Trauma complexo da mão parte I: lesão vascular, lesão nervosa, lesão tendínea / Complex trauma of the hand, part I: vascular injury, nerve injury, tendon injury

O trauma da mão é uma das lesões mais frequentes nas emergências. O trauma complexo envolve lesões de múltiplas estruturas e tecidos da mão. O objetivo principal deste trabalho é esclarecer os conceitos envolvidos no estudo do paciente com trauma complexo da mão, mais especificamente, na avaliação inicial e manejo primário da mão traumatizada. Procuramos orientar a conduta dos médicos nas diversas situações clínico-cirúrgicas, que envolvem esta patologia, objetivando um julgamento rápido e adequado, interferindo positivamente no desenvolvimento natural da doença, como também nas sequelas decorrentes ao traumatismo. Nesta primeira parte, são abordados os fundamentos e conceitos considerados essenciais na abordagem do traumatismo da mão, lesão vascular, lesão nervosa e lesão tendínea, enfatizando os benefícios de uma conduta multifatorial e assertiva, abarcando as diversas disciplinas envolvidas no atendimento primário do paciente vítima de trauma (AU)

Trauma of the hand is one of the most frequent injuries in emergencies. Complex trauma involves injuries to multiple tissues and structures of the hand. The main purpose of this work is to clarify the concepts involved in the study of patients with complex trauma of the hand, more specifically, the initial assessment and primary management of the traumatized hand. We seek to guide the conduct of physicians in different clinical and surgical situations involving this pathology. Aiming for a quick and proper judgment, interfering positively with the natural development of the disease and also with sequelae resulting from trauma. In this first part the article discusses the fundamentals and concepts considered essential in the management of hand trauma, vascular injury, nerve injury and tendon injury, emphasizing the benefits of a multifactorial and assertive approach, covering the various disciplines involved in primary care of the trauma patient (AU)

1H-MRS study on the metabolites of first dorsal interossei / 法医学杂志

OBJECTIVE@#To estimate the application of prognosis evaluation of ulnar nerve injury by 1H-magnetic resonance spectroscopy (1H-MRS).@*METHODS@#The metabolites of first dorsal interossei (FDI) of two hands from 12 healthy volunteers and 1 volunteer with complete ulnar nerve injury were detected by 1H-MRS and the data were statistically analyzed.@*RESULTS@#For the FDI of healthy adults, the female peaks area of extra-myocellular lipids (EMCL) was higher than the male (P < 0.05); There was no significant difference in Cho, Cr and intra-myocellular lipids (IMCL) between male and female (P > 0.05); There was no significant difference in all the peaks area between the left and right hand (P > 0.05). The EMCL peak of the injury side was higher than that of the healthy side, and the area of FDI was reduced in the volunteer with ulnar nerve injury.@*CONCLUSION@#Noninvasive and quantitative detection of 1H-MRS may be valuable for prognosis evaluation of peripheral nerve injury.

Seguridad en anestesia loco-regional (ALR): complicaciones de los bloqueos nerviosos periféricos / Security loco-regional anesthesia (ALR): complications of peripheral nerve blocks

Las distintas técnicas de anestesia loco-regional (ALR) muestran una popularidad creciente, existiendo un amplio consenso acerca de sus ventajas sobre la anestesia general. Sin embargo, como en todo acto médico, pueden presentarse complicaciones, algunas de ellas potencialmente graves, que es importante conocer, detectar y tratar adecuadamente. Afortunadamente, la incidencia de complicaciones mayores asociada a estas técnicas, de acuerdo a los trabajos de distintos autores es baja. En el presente trabajo se describen algunas de ellas, aportando recomendaciones prácticas para disminuir su incidencia.

Comparisons among different reference values of nerve conduction velocity in forensic appraisal / 法医学杂志

OBJECTIVE@#To provide the evidences for the choice of normal reference value of nerve conduction velocity (NCV) in clinical forensic appraisal.@*METHODS@#One hundred and fourteen cases with normal peripheral nerve and 155 cases with injured peripheral nerve were collected. The NCV of homonymous nerves in two limbs were detected. In the normal cases, the NCV of the left limbs were used as the normal reference values. The NCV of the right limbs were compared with that of left limbs, the commendatory normal reference values from Beijing Xiehe Hospital and Shanghai Huashan Hospital. In the injured cases, the results of NCV in injuried limbs were compared with the results of healthy limbs and the reference values from Beijing Xiehe Hospital and Shanghai Huashan Hospital.@*RESULTS@#In the normal group, there was no statistical difference between the left and right limbs in NCV results of homonymous nerve (P > 0.05). The false positive rates (FPR) were 0, 11.4% and 5.2% for three choices normal reference respectively. The false negative rates (FNR) were 0, 9.7% and 12.3% for three choices normal reference in injuried group. Thee false negative cases were all slight nerve injury.@*CONCLUSION@#The reference value of self-control method could decrease the FPR of normal cases and FNR of injured cases. In clinical forensic appraisal of peripheral nerve, the nerve condition study results from healthy homonymous nerve should be regarded as the reference value at first, supplemented by reference values from clinical labs.