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Bründl E, Proescholdt M, Schödel P, Rosengarth K, Störr EM, Bele S, Kieninger M, Malsy M, Schmidt NO, Schebesch KM. Both coiling and clipping induce the time-dependent release of endogenous neuropeptide Y into serum. Front Neurol 2024; 14:1325950. [PMID: 38425753 PMCID: PMC10902915 DOI: 10.3389/fneur.2023.1325950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 12/14/2023] [Indexed: 03/02/2024] Open
Abstract
Background The vaso- and psychoactive endogenous Neuropeptide Y (NPY) has repeatedly been shown to be excessively released after subarachnoid hemorrhage and in numerous psychiatric disorders. NPY is stored in sympathetic perivascular nerve fibers around the major cerebral arteries. This prospective study was designed to analyze the impact of microsurgical and endovascular manipulation of the cerebral vasculature versus cranio- and durotomy alone on the serum levels of NPY. Methods 58 patients (drop-out n = 3; m:f = 26:29; mean age 52.0 ± 14.1 years) were prospectively enrolled. The vascular group underwent repair for unruptured intracranial aneurysms (UIA) of the anterior circulation [endovascular aneurysm occlusion (EV) n = 13; microsurgical clipping (MS) n = 17]; in the non-vascular group, 14 patients received microsurgical resection of a small-sized convexity meningioma (CM), and 11 patients with surgically treated degenerative lumbar spine disease (LD) served as control. Plasma was drawn (1) before treatment (t0), (2) periprocedurally (t1), (3) 6 h postprocedurally (t2), (4) 72 h postprocedurally (t3), and (5) at the 6-week follow-up (FU; t4) to determine the NPY levels via competitive enzyme immunoassay in duplicate serum samples. We statistically evaluated differences between groups by calculating one-way ANOVA and for changes along the time points using repeated measure ANOVA. Results Except for time point t0, the serum concentrations of NPY ranged significantly higher in the vascular than in the non-vascular group (p < 0.001), with a slight decrease in both vascular subgroups 6 h postprocedurally, followed by a gradual increase above baseline levels until FU. At t3, the EV subgroup showed significantly higher NPY levels (mean ± standard deviation) than the MS subgroup (0.569 ± 0.198 ng/mL vs. 0.415 ± 0.192 ng/mL, p = 0.0217). The highest NPY concentrations were measured in the EV subgroup at t1, t3, and t4, reaching a climax at FU (0.551 ± 0.304 ng/mL). Conclusion Our study reveals a first insight into the short-term dynamics of the serum levels of endogenous NPY in neurosurgical and endovascular procedures, respectively: Direct manipulation within but also next to the major cerebral arteries induces an excessive release of NPY into the serum. Our findings raise the interesting question of the potential capacity of NPY in modulating the psycho-behavioral outcome of neurovascular patients.
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Affiliation(s)
- Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Martin Proescholdt
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Petra Schödel
- Department of Orthopedics, Trauma and Hand Surgery, Section Neurosurgery, Medical Center St. Elisabeth, Straubing, Germany
| | - Katharina Rosengarth
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Eva-Maria Störr
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Sylvia Bele
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Martin Kieninger
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Manuela Malsy
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Nils Ole Schmidt
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Karl-Michael Schebesch
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
- Department of Neurosurgery, Paracelsus Medical Private University, Nuremberg, Germany
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Mederer T, Deuter D, Bründl E, Forras P, Schmidt NO, Kohl Z, Schlaier J. Factors influencing the reliability of intraoperative testing in deep brain stimulation for Parkinson's disease. Acta Neurochir (Wien) 2023; 165:2179-2187. [PMID: 37266718 PMCID: PMC10409887 DOI: 10.1007/s00701-023-05624-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/04/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Several meta-analyses comparing the outcome of awake versus asleep deep brain stimulation procedures could not reveal significant differences concerning the postoperative improvement of motor symptoms. Only rarely information on the procedural details is provided for awake operations and how often somnolence and disorientation occurred, which might hamper the reliability of intraoperative clinical testing. The aim of our study was to investigate possible influencing factors on the occurrence of somnolence and disorientation in awake DBS procedures. METHODS We retrospectively analyzed 122 patients with Parkinson's disease having received implantation of a DBS system at our centre. Correlation analyses were performed for the duration of disease prior to surgery, number of microelectrode trajectories, AC-PC-coordinates of the planned target, UPDRS-scores, intraoperative application of sedative drugs, duration of the surgical procedure, perioperative application of apomorphine, and the preoperative L-DOPA equivalence dosage with the occurrence of intraoperative somnolence and disorientation. RESULTS Patients with intraoperative somnolence were significantly older (p=0.039). Increased duration of the DBS procedure (p=0.020), delayed start of the surgery (p=0.049), higher number of MER trajectories (p=0.041), and the patients' % UPDRS improvement (p=0.046) also correlated with the incidence of intraoperative somnolence. We identified the main contributing factor to intraoperative somnolence as the use of sedative drugs applied during skin incision and burr hole trepanation (p=0.019). Perioperatively applied apomorphine could reduce the occurrence of somnolent phases during the operation (p=0.026). CONCLUSION Several influencing factors were found to seemingly increase the risk of intraoperative somnolence and disorientation, while the use of sedative drugs seems to be the main contributing factor. We argue that awake DBS procedures should omit the use of sedatives for best clinical outcome. When reporting on awake DBS surgery these factors should be considered and adjusted for, to permit reliable interpretation and comparison of DBS study results.
