Feriha Ozer

Cognitive impairment patterns in Parkinson's disease with visual hallucinations

OBJECTIVES We investigated the role of stage of disease, motor status and dopaminergic treatment in cognitive impairment of Parkinsons disease (PD) patients with visual hallucination (VH) and the presence of specific cognitive impairment patterns. METHOD We compared 33 PD patients with VH (group 1) with 30 PD patients without VH (group 2) with regard to demographic characteristics and neuropsychological test scores. RESULTS The group with VH demonstrated significantly worse Short Test of Mental Status scores; the cognitive impairment pattern presented in the form of frontal dysfunction and memory deterioration. There were significant differences in Stroop duration/error, verbal fluency, Wechsler Memory Scale and Sozel Bellek Surecleri Test (a Turkish verbal learning test) scores. CONCLUSION In PD patients with VH the main pattern of cognitive impairment is frontal dysfunction and memory deterioration. Because visual perceptive functions were not different between the two groups, such deterioration may not be a primary factor in the development of VH.

Plasma homocysteine levels in patients treated with levodopa: motor and cognitive associations

Abstract Objective: The aim of this study was to determine whether hyperhomocysteinemia caused by levodopa used in idiopathic Parkinsons disease (IPD) is associated with cognitive or physical impairments. The role of folate and vitamin B12 levels in this context was also ascertained. Methods: Thirty-nine patients who had been followed with the diagnosis of IPD in our clinic for > 2 years and 28 healthy control subjects with similar demographic features were included in the study. The homocysteine, folic acid and vitamin B12 levels and the results of the short test of mental status (STMS) and the clock drawing test of IPD patients were compared with those of the controls. Subsequently, the patients with a homocysteine level of >14 μmol/l were compared with those having a homocysteine level of <14 μmol/l by means of detailed neuropsychometric test batteries. Results: Homocysteine levels were significantly higher in the patient group in comparison with the controls. There was a negative correlation between hyperhomocysteinemia and the levels of vitamin B12 and folate. On the other hand, a positive correlation between hyperhomocysteinemia and the levodopa dose was detected. There was a positive correlation between hyperhomocysteinemia and unified Parkinsons disease rating scale (UPDRS) motor section. The critical dose of levodopa was observed to be 300 mg/d. In terms of cognitive and frontal functions, no significant difference was detected between the patients and control group. The subgroup with a homocysteine level of >14 μmol/l had a significantly poorer performance in frontal and memory tests. Discussion: In patients with IPD who are detected to have hyperhomocysteinemia, the assessment of the cognitive performance, folic acid and vitamin B12 levels and the supplementation of folic acid and vitamin B12 to the treatment regimen might be appropriate.

Parkinsonism caused by chronic usage of intravenous potassium permanganate.

Introduction:Chronic overexposure to manganese (Mn) may cause neuronal degeneration. Manganese intoxication is well known to induce parkinsonism. Manganese intoxication may be associated with abnormal magnetic resonance (MR) imaging (abnormal signal hyperintensity in the globus pallidus and substantia nigra on T1-weighted images). Cases:We report an unusual presentation of manganese intoxication due to administration of a combination of acetylsalicylic acid and ephedrine HCl, potassium permanganate, and vinegar melted in tap water and administered parenterally as a psychostimulant substance in 2 cases who developed symptoms resembling parkinsonism. Neurologic examination of both cases revealed disturbances of the extrapyramidal system and a characteristic “cock walk.” Tremor was present in the first case, whereas it was lacking in the second one. Cranial MRI showed bilateral symmetric T1-weighted hyperintense patterns in the globus pallidus, probably because of manganese accumulation. Different levels of response to levodopa were reported in the literature; in our cases, there was no response to levodopa. Conclusion:Chronic overexposure to manganese may cause an atypical form of parkinsonism associated with increased T1 signal in the basal ganglia on magnetic resonance imaging.

