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Given the current high incidence of depression, occupational health nurses in all work settings are likely to encounter many employees who suffer from some form of depression. Depression has the highest medical benefit costs for all behavioral conditions and results in more days of disability than chronic medical conditions such as heart disease, hypertension, diabetes, and lower back pain. Advances in understanding the physiologic changes in the brain which cause depression have lead to development of effective psychopharmacologic agents for treatment. Depressed individuals have the most positive responses with a combination of medication and psychotherapy. Nurses need to assist affected employees to obtain optimal mental health care so they may remain as functional as possible, thereby diminishing the detrimental effects of the illness.
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PMID:Depression in the workplace. Impact on employees. 1086 40

Streptococcus agalactiae is a rare cause of vertebral osteomyelitis. We present four cases of spondylitis caused by this micro-organism and a review of 20 cases previously described in the literature. Only seven patients (29%) were under 50 years of age. Diabetes mellitus and neoplasms were the most frequent underlying conditions, although 37.5% of the patients did not have any predisposition. Neck or back pain was the most common symptom. Diagnosis depended mainly on magnetic resonance imaging. Blood cultures were positive in 50% of the patients. The duration of antibiotic therapy was 6 weeks for most patients. The outcome was favourable, with none of the patients suffering serious sequelae.
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PMID:Vertebral osteomyelitis caused by Streptococcus agalactiae. 1094 45

The existence of diabetes mellitus has been postulated to have a deleterious effect on the outcome following lumbar spine surgery. We retrospectively examined the records and radiographs of 32 diabetic patients (mean age, 60 years) who underwent posterior lumbar fusions using transpedicular instrumentation and iliac crest autograft. Ten patients were insulin-dependent and 22 required oral hypoglycemic agents for at least 1 year prior to surgery. The minimum follow-up time was 2 years after surgery (mean, 2.5 years). Surgical indications included herniated lumbar disk, lumbar spinal stenosis, thoracolumbar trauma, and lumbar pseudarthrosis. Clinical results were evaluated by chart review and/or interview by using Odom's criteria. At follow-up, 75% of patients were graded as excellent or good, and 25% as fair or poor. Twenty-five of 32 patients (78%) had improvement of back pain. Twenty of 27 (74%) patients had improvement of leg pain. Eight of 15 (53%) patients had improvement in motor strength, and 6 of 11 (54%) had improvement in light-touch sensation. Insulin dependence and the presence of polyneuropathy were associated with a poorer outcome. The average time to radiographic fusion was 5 months. Twenty-nine of 32 patients (91%) developed solid fusion by strict radiographic criteria. The three patients with a pseudarthrosis had persistent back pain and a poor result. Ten of 32 (31%) of the patients experienced perioperative complications, including prolonged wound drainage (n = 5), deep wound infection (n = 1), superficial wound infection (n = 1), atrial fibrillation (n = 1), ruptured cerebral aneurysm (n = 1), and ulnar nerve neuropathy (n = 1). We conclude that posterolateral lumbar spinal fusion with internal fixation in diabetic patients yields clinical results comparable to those of nondiabetic patients, with similar risks of perioperative complications.
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PMID:Instrumented posterior arthrodesis of the lumbar spine in patients with diabetes mellitus. 1095 66

The rapidly rising prevalence of obesity, worldwide, has prompted re-evaluations of the definitions and diagnostic criteria, and of the extent of the burden it contributes to health care services. Although categorized arbitrarily for epidemiological purposes according to BMI > 25 kg/m2 ('overweight') and BMI > 30 kg/m2 ('obese'), the disease itself (ICD code E.66) is the process of excess fat accumulation. It leads to multiple organ-specific pathological consequences, particularly if there is a tendency to intra-abdominal fat accumulation. The simplest field method to identify obesity and risk of medical problems is the waist circumference, and this method has found a special role in health promotion. Risks begin with waist > 80 cm (women) or > 94 cm (men). As a broad generalization, obesity produces few symptoms below the age of 40 years, but then several symptoms often develop; tiredness, breathlessness, back pain, arthritis, sweatiness, poor sleeping, depression and menstrual disorders all being common. The symptoms are often attributed to diseases in other body systems. Metabolic diseases like diabetes, hyperlipidaemia and, hypertension develop later, but the mean BMI at diagnosis of diabetes is 28 kg/m2. Ultimately, obesity increases the likelihood of myocardial infarction, stroke and several major cancers, but its biggest impact on health, especially in the elderly, is probably the multiplicity of effects on other body systems. The greatest challenge for public health is to develop effective preventive measures, recognizing that BMI > 25 kg/m2 before the age of 20 years is a very strong predictor of obesity and ill health in adulthood.
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PMID:Pathophysiology of obesity. 1099 48

