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C A Agudelo

Publications and source records attributed to C A Agudelo.

At least 37 records · Page 2Linked to original sources
PubMed1992

Presenting features and outcomes in patients undergoing temporal artery biopsy. A review of 98 patients.

BACKGROUND: Although temporal arteritis is a well-recognized syndrome, controversy still exists regarding the optimal approach to diagnosis and treatment of this condition. We undertook this review to further define the spectrum of presenting features and outcomes of patients undergoing temporal artery biopsy. METHODS: We reviewed the records of all patients undergoing temporal artery biopsy over a 5-year period. Presenting features were compared in biopsy-positive and biopsy-negative patients. In patients with positive biopsy specimens, treatment regimens, disease, treatment-related morbidity, and outcomes were recorded. Alternative diagnoses and therapy were reviewed in biopsy-negative patients. RESULTS: Of 98 patients, 30 had positive and 68 had negative biopsy specimens. Biopsy-positive patients had an increased incidence of headache (93% vs 62%), jaw claudication (50% vs 18%), and prior polymyalgia rheumatica (23% vs 3%), but the sensitivity and specificity of these indicators were relatively low. Other clinical and laboratory parameters, including prior steroids and erythrocyte sedimentation rate, were similar between the two groups. In 30 patients with positive biopsy specimens, response to initial high-dose steroid was excellent. Serious manifestations after initial treatment were not seen, but mild flares were common after 1 year of therapy. Steroid-related morbidity was common, and steroids were seldom discontinued (0/22 patients at 1 year, 6/19 patients at 2 years, 5/11 patients at 3 years). In 68 patients with negative biopsy specimens, alternative diagnoses included neurologic diseases (15 patients), "pure" polymyalgia rheumatica (14 patients), and other inflammatory rheumatologic diseases (10 patients). Fourteen patients with negative biopsy specimens were treated for temporal arteritis, and were similar to biopsy-positive patients. CONCLUSIONS: Temporal arteritis remains a challenging condition to diagnose and to treat. Presenting features are seldom helpful in predicting biopsy results. Initial treatment is effective but frequently toxic. Although late disease-related complications are rare, most patients continue to take long-term low-dose steroid therapy.

Adrenal Cortex Hormones↗
PubMed1992

Antineutrophil cytoplasmic antibodies: clinical characteristics of 10 patients with the perinuclear pattern of immunofluorescence on ANCA testing.

Antineutrophil cytoplasmic antibodies (ANCA) have recently been described in association with necrotizing glomerulonephritis, systemic vasculitis, and other autoimmune-mediated connective tissue diseases, including systemic lupus erythematosus (SLE) and polychondritis. At least two distinct classes of ANCA have been described, differentiated by characteristic immunofluorescence patterns using neutrophils as substrate for indirect immunofluorescence assay (IFA). A focal, centrally accentuated, finely granular cytoplasmic staining pattern (c-ANCA) is both sensitive and specific for Wegener's granulomatosis (WG) and is thus a useful clinical adjunct in the diagnosis and monitoring of disease activity in WG. The second class of ANCA, defined by a perinuclear immunofluorescent staining pattern (p-ANCA) on standardized IFA, has not been studied as extensively. It appears to occur in a variety of connective tissue diseases, most often necrotizing glomerulonephritis other than WG, systemic vasculitis with renal involvement, and SLE. In screening more than 2000 serum samples received in our rheumatology laboratory for ANA testing, we found p-ANCA in 10 patients. All 10 had evidence of systemic autoimmune disease, though with wide variation in extent and severity of disease. All 10 had other autoantibodies, most frequently ANA (60%). Our studies suggest that p-ANCA define a heterogeneous patient population with a spectrum of autoimmune disease, most frequently necrotizing glomerulonephritis and systemic vasculitis. Future studies will establish the role of p-ANCA in clinical medicine and broaden our understanding of the origin and possible pathogenesis of ANCA and autoantibodies in general.

Antibodies, Antineutrophil Cytoplasmic↗
PubMed1991

Temporal arteritis with low erythrocyte sedimentation rate: a review of five cases.

