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DELIRIUM, med.jur. A disease of the mind produced by inflammations, particularly in fevers, and other bodily diseases.
     2. It is also occasioned by intoxicating agents.
     3. Delirium manifests its first appearance "by a propensity of the patient to talk during sleep, and a momentary forgetfulness of his situation, and of things about him, on waking from it. And after being fully aroused, however, and his senses collected, the mind is comparatively clear and tranquil, till the next slumber, when the same scene is repeated. Gradually the mental disorder becomes more intense, and the intervals between its returns of shorter duration, until they are scarcely, or not at all perceptible. The patient lies on his back, his eyes, if open, presenting a dull and listless look, and is almost constantly talking to himself in a low, muttering tone. Regardless of persons or things around him and scarcely capable of recognizing them when aroused by his attendants, his mind retires within itself to dwell upon the scenes and events of the past, which pass before it in wild and disorderly array, while the tongue feebly records the varying impressions, in the form of disjointed, incoherent discourse, or of senseless rhapsody. In the delirium which occurs towards the end of chrome diseases, the discourse is often more coherent and continuous, though the mind is no less absorbed in its own reveries. As the disorder advances, the voice becomes more indistinct, the fingers are constantly picking at the bed-clothes, the evacuations are passed insensibly, and the patient is incapable of being aroused to any further effort of attention. In some cases, delirium is attended with a greater degree of nervous and vascular excitement, which more or less modifies the abovementioned symptoms. The eyes are open, dry, and bloodshot, intently gazing into vacancy, as if fixed on some object which is really present to the mind of the patient; the skin is hotter and dryer; and he is more restless and intractable. He talks more loudly, occasionally breaking out into cries and vociferation, and tosses about in bed, frequently endeavoring to get up, though without any particular object in view." Ray, Med. Jur. Sec. 213.
     4. "So closely does delirium resemble mania to the casual observer, and so important is it that they should be distinguished from each other, that it may be well to indicate some of the most common and prominent features of each. In mania, the patient recognizes persons and things, and is perfectly conscious of, and remembers what is passing around him. In delirium, he can seldom distinguish one person or thing from another, and, as if fully occupied with the images that crowd upon his memory, gives no attention to those that are presented from without. In delirium, there is an entire abolition of the reasoning power; there is no attempt at reasoning at all; the ideas are all and equally insane; no single train of thought escapes the morbid influence, nor does a single operation of the mind reveal a glimpse of its natural vigor and acuteness. In mania, however false and absurd the ideas may be, we are never at a loss to discover patches of coherence, and some semblance of logical sequence in the discourse. The patient still reasons, but he reasons incorrectly. In mania, the muscular power is not perceptibly diminished, and the individual moves about with his ordinary ability. Delirium is invariably attended with great muscular debility; and the patient is confined to bed, and is capable of only a momentary effort of exertion. In mania, sensation is not necessarily impaired and, in most instances, the maniac sees, bears, and feels with all his natural acuteness. In delirium, sensation is greatly impaired, and this avenue to the understanding seems to be entirely closed. In mania, many of the bodily functions are undisturbed, and the appearance of the patient might not, at first sight, convey the impression of disease. In delirium, every function suffers, and the whole aspect of the patient is indicative of disease. Mania exists alone and independent of any other disorder, while delirium is only a symptom or attendant of some other disease. Being a symptom only, the latter maintains certain relations with the disease on which it depends; it is relieved when that is relieved, and is aggravated when that increases in severity. Mannia, though it undoubtedly tends to shorten life, is not immediately dangerous; whereas the disease on which delirium depends, speedily terminates in death, or restoration to health. Mania never occurs till after the age of puberty; delirium attacks all periods alike, from early childhood to extreme old age." Id. Sec. 216.
     5. In the inquiry as to the validity of testamentary dispositions, it is of great importance, in many cases, to ascertain whether the testator labored under delirium, or whether he was of sound mind. Vide Sound mind; Unsound mind; 2 Addams, R. 441; 1 Addams, Rep. 229, 383; 1 Hagg. R. 577; 2 Hagg. R. 142; 1 Lee, Eccl. R. 130; 2 Lee, Eccl. R. 229; 1 Hag. Eccl. Rep. 256.

References in periodicals archive ?
Over the next nine years, he was hospitalized multiple times and experienced his first episodes of hospital-induced delirium.
Bantas experience with delirium is more common and has longer-lasting effects than was once believed.
Part of an interdisciplinary group leading UCSF efforts to better prevent and manage delirium in the ICU, Schell-Chaple who is also associate faculty at UCSF School of Nursing, says, It used to be that we associated delirium only with the hyperactive form, but one important finding of the studies is that hypoactive delirium where patients are inattentive or unresponsive is more common and underdiagnosed.
Given that up to 60 % of people aged over seventy years admitted to hospital develop a delirium (Inouye et al 1999; Cole 2004, Olofsson et al 2005), this GNPC audit suggests that in the face of the lack of an active prevention and management program, this suggests that at a minimum, 75% of all deliriums, incident and prevalent, occurring in the acute care setting of this facility were not recognised.
As part of this scope they have developed an expertise in the diagnosis and clinical management of delirium under the mentorship of a visiting geriatrician.
In leading an improvement in the care of patients suffering from delirium the GNPCs investigated local prevalence data using an audit study by Speed et al (2007) for comparative values in the Australian health system.
As a rule deliriums are, when contrasted with dementia, more than symptomatically treatable and may in fact be reversible.
Sundowning or nocturnal delirium can be defined as a marked increase in confusion, disorientation and possibly agitation in an elderly or severely cognitively impaired subject at sunset or when daylight is reduced.
A number of studies have looked to account for nocturnal delirium in various ways including in terms of disturbance in circadian rhythm and/or changes in sleep cycles.
DELIRIUM is very common and can be very scary for patients and their relatives.
Delirium is defined as a temporary state of confusion which could be constant or fluctuating.
The conditions that may increase the risks of delirium include: old age, problems with hearing and seeing, mood problems, multiple long term and acute illnesses, dehydration, chest or bladder infections, stroke, imbalance of salts in the blood, physical and mental disabilities, kidney failure, Parkinson's disease, dementia and the use of sedatives and painkillers.