Spinal epidural abscess (SEA) was first described in the medical literature in 1761 and represents a severe, generally pyogenic infection of the epidural space requiring emergent neurosurgical intervention to avoid permanent neurologic deficits. Spinal epidural abscess comprises 0.2 to 2 cases per 10,000 hospital admissions. This review intends to offer detailed evaluation and a comprehensive meta-analysis of the international literature on SEA between 1954 and 1997, especially of patients who developed it following anesthetic procedures in the spinal canal. In this period, 915 cases of SEA were published. This review is the most comprehensive literature analysis on SEA to date. Most cases of SEA occur in patients aged 30 to 60 years, but the youngest patient was only 10 days old and the oldest was 87. The ratio of men to women was 1:0.56. The most common risk factor was diabetes mellitus, followed by trauma, intravenous drug abuse, and alcoholism. Epidural anesthesia or analgesia had been performed in 5.5% of the patients with SEA. Skin abscesses and furuncles were the most common source of infection. Of the patients, 71% had back pain as the initial symptom and 66% had fever. The second stage of radicular irritation is followed by the third stage, with beginning neurological deficit including muscle weakness and sphincter incontinence as well as sensory deficits. Paralysis (the fourth stage) affected only 34% of the patients. The average leukocyte count was 15,700/microl (range 1,500-42,000/microl), and the average erythrocyte sedimentation rate was 77 mm in the first hour (range 2-50 mm). Spinal epidural abscess is primarily a bacterial infection, and the gram-positive Staphylococcus aureus is its most common causative agent. This is true also for patients who develop SEA following spinal anesthetics. Magnetic resonance imaging (MRI) displays the greatest diagnostic accuracy and is the method of first choice in the diagnostic process. Myelography, commonly used previously to diagnose SEA, is no longer recommended. Lumbar puncture to determine cerebrospinal fluid protein concentrations is not needed for diagnosis and entails the risk of spreading bacteria into the subarachnoid space with consequent meningitis; therefore, it should not be performed. The therapeutic method of choice is laminectomy combined with antibiotics. Conservative treatment alone is justifiable only for specific indications. Laminotomy is a therapeutic alternative for children. The mortality of SEA dropped from 34% in the period of 1954-1960 to 15% in 1991-1997. At the beginning of the twentieth century, almost all patients with SEA died. Parallel to improvements in the mortality rate, today more patients experience complete recovery from SEA. The prognosis of patients who develop SEA following epidural anesthesia or analgesia is not better than that of patients with noniatrogenic SEA, and the mortality rate is also comparable. The essential problem of SEA lies in the necessity of early diagnosis, because only timely treatment is able to avoid or reduce permanent neurologic deficits. The problem with spinal epidural abscesses is not treatment, but early diagnosis - before massive neurological symptoms occur" (Strohecker and Grobovschek 1986).
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PMID:Spinal epidural abscess: a meta-analysis of 915 patients. 1115 48

A retrospective review of thirty-eight patients (16 males and 22 females) with spinal infection between 1993 and 1998 revealed that the mean age was 39.9 years and the peak incidence was in the 5th decade of life. Infections in thirty-two patients (84.2%) were tuberculous in origin, 13.2% were pyogenic and 2.6% were fungal. Back pain was a symptom in 94.7% while 55.8% had neurological deficits, of which two-thirds were tuberculous in origin. Twenty-two patients (57.9%) had an impaired immune status secondary to pulmonary either tuberculosis, diabetes mellitus, intravenous drug abuse, prolonged steroid treatment, malnutrition, or advanced age. History of contact with tuberculous patients was elicited in 31.3%, extraskeletal tuberculosis was found in 28.1%, while Mantoux test was only positive in 53.1% of tuberculous patients. Majority of the cases (57.9%) involved lumbar vertebra. The histopathological examination was only positive in 22.2% from material taken via CT guided biopsy but 93.3% were found to be conclusive from open biopsy. 4 out of 5 patients who had a pyogenic infection were treated conservatively and produced a good result. There was no difference in outcome for tuberculosis patients treated with either the 3 drug or 4 drug regimen. Anterior decompression and bone grafting in tuberculous patients was superior in terms of a faster fusion rate, early pain relief and prevention of kvphotic deformity. The initial neurological deficit did not reflect the future prognosis of patients with spinal infection.
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PMID:Spinal infection--an overview and the results of treatment. 1120 39

