Background: The majority of women described hysterosalpingography (HSG) as a painful procedure. There is little information on the features of HSG-associated pain and factors that predispose to increased pain experience. Objectives: This study investigated preprocedure psychological state and related demographic factors as predictors of pain perception in women undergoing HSG. Methods: The sample included 99 women selected through consecutive sampling at the Radiology Department, University of Benin Teaching Hospital, Benin City, Nigeria. The study utilized a cross-sectional survey design to collect data using Spielberger's State-Trait Anxiety Inventory, Zung Self-rating Depression Scale, and Visual Analog Scale for the perception of pain and state anxiety. Results: The women with lower state anxiety reported significantly lower pain perception (X̅ = 6.69) than the women with high anxiety (X̅ = 7.93). Trait anxiety, state anxiety, and depression jointly predicted pain perception among the women undergoing HSG, with R2 = 0.117, F (3,95) = 6.797; P < 0.001. They collectively accounted for about 17.7% variance in pain perception. Conclusion Patients being prepared for the HSG procedure can be educated on concerns related to anxiety and coping strategies and be provided with anxiolytics or other medication as clinically indicated.
Demography ; Pain Perception ; Women

BACKGROUND: This study was designed to investigate the correlation between pain and non-pain sensation of the cutaneous nociceptors in healthy adults use 250 Hz and 5 Hz evoking neuroselective sinusoidal current to A delta and C-fiber separately. METHODS: Fifty healthy adult volunteers who have no history of neurological illness were examined. Twenty-five of them were male, and twenty-five were female. Their ages ranged from 20 to 46 years, with a mean equal to 29.5 years old. The thresholds for both current perception and nociceptive perception were measured bilaterally in volar aspect of wrist using a Neurometer CPT/C (Quantitative Sensory Nerve Testing Device). The manual mode for current perception threshold and the staircase method for nociceptive current perception threshold was performed individually. RESULTS: The mean values of the threshold for perception evoked by 250 Hz were 0.30 mA in left and 0.31 mA in right, 0.17 mA in left and 0.14 mA in right at 5 Hz respectively. The mean values of the nociception threshold were 0.52 mA in both site at 250 Hz and from 0.35 mA to 0.32 mA at 5 Hz (Table 1). There were no differences between left and right wrist (Fig. 1). Also a significant positive correlation between current perception and nociception thresholds was found (p<0.05) (Fig. 2, 3). There appeared to be different between genders in perception threshold evoked by 250 Hz and nociception threshold evoked by 5 Hz in left (p<0.05) (Table 2). CONCLUSIONS: There exists a meaningful correlation between both sensations of non-pain and pain perception thresholds obtained from all subjects. The measurement of the current perception threshold is considered to be a unique and valuable resource in evaluation of patient with neurologic condition, as well as in serial evaluation of patient to assess the outcome of therapeutic intervention.
Adult* ; Female ; Humans ; Male ; Nociception* ; Nociceptors ; Pain Perception ; Sensation ; Volunteers ; Wrist

Aging is defined as a collective process that alters organism's functional capacity and appearance over the course of life. Apart from an increase in susceptibility to many diseases, aging affects the cellular system that is responsible for decoding painful stimuli. Yet, aging-associated molecular mechanisms of pain perception remains elusive. Using Drosophila, we showed a decrease in temperature tolerance and a reduction in high temperature thermal avoidance with aging. Locomotor activity assay demonstrated that the age-dependent changes in heat nociception did not stem from the general decline in muscular activity. However, we identified pain-related gene expression alteration with aging. We anticipate that our findings would help opening a new window onto developing the optimal pain treatment for the elderly.
Aged ; Aging* ; Drosophila* ; Gene Expression* ; Hot Temperature* ; Humans ; Motor Activity ; Nociception ; Pain Perception

The evolution of brain imaging techniques over the last decade has been remarkable. Along with such technical developments, research into chronic pain has made many advances. Given that brain imaging is a non-invasive technique with great spatial resolution, it has played an important role in finding the areas of the brain related to pain perception as well as those related to many chronic pain disorders. Therefore, in the near future, brain imaging techniques are expected to be the key to the discovery of many unknown etiologies of chronic pain disorders and to the subjective diagnoses of such disorders.
Brain ; Chronic Pain ; Neuroimaging ; Pain Perception

Chronic pain is a self-sustaining, self-reinforcing, and self- regenerating process. It persists beyond 3~6 months regardless of initial diagnostic category. It is not a symptom of an underlying acute somatic injury but rather, a destructive illness in its own right. It is an illness of the whole person and not a disease caused by the pathological state of an organ system. Chronic pain is persistent, long-lived, and progressive. Pain perception is markedly enhanced. Pain related behaviour becomes maladaptive and grossly disproportional to any underlying noxious stimulus, which usually has healed and no longer serves as an underlying pain generator. The purpose of this paper to present an approach to the prevention of chronic pain and disability, and to provide the clinician with potentially useful tools for the recognition of individuals at risk for chronic illness for whom multidisciplinary treatment is indicated.
Chronic Disease ; Chronic Pain* ; Humans ; Pain Perception