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Affiliation(s)
- Tobias Mederer
- Department of Neurosurgery, University Hospital Regensburg, Franz-Josef-Strauß Allee 11, 93053, Regensburg, Germany
| | - Daniel Deuter
- Department of Neurosurgery, University Hospital Regensburg, Franz-Josef-Strauß Allee 11, 93053, Regensburg, Germany
| | - Elisabeth Bründl
- Department of Neurosurgery, University Hospital Regensburg, Franz-Josef-Strauß Allee 11, 93053, Regensburg, Germany
| | - Patricia Forras
- Regensburg Regional Hospital for Forensic Health Psychiatry and Neurology, Universitätsstraße 84, 93053, Regensburg, Germany
| | - Nils Ole Schmidt
- Department of Neurosurgery, University Hospital Regensburg, Franz-Josef-Strauß Allee 11, 93053, Regensburg, Germany
| | - Zacharias Kohl
- Regensburg Regional Hospital for Forensic Health Psychiatry and Neurology, Universitätsstraße 84, 93053, Regensburg, Germany
| | - Jürgen Schlaier
- Department of Neurosurgery, University Hospital Regensburg, Franz-Josef-Strauß Allee 11, 93053, Regensburg, Germany.
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Bründl E, Proescholdt M, Störr EM, Schödel P, Bele S, Zeman F, Hohenberger C, Kieninger M, Schmidt NO, Schebesch KM. The endogenous neuropeptide calcitonin gene-related peptide after spontaneous subarachnoid hemorrhage–A potential psychoactive prognostic serum biomarker of pain-associated neuropsychological symptoms. Front Neurol 2022; 13:889213. [PMID: 35968282 PMCID: PMC9366609 DOI: 10.3389/fneur.2022.889213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 07/05/2022] [Indexed: 11/19/2022] Open
Abstract
Background The pronociceptive neuromediator calcitonin gene-related peptide (CGRP) is associated with pain transmission and modulation. After spontaneous subarachnoid hemorrhage (sSAH), the vasodilatory CGRP is excessively released into cerebrospinal fluid (CSF) and serum and modulates psycho-behavioral function. In CSF, the hypersecretion of CGRP subacutely after good-grade sSAH was significantly correlated with an impaired health-related quality of life (hrQoL). Now, we prospectively analyzed the treatment-specific differences in the secretion of endogenous CGRP into serum after good-grade sSAH and its impact on hrQoL. Methods Twenty-six consecutive patients (f:m = 13:8; mean age 50.6 years) with good-grade sSAH were enrolled (drop out n = 5): n = 9 underwent endovascular aneurysm occlusion, n = 6 microsurgery, and n = 6 patients with perimesencephalic SAH received standardized intensive medical care. Plasma was drawn daily from day 1 to 10, at 3 weeks, and at the 6-month follow-up (FU). CGRP levels were determined with competitive enzyme immunoassay in duplicate serum samples. All patients underwent neuropsychological self-report assessment after the onset of sSAH (t1: day 11–35) and at the FU (t2). Results During the first 10 days, the mean CGRP levels in serum (0.470 ± 0.10 ng/ml) were significantly lower than the previously analyzed mean CGRP values in CSF (0.662 ± 0.173; p = 0.0001). The mean serum CGRP levels within the first 10 days did not differ significantly from the values at 3 weeks (p = 0.304). At 6 months, the mean serum CGRP value (0.429 ± 0.121 ng/ml) was significantly lower compared to 3 weeks (p = 0.010) and compared to the first 10 days (p = 0.026). Higher mean serum CGRP levels at 3 weeks (p = 0.001) and at 6 months (p = 0.005) correlated with a significantly poorer performance in the item pain, and, at 3 weeks, with a higher symptom burden regarding somatoform syndrome (p = 0.001) at t2. Conclusion Our study reveals the first insight into the serum levels of endogenous CGRP in good-grade sSAH patients with regard to hrQoL. In serum, upregulated CGRP levels at 3 weeks and 6 months seem to be associated with a poorer mid-term hrQoL in terms of pain. In migraineurs, CGRP receptor antagonists have proven clinical efficacy. Our findings corroborate the potential capacity of CGRP in pain processing.
