-This study was done to evaluate the long-term patient's satisfaction after carpal tunnel syndrome (CTS) electrodiagnostic done between 1989 and 1994 (5 to 10 years follow-up). Mail contact was made to 528 consecutive cases with a questionnaire to be filled; 165 patients responded after 19 exclusions. CTS severity was graded from 0 (incipient) to 4 (severe) after a combination of median sensory distal latency, sensory median-radial latency difference and amplitude of the median compound muscle action potential. Current symptoms ("cure", improved, unchanged or worsed) and the therapy utilized, either surgical or conservative, were analyzed to the initial CTS severity, age and duration of symptomatology. Surgical release was done in 114 cases (69%). Patient's satisfaction after surgical and non-surgical were respectively, 77.6% and 16% ("cure"), 13.6% and 52% (much improved), 5.4% and 9.3% (little improved), 2.7% and 16% (unchanged), 0.7% and 6.7% (worsed). The frequency of "cure" versus unchanged/worsed or "cure"/much improved versus unchanged/worsed was highly significative (Fisher, P-value < 0.001) and was not influenced by the CTS electrophysiological severity. There was no relationship between the outcome after surgery and duration of symptomatology, age or CTS severity. Conservative benefice was more prevalent in those with shorter symptomatology and older age; the majority of conservative failure cases had mild initial CTS. We concluded the excellent surgical benefice described by patients and the absence of any predictive factors based on CTS severity, age or duration of symptomatology for outcome.KEY WORDS: carpal tunnel syndrome, median nerve, compression neuropathy, electrodiagnosis, nerve conduction.Síndrome do túnel do carpo: avaliação evolutiva de longo prazo após confirmação eletrodiagnóstica Síndrome do túnel do carpo: avaliação evolutiva de longo prazo após confirmação eletrodiagnóstica Síndrome do túnel do carpo: avaliação evolutiva de longo prazo após confirmação eletrodiagnóstica Síndrome do túnel do carpo: avaliação evolutiva de longo prazo após confirmação eletrodiagnóstica Síndrome do túnel do carpo: avaliação evolutiva de longo prazo após confirmação eletrodiagnóstica RESUMO -O presente estudo tem por objetivo avaliar a terapia utilizada e o grau de satisfação dos pacientes que tiveram diagnóstico eletrofisiológico de síndrome do túnel do carpo (STC) entre 1989 e 1994 (528 casos); foram respondidas 184 cartas entre 528 enviadas (34,8%) sendo utilizadas 165. A gravidade do STC foi classificada de 0 a 4 de acordo com uma combinação de valores de latência distal sensitiva e amplitude do potencial de ação muscular composto do nervo mediano e diferença de latência sensitiva mediano/radial. As questões foram relativas a sintomatologia atual e terapêutica utilizada, cirúrgica ou conservadora. As respostas foram correlacionadas ao estudo de condução nervosa inicial, idade e tempo de sintomatologia. Os pacientes submetidos a cirurgia somaram 69% (114 casos). O benefício cirúrgico e não cirú...
-This study was done to assess the percentage of abnormality in additional nerve conduction techniques after normal median distal latency (routine) in mild carpal tunnel syndrome (CTS). Bilateral nerve conduction studies were carried out in 116 consecutive symptomatic CTS patients (153 hands). Mild cases were based on normal routine (< 3.7 ms, peak-measured, 14 cm) and at least one technique abnormal of the following: sensory median-radial difference (MR); sensory median-ulnar difference (MU4); mixed palm medianulnar difference (MUP); median palm latency (PW); and motor median distal latency (MDL). After normal cutoff values for routine, 3.1 to 3.6 ms (< 3.7 ms), we found an abnormal MR, ranging from 86.6 to 93.4%, followed by MU4 (40 to 81.7%), MUP (20 to 71.2%), PW (0 to 41.1%), and MDL (0 to 19.6%). The most frequent abnormal association were MR plus MU4 in 90.1%, followed by MR plus MUP and MU4 plus MUP. The most frequent abnormal additional nerve conduction technique for mild CTS electrodiagnosis was MR, followed by MU4 and MUP. Percentage of MR abnormality was very high regardless of the median routine latency cut-off (< 3.1 to < 3.6 ms).KEY WORDS: carpal tunnel syndrome, median nerve, entrapment neuropathy, electrodiagnosis, nerve conduction. Utilidade de técnicas adicionais de condução nervosa para o dignóstico de síndrome do túnel do carpo leveRESUMO -Este estudo foi realizado para avaliação da percentagem de anormalidade de técnicas adicionais de condução nervosa no síndrome do túnel do carpo (STC) leve quando o valor de latência distal sensitiva do nervo mediano (rotina) está dentro dos limites normais. Condução nervosa bilateral foi realizada em 116 pacientes consecutivos com STC sintomático (153 mãos). A seleção foi feita baseada na rotina normal (< 3,7 ms, medida no pico, 14 cm) e, pelo menos uma técnica anormal entre as seguintes: diferença sensitiva medianoradial (MR); diferença sensitiva mediano-ulnar (MU4); diferença mediano-ulnar palmar (MUP); latência palmar do mediano (PW); e latência distal motora do mediano (MDL). Os valores normais da rotina foram separados em grupos desde 3,1 até 3,6 ms (< 3,7 ms), obtendo-se valores anormais entre 86,6 e 93,4% (MR), 40 e 81.7% (MU4), 20 e 71,2% (MUP), 0 e 41,1% (PW) e 0 e 19,6% (MDL). A associação anormal mais frequente foi MR com MU4 em 90,1%, seguido de MR com MUP e MU4 com MUP. A técnica adicional isolada anormal mais frequente foi MR seguida de MU4 e MUP. O percentual de anormalidade da técnica MR foi muito elevada, independentemente do valor de corte na condução rotina (3,1 a 3,6 ms). PALAVRAS-CHAVE: síndrome do túnel do carpo, nervo mediano, neuropatia compressiva, eletroneuromiografia, condução nervosa. Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy in upper limbs. Electrodiagnosis is very sensitive and specific for the diagnosis and several studies have reported sensitivity in the range of 80 to 92% 1 . Comparison of the sensitivities of the various nerve conduction techniques for CTS diagnosis had demonstrated t...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.