Clinical Neuroscience

[The impact of levodopa-carbidopa intestinal gel on health-related quality of life in Parkinson’s disease]

KOVÁCS Norbert, ASCHERMANN Zsuzsanna, ÁCS Péter, BOSNYÁK Edit, DELI Gabriella, JANSZKY József, KOMOLY Sámuel

JULY 30, 2014

Clinical Neuroscience - 2014;67(07-08)

[Background - The levodopa/carbidopa intestinal gel (LCIG) therapy can improve the severe fluctuations associated with advanced Parkinson’s disease (PD). Our aim was to assess the improvement in the health related quality of life of PD patients treated with LCIG at University of Pécs. Methods - Eight PD patients were evaluated (age: 68.1±4.4 years, disease duration: 14,5±6,2 years, duration of fluctuations: 8.9±3.1 years). Before the initiation of LCIG treatment and 6 and 12 months later, the health-related quality of life (PDQ-39 and EQ-5D-5L), severity of PDrelated symptoms (MDS-UPDRS, Hoehn-Yahr Scale, Clinical Global Improvement - Severity) and major non-motor symptoms (PD Sleep Scale 2nd version: PDSS-2, Epworth Scale and Beck Depression Inventory: BDI) were assessed. Results - Health-related quality life improved after LCIG treatment measured by both EQ-5D-5L (from 0.257 to 0.662, p=0.009) and PDQ-39 (from 34 to 26 points, p=0.038). Meanwhile PD-related symptoms (MDS-UPDRS total score: from 105 points to 68 points, p<0.05) sleep quality (PDSS-2: from 25 to 22 points, p<0.05), daytime sleepiness (Epworth: from 12 to 7 points, p<0.05) and depression (BDI: from 20 to 15 points, p<0.05) also improved. Median ON time improved form 4.5 hours to 10.0 hours; whereas, the OFF time decreased from 4.5 to 0.5 hours (p<0.05). Conclusion - Both the quality of life and the clinical features of PD can be improved by LCIG treatment in advanced PD.]

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Clinical Neuroscience

[Magda Neuwirth MD the top personality of Hungarian pediatric epileptology is departed on Mother’s Day of 2014]

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Clinical Neuroscience

[Single dose irradiation of defined region of rat brain with stereotactic BrainLab system]

FARKAS Róbert, KALINCSÁK Judit, KOVÁCS Péter, ARADI Mihály, BELLYEI Szabolcs, WEICZNER Roland, SEBESTYÉN Zsolt, PLANGÁR Imola, HIDEGHÉTY Katalin

[Background and purpose of our study was to develop a precise dose delivery technique for partial brain irradiation of two rats simultaneously. Methods - Using a self-developed frame stereotactic radiotherapy with single doses of 30-90 Gy was delivered to the frontal lobe of 22 animals. Tolerability and reproducibility of the method were evaluated and dosimetric measurements were conducted to verify the treatment plans. 2, 4 and 6 months after the irradiation magnetic resonance imaging (MRI) scans and histopathological examinations were performed to detect late radiation induced biological changes. Results - Immobilization device provided excellent reproducibility and tolerability. Dosimetry revealed good corres - pondence with planned dose distribution, but the measured absorbed dose was 30% lower than the planned dose. During the 6 months follow-up period the procedure related death of subject animals after 30 Gy, 70 Gy and 90 Gy were 0%, 20% and 100% respectively. T2 signal and structural changes on MRI scans found to be dose and time dependent. While 30 Gy caused no detectable structural changes, 70 Gy lead to cystic necrosis in 2 cases after 4 month. Histopathology revealed signs of necrosis on macroscopic examination after 70 Gy in the high dose region involving both frontal lobes, and no obvious microscopic changes in the surrounding area were detectable. Conclusion - Our technique of rat cranial irradiation using human stereotactic system provided high accuracy of single dose delivery for a pair of small animals, resulting in brain injury in the defined area. This method proved to be a reproducible model for preclinical studies on radiation effects.]

Clinical Neuroscience

[Anti glutamate-decarboxylase antibodies: a liaison between localisation related epilepsy, stiff-person syndrome and type-1 diabetes mellitus]

SZŰCS Anna, BARCS Gábor, WINKLER Gábor, SOÓS Zsuzsanna, FOLYOVICH András, KELEMEN Anna, VÁRALLYAY Péter, KAMONDI Anita

[We present two patients with partial epilepsy, type-1 diabetes and stiff person syndrome associated with high serum autoantibody levels to glutamate-decarboxylase (anti-GAD). Both patients were or have suffered from additional autoimmune conditions. The presence of stiff person syndrome and elevated anti- GAD levels have to make clinicians look for additional autoimmune conditions including type-1 diabetes. On the other hand, the co-morbidity of partial epilepsy with autoimmune conditions in patients with elevated serum anti-GAD suggests an autoimmune mechanism of partial epilepsy in these cases.]

