Clinical Neuroscience

[Thrombolysis in case of ischemic stroke caused by aortic dissection]

LANTOS Judit, NAGY Albert, HEGEDŰS Zoltán, BIHARI Katalin

JANUARY 20, 2017

Clinical Neuroscience - 2017;70(01-02)


[Seldom, an acute aortic dissection can be the etiology of an acute ischemic stroke. The aortic dissection typically presents with severe chest pain, but in pain-free dissection, which ranges between 5-15% of the case, the neurological symptoms can obscure the sypmtos of the dissection. By the statistical data, there are 15-20 similar cases in Hungary in a year. In this study we present the case history of an acute ischemic stroke caused by aortic dissection, which is the first hungarian publication in this topic. A 59-year-old man was addmitted with right-gaze-deviation, acute left-sided weakness, left central facial palsy and dysarthric speech. An acute right side ischemic stroke was diagnosed by physical examination without syptoms of acute aortic dissection. Because, according to the protocol it was not contraindicated, a systemic intravenous thrombolysis was performed. The neurological sypmtoms disappeared and there were no complication or hypodensity on the brain computed tomography (CT). 36 hours after the thrombolysis, the patient become restlessness and hypoxic with back pain, without neurological abnormality. A chest CT was performed because of the suspition of the aortic dissection, and a Stanford-A type dissection was verified. After the acute aortic arch reconstruction the patient died, but there was no bleeding complication at the dissection site caused by the thrombolysis. This case report draws attention to the fact that aortic dissection can cause acute ischemic stroke. Although it is difficult to prove it retrospectively, we think the aortic dissection, without causing any symptoms or complain, had already been present before the stroke. In our opinion both the history of our patient and literature reviews confirms that in acute stroke the thrombolysis had no complication effect on the aortic dissection but ceased the neurological symptoms. If the dissection had been diagnosed before the thrombolysis, the aortic arch reconstruction would have been the first step of the treatment, without thrombolysis. ]



Further articles in this publication

Clinical Neuroscience

Symptom profiles and parental bonding in homicidal versus non-violent male schizophrenia patients

HALMAI Tamás, TÉNYI Tamás, GONDA Xénia

Objective - To compare the intensity and the profile of psychotic symptoms and the characteristics of parental bonding of male schizophrenia patients with a history of homicide and those without a history of violent behaviour. Clinical question - We hypothesized more intense psychotic symptoms, especially positive symptoms as signs of a more severe psychopathology in the background of homicidal behaviour. We also hypothesized a more negatively perceived pattern (less Care more Overprotection) of parental bonding in the case of homicidal schizophrenia patients than in non-violent patients and non-violent healthy controls. Method and subjects - Symptom severity and symptom profiles were assessed with the Positive and Negative Syndrome Scale in a group of male schizophrenia patients (n=22) with the history of committed or attempted homicide, and another group (n=19) of male schizophrenia patients without a history of violent behaviour. Care- and Overprotection were assessed using the Parental Bonding Instrument (PBI) in a third group of non-violent healthy controls (n=20), too. Results - Positive, negative and general psychopathology symptoms in the homicidal schizophrenia group were significantly (p<0.005) more severe than in the non-violent schizophrenia group. Non-violent schizophrenia patients scored lower on Care and higher on Overprotection than violent patients and healthy controls. Homicidal schizophrenia patients showed a pattern similar to the one in the healthy control group. Conclusions - It seems imperative to register intense positive psychotic symptoms as predictive markers for later violent behaviour. In the subgroup of male homicidal schizophrenia patients negatively experienced parental bonding does not appear to be major contributing factor to later homicidal behaviour.

Clinical Neuroscience

[Magnetic resonance imaging in the course of alemtuzumab and teriflunomide therapy]

MIKE Andrea, KINCSES Zsigmond Tamás, VÉCSEI László

[Our work aimed to review the published results of magnetic resonance imaging (MRI) obtained in the course of alemtuzumab and teriflunomide therapy in multiplex sclerosis. In multiplex sclerosis MRI sensitively detects subclinical pathological processes, which do not manifest clinically in the early course of the disease, however have substantial significance from the viewpoint of the long-term disease prognosis. MRI has an increasingly important role in the early monitoring of the therapeutic efficacy. In the last 15 years several clinical trials have been conducted with alemtuzumab and teriflunomide in multiple sclerosis providing evidence about the favourable clinical effect of these drugs. MRI images were acquired in these trials as well, and the results published recently in the scientific literature. These MRI results denote the suppression of the disease activity and the neurodegenerative processes, which may imply a favourable effect on the long-term prognosis of the disease. ]