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Affiliation(s)
- Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
- *Correspondence: Elisabeth Bründl
| | - Martin Proescholdt
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Eva-Maria Störr
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Petra Schödel
- Section Neurosurgery, Department of Orthopedics, Trauma and Hand Surgery, Medical Center St. Elisabeth, Straubing, Germany
| | - Sylvia Bele
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Regensburg, Germany
| | - Christoph Hohenberger
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Martin Kieninger
- Department of Anesthesiology, University Medical Center Regensburg, Regensburg, Germany
| | - Nils Ole Schmidt
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
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Kieninger M, Meichelböck K, Bele S, Bründl E, Graf B, Schmidt NO, Schebesch KM. Brain multimodality monitoring in patients suffering from acute aneurysmal subarachnoid hemorrhage: clinical value and complications. J Integr Neurosci 2021; 20:703-710. [PMID: 34645104 DOI: 10.31083/j.jin2003075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/20/2021] [Accepted: 07/07/2021] [Indexed: 11/06/2022] Open
Abstract
Brain multimodality monitoring measuring brain tissue oxygen pressure, cerebral blood flow, and cerebral near-infrared spectroscopy may help optimize the neurocritical care of patients with aneurysmal subarachnoid hemorrhage and delayed cerebral ischemia. We retrospectively looked for complications associated with the placement of the probes and checked the reliability of the different tools used for multimodality monitoring. In addition, we screened for therapeutic measures derived in cases of pathological values in multimodality monitoring in 26 patients with acute aneurysmal subarachnoid hemorrhage. Computed tomography scans showed minor hemorrhage along with the probes in 12 patients (46.2%). Missing transmission of values was observed in 34.1% of the intended time of measurement for cerebral blood flow probes and 15.5% and 16.2%, respectively, for the two kinds of probes measuring brain tissue oxygen pressure. We identified 744 cumulative alarming values transmitted from multimodality monitoring. The most frequent intervention was modifying minute ventilation (29%). Less frequent interventions were escalating the norepinephrine dosage (19.9%), elevating cerebral perfusion pressure (14.9%) or inspiratory fraction of inspired oxygen (7.5%), transfusing red blood cell concentrates (1.2%), initiating further diagnostics (2.3%) and neurosurgical interventions (1.9%). As well, 355 cases of pathological values had no therapeutic consequence. The reliability of the measuring tools for multimodality monitoring regarding a continuous transmission of values must be improved, particularly for cerebral blood flow monitoring. The overall high rate of missing therapeutic responses to pathological values derived from multimodality monitoring in patients with aneurysmal subarachnoid hemorrhage underlines the need for structured tiered algorithms. In addition, such algorithms are the basic requirement for prospective multicenter studies, which are urgently needed to evaluate the role of multimodality monitoring in treating these patients.
