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Dwell Time

In peritoneal dialysis, the amount of time dialysis solution remains in the patient's abdominal cavity between exchanges.

PubMed Health Glossary
(Source: NIH - National Institute of Diabetes and Digestive and Kidney Diseases)

What works? Research summarized

Evidence reviews

Mantenimiento de cateteres venosos perifericos durante mas de 4 dias: en busca de la mejor evidencia [Peripheral venous catheter dwell time for more than 4 days: in search of the best evidence]

Bibliographic details: Juve Udina M E, Carbonell Ribalta M D, Soldevila Casas R M, Campa Pulido I, Juarez Vives M.  Mantenimiento de cateteres venosos perifericos durante mas de 4 dias: en busca de la mejor evidencia [Peripheral venous catheter dwell time for more than 4 days: in search of the best evidence]. Enfermeria Clinica 2003; 13(4): 208-216

Ureteral Stents: A Review of Clinical Effectiveness and Guidelines [Internet]

This report focuses on evidence for the clinical effectiveness of short-term ureteral stenting in patients undergoing stone removal or kidney transplant, long-term ureteral stenting in patients with retroperitoneal carcinoma or obstructed uropathy, and evidence-based guidelines for long-term use of ureteral stents.

Osteoarthritis: Care and Management in Adults

Osteoarthritis refers to a clinical syndrome of joint pain accompanied by varying degrees of functional limitation and reduced quality of life. It is the most common form of arthritis, and one of the leading causes of pain and disability worldwide. The most commonly affected peripheral joints are the knees, hips and small hand joints. Although pain, reduced function and effects on a person’s ability to carry out their day-to-day activities can be important consequences of osteoarthritis, pain in itself is of course a complex biopsychosocial issue, related in part to person expectations and self-efficacy, and associated with changes in mood, sleep and coping abilities. There is often a poor link between changes on an X-ray and symptoms: minimal changes can be associated with a lot of pain and modest structural changes to joints oftencan occur without with minimal accompanying symptoms. Contrary to popular belief, osteoarthritis is not caused by ageing and does not necessarily deteriorate. There are a number of management and treatment options (both pharmacological and non-pharmacological), which this guideline addresses and which offer effective interventions for control of symptoms and improving function.

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Summaries for consumers

Catheter lock treatments for catheter‐related infections in children with cancer

Oncology patients require frequent venous access for their cancer treatment. Therefore, more permanent catheters (central venous catheters (CVCs)) are often inserted. However, these can become infected and once the CVC becomes occupied by bacteria it is difficult to eradicate these micro‐organisms. Lock solutions are medicines that are placed in the CVC and left to dwell for a certain time period. These locks only treat the CVC and high concentrations can be achieved. In this review we investigated the effect of lock treatments on CVC‐related infections. We identified three studies: two investigating the effect of urokinase lock treatments in addition to antibiotics and one study investigating the effect of ethanol locks in addition to antibiotics. We could detect no effect of urokinase or ethanol locks. However, the groups were very small. A similar study with a larger participant population might have different results.

Effectiveness of dressings and other devices that are used to keep a peripheral venous catheter in place

Most people admitted to an acute/emergency hospital ward require the insertion of a peripheral venous catheter/cannula (PVC), often known as a 'drip' or 'IV'. A PVC is a flexible, hollow, plastic tube that is inserted in a peripheral vein, most commonly in the hand, or lower arm. Up to half of all PVCs stop working before treatment has finished and a new one has to be inserted. This is uncomfortable for the patient and costly for the healthcare system. One of the reasons PVCs fail, is that the products used to hold them in place are not fully effective, and allow the PVC to move around. This movement causes redness, inflammation and even blood infections. The PVC can become blocked, or leak into the surrounding tissues, or even fall out as a consequence of the movement. The function of PVC dressings and/or securement devices is to keep the PVC in the vein, and to cover the insertion site so that it is kept dry and clean and protected from infection.

Terms to know

A hollow area or hole. It may describe a body cavity (such as the space within the abdomen) or a hole in a tooth caused by decay.
The process of filtering the blood when the kidneys are not able to cleanse it.
Dialysis Solution
A cleansing liquid used in the two major forms of dialysis - hemodialysis and peritoneal dialysis. Dialysis solution contains dextrose, a sugar, and other chemicals similar to those in the body. Dextrose draws wastes and extra fluid from the body into the dialysis solution.
An attachment to the hemodialysis machine. The dialyzer has two sections separated by a semipermeable membrane. One section holds dialysis solution. The other holds the patient's blood.
Peritoneal Dialysis
Filtering the blood by using the lining of the abdominal cavity, or belly, as a semipermeable membrane.

More about Dwell Time

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Other terms to know: See all 5
Cavity, Dialysis, Dialysis Solution

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