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Resolution of Chronic Aspiration Pneumonitis Following Endoscopic Endonasal Repair of Spontaneous Cerebrospinal Fluid Fistula of the Skull Base.

ABSTRACT: Spontaneous cerebrospinal fluid (CSF) rhinorrhea due to a skull base defect requires prompt diagnosis and treatment. Multiple surgical options are available for repairing the fistula, including the two-layer "fascial apposition" method and use of a pedicled nasal-septal flap. A 44-year-old obese woman presented with 4 months of progressive cough, exertional dyspnea, hoarseness, and intermittent fluid drainage from the right nostril. Chest computed tomography (CT) imaging and bronchoscopy showed chronic pneumonitis, which was confirmed by pulmonary wedge resection. CT and magnetic resonance imaging of the skull base, as well as laboratory analysis of the nasal fluid for β2-transferrin, confirmed a skull base defect causing CSF rhinorrhea. During surgery, insertion of a lumbar drain with the intrathecal fluorescein administration was performed, followed by endoscopic endonasal repair using an autologous fascial apposition graft and pedicled nasal-septal flap. Both the CSF leak and the pulmonary complications resolved following the operation with no symptoms at 11-month follow-up. This is the first reported case of spontaneous CSF rhinorrhea complicated by chronic aspiration and pneumonitis. Increased diagnostic complexity due to chronic pulmonary complications resulted in unnecessary interventions and treatment delays. Prompt recognition of spontaneous CSF leaks is essential to prevent potentially harmful complications.

SUBMITTER: Seltzer J

PROVIDER: S-EPMC4870059 | biostudies-other | 2016 Jun

REPOSITORIES: biostudies-other

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Project description:ImportanceInjury to the internal carotid artery (ICA) during endoscopic endonasal skull base surgery does not typically occur as an isolated circumstance but often is the result of multiple factors.ObjectiveTo assess the factors associated with ICA injury in an effort to reduce its occurrence.Design, setting, and participantsThis quality improvement study used a multicenter root cause analysis of ICA injuries sustained during endoscopic endonasal skull base surgery performed at 11 tertiary care centers across 4 continents (North America, South America, Europe, and Asia) from January 1, 1993, to December 31, 2018. A fishbone model was built to facilitate the root cause analysis. Patients who underwent an expanded endoscopic endonasal approach that carried a substantial potential risk of an ICA injury were included in the analysis. A questionnaire was completed by surgeons at the centers to assess relevant human, patient, process, technique, instrument, and environmental factors associated with the injury.Main outcomes and measuresRoot cause analysis of demographic, human, patient, process, technique, instrument, and environmental factors as well as mortality and morbidity data.ResultsTwenty-eight cases of ICA injury occurred during 7160 expanded endoscopic endonasal approach procedures (incidence of 0.4%). The mean age of the patients was 49 years, with a female to male predominance ratio of 1.8:1 (18 women to 10 men). Anatomical (23 [82%]), pathological (15 [54%]), and surgical resection (26 [93%]) factors were most frequently reported. The surgeon's mental or physical well-being was reported as inadequate in 4 cases (14%). Suboptimal imaging was reported in 6 cases (21%). The surgeon's experience level was not associated with ICA injury. The ICA injury was associated with use of powered or sharp instruments in 20 cases (71%), and use of new instruments or technology in 7 cases (25%). Two patients (7%) died in the operating room, and 3 (11%) were alive with neurological deficits. Overall, patient-related factors were the most frequently reported risk factors (in 27 of 28 cases [96%]). Factors associated with ICA injury catalyzed a list of preventive recommendations.Conclusions and relevanceThis study found that human factors were associated with intraoperative ICA injuries; however, they were usually accompanied by other deficiencies. These findings suggest that identifying risk factors is crucial for preventing such injuries. Preoperative planning and minimizing the potential for ICA injury also appear to be essential.

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Resolution of Chronic Aspiration Pneumonitis Following Endoscopic Endonasal Repair of Spontaneous Cerebrospinal Fluid Fistula of the Skull Base.

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