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Query: UMLS:C0030193 (pain)
 261,466 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effects of depletion of the serotonin precursor, L-tryptophan, on the threshold and tolerance to cold pressor pain, and the analgesic effect of morphine (10 mg intramuscularly), were tested in a double blind trial on human volunteers. Effects on mood were also assessed using the Profile of Mood States and the Addiction Research Center Inventory (ARCI) Scales. To deplete tryptophan, subjects were fed a tryptophan-deficient amino acid mixture 4.5 h before morphine was administered. Controls received the mixture with tryptophan, which is equivalent to a nutritionally balanced protein. The tryptophan-deficient meal reduced plasma tryptophan more than 70% but had no effect on threshold or tolerance to cold pressor pain. After morphine, tolerance to cold pressor pain increased in controls. Tryptophan depletion abolished this analgesic effect. Pain threshold was not altered by morphine. In subjects with normal tryptophan, the analgesic effect of morphine was predicted by the level of plasma morphine-6-glucuronide, but not by the level of morphine. Morphine increased scores on the LSD scale of the ARCI, but had no effect on other measures of mood. Tryptophan depletion also failed to alter mood in these subjects, who had unusually low depression scores before tryptophan depletion.
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PMID:Acute tryptophan depletion blocks morphine analgesia in the cold-pressor test in humans. 141 Jan 47

Lack of education of health professionals, including nurses, is frequently cited as a major reason for undertreatment of pain. Very recent surveys have revealed an urgent need for basic and continuing nursing education to address this problem. For example, little time is spent on the topic of pain in many baccalaureate nursing programs, nursing textbooks lack correct information about opioid addiction, and most practicing nurses currently do not possess knowledge about opioid analgesics that would enable them to administer opioids effectively. The authors report on a survey of 1,781 practicing nurses' specific knowledge deficits regarding opioid analgesics and propose some solutions.
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PMID:Opioid analgesics: nurses' knowledge of doses and psychological dependence. 143 89

Of 138 endoscopically or surgically confirmed cases of gastric ulcer, 102 (74%) were males and 36 (26%) females. Both sexes were affected most commonly in the 6th decade of life. Pain, vomiting and gastrointestinal bleeding were the major presenting symptoms, with a median duration of 6 months. Cigarette smoking was the most common (44%) addiction and 10% were on analgesics or nonsteroidal anti-inflammatory drugs (NSAID). Family history of ulcer was uncommon (2%) and no predilection for any blood group was noted. Among males 53% were skilled workers while 94% of females were housewives. Forty five percent patients were migrants from India and the rest belonged to different provinces of Pakistan. Presentation and behaviour of different sites of gastric ulcers though varied but the results were not significant. Healing rates with H2 receptor antagonists were 33% at 4 weeks and 78% at 8 weeks.
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PMID:Gastric ulcer in Karachi. 143 4

Relief of pain in chronic pancreatitis is the major problem warranting surgical treatment in this disease. The mechanism of pain is largely unknown and several types of operation have been devised for treatment. Side-to-side pancreaticojejunostomy (Partington-Rochelle) and pancreaticoduodenectomy according to Whipple have stood the test of time. Recently, new surgical options have been explored like the operation according to Beger, segmental autotransplantation, and duodenum-preserving total pancreatectomy. Because of the reluctance to refer this type patient for surgery, treatment with analgesic drugs is continued for quite some time and once analgesia addiction has developed clinical judgement in these patients is severely hampered. Surgery can be performed with 70-80% success and with limited morbidity as well as low mortality. For these reasons surgery should be discussed early in the disease if pain becomes a major problem. If these patients are operated prior to analgesia addiction, maybe the long-term prognosis will improve. The diagnostic and surgical approach will be discussed in detail with a plea for considering surgery early in the course of disease.
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PMID:Surgical treatment of painful chronic pancreatitis: an unresolved problem? 147 87

Narcotic analgesic pethidine is widely applied in clinical practice to relieve pain caused by cancer or severe surgical conditions. Iatrogenic addiction following long term medication of narcotic analgesics have been noticed but rarely documented. In this presentation, the authors studied the clinical feature of pethidine dependency as well as experiences of residential detoxification in analysing 34 cases collected in the National Drug Dependence Treatment Center in previous two years. Manifestation of pethidine addiction are much alike to heroin and all abstinent syndromes can be relieved either by methadone or clonidine within 3 weeks except psychological craving throughout the detoxification period. In conclusion, the authors hold that iatrogenic narcotic addiction of this kind is curable as long as the addicts are highly and conscientiously motivated together with rehabilitation measures after detoxification.
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PMID:[Iatrogenic addiction of pethidine: clinical feature and experience of detoxification]. 149 13

