0000000000910417

AUTHOR

Johannes Kerschbaumer

showing 3 related works from this author

Development and external validation of a clinical prediction model for functional impairment after intracranial tumor surgery

2021

OBJECTIVE Decision-making for intracranial tumor surgery requires balancing the oncological benefit against the risk for resection-related impairment. Risk estimates are commonly based on subjective experience and generalized numbers from the literature, but even experienced surgeons overestimate functional outcome after surgery. Today, there is no reliable and objective way to preoperatively predict an individual patient’s risk of experiencing any functional impairment. METHODS The authors developed a prediction model for functional impairment at 3 to 6 months after microsurgical resection, defined as a decrease in Karnofsky Performance Status of ≥ 10 points. Two prospective registries in…

AdultMaleMicrosurgerymedicine.medical_specialtyFunctional impairmentAdolescentIntracranial tumorNerve manipulationoutcome predictionYoung Adult03 medical and health sciencesPostoperative Complications0302 clinical medicinePredictive Value of TestsHumansMedicineGeneralizability theoryneurosurgeryProspective StudiesRegistriesKarnofsky Performance StatusAgedRetrospective StudiesAged 80 and overBrain Neoplasmsbusiness.industryExternal validationArea under the curveReproducibility of ResultsGeneral MedicineMiddle AgedSurgerypredictive analyticsmachine learningfunctional impairment030220 oncology & carcinogenesisoncologyCohortFemaleNeurosurgerybusiness030217 neurology & neurosurgeryJournal of Neurosurgery
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The association of patient age with postoperative morbidity and mortality following resection of intracranial tumors

2021

Abstract Introduction The postoperative functional status of patients with intracranial tumors is influenced by patient-specific factors, including age. Research question This study aimed to elucidate the association between age and postoperative morbidity or mortality following the resection of brain tumors. Material and methods A multicenter database was retrospectively reviewed. Functional status was assessed before and 3–6 months after tumor resection by the Karnofsky Performance Scale (KPS). Uni- and multivariable linear regression were used to estimate the association of age with postoperative change in KPS. Logistic regression models for a ≥10-point decline in KPS or mortality were b…

medicine.medical_specialtyKPSTumor resectionLogistic regressionIntracranial tumorResection03 medical and health sciences0302 clinical medicineAgePatient agemedicineIn patient10. No inequalityRC346-429OutcomeMultivariable linear regressionbusiness.industryFunctional statusOdds ratioSurgery030220 oncology & carcinogenesisFunctional statusRisk factorNeurology. Diseases of the nervous systembusiness030217 neurology & neurosurgeryBrain and Spine
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Spinal ependymoma in adults: a multicenter investigation of surgical outcome and progression-free survival

2018

OBJECTIVESpinal ependymomas are rare glial neoplasms. Because their incidence is low, only a few larger studies have investigated this condition. There are no clear data concerning prognosis and therapy. The aim of the study was to describe the natural history, perioperative clinical course, and local tumor control of adult patients with spinal ependymomas who were surgically treated under modern treatment standards.METHODSThe authors performed a multicenter retrospective study. They identified 158 adult patients with spinal ependymomas who had received surgical treatment between January 2006 and June 2013. The authors analyzed the clinical and histological aspects of these cases to identif…

AdultMaleEpendymomaMicrosurgerymedicine.medical_specialtyAdolescentSpinal intradural tumormedicine.medical_treatmentYoung Adult03 medical and health sciences0302 clinical medicineRecurrenceNeoplasmsBiomarkers TumormedicineHumansSpinal Cord NeoplasmsProgression-free survivalGrading (tumors)AgedRetrospective StudiesAged 80 and overSpinal cordbusiness.industryIncidence (epidemiology)Retrospective cohort studyGeneral MedicinePerioperativeMiddle AgedPrognosismedicine.diseaseProgression-Free Survivalddc:616.8SurgeryRadiation therapyKi-67 AntigenLocalOncologyEpendymomaTumor progression030220 oncology & carcinogenesisFemaleRadiotherapy AdjuvantNeoplasm Recurrence Localbusiness030217 neurology & neurosurgeryFollow-Up StudiesJournal of Neurosurgery: Spine
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