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Query: UMLS:C0038187 (starvation)
 24,951 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

General anesthesia may predispose patients to aspiration of gastroesophageal contents because of depression of protective reflexes during loss of consciousness. In addition, some patients may be at increased risk of pulmonary aspiration because of retention of gastric contents caused by pain, inadequate starvation, or gastrointestinal pathology resulting in reduced gastric emptying and gastroesophageal reflux. Despite increasing knowledge of the problems associated with aspiration, the relatively small incidence and associated mortality rates in the perioperative period do not appear to have changed markedly over the last few decades. In this review article, the physiological factors associated with an increased risk of gastroesophageal reflux and aspiration are considered together with some of the methods that are used to prevent aspiration. In particular, preoperative starvation, the use of drugs designed to increase gastric pH, recent developments in airway devices, and appropriate application of cricoid pressure are critically appraised.
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PMID:Gastroesophageal reflux and aspiration of gastric contents in anesthetic practice. 1186 13

Appellate courts in California and New Jersey have reached conflicting conclusions in the first legal tests of whether artificial feeding is a "medical treatment," and whether it is ever legally permissible to allow a patient to die from dehydration or starvation. In a criminal prosecution of physicians Robert Nejdl and Neil Barber, the California court ruled that there was no significant difference between a respirator and intravenous feeding, and that the two doctors had no legal duty to continue "futile" treatment of their irreversibly comatose patient. The New Jersey court rejected as purposeful killing a request to remove the nasogastric tube from elderly nursing home patient Claire Conroy, who was incompetent but not comatose. Annas considers the issue of pain or suffering to be central to decision making in such cases.
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PMID:Nonfeeding: lawful killing in CA, homicide in NJ. 1164 94

The Rhode Island Supreme Court held that a healthy adult prisoner has no constitutional right to end his life by starvation and thus that the prison authorities had a right and duty to intervene with force feeding. Senecal was competent. He suffered from no terminal or other physical illness. Except for psychological pain and stigma from his conviction, he suffered from no psychosis or delusions. No dependents would be adversely affected by his unassisted suicide. The court based its decision on the fact that a prisoner retains only those rights not fundamentally inconsistent or incompatible with the criminal justice system. A prisoner has no reasonable expectation of privacy protected by the Fourth Amendment, and so a right to end one's life by starvation under the right to privacy does not apply. The state has a compelling interest in preventing suicide and preserving life where to allow a prisoner to starve would adversely affect prison security and order.
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PMID:Laurie v. Senecal. 1164 99

Declining physical, emotional, and social function as a result of anorexia and cachexia are considerable contributors to discomfort for cancer patients and their families, and they impair the patient's ability to express optimal physical and psychosocial potential as long as possible. This decline no longer has to be accepted as an indispensable sequel to advanced cancer, just as pain is no longer considered to be unavoidable. A routine screening for anorexia and cachexia and associated symptoms is necessary, as is a careful, comprehensive assessment, because the condition is not always obvious. Decisions about anorexia and cachexia treatment are guided by prioritizing the different, concurrent physical, psychosocial, and existential problems and by considering the natural course of the cancer and the effects of antineoplastic therapies. Reversible causes for anorexia and cachexia need to be identified and treated, if appropriate. Nutritional interventions are often indicated; patients with a predominant starvation component and without inflammation may profit the most. New pharmacologic therapies for primary anorexia and cachexia syndrome are expected to enter clinical practice soon; however, until then, treatment with corticosteroids, progestins, or prokinetics may be indicated for some patients. To understand a multicausal syndrome, multimodal and interdisciplinary therapy is required. Specialist palliative care services can be helpful to provide, hand-in-hand with the disease specialists [172], assessment and management of psychophysical symptoms and sociospiritual needs of patients during the course of the illness and at the end of life [173]. Research efforts aim to better characterize subgroups of patients suffering from secondary causes of anorexia and cachexia and to elucidate the mechanisms involved in the primary anorexia and cachexia syndrome. Increasingly individualized treatments are expected with combination treatments that involve different mechanisms including nutrition.
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PMID:Update on anorexia and cachexia. 1217 May 70