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Affiliation(s)
- Martin Kieninger
- Department of Anesthesiology, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Katharina Meichelböck
- Department of Anesthesiology, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Sylvia Bele
- Department of Neurosurgery, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Bernhard Graf
- Department of Anesthesiology, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Nils Ole Schmidt
- Department of Neurosurgery, University Medical Center Regensburg, 93053 Regensburg, Germany
| | - Karl-Michael Schebesch
- Department of Neurosurgery, University Medical Center Regensburg, 93053 Regensburg, Germany
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Hohenberger C, Brawanski A, Bründl E, Ullrich OW, Zeman F, Schebesch KM. Development of cerebrospinal fluid fistula after incidental durotomy in spinal decompression surgery. J Neurosurg Sci 2019; 66:96-102. [PMID: 31680503 DOI: 10.23736/s0390-5616.19.04721-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Incidental durotomy (ID) during spinal surgery is a risk factor for the development of cerebrospinal fluid (CSF) fistula. The rates of ID with or without consecutive CSF fistula vary according to the extent of the surgical procedure. Revision surgery has the highest rates of dural tears. However, not every case of ID leads to CSF fistula requiring revision surgery. The objective of this study was to analyze the predictors for the development of CSF fistula after ID. METHODS This retrospective study included 6024 consecutive patients who had been surgically treated for degenerative spinal disease at our clinic over the past 15 years. Patients who had undergone surgical revision for CSF fistula were assigned to the CSF fistula group. A matched 3:1 control group (ID group) was formed of patients with ID but without CSF fistula. Charts, surgical reports, and radiographic data were reviewed and statistically analyzed for demographics, duration of symptoms, co-morbidities, surgical strategy, and pre- and postoperative neurological performance. RESULTS The 15-year incidence of CSF fistula in the overall population was 0.36% (n=22). The following locations were affected: n=18 lumbar (81.8%), n=2 cervical (9.1%), and n=2 thoracic (9.1%). The extent of ID was similar in both groups. The two groups did not significantly differ with regard to the intraoperative management of dural repair with primary suturing (p=0.345), dural patches, sealant, or collagen matrix (p=0.228; p=0.081; p=0.081). In the postoperative period, bed rest in supine position for 48 hours (p=0.037) and laxative therapy (p=0.034) were the most beneficial treatment modalities for preventing CSF fistula. Patients with CSF fistula were hospitalized significantly longer (21 days vs. 10 days in the control group; p<0.001). CONCLUSIONS This large test group showed a low incidence of postoperative CSF fistula after intraoperative ID. Bed rest and laxative treatment were important approaches to preventing CSF fistula.
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Affiliation(s)
- Christoph Hohenberger
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany -
| | - Alexander Brawanski
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Odo W Ullrich
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Regensburg, Germany
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Kieninger M, Windorfer M, Eissnert C, Zech N, Bele S, Zeman F, Bründl E, Graf B, Künzig H. Impact of bedside percutaneous dilational and open surgical tracheostomy on intracranial pressure, pulmonary gas exchange, and hemodynamics in neurocritical care patients. Medicine (Baltimore) 2019; 98:e17011. [PMID: 31464959 PMCID: PMC6736110 DOI: 10.1097/md.0000000000017011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aim was to compare the impact of bedside percutaneous dilational tracheostomy (PDT) and open surgical technique (ST) on intracranial pressure (ICP), pulmonary gas exchange and hemodynamics.We retrospectively analyzed data of 92 neurocritical care patients with invasive ICP monitoring during either PDT (43 patients) or ST (49 patients).Peak ICP levels were higher during PDT (22 [17-38] mm Hg vs 19 [13-27] mm Hg, P = .029). Mean oxygen saturation (SpO2) and end-tidal carbon dioxide partial pressure (etCO2) did not differ. Episodes with relevant desaturation (SpO2 < 90%) or hypercapnia (etCO2 > 50 mm Hg) occurred rarely (5/49 during ST vs 3/43 during PDT for SpO2 < 90%; 2/49 during ST vs 5/43 during PDT for hypercapnia). Drops in mean arterial pressure (MAP) below 60 mm Hg were seen more often during PDT (8/43 vs 2/49, P = .026). Mean infusion rate of norepinephrine did not differ (0.52 mg/h during ST vs 0.45 mg/h during PDT). No fatal complications were observed.Tracheostomy can be performed as ST and PDT safely in neurocritical care patients. The impact on ICP, pulmonary gas exchange and hemodynamics remains within an unproblematic range.