Clinical Neuroscience

The evaluation of the relationship between risk factors and prognosis in intracerebral hemorrhage patients

SONGUL Senadim, MURAT Cabalar, VILDAN Yayla, ANIL Bulut

Objective - Patients were assessed in terms of risk factors, hematoma size and localization, the effects of spontaneous intracerebral hemorrhage (ICH) on mortality and morbidity, and post-stroke depression. Materials and methods - The present study evaluated the demographic data, risk factors, and neurological examinations of 216 ICH patients. The diagnosis, volume, localization, and ventricular extension of the hematomas were determined using computed tomography scans. The mortality rate through the first 30 days was evaluated using ICH score and ICH grading scale. The Modified Rankin Scale (mRS) was used to determine the dependency status and functional recovery of each patient, and the Hamilton Depression Rating Scale was administered to assess the psychosocial status of each patient. Results - The mean age of the patients was 65.3±14.5 years. The most common locations of the ICH lesions were as follows: lobar (28.3%), thalamus (26.4%), basal ganglia (24.0%), cerebellum (13.9%), and brainstem (7.4%). The average hematoma volume was 15.8±23.8 cm3; a ventricular extension of the hemorrhage developed in 34.4% of the patients, a midline shift in 28.7%, and perihematomal edema, as the most frequently occurring complication, in 27.8%. Over the 6-month follow-up period, 57.9% of patients showed a poor prognosis (mRS: ≥3), while 42.1% showed a good prognosis (mRS: <3). The mortality rate over the first 30 days was significantly higher in patients with a low Glasgow Coma Scale (GCS) score at admission, a large hematoma volume, and ventricular extension of the hemorrhage (p=0.0001). In the poor prognosis group, the presence of moderate depression (39.13%) was significantly higher than in the good prognosis group (p=0.0001). Conclusion - Determination and evaluation of the factors that could influence the prognosis and mortality of patients with ICH is crucial for the achievement of more effective patient management and improved quality of life.

Clinical Neuroscience

Combination of severe facial and cervical vascular malformation with obstructive sleep apnea syndrome: diagnostic and therapeutic approaches

FALUDI Béla, IMRE Marianna, BÜKI András, KOMOLY Sámuel, LUJBER László

The combination of obstructive sleep apnea syndrome and vascular malformation within the head and neck region is a rare condition, and interestingly, only a few cases have recently been published. Propagation of the vascular mass to the larynx and pharynx can cause breathing and swallowing difficulties. Due to these sypmtoms, examination and initiation of appropriate therapy for such patients are indeed challenging. We reviewed the literature available and present our case of a 64 year old woman emphasizing the complaints of sleep apnea syndrome and vascular malformation of the face and neck region. Polygraphic examination detected severe obstructive sleep apnea syndrome. The MR examination of the neck revealed extensive vascular mass narrowing the pharyngo-laryngeal region, thereby causing temporal bone destruction on the right side with intracranial propagation. ENT examination demonstrated significant narrowing of the pharyngeal lumen and the laryngeal aditus caused by multiple hemangiomas. CPAP titration showed the minimalization of the apnea-hypopnea index on the effective pressure level. Regular CPAP usage resulted in diminishing a majority of the patient’s complaints. Our examination clearly demonstrates, obstructive sleep apnea syndrome coupled with significantly obstructing vascular malformation in the head and neck region can be effectively treated safely with a CPAP device, if surgical therapy is not possible. We summarized our findings and the data available in the literature to set up recommendations for the appropriate examination and therapy (including mask fit, etc.) of vascular malformations and hemangiomas causing pharyngo-laryngeal obstruction.

