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  • 1
    In: Neurosurgery, Ovid Technologies (Wolters Kluwer Health), Vol. 55, No. 2 ( 2004-08-01), p. 307-315
    Kurzfassung: To compare endovascular versus surface methods for the induction and reversal of hypothermia during neurosurgery in a multicenter, prospective, randomized study. METHODS: Patients undergoing elective open craniotomy for repair of an unruptured cerebral aneurysm (n = 153) were randomly assigned (2:1) to undergo whole-body hypothermia to 33°C, either with an endovascular cooling device placed in the inferior vena cava via the femoral vein (n = 92) or with a surface convective air blanket (n = 61). Active rewarming was accomplished using the same devices. RESULTS: Cooling rates in endovascular and surface blanket groups averaged 4.77 and 0.87°C/h, respectively (P & lt; 0.001). When the first temporary arterial or aneurysm clip was placed, 99% of endovascular patients and 20% of surface blanket patients had reached the target of 33°C (P & lt; 0.001). Obese patients were cooled efficiently with the endovascular approach (3.56°C/h). Rewarming rates averaged 1.88°C/h for endovascular patients and 0.69°C/h for surface blanket patients (P & lt; 0.001). By the end of surgery, 89 and 53% of these patients, respectively, had rewarmed to at least 35°C (P & lt; 0.001). On leaving the operating room, 14% of endovascular patients and 28% of surface blanket patients were still intubated (P = 0.035). The overall safety of the two procedures was comparable. No clinically significant catheter-related thrombotic, bleeding, or infectious complications were reported in the endovascular group. CONCLUSION: Endovascular cooling provided superior induction, maintenance, and reversal of hypothermia compared with the surface blanket, without an increase in complications. Endovascular cooling may have clinical benefit for patients undergoing cerebrovascular surgery, as well as patients with acute stroke, head injury, or acute myocardial infarction.
    Materialart: Online-Ressource
    ISSN: 1524-4040 , 0148-396X
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2004
    ZDB Id: 1491894-8
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Online-Ressource
    Online-Ressource
    S. Karger AG ; 2006
    In:  Cerebrovascular Diseases Vol. 22, No. 2-3 ( 2006), p. 109-115
    In: Cerebrovascular Diseases, S. Karger AG, Vol. 22, No. 2-3 ( 2006), p. 109-115
    Kurzfassung: 〈 i 〉 Background: 〈 /i 〉 The natural history of unilateral moyamoya disease (MMD) in adult patients is not clearly described in the literature. We present a series of 18 patients with unilateral MMD and analyze the risk factors for progression to bilateral disease. 〈 i 〉 Methods: 〈 /i 〉 A retrospective review of 157 MMD patients treated at Stanford University Medical Center from 1991 to 2005 identified 28 patients with unilateral MMD (defined as none, equivocal or mild involvement on the contralateral side). 〈 i 〉 Results: 〈 /i 〉 Eigh teen patients (5 males and 13 females) were identified with unilateral MMD and angiographic follow-up of ≧5 months. Mean radiologic follow-up (± standard error of the mean) was 19.3 ± 3.4 months and mean clinical follow-up was 24.5 ± 3.7 months. Five patients had childhood onset MMD and 13 patients had adult onset disease. Angiographic progression from unilateral to bilateral disease was seen in 7 patients (38.9%) at a mean follow-up of 12.7 ± 2.4 months. Four of the 7 patients had significant clinical and radiologic progression requiring surgical intervention. Five of 7 patients that progressed had adult onset MMD. The presence of equivocal or mild stenotic changes of the contralateral anterior cerebral artery (ACA), middle cerebral artery (MCA) or internal carotid artery (ICA) was an important predictor of progression (p 〈 0.01); 6 of 8 patients (75%) with equivocal or mild contralateral disease progressed, whereas only 1 of 10 patients (10.0%) with no initial contralateral disease progressed to bilateral MMD. One patient had mild or equivocal MCA, ICA and ACA stenosis at the time of initial diagnosis and this patient progressed. 〈 i 〉 Conclusions: 〈 /i 〉 Contralateral progression in the adult form occurs more commonly than previously reported. The presence of minor changes in the contralateral ACA, intracranial ICA and MCA is an important predictor of increased risk of progression. Patients with a completely normal angiogram on the contralateral side have a very low risk of progression.
