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1.
Acta Orthop Belg ; 90(1): 96-101, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38669657

RESUMO

Fear of movement, pain, and loss of shoulder function are the most common problems irrespective of their approach to management after proximal humeral fracture (PHF). However, it has been unclear whether there could be differences between both treatments in early clinical outcomes. It can help physiotherapists to guide in choosing treatment approaches. This study aimed to compare kinesiophobia, pain, range of motion (ROM), shoulder function, and Quality of life (QoL) in patients treated with either conservative (CT) versus surgical (ST) after PHF. In addition, it aimed to determine correlations between fear of movement and seconder outcome measures. This cross-sectional study enrolled the patients having 5-6 weeks (being permitted active movement) after being treated either CT or ST and receiving no physical therapy. Pain, passive and active ROMs, shoulder function, fear of movement, and QoL were evaluated. 42 patients were recruited. Kinesiophobia scores were similar (p=0.55) and moderate in both groups. There was a significant difference in degrees of shoulder active flexion, active and passive abduction in favor of the CT group (p=0.05, p=0.02, p=0.04, respectively). However, there was no difference between groups regarding the remaining clinical outcomes. Furthermore, kinesiophobia showed a moderate negative correlation with energy/fatigue, social functioning, and general health. These findings showed that patients treated surgically did not have more kinesiophobia, less function, and QoL before starting physiotherapy, despite having soft tissue damage and different types of fractures. However, surgically treated patients had significantly less range of motion.


Assuntos
Tratamento Conservador , Modalidades de Fisioterapia , Qualidade de Vida , Amplitude de Movimento Articular , Fraturas do Ombro , Humanos , Feminino , Masculino , Fraturas do Ombro/cirurgia , Fraturas do Ombro/psicologia , Estudos Transversais , Pessoa de Meia-Idade , Tratamento Conservador/métodos , Idoso , Resultado do Tratamento , Adulto , Medo/psicologia , Fixação Interna de Fraturas/métodos
2.
Niger J Clin Pract ; 23(4): 539-544, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32246662

RESUMO

BACKGROUND: Anal fissure which is defined as a longitudinal tear in anoderm below the dentate line is one of the most common benign diseases of anorectal area. Severe pain during the defecation and emotional stress that it causes may reduce people's quality of life. AIMS: In this randomized clinical trial, we aimed to compare the efficiency of the topical ointment with medical treatment and surgical lateral internal sphincterotomy. METHOD: This is a randomized clinical trial of 550 patients who were treated for chronic anal fissure. Patients were randomly divided into 4 groups according to the treatment type they received. RESULTS: In a vast majority of the patients, the primary complaint was pain (92.3%) and bleeding during defecation (62%). Both pain relief and healing of the fissure, which are the components of response to treatment, had not been observed in 56 (37.3%) patients of topical nitroglycerin ointment group until the second month. Among the recalcitrant patients in both topical nitroglycerin (56) and topical diltiazem ointment (47) groups, 27 (48.2%), and 36 (76.5%) patients underwent surgery, respectively. The best response to treatment was also obtained in lateral internal sphincterotomy group. CONCLUSION: LIS is still the gold standard for the treatment of chronic anal fissure when the physicians would like to avoid recurrence and obtain the best pain relief.


Assuntos
Fissura Anal , Esfincterotomia , Doença Crônica , Diltiazem/uso terapêutico , Fissura Anal/tratamento farmacológico , Fissura Anal/epidemiologia , Fissura Anal/fisiopatologia , Fissura Anal/cirurgia , Humanos , Nitroglicerina/uso terapêutico , Manejo da Dor , Qualidade de Vida , Resultado do Tratamento , Vasodilatadores/uso terapêutico
4.
Ann R Coll Surg Engl ; 100(7): e178-e180, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29909684

RESUMO

Hydatid cyst of the pancreas is a rarely seen entity even in endemic countries. Cyst may causes several symptoms due to external compression or fistulisation to pancreaticobiliary tract or small bowel. A 23-year-old female patient was referred with a complaint of abdominal pain. Preoperative imaging revealed an undefined cyst in the tail of pancreas. She underwent distal pancreatectomy and splenectomy, with a diagnosis of acute pancreatitis due to cystopancreatic duct fistula and also left-sided portal hypertension due to splenic vein thrombosis. Pathological examination reported a final diagnosis of hydatid cyst. To the best of our knowledge, coincidence of cystopancreatic duct fistula and splenic vein thrombosis due to pancreatic hydatid cyst has not previously been reported.


