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

Sixty patients with bilaterally symmetrical impacted third molars participated in this double-blind, within-subject study to quantify the effects of 4 mg of dexamethasone on reducing postsurgical sequelae. Each patient's surgery was staged by mouth side and completed in two appointments 5 to 6 weeks apart. A preoperative dose of dexamethasone given intravenously was randomized to mouth side and surgical appointment; sterile water served as a control. Major areas assessed in this study were facial swelling, pain, and trismus. No difference in swelling and daily pain was noted. However, trismus and global pain were significantly affected by the steroid. Patients had a daily postsurgical increase in incisal opening of 4 to 6 mm over the control side during the examination period. Patients evaluated pain by choosing the least painful side. By a greater than 4:1 margin, patients chose the steroid side as the least painful side. No increase in the rate or type of complications was detected between control and steroid sides.
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PMID:Evaluation of dexamethasone for reduction of postsurgical sequelae of third molar removal. 140 73

Nitrous oxide analgesia was introduced into obstetrics by a young Polish-Russian physician who manufactured the gas himself, mixed it with oxygen, humidified the mixture with water vapor, and devised a mouthpiece for self-administration. After assessing the results on himself, he evaluated the effects on pain relief, maternal emotion, and maternal and fetal heart rates, as well as on the frequency, duration, and strength of uterine contractions in 25 parturients. He recognized that, in contrast to chloroform, nitrous oxide did not alter uterine activity. He concluded that the advantages of nitrous oxide administration far outweighed its disadvantages.
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PMID:The introduction of nitrous oxide analgesia into obstetrics. 140

The antiinflammatory, analgesic and antipyretic activities of 3-formylamino-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-on e (T-614, CAS 123663-49-0) were investigated in various animal models and compared with those of nimesulide, indomethacin and ibuprofen. The antiinflammatory potency of T-614 on carrageenin-induced paw edema, paper disk granuloma and established adjuvant arthritis was greater than that of ibuprofen, but slightly lower than those of nimesulide and indomethacin. In acute inflammatory models, unlike indomethacin, T-614 suppressed the edemas provoked by dextran and bromelain in rats, but its inhibitory action on ultraviolet erythema in guinea-pigs was weak. Although the analgesic activity of T-614 was hardly demonstrated in writhing tests in mice, its potency against the inflammatory pain such as Randall-Selitto test, adjuvant-induced hyperalgesia and antigen-induced arthritic pain in rats was superior to that of ibuprofen. Moreover, it had a potent analgesic effect on urate-induced synovitis in dogs. T-614 exerted a prompt and strong antipyretic effect in both yeast-induced febrile rats and lipopolysaccharide-induced febrile rabbits. T-614 had virtually no gastrointestinal ulcerogenic action and did not affect water and sodium excretion in rats. T-614 is a novel antiinflammatory compound with different pharmacological properties from that of the reference drugs.
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PMID:Pharmacological studies of the new antiinflammatory agent 3-formylamino-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-o ne. 1st communication: antiinflammatory, analgesic and other related properties. 141 59

This review considers recent (June 1991 to May 1992) literature on the relationship of breast feeding to the treatment of puerperal problems. Two US surveys looked at breast-feeding trends and concluded that 57% of mothers initiated breast feeding in 1987 compared to 60% in 1982. The hypothesis that low levels of breast feeding reflect inadequate support led to production of a practical breast-feeding support guide, a study of the supportive effect of trained birthing companions, and a host of articles that focus on major ongoing topics including water consumption, perceptions of insufficient milk, and promotion. Little was published during this time period that directly addresses the interface between postpartum discomfort and puerperal infection and the disruption of breast feeding, but the literature on puerperium complications is reviewed for its relevance in considering the support a new mother might need for breast feeding in the presence of these conditions. This review covers treatment for postpartum hemorrhage; episiotomy, laceration, pain, and healing; and infection. The literature on the effect of medication on lactation is covered, including the use of pharmaceuticals to support or suppress lactation. The most recent challenge in breast-feeding research is described as understanding the impact of breast feeding on fertility. Therefore, studies of milk expression, the Lactational Amenorrhea Method, and interventions to increase the feasibility of optimal breast feeding are summarized. Finally, literature on the relationship between breast feeding and maternal health (specifically maternal nutrition and maternal HIV status) is considered. It is concluded that breast feeding can be maintained during maternal treatment for the conditions considered.
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PMID:Puerperium and breast-feeding. 145 Mar 45