Side effects of octreotide may be local, biochemical, gastroenterological, or endocrinological. Local pain at the injection site occurs frequently, but rarely lasts more than 15 minutes and often resolves with continued therapy and may be improved if the vial is warmed prior to injection. No long-term hematological or biochemical abnormalities have been described. Despite initial diarrhea in some patients, no change in circulating fat-soluble vitamins has been consistently reported. Antibodies to octreotide have been described, but are rare. Abdominal pain or diarrhea can occur at the beginning of therapy. These symptoms rarely persist and are minimal if the injections are timed between meals, but this may increase the incidence of gallstones. Gallstones occur with increased frequency. Gastritis has been described as being an invariable consequence of long-term treatment with octreotide. We have found the incidence to be increased in patients on octreotide, but this is not invariable. Hypoglycemia may be exacerbated in some patients with insulinoma because of glucagon suppression. Small numbers of patients on octreotide for acromegaly have developed hypoglycemic. Conversely, carbohydrate tolerance may temporarily worsen because of insulin suppression and rarely oral hypoglycemia drug therapy may become necessary. Most frequently, carbohydrate tolerance does not deteriorate. In some patients with acromegaly, pituitary tumor size may continue to increase despite continued therapy. Last, there is the theoretical risk of addiction to a compound which may act through opiate receptors and considerably alleviates headache in some patients with pituitary tumor. Overall, despite the multiplicity of theoretical side effects, the majority of patients tolerate octreotide well, with no serious untoward effects.
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PMID:Proceedings of the discussion, "Tolerability and safety of Sandostatin". 151 39

Three hundred and eighteen (318) nursing staff members at an acute care teaching hospital in Montreal, Canada, were surveyed to identify their knowledge of pain assessment and management. Two pain instruments were combined and adapted for use. The final instrument consisted primarily of true/false responses and took about 10 min to complete. The mean score was 63.9%. Overall results indicated that nurses lacked knowledge and understanding of opioid addiction, equivalent dosing, properties of opioids, and differences in acute and chronic pain. No statistically significant differences were found in the scores by level of educational preparation or by years of experience. Presentation of the results unit by unit demonstrated that the instrument is suitable as an educational tool as well as an effective strategy to introduce nursing staff to nursing research.
J Pain Symptom Manage 1992 Jan
PMID:A survey examining nurses' knowledge of pain control. 153 76

The growing number of patients admitted to acute care settings with the dual problem of pain and chemical dependency is bringing this major dilemma to the forefront of clinical nursing practice. Orthopaedics is one of the clinical areas likely to encounter an increased proportion of such patients. The care of chemically dependent patients with pain is not only often enormously challenging but also potentially frustrating. Planning care for these patients is best accomplished with a team approach that includes the expertise of several specialties, particularly pain and addiction. Although considerably more research is needed to identify the most effective approaches to the care of chemically dependent patients with pain, sufficient information now exists to support suggestions for guidelines. This article addresses definitions of pain and chemical dependency, methods of identifying the chemically dependent patient, the prevalence of pain and addiction, clinical conflicts and dilemmas related to relieving pain in addicted patients, a framework for planning care, and specific guidelines for individualizing the plan of care. Orthopaedic nurses are challenged to accept a leadership role in improving the care of chemically dependent patients with pain by evaluating these guidelines and developing additional approaches.
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PMID:Assessment and relief of pain in chemically dependent patients. 156 95

Lack of education of health care professionals, including nurses, is frequently cited as a major reason for undertreatment of patients with pain. A reason for undertreatment of pain with opioid analgesics is the irrational fear of creating opioid addiction. To characterize the information nurses receive in their basic education that could contribute to misinformation about this issue, the authors reviewed 14 nursing textbooks, published since 1985, including 8 pharmacology texts and 6 medical surgical texts. An analysis of content revealed that only one textbook correctly stated the definition of opioid addiction and its likelihood following use of opioid analgesics for pain control. Almost all of the texts used confusing terminology, and some erroneously promoted the fear of addiction when opioids are used for pain relief. A simple solution to this problem is to encourage nursing educators to use the American Pain Society publication "Guidelines for Analgesic Use" until textbooks have the opportunity to incorporate correct information.
J Pain Symptom Manage 1992 Feb
PMID:Pain and addiction: an urgent need for change in nursing education. 128 4

In contrast to the use of opioids for the treatment of acute and chronic cancer pain, the administration of chronic opioid therapy for pain not due to malignancy remains controversial. We describe 100 patients who were chronically given opioids for treatment of nonmalignant pain. Most patients experienced neuropathic pain or back pain. We used sustained-release dihydrocodeine, buprenorphine, and sustained-release morphine. Pain reduction was measured with visual analogue scales (VAS), and the Karnofsky Performance Status Scale was used to assess the patient's function. Good pain relief was obtained in 51 patients and partial pain relief was reported by 28 patients. Only 21 patients had no beneficial effect from opioid therapy. There was a close correlation between the sum and the peak VAS values (r = 0.983; p less than 0.0001) and pain reduction was associated with an increase in performance (p less than 0.0001). The most common side effects were constipation and nausea. There were no cases of respiratory depression or addiction to opioids. Our results indicate that opioids can be effective in chronic nonmalignant pain, with side effects that are comparable to those that complicate the treatment of cancer pain.
J Pain Symptom Manage 1992 Feb
PMID:Long-term oral opioid therapy in patients with chronic nonmalignant pain. 157 87


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