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A comparison of different methods of lubrication of glass syringes used to identify the epidural space
Author(s) -
LEIMAN B. C.,
KATZ J.,
SALZARULO H.,
WARTERS R. D.,
BUTLER B. D.
Publication year - 1988
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/j.1365-2044.1988.tb09023.x
Subject(s) - plunger , medicine , epidural space , saline , syringe , lubrication , anesthesia , biomedical engineering , composite material , materials science , psychiatry
Summary Measurement of loss of resistance in glass syringes is a method widely used to locate the epidural space in epidural anaesthesia. Static and dynamic forces were measured under four experimental conditions in new glass syringes: unpolished, dry; polished, dry; unpolished, saline lubricated; and polished, saline lubricated. The unpolished saline lubricated syringes had a mean (SD) static force of 53.18 (15.0) g and dynamic force of 40.88 (15.2) g. These values were significantly greater than for polished dry syringes where the values were 5.27 (2.1) g and 4.38 (0.94) g, respectively. The results show that the least amount of resistance to plunger movement is obtained by dry polishing glass syringes.