Conscious intravenous sedation is a safe alternative method to general anaesthesia. We have used a technique of continuously titrated, as opposed to incremental boluses of, intravenous or intramuscular midazolam for conscious sedation, with tumescent adrenaline-lignocaine solution for local anaesthesia, routinely in 421 plastic surgical procedures between 1997 and 2000. All patients were American Society of Anesthesiologists (ASA) class I or II. Conscious sedation was administered through our protocol of continuously titrated doses of midazolam in dextrose saline. The operative field was injected subcutaneously with varying volumes of diluted lignocaine and adrenaline, depending on the anatomical region. Preoperative sedation was administered 1 h before the procedure in the form of an intramuscular injection of pethidine and promethazine (Phenergan). Intraoperatively, a subset of patients received up to four divided diluted doses of pethidine. A preoperative 4 h starvation period pronounced the effect of the sedative. No intraoperative conversions to general anaesthesia were needed, and no sedation complications occurred. No unplanned re-admissions secondary to nausea, prolonged drowsiness or pain were required. All patients who were treated using this technique had an uneventful postoperative course. Hospital stay was substantially shorter than following general anaesthesia, which provided a significant reduction in medical-care expenses and a faster return to work. In conclusion, conscious sedation administered by titrated intravenous midazolam is a well-tolerated, safe, consistent, predictable and effective anaesthetic choice for a variety of plastic surgical procedures, many of which would commonly be performed under general anaesthesia.
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PMID:Continuous intravenous versus bolus parenteral midazolam: a safe technique for conscious sedation in plastic surgery. 1285 24

Respiratory muscles are essential to alveolar ventilation. These muscles work against increased mechanical loads due to airflow limitation and geometrical changes of the thorax derived from pulmonary hyperinflation. Respiratory muscle fibres show several degrees of impairment in cellular and subcellular structures which, in many cases, are proportional to the severity of the disease and accompanying conditions (ageing, deconditioning, starvation, comorbidity). This structural impairment translates, from the functional point of view, to a loss of strength (capacity to generate tension) and an increased susceptibility to failure in the face of a particular load (early onset of fatigue). On the other hand, there is accumulating evidence that the diaphragm and other respiratory muscles are also able to express adaptive changes in response to the chronic mechanical load imposed by the disease. In most cases, impairment and adaptation of the respiratory muscles reaches a balance that permits enough ventilation for patients' survival. However, this balance can be altered for additional increments of the mechanical or metabolic load on the muscles (e.g. abdominal or thoracic surgeries, pneumonia, pulmonary embolism, etc.). Moreover, loss of balance is not always associated with extreme situations. Many patients develop ventilatory failure and require hospital admission even if the cause of the exacerbation is less dramatic (bronchial infections, pain of any nature, electrolyte disturbances, etc.). Although the physiopathology of chronic obstructive pulmonary disease exacerbations is multifactorial, the above-mentioned fragility suggests the existence of a "fragile balance" between respiratory muscle overload and respiratory muscle adaptations. Assessment of respiratory muscle function through specific tests evaluating the strength and endurance could offer valuable information about this particular susceptibility to muscle imbalance. Identification of patients possessing a fragile respiratory muscle balance could have important implications for the application of specific strategies such as respiratory muscle training, nutrition, or anabolic treatment.
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PMID:Structure and function of the respiratory muscles in patients with COPD: impairment or adaptation? 1462 Nov 6

Identifying the concerns of terminal cancer patients and respecting their wishes is important in clinical decision-making concerning the provision of artificial nutrition and hydration (ANH). The aim of this study was to discover terminal cancer patients' wishes and determine influencing factors toward the provision of ANH. One hundred and ninety-seven patients with terminal cancer, admitted to a palliative care unit in Taiwan over a two-year period, completed a questionnaire interview, which included demographic characteristics, knowledge and attitudes on ANH, the health locus of control, subjective norms, and the wishes to use ANH. One hundred and fifty-four patients (78.2%) used ANH in the past month. A knowledge test on issues related to ANH showed the rates of accurate responses were ranked as: peripheral intravenous route can only provide hydration (48.7%), excessive artificial nutrition may increase the proliferation of cancer cells (32%), ANH can prolong life expectancy for all patients (17.3%), and ANH can prevent all patients from starving to death (5.6%). The strongest attitude of patients toward the potential benefit of ANH was "it can provide the body need with nutrition and hydration when inability to eat or drink occurs." Otherwise, the strongest attitude toward the potential burdens of ANH was "gastrostomy makes the illness worse." One hundred and twenty-two of 197 patients (62.9%) expressed their wishes to have ANH. The results of logistic regression analysis showed that the experience of using a nasogastric tube and intravenous fluids, and subjective norms were the most significant variables related to the wishes of patients to use ANH (odds ratio [OR]=11.11, 95% confidence interval [CI]=3.20-38.64; OR=2.51, 95% CI=1.22-5.15, OR=1.30, 95% CI=1.05--1.60, respectively). However, the use of artificial nutrition was negatively affected by the knowledge of ANH (OR=0.53, 95% CI=0.37-0.84). In conclusion, Taiwanese patients with terminal cancer have insufficient knowledge about AHN and still believe in the benefits of ANH, especially in avoiding dehydration or starvation. The findings of this study indicate the importance of medical professional training and decision-making in the initial consideration of using ANH. By improving the knowledge about ANH among patients, more appropriate decisions can be achieved.
J Pain Symptom Manage 2004 Mar
PMID:Terminal cancer patients' wishes and influencing factors toward the provision of artificial nutrition and hydration in Taiwan. 1501 99

