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    Assesment of P wave duration and dispersion in Parkinson's disease
    (Pergamon-Elsevier Science Ltd, 2006) Kocer, Abdulkadir; Karakaya, Osman; Barutcu, Irfan; Esen, Ozlem Batukan; Kargin, Ramazan; Domac, Fusun Mayda
    Cardiovascular disorders such as decreased heart rate variability, orthostatic hypotension, and arrhythmias have been frequently observed in Parkinson's disease (PD) patients. In this study, authors measured P wave duration and dispersion in PD patients and controls. Twenty-three consecutive patients with idiopathic PD and sex-age matched 23 control subjects were included to the study. A 12-lead surface ECG was obtained from each participant. Maximum-minimum P wave duration and P wave dispersion (PWD) were measured in both groups. Maximum P wave duration was found to be higher in PD patients than controls (117 +/- 12 vs. 105 +/- 9 ms p=0.001). Minimum P wave duration was similar in PD patients and controls (64 +/- 11 vs. 63 +/- 11 msp=0.7). PWD in PD patients was also found to be higher than those of controls (53 +/- 11 vs. 43 +/- 10 ms p=0.0001). P wave duration and PWD did not significantly differ between PD patients taking anti-parkinsonian agents from those who were not (119113 vs. 116 +/- 13 ms p=0.4 and 55 +/- 11 vs. 52 +/- 11 ms p=0.5, respectively). Moreover, when the PD patients taking anti-parkinsonian agents were excluded from the study, PD patients had still higher P wave duration and PWD compared to controls (119 +/- 11 vs. 105 +/- 9 ms p=0.004, 52 +/- 10 vs. 43 +/- 10 ms p=0.009, respectively). In conclusion, we found that P wave duration and PWD were greater in PD patients compared to control subjects. (c) 2006 Elsevier Inc. All rights reserved.
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    Auditory evaluation in Parkinsonian patients
    (Springer, 2009) Yylmaz, Sueleyman; Karaly, Elif; Tokmak, Abdurrahman; Guclu, Ender; Kocer, Abdulkadir; Ozturk, Ozcan
    Twenty Parkinson's disease (PD) patients (mean age 69.9 years) and 24 normal individuals' (mean age 63.8) both ears were investigated by brainstem auditory evoked potentials (BAEPs) and pure tone audiometry (PTA). There were no statistically significant age differences between the patients and control subjects. PTA results were significantly elevated for PD patients in 4,000 and 8,000 Hz (P < 0.05). Parkinsonian patients showed significantly increased latencies in wave V and I-V interpeak latencies (P < 0.05). The results of this study suggest that PTA and BAEPs could be affected in parkinson disease.
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    Episodic tonic pupil with aneurysm located on the same side
    (Riyadh Armed Forces Hospital, 2008) Kocer, Abdulkadir; Degirmenci, Yildiz; Yuksel, Harun; Eryilmaz, Mehmet
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    Long-term depression is a stroke risk factor
    (Cambridge Univ Press, 2011) Kocer, Emel; Kocer, Abdulkadir; Degirmenci, Yildiz; Eryilmaz, Mehmet
    Background and Aim: Only a few studies have evaluated depression prevalence in pre-stroke period in comparison to controls. We investigated this association based on a hospitalised stroke population. Methods: One hundred and forty-eight stroke patients were evaluated. The presence of depression was compared with those of 100 healthy controls without stroke, from the same region. Depression was accepted as present or not present after history and clinical evaluation according to Diagnostic and Statistical Manual of Mental Disorders-IV. Socio-demographic variables, other stroke risk factors and the time of diagnosis of depression (how many year or month they got depression) were recorded. Results: Gender and mean age of patients and controls were similar in comparison. Depression was diagnosed in 27 patients and 24 controls (p > 0.05). The time period passed after diagnosis of depression was longer in stroke patients in comparison to controls (p < 0.001). Conclusions: The risk of stroke should be considered in elderly with long-term depression. This indicates that treatment of depression is another factor which should be considered in prevention of brain stroke.
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    P wave duration changes and dispersion A risk factor or autonomic dysfunction in stroke?
    (Riyadh Armed Forces Hospital, 2009) Kocer, Abdulkadir; Barutcu, Irfan; Atakay, Selcuk; Ozdemirli, Burcu; Gul, Levent; Karakaya, Osman
    Objectives: To investigate the P wave duration and P wave dispersion in stroke patients, and to compare those with healthy subjects. Methods: We measured maximum and minimum P wave durations, and dispersion on the 12-lead surface ECG in 67 consecutive patients with first ever-acute ischemic stroke and 58 controls at the neurology wards of the Medical School, Duzce, Turkey, between May 2005 and October 2006. The subjects were not included if there were a history of atrial fibrillation, cardiac problem, and using drugs related to cardiovascular diseases or psychiatric problems. Results: P wave durations and dispersion were similar in stroke patients and controls. The correlation analysis revealed a positive relation between age and Pmin duration (p=0.03). The mean Pmin values were 63.85 +/- 22.55 for male and 76.43 +/- 26.84 for female patients, and this difference was statistically significant (p=0.04). The correlations between P wave durations, and the presence of risk factors, the stroke outcome scales, and death of patient within 6 months were not statistically significant. Conclusions: Although there were some previous reports on ECG changes including P waves in acute stroke, we found that P wave durations and dispersion were similar in acute stroke patients and controls. This may be related to the patient selection criteria of this study, as we did not include patients with any previous cardiac abnormality We concluded that the autonomic nervous system dysfunctions causing cardiac abnormalities in stroke need more investigation.