Search

The article discusses a rare case of neurolymphomatosis affecting the cauda equina, a condition characterized by the infiltration of malignant lymphoma cells in the spinal cord. The patient presented with weakness in the limbs and facial paralysis, leading to a challenging diagnostic process involving imaging studies, lumbar puncture, and laboratory tests. The diagnosis of primary neurolymphomatosis of the cauda equina is rare and poses both diagnostic and therapeutic challenges, with treatment options including chemotherapy, radiotherapy, or a combination of both. The prognosis depends on the extent of infiltration, speed of diagnosis, age, and comorbidities of the patient. [Extracted from the article]

Aim: In this retrospective study of patients with subarachnoid haemorrhage from a ruptured aneurysm we explored associations between the initial condition at the time of patient admission (clinical and radiological) and concentration of selected metabolites in the white brain matter as measured by microdialysis. Methods: We included 15 patients after subarachnoid haemorrhage who were treated surgically or endovascularly from 2012 to 2015. A probe measuring intracranial pressure and a microdialysis catheter for monitoring of the metabolic condition of the brain tissue were introduced following treatment. The condition of patients at the time of clinical admission was evaluated according to the Hunt-Hess scale. Images were assessed for the presence of global cerebral oedema. These parameters were statistically evaluated against lactate and pyruvate concentrations and their ratio. Results: Patients with global cerebral oedema had a statistically signifi cantly lower concentration of pyruvate and a higher lactate/pyruvate ratio within the fi rst 24 hours of monitoring. Patients with at least one episode of metabolic crisis (glucose < 0.7 mmol/l and lactate/pyruvate ratio > 40) showed statistically signifi cantly higher value of lactate/pyruvate ratio during the fi rst 24 hours. Furthermore, a statistically signifi cant association was confi rmed between severity of a patient's baseline condition (Hunt-Hess 4) and concentration of lactate and lactate/pyruvate ratio within the fi rst 24 hours of monitoring. A statistically signifi cant association was also found between at least one episode of metabolic crisis during the entire monitoring and poorer clinical outcome 1 month after subarachnoid haemorrhage due to ruptured intracranial aneurysm (modifi ed Rankin score 4-6). [ABSTRACT FROM AUTHOR]

Copyright of Česká a Slovenská Neurologie a Neurochirurgie is the property of Czech Medical Association of JE Purkyne and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: To provide an analysis of patients with spontaneous skull base meningoencephaloceles (MECs) to determine whether definitive surgical treatment requires management of elevated intracranial pressure (ICP)., Methods: Data of 10 subjects with spontaneous MECs were collected and retrospectively evaluated. Measurement of ICP, prior interventions, treatment with acetazolamide, and characteristics of long-term elevated ICP, among others, were analyzed. Our own indications for cerebrospinal fluid (CSF) diversion and use of postoperative external lumbar drain were analyzed as well., Results: The sphenoid region was the most common location of MECs. CSF leak was diagnosed in all subjects. The most common graphical signs of elevated ICP were empty sella and arachnoid pits, both of which were present in 90% of cases. Lumbar puncture with opening pressure measurement was performed in 7 patients. Ventriculoperitoneal shunt insertion was indicated in 4 cases before skull base repair and in 2 cases after skull base repair. Two postoperative CSF leaks were managed with external lumbar drain and subsequent shunt installation., Conclusions: Spontaneous MECs are often associated with CSF leak. ICP assessment should be a standard of care to ensure successful operative repair of MECs. Insertion of a CSF diversion device must be considered where direct or indirect signs of intracranial hypertension are present., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Traumatic intracranial pseudoaneurysms (tIPAs) are a very rare pathology caused by blunt or penetrating head trauma. Diagnostic and therapeutic challenges of tIPAs are due to their unpredictable onset during the initial injury, or in a delayed manner, their unclear traumatic mechanism. Moreover, the presence of subarachnoid, subdural, or intraventricular hematoma may often cause them to be overlooked, which can potentially be followed by lethal rebleeding. Treatment of these lesions is controversial and on a case-by-case basis with regard to endovascular therapy or open surgery. We report two cases of three tIPAs of the distal anterior cerebral artery (dACA) with immediate and delayed onset after the trauma. Endovascular therapy resulted in complete obliteration of lesions with flow preservation in the parent artery using the flow diverter-assisted coiling strategy. The aim of this manuscript is to discuss the mechanism, angioanatomical characteristics, and current treatment options for these exceptional lesions.