Much has been learnt during the last 50 years about the causes of neonatal mortality and morbidity and about practical means for minimising them in newborn lambs, kids, bovine calves, deer calves, foals and piglets. The major causes of problems in these newborns are outlined briefly and include hypothermia due to excessive heat loss or to hypoxia-induced, starvation-induced or other forms of inhibited heat production. They also include maternal undernutrition, mismothering, infection and injury. The published literature reveals that the scientific investigations which clarified these causes and led to practical means for minimising the problems, involved iterative successions of self-reinforcing laboratory and field or clinical investigations conducted over many years. These studies focused largely on solutions to the problems, not on the suffering that the newborn might experience, so that an analysis of the associated welfare insults had not apparently been conducted until now. The present assessment focuses on potentially noxious subjective experiences the newborn may have. The account of the causes of neonatal mortality and morbidity outlined early in this review indicates that the key subjective experiences which require analysis in animal welfare terms are breathlessness, hypothermia, hunger, sickness and pain. Reference to documented responses of farm animals and, where appropriate, to human experience, suggests that breathlessness and hypothermia usually represent less severe neonatal welfare insults than do hunger, sickness and pain. Major science-based improvements in the management of pregnancy and birth have markedly reduced the overall amount of welfare compromise experienced by newborn farm animals and further improvements may be expected as knowledge is refined and extended in the future.
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PMID:Animal welfare implications of neonatal mortality and morbidity in farm animals. 1530 60

The death of Terri Schiavo by starvation and its sanction by some United States Courts indicates the alarming revival of the eugenics and euthanasia movement. From the legal sanction of physician-assisted suicide, the euthanasia movement now tries to advance the legal protection for "mercy killing." Terri was diagnosed with persistent vegetative state, a term that is outdated, vague and imprecise and that likens a human being to a vegetable. Medical literature indicates that patient with so-called "persistent vegetative state" can recover, and that they do experience pain. The euthanasia movement, linked to eugenics in its origin and present day influence in bioethics espouses the Nazi notion of "lives not worth living," unlimited patient autonomy, and philosophical utilitarianism. John Paul II countered the eugenic philosophy with the classical Western concept of man as the image and likeness of God, responsible for the care of himself and society as a whole. He taught in writing and by example that food and water are basic human care that every person should receive. In the last days of his life he showed a judicious use of proportionate or ordinary means to maintain life. He chose to forego disproportionate medical treatment when there was no reasonable hope of recovery. At that point he continued to receive ordinary medical care, together with basic human and spiritual care.
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PMID:Death of John Paul II and the basic human care for the sick and the dying. 1647 75

Severe or chronic disease can lead to cachexia which involves weight loss and muscle wasting. Cancer cachexia contributes significantly to disease morbidity and mortality. Multiple studies have shown that the metabolic changes that occur with cancer cachexia are unique compared to that of starvation. Specifically, cancer patients seem to lose a larger proportion of skeletal muscle mass. There are three pathways that contribute to muscle protein degradation: the lysosomal system, cytosolic proteases and the ubiquitin (Ub)-proteasome pathway. The Ub-proteasome pathway seems to account for the majority of skeletal muscle degradation in cancer cachexia and is stimulated by several cytokines including tumor necrosis factor-alpha, interleukin-1beta, interleukin-6, interferon-gamma and proteolysis-inducing factor. Cachexia is particularly severe in pancreatic cancer and contributes significantly to the quality of life and mortality of these patients. Several factors contribute to weight loss in these patients, including alimentary obstruction, pain, depression, side effects of therapy and a high catabolic state. Although no single agent has proven to halt cachexia in these patients there has been some progress in the areas of nutrition with supplementation and pharmacological agents such as megesterol acetate, steroids and experimental trials targeting cytokines that stimulate the Ub-proteasome pathway.
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PMID:Mechanisms of skeletal muscle degradation and its therapy in cancer cachexia. 1745 54


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