BACKGROUND AND AIMS There are limited data on the differences in diagnostic yield between 25-gauge and 22-gauge EUS-FNA needles. This prospective study compared the difference in diagnostic yield between a 22-gauge and a 25-gauge needle when performing EUS-FNA. METHODS Forty-three patients with intraluminal or extraluminal mass lesions and/or lymphadenopathy were enrolled prospectively. EUS-F...

Purpose: To report our experience with computed tomography (CT)-guided coaxial needle biopsy of intrathoracic lesions by different approaches. Material methods: Medical records of 100 patients who underwent CT-guided biopsy of intrathoracic lesions were evaluated retrospectively. A coaxial needle technique was used in all patients; an 18-gauge needle was used for transsternal penetration, throu...

INTRODUCTION The risk of postdural puncture headache following lumbar puncture can be reduced by choosing a blunt spinal needle or by using a smaller needle diameter. Reports indicate that lumbar puncture practiced outside of the anaesthetic discipline does not adhere to the current level of evidence. To examine the practice among haematologists in Denmark, we performed a national survey. In ad...

OBJECTIVES To design microneedles that minimize pain, this study tested the hypothesis that microneedles cause significantly less pain than a 26-gauge hypodermic needle, and that decreasing microneedle length and the number of microneedles reduces pain in normal human volunteers. METHODS Single microneedles with lengths ranging from 480 to 1450 microm, widths from 160 to 465 microm, thickness...

BACKGROUND Wrist blockage of median and ulnar nerves before treatment of palmar hyperhidrosis with botulinum toxin (BTX-A) reduces discomfort and improves accuracy of BTX-A injections, but can be associated with mechanical/chemical injury. OBJECTIVES We sought to compare locoregional anesthesia of median and ulnar nerves using conventional 25-G x 0.50 x 13 mm gauge needle with short 30-G x 0....

Postdural puncture headache (PDPH) has been a problem for patients, following dural puncture, since August Bier reported the first case in 1898. His paper discussed the pathophysiology of low-pressure headache resulting from leakage of cerebrospinal fluid (CSF) from the subarachnoid to the epidural space. Clinical and laboratory research over the last 30 years has shown that use of small-gauge ...

Conventional transbronchial needle aspiration (TBNA) using 19-gauge needles can obtain larger histological specimens for hilar-mediastinal diagnosis. A new 19-gauge eXcelon needle was introduced in Taiwan in July 2012. We prospectively enrolled patients with hilar-mediastinal lesions and pathology results of suspected benign origin or lymphoproliferative processes, to perform TBNA using a 19-ga...

HYPOTHESIS The incidence of sentinel node (SN) metastases from invasive breast cancer might be affected by the technique used to obtain biopsy specimens from the primary tumor before sentinel lymph node dissection. DESIGN Prospective database study. SETTING The John Wayne Cancer Institute. PATIENTS AND METHODS We identified 663 patients with biopsy-proven invasive breast cancer who underw...

Old BS 1619 2 ml glass insulin syringe (U20 insulin) + 26 gauge, 0-5 inch needle 1-26 (U20), (Everett) 0-063 2-52 (U40) New BS 1619 1 ml glass insulin syringe (UIOO insulin) + 26 gauge, 0-5 inch needle (Rand Rocket) 0-051 5 1 (UIOO) New BS 1619 0 5 ml glass insulin syringe (UI00 insulin) + 26 gauge, 0-5 inch needle (Rand Rocket) 0-05 5 (U100) BD Plastipak 1 ml plastic disposable syringe (U100 i...