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A small tube that can be inserted into a body cavity, duct, or vessel.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a hollow tube with a blunt end designed for intro-ducing into the human (or animal) body drugs or X-ray contrastmedia, restoring the patency of the respiratory tract, or with-drawing fluids from the body cavities. It is also used for anatomi-cal, pathologicoanatomic, and laboratory studies. Cannulas aremade of metal, glass, or plastic.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
A significant correlation was found between bleeding (p<0.020) and horizontal incision and between accidental decannulation (p<0.001) and vertical incision when a comparison was made between early complications and skin incision.
Outcome measures noted in terms of successful decannulation, morbidity or mortality.
However, a vast majority of the minor and major complications except accidental decannulation and pneumothorax were not found to be significantly high when analyzed individually.
Decannulation was achieved in the PICU (n=4) and after PICU discharge (n=4).
The current approach to TT weaning and decannulation is not straightforward (Christopher, 2005), varies in local and community practice, and results in varied patient outcomes (Ceriana et al., 2003; Johnson, 2010; Mestral et al.
Data including the age, sex, cause for intubation and tracheostomy, days of intubation/ventilation, APACHE II Score, duration of procedure, lowest intraprocedural SpO, lowest intraprocedural BP, intraprocedural complications such as bleeding, loss of airway for more than 20 seconds, subcutaneous emphysema, tracheal ring fracture and paratracheal placement of the tube; postprocedural complications such as accidental decannulation, pneumothorax, hemorrhage, stomal granulation, infection of stoma or a new lung infiltrate within 48hours of tracheostomy; duration of tracheostomy; planned decannulation and mortality were recorded.
The lack of workup for 4-drug resistant hypertension after our patient's ECMO decannulation, or during her single prenatal visit, significantly increased mortality risks.
Patients in the simvastatin group took simvastatin 20 mg orally daily during two perioperative periods: those who received simvastatin for 5~7 days before the planned operation [11] and from the 2nd day after decannulation until the 7th postoperative day.
The presence of a specialized team with a language-speech pathologist showed important results in Montreal, with lower number of calls due to complications, such as tube obstruction; reduction of decannulation time; increase of patients undergoing decannulation from 59.4% to 68.5%, and increase in the placement of speaking valves from 19.4% to 67.4% [25].
The fourth part contained details about tracheostomy such as cause, level of tracheostomy, problems faced, postoperative complications and their managements, total duration of procedure, date of decannulation, if death occurred, then cause of death, and duration of survival time and voice recovery time.
(37) Simlarly, botulinum toxin injections can facilitate capping trials of the tracheotomy tube and increase the probability of decannulation (removal of the tracheotomy tube).