Textbook of Critical Care

Glomerulonephritis

Over half of all critically ill patients develop some degree of acute kidney injury (AKI), and nearly 5% require renal replacement therapy (RRT). For those patients with severe AKI requiring RRT, mortality can be as high as 70%, and up…

Contrast-induced acute kidney injury

Iodinated contrast agents, which are administered intravascularly for medical imaging, are widely used pharmaceutical agents: more than 80 million doses were estimated to be administered annually over a decade ago. Although vital for diagnostic and therapeutic purposes, their use can…

Urinary tract obstruction

A patent urinary tract is necessary for optimal kidney function. Under normal circumstances, urine passes unimpeded from the renal pelvises to the tip of the urethra. Obstruction can occur anywhere along this pathway and may lead to both acute and…

Acute kidney injury

Acute kidney injury (AKI) is recognized as one of the most serious complications in critically ill patients. It is strongly associated with higher short- and long-term mortality, increased resource utilization, and a higher risk for the development of chronic kidney…

Fluid and volume therapy in the ICU

The goals of fluid administration are to optimize tissue oxygenation by augmenting intravascular volume, improving left ventricular preload, and increasing cardiac output. This chapter reviews the timing and considerations for choice of therapy in volume repletion and the effects of…

Advanced techniques in blood purification

Introduction During the last decade, several blood purification techniques have been developed. Blood purification techniques are extracorporeal treatments that can either be combined with renal replacement therapy (RRT) or used as standalone methods. Their common objective is to remove from…

Water metabolism

Water is the body’s most abundant component. Without ingesting sufficient fresh water, humans can survive for just a few days. Ingested water, plus water produced endogenously, must be appropriately excreted to maintain homeostasis. In the human body, water has many…

Biomarkers of acute kidney injury

Epidemiology of acute kidney injury in the intensive care unit Acute kidney injury (AKI) is a significant problem in intensive care unit (ICU) patients and carries a high mortality rate and long-term morbidity. AKI is defined according to the Kidney…

Clinical assessment of renal function

Five to fifteen percent of patients in intensive care units (ICUs) experience acute deterioration in renal function. , Renal dysfunction substantially adds to the morbidity and mortality of critically ill patients. Moreover, changes in renal function directly affect drug clearance.…