Chiasmal compression is a known cause of visual impairment, often leading to surgical decompression of the optic chiasm (OC). A prospective study was held at University Hospital in Hradec Králové to explore sensitivity of optical coherence tomography (OCT) and visual evoked potentials (VEPs) to OC compression and eventual changes after a decompression. 16 patients with OC compression, caused by different sellar pathologies, were included. The main inclusion criterion was the indication for decompressive surgery. Visual acuity (VA), visual field (VF), retinal nerve fibre layer (RNFL) and ganglion cell layer (GCL) thickness, and peak time and amplitude of pattern-reversal (P-VEPs) and motion-onset VEPs (M-VEPs) were measured pre- and postoperatively. The degree of OC compression was determined on preoperative magnetic resonance imaging. For M-VEPs, there was a significant postoperative shortening of the peak time (N160) (p < 0.05). P100 peak time and its amplitude did not change significantly. The M-VEPs N160 amplitude showed a close relationship to the VF improvement. Thinner preoperative RNFL does not present a statistically important limiting factor for better functional outcomes. The morphological status of the sellar region should be taken into consideration when one evaluates the chiasmal syndrome. M-VEPs enable detection of functional changes in the visual pathway better than P-VEPs., (© 2022. The Author(s).)

Aim: To compare microsurgical technique (mTSS) and endoscopic technique (eTSS) in the treatment of non-functioning pituitary adenomas (NFPAs)., Methods: We retrospectively evaluated the charts of 50 patients who underwent either mTSS or eTSS for NFPA in the Department of Neurosurgery, University Hospital Hradec Kralove from 2013 to 2019. We enrolled all patients who were not treated by postoperative adjuvant radiotherapy and who underwent at least two regular postoperative magnetic resonance imaging (MRI) tests. We compared the groups in terms of the extent of resection, surgery duration, blood loss, complication rate, overall clinical effect on the endocrinological and ophthalmological deficit, and postoperative growth pattern of the residual tumor mass., Results: The mTSS group had significantly shorter surgical time (75 min vs 127 min, P<0.001) and lower perioperative blood loss (156 mL vs 256 mL, P=0.027). The groups did not significantly differ in the extent of resection, overall clinical or hormonal effect, and the complication rate. The extent of resection did not correlate with tumor consistency, while the tumor growth rate did not correlate with age or Ki-67 expression., Conclusions: There was no major difference between the approaches in surgery radicality or safeness. However, eTSS remains the method of choice due to its potentially higher postoperative preservation of hormonal functions.

Purpose: Although several reports have addressed cerebrospinal fluid (CSF) rhinorrhea following dopamine agonist (DA) therapy of macroprolactinomas, further study is warranted for this relatively uncommon entity. Toward this aim, our retrospective series and review of literature further clarifies recommendations in treatment of this rare problem., Methods: We retrospectively reviewed all macroprolactinoma cases in our hospital for a 15-year period. Our systematic search of PubMed identified original articles and reviews of all macroprolactinoma cases with an associated medication-induced CSF leak., Results: Five patients with drug-induced CSF leak were identified; four of these patients received cabergoline therapy an average of 6 weeks before the onset of rhinorrhea and then underwent surgical repair of the CSF leak. Of 35 published studies included, we identified 60 patients with medication-induced CSF leak. Medical therapy included bromocriptine in 34 patients, cabergoline in 21 patients, and use of both DAs in two patients. Three cases did include complete diagnostic and treatment data. Median time from initiation of the DA treatment to occurrence of rhinorrhea was 6 weeks. For CSF rhinorrhea, 49 patients underwent surgical repair (38 by the transnasal approach) and seven patients were treated nonoperatively., Conclusion: Baseline skull base erosion in macroprolactinomas in combination with subsequent tumor shrinkage induced by DA therapy may result in spontaneous CSF rhinorrhea. Therefore, such patients should be advised about and monitored for this potential setback. Once CSF leak is diagnosed, prompt treatment must be carried out to avoid infectious complications. Transnasal surgery appears the most effective therapeutic approach.