We compared 5 patients who had biopsy-proven temporal arteritis and erythrocyte sedimentation rates (ESR) less than 50 mm/hour with 25 patients who had temporal arteritis and high ESR and with 10 patients who had negative temporal artery biopsy results and low ESR. Patients with low-ESR temporal arteritis were similar to the other groups, except that they had a higher mean hemoglobin level than the high-ESR group and a significant increase in the percentage of patients (4 of 5) who had a previous diagnosis of polymyalgia rheumatica or had received steroid therapy compared with either of the other groups. The latter finding suggests that even low-dose steroid therapy can lower the ESR in patients with temporal arteritis. We conclude that the ESR is low in only a small percentage of patients with temporal arteritis, and that most of these patients have a history of polymyalgia rheumatica or steroid therapy.

Aged↗
PubMed1991

Gout and hyperuricemia.

Although our understanding of hyperuricemia and gout has changed little over the past several years, questions remain in defining the many metabolic abnormalities that can result in these problems. In the past year, several papers have further addressed heritable mechanisms for the development of hyperuricemia, as well as environmental factors that contribute to its onset in adulthood. Consequences of hyperuricemia other than clinical gout have received further attention. Although typical gout is easily recognized and treated, several recent papers have addressed atypical presentations of gout, as well as other causes of podagra that might have been attributed previously to gout. The treatment of patients whose disease is uncomplicated by other conditions remains straightforward. However, the presentation of gout in patients with multiple comorbidities not only increases recognition of the toxicity of nonsteroidal anti-inflammatory drugs and colchicine, but often requires innovative approaches to its treatment.

Adult↗
PubMed1988

Comparison of parotid and minor salivary gland biopsy specimens in the diagnosis of Sjögren's syndrome.

We conducted a prospective study comparing minor salivary gland and parotid gland biopsy specimens obtained simultaneously from 24 patients who were undergoing evaluation for primary Sjögren's syndrome (SS). Adequate tissue for study was obtained with all minor salivary gland biopsies and 19 of 24 parotid gland biopsies. Parotid inflammation was seen in 6 of 11 patients whose minor salivary gland biopsy results indicated SS, but in none of 8 patients who had normal findings on minor salivary gland biopsy. Patients with parotid inflammation were older and had a higher frequency of dry eyes and mouth, abnormal results on Schirmer's test, serious extraglandular involvement, and serologic abnormalities. We conclude that parotid gland biopsy adds very little to the minor salivary gland biopsy in the diagnosis of primary SS, but that parotid inflammatory changes may reflect disease duration and/or severity.

Aged↗
PubMed1988

Pure red cell aplasia in procainamide induced systemic lupus erythematosus. Report and review of the literature.

We describe a patient who developed pure red cell aplasia as part of a lupus-like syndrome while taking procainamide. Pure red cell aplasia resolved spontaneously after discontinuation of this drug. Although pure red cell aplasia has been reported in several patients with idiopathic systemic lupus erythematosus (SLE), this represents the first such report in a patient with drug induced SLE.

Aged↗
PubMed1988

Optic neuropathy as an initial manifestation of Sjögren's syndrome.

Although optic neuropathy is a known complication of systemic lupus erythematosus, its association with other connective tissue diseases is less well documented. We describe 3 previously asymptomatic women presenting with optic neuropathy in whom changes highly suggestive of primary Sjögren's syndrome (SS) were found by minor salivary gland biopsy 1-6 years after initial presentation. Typical symptoms of SS were absent initially and developed slowly, while serologic abnormalities were consistently present. Optic neuropathy may be a presenting neurologic feature of SS and may antedate typical signs and symptoms of SS. Primary SS should be considered in the differential diagnosis of optic neuropathy.

Adult↗
PubMed1987

The assessment of pain in rheumatoid arthritis. Validity of a behavioral observation method.