Clinical Neuroscience

The timing of weaning alters the vulnerability to stress-induced gastric erosion in adult rats

LUDMILA Filaretova, LUDMILA Vataeva, ZELENA Dóra

Background - Weaning is an important period of life and its timing may influence the resilence for later stress. One of the most important stress-related disorder is gastric ulceration. Purpose and methods - Therefore we aimed to investigate the sensitivity of gastric mucosa to cold (at 16°C) water immersion stress (WIS for 3h) in adult (75-day-old) female and male rats after weaning them at different timepoints (at 17, 21, 30, 36 or 42 postnatal days). The connection with stress was studied by comparing control groups to those underwent WIS at the time of weaning and measuring corticosterone levels at the time of collecting the stomach samples. Results - The timing of weaning has strong impact on all studied parameters. Stress-induced erosion development was the smallest in rats weaned at 36-day independently from preconditioning with WIS at weaning, or sex, despite a clear sex-effect on blood corticosterone levels and body weight. WIS at weaning influenced only the body weight in adult rats weaned at 30-day, being higher in stressed than in control groups. There was no clear overall correlation between erosion area and blood corticosterone measures. Conclusions - Taken together our results confirm that the timing of weaning has long-lasting impact on the resiliance of gastric mucosa to ulcerogenic stressful events. In rats the postnatal day 30-36 seems to be optimal for weaning in both sexes as both earlier and later weaning increased vulnerability. Females seems to be more vulnerable to the effect of weaning than males.

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Clinical Neuroscience

The applications of transcranial Doppler in ischemic stroke


Background: This overview provides a summary of the applications of transcranial Doppler (TCD) in ischemic stroke. Results: A fast-track neurovascular ultrasound protocol has been developed for detecting occlusion or stenosis. The technique is more reliable in the carotid area than in the posterior circulation. By monitoring the pulsatility index the in­crea­sed intracranial pressure can be diagnosed. TIBI score was developed for grading residual flow. TCD has been shown to accurately predict complete or any recanalization. Regarding recanalization, TCD has a sensitivity of 92%, a specificity of 88%, a positive predictive value of 96%, a negative predictive value of 78% and an overall accuracy of 91%, respectively. Sonothrombolysis seemed to be a promising application but randomized controlled trials have shown that it does not improve clinical outcome. TCD examination can detect microembolic signals (MES) which are associated with an increased risk of stroke. Micro­em­boli were detected in symptomatic and asymptomatic carotid artery stenosis and during carotid endarterectomy. The number of microemboli can be decreased by antithrombotic therapy. Contrast en­chan­ced examination and Valsalva maneuver with continuous TCD monitoring can accurately screen for right-to-left shunt.

Clinical Neuroscience

[Relationships between COVID-19 disease, nutritional status, and dysphagia, particularly in stroke patients ]

KOVÁCS Andrea, SZABÓ Pál Tamás, FOLYOVICH András

[The new coronavirus, SARS-CoV-2, which causes the COVID-19 disease can lead to severe acute respiratory distress syndrome (ARDS). It poses a serious challenge to the health care system, especially intensive care. Neurological patients, usually of advanced age and with a myriad of comorbidities, are at particular risk through the impact of the new coronavirus on their condition and nutritional capacity. Stroke is a leader in morbidity and mortality data, with a focus on dysphagia and its complications due to COVID-19 disease and acute cerebrovascular accident. In the acute phase of stroke, 30-50% of patients suffer from dysphagia, which still shows a prevalence of 10% six months later. Dysphagia results in decreased or insufficient fluid and nutrient uptake, supp­lemented by inactivity, leading to malnutrition and sarcopenia, which worsens overall condition, outcome, and rehabilitation efficiency. Screening and early detection of swallowing disorders is a fundamental issue in order to develop a personalized and timely-initiated nutritional therapy strategy. Nutritional therapy plays a key role in frequent intensive care due to COVID-19 disease, where it increases the chances of recovery and reduces the length of stay in the intensive care unit and mortality. This is especially true in critically ill patients requiring prolonged ventilation. In COVID-19 diagnosed patients, screening for dysphagia, bedside assessment, and instrumental examination, followed by swallowing rehabilitation, are of paramount importance. Stroke can also be a complication of the COVID-19 infection. Care for cerebrovascular patients has also adapted to the pandemic, “triazination” has become systemic, and dysphagia screening for stroke patients and nutritional therapy adapted to it have also shed new light. ]

Lege Artis Medicinae

[The history of acute stroke care in Hungary ]