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Affiliation(s)
| | | | | | | | | | - Florian Zeman
- Centre for Clinical Studies, University Hospital Regensburg, Germany
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Bründl E, Proescholdt M, Schödel P, Bele S, Höhne J, Zeman F, Stoerr EM, Brawanski A, Schebesch KM. Excessive release of endogenous neuropeptide Y into cerebrospinal fluid after treatment of spontaneous subarachnoid haemorrhage and its possible impact on self-reported neuropsychological performance - results of a prospective clinical pilot study on good-grade patients. Neurol Res 2018; 40:1001-1013. [PMID: 30213237 DOI: 10.1080/01616412.2018.1508547] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVES Neuropsychological dysfunction after treatment of spontaneous subarachnoid haemorrhage (sSAH) is common but underreported. The vasoconstrictor neuropeptide Y (NPY) is excessively released after sSAH and in psychiatric disorders. We prospectively analysed the treatment-specific differences in the secretion of endogenous cerebrospinal fluid (CSF) NPY during the acute stage after sSAH and its impact on cognitive processing. METHODS A total of 26 consecutive patients (f:m = 13:8; mean age 50.6 years) with good-grade sSAH were enrolled (drop out n = 5): n = 9 underwent endovascular aneurysm occlusion, n = 6 microsurgery, and n = 6 patients with perimesencephalic SAH received standardized intensive medical care. Ventricular CSF was drawn daily from day 1-10. CSF NPY levels were determined with competitive enzyme immunoassay. All patients underwent neuropsychological self-report assessment [36-Item Short Form Health Survey (SF-36) and ICD-10-Symptom-Rating questionnaire (ISR)] after the onset of sSAH (day 11-35; t1) and at the 6-month follow-up (t2). RESULTS At t1, increased mean levels of NPY in CSF significantly correlated with impaired performance in most ISR scores (ISR total p = .018, depression p = .035, anxiety p = .008, nutrition disorder p = .047, supplementary items p = .038) and in several psychological SF-36 items (vitality p = .019, general mental health p = .001, mental component summary p = .025). DISCUSSION To the best of our knowledge, this study is the first to correlate the levels of endogenous NPY in supratentorial CSF with cognitive outcome in good-grade sSAH patients. Excessive NPY release into CSF may have a short-term influence on the pathogenesis of neuropsychological deficits. The impact of cerebrovascular manipulation on NPY release has to be further elucidated. ABBREVIATIONS ANOVA: analysis of variance; aSAH: aneurysmal subarachnoid haemorrhage; AUC: area under the curve; CBF: cerebral blood flow; CSF: cerebrospinal fluid; CT (scan): computed tomography (scan); CV: cerebral vasospasm; DIND: delayed ischemic neurological deficit; DSA: digital subtraction angiography; EIA: enzyme immunoassay; EV: endovascular aneurysm occlusion; EVD: external ventricular drainage; FU: 6-month follow-up; GCS: Glasgow Coma Scale; Ghp: general health perceptions; GOS: Glasgow Outcome Scale; h: hour/s; HH: Hunt and Hess; ICU: intensive care unit; ISR: ICD-10-Symptom-Rating questionnaire; MCS: mental component summary; Mhi: general mental health; min: minute/s; min-max: minimum - maximum; ml: millilitre; mRS: modified Ranking Scale; MS: microsurgical clipping, microsurgical aneurysm occlusion; ng: nanograms; no. [n]: number; NPY: Neuropeptide Y; p: p value; Pain: bodily pain; PCS: physical component summary; Pfi: physical functioning; pSAH: perimesencephalic subarachnoid haemorrhage; PTSD: posttraumatic stress disorder; QoL: quality of life; Rawhtran: health transition item; Rolem: role limitations because of emotional problems; Rolph: role limitations due to physical health problems; SAH: subarachnoid haemorrhage; SD: standard deviation; SF-36: 36-Item Short Form Health Survey; Social: social functioning; sSAH: spontaneous subarachnoid haemorrhage; TCD: trans-cranial Doppler ultrasound; (test) t1: test in the sub-acute phase after the onset of bleeding (between day 11 and 35 after subarachnoid haemorrhage); (test) t2: test in the short-term (chronic phase) after treatment at 6-month follow-up; test t1 - t2: intergroup development from t1 to t2; Vital: vitality; vs: versus.
