Removal Notice to 'Neurosurgical Steps and Lessons Learned in Final Separation of Three-Years-Old Craniopagus Twins' [World Neurosurgery (2022) 18924].

This article has been removed: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/locate/withdrawalpolicy).

Neurosurgical Steps and Lessons Learned in Final Separation of 3-Year-Old Craniopagus Twins.

The only published paper describing the separation of the conjoined twins did not describe the novel steps and techniques of the microsurgery part, which lasted 26 hours. That paper did not include the neurosurgical video, either. The massive intracerebral hemorrhage that occurred on postoperative day 33 was not reported, and its potential causes have not been scrutinized.

Transpedicular direct osteosynthesis of hangman's fracture from a mini-open exposure as a less invasive procedure: A technical note.

This surgical technical case report presents initial clinical experience and preliminary results with a less invasive surgical solution for selected hangman's fracture. A well-known stabilization technique (i.e.

Positioning Accuracy in Otosurgery Measured with Optical Tracking.

Objectives: To assess positioning accuracy in otosurgery and to test the impact of the two-handed instrument holding technique and the instrument support technique on surgical precision. To test an otologic training model with optical tracking.

Study Design: In total, 14 ENT surgeons in the same department with different levels of surgical experience performed static and dynamic tasks with otologic microinstruments under simulated otosurgical conditions.

Modelling pathology from autolog fresh cadaver organs as a novel concept in neurosurgical training.

Background: The aim of neurosurgical cadaver training for residents and fellows is not only to obtain a high level of skills, but also to keep the number of complications during the learning curve as low as possible. To move this process forward, we have worked out a novel method in further training.

Methods: Tumours can be modelled from the autolog organs.

Straight needle with fingertip support technique reduces exclusion time during bypass (in vitro, in vivo animal study): a technical note.

Background: The duration of exclusion time of recipient artery is an important factor in bypass surgery of cerebral revascularization. The longest period of exclusion is the suturing time. The fingertip support technique (first published in 2006) reduced the physiological tremor to speed up this extra-precise microsurgical procedure.

The importance of very early decompressive craniectomy as a prevention to avoid the sudden increase of intracranial pressure in children with severe traumatic brain swelling (retrospective case series).

Purpose: The purpose of the retrospective case series of eight consecutive patients is to call our attention to the optimal timing of decompressive craniectomy (DC) in children.

Method: We report the outcomes of eight children under the age of 12 with severe head injuries. DC was performed at different intracranial pressure (ICP; 20 and 25 mmHg) levels.

In vitro and in vivo surgical and MRI evidence to clarify the effectiveness of the vascular tunnel technique in the course of decompressive craniectomy.

Objective: To demonstrate the efficacy of a vascular protection technique during decompressive craniectomy (DC) which can reduce the risk of secondary venous infarction due to the blocking pressure for venous outflow through bridging veins.

Method: The observation was carried out In vitro (cadaver) and in vivo (surgery and magnetic resonance imaging) in order to verify the durability of the vascular tunnel.

Results: in vivo observation proved the durability of vascular tunnel even 2 months later.

Effectiveness of unilateral pallidotomy for meige syndrome confirmed by motion analysis.

Background: We report the case of a 64-year-old woman with bilateral manifestation of Meige syndrome (MS) successfully treated with left-side unilateral ventroposterolateral pallidotomy.

Methods: Symptoms were evaluated according to the Burke-Fahn-Marsden dystonia rating scale. Head tremor, blepharospasm and orofacial dyskinesia were measured with an infrared, video-based, computerized, real-time passive marker-based analyzer of motions (RTPAM).

Voice acoustic changes during bilateral subthalamic stimulation in patients with Parkinson's disease.

Objectives: The purpose of this study was to investigate the effects of bilateral subthalamic nucleus deep brain stimulation on the phonation of patients with Parkinson's disease in three drug-free conditions: (1) stimulation off, (2) with clinically optimised stimulation parameters, and (3) subthreshold overstimulation, in order to detect differences following voice analysis.

Patients And Methods: Conversational speech and sustained vowel sounds /a/, /i/, /o/, /u/ and high /i/ were recorded from 22 PD patients. Perceptual analysis, perturbation jitter, shimmer, noise-to-harmonics ratio, and nonlinear dynamic analysis (NDA) with detrended fluctuation analysis and recurrence period density entropy were measured and compared to the above conditions.

[Application of robot hand technique in the course of microneurosurgical operations].

Introduction: The aim of this study was to determine whether the new robot hand technique can help to avoid the complication in the course of high precise microneurosurgical operations.

Methods: The physical efficacy was measured by tremorometry. The comparative study of the incidence of complications measured the clinical efficacy.

Pallidal deep brain stimulation and L-dopa effect on PET motor activation in advanced Parkinson's disease.

BACKGROUND AND PURPOSE The antiakinetic effect of internal Globus pallidus deep brain stimulation (Gpi-DBS) in Parkinson's disease is not clear and not either how this effect is modulated by L-dopa. METHODS Left Gpi-DBS and/or L-dopa effect was studied with auditory paced right-handed sequential movements on (15)O-butanol positron emission tomography (PET) in five patients. Rest and for conditions during movements (DBS off/L-dopa off; DBS on/L-dopa off; DBS off/L-dopa on; DBS on/L-dopa on) were compared with statistical parametric mapping.

Early experiences with a novel (robot hand) technique in the course of microneurosurgery.

Background: The physiologic tremor may cause difficulties in microsurgery, in spite of using armrest. The new (robot hand) technique consists of the I-III finger support, which holds the instruments on Bethlehem (ANDAN BT, Budapest, Hungary) bridge above the operation area, which reduces the tremor at the end of the instruments.

Methods: Exact measurement of tremor reduction was performed.

A novel microsurgical technique reduces hand tremor in the course of lateral suboccipital approach.

Background: The physiological tremor may cause difficulties in microsurgery. The arm rest and the support of the outside hand edge on the skull reduces the tremor to 10th proportion at the end of the microsurgical instruments.

Methods: The new fingertip support technique consists of the I-III finger support, which holds the instruments, on the bridge (Bethlehem bridge) above the operation area.

[Catch fingertip support in microsurgery to reduce the tremor].

Introduction: With microsurgical operations one of the main risk factors is physiological tremor. To reduce it, microsurgeons usually fix their forearms and hands up to the fingertips IV-V. on supporting desks (armrests), and on the bone (skull) and skin being operated on.

Vascular tunnel creation to improve the efficacy of decompressive craniotomy in post-traumatic cerebral edema and ischemic stroke.

Background: Decompressive craniectomy with durotomy has been well described but remains a controversial treatment for traumatic or ischemic brain swelling. Although the technique can reduce intracranial pressure it frequently results in infarction of the brain tissue which extends through the durotomy because of compression and subsequent complications associated with decompressive craniectomy.

Methods: All patients treated with surgical decompression were comatose with Grade 3 or 4 Glasgow Coma Scores.

Vascular tunnel construction in the treatment of severe brain swelling caused by trauma and SAH. (evidence based on intra-operative blood flow measure).

Decompressive craniectomy with durotomy, is possible as a last resort therapy for severe traumatic brain swelling. Although the method successfully diminishes the ICP, partial or total vascular insufficiency occurs in the herniated part of the brain. The actual cause of the insufficiency is most likely due to the compression of the cortical veins and arteries supplying the herniated brain, caused by shearing and pressure forces between the dural edge and brain tissue.