Case reports and case series have identified putative risk factors for the development of bilateral massive adrenal hemorrhage (BMAH) in humans. The anatomy and physiology of the adrenal gland allow development of a model to fit the pathophysiology behind these risk factors. Until now, these risk factors were not systematically tested using analytical epidemiologic studies. A case-control study was undertaken using sources of cases and controls from multiple teaching hospitals in Ontario, Canada. The results of multivariate logistic regression indicated that thrombocytopenia (odds ratio [OR] = 14.6, 95% confidence intervals [CI] = 3.0-70.1, p < 0.001), heparin exposure of any route or type beyond 3 days (4-6 days: OR = 17.0, CI = 1.9-154.6; > 6 days: OR = 33.5, CI = 4.3-262.6; p < 0.001), and sepsis (OR = 6.3, CI = 1.2-32.2, p = 0.019) were most strongly and independently associated with development of BMAH. Another weaker positive association included invasive radiologic procedure (OR = 4.4, CI = 0.9-22.1, p = 0.055). Neither major surgery or duration of hospitalization were independent risk factors. Although coronary artery disease and possibly diabetes and hypertension appeared to be markers for lower risk of BMAH, this may be a result of bias introduced by using hospital controls ("Berkson bias"), as the effect was not explained by a protective effect of vasoactive medications. Thus, a picture of the high-risk patient should include a patient who has been treated with heparin (any route or type) beyond 3 days and has had thrombocytopenia (not necessarily induced by heparin) during the course of an illness. If the setting includes unexplained abdominal, chest, or back pain; fever; confusion; hypotension or shock; abrupt anemia; or electrolyte disorders, clinicians should not hesitate to cover empirically with lifesaving glucocorticoids while awaiting results of confirmatory tests.
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PMID:Bilateral massive adrenal hemorrhage. Assessment of putative risk factors by the case-control method. 1120 2

We studied the spectrum of septic discitis presenting to two busy district general hospitals over 2.5 years (November 1996 to April 1999), surveying the case notes of all patients attending Royal Bournemouth and Poole Hospitals with probable septic discitis on magnetic resonance imaging (MRI). Twenty-two cases of septic discitis were identified, suggesting an annual incidence of 2/100 000/year. Seventy-three percent of patients were aged > or =65 years. In 91% of patients, back pain was the presenting symptom, with neurological signs evident in 45% of patients. Fever >37.5 degrees C was present in 68% of patients, and a marked elevation of erythrocyte sedimentation rate (ESR) in 91%. Diagnosis was originally by MRI in 86% of patients, with plain radiographs not diagnostic of discitis in the early stages of the infection. Staphylococcus aureus was the commonest pathogen (41%), but in 18% of patients, no organism was identified. The major predisposing factors to septic discitis were invasive procedures (41%), underlying cancer (25%) and diabetes (18%). Pre-existing degenerative spinal disease was found in 50% of patients. Four patients whose causative organism was not isolated had a poorer outcome: one death and three with increased morbidity. Our estimated incidence rate (2/100 000/year) is higher than that in previous studies and may be due to a higher detection rate with MRI and/or a genuine increase in the number of cases. Septic discitis should be considered in any patient who has severe localized pain at any spinal level, especially if accompanied by fever and elevated ESR, or in the immunosuppressed.
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PMID:A case ascertainment study of septic discitis: clinical, microbiological and radiological features. 1152 9

The treatment of patients with autoimmune pancreatitis poses a challenge to the clinician. Prednisone, in an initial dosage of 30 to 40 mg/d, is used in patients with moderate abdominal and back pain, obstructive jaundice, or sclerosing cholangitis. Antacid or anticholinergic agents may be used to minimize stimulation of pancreatic exocrine function. Patients with quiescent disease may not need pharmacologic medication. In patients with complications such as obstructive jaundice and infection, biliary drainage and administration of antibiotics are recommended prior to steroid therapy. Steroid therapy occasionally ameliorates diabetes mellitus associated with autoimmune pancreatitis.
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PMID:Autoimmune-related Pancreatitis. 1156 Jul 84

Public health guidelines primarily focus on the promotion of physical activity and steady-state aerobic exercise, which enhances cardiorespiratory fitness and has some impact on body composition. However, research demonstrates that resistance exercise training has profound effects on the musculoskeletal system, contributes to the maintenance of functional abilities, and prevents osteoporosis, sarcopenia, lower-back pain, and other disabilities. More recent seminal research demonstrates that resistance training may positively affect risk factors such as insulin resistance, resting metabolic rate, glucose metabolism, blood pressure, body fat, and gastrointestinal transit time, which are associated with diabetes, heart disease, and cancer. Research also indicates that virtually all the benefits of resistance training are likely to be obtained in two 15- to 20-min training sessions a week. Sensible resistance training involves precise controlled movements for each major muscle group and does not require the use of very heavy resistance. Along with brief prescriptive steady-state aerobic exercise, resistance training should be a central component of public health promotion programs.
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PMID:Potential health-related benefits of resistance training. 1167 93


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