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

Peptides derived from pro-opiomelanocortin (POMC) influence neurodevelopmental processes. Earlier studies indicated that MSH/ACTH compounds improved behavioral efficiency in retarded individuals. Recent studies have shown that opiate blockers reduce treatment-resistant self-injurious behavior (SIB), an autistic-like, developmental disorder. Although the exact mechanisms are unknown, prenatal POMC disregulation, addiction to endogenous opiates and elevated pain threshold have been proposed to account for this behavior. In study one, four SIB patients were given 0, 25, 50 or 100 mg of naltrexone on separate weeks in a double blind, Latin square design. A specific dose dependent reduction in SIB was observed in three patients. In study two, plasma b-endorphin was measured in 40 patients with SIB, a related behavior, stereotypy (ST) or controls. SIB and ST patients had higher levels of endorphin than controls. These data added new support for the role of b-endorphin in a treatment-resistant patient group.
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PMID:Beta-endorphin disregulation in autistic and self-injurious behavior: a neurodevelopmental hypothesis. 246 89

The technology for patient intravenous self-administration of morphine has been successfully implemented in postoperative and other clinical settings and can be used with terminal patients who experience pain. The question of whether patients who use such instrumentation will be vulnerable to over-medication or development of addiction has not been addressed. This report reviews two competing theories that bear upon this question and tests their predictions about self-administration of morphine for pain relief using data obtained from patients in a bone marrow transplant unit. The first, Opponent Process Theory, predicts escalating drug use and the development of addictive behavior in patients who self-administer morphine. The second, Control Theory, predicts that patients will self-regulate pain effectively by administering morphine without developing problems of medication abuse or addiction. Patients self-administering morphine for 2 weeks were compared to controls who received the drug via routine staff-controlled continuous infusion procedures. Self-administering patients used significantly less morphine than controls and still achieved the same amount of pain control; moreover, they terminated drug use sooner than controls. The predictions based upon Opponent Process Theory were not supported in these marrow transplant patients, but Control Theory accounted well for the outcomes. These results support the assumption that self-administration of opioids in a medical setting does not put patients at risk for over-medication or addiction.
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PMID:Prolonged morphine self-administration and addiction liability. Evaluation of two theories in a bone marrow transplant unit. 246 51

In 169 cases with liver cancer pain, the therapeutic effects of TCM and the authors' "analgesic therapy of four steps" were analysed. The results were that most patients with advanced liver cancer had mild pain, and only a small number of patients (14.2%) had moderate or severe pain. By the first step analgesic therapy, 46.1% of the patients were relieved and with the second or third step of analgesic therapy, 93.5% of the patients were relieved, only 6.5% of the patients with grade III pain needed the fourth step therapy. With TCM treatment alone, the remission rate of grade I and grade II pain was 100% and 76.9% respectively. "Analgesic therapy of four steps" produced less side effects or addiction to narcotics.
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PMID:Treatment of pain according to syndrome differentiation in 169 cases of liver cancer. 256 Oct

A case is presented of a 17-year-old with leukemia, pneumonia and chest-wall pain. Inadequate treatment of the patient's pain led to behavioral changes similar to those seen with idiopathic opioid psychologic dependence (addiction). The term pseudoaddiction is introduced to describe the iatrogenic syndrome of abnormal behavior developing as a direct consequence of inadequate pain management. The natural history of pseudoaddiction includes progression through 3 characteristic phases including: (1) inadequate prescription of analgesics to meet the primary pain stimulus, (2) escalation of analgesic demands by the patient associated with behavioral changes to convince others of the pain's severity, and (3) a crisis of mistrust between the patient and the health care team. Treatment strategies include establishing trust between the patient and the health care team and providing appropriate and timely analgesics to control the patient's level of pain.
Pain 1989 Mar
PMID:Opioid pseudoaddiction--an iatrogenic syndrome. 271 May 65

A series of 252 patients with terminal cancer (mostly with bony metastases) were treated with epidural morphine. Results were good to excellent pain relief in 85% of patients, but those with malignant growths above the neck showed relatively poor response. For those who survived more than 3 months, the daily morphine requirement increased progressively from 3.5 +/- 0.6 mg to 19.5 +/- 5.3 mg. Drug tolerance developed but no signs of addiction were noted. Respiratory depression was detected in 2 cases due to negligence but resolved uneventfully. No infection of the central nervous system was seen. Systemic reactions were mild and transient. The major drawbacks were catheter failure which required reinsertion, and sharp pain during injection in the later stages of therapy. Despite the side-effects, percutaneous epidural morphine is a useful treatment modality of pain control in cancer patients because it is readily available, safe and not too expensive.
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PMID:A preliminary study of long-term epidural morphine for cancer pain via a subcutaneously implanted reservoir. 272 85

