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H Bozdemir

Publications and source records attributed to H Bozdemir.

6 recordsLinked to original sources
PubMed2006

Accuracy of bedside diagnosis versus Allen and Siriraj stroke scores in Turkish patients.

Computerized tomography and magnetic resonance imaging allow the accurate diagnosis in stroke and distinction of ischemic from hemorrhagic lesions. However, clinical diagnosis is still critical where neuroimaging techniques are not available, especially to establish first-aid measures in a stroke patient. In this prospective study of 300 patients with stroke, the diagnosis of ischemic and hemorrhagic strokes was made as an informal bedside diagnosis prior to neuroimaging. The accuracy of bedside diagnosis was also compared with the results of the Allen and Siriraj stroke scores. Then, the reliability of these scores and our informal bedside diagnosis, along with the final diagnosis, were compared with each other. Our informal bedside diagnosis was correct in 250 of the 300 patients (83.3%). The diagnostic sensitivity and positive predictive value (PPV) of bedside diagnosis for ischemic stroke were 87.8% and 86.0% and for intracerebral hemorrhage 75.7% and 78.5%, respectively. Sensitivity and PPV for every cut-off value of the Allen and Siriraj stroke scores were less than that of sensitivity and PPV of informal bedside diagnosis. When the receiver operating curves obtained from the Allen and Siriraj stroke scores were compared, the Allen stroke score was found to be a better predictor in the final diagnosis. Our data suggest that an informal bedside diagnoses is as good as diagnoses made on certain intracerebral hemorrhages and on certain ischemic strokes by the Siriraj and Allen stroke scores; when compared, the Allen score seems to be better than the Siriraj stroke score. Hence, the use of both scores is recommended in epidemiologic studies as a screening tool as suggested by previous studies employing other diagnostic tools in clinics.

Adult↗
PubMed2006

Crossed aphasia in multiple sclerosis.

Aphasia is a rare sign of multiple sclerosis (MS). Several different forms of aphasia have been reported in MS. We report, to our knowledge, the first case of a MS patient with crossed aphasia during an attack.

Adult↗
PubMed2002

The effects of cold stress test on vasomotor tonus in normal controls.

Plethsymographic recordings are used to evaluate changes in peripheral vascular tonus. Twenty-six volunteers (15 men, 11 women) with a mean age 31 years were included in this study. Plethsymographic recordings were done both at baseline and +40C temperatures bilaterally. Significant reductions in systemic blood flow were noted with different maneuvers. Reactive hyperemia occurring after ischemia was local, however local reduction in blood flow after cold test was systemic. As the local temperature increased, the blood flow parameters normalized, too. In normal controls these values normalized in 20 minutes. The changes in vasomotor tonus due to cold test demostrated a parallel pattern.

Adult↗
PubMed2001

Vascular parkinsonism: a distinct, heterogeneous clinical entity.

OBJECTIVES: The aim of this study was to define the symptoms and signs of suspected vascular parkinsonism (VP) which is still a debatable concept. MATERIAL AND METHODS: Patients with parkinsonism were grouped into patients with suspected VP and Parkinson's disease (PD) after other causes for secondary parkinsonism, and parkinsonism-plus syndromes were excluded. The clinical features of 16 patients with suspected VP to those of 50 diagnosed with PD were compared. All patients were assessed using unified Parkinson's disease rating scale (UPDRS) and all had cerebral MRIs. RESULTS: Patients with VP had significantly older onset age and shorter duration of disease with gait disorder as the most frequent initial symptom. All PD patients had satisfactory response to levodopa treatment, whereas only 38% VP patients had satisfactory response to levodopa treatment. Vascular risk factors were more common in VP (81%) than PD (32%). Postural instability, freezing, gait disturbance, pyramidal signs, and postural tremor were significantly more prevalent in patients with VP than in PD. In VP patients these features were more prominent in the lower limbs. Twenty-five percent had acute onset VP. All patients with VP had ischemic lesions, mainly in subcortical white matter, to a lesser extent basal ganglia and brainstem, in their cerebral MRIs, while 70% of PD patients had normal MRIs. CONCLUSION: The differences in the clinical features support the concept that VP is a distinct clinical entity with heterogeneous clinical, MRI, and possibly pathophysiological features.

Adult↗
PubMed1996

Cerebral responses elicited by stimulation of the vesico-urethral junction (VUJ) in diabetics.

To investigate the involvement of the visceral afferent nerves in diabetes mellitus, we enrolled 46 male patients in a study, examining the cerebral potentials evoked by stimulation of the vesico-urethral junction (VUJ CEP) and the pudendal (penile CEP) and posterior tibial nerves (tibial CEP). The age range was 23-67 (mean 45.8) years. The epithelial surface of the vesico-urethral junction was stimulated bipolarly with an electrode attached to a specially produced Foley catheter. Cerebral responses were recorded bipolarly at vertex. VUJ CEPs were absent (27 patients) or protracted and/or of low amplitude (4 patients) (total 31 patients; 67.8%). Penile CEP and/or tibial CEP could be obtained in all cases; however, protracted P1 peak latencies were detected in 15 (32.8%). The abnormalities of VUJ CEP did not correlate with the presence of peripheral neuropathy, while the abnormalities of penile CEP and/or tibial CEP invariably coincided with the presence of peripheral neuropathy. Although neither age nor the duration of diabetes correlated with abnormal CEPs as determined by any of the tests, insulin dependence correlated with abnormal penile CEP and to a lesser extent with VUJ CEP. We conclude that VUJ CEP is informative in evaluating the physiological condition of visceral afferents, and can be used in diagnosis of the early involvement of visceral afferents in diabetes mellitus.

Adult↗