Relationship between visual hallucinations and REM sleep behavior disorder in patients with Parkinson's disease

OBJECTIVES REM sleep behavior disorder (RBD) has been documented to precede or to co-occur with Parkinsons disease (PD). Parkinsons disease is one of the most common neurological conditions associated with visual hallucinations. Cognitive dysfunction is present in PD, even at the early stages of these diseases. In this study we aimed to investigate the relationship between visual hallucinations and RBD in patients with idiopathic Parkinsons disease (IPD). Additionally, we evaluated the association of the cognition and the pattern of cognitive impairment with VHs and RBD, effects of factors like duration and severity of the disease and duration of levodopa usage. PATIENTS AND METHODS Seventy-nine patients, diagnosed as PD, were included the study and then, patients were divided into four groups; with RBD and VHs (group 1), with RBD but no VHs (group 2), with VHs but no RBD (group 3), without RBD and VHs (group 4). We compared each group with the others according to demographic characteristics and neuropsychological test scores. RESULTS Of all patients, in 46% (n=36) RBD and in 48% (n=38) VHs were observed. Our study established VHs in 58% of patients with RBD, and RBD in 55% of patients with VHs. However, due to a 40% incidence of VHs in patients without RBD, RBD and VHs were not found to be correlated. All of the neuropsychometric test scores did not reveal significant difference between groups. CONCLUSION Although it seems like there is a small association between RBD and VHs in our patients, it was not significant. Group 1 presented with significantly worse scores in UPDRS total scores and I, II subscores.

Chorea as the presentating feature of neurosyphilis

Syphilis is still a significant public health problem in developing countries. Although chorea is a very rare manifestation of neurosyphilis, it might be on occasions the initial symptom. This report presents a patients with neurosyphilis who had chorea as the initial presenting symptom.

Relationship of olfactory function with olfactory bulbus volume, disease duration and Unified Parkinson’s disease rating scale scores in patients with early stage of idiopathic Parkinson’s disease

We aimed to investigate the relationship between olfactory function and olfactory bulbus (OB) volume, disease duration and Unified Parkinsons disease rating scale (UPDRS) scores in early stage idiopathic Parkinsons disease patients. The University of Pennsylvania Smell Identification Test (UPSIT) was used for the evaluation of olfactory function. UPSIT scores for patients with Parkinsons disease were significantly lower than controls. There was no significant difference between stage 1 and stage 2 patients. OB volumes were higher in stage 1 and 2 patients than controls, but there was no statistical difference between the three groups. No significant correlation was found between UPSIT and UPDRS total scores, nor between UPSIT scores and disease duration in stage 1 and 2 patients. According to our results, we propose UPSIT be used as a screening test to diagnose presymptomatic patients, but not OB volumes.

The relation of sexual dysfunction to depression and anxiety in patients with Parkinson's disease.

Objective In this study, we aimed to find out whether sexual dysfunction in patients with Parkinson’s Disease (PD) was associated to PD-related disability and whether this relationship was modulated by depressive and anxiety symptoms. Methods Eighty-nine consecutive patients with idiopathic PD who attended to our movement disorders outpatient clinics between January 2011 and June 2014 were included in this study. The diagnosis of PD was confirmed by a movement disorders specialists in Neurology, according to UK Parkinson’s Disease Society Brain Bank Criteria. The Unified PD Rating Scale (UPDRS) motor was used to assess motor disability and Hoehn and Yahr stage (H&Y) was used to establish disease severity. Cognitive function was assessed by the Mini-Mental State Examination. Patients were also administered the Hamilton depression (HAMD) and anxiety (HAMA) rating scales. The sexual functions of the patients were rated by applying the Turkish version of the Arizona Sexual Experiences Scale (ASEX). Results The mean age at the time of the study visit was 67.74±9.05. Male/female ratio was 1.87. Mean UPDRS total was 29.06±13.96 and mean UPDRS motor was 17.62±9.07. Mean HAMD score was 13.92±10.86, 58.4% of the patients had minor or major depression; and mean HAMA score was 7.94±6.49, 56.2% of the patients had minor or major anxiety. The mean ASEX score was 18.54±7.27 out of a maximum of 30. ASEX total scores were correlated with age, H&Y stage and HAMA scores. Age and also age at onset were correlated with ASEX subdomains except sexual desire. There was no correlation between disease duration and ASEX subdomains. UPDRS motor score was correlated with erection/lubrication. HAMD was only correlated with orgasm satisfaction. HAMA score was correlated with stimulation and orgasm. Conclusion In patients with PD, there may be a common factor that modulates both depression, anxiety and sexual function. Further studies are needed to clarify the exact relationship.

