sage for CICVmanagement. As in the Vortexmodel, this prompts the operator to attempt both supraglottic airway andmask ventilation, then if unsuccessful to move on to surgical intervention. Prompting surgical cricothyroidotomy over cannula cricothyroidotomy is consistentwith the 4thNational Audit Project’s finding of high failure rates for cannula cricothyroidotomy in adults. The summary phrase ...

The role of nucleus tractus solitarius (NTS) in cardiovascular system regulation is controversial. On the other hand, the problem of hypertension in diabetic animals is the subject of many research programs. The aim of present study was to determine whether inactivation of NTS could affect blood pressure and heart rate in diabetic rats. To this end, stereptozotocin induced diabetic rats were an...

Background: Intravenous catheterization is a routine technique in medical centers which can cause diverse problems such as thrombophlebitis. Objective: This study aimed to resolve replacement scheduling and proper cannula diameter and position issues for intravenous catheters. Methods: In this 2015 experimental cohort study, 232 hos...

The effects of dl-cathinone on milk intake and motor activity were investigated in bottle- and cannula-fed rats. Acute injections of cathinone produced dose-dependent increases in activity in both groups but only produced decreased intake in bottle-fed rats. With chronic injections, tolerance to the suppression of intake developed in the bottle-fed group, accompanied by decreased activity. Afte...

Here we demonstrate widefield (field diameter = 200 μm) fluorescence microscopy and video imaging inside the rodent brain at a depth of 2 mm using a simple surgical glass needle (cannula) of diameter 0.22 mm as the primary optical element. The cannula guides excitation light into the brain and the fluorescence signal out of the brain. Concomitant image-processing algorithms are utilized to conv...

Although rare, inadvertently dislodged cannula can occur during cataract surgery. We report two cases of cannula-associated ocular injury during stromal hydration of the main corneal incision despite the use of Luer-lock syringes. Case 1 suffered from an initially occult intraocular injury which led to a delayed presentation of vitreous prolapsing into the anterior chamber, presumed posterior c...

BACKGROUND Controversy surrounds the safety and practicality of the retrograde percutaneous translaryngeal tracheostomy (Fantoni procedure) compared with other percutaneous methods. METHODS We used the Fantoni tracheostomy for 245 patients in our intensive care unit (ICU) over a period of 3 years 6 months and conducted a prospective analysis. RESULTS We are able to report a low incidence of...

Recently I noticed with surprise, during extracapsular cataract surgery, that cortex was retreating from the anterior port of my simcoe cannula during aspiration, instead of being drawn towards it. On closely examining the cannula, I discovered that the infusion entering the luer connection was plumbed to exit at the anterior port, while the syringe was vigorously aspirating anything near the l...

A method is described by which a single shaft multiwire microelectrode can be fabricated efficiently. The resulting electrode can be attached to a commercial microdrive and used for single neuronal unit recording from one or more tracks in deep brain structures of anesthetized or awake animals. The electrode consists of a 30 gauge stainless steel cannula through which multiple strands of 13 mic...

Purpose. Formation of a tracheoinnominate artery fistula (TIF) and consecutive hemorrhage is a rare and life-threatening complication with high mortality. Warning symptoms can be absent. The current literature contains only few considerations for misleading signs, especially in cases where the contact between the tissue and the cannula is tight. Method and Results. We report two cases of life-t...