Aim: The aim of this study was to analyse the relationship between intracranial pressure (intracranial pressure monitoring) and lactate pyruvate ratio (cerebral microdialysis) in patients with ruptured intracranial aneurysms., Methods: In a group of fifteen patients, intracranial pressure and lactate/pyruvate ratios were measured and logged in hourly intervals. The relationship between these two variables was subsequently analysed in two ways. 1) Intracranial hypertension (ICP > 20 mmHg) in the presence of energy deprivation (L/P ratio > 30) was noted. 2) The dynamics of L/P ratio changes in relation to immediate ICP and CPP values was analysed., Results: Out of a total of 1873 monitored hours we were able to record lactate/pyruvate ratios higher than 30 in 832 hours (44 %). Of those 832 hours during which lactate/pyruvate ratios were higher than 30, ICP was higher than 20 in 193 hours (23 %). Out of 219 hours of monitoring, in which ICP was higher than 20, a simultaneously increased L/P ratio higher than 30 was recorded in 193 hours (88 %). L/P ratio values above 30 were associated with decreased CPP values (p = 0.04), but not with increased ICP values (p = 0.79)., Conclusion: Intracranial hypertension coincides with energetic imbalance in approximately one quarter of cases. This points to the shortcomings of the most common form of neuromonitoring in SAH patients - ICP monitoring. This method may not be reliable enough in detecting hypoxic damage, which is the major cause of morbidity and mortality in SAH patients (Fig. 5, Ref. 11).

Objective: The study aimed to provide a description of a new and a hopeful possibility in the treatment of severe vulvodynia, which does not respond to treatments used so far., Materials and Methods: The use of radiofrequency therapy in vulvodynia treatment is described for the first time. This method was suggested by a neurosurgeon after applying all available possibilities., Result: In this article, we are reporting on the successful use of the pulsed radiofrequency treatment in a patient with intractable chronic vulvodynia., Conclusions: To our knowledge, this is the first report of a successful use of pulsed radiofrequency in the treatment of chronic vulvodynia. If efficacy of pulsed radiofrequency is confirmed by more studies, it would be a welcome addition to the treatment modalities used to treat this sometimes truly intractable condition.

Compression of suprascapular nerve at the suprascapular notch or spinoglenoid notch can be a cause of a rare mononeuropathy. Patients complain of pain in scapula and shoulder, and selective wasting and weakness of the supraspinatus and infraspinatus muscles. Tenderness at the suprascapular notch and pain by forced abduction of arm are typical and useful signs. Electromyographic signs of various grade denervation are regularly found in both muscles. Development of entrapment syndromes is associated with chronic overload, shoulder injuries, with surgical procedures, or with shoulder-arm fixation. The authors present their own group of 10 patients, who were operated on for entrapment syndrome of suprascapular nerve during 7 year period. Direct or indirect traumatic mechanisms of development of nerve compression were disclosed in most patients. During postoperative period there was not only substantial decrease of pain, but also regression of weakness and wasting of both muscles. In discussion, necessity of differential diagnostic procedures in case of pain and muscle wasting, use of appropriate imaging techniques, demand of purposeful EMG examination, and postoperative follow-ups are emphasized.