    Materialart: Online-Ressource
    ISSN: 1015-9770 , 1421-9786
    Sprache: Englisch
    Verlag: S. Karger AG
    Publikationsdatum: 2006
    ZDB Id: 1482069-9
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 3
    Online-Ressource
    Online-Ressource
    Journal of Neurosurgery Publishing Group (JNSPG) ; 2008
    In:  Journal of Neurosurgery Vol. 108, No. 6 ( 2008-06), p. 1152-1161
    In: Journal of Neurosurgery, Journal of Neurosurgery Publishing Group (JNSPG), Vol. 108, No. 6 ( 2008-06), p. 1152-1161
    Kurzfassung: Posterior fossa arteriovenous malformations (AVMs) are relatively uncommon and often difficult to treat. The authors present their experience with multimodality treatment of 76 posterior fossa AVMs, with an emphasis on Spetzler–Martin Grades III–V AVMs. Methods Seventy-six patients with posterior fossa AVMs treated with radiosurgery, surgery, and endovascular techniques were analyzed. Results Between 1982 and 2006, 36 patients with cerebellar AVMs, 33 with brainstem AVMs, and 7 with combined cerebellar–brainstem AVMs were treated. Natural history data were calculated for all 76 patients. The risk of hemorrhage from presentation until initial treatment was 8.4% per year, and it was 9.6% per year after treatment and before obliteration. Forty-eight patients had Grades III–V AVMs with a mean follow-up of 4.8 years (range 0.1–18.4 years, median 3.1 years). Fifty-two percent of patients with Grades III–V AVMs had complete obliteration at the last follow-up visit. Three (21.4%) of 14 patients were cured with a single radiosurgery treatment, and 4 (28.6%) of 14 with 1 or 2 radiosurgery treatments. Twenty-one (61.8%) of 34 patients were cured with multimodality treatment. The mean Glasgow Outcome Scale (GOS) score after treatment was 3.8. Multivariate analysis performed in the 48 patients with Grades III–V AVMs showed radiosurgery alone to be a negative predictor of cure (p = 0.0047). Radiosurgery treatment alone was not a positive predictor of excellent clinical outcome (GOS Score 5; p 〉 0.05). Nine (18.8%) of 48 patients had major neurological complications related to treatment. Conclusions Single-treatment radiosurgery has a low cure rate for posterior fossa Spetzler–Martin Grades III–V AVMs. Multimodality therapy nearly tripled this cure rate, with an acceptable risk of complications and excellent or good clinical outcomes in 81% of patients. Radiosurgery alone should be used for intrinsic brainstem AVMs, and multimodality treatment should be considered for all other posterior fossa AVMs.
    Materialart: Online-Ressource
    ISSN: 0022-3085 , 1933-0693
    RVK:
    RVK:
    Sprache: Unbekannt
    Verlag: Journal of Neurosurgery Publishing Group (JNSPG)
    Publikationsdatum: 2008
    ZDB Id: 2026156-1
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 4
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2012
    In:  Neurosurgery Vol. 70, No. 3 ( 2012-03), p. 634-638
    In: Neurosurgery, Ovid Technologies (Wolters Kluwer Health), Vol. 70, No. 3 ( 2012-03), p. 634-638
    Materialart: Online-Ressource
    ISSN: 0148-396X
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2012
    ZDB Id: 1491894-8
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2008
    In:  Neurosurgery Vol. 62, No. 5 ( 2008-05), p. 1048-1052
    In: Neurosurgery, Ovid Technologies (Wolters Kluwer Health), Vol. 62, No. 5 ( 2008-05), p. 1048-1052
    Materialart: Online-Ressource
    ISSN: 0148-396X
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2008
    ZDB Id: 1491894-8
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2008
    In:  Neurosurgery Vol. 62, No. 5 ( 2008-05), p. 1048-1052
    In: Neurosurgery, Ovid Technologies (Wolters Kluwer Health), Vol. 62, No. 5 ( 2008-05), p. 1048-1052
    Materialart: Online-Ressource
    ISSN: 0148-396X
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2008
    ZDB Id: 1491894-8
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    Online-Ressource
    Online-Ressource
    Journal of Neurosurgery Publishing Group (JNSPG) ; 2016
    In:  Journal of Neurosurgery: Pediatrics Vol. 18, No. 6 ( 2016-12), p. 717-723
    In: Journal of Neurosurgery: Pediatrics, Journal of Neurosurgery Publishing Group (JNSPG), Vol. 18, No. 6 ( 2016-12), p. 717-723
    Kurzfassung: Majewski osteodysplastic primordial dwarfism Type II (MOPD II) is a rare genetic disorder. Features of it include extremely small stature, severe microcephaly, and normal or near-normal intelligence. Previous studies have found that more than 50% of patients with MOPD II have intracranial vascular anomalies, but few successful surgical revascularization or aneurysm-clipping cases have been reported because of the diminutive arteries and narrow surgical corridors in these patients. Here, the authors report on a large series of patients with MOPD II who underwent surgery for an intracranial vascular anomaly. METHODS In conjunction with an approved prospective registry of patients with MOPD II, a prospectively collected institutional surgical database of children with MOPD II and intracranial vascular anomalies who underwent surgery was analyzed retrospectively to establish long-term outcomes. RESULTS Ten patients with MOPD II underwent surgery between 2005 and 2012; 5 patients had moyamoya disease (MMD), 2 had intracranial aneurysms, and 3 had both MMD and aneurysms. Patients presented with transient ischemic attack (TIA) (n = 2), ischemic stroke (n = 2), intraparenchymal hemorrhage from MMD (n = 1), and aneurysmal subarachnoid hemorrhage (n = 1), and 4 were diagnosed on screening. The mean age of the 8 patients with MMD, all of whom underwent extracranial-intracranial revascularization (14 indirect, 1 direct) was 9 years (range 1–17 years). The mean age of the 5 patients with aneurysms was 15.5 years (range 9–18 years). Two patients experienced postoperative complications (1 transient weakness after clipping, 1 femoral thrombosis that required surgical repair). During a mean follow-up of 5.9 years (range 3–10 years), 3 patients died (1 of subarachnoid hemorrhage, 1 of myocardial infarct, and 1 of respiratory failure), and 1 patient had continued TIAs. All of the surviving patients recovered to their neurological baseline. CONCLUSIONS Patients with MMD presented at a younger age than those in whom aneurysms were more prevalent. Microneurosurgery with either intracranial bypass or aneurysm clipping is extremely challenging but feasible at expert centers in patients with MOPD II, and good long-term outcomes are possible.