Clinical Neuroscience

[Long-term safety and effectiveness of natalizumab redosing and treatment in the STRATA MS Study]

CSÉPÁNY Tünde

Clinical Neuroscience

[Natalizumab therapy, 2013]

KARÁCSONY Mária, BENCSIK Krisztina, VÉCSEI László

[Multiple sclerosis (MS) is the most common chronic disease of the central nervous system in young adults. No curative therapy is known. Currently, six drugs are available that can reduce the activity of MS. The first-line drugs can completely reduce the activity of the disease in nearly two-thirds of the patients. In the remainder, who suffer from breakthrough disease, the condition of the patient worsens, and secondline therapies must be used. The second-line drug natalizumab exhibits almost double efficacy of the first-line drugs, but also have less favourable adverse effects. As a severe side-effect for instance, natalizumab carries the risk of the development of progressive multifocal leucoencephalopathy (PML), caused by a polyoma virus, the JC virus. There are three major risk factors for PML: an anti-JCV antibody status, a long duration of natalizumab treatment and prior immunosuppressant therapy. The lowest-risk group (1:14 286) comprises of patients who are anti-JCV antibody-negative, in whom the prior immunosuppressant use and duration of natalizumab therapy do not influence the risk of PML. With no prior immunosuppressant treatment, the incidence of PML increases to 1 in 192 patients after 2 years among those who are anti-JCV antibody-positive. These data may lead the physician to decide to discontinue natalizumab treatment. The half-life of natalizumab is three months; during this time other therapies can not be administered and the patients encounter the rebound effect: as the patients receiving natalizumab therapy displayed a high disease activity before treatment, the rebound effect can lead to relapses. After the termination of natalizumab secondline disease-modifying therapy with fingolimod may be introduce; no PML cases occur in response to fingolimod treatment. In the large majority of patients taking natalizumab who do not develop PML, this drug is highly effective and can prevent the progression of MS. The benefit of therapy and the risk of PML must be considered on an individual basis, with regard to the disease activity, the progression and the MRI activity, before natalizumab therapy is implemented.]

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Vestibular evoked myogenic potential responses in Parkinson’s disease

CICEKLI Esen, TITIZ Pinar Ayse, TITIZ Ali, OZTEKIN Nese, MUJDECI Banu

Background - Our objectives were to determine the differences in the vestibular evoked myogenic potential (VEMP) responses in patients diagnosed with early staged idiopathic Parkinson’s disease (PD) compared to the normal population and evaluate the vestibular system disorder causing balance-posture disorders. Second aim of this study was to investigate caloric test responses particularly in early staged PD compared to normal popu­lation. Material and methods - Thirty patients (14 females and 16 males; mean age, 60.6 ± 13.1 years) diagnosed with idiopathic PD and 28 healthy subjects (20 males and 8 females; mean age, 59.1 ± 6.4 years) were included. The patient and control groups were subdivided according to their age, gender and the patient group was subdivided according to onset time of the Parkinson symptoms, Hoehn-Yahr staging. The subgroups were compared for VEMP and caloric test responses. Results - There were no significant differences between the study and control groups for right and left VEMP measurements. Patients over 60 years and under 60 years did not show significant differences in terms of right and left mean VEMP measurements. However, P1 amplitude was significantly lower in patients over 60 years old (P = .004). Gender, disease duration, BERG balance scale and Hoehn-Yahr stage had no effect on the VEMP amplitudes. There was no significant correlation with the side of Parkinsonian symptoms to the side of canal paresis (P = .566) and the side on which no VEMP response was obtained in caloric test. Conclusion - VEMP responses were not different between PD and healthy subjects. VEMP P1 amplitude was decreased with age in PD group. Canal paresis and symptoms side were not statistically correlated in caloric test.

Clinical Neuroscience

[Earlier and more efficiently: the role of deep brain stimulation for parkinson’s disease preserving the working capabilities]

DELI Gabriella, BALÁS István, KOMOLY Sámuel, DÓCZI Tamás, JANSZKY József, ASCHERMANN Zsuzsanna, NAGY Ferenc, BOSNYÁK Edit, KOVÁCS Norbert

