نتایج جستجو برای: cannula
تعداد نتایج: 5635 فیلتر نتایج به سال:
OBJECTIVE To compare the outcomes of preterm infants with respiratory distress initiated on either Heated Humidified High Flow Nasal Cannula or Nasal Continuous Positive Airway Pressure as a primary mode of respiratory support. STUDY DESIGN Prospective observational cohort study. SETTING Tertiary care level III neonatal intensive care unit. PARTICIPANTS 88 preterm infants between 28 to 34...
Concentric tube continuum devices, known as active cannulas, consist of multiple pre-curved elastic tubes that extend telescopically and rotate axially with respect to each other. Through these degrees of freedom, an active cannula presents a dexterous and versatile “tentacle-like” mechanism for accessing targets in minimally invasive surgery. Deploying an active cannula in a practical surgical...
With the use of cell replacement therapies as a realistic prospect for conditions such as Parkinson's and Huntington's diseases, the logistics of the delivery of cell suspensions to deep brain targets is a topic for consideration. Because of the large cannulae required for such procedures, we need to consider the behavior of cell suspensions within the cannulae if we are to ensure that the inje...
INTRODUCTION Convection-enhanced delivery (CED) has been shown to be an effective method of administering macromolecular compounds into the brain that are unable to cross the blood-brain barrier. Because the administration is highly localized, accurate cannula placement by minimally invasive surgery is an important requisite. This paper reports on the use of an angiographic c-arm system which e...
nal is determined by puncturing the caudal pouch of the shoulder joint with a 5 cm long, 0.6-mm cannula. This cannula is inserted in the direction of the arthroscope tip.The working cannula with trocar is then inserted along the puncture canal into the shoulder joint. This triangulation technique has successfully been used for arthroscopic surgery in the shoulder joint, in particular for the tr...
Biventricular support with dual rotary ventricular assist devices (VADs) has been implemented clinically with restriction of the right VAD (RVAD) outflow cannula to artificially increase afterload and, therefore, operate within recommended design speed ranges. However, the low preload and high afterload sensitivity of these devices increase the susceptibility of suction events. Active control s...
OBJECTIVES For needle insertion and guidewire placement during central venous catheterization, a thin-wall introducer needle technique and a cannula-over-needle technique have been used. This study compared these two techniques regarding the success rates and complications during internal jugular vein catheterization. DESIGN Prospective, randomized, controlled study. SETTING A university-af...
The rise of heart failure in the setting shortage donor had brought to emergence development left ventricular assist device (LVAD). However, patients are still encountering severe complications such as stroke and thrombosis due hemodynamic changes. This study aimed compare characteristic between standard spiral LVAD outflow cannula. Two different anastomosis sites (2cm 3cm) from sino-tubular ju...
Objective. One limitation of ultrasound-guided vascular access is the technical challenge of visualizing the cannula during insertion into the vessel. We hypothesized that the use of an echogenic vascular cannula (EC) would improve visualization when compared with a nonechogenic vascular cannula (NEC) during real-time ultrasound-guided subclavian vein (SCV) cannulation in the ICU. Material and ...
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