Stereotaxic surgery to implant guide cannulas into the rodent brain is a frequently used technique to deliver drugs to targeted brain regions in awake, freely moving animals. There are limited reports, however, of central injections in young animals, and no information on cannula implantation for drug administration into the dorsomedial hypothalamus (DMH) in young rats. Our protocol describes a simple and successful method for implanting guide cannulas in the brains of young, male Sprague-Dawley rats and outlines newly developed stereotaxic coordinates to accurately target the dorsomedial hypothalamus. •Stereotaxic surgical procedure for guide cannula implantation in the DMH in young rats.•Development of stereotaxic coordinates of the DMH in young rats.•Microinjection of drugs into the young rat brain.
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http://dx.doi.org/10.1016/j.mex.2019.07.005 | DOI Listing |
Am J Nurs
February 2025
Odaro Owen is an administrator at Zuckerberg San Francisco General Hospital and Trauma Center, David C. Mulkey is an associate professor at Grand Canyon University, Phoenix, and Aldrin Nieves is an NP at University Medical Partners/Stanford Medicine. Contact author: Odaro Owen, The authors and planners have disclosed no potential conflicts of interest, financial or otherwise.
Background: Based on a chart review of 164 patients admitted to our medical-surgical unit over 2 months and who underwent peripheral intravenous (PIV) cannula insertion, difficult intravenous access (DIVA) was found in 35% (57) of patients. Similarly, the first-attempt PIV cannula insertion failure rate was 43% (70 of 164 patients) when nurses used the traditional landmark method of visual inspection and palpation in patients with DIVA.
Purpose: The purpose of this evidence-based quality improvement (QI) project was to determine if the use of ultrasound-guided peripheral intravenous (USGPIV) cannulation would impact the rate of first-attempt PIV access among acute care adult patients with DIVA in the medical-surgical unit of an urban level 1 trauma center.
World J Urol
January 2025
Department of Urology, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 102208, China.
Purpose: The objective of this study was to explore the feasibility of using the TianJi Robot system for navigated needle positioning in the PCNL procedure in vitro.
Methods: A pig kidney with a segment of ureter was selected as the in vitro organ model. Iodine contrast agent was infused into the renal pelvis to dilate the renal pelvis and calyx to establish the in vitro hydronephrosis model.
JACC Case Rep
December 2024
Jesselson Integrated Heart Center, The Eisenberg R&D Authority, Shaare Zedek Medical Center, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
Objective: This study sought to present the endovascular approach of transcatheter aspiration using the FlowTriever (Inari Medical) aspiration system for high surgical risk patients with right-sided infective endocarditis.
Key Steps: General anesthesia and transesophageal echocardiogram guidance; ultrasonography-guided femoral vein access, preclosure sutures, and insertion of a 24-F sheath; insertion of straight 24-F aspiration cannula over a stiff wire, parked in the superior vena cava; introduction of a 20-F curved cannula inside the 24-F cannula to create a telescopic assembly; accurate positioning using the right ventricle inflow/outflow projection in biplane mode; adjustment of the curved cannula radius by sliding the inner cannula in and out inside the mother cannula; manual aspiration of the vegetation; Postaspiration transesophageal echocardiogram assessment.
Potential Pitfalls: Avoid leaflet and annular injury and account for potential embolization.
IBRO Neurosci Rep
December 2024
Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Previous investigations have revealed the role of GABAergic and serotonergic systems in the modulation of pain behavior. This research aimed to examine the effects of intracerebroventricular (i.c.
View Article and Find Full Text PDFCephalalgia
January 2025
Department of Pharmacology, University of Arizona, Tucson, USA.
Purpose: Photophobia is a common and debilitating symptom associated with migraine. Women are disproportionately affected by migraines, with a higher prevalence and more severe symptoms compared to men. This study investigated the effects of cortical spreading depression on light-aversive and dark-seeking behaviors in a rat model, with an emphasis on sex differences.
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