Articles: back-pain.
-
Chronic pain is maladaptive and influences brain function and behavior by altering the flow and integration of information across brain regions. Here we use a power spectral analysis to investigate impact of presence of chronic pain on brain oscillatory activity in humans. We examine changes in BOLD fluctuations, across different frequencies, in chronic back pain (CBP) patients (n = 15) as compared to healthy controls (n = 15) during resting-state fMRI. ⋯ In the patients a correlation analysis related the mPFC aberrant BOLD high-frequency dynamics to altered functional connectivity to pain signaling/modulating brain regions, thus linking BOLD frequency changes to function. We also found that increased frequency fluctuations within the mPFC were temporally synchronous with spontaneous pain changes in patients during a pain-rating task. These observations provide novel insights about the nature of CBP, identifying how it disturbs the resting brain, and link high-frequency BOLD oscillations to perception.
-
As a rule vertebroplasty and kyphoplasty can prevent further collapse of a previously broken vertebra. Pain is probably caused by collapse of the porous bone resulting in instability of the vertebra. Stabilization of the vertebra by injecting cement results in a clear improvement in the complaint and a clear reduction in pain resulting in better mobilization. ⋯ In approximately 15-45% of patients the zygapophyseal joint is the cause of the back pain. Anesthesia of the zygapophyseal joint can be carried out by direct intra-articular application of a local anesthetic or by a block of the medial branch of the posterior branch of each of two spinal nerves. The simplest method is by computed tomography-guided zygapophyseal block.
-
Research on how race affects access to analgesia in the emergency department (ED) has yielded conflicting results. We assessed whether patient race affects analgesia administration for patients presenting with back or abdominal pain. ⋯ After controlling for potential confounders, nonwhite patients who presented to the ED for abdominal or back pain were less likely than whites to receive analgesia and waited longer for their opiate medication.
-
Acta Anaesthesiol Scand · Sep 2011
ReviewNeuraxial techniques in patients with pre-existing back impairment or prior spine interventions: a topical review with special reference to obstetrics.
Many anaesthetists consider neurological disorders of all kinds as a contraindication for regional anaesthesia particularly for neuraxial techniques. This hesitation is partly rooted in fears of medicolegal problems but also in the heterogeneous literature. Therefore, the present topical review is an attempt to describe the feasibility and the risks of neuraxial techniques in patients with spinal injury, anatomical compromise, chronic back pain or previous spinal interventions, ranging from 'minor' types like epidural blood patches to major surgery such as Harrington fusions. ⋯ When necessary, patients should have additional technical and clinical examinations as close as possible to surgery to establish the actual pre-operative status. Most patients may benefit more from spinal techniques rather than from less reliable epidural ones. High concentrations and volumes of local anaesthetics should be avoided at all times, especially in patients with nerve compression, large disc herniation or spinal stenosis.
-
To determine the prevalence of disabling and non-disabling back pain across age in older adults, and identify risk factors for back pain onset in this age group. ⋯ Prevalence of disabling and non-disabling back pain was 6 and 23%, respectively. While prevalence of non-disabling back pain did not vary significantly across age (χ²trend : 0.90; P = 0.34), the prevalence of disabling back pain increased with age (χ²trend : 4.02; P = 0.04). New-onset disabling and non-disabling back pain at follow-up was 15 and 5%, respectively. Risk factors found to predict back pain onset at follow-up were: poor self-rated health (RR 3.8; 95% CI 1.8, 8.0); depressive symptoms (RR 2.2; 95% CI 1.3, 3.7); use of health or social services (RR 1.7; 95% CI 1.1, 2.7); and previous back pain (RR 2.1; 95% CI 1.2-3.5). From these, poor self-rated health, previous back pain and depressive symptoms were found to be independent predictors of pain onset. Markers of social networks were not associated with the reporting of back pain onset. Conclusion. The risk of disabling back pain rises in older age. Older adults with poor self-rated health, depressive symptoms, increased use of health and social services and a previous episode of back pain are at greater risk of reporting future back pain onset.