shunting


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shunting

The bypassing of alveoli by blood circulating through the lungs.
 
Aetiology
Atelectasis, portal hypertension, small airway obstruction, smoke inhalation injury.
 
Diagnosis
Hypoxaemia that only partially improves with high inspired O2 concentrations (e.g., arterial O2 tension/PaO2 < 200 mm Hg for inspired O2 concentration FIO2 = 100%).

shunting

Lung physiology The bypassing of alveoli by blood circulating through the lungs Etiology Atelectasis, portal hypertension, small airway obstruction, smoke inhalation injury Diagnosis Hypoxemia that only partially improves with high inspired O2 concentrations–eg, arterial O2 tension/PaO2 < 200 mm Hg for inspired O2 concentration FIO2 = 100%

shunting

A condition in which blood, by going through an abnormal pathway or bypass, does not travel its normal route. It may occur when an arteriovenous fistula forms or in congenital anomalies of the heart in which the blood passes from the right atrium or ventricle directly to the left atrium or ventricle respectively, through a defect in the wall (septum) that normally separates the atria and ventricles.
Synonym: blood shunting
References in periodicals archive ?
However, because INPH is responsible for less than 1% of all dementias, improvement in mental status as a result of VP shunting may be minimal (Miele, Bendok, Bloomfield, Ondra, & Bailes, 2004).
During shunting, that acid is delivered to the stomach, where it's harmless or beneficial, Farmer theorizes.
Pseudocysts have been reported to develop three weeks to five years after shunt placement, which is consistent with this patient's presentation eight weeks after the shunting procedure.
As a cause of type I respiratory failure, shunting is associated with pneumonia and atelectasis.
After a permanent shunting device has been inserted and the patient has been discharged, it is imperative for patients and family members to be taught how to identify possible postoperative complications of shunts, such as infection and drainage from the incision.
Our study confirmed the previous widespread impression of neurosurgeons that spina bifida defects closer to the head correspond to a higher incidence of shunting," said Dr.
Hicks finds that surgery to prevent alligators from shunting blood makes no difference in their first-year growth.
Intraluminal shunting has become one of the cornerstones of the new era of beating heart techniques for coronary bypass surgery.
The initial success of ventriculo-atrial shunting was complicated by blood-borne infections which spread to the kidneys and presented significant problems to renal function (shunt nephritis) as well as the need for frequent surgical procedures to lengthen the tubing.
In such "beating heart" surgeries, Research Medical's new disposable devices will address the clinical challenges associated with this technique, including reducing the bleeding of coronary arteries after the bypass incision, dispersing blood from the grafting site to improve visualization during surgery, elevating and stabilizing the heart to facilitate fine suturing in a beating environment and, finally, shunting heart muscle-sustaining blood to portions of the heart beyond the blood vessel grafting site.
Contract notice: Procurement of 2 heavy shunting with eba approval.
1) Hypoxemia is another serious consequence that may result from acute right-to-left shunting through a previously dormant atrial septal defect or patent foramen ovale.