It is difficult to objectively measure pain in rheumatoid arthritis (RA). A behavioral observation method for the assessment of RA pain has been developed. In this study, videotapes were made of 53 RA patients while they performed standardized maneuvers. Trained raters viewed the videotapes and recorded the frequencies of 7 pain behaviors. Clinical and laboratory measures of rheumatoid disease activity also were recorded for each patient. Rheumatology fellows viewed 20 randomly chosen video recordings of the patients and made global estimates of the intensity and unpleasantness of pain. Significant positive correlations were found between total pain behavior scores and measures of disease activity. The fellows' estimates of the intensity and unpleasantness of the patients' pain also were significantly and positively correlated with the total pain behavior scores. The behavioral observation method may be useful in the assessment of RA pain and may be included as an objective outcome measure in clinical trials with RA patients.

Adult↗
PubMed1987

Effects of psychological therapy on pain behavior of rheumatoid arthritis patients. Treatment outcome and six-month followup.

A randomized clinical trial was performed to evaluate a psychological treatment intervention and a social support program, compared with a control program in which no adjunct treatment was rendered, and their effects upon pain behavior, affect, and disease activity of 53 patients with rheumatoid arthritis. The psychological intervention produced significant reductions in patients' pain behavior and disease activity at posttreatment. Significant reductions were also observed in trait anxiety at posttreatment and 6-month followup. Relaxation training may have been the most important component of the psychological intervention. The social support program produced a significant reduction in trait anxiety only at posttreatment. This is the first well-controlled study to demonstrate reduced pain behavior, disease activity, and trait anxiety following psychological treatment.

Adult↗
PubMed1987

Human parvovirus B19 arthropathy in two adults after contact with childhood erythema infectiosum.

An arthropathy has been recently described in association with human parvovirus infection (HPV-B19). Human parvovirus B19 has also been implicated as the etiologic agent in erythema infectiosum, a childhood exanthem that may occur in adults in association with joint manifestations. In this study, two adults are described, in whom an acute arthropathy and rash developed after contact with children with erythema infectiosum.

Adult↗
PubMed1987

Synovial fluid lipid abnormalities in various disease states: review and classification.

Although lipids are not usually present in large quantities in normal synovial fluids or in the usual synovial fluid seen in most rheumatologic conditions, their presence in synovial fluid may have diagnostic importance. As summarized in Table 2, analysis of synovial fluids for lipid constituents is relatively simple. On standing or after centrifugation, significant amounts of lipids may layer out and be visible as a supernatant. On microscopic examination, lipid droplets are usually easily seen and should be stainable with appropriate dyes (oil red O or Sudan III or IV), or may occasionally be visualized as intracellular or extracellular inclusions by polarized microscopy. Small (0.5 to 2.0 microns) intracellular inclusions containing triglycerides may be seen in neutrophils from most synovial fluids, and are of no diagnostic importance. Cholesterol crystals may be readily recognized microscopically by their characteristic flat, plate-like appearance and notched corners Synovial fluid may also be analyzed for cholesterol and triglycerides in routine clinical laboratories, and free fatty acids and lipolytic enzymes in special lipid laboratories. The presence of massive increases in cholesterol associated with microscopically visible cholesterol crystals is usually associated with chronic RA, occasionally in the setting of super-imposed bacterial infection. The presence of gross or microscopic lipid droplets is usually associated with trauma and hemorrhagic effusions. When present in this setting, the clinician should entertain a high suspicion for a significant intraarticular injury, such as fracture, meniscal tear, or severe ligamentous injury. In addition, however, several instances of non-traumatic inflammatory effusions associated with intracellular and extracellular lipid droplets have been reported.(ABSTRACT TRUNCATED AT 250 WORDS)

Cholesterol↗
PubMed1987

The assessment of pain in rheumatoid arthritis: disease differentiation and temporal stability of a behavioral observation method.

An observation method for the assessment of pain behaviors in patients with rheumatoid arthritis (RA) has been developed. We investigated the extent to which the frequencies of pain behaviors differentiated patients with RA and patients with chronic low back pain from depressed and nondepressed, pain free, control subjects. The reliability of the pain behavior frequencies of patients with RA across 2 observation sessions also was determined. Total pain behavior scores clearly differentiated patients with RA and low back pain from depressed and nondepressed, pain free, control subjects. Pain behavior observed in patients with RA showed a high degree of stability over time. The results of our study suggest that the behavioral observation method will prove useful in the assessment of RA pain in clinical and research settings.

Adult↗