Prostaglandins are mediators of reperfusion hyperalgesia; their site of action may be in the periphery, in the central nervous system, or both. We have investigated whether prostaglandins play a role in the central nervous system during reperfusion hyperalgesia, by intracerebroventricular (i.c.v.) micro-injection of non-steroidal anti-inflammatory drugs (NSAID), to inhibit local prostanoid synthesis. We induced tail ischaemia in conscious rats by applying an inflatable cuff at the base of the tail. The cuff was released at the first signs of co-ordinated escape behaviour. Responses to a noxious thermal stimulus were assessed, by measuring tail flick latency following immersion of the tail in water at 49 degrees C, prior to and immediately after release of the tourniquet. Tail flick latency decreased significantly following ischaemia, that is there was post-ischaemic reperfusion hyperalgesia. Intracerebroventricular micro-injection of NSAID prior to applying the tourniquet had no effect on the co-ordinated escape behaviour during ischaemia or on the tail flick latency after application of a sham tourniquet (uninflated cuff). However all the drugs abolished the hyperalgesia evident during reperfusion. Doses required to abolish hyperalgesia were 0.001 mg/kg indomethacin, 0.08 mg/kg dipyrone, 0.09 mg/kg ibuprofen, 0.2 mg/kg diclofenac sodium and 0.2 mg/kg paracetamol. These doses are 2-3 orders of magnitude less than those necessary to abolish reperfusion hyperalgesia when the same drugs are administered systemically. Our results indicate that the development of reperfusion hyperalgesia of the rat's tail depends on the synthesis of prostanoids within the central nervous system.
Pain 1992 Sep
PMID:Intracerebroventricular micro-injections of non-steroidal anti-inflammatory drugs abolish reperfusion hyperalgesia in the rat's tail. 145 88

From 12. 1988 to 6. 1990 we carried out on 27 patients at the Department of Gynaecology of the University of Freiburg an open study to compare the two water-soluble, nonionic, monomeric contrast agents (Iopamidol-300 corresponding to Solutrast-300 and Iopamidol-370 corresponding to Solutrast-370) with different osmolality (616 mosm/kg H2O resp. 799 mosm/kg H2O) and concentration (300 mg I/ml resp. 370 mg I/ml). It is a remarkable fact that the contrast quality in the x-rays was higher for Iopamidol-300. Complications such as hypersensitivity reactions or local irritations were not recorded. Iopamidol-300 was found to be the best tolerated of the two contrast media in respect of mildest intensity of pain.
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PMID:[Iopamidol-300/370 in galactography--a clinical comparative study]. 145 84

To assess the validity of a new simplified cold water immersion test (4 degrees C-1 min method) for peripheral circulatory function, comparison was made with the conventional method (10 degrees C-10 min method). These two different methods of cold immersion test were applied to 23 patients with vibration disease and 24 healthy men. Observation was made on finger skin temperature by a thermistor and complaints in the hand by a 5-step self-reported scale method every minute during the test. The patterns of recovery of skin temperature after cold immersion in each group were similar in both methods. Pain in the hand in the 4 degrees C-1 min method was less than that in the 10 degrees C-10 min method. The recovery rate at 5 min in the patients with Raynaud's phenomenon was lower than that in those without Raynaud's phenomenon in the 4 degrees C-1 min method (p < 0.01). However, no significant differences were noted in 10 degrees C-10 min method. The results suggest that the new method is feasible in detecting the response of vasodilation after immersion. In the recovery rate at 5 min after immersion, near values of the sensitivity and specificity were observed between 50% cut-off values in the 4 degrees C-1 min method and 30% value in the 10 degrees C-10 min method. Thus, the 4 degrees C-1 min method is considered to be more useful to evaluate the physiological response after cold immersion than the 10 degrees C-10 min method.
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PMID:[A 4 degrees C-1 min method of cold water immersion test for peripheral circulatory function in fingers]. 146 Jul 87