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Affiliation(s)
- Elisabeth Bründl
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Martin Proescholdt
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Petra Schödel
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Sylvia Bele
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Julius Höhne
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Florian Zeman
- b Centre for Clinical Studies , University Medical Centre Regensburg , Regensburg , Germany
| | - Eva-Maria Stoerr
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Alexander Brawanski
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
| | - Karl-Michael Schebesch
- a Department of Neurosurgery , University Medical Centre Regensburg , Regensburg , Germany
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Bründl E, Schödel P, Bele S, Proescholdt M, Scheitzach J, Zeman F, Brawanski A, Schebesch KM. Treatment of Spontaneous Subarachnoid Hemorrhage and Self-Reported Neuropsychological Performance at 6 Months - Results of a Prospective Clinical Pilot Study on Good-Grade Patients. Turk Neurosurg 2018; 28:369-388. [PMID: 29204979 DOI: 10.5137/1019-5149.jtn.21825-17.0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AIM Limited focus has been placed on neuropsychological patient profiles after spontaneous subarachnoid hemorrhage (sSAH). We conducted a prospective controlled study in good-grade sSAH patients to evaluate the time course of treatment-specific differences in cognitive processing after sSAH. MATERIAL AND METHODS Twenty-six consecutive sSAH patients were enrolled (drop out n=5). Nine patients received endovascular aneurysm occlusion (EV), 6 patients were treated microsurgically (MS), and 6 patients with perimesencephalic SAH (pSAH) underwent standardized intensive medical care. No patient experienced serious vasospasm-related ischemic or hemorrhagic complications. All patients were subjected to neuropsychological self-report assessment (36-Item Short Form Health Survey and ICD-10-Symptom-Rating questionnaire) subacutely (day 11 - 35) after the onset of bleeding (t1) and at the 6-month follow-up (FU; t < sub > 2 < /sub > ). RESULTS From t1 to t < sub > 2 < /sub > , MS and EV patients significantly improved in physical functioning (Pfi; p=.001 each) and the physical component summary (p=.010 vs. p=.015). Bodily pain (Pain; MS p=.034) and general health perceptions (EV p=.014) significantly improved, and nutrition disorder (EV p=.008) worsened. At FU, MS patients reported significantly better Pfi (vs. EV p=.046), less Pain (vs. EV p=.040), and more depression (vs. pSAH p=.035). Group-rate analyses of test differences showed a significant alleviation in nutrition disorder in MS (vs. EV p=.009). CONCLUSION All sSAH groups reported a significant deterioration in health. Though both MS and EV patients, improved in several physical items over time, our data suggest a better short-term Pfi, less Pain and improved nutrition disorder in surgically treated patients. pSAH patients performed significantly better in various aspects of physical and psychological functioning than patients with aneurysmal SAH.
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Affiliation(s)
- Elisabeth Bründl
- University Medical Center Regensburg, Department of Neurosurgery, Regensburg, Germany
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Bründl E, Böhm C, Lürding R, Schödel P, Bele S, Hochreiter A, Scheitzach J, Zeman F, Brawanski A, Schebesch KM. Treatment of Unruptured Intracranial Aneurysms and Cognitive Performance: Preliminary Results of a Prospective Clinical Trial. World Neurosurg 2016; 94:145-156. [PMID: 27392894 DOI: 10.1016/j.wneu.2016.06.112] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/26/2016] [Accepted: 06/27/2016] [Indexed: 12/01/2022]
Abstract
BACKGROUND Few studies have addressed the effect of treatment of unruptured intracranial aneurysm (UIA) on cognitive function. OBJECTIVE Neuropsychological assessment after UIA treatment is underreported, and prospective trials have repeatedly been demanded. In 2014, we conducted a prospective controlled study to evaluate the differences in cognitive processing caused by the treatment of anterior circulation UIAs. PATIENTS AND METHODS Thirty patients were enrolled until September 2015. Ten patients received endovascular aneurysm occlusion (EV), 10 patients were treated microsurgically (MS), and 10 patients with surgically treated degenerative lumbar spine disease (LD) served as control. All patients underwent extended standardized neuropsychological assessment before (t1) and 6 weeks after treatment (t2). Tests included verbal, visual, and visuospatial memory, psychomotor functioning, executive functioning, and its subdomains verbal fluency and cognitive flexibility. We statistically evaluated intragroup and intergroup changes. RESULTS Intragroup comparisons and group-rate analysis showed no significant impairment in overall neuropsychological performance, either postinterventionally or postoperatively. However, the postoperative performance in cognitive processing speed, cognitive flexibility, and executive functioning was significantly worse in the MS group than in the EV (P = 0.038) and LD group (P = 0.02). Compared with the EV group, patients with MS showed significant postoperative impairment in a subtest for auditory-verbal memory (Wechsler Memory Scale, Fourth Edition, Logical Memory II; MS vs. EV P = 0.011). The MS group trended toward posttreatment impairment in subtests for verbal fluency and semantic memory (Regensburg Word Fluency Test; MS vs. EV P = 0.083) and in auditory-verbal memory (Wechsler Memory Scale, Fourth Edition, Logical Memory II; MS vs. LD P = 0.06). CONCLUSIONS Our preliminary data showed no effect of anterior circulation UIA treatment on overall neuropsychological function but impaired short-term executive processing in surgically treated patients.
