Sensory and motor conduction in motor neurone disease.
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Adult↗
Biomedical subjects
C Ertekin
Publications and source records attributed to C Ertekin.
Cerebral evoked potentials after stimulation of the posterior urethra in man.
Cerebral evoked potentials (EPs) were recorded in 25 neurologically normal subjects aged 22-73 years (mean 44.0) after stimulation of the posterior urethra (PU) and the pudendal nerve. After maximal PU stimulation 2 different configurations of the potential were found. In 12 cases a simple bi-triphasic wave form was recorded while in 12 cases there was a bifid form of the first negative wave. In 1 case identical EPs were recorded after PU and pudendal nerve stimulation. It was concluded that (1) PU stimulation excites fibres in the pudendal nerve at higher stimulation strength, resulting in a bifid wave form of the cerebral evoked potential in some individuals, (2) the most prominent negative peak, N1, with a latency of 102.1 +/- 13.2 msec, is the most reproducible part of the PU-evoked potential, (3) the N1 is probably transmitted through A delta fibres localized in the pelvic nerves, (4) there are differences between individuals concerning pudendal and pelvic nerve involvement in afferent innervation of the urethra.
Adult↗
The case of acute appendicitis and appendiceal duplication.
BACKGROUND: Appendiceal anomalies are extremely rare malformations that are usually found in the adult population as an incidental finding during laparotomy performed for other reasons. Abnormal development of the appendix usually takes the form of a double appendix. Accompanying intestinal, genito-urinary or vertebral malformations may be present when appendiceal duplications are detected in childhood. CASE REPORT: Presented herein is a case of perforated double appendix, which causes acute abdomen in a child, without any co-existing pathology. CONCLUSION: Appendiceal anomalies are of great practical importance and a surgeon must bear them in mind during an operation. If he overlooks them, the patient undergoing surgery may experience grave consequences. They also may be a forensic issue in cases when a second explorative laparotomy reveals 'previously removed' vermiform appendix.
Adolescent↗
Subclinical anterior horn cell involvement in juvenile myoclonic epilepsy.
Although clinical signs of muscle wasting and weakness were not present, electromyographic (EMG) evidence of subclinical anterior horn cell involvement of spinal cord was noted in 5 patients with juvenile myoclonic epilepsy (JME). Quantitative interference pattern analysis of EMG recorded from the anterior tibial muscle showed that the ratio (amplitude:turn/turn:second, A:T/T:S) was significantly increased in 10 patients with JME and 12 patients with lower motor neuron disorders (LMND) as compared with those of 22 normal subjects and 15 patients with frequent generalized tonic-clonic seizures (GTC). Subclinical anterior horn cell involvement detected by EMG techniques can be related to a genetically determined component of JME.
Adolescent↗
Management of vascular injuries of the extremities. One hundred and fifteen cases.
In between the years 1984-1989, 115 peripheral arterial injuries were admitted to the Emergency Surgical Unit of Istanbul Medical Faculty. Seventy-two patients (62%) had upper extremity and 43 patients (38%) had lower extremity vascular injuries. Twenty-eight of these cases (24%) were due to blunt trauma, angiographic studies were obtained in 26 patients. There were 9.5% mortality and 7% amputation rate. We conclude that arterial injuries deserves early recognition, rapid fixation of osseous injuries, wide debridement, fasciotomy in blunt injuries and proper antimicrobial therapy.
Adolescent↗
Electrophysiological findings of muscle and peripheral nerves in patients with multiple myeloma.
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Aged↗
Human root and cord potentials evoked by Achilles tendon tap.
Lumbosacral root potentials and sacral spinal cord segmental responses were recorded epidurally in 24 normal adult subjects by tapping the Achilles Tendon with the electronic hammer (mechanical). The averaged responses were also recorded from the same epidural levels after the electrical stimulation of the Posterior Tibial nerve at the popliteal fossa (electrical). While the dorsal and reflexively evoked ventral root responses were easily obtained by the electrical stimulation; by the mechanical stimulation only a late and small ventral root response with two negative deflections could be evoked at the L4-5 or L5-S1 I.V. (intervertebral) epidural levels. The ventral root responses elicited by mechanical stimulation appeared 4.0 msec later than those elicited by the electrical stimulation. This time interval was exactly the same when the latencies of the Soleus reflexes to both stimuli were compared that for the Achilles tendon reflex being 4.0 msec delayed. When the sums of their afferent and the efferent conduction times (to and from Th12-L1 I.V. levels) were extracted from the total conduction times of the Soleus H and Achilles tendon reflex obtained by the EMG recordings, the sacral cord conduction delay was found 1.8 msec for the H-Reflex and 4.1 msec for the Achilles tendon reflex. It was suggested that the twice longer time delay along the sacral cord to Achilles tendon tap might be due to the oligosynaptic linkage of the Achilles tendon reflex or it may result from highly dispersed afferent volley producing a slowly rising wave or excitation that takes longer to reach threshold for the soleus motoneurone discharges.
Achilles Tendon↗