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Search Results: 1 - 10 of 139234 matches for " Celso Darío;Santos "
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Brain SPECT imaging in Huntington's disease before and after therapy with olanzapine: case report
Arquivos de Neuro-Psiquiatria , 1999, DOI: 10.1590/S0004-282X1999000500021
Abstract: olanzapine, an atypical antipsychotic drug, was administered to a patient with huntington's disease (hd) with marked choreiform movements. brain spect with 99mtc-hmpao was performed before and after treatment. brain spect imaging has been performed in patients with hd in order to determine the status of basal ganglia perfusion. the use of brain spect with 99mtc-hmpao before and after treatment in patients with hd has not been yet reported. the marked hypoperfusion of the basal ganglia on brain spect performed before therapy with olanzapine improved significantly after treatment.
Brain SPECT in mesial temporal lobe epilepsy: comparison between visual analysis and SPM
Amorim, Bárbara Juarez;Ramos, Celso Darío;Santos, Allan Oliveira dos;Lima, Mariana da Cunha Lopes de;Min, Li Li;Camargo, Edwaldo Eduardo;Cendes, Fernando;Etchebehere, Elba Cristina Sá de Camargo;
Arquivos de Neuro-Psiquiatria , 2010, DOI: 10.1590/S0004-282X2010000200001
Abstract: objective: to compare the accuracy of spm and visual analysis of brain spect in patients with mesial temporal lobe epilepsy (mtle). method: interictal and ictal spects of 22 patients with mtle were performed. visual analysis were performed in interictal (visual(inter)) and ictal (visual(ictal/inter)) studies. spm analysis consisted of comparing interictal (spm(inter)) and ictal spects (spm(ictal)) of each patient to control group and by comparing perfusion of temporal lobes in ictal and interictal studies among themselves (spm(ictal/inter)). results: for detection of the epileptogenic focus, the sensitivities were as follows: visual(inter)=68%; visual(ictal/inter)=100%; spm(inter)=45%; spm(ictal)=64% and spm(ictal/inter)=77%. spm was able to detect more areas of hyperperfusion and hypoperfusion. conclusion: spm did not improve the sensitivity to detect epileptogenic focus. however, spm detected different regions of hypoperfusion and hyperperfusion and is therefore a helpful tool for better understand pathophysiology of seizures in mtle.
Functional electrical stimulation improves brain perfusion in cranial trauma patients
Amorim, Bárbara Juarez;Santos, Allan de Oliveira;Oberg, Telma Dagmar;Romanato, Juliana;Anjos, Dalton A.;Lima, Mariana da Cunha Lopes de;Ramos, Celso Darío;Honorato, Donizete Cesar;Camargo, Edwaldo Eduardo;Etchebehere, Elba Cristina de Sá Camargo;
Arquivos de Neuro-Psiquiatria , 2011, DOI: 10.1590/S0004-282X2011000500020
Abstract: objective: demonstrate brain perfusion changes due to neuronal activation after functional electrical stimulation (fes). method: it was studied 14 patients with hemiplegia who were submitted to a program with fes during fourteen weeks. brain perfusion spect was performed before and after fes therapy. these patients were further separated into 2 groups according to the hemiplegia cause: cranial trauma and major vascular insults. all spect images were analyzed using spm. results: there was a significant statistical difference between the two groups related to patient's ages and extent of hypoperfusion in the spect. patients with cranial trauma had a reduction in the hypoperfused area and patients with major vascular insult had an increase in the hypoperfused area after fes therapy. conclusion: fes therapy can result in brain perfusion improvement in patients with brain lesions due to cranial trauma but probably not in patients with major vascular insults with large infarct area.
Gallium-67 imaging in a patient with paracoccidioidomycosis: a case report
TEIXEIRA, Ana Beatriz Marinho de Jesus;ETCHEBEHERE, Elba Cristina Sá de Camargo;LIMA, Mariana Cunha Lopes de;SANTOS, Allan de Oliveira;PIRES, Bruno Cunha;VALEN?A JR., José Telmo;RAMOS, Celso Darío;CAMARGO, Edwaldo E.;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2000, DOI: 10.1590/S0036-46652000000300011
Abstract: a 26 year-old female was admitted with abdominal pain, fever and weight loss. the clinical and laboratory investigations led to the diagnosis of paracoccidioidomycosis. gallium-67 whole body images correlated well with the clinical course of the disease and with the patient's prognosis.
