Biomedical subjects

Dariusz A Szabela

Publications and source records attributed to Dariusz A Szabela.

5 recordsLinked to original sources

PubMed2005

[The picture of visual evoked potentials in type 1 diabetes mellitus].

The aim of this study was to assess frequency of abnormal visual evoked potentials in type 1 diabetic patients and the correlation between patients' age, duration of the disease, metabolic control and coexisting clinical complications on the abnormal recordings. The investigation was carried out in a group of 50 diabetic patients, aged from 16 to 55 years. The VEP recordings were performed four times, each time using a pattern made up of elements of another size (18, 36, 72 and 144 angular minutes). With this method the abnormal VEP were recorded in 26% of the cases and it was possible to find 10% patients who had more than one abnormal test. In VEP recorded with stimulation with a single size pattern, abnormal results were recorded from 8% to 14% of the cases. The pathological VEP were recorded as elongation of P100 latency in 86% type 1 diabetic patients, and as significant difference between the latencies from both eyes in 14% cases. There was no statistically significant correlation between the age, duration of the disease, coexisting clinical complications or metabolic compensation and the abnormal recordings.

Adolescent↗

PubMed2005

[The picture of visual evoked potentials in type 2 diabetes mellitus].

The aim of this study was to assess frequency of abnormal visual evoked potentials in type 2 diabetic patients and the correlation between patients' age, duration of the disease, metabolic control and coexisting clinical complications on the abnormal recordings. 41 diabetic patients, aged 35 to 62 years were examined. The VEP recordings were performed four times, each time using a pattern made up of elements of another size (18, 36, 72 and 144 angular minutes). With this method the abnormal VEP were recorded in 22% of the cases. The abnormal VEP recordings with a single size pattern were in 8% to 14% of the cases. The P100 latency increased in 33% of the pathological recordings and in about 66% of the cases there was a significant difference between the latencies from both eyes. There was no statistically significant correlation between the age, duration of the disease, coexisting clinical complications or metabolic compensation and the abnormal recordings.

Adult↗

PubMed2005

[Accuracy of blood glucose concentration values outcome performed at various skin sites with personal glucose meters].

AIM: The aim of this study was the comparison of capillary blood glucose values performed at different skin sites with various glucose meters. PATIENTS AND METHODS: 50 type 2 - diabetic patients were enrolled into the study. At the first part of study - in stable glucose phase, measurements were performed with four various glucose meters at four skin sites: finger, forearm, abdomen, big toe. At the second part of the study all the subjects underwent one hyperglycemic challenge (after intravenous 40% glucose load) and hypoglycemic challenge (after intravenous 6 I.U.dose of short-acting human insulin). All of those capillary glucose values were compared between the venous blood and the interstitial glucose values. RESULTS: No significant differences in performed glucose values were observed between the four types of glucose meters (p>0.05). Only the glucose values at finger were similar to the venous and the interstitial glucose levels in stable glycaemic and rapid glucose change phase as well (p>0.05). CONCLUSION: 1. Glucose meters are precise and reliable tool for capillary glucose measurement. 2. Capillary glucose measurements can differ depend on various skin sites. 3. Capillary glucose measurements at finger are reliable and comparable with the suitable venous and the interstitial glucose levels.

Abdomen↗

PubMedDate not supplied

[Use of needle electromyography for diagnosis of radiculopathies].

Radiculopathy is sometimes evaluated with needle electromyography as additional examination to radiographic imaging. The purpose of this study was to determine the optimal needle electromyography protocol and the use of needle electromyography in the diagnosis of radiculopathy. The authors analysed English language writings from years 1981-2000. The selected studies reported a wide range of needle EMG abnormalities--from about 30 to 100% of pathological EMGs. That is caused by wide variety of patient populations and various EMG protocols. EMG of leg muscles in radiculopathy can consist of the assessment of the spontaneous activity only or be completed with the assessment of motor unit potential (MUP). The EMG of paraspinal muscles assesses spontaneous activity only. The number of abnormalities in needle EMG grows with the presence of characteristic radiculopathy symptoms, but positive EMG examinations are of importance only in cases where diagnosis is complicated. The rate of pathological results is higher when needle electromyography is used in the muscles of paraspinal region and extremities at the same time. The assessment of the spontaneous activity in extremity muscles alone minimizes the influence of error- causing factors on the EMG result. Nevertheless lack of assessment of motor units potentials makes electromyographic investigation of chronic radiculopathy impossible. Sensitivity and specificity of the method have to be determined before the clinical use of the assessment of MUP in chronic radiculopathy, especially in patients without motor weakness. Needle EMG abnormalities correlate with radiological findings in limited range as would be expected from the occurrence of radiological findings in asymptomatic patients and overlapping innervations of myotomes.

Electromyography↗

PubMedDate not supplied

[Suprascapular nerve entrapment. A case report].

We present a case of a 35 year-old man, an office employee, who got ill when working hard building his own house. At the same time shoulder pain and fever occurred, the latter due to the tooth apical abscess. Several months later atrophy of the left supraspinatus and infraspinatus muscles was found. The imaging study (MRI, USG) did not show changes which might affect the suprascapular nerve. Electromyography of the left infraspinatus and supraspinatus muscles revealed fibrillation and positive sharp waves. Distal motor latency to the infraspinatus and supraspinatus muscles, examined by electroneurography, was normal. Mechanical irritation of the spinoglenoid notch is only one of possible mechanisms of the suprascpular nerve impairment in this case. The second is the inflammatory process. Suprascapular nerve impairment does not play an important role in pathogenesis of shoulder pain, but probably it is taken too rarely into consideration in differential diagnosis of shoulder pain.

Adult↗