Comparison of Different Local Anesthetic Volumes for Saddle Block Anesthesia in Ambulatory Surgery: A Prospective Randomized Trial

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Zengin E. N., Yalniz K. Y., Başkan S., Ozturk L.

CUREUS, cilt.15, sa.6, ss.1-8, 2023 (ESCI)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 6
  • Basım Tarihi: 2023
  • Doi Numarası: 10.7759/cureus.41063
  • Dergi Adı: CUREUS
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI)
  • Sayfa Sayıları: ss.1-8
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Ankara Yıldırım Beyazıt Üniversitesi Adresli: Evet

Özet

Abstract

Introduction: Saddle block anesthesia (SBA) is a frequently preferred method for ambulatory anorectal

surgery. This study aimed to observe the effects of two different dose SBAs on discharge times and

perioperative block characteristics in patients undergoing ambulatory anorectal surgery.

Methods: The study was conducted as a prospective, randomized controlled study. Patients over the age of

18 who were scheduled for ambulatory anorectal surgery and had American Society of Anaesthesiologists

(ASA) physical status I and II were included in the research. Patients were divided into two groups: 5 mg

hyperbaric bupivacaine 0.5% (Group I; n=34) and 3 mg hyperbaric bupivacaine 0.5% (Group II; n=34). The

primary outcome was discharge time. Characteristics of the spinal block like time to reach S4 blockade,

maximum blocked dermatome, regression time of sensorial, first analgesic need time, voiding time,

mobilization time, and side effects were the secondary outcomes.

Results: Sixty-eight patients were included in the study. The groups were similar in terms of demographic

and surgical characteristics (p > 0.05). In Group II, S4 sensory dermatome blockade time was statistically

longer (p: 0.007) and the time to the disappearance of the sensory block was statistically shorter (p < 0.001).

Also, voiding time and discharge times were statistically shorter in Group II (p: 0.049, p < 0.001,

respectively).

Conclusion: SBA provided adequate anesthesia, and the complication rates were limited. Saddle block can be

considered an advantageous technique because of conditions that adversely affect recoveries, such as

postoperative cognitive problems, nausea, and vomiting due to general anesthesia. In addition, better

recovery results and optimal surgical condition with 3 mg hyperbaric bupivacaine in our study suggest that

this dose may be a good alternative.