Treatment of bone pain secondary to metastases using samarium-153-EDTMP
Etchebehere, Elba Cristina Sá de Camargo;Pereira Neto, Carlos Araújo Cunha;Lima, Mariana Cunha Lopes de;Santos, Allan de Oliveira;Ramos, Celso Darío;Silva, Cleide Maria;Camargo, Edwaldo Eduardo;
Sao Paulo Medical Journal , 2004, DOI: 10.1590/S1516-31802004000500006
Abstract: context: more than 50% of patients with prostate, breast or lung cancer will develop painful bone metastases. the purpose of treating bone metastases is to relieve pain, reduce the use of steroids and to maintain motion. objective: to evaluate the use of samarium-153-edtmp (153sm-edtmp) for the treatment of bone pain secondary to metastases that is refractory to clinical management. type of study: retrospective. setting: division of nuclear medicine, universidade estadual de campinas (unicamp). methods: fifty-eight patients were studied (34 males) with mean age 62 years; 31 patients had prostate cancer, 20 had breast cancer, three had lung cancer, one had lung hemangioendothelioma, one had parathyroid adenocarcinoma, one had osteosarcoma and one had an unknown primary tumor. all patients had multiple bone metastases demonstrated by bone scintigraphy using 99mtc-mdp,and were treated with 153sm-edtmp. response to treatment was graded as good (pain reduction of 50-100%), intermediate (25-49%) and poor (0-24%). results: all patients showed good uptake of 153sm-edtmp by bone metastases. among the patients with prostate cancer, intermediate or good response to therapy occurred in 80.6% (25 patients) and poor response in 19.4% (6). among the patients with breast cancer, 85% (17) showed intermediate or good response to therapy while 15% (3) showed poor response. all three patients with lung cancer showed poor response to treatment. the lung hemangioendothelioma and unknown primary lesion patients showed intermediate response to treatment; the osteosarcoma and parathyroid adenocarcinoma patients showed good response to treatment. no significant myelotoxicity occurred. discussion: pain control is important for improving the quality of life of patients with advanced cancers. the mechanism by which pain is relieved with the use of radionuclides is still not yet completely understood, however, the treatment is simple and provides a low risk of mielotoxicity. conclusion: treatmen
Low sensitivity of three-phase bone scintigraphy for the diagnosis of repetitive strain injury
Amorim, Bárbara Juarez;Etchebehere, Elba Cristina Sá de Camargo;Torre, Graciella Dalla;Lima, Mariana da Cunha Lopes de;Santos, Allan de Oliveira;Ramos, Celso Darío;Gonzalez, Luiz Ricardo;Oliveira, José Inácio;Camargo, Edwaldo Eduardo;
Sao Paulo Medical Journal , 2006, DOI: 10.1590/S1516-31802006000300007
Abstract: context and objective: the diagnosis of repetitive strain injury (rsi) is subjective and solely based on clinical signs and physical examination. the aim of this paper was to assess the usefulness of three-phase bone scintigraphy (tpbs) in diagnosing rsi. design and setting: prospective study at the division of nuclear medicine, department of radiology, school of medical sciences, universidade estadual de campinas (unicamp). methods: seventy-three patients (mean age 31.2 years; 47 males) with clinical suspicion of rsi in the upper limbs were studied. a total of 127 joints with suspicion of rsi were studied. the shoulders, elbows and wrists were analyzed semi-quantitatively, using the shafts of the humeri and ulnae as references. the results were compared with a control group of 40 normal individuals. the patients? signs and symptoms were used as the "gold standard" for calculating the probabilities. results: from visual analysis, abnormalities were observed in the flow phase for four joints, in the blood pool phase for 11 joints and in the delayed images for 26 joints. visual analysis of the joints of the control group did not show any abnormalities. semi-quantitative analysis showed that most of the patients? joint ratios were normal. the exceptions were the wrists of patients with left-sided rsi (p = 0.0216). however, the sensitivity (9%) and accuracy (41%) were very low. conclusion: tpbs with semi-quantitative analysis has very low sensitivity and accuracy in the detection of rsi abnormalities in the upper limbs.