    Materialart: Online-Ressource
    ISSN: 1933-0707 , 1933-0715
    RVK:
    Sprache: Unbekannt
    Verlag: Journal of Neurosurgery Publishing Group (JNSPG)
    Publikationsdatum: 2016
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Online-Ressource
    Online-Ressource
    Journal of Neurosurgery Publishing Group (JNSPG) ; 2021
    In:  Journal of Neurosurgery Vol. 134, No. 1 ( 2021-01), p. 10-16
    In: Journal of Neurosurgery, Journal of Neurosurgery Publishing Group (JNSPG), Vol. 134, No. 1 ( 2021-01), p. 10-16
    Kurzfassung: Moyamoya disease (MMD) disproportionately affects young to middle-aged women. The main treatment for this challenging disease is cerebral bypass surgery. Vascular neurosurgeons often need to counsel women regarding pregnancy following bypass for MMD, but there is a paucity of data. The authors set out to examine neurological and obstetric outcomes in an extensive cohort of MMD patients who had pregnancies following cerebral revascularization at the Stanford Medical Center. METHODS The authors identified all patients at their institution who underwent cerebral bypass for MMD from 1990 through 2018 and who later became pregnant. Some of these patients also had pregnancies prior to undergoing bypass surgery, and the authors examined these pregnancies as well. They performed a chart review and brief telephone survey to identify obstetric complications, transient ischemic attacks (TIAs), and strokes. Neurological and obstetric outcomes were compared to published rates. They also compared pre- and post-bypass pregnancy complication rates using logistic regression techniques. RESULTS There were 71 pregnancies among 56 women whose mean age was 30.5 years. Among 59 post-bypass pregnancies, there were 5 (8%) perinatal TIAs. There were no MRI-confirmed strokes or strokes with residual deficits. Among 12 pre-bypass pregnancies, there were 3 (25%) TIAs and 2 (17%) MRI-confirmed strokes. There were no hemorrhagic complications in either group. In the generalized estimating equations analysis, performing cerebral revascularization prior to pregnancy versus after pregnancy was associated with lower odds of perinatal stroke or TIA (OR 0.15, p = 0.0061). Nine pregnancies (13%) were complicated by preeclampsia, and there was one (1%) instance of eclampsia. The overall rate of cesarean delivery was 39%. There were 2 miscarriages, both occurring in the first trimester. There were no maternal deaths. CONCLUSIONS The authors present neurological and obstetric outcomes data in a large cohort of MMD patients. These data indicate that post-bypass pregnancy is accompanied by low complication rates. There were no ischemic or hemorrhagic strokes among post-bypass pregnant MMD patients. The rate of obstetric complications was low overall. The authors recommend close collaboration between the vascular neurosurgeon and the obstetrician regarding medical management, including blood pressure goals and continuation of low-dose aspirin.
    Materialart: Online-Ressource
    ISSN: 0022-3085 , 1933-0693
    RVK:
    RVK:
    Sprache: Unbekannt
    Verlag: Journal of Neurosurgery Publishing Group (JNSPG)
    Publikationsdatum: 2021
    ZDB Id: 2026156-1
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    Online-Ressource
    Online-Ressource
    Ovid Technologies (Wolters Kluwer Health) ; 2020
    In:  Neurosurgery Vol. 87, No. 6 ( 2020-12), p. 1262-1268
    In: Neurosurgery, Ovid Technologies (Wolters Kluwer Health), Vol. 87, No. 6 ( 2020-12), p. 1262-1268
    Materialart: Online-Ressource
    ISSN: 0148-396X , 1524-4040
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2020
    ZDB Id: 1491894-8
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 10
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    Ovid Technologies (Wolters Kluwer Health) ; 2021
    In:  Neurosurgery Vol. 89, No. Supplement_2 ( 2021-11-18), p. S55-S55
    In: Neurosurgery, Ovid Technologies (Wolters Kluwer Health), Vol. 89, No. Supplement_2 ( 2021-11-18), p. S55-S55
    Materialart: Online-Ressource
    ISSN: 0148-396X , 1524-4040
    RVK:
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2021
    ZDB Id: 1491894-8
    Standort Signatur Einschränkungen Verfügbarkeit
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