Articles: nerve-block.
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Every approach to the sciatic nerve in the buttocks currently requires the identification of pelvic bone structures. The large size of the nerve and its constant trajectory suggest that a simplified approach is possible. ⋯ Because of the intimate relationship of the sciatic nerve to the bony pelvis, the position of this nerve in the buttocks is constant. Caudal to the piriformis muscle the nerve runs vertically between the ischium and the greater trochanter. The location of this narrow passage, not the buttocks' size, determines the position of the nerve. While the size of the buttocks is variable among different individuals and in the same individual at different stages of adult life, the relationship of the sciatic nerve to the pelvis is constant throughout life. Using this relationship to our advantage, a sciatic block in adults can be accomplished at 10 cm lateral to the intergluteal sulcus without a need for identification of buried structures or line tracings.
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To evaluate the sensory distribution, motor block and the clinical efficacy of the infraclavicular block by the coracoid approach. ⋯ Infraclavicular block by the coracoid approach provides an extensive sensory distribution with an excellent tourniquet tolerance. We conclude that this approach provides highly consistent brachial plexus anesthesia for upper extremity surgery.
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Rev Esp Anestesiol Reanim · Mar 2003
[Lateral popliteal block: a modification of anatomical references].
To study the efficacy of a lateral approach in performing a sciatic nerve block at the popliteal fossa using modified anatomical references: the intersection of the groove between the lateral vastus and biceps femoris muscles and the axis of the femur, which passes through the upper vertex of the popliteal fossa. ⋯ The proposed approach is easy to implement, involves no remarkable complications, and is particularly useful in patients who have difficulty taking a prone decubitus position.
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Rev Esp Anestesiol Reanim · Mar 2003
[Platelet count and hematic punction with epidural block in obstetrics].
The reference value for and the significance of mild thrombocytopenia associated with pregnancy remain undetermined, and therefore the timing, validity and meaning of coagulation tests before a regional block may vary. ⋯ A complete clinical history must be obtained during the anesthetist's interview with the patient in the last month of pregnancy, and detailed information on the risk of regional blocks during labor must be offered. When blood tests at the time of the interview are normal and the clinical history indicates low risk, repeating tests immediately before the block is unjustified, provided the clinical situation does not change.