1. Our aim was to determine the relationship between efferent sympathetic nervous system activity to skeletal muscle (MSNA) and both the dynamics of the stimulus and pain sensation during localized skin cooling in humans. MSNA in the lower leg (peroneal microneurography), heart rate, arterial blood pressure, hand skin and muscle temperatures and perceptions of pain were recorded in ten healthy subjects before, during and after immersion (3 min) of a hand in water of different temperatures ranging from non-noxious to extremely noxious (28, 21, 14, 7 and 0 degrees C). 2. Immersion produced an abrupt, water temperature-dependent fall in hand skin temperature (initial 30 s) followed by a more gradual decline. In contrast, the fall in hand muscle temperature was almost linear during immersion. Throughout immersions at the 28, 21, and 14 degrees C water temperatures and during the initial phase of the 7 degrees C level, sensations ranged from not painful to somewhat painful; however, the latter phase of the 7 degrees C immersion and the entire 0 degrees C level were perceived as intensely painful. 3. During the initial 15-30 s of immersion at the 21-7 degrees C water temperatures, MSNA decreased from control levels in all subjects (47-58% on average, P < 0.05), whereas mean arterial blood pressure did not change. MSNA then returned to and remained at control levels throughout the 28-14 degrees C immersions, although arterial pressure, primarily systolic, rose slightly. 4. After some delay, MSNA increased during immersion at both the 7 degrees C (P < 0.05 at 90 s) and 0 degrees C (P < 0.05 at 60 s) levels in a progressive, water temperature-dependent manner, achieving peak values of approximately 200 and 300% of control, respectively, by 2.0-2.5 min. These elevations in MSNA were associated with parallel increases in arterial pressure. 5. Heart rate rose during the onset of immersion at all water temperatures (P < 0.05), but fell rapidly to control levels after 60-90 s. The increases were small (approximately 5 beats/min) and similar at the 28-7 degrees C levels, but were twice as great at the coldest water temperature.(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:Sympathetic nervous system activity during skin cooling in humans: relationship to stimulus intensity and pain sensation. 147 95

Intracutaneous sterile water injections have been reported to relieve acute labor pain and cervical pain in whip-lash patients. A double blind cross-over trial has presently been conducted in 10 women with cervicogenic headache in order to investigate whether sterile water injections were effective in this disorder. No benefit was observed for either treatment (isotonic saline or sterile water), neither on pain during the first 14 days nor on neck mobility. We conclude that intracutaneous sterile water injections is not effective in cervicogenic headache.
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PMID:Intracutaneous sterile water injections do not relieve pain in cervicogenic headache. 148 36

Locomotor activity and food and water consumption are potentially indices of post-operative pain in laboratory rodents, but it is important to establish whether these variables are directly affected by opioid analgesics or by halothane anaesthesia in normal rats. The effects of three opioids, buprenorphine, nalbuphine and butorphanol administered alone or following halothane anaesthesia, were studied in groups of normal non-operated adult Wistar rats. All 3 analgesics affected food intake and activity levels, but had little or no effect on water intake. Buprenorphine caused a significant elevation of activity levels and a reduction in food intake at clinical doses (0.01 and 0.05 mg/kg s/c). Nalbuphine (0.5, 1 and 2 mg/kg s/c) caused a reduction in food intake but had a smaller stimulatory effect on locomotion. Butorphanol (0.4 mg/kg s/c) caused a reduction in food intake and elevation in activity. These results suggest that water consumption is likely to be a more reliable variable to use when assessing post-operative pain and the efficacy of analgesics in rats.
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PMID:The effects of buprenorphine, nalbuphine and butorphanol alone or following halothane anaesthesia on food and water consumption and locomotor movement in rats. 150 31


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