Assuntos
Equinococose/complicações , Pancreatite/etiologia , Veia Esplênica/patologia , Trombose Venosa/etiologia , Adulto , Albendazol/uso terapêutico , Anti-Helmínticos/uso terapêutico , Equinococose/diagnóstico , Equinococose/tratamento farmacológico , Feminino , Fístula/etiologia , Humanos , Hipertensão Portal/etiologia , Imageamento por Ressonância Magnética , Pâncreas/parasitologia , Pâncreas/patologia , Pancreatectomia/métodos , Esplenectomia/métodos , Tomografia Computadorizada por Raios X
7.
Acta Parasitol ; 61(2): 228-31, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27078645

RESUMO

The present study describes the first isolation and characterization of Vairimorpha plodiae, a microsporidian pathogen of Plodia interpunctella (Lepidoptera: Pyralidae), from Turkey. We present characteristic light and electron microscopical features of the spores. Fresh binucleate spores are oval and measure 4.48 ± 0.23 (4.01-4.84) µm in length and 2.21 ± 0.15 (1.91-2.48) µm in width. Ultrastructural studies showed that the spore wall measures 150 to 200 nm and consists of a clear endospore (125-150 nm) and an electron-dense, uniform, thin exospore (30-50 nm). The polar filament is isofilar and with 10-12 coils. The well-developed polaroplast consists of two parts with thin lamellae anteriorly and thick, irregularly arranged lamellae posteriorly. The identity of our isolate is discussed.


Assuntos
Lepidópteros/microbiologia , Microsporídios/isolamento & purificação , Microsporídios/ultraestrutura , Esporos Fúngicos/ultraestrutura , Animais , Microscopia , Turquia
8.
Eur J Gynaecol Oncol ; 31(6): 667-71, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21319513

RESUMO

PURPOSE OF INVESTIGATION: To determine risk factors for prognosis and recurrence in ovarian adult-type granulosa cell tumor (GCT). METHODS: A retrospective review of GCT cases treated at our university hospital between 1991-2006. RESULTS: Of 39 patients with GCT, 82% had Stage I disease. The median follow-up period was 71 months. There were 12 cases of recurrence (30.8%) and seven of them had died of disease. The pelvis and liver were the most common sites of recurrence (8 and 3 patients, respectively). Interestingly lymph node recurrence was encountered in two patients. Estimated disease-free survival for five years was 82%. Stage and presence of residual tumor were calculated to be the only associated risk factors for recurrence and prognosis (p < 0.05). CONCLUSION: Recurrences in GCT might be associated with stage and presence of residual tumor during primary surgery. Although rarely present during diagnosis, lymph node metastasis might be more common in recurrent disease.


Assuntos
Tumor de Células da Granulosa/epidemiologia , Tumor de Células da Granulosa/patologia , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/patologia , Saúde da Mulher , Adulto , Fatores Etários , Progressão da Doença , Feminino , Seguimentos , Tumor de Células da Granulosa/mortalidade , Humanos , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/secundário , Pessoa de Meia-Idade , Metástase Neoplásica , Neoplasias Ovarianas/mortalidade , Neoplasias Pélvicas/epidemiologia , Neoplasias Pélvicas/secundário , Prognóstico , Recidiva , Estudos Retrospectivos , Fatores de Risco , Turquia , Adulto Jovem
9.
Clin Exp Obstet Gynecol ; 35(1): 73-5, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18390088

RESUMO

PURPOSE OF INVESTIGATION: Pregnancy implanted in a cesarean scar is rare, and is a life-threatening condition due to high risk of uterine rupture, hemorrhage, hysterectomy, and maternal mortality. CASE REPORT: We describe a 26-year-old woman who presented with five weeks of amenorrhea and a serum hCG level of 10,440 mIU/ml. Transvaginal sonography revealed a gestational sac of 15 x 11 mm containing a yolk sac located in a previous cesarean scar. She was successfully treated conservatively with multi-dose methotrexate. No side-effects were encountered. The serum hCG levels were undetectable in 58 days. The patient had normal menstrual cycles afterwards. CONCLUSIONS: In the view of increasing cesarean rates, healthcare professionals should be aware of the possibility of a scar pregnancy and the potentially life threatening sequelae. Early diagnosis by transvaginal sonography can improve outcome and minimize the need for emergent surgery. Conservative treatment with systemic methotrexate is an effective option in selected patients.


Assuntos
Abortivos não Esteroides/administração & dosagem , Cesárea , Endométrio/patologia , Metotrexato/administração & dosagem , Gravidez Abdominal/diagnóstico por imagem , Gravidez Abdominal/tratamento farmacológico , Adulto , Endométrio/diagnóstico por imagem , Feminino , Humanos , Injeções Intramusculares , Gravidez , Ultrassonografia
10.
Fetal Diagn Ther ; 22(3): 198-202, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17228159

RESUMO

Leroy I-cell disease is a rare autosomal recessive lysosomal storage disorder characterized by marked psychomotor and growth retardation, skeletal anomalies, and typical facial features. There is a biochemical defect in uridine diphospho-N-acetylglucosamine-1-phosphotransferase, which is the enzyme responsible for addition of a mannose phosphate residue for lysosomal trafficking. Prenatal diagnosis is possible by analysis of enzyme activity in chorionic villi or cultured amniocytes, but this is offered to families only known to be at increased risk. We describe two cases that had bilateral shortness of the femurs at 25 and 31 weeks of gestation in the ultrasound scan and were diagnosed as Leroy I-cell disease by plasma enzyme analysis in the postnatal period. There was also bowing of the femurs in one case. None of the two families had a history of Leroy I-cell disease. The parents of one case were second-degree cousins. In view of these two cases that are presented, we propose that Leroy I-cell disease should be included in the differential diagnosis of short femurs even when there is no evident family history.


