Subcutaneous Single Injection Digital Block with Epinephrine

• Published in: Anesthesiology Research and Practice Vol. 2012; no. 2012; pp. 110 - 113
• Main Authors: Sonohata, Motoki, Nagamine, Satomi, Maeda, Kazumasa, Ogawa, Kenji, Ishii, Hideki, Tsunoda, Kenji, Asami, Akihiko, Mawatari, Masaaki
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Limiteds 01.01.2012; Hindawi Puplishing Corporation; Hindawi Publishing Corporation; Wiley
• ISSN: 1687-6962; 1687-6970
• DOI: 10.1155/2012/487650

The aim of this study was to investigate the anesthetic effect and risk of epinephrine for subcutaneous single injection digital block. Either 3.0 mL 1.0% Lidocaine or a 3.0 mL 1.0% Lidocaine with (1 : 100,000) epinephrine was injected into the subcutaneous space at the middle point of the palmar digital crease of the 18 middle fingers of 9 healthy volunteers. The SpO2 of the fingers decreased to a maximum of 97. No subjects showed any symptoms of ischemic injury. The time to anesthesia for the fingers was significantly shorter (P<0.05), and the duration of anesthesia was significantly longer (P<0.01) for the fingers in the epinephrine group. In conclusion, a subcutaneous single injection digital blocks with 3.0 mL of 1.0% Lidocaine and (1 : 100,000) epinephrine were safe, reducing the time to the onset of anesthesia, while also markedly prolonging the anesthesia.