[Background – The recently published “EarlyStim” study demonstrated that deep brain stimulation (DBS) for the treatment of Parkinson’s disease (PD) with early fluctuations is superior to the optimal pharmacological treatment in improving the quality of life and motor symptoms, and preserving sociocultural position. Our retrospective investigation aimed to evaluate if DBS therapy was able to preserve the working capabilities of our patients. Methods – We reviewed the data of 39 young (<60 years-old) PD patients who underwent subthalamic DBS implantation at University of Pécs and had at least two years follow-up. Patients were categorized into two groups based on their working capabilities: Patients with active job (“Job+” group, n=15) and retired patients (without active job, “Job-” group, n=24). Severity of motor symptoms (UPDRS part 3), quality of life (EQ-5D) and presence of active job were evaluated one and two years after the operation. Results – As far as the severity of motor symptoms were concerned, similar (approximately 50%) improvement was achieved in both groups. However, the postoperative quality of life was significantly better in the Job+ group. Majority (12/15, 80%) of Job+ group members were able to preserve their job two years after the operation. However, only a minimal portion (1/24, 4.2%) of the Job- group members was able to return to the world of active employees (p<0.01, McNemar test). Conclusion – Although our retrospective study has several limitations, our results fit well with the conclusions of “EarlyStim” study. Both of them suggest that with optimal timing of DBS implantation we may preserve the working capabilities of our patients.]

Clinical Neuroscience

[UPDATES IN PRACTICAL NEUROLOGY - I. THE PRINCIPLES OF MODERN LEVODOPA THERAPY IN PARKINSON’S DISEASE]

KLIVÉNYI Péter, VÉCSEI László

[Despite the levodopa is used for the treatment of Parkinson’s disease for a long time, recently many questions raised about its clinical use. New issues emerged based on the clinical trials, on latest neuroimaging data and on better understanding the pathomechanism of motor complications. These observations have changed the routine clinical use of levodopa. In this review we summarize the evidences and practical implications of levodopa therapy.]

Clinical Neuroscience

Quality of life of patients with non-diabetic peripheral neuropathic pain; results from a cross-sectional survey in general practices in Hungary

BRODSZKY Valentin, PÉNTEK Márta, KOMOLY Sámuel, BERECZKI Dániel, EMBEY-ISZTIN Dezső, TORZSA Péter, GULÁCSI László

Background and purpose - There is a lack of data on the impact on health related quality of life of peripheral neuropathic pain in Hungary. The main aims of the study were to assess the health related quality of life of nondiabetic PeNP patients identified in general practices through screening, and to assess the relationship between condition specific pain scores and health state utilities. Methods - Non-diabetic patients aged ≥30 years were recruited in 10 general practices in Hungary. At first, patients filled in the PainDETECT Questionnaire (PD-Q) and those who have achieved ≥13 PD-Q score (unclear or possible neuropathic pain) were further assessed by the DN4 questionnaire. Patients with PD-Q score >18 or DN4 score ≥4 were considered to have PeNP and they completed the EQ-5D health questionnaire. Results - Among the 111 patients identified as non-diabetic PeNP patients the mean age was 62 (SD=14) years, 69% were women. Average EQ-5D score was 44% lower than the gender and age matched Hungarian norm (0.42 vs. 0.75, p<0.001) and it worsened with increasing pain intensity. The pain/discomfort and anxiety/depression were the most affected EQ-5D dimensions. Strong relationship was demonstrated between the PD-Q and EQ- 5D score. Most of the PeNP patients (86%) were undiagnosed. Conclusions - Non-diabetic PeNP pain has a huge negative impact on health related quality of life. Although PeNP is a serious chronic condition, the disease burden is seriously underestimated, both on the level of individuals and society, due to the fact that patients are rarely identified.

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[Effect of zoledronic acid treatment on pain and quality of life in patients with metastatic bone disease suffering from breast and prostate cancer - Multicenter, prospective, observational study]

PÁPAI Zsuzsanna, LANDHERR László, SPEER Gábor

[INTRODUCTION - Metastatic bone disease is frequently associated with breast and prostate cancer. Bisphosphonate treatment of bone metastases is palliative: its primary goal is to relieve pain, while it's also important to decrease the risk of bone fractures, prolong survival and maintain physical activity of the patients. Pain is the most common symptom of bone metastases. PATIENTS AND METHODS - In total 845 patients were enrolled in our open, multicenter, prospective, observational study, the first of its kind in Hungary. The agent tested was zoledronic acid (Zometa®). Duration of the study was 20 months and its primary goal was to assess the correlation between pain and quality of life during the treatment of patients with bone metastases from breast or prostate carcinoma. RESULTS - During the 18 months of the study, the average intensity of pain, measured on the visual analog scale showed a 42% reduction (p<0.0001). By the end of the 18. month, the ratio of patients free of symptoms has increased by 15% and the number of patients with substantial complaints has decreased by 73%. CONCLUSION - Our study supports the observation published in the international literature that in patients with bone metastases from breast and prostate cancer, zoledronic acid treatment is beneficial for reducing pain and thus for improving quality of life.]