[Stroke is one of the most frequent causes of death and the most important cause of permanent disability worldwide and also in Hungary. The Hungarian medical literature has mentioned this disease and has been giving recommendations for its treatment since 1690. Initially folk medicines, herbal preparations and phlebotomy were used as standard therapy. Later, cooling the head joined these methods. Pharmacy preparations emerged at the middle of the 19th century. From the middle of the 20th century, products of the pharmaceutical industry like blood flow enhancers and neuroprotective drugs were in the frontline of the acute care. Anti­hy­per­ten­sive, antithrombotic and lipid-lowering medications became part of stro­ke prevention. Imaging techniques – mainly computer tomography of the brain and ultrasound examination of the cervical large arteries – have radically changed the diagnostics of cerebrovascular diseases from the middle of the 1980s. Since the 1990s, diagnostic and therapeutic decisions are based on reliable evidence from good quality clinical trials. Since the beginning of the 21st century, reperfusion treatments (intravenous thrombolysis and mechanical thrombectomy) re­present the most effective emergency care. The current direction is the extension of the therapeutic time-window of reperfusion treatments based on sophisticated neruoimaging. This review provides a brief summary of the development of stroke care in the last three and a half centuries as reflected in the Hungarian medical literature. ]

Clinical Neuroscience

[Systemic thrombolysis and endovascular intervention in postpartum stroke]


[Introduction - There are no previously published cases about intravenously applied recombinant tissue plasminogen activator in acute ischemic stroke during puerperium. Case presentation - We report a 40-year-old woman with postpartum acute ischemic stroke caused by multiple cervical artery dissections treated by systemic thrombolysis and endovascular intervention. Discussion - There are only limited data regarding thrombolytic treatment in acute stroke during pregnancy and puerperium. Current acute stroke treatment guidelines - while considering pregnancy as a relative exclusion criterion - do not deal with the postpartum state. Conclusion - As the condition is rare, randomized controlled trials are not feasible, therefore further reports on similar cases could eventually help us suggest guidelines or at least propose recommendations for the acute thrombolytic treatment of strokes occurring in pregnancy and puerperium.]

Clinical Neuroscience

[The role of intravenous thrombolysis before mechanical thrombectomy in the treatment of large vessel occlusion strokes ]

KALMÁR Péter János, TÁRKÁNYI Gábor, KARÁDI Zsófia Nozomi, BOSNYÁK Edit, NAGY Csaba Balázs, CSÉCSEI Péter, LENZSÉR Gábor, BÜKI András, JANSZKY József, SZAPÁRY László

[The efficacy of intravenous thrombolysis (IVT) is moderate in the proximal vascular segments of intracranial arteries, as opposed to mecha­nical thrombectomy (MT). In the management of acute ischemic stroke (AIS) caused by large vessel occlusions (LVO), IVT prior to MT is highly recommended based on the latest guidelines, but the necessity of IVT has been questioned by the latest studies of the past years. The aim of our study was to investigate and compare the efficacy and safety of direct mechanical thrombectomy (dMT) and combined therapy (CT) for patients who suffered an AIS with LVO and were treated in our department. We investigated patients with AIS caused by LVO who were admitted up to 4.5 hours after symptom onset and underwent MT in our department between November 2017 and August 2019. Patients’ data were collected in our stroke register. Patients enrolled in our study were divided into two groups depending on whether dMT or CT was used. Our primary outcome was the 30- and 90- day functional outcome measured by modified Rankin Scale (mRS). Mortality at 30- and 90- day, successful recanalization rates, and symptomatic intracranial hemorrhage were considered as secondary outcomes. A total of 142 patients (age: 68.3 ± 12.6 years, 53.5% female) were enrolled in our study, including 81 (57.0%) dMT cases, and 61 (43.0%) patients who received CT. The vascular risk factors and comorbidities were significantly higher in the dMT-treated group. At day 30, the rate of favorable functional outcomes was 34.7% in dMT vs. 43.6% among those who received CT (p = 0.307), by day 90 this ratio changed to 40.8% vs. 46.3% (p = 0.542). Mortality rates at day 30 were 22.2% and 23.6% (p = 0.851), and at day 90 33.8% and 25.9% (p = 0.343). The rate of effective recanalization was 94.2% for dMT-treated patients and 98.0% for CT-treated patients (p = 0.318). Symptomatic intracranial hemorrhage was detected in 2.5% of dMT-treated patients and 3.4% of CT-treated group (p = 0.757). Our results suggest that CT is associated with a moderately better outcome compared to dMT. IVT prior to MT did not increase the risk of symptomatic intracranial hemorrhages.]