• The authors have no financial conflicts of interest. which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. 1 reported a case of hemopericardium following acupuncture by an unauthorized acupuncturist. This report documents the case of a female patient who had a thoracostomy and was transferred to the emergency...

Flow back along a needle track (backflow) can be a problem during direct infusion, e.g. convection-enhanced delivery (CED), of drugs into soft tissues such as brain. In this study, the effect of needle insertion speed on local tissue injury and backflow was evaluated in vivo in the rat brain. Needles were introduced at three insertion speeds (0.2, 2, and 10 mm/s) followed by CED of Evans blue a...

for a determination of soil characteristics one should have access to instruments that can measure these characteristics, including: soil penetration resistance with high accuracy. one of the accurate instruments commonly employed in soil penetration determinations is cone penetrometer. this apparatus, by measuring soil cone index at different soil depths can provide useful about information ab...

with a puncture biopsy forceps versus fine needle aspiration A 36-year-old woman presented with abdominal pain, steatorrhea, and weight loss of 8kg. A computed tomography (CT) scan showed an enlarged pancreas with the characteristics of autoimmune pancreatitis (AIP). Because of the suspicion of an autoimmune pancreatitis, she was scheduled for endoscopic ultrasound (EUS) with a 19-gauge punctur...

To the Editor, Ultrasound-guided catheterization is an essential skill for central venous catheterization and difficult peripheral vascular access. Compared with landmark techniques, it is associated with higher rates of successful cannulation and fewer complications. Safe, effective use of ultrasound, however, requires operator skill. Trainees must develop the dexterity needed to manipulate th...

INTRODUCTION Needle thoracostomy is the prehospital treatment for tension pneumothorax. Sufficient catheter length is necessary for procedural success. The authors of this study determined minimum catheter length needed for procedural success on a percentile basis. METHODS A meta-analysis of existing studies was conducted. A Medline search was performed using the search terms: needle decompre...

purpose : to assess the rate of microbial contamination of the fornix and suture needle during strabismus surgery methods : in a prospective study in khatam-al-anbia eye hospital, fornix samples and suture needles were cultured in 28 eyes of 28 patients. fornix sampling was performed before and after preparation of the eyes and the needles and remained string were transferred to culture media d...

To examine soil moisture stress, light, and genetic effects on individual needle parameters and investigate total needle contribution to productivity, individual and total needle parameter variation were quantified in 32-year-old black spruce from five crown positions from four full-sib families studied previously for drought tolerance and differential productivity on a dry and a wet site. The ...

OBJECTIVE To develop a novel approach of transseptal puncture guided by intracardiac echocardiography and to assess its efficacy. METHODS Transcatheter intracardiac echocardiography with a 9 MHz rotating transducer was performed to guide transseptal puncture in 12 patients (mean age 43.1 years, range 31-68) who underwent radiofrequency catheter ablation of left sided accessory pathways. Initi...

Germinating ascospores of Phaeocryptopus gaeumannii produce suprastomatal appressoria from which penetration pegs enter needles. Initial infection occurs between late May and early Jul and coincides with budbreak and shoot elongation. Colonization within needles is exclusively intercellular and increases continuously during Jul-May. No intracellular hyphae or haustoria were observed, but hyphae...