Assuntos
Fêmur/anormalidades , Mucolipidoses/diagnóstico , Adulto , Consanguinidade , Diagnóstico Diferencial , Feminino , Fêmur/diagnóstico por imagem , Genes Recessivos , Idade Gestacional , Hexosaminidases/sangue , Humanos , Recém-Nascido , Masculino , Mucolipidoses/diagnóstico por imagem , Mucolipidoses/enzimologia , Mucolipidoses/genética , Gravidez , Ultrassonografia Pré-Natal , alfa-Manosidase/sangue , beta-N-Acetil-Hexosaminidases/sangue
11.
Clin Hemorheol Microcirc ; 35(1-2): 45-50, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16899905

RESUMO

It is well known that the hematocrit in microvessels with diameters smaller than 1000 microm is lower than either venous or arterial hematocrit, thereby resulting in significantly lower mean hematocrit values for vessels perfusing a given tissue (i.e., lower tissue hematocrit). The mechanisms that underlie this reduction of microvascular hematocrit include axial migration, plasma skimming and the Fahraeus Effect. It has been previously demonstrated in rats that a linear hematocrit gradient normally exists through the thickness of the left ventricular myocardium, and that this gradient is sensitive to alterations of the rheological properties of the circulating blood. The gradient is abolished if the RBC in the perfusate are rigid; fibrinogen infusions, and thus increases of both plasma viscosity and RBC aggregation, also affect this gradient. In a new series of studies, it has been observed that enhanced RBC aggregation affects the myocardial hematocrit gradient regardless of alterations of plasma viscosity. Although the exact mechanisms responsible for the myocardial hematocrit gradient, as well as its physiological significance, are not yet clearly known, it is possible to speculate that alterations in local hematocrit could adversely affect myocardial perfusion and function.


Assuntos
Capilares/fisiologia , Hematócrito , Microcirculação/fisiologia , Miocárdio , Animais , Agregação Eritrocítica/fisiologia , Deformação Eritrocítica/fisiologia , Doenças Hematológicas/fisiopatologia , Hemodinâmica , Humanos , Ratos
12.
BJU Int ; 90(7): 703-6, 2002 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-12410752

RESUMO

OBJECTIVE: To investigate the value of penile scintigraphy using 99mTc-human immunoglobulin G (IgG) to differentiate the unstable (acute) and stable (chronic) phases of Peyronie's disease (PD). PATIENTS AND METHODS: Thirty-two consecutive patients (25 with PD and seven without) were evaluated using a detailed sexual history, serum chemistry panel, colour Doppler ultrasonography during simultaneous intracavernosal injection of 50 mg papaverine and stimulation, and 99mTc-IgG scanning. When indicated, nocturnal penile tumescence monitoring, dynamic infusion cavernosometry, cavernosonography and cavernosal artery systolic occlusion pressure were measured. After administering 370 MBq of 99mTc-IgG, images were taken at 30 min, 1, 2, 3 and 4 h. The scans were considered positive if there was any focal accumulation of radiopharmaceutical consistent with PD plaque formation. RESULTS: Eleven of the 25 patients with PD (mean age 56 years, sd 8) were in the unstable phase, the remaining 14 being in the stable phase. There was a localized increase in 99mTc-IgG activity in 10 patients who had unstable PD. There was complete resolution of increased activity in two patients at 12 and 13 months of follow-up. Of the 14 patients in the stable phase, 12 (at > 1 year) showed neither increased nor decreased 99mTc-IgG activity. In the remaining two patients there was increased activity on the plaque side. There was no local increase in activity in the control group. CONCLUSION: Inflammatory reactions can develop at various intervals during the unstable phase of PD. Medical methods should be used during the unstable phase and surgery delayed until the stable phase of the disease begins. An objective method of differentiating between the phases is therefore important. Penile 99mTc-IgG imaging is a new diagnostic approach for confirming the unstable phase of PD.


Assuntos
Imunoglobulina G , Compostos de Organotecnécio , Induração Peniana/diagnóstico por imagem , Compostos Radiofarmacêuticos , Doença Aguda , Doença Crônica , Humanos , Masculino , Pessoa de Meia-Idade , Cintilografia
13.
Nucl Med Commun ; