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INTRODUCTION: Smaller gauge atraumatic needles, such as the conical-point Whitacre and Gertie Marx needles, and the pencil-point Sprotte needle are commonly used for spinal anesthesia. However, a spinal needle with the most desirable insertion characteristics and a low occurrence of complications is yet to be identified.
Sprotte Needle. The Sprotte needle is less commonly used in medical laboratory settings compared to the Quincke and Whitacre needles. This type of needle has a atraumatic tip, which further reduces the risk of post-dural puncture headache.
Current evidences suggest that pencil-point spinal needle was significantly superior compared with cutting spinal needle regarding the frequency of PDPH, PDPH severity, and the use of EBP. In view of this, we recommend the use of pencil-point spinal needle in spinal anesthesia and lumbar puncture.
Our teaching hospital began using the Sprotte needle for spinal anaesthesia for Caesarean section following the reports of a decreased incidence of PDPH. As the 25G Whitacre needle had a similar theoretical advantage but was less expensive, this prospective, randomized, double- blind study was designed to compare the incidence of
The Sprotte spinal needle is a type of pencil-point needle similar to the Whitacre needle. It is designed with a non-cutting, atraumatic tip that minimizes tissue trauma and reduces the risk of post-operative complications.
Spinal needles in current use have different structures such as Quincke, Whitacre, Sprotte, Atraucan (atraumatic tip) and Spinoject. A pencil point spinal needle is similar to the Whitacre and Sprotte type spinal needles and is available in various sizes such as 22, 25 and 27G.
Conical-elliptical tipped needles, such as the Sprotte and Whitacre (sometimes called 'atraumatic' needles), are associated with a lower incidence of dural puncture headache than needles with cutting tips (Quincke).
As the 25G Whitacre is less expensive than the 24G Sprotte needle, this prospective, randomized, double-blind study was designed to compare the incidence of PDPH and ease of insertion of these needles in 304 ASA 1 and 2 women having elective Caesarean section under spinal anaesthesia.
We investigated these three parameters among the following I1 spinal needles: Becton-Dickinson 22 G, 25G and 27G Whitacre, 25G and 27G Quincke; B. Braun Spinocan 22 G , 25 G and 26 G Quincke; Vygon 25 G Whitacre, Portex 26 G Pencil Point and the 24 G Sprotte.
The initial problems of the Whitacre needle were still evident. Sprotte modified the needle by increasing the size of the distal orifice to combat the problems of slow CSF flow, difficulty in aspiration and resistance to injection of the local anaesthetic solution.