From the data in the literature it can be seen that 40% of the surgical population has insufficient postoperative analgesia. Many reasons have been given for this: pain control delegated to the doctor on duty and/or the nursing staff; administration of drugs 'on demand', if the patient asks for them, or the nurses feel it to be necessary; fear of causing side effects such as respiratory insufficiency; or provoking addiction by giving narcotics. The aim of this paper is to evaluate the intensity of pain, the side effects, the degree of activity, anxiety, feeling of weakness and the mood of patients surgically treated for oncological diseases of the thorax and upper abdomen, comparing two different antalgic approaches. Thirty-five patients were studied. Pain was treated on demand with a narcotic, or an anti-inflammatory drug, or not treated at all; 20 patients were treated with analgesics given at predetermined hours, following the regime: methadone 10 mg intramuscularly (i.m.) every 12 h from the first to the third day following surgery and sodium diclofenac 75 mg (i.m.) every 12 h from the fourth to the seventh day. Results showed that patients treated with analgesics given intramuscularly at fixed hours have a significantly better pain control during the whole week of treatment (P less than 0.001), on average sleep more (P less than 0.001), spend more time standing or sitting and fewer hours lying down (P less than 0.001), have a higher performance status and feel less weak (P less than 0.05) than the group of patients treated with drugs 'on demand', or not treated at all.
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PMID:Treatment of postoperative pain: comparison between administration at fixed hours and 'on demand' with intramuscular analgesics. 273 11

Focused research on pain and pain control in children has developed primarily in the last 10 years and even now is woefully inadequate in relation to the magnitude of the problem. The available research, inferences from the adult literature, and anecdotal information all indicate the elusive nature of pain. Pain is not solely a fixed neurophysiologic response to a noxious stimulus but a product of the interaction of many variables such as age, cognitive set, personality, ethnic background, and emotional state. These factors exert a tremendous influence on the suffering which surrounds the pain message. Technology exists at present to eliminate or substantially reduce pain in almost all cases. There remains, however, a tendency, which is even more pronounced with respect to children, to underestimate or ignore pain. In an overall approach to pain in children, the following points should be considered: A high index of suspicion is necessary to determine if children are experiencing pain since they may have difficulty verbalizing their discomfort. In infants, physiologic variables should be considered (increased heart rate, palmar sweating, increased respiratory rate), and in preschoolers, time should be taken to ascertain that the child actually understands the word "pain" if it is used in questioning them. Some method of continuous monitoring, such as a visual analogue scan, should be considered as part of the treatment plan. Adequate analgesia should be provided. The appropriate dose should be administered at the appropriate pharmacokinetic time. Too little medication may cause obsessive attention to medication-related issues. Too much medication may cause sedation and lack of mental clarity, which is often anxiety-producing for both the parents and the child. The usefulness of p.r.n. medication has been seriously questioned and a time-contingent as opposed to pain-contingent strategy should be applied. Fears of addiction are generally unwarranted. Adjunctive medication may increase the value of offered narcotics and counteract some of their side effects. Although this monograph has focused more attention on pharmacologic than on nonpharmacologic approaches to pain, this is merely a reflection of available data and not necessarily of relative importance. The importance of distraction from pain by nursing, medical, or child life personnel using play techniques cannot be overestimated. Every attempt should be made to relax the child by using creative strategies. Preparation of the child for procedures is often helpful as some of the fear of the unknown is eliminated.(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:Pain and pain control in children. 286 Oct 66

Iatrogenic, or medically induced, drug addiction is a problem affecting both patients and physicians. We describe the function of a new center devoted solely to managing iatrogenic addiction. The center accepts patients on physician referral only. The addiction usually arises as a complication of a medical disorder that is accompanied by pain and requires comprehensive and multidisciplinary evaluation and treatment. Detoxification from the offending medication, provision of chronic analgesia, and maintenance are managed with methadone. All appropriate modalities of treatment including psychotherapy, physical therapy, and relaxation techniques are employed.
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PMID:Medically induced drug addiction. 286 26

The successful management of 5 consecutive patients with intractable phantom limb pain is described. The main therapy is a combination of a narcotic and antidepressant. Medication remained effective during the average observation time of 22 months. There were no signs of habituation or addiction. We conclude that narcotics can be safely and successfully utilized for long-term management of phantom limb pain.
Pain 1986 Feb
PMID:Long-term use of narcotic/antidepressant medication in the management of phantom limb pain. 287 Apr 54

Physicians' attitudes toward pain in children were assessed in an attempt to explain why adults are administered more analgesics than children while in the hospital. A survey was conducted of all pediatricians, family practitioners, and surgeons in Hartford. Fifty-seven percent of the sample responded (112/195). Seventy-five percent of the sample felt that children experienced adult-like pain by age 2. Thirty-eight percent of the physicians were somewhat or significantly concerned about the risk of addiction when using narcotics in their young patients. Pediatricians were significantly more likely than surgeons or family practitioners to see younger children as having adult-like pain and to prescribe analgesics for children at an earlier age. Many other attitudinal differences were also related to specialty. Other demographic variables (age, sex, mode of practice, and personal experience with pain) had little effect on attitudes. These findings suggest possible explanations for the discrepancy between child and adult analgesic prescribing practices.
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PMID:Physicians' attitudes toward pain in children. 287 55


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