Normative data of sympathetic skin response and RR interval variation in Turkish children

Akyüz, Gülseren; Türkdoğan-Sözüer, Dilşad; Turan, Betül; Canbolat, Nazan; Yılmaz, Ioana; Us, Önder; Kayhan, Önder

doi:10.1016/s0387-7604(98)00073-4

Cited by 15 publications

(11 citation statements)

References 15 publications

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“…Some studies have reported the intra-individual variations for amplitudes (2-48%) and latencies (2-22%). [25,[27][28][29][30] Although Özgöçmen et al [25] found a close correlation between SSR latencies [26] investigated the autonomic nervous system dysfunction in FMS patients. They found significantly longer SSR distal latencies which are in contrast with our results.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Sympathetic Skin Response and F Wave in Fibromyalgia Syndrome Patients

et al. 2011

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Section: Discussionmentioning

confidence: 99%

Evaluation of Sympathetic Skin Response and F Wave in Fibromyalgia Syndrome Patients

et al. 2011

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“…6,7,9,14 Although it has been widely considered that parasympathetic dysfunction precedes sympathetic impairment in patients with CSX, we found that the SSR abnormality was parallel to the low D% -R% and D%/R%. This finding may point out the possibility of both parasympathetic and sympathetic involvement.…”

Section: Discussionmentioning

confidence: 57%

Sympathetic Skin Response and RR Interval Variation in Patients With Cardiac Syndrome X

et al. 2007

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Sympathetic skin response (SSR) and R-R interval variation (RRIV) are noninvasive electrophysiological tests used in the assessment of sympathetic and parasympathetic nervous system function, respectively. Cardiac syndrome X (CSX) is usually diagnosed in the presence of typical angina pectoris, a positive response to exercise testing, and normal-appearing coronary angiograms without spasm induced by hyperventilation or ergonovine. Alterations of autonomic nervous system control of cardiac function have been described in CSX. The aim of the study was to investigate autonomic nervous system function in patients with CSX. Nine patients with CSX (2 men, 7 women) and healthy controls (11 men, 19 women) were included in the study. SSRs were recorded from palm of hands by stimulation of the median nerve. RRIV recordings were taken from precordium during both rest position (R%) and deep inspiration of 6 times per minute (D%). In addition D% - R% and D%/R% values were calculated. SSR amplitude of CSX was lower than in controls (3.64 +/-4.78 vs 6.36 +/-3.4 mV, p = 0.017). There was no difference between groups for SSR latency values (CSX: 1,366 +/-99; controls: 1,383 +/-85 msec). Also, R% (CSX: 13.04 +/-6.3; controls: 12.92 +/-3.91) and D% (CSX: 16.63 +/-8.88; controls: 21.43 +/-7.3) values were similar in the 2 groups. However, D% - R% (CSX: 3.59 +/-10.11; controls: 8.51 +/-7.01) and D%/R% (CSX: 1.45 +/-0.93; controls: 1.78 +/-0.69) values were slightly lower in patients with CSX but were not statistically significant. A linear correlation was found between SSR amplitude and D%/R% (r = 0.336, p = 0.036). The authors conclude that, among patients with CSX, there are alterations of autonomic nervous control of skin as well as of other organs (ie, heart). SSR and RRIV testing can be done easily in the neurophysiology laboratory to assess the sympathetic and parasympathetic system, respectively.

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“…Although only the absence of response has been considered as the abnormality instead of the abnormalities in absolute latency and amplitude value of sympathetic skin response in many of the studies in the literature, 50,51,52 it has been highlighted that prolonged sympathetic skin response latency, particularly in the presence of asymmetry, should be considered pathologic. 53 Akyüz et al 54 investigated sympathetic skin response and R-R interval variability in healthy Turkish children and demonstrated that sympathetic skin response latencies were changed with the stimuli from different directions contrary to the data reporting that latency of previously reported sympathetic skin response remained unchanged regardless of the place and type of stimuli. Ş ahin et al 32 evaluated nerve conduction studies of the patients with impaired glucose tolerance and found abnormality in sympathetic skin responses as a prolongation of the latency by 28% in the upper extremity, by 53% in the lower extremity, and by 16% in both upper and lower extremities.…”

Section: Discussionmentioning

confidence: 88%

Evaluation of Nerve Conduction Studies in Obese Children With Insulin Resistance or Impaired Glucose Tolerance

et al. 2014

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The aim of the study was to investigate nerve conduction studies in terms of neuropathic characteristics in obese patients who were in prediabetes stage and also to determine the abnormal findings. The study included 69 obese adolescent patients between April 2009 and December 2010. All patients and control group underwent motor (median, ulnar, tibial, and peroneal) and sensory (median, ulnar, sural, and medial plantar) nerve conduction studies and sympathetic skin response test. Sensory response amplitude of the medial plantar nerve was significantly lower in the patients with impaired glucose tolerance and insulin resistance. To our knowledge, the present study is the first study demonstrating the development of sensory and autonomic neuropathy due to metabolic complications of obesity in adolescent children even in the period without development of diabetes mellitus. We recommend that routine electrophysiological examinations be performed, using medial plantar nerve conduction studies and sympathetic skin response test.

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Normative data of sympathetic skin response and RR interval variation in Turkish children

Cited by 15 publications

References 15 publications

Evaluation of Sympathetic Skin Response and F Wave in Fibromyalgia Syndrome Patients

Evaluation of Sympathetic Skin Response and F Wave in Fibromyalgia Syndrome Patients

Sympathetic Skin Response and RR Interval Variation in Patients With Cardiac Syndrome X

Evaluation of Nerve Conduction Studies in Obese Children With Insulin Resistance or Impaired Glucose Tolerance

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