Endoscopic carpal tunnel syndrome surgery is a modern minimally invasive method of carpal tunnel decompression. However, the method does also have its critics, who emphasize that there is an increased rate of complications in comparison to open procedures. To further improve and optimize results of endoscopic surgery we used an intracarpal pressure sensor to verify the effect of carpal tunnel decompression. The endoscopic single portal approach was used in all cases. Median nerve conduction studies were performed prior to and 3 months after surgery. Two groups, those with pressure studies and those without, were then compared according to several EMG parameters such as: median nerve distal motor latency, amplitude of motor response, sensory nerve conduction velocity to the index finger, and amplitude of sensory nerve action potential. In both groups, we observed similarly significant improvements in all conduction parameters, except the amplitude of motor response, which did not change in either group, i.e. no difference in postoperative EMG between the two groups was observed. Despite this fact, intracarpal pressure measurement is still useful in localising the point in which the median nerve is compressed and provides valuable functional information on the level decompression achieved.

The usefulness of carpal tunnel pressures measurement during surgery of carpal tunnel syndrome is documented by the authors. 31 patients underwent endoscopic uniportal approach, the pressure in different positions (neutral position, flexion and extension in wrist, grip of the fingers) and in different levels (distal forearm, proximal, central and distal part of carpal tunnel, palm) was measured. The significant drop of pressure was observed after dissection of ligament in all levels. The results are presented in the form of several graphs.

Ethiopathogenesis, diagnostic and treatment of spinal haemangioma remains suggestive topic not only for surgeons. The development of diagnostic imaging methods allows more precise evaluation of the pathology and optimal therapeutic planning. We have many therapeutic modalities: selective embolisation, radiotherapy, vertebroplasty, alcohol ablation and surgery. It depends on radiologic findings and clinical status which of them is used. The treatment of emergent compression is still the domain of surgeon. In the therapy of haemangiomas causing local pain, we prefer less invasive procedures. The interdisciplinary cooperation is required for the successful treatment.

A significance of carpal tunnel pressure measurement during surgery of carpal tunnel syndrome (endoscopic and twin incision technique) was evaluated. The pressure in different levels of palm and in different positions of the hand was measured by ICP sensor Codman during operation of 10 patient. The results are presented in the form of several graphs. In all 10 cases excellent results were obtained.

In our set of 19 operated patients with spinal myeloma it was in 17 patients (89%) the first manifestation of malignant haematological disease. Indication for admission for surgery were in 18 patients (92%) graphical signs of spinal compression of osteolytic affliction of the vertebra of unclear aetiology, which in 17 (63%) of patients were demonstrated by neurological deficit. On the basis of graphical examinations the most frequent suspicion was on metastatic affliction of the spine at unknown primary focus and the basic diagnosis was determined after the operation at most of cases. In decision about the choice of radicalness of surgery intervention important data about the type of tumour in the spine were usually missing and it especially did not make possible to estimate the life expectation of the patient. When deciding about the radicalness of the surgery, we started from the degree of spinal compression and surgical character of pathological process in the spine. The aim of the operation is to decompress the spinal cord in tumour and to stabilize the afflicted part of the spine. Radical extirpation of tumour followed with stabilization and spine reconstruction we decided to carry out in 7 patients, i.e. 37%, all of them clinically improved and from this group only 2 patients (29%) died till now. We carried out only palliative surgery on the spine in next 12 patients, i.e. in 63%, only 6 patients improved neurologically, i.e. 50% and 10 patients, i.e. 83% died till now.

The authors investigated stroke morbidity (incidence, prevalence) and mortality, established register, and analyzed the epidemiological situation of this disease in the Martin district. Precondition for this study has been in 35 years neurological following the stroke patients at four neurological out-patients departments of the district and their hospitalization at the Neurological Clinic in Martin. During the period from 1983-1986 559 patients with an average age of 64.1 +/- 12.8 years (the range being 4-97 years) were treated at the above institutions. During four years of the study the average incidence of the stroke was 108/100.000/year. The mortality of the group 45/100.000/year is, as compared with world-wide statistics, low and is due to the care devoted to stroke patients for many years. The calculated, so-called expected prevalence, is 920 +/- 147/100.000 and can be explained by the relatively low mortality. In the Turiec region there are some 1012 +/- 162 stroke patients. This number was obtained by calculation for the number of inhabitants of the Martin District.