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Affiliation(s)
- Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany.
| | - Christina Böhm
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Ralf Lürding
- Department of Neurology, University Medical Center Regensburg, Regensburg, Germany
| | - Petra Schödel
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Sylvia Bele
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Andreas Hochreiter
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Judith Scheitzach
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Regensburg, Germany
| | - Alexander Brawanski
- Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany
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10
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Terzi MY, Casalis P, Lang V, Zille M, Bründl E, Störr EM, Brawanski A, Vajkoczy P, Thomale U, Piña AL. Effects of pigment epithelium-derived factor on traumatic brain injury. Restor Neurol Neurosci 2014; 33:81-93. [PMID: 25420903 DOI: 10.3233/rnn-140417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE Pigment epithelium-derived factor (PEDF) is a multifunctional protein with antiangiogenic, anti-inflammatory, neurotrophic and neurogenic properties. The effect of PEDF on traumatic brain injury (TBI) has not been explored. In this study, we aimed to show the in vivo effects of PEDF on lesion volume, cell death and cell proliferation after TBI. METHODS Rats were subjected to controlled cortical impact injury (CCII). PEDF mRNA brain levels were measured by RT-PCR. The lesion volume, cell proliferation, cell death and microglia activation were assessed in the brains of lesioned animals with intraventricular alzet infusion of PEDF or aCSF, and intraperitoneal injections of BrdU. RESULTS We detected a significant increase of PEDF mRNA levels after TBI. PEDF intraventricular infusion showed no significant effect on the contusion volume, whereas the number of dead cells, activated microglia, BrdU-positive cells around the lesion were significantly decreased. In contrast, PEDF application increased cell proliferation in the ipsilateral subventricular zone. No effect was found on cell proliferation in the dentate gyrus. CONCLUSION The present work indicates that PEDF acts as a multifunctional agent after TBI influencing cell death, inflammation and cell proliferation.
