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REGIONAL ANESTHESIA

Spinal 2-Chloroprocaine for Surgery: An Initial 10-Month Experience

Department of Anesthesiology, Virginia Mason Clinic, Seattle, Washington

Spinal 2-chloroprocaine (2-CP) is currently being investigated as a short-acting alternative to lidocaine, which frequently causes transient neurologic symptoms (TNS) in surgical patients. TNS has not been reported with 2-CP in volunteers in doses ranging from 30 to 60 mg and appears to provide an excellent level of surgical anesthesia. In this retrospective study, we describe the experience with spinal 2-CP in surgical patients during its first 10 mo of clinical use at our institution. Most patients had ambulatory surgery, including 39 orthopedic, 30 general surgical, 18 gynecologic, and 34 genitourinary procedures. Chloroprocaine 30 or 40 mg, with or without fentanyl (10–20 µg), was the most common (92%) dose combination used. Mean peak block height averaged T6 to T8. The surgical procedure time was 32.3 ± 18.4 min. Time from placement of the block to the end of the surgical procedure was 53.1 ± 20.7 min. Times to ambulation and discharge were 155.1 ± 34.7 min and 207.9 ± 69.4 min, respectively. 2-CP spinal anesthesia has proven to be a safe and effective alternative to lidocaine and procaine for ambulatory surgical procedures of 1 h, with a predictable regression of block height. No patients reported TNS after surgery.

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