Adequate pain relief is a requisite for a successful closed manipulative reduction (CMR) of fractures and dislocations. This prospective study was undertaken to assess the mode and adequacy of pain relief given to patients undergoing such procedures at Seremban Hospital from the 1st April to the 31st May 2001. All patients with fractures and dislocations scheduled to undergo CMR were included in this study. The type of sedative agents and analgesia administered were recorded. Demographic data and the type of fracture or dislocation of the selected patients were documented. A visual analogue scale (VAS) for pain perception was given to both to the patients and the medical personnel who performed the procedure. All data were collected manually before entered into computerized database for analysis. Of 72 patients included in this study, 47% were Malay, 26% Indian, 21% Chinese and 6% others. There was male predominance and the patients' age ranged between 9 to 79 years (average 27.4 years). Upper limb injuries (79%) were mainly fractures of the radius and ulna (29%) and isolated fracture radius (21%). For the lower limb injuries (21%), combined tibia and fibula fractures constituted 10% of the total cases followed by isolated tibia fractures (10%) and hip dislocation (1%). The most common pain relieving agents given during the CMR were intravenous pethidine alone (43%) followed by combination of intravenous pethidine and valium (36%), intramuscular pethidine (17%) and intramuscular tramal (4%). The Visual Analogue Score (VAS) for pain perception revealed that 61% of the patients had moderate pain while 21% had severe pain during the course of the procedures. Suboptimal pain relief administered during CMR should prompt positive actions to ensure that the patient is not subjected to undue pain just for the sake of an acceptable fracture reduction.
Pain ; Reduction (chemical) ; Meperidine ; pain perception ; Intravenous

Intractable chronic pain is a debilitative pain conditions for most patients. Unfortunately, the pain control managements currently have shown that it is not appropriate to reduce pain and limited efficacy and sometimes unfavorable in some patients. Scrambler (Calmare) therapy, used as an alternative treatment for chronic neuropathic pain recently, is a noninvasive approach to relieve pain by changing pain perception. The author reports the clinical experiences on effectiveness of Scrambler therapy for three patients with intractable pain refractory to conventional treatment.
Chronic Pain* ; Humans ; Neuralgia ; Pain Perception ; Pain, Intractable

Postherpetic neuralgia (PHN) is a debilitating complication of herpes zoster, especially in elderly and comorbid patients. Unfortunately, the currently available treatments have shown limited efficacy and some adverse events that are poorly tolerated in elderly patients. Scrambler Therapy, proposed as an alternative treatment for chronic neuropathic pain recently, is a noninvasive approach to relieve pain by changing pain perception at the brain level. Here, we report our clinical experiences on the effect of Scrambler Therapy for three patients with PHN refractory to conventional treatment.
Aged ; Brain ; Herpes Zoster ; Humans ; Neuralgia ; Neuralgia, Postherpetic ; Pain Perception

PURPOSE: The purpose of this study was to identify effects of EMLA (Eutectic Mixture of Local Anesthetics) cream application on pain perception and pain response during insertion of implanted venous access port needle in children with cancer. METHODS: From December 2010 to August 2011, at U university hospital, 20 patients scheduled for implanted venous access port needle insertion were recruited, and randomly assigned to receive either EMLA or a placebo cream 1 hour before the implanted venous access port needle insertion. While conducting needle insertion, changes in pulse and oxygen saturation on the pulse oxymeter monitor were measured and pain behavior reaction was also measured during needle insertion in the treatment room. After conducting needle insertion, self-reported pain reaction, and mothers' perception of the children's pain reaction were measured. Collected data were statistically processed using SPSS version 17.0 for Windows, and analyzed using descriptive statistics, t-test. RESULTS: Children's self-reported degree of pain, degree of pain as perceived by mothers and pain behavior reaction decreased significantly in the EMLA application group compared with the placebo group. CONCLUSION: Findings indicate that application of EMLA cream is effective in relieving pain in these children during implanted venous access port needle insertion.
Anesthesia ; Child* ; Humans ; Mothers ; Needles* ; Oxygen ; Pain Perception*

Despite current practice there is no evidence to demonstrate the efficacy of intraurethral 2% lidocaine gel as an anesthetic for rigid cystoscopy. To evaluate the usefulness of lidocaine on decreasing pain associated with cystoscopy, we performed a randomized controlled study comparing 2% lidocaine gel with a plain water based lubricant. Pain was recorded on a visual analogue scale by the patient and by the physician. Physician perception of pain experienced by the patient was compared with the actual pain experienced. We found decrease in pain perception in men following lidocaine gel instillation with a 5 or 10 minute dwell time compared to instillation of the plain lubricant.
Anesthetics ; Cystoscopy* ; Humans ; Lidocaine* ; Male ; Pain Perception ; Water