The Second Lumbrical–interosseous Latency Comparison in Carpal Tunnel Syndrome

Summary: Carpal tunnel syndrome (CTS) is the most common nerve entrapment syndrome. Electromyogram (EMG) is beneficial in supporting the diagnosis of CTS. We compared standard nerve conduction studies of EMG with median and ulnar motor nerve conduction studies from recordings of second lumbrical and interosseal muscles in supporting the diagnosis of CTS. In this study, a total of 242 patients were included, and a total of 375 hands were involved. Electrophysiologic CTSs were diagnosed in 283 hands of 161 patients. A significant association between second lumbrical–interosseal distal motor latency difference (2LI-MDLD) and CTS was found in this study. Statistically, every 0.1 increment in the 2LI-MDLD value was observed to increase the risk of disease by 1.74. When a cut-off of ≥0.5 for 2LI-MDLD is taken for predicting CTS, the sensitivity of the test is found to be 89.4% and specificity 84.4%. When the cut-off value for motor distal latency of second lumbrical of the median nerve (2L-MDL) was taken as ≥3.15 milliseconds in the diagnosis of CTS, the sensitivity of the test was 87.3%, and specificity 70.7%. Previous reports and our findings suggest that in CTS diagnosis, not only 2LI-MDLD value but also 2L-MDL value are easy and rapidly obtainable and offer additional information in very severe cases where compound muscle action potentials (CMAP) cannot be recorded from the abductor pollicis brevis (APB) muscle.

Cerebral Venous Sinus Thrombosis: Gender Differences in Ten Years Experience

Cerebral venous sinus thrombosis: gender differences in ten years experience Objective: Cerebral venous sinus thrombosis (CVST) is an uncommon subtype of stroke. CVST is much more common in women than men with a ratio of three to one. This women preponderance is attributed to gender-specific risk factors (GSRF). In many patients, symptoms develop over days or weeks. In some patients, clinical presentations are nonspesific. Patients and Methods: We reviewed the records of patients with CVST treated at Neurology department of Haseki Training and Research Hospital between 2001-2011, which diagnoses were confirmed with cranial magnetic resonance imaging (MRI) and magnetic resonance venography (MRV). Thirty- four patients were included the study. Women/men ratio was 3.25/1. We analyzed the demographic features, comorbid conditions, clinical presentation, neuroradiological findings. Results: Thirty- four patients were included the study. Headache was present in all patients and it was present as isolated in 47.1% (n=16) of the patients. In 52.9% (n=18) of the patients onset of the symptoms were subacute, 29.4% (n=10) chronic, 17.6 (n=6) acute. Of all patients, 76.5% (n=26) were women. Transverse sinus was the mostly affected sinus as either isolated or with the other CSVT in both groups (in 20 women and 8 men). The most common presentation symptom (43.78%) in women was headache whereas; it was intracranial hypertension (34.78%) in men. Half of our women patients with GRSF; 7 (26.92%) women were oral contraceptives user and 5 (15.38%) women were in pregnancy or puerperium period. Conclusion: We have found differences between women and men in the presentation and risk factors.

Valvular heart disease in patients with Parkinson’s disease treated with pergolide, levodopa or both

Cardiac valvulopathy has been reported in patients with Parkinsons disease treated with pergolide. The aim of this study was to clarify the frequency and severity of valvular heart disease (VHD) in patients treated with pergolide, levodopa or both. We evaluated VHD by transthoracic echocardiography in 25 patients who were taking pergolide, 29 patients taking levodopa and 20 patients taking both levodopa and pergolide. All groups were compared with two separate age-matched control groups. There was no increase in the frequency of any type of echocardiographically-significant valvulopathy in the pergolide groups. Echocardiographically significant aortic regurgitation was found in 8% of the patients in the pergolide group and in 37.9% of the patients in the levodopa group. There was no correlation between VHD and pergolide dose, cumulative dose or duration of therapy. The mean pergolide dose was 2.6+/-1.4 mg/day in the pergolide monotherapy group. We did not find any unequivocal evidence that pergolide causes significant valvular regurgitation. However, the mean pergolide dosage in our study was lower than in previous studies.