodworth, Bradford A.; Schlosser, Rodney J.

In: International Forum of Allergy and Rhinology, 01.01.2019.

Research output: Contribution to journalArticle

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abstract = "Background: Spontaneous skull base defects can result in life-threatening intracranial complications (ICCs), including meningitis and pneumocephalus. Endoscopic skull base reconstruction (ESBR) has traditionally been the treatment of choice, but its impact upon ICCs is not known. In this study, we aimed to describe the incidence rate of preoperative ICCs in patients with spontaneous skull base defects, risk factors associated with ICC development, and the impact of surgical repair on the incidence rate of ICCs. Methods: A retrospective review was performed of all spontaneous skull base defects undergoing ESBR from 2005 to 2019 at 2 academic tertiary care medical centers. The incidence rate of ICCs and the demographics information and risk factors were collected. Results: In 222 spontaneous skull base defects, preoperative ICCs occurred in 46 subjects (20.7{\%}) with an incidence rate of 22.7 per 100 person-years. Factors significantly associated with preoperative ICCs included symptom duration, reduced body mass index (BMI), resolved cerebrospinal fluid rhinorrhea, and location in the frontal or lateral sphenoid sinuses. Endoscopic repair was successful in 97.2{\%} of subjects and the postoperative ICC incidence rate was significantly reduced at 0.8 per 100 person-years (p < 0.001). Conclusion: Spontaneous skull base defects pose significant risk for life-threatening ICCs. Our findings reveal significantly elevated odds of ICC development associated with resolved CSF rhinorrhea, lower BMI, longer duration of symptoms, and defect location. Endoscopic repair is highly successful with low morbidity and significantly reduces the incidence rate of intracranial complications.",
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AB - Background: Spontaneous skull base defects can result in life-threatening intracranial complications (ICCs), including meningitis and pneumocephalus. Endoscopic skull base reconstruction (ESBR) has traditionally been the treatment of choice, but its impact upon ICCs is not known. In this study, we aimed to describe the incidence rate of preoperative ICCs in patients with spontaneous skull base defects, risk factors associated with ICC development, and the impact of surgical repair on the incidence rate of ICCs. Methods: A retrospective review was performed of all spontaneous skull base defects undergoing ESBR from 2005 to 2019 at 2 academic tertiary care medical centers. The incidence rate of ICCs and the demographics information and risk factors were collected. Results: In 222 spontaneous skull base defects, preoperative ICCs occurred in 46 subjects (20.7%) with an incidence rate of 22.7 per 100 person-years. Factors significantly associated with preoperative ICCs included symptom duration, reduced body mass index (BMI), resolved cerebrospinal fluid rhinorrhea, and location in the frontal or lateral sphenoid sinuses. Endoscopic repair was successful in 97.2% of subjects and the postoperative ICC incidence rate was significantly reduced at 0.8 per 100 person-years (p < 0.001). Conclusion: Spontaneous skull base defects pose significant risk for life-threatening ICCs. Our findings reveal significantly elevated odds of ICC development associated with resolved CSF rhinorrhea, lower BMI, longer duration of symptoms, and defect location. Endoscopic repair is highly successful with low morbidity and significantly reduces the incidence rate of intracranial complications.

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