Estimation of absolute renal uptake with technetium-99m dimercaptosuccinic acid: direct comparison with the radioactivity of nephrectomy specimens
Lima, Mariana da Cunha Lopes de;Ramos, Celso Darío;Brunetto, Sérgio Quirino;Lima, Marcelo Lopes de;Ferreira, Ubirajara;Etchebehere, Elba Cristina Sá Camargo;Santos, Allan de Oliveira;Netto Júnior, Nelson Rodrigues;Camargo, Edwaldo Eduardo;
Sao Paulo Medical Journal , 2008, DOI: 10.1590/S1516-31802008000300003
Abstract: context and objective: studies using radionuclides are the most appropriate method for estimating renal function. dimercaptosuccinic acid chelate labeled with technetium-99m (99mtc-dmsa) is the radiopharmaceutical of choice for high-resolution imaging of the renal cortex and estimation of the functional renal mass. the aim of this study was to evaluate a simplified method for determining the absolute renal uptake (aru) of 99mtc-dmsa prior to nephrectomy, using the radioactivity counts of nephrectomy specimens as the gold standard. design and setting: prospective study at the division of nuclear medicine, department of radiology, universidade estadual de campinas. methods: seventeen patients (12 females; range 22-82 years old; mean age 50.8 years old) underwent nephrectomy for various reasons. renal scintigraphy was performed three to four hours after intravenous administration of a mean dose of 188.7 mbq (5.1 mci) of 99mtc-dmsa, which was done six to 24 hours before surgery. the in vivo renal uptake of 99mtc-dmsa was determined using the radioactivity of the syringe before the injection (measured using a dose calibrator) and the images of the syringe and kidneys, obtained from a scintillation camera. after surgery, the reference value for renal uptake of 99mtc-dmsa was determined by measuring the radioactivity of the nephrectomy specimen using the same dose calibrator. results: the aru measurements were very similar to those obtained using the reference method, as determined by linear regression (r-squared = 0.96). conclusion: aru estimation using the proposed method before nephrectomy seems to be accurate and feasible for routine use.
Taxonomia de Anisepyris Kieffer (Hymenoptera, Bethylidae) da Mata Atlantica Brasileira
Santos, Lucyane M. dos;Azevedo, Celso O.;
Revista Brasileira de Entomologia , 2008, DOI: 10.1590/S0085-56262008000300004
Abstract: species of anisepyris kieffer, 1905, from 31 sites along the atlantic rain forest were studied. a. basilongus santos sp. nov., a. foveapertus santos sp. nov., a. artus santos sp. nov., a. basilargus santos sp. nov., a. cepus santos sp. nov. and a. ramosus santos sp. nov. were described and illustrated. sixteen previously described species were analyzed and had their distribution broadened: a. amazonicus westwood, 1874, a. bifidus evans, 1966, a. bipartitus santos & azevedo, 2000, a. delicatus evans, 1966, a. dentatus santos & azevedo, 2000, a. divisus santos, 2002, a. inconspicuus santos, 2002, a. lobatus santos & azevedo, 2000, a. longimerus santos & azevedo, 2000, a. nigripes evans, 1966, a. proteus evans, 1966, a. rotundus santos, 2002, a. similis santos & azevedo, 2000, a. triangularis moreira & azevedo, 2003, a. trinitatis evans, 1966 and a. tuberosus santos & azevedo, 2000. anisepyris bipartitus, a. dentatus, a. similis and a. trinitatis are recorded for the first time from the atlantic rain forest.
Primera cita de la especie Goniozus legneri (Hymenoptera: Bethylidae) en el Alto Valle de Río Negro, Patagonia Argentina
Garrido,Silvina; Cichón,Liliana; Fernández,Darío; Azevedo,Celso;
Revista de la Sociedad Entomol?3gica Argentina , 2005,
Abstract: first record of goniozus legneri gordh, parasitizing larva of cydia pomonella (l), "codlingh moth", in apple and walnut orchard from the alto valle de río negro. discover, morphology, distribution, biology, and influence on the "codling moth" population are briefly commented.
Primera cita de la especie Goniozus legneri (Hymenoptera: Bethylidae) en el Alto Valle de Río Negro, Patagonia Argentina First record of the species Goniozus legneri Gordh in the Alto Valle de Río Negro, Patagonia, Argentina
Silvina Garrido,Liliana Cichón,Darío Fernández,Celso Azevedo
Revista de la Sociedad Entomol?3gica Argentina , 2005,
Abstract: Se reporta por primera vez para la zona del Alto Valle de Río Negro, a Goniozus legneri Gordh, parasitando naturalmente larvas de Cydia pomonella (L), "carpocapsa", en montes comerciales de manzanos y nogales. Se comentan brevemente su hallazgo, características morfológicas, distribución, biología e influencia en las poblaciones de "carpocapsa". First record of Goniozus legneri Gordh, parasitizing larva of Cydia pomonella (L), "codlingh moth", in apple and walnut orchard from the Alto Valle de Río Negro. Discover, morphology, distribution, biology, and influence on the "codling moth" population are briefly commented.
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