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Affiliation(s)
- Menderes Yusuf Terzi
- Neurosurgery Department and Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Pablo Casalis
- Neurosurgery Department and Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Veronika Lang
- Neurosurgery Department and Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Marietta Zille
- Experimental Neurology Department, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Elisabeth Bründl
- Neurosurgery Department, Regensburg University Clinic, Regensburg, Germany
| | - Eva-Maria Störr
- Neurosurgery Department, Regensburg University Clinic, Regensburg, Germany
| | | | - Peter Vajkoczy
- Neurosurgery Department and Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ulrich Thomale
- Neurosurgery Department and Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ana Luisa Piña
- Neurosurgery Department and Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
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11
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Bründl E, Schödel P, Ullrich OW, Brawanski A, Schebesch KM. Surgical resection of sporadic and hereditary hemangioblastoma: Our 10-year experience and a literature review. Surg Neurol Int 2014; 5:138. [PMID: 25317353 PMCID: PMC4192902 DOI: 10.4103/2152-7806.141469] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 07/30/2014] [Indexed: 11/07/2022] Open
Abstract
Background: Hemangioblastomas (HBLs) are benign neoplasms that contribute to 1-2.5% of intracranial tumors and 7-12% of posterior fossa lesions in adult patients. HBLs either evolve hereditarily in association with von Hippel–Lindau disease (vHL) or, more prevalently, as solitary sporadic tumors. Only few authors have reported on the clinical presentation and the neurological outcome of HBL. Methods: We retrospectively analyzed the clinical, radiological, surgical, and histopathologic records of 24 consecutive patients (11 men, 13 women; mean age 51.3 years) with HBL of the posterior cranial fossa, who had been treated at our center between 2001 and 2012. We reviewed the current literature, and discussed our findings in the context of previous publications on HBL. The study protocol was approved by the local ethics committee (14-101-0070). Results: Mean time to diagnosis was 14 weeks. The extent of resection (EOR) was total in 20 and near total in 4 patients. Four patients required revision within 24 h because of relevant postoperative bleeding. One patient died within 14 days. One patient required permanent shunting. At discharge, 75% of patients [n = 18, modified Rankin scale (mRS) 0-1] showed no or at least resolved symptoms. Mean follow-up was 21 months. Two recurrences were detected during follow-up. Conclusions: In comparison to other benign entities of the posterior fossa, time to diagnosis was significantly shorter for HBL. This finding indicates the rather aggressive biological behavior of these excessively vascularized tumors. In our series, however, the rate of complete resection was high, and morbidity and mortality rates were within the reported range.
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Affiliation(s)
- Elisabeth Bründl
- Department of Neurosurgery, University Medical Center Regensburg, Germany
| | - Petra Schödel
- Department of Neurosurgery, University Medical Center Regensburg, Germany
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Schebesch KM, Brawanski A, Bele S, Schödel P, Herbst A, Bründl E, Kagerbauer SM, Martin J, Lohmeier A, Stoerr EM, Proescholdt M. Neuropeptide Y - an early biomarker for cerebral vasospasm after aneurysmal subarachnoid hemorrhage. Neurol Res 2013; 35:1038-43. [PMID: 23915659 DOI: 10.1179/1743132813y.0000000246] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES In the human brain, the potent vasoconstrictive neuropeptide Y (NPY) is abundantly expressed. Neuropeptide Y, which is stored in perivascular nerve fibers of the cerebral arteries, regulates the cerebral vascular diameter as well as cerebral blood flow. However, the role of NPY in the pathogenesis of cerebral vasospasm (CV) related to subarachnoid hemorrhage (SAH) is unclear. We prospectively analyzed and compared the release of endogenous NPY in the cerebrospinal fluid (CSF) of 66 patients with SAH to NPY release in a control group. Additionally, we correlated the levels of NPY with CV and consecutive ischemic stroke. METHODS Sixty-six consecutive patients (40 women, 26 men; mean age 53·1 years) with aneurysmal SAH were included. In the SAH group, CSF was drawn daily from day 1 to day 10 after the onset of SAH. The CSF of 29 patients undergoing spinal anesthesia for orthopedic surgery served as control samples. The NPY levels were determined in duplicate CSF samples by means of a competitive enzyme immunoassay (EIA). The levels of NPY in CSF were correlated with the development of CV over the 10-day period after the onset of SAH and to the occurrence of consecutive ischemic stroke. To evaluate CSF NPY levels as a predictive biomarker for vasospasm, we calculated the sensitivity and specificity as well as the positive and negative predictive values. RESULTS The NPY levels were significantly higher in the SAH group than in the control group (p < 0·001). The treatment modality (clip versus coil) did not influence the level of NPY in CSF (p > 0·05). Patients with CV showed significantly higher NPY levels than patients without CV during the entire observation period. The NPY levels of the non-CV group dissipated over time, whereas the CV group showed continuously increasing values. The NPY levels from day 4 to 10 were significantly higher in patients with CV-related stroke than in non-stroke patients. Using 0·3 ng/ml as a cut-off value, NPY levels on day 3 predicted the occurrence of CV with a sensitivity and specificity of 82% and 72%, respectively. High NPY levels, starting on day 4, significantly correlated with poor Glasgow Outcome Score grading at the follow-up (p < 0·05). DISCUSSION Our data indicate that NPY is involved in the pathogenesis of SAH-related CV and ischemia. Neuropeptide Y represents an early and reliable biomarker for the prediction of CV and consecutive stroke due to aneurysmal SAH.
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