• T Tsutsui, K Muranaka, and K Setoyama.
• Department of Anesthesia, Saga National Hospital.
• Masui. 2000 Sep 1;49(9):970-5.

AbstractWe analyzed retrospectively the technical and clinical consequences of combined spinal-epidural anesthesia by needle-through-needle approach over the last two years. A Tuohy-type 18-gauge epidural needle (Perican; B. Braun Co.) and long pencil-pointed 27-gauge spinal needle (Whitacre; Becton-Dikinson Co.) were selected. Spinal anesthesia was administered with 0.5% tetracaine. A total of 485 anesthesia cases included 144 cases for lower abdominal, 193 cases for gynecological and 148 cases for orthopedic surgeries. The successful subarachnoid puncture with only one attempt was recorded in 89% of abdominal, 71% of gynecological and 72% of orthopedic cases. On the other hand, in three (0.6%) cases even with several attempts, the puncture was not possible. Inadvertent dural puncture and subarachnoid catheterization occurred in six (1.2%) and four (0.6%) cases, respectively. Inadequate spinal anesthesia was supplemented with epidural anesthesia in 13% of abdominal, 21% of gynecological and 7% of orthopedic cases. No serious complication occurred. We conclude that this needle-through-needle approach facilitates subarachnoid puncture with an ultra-fine spinal needle and subsequent epidural catheterization serves for supplemental and post-operative analgesia unless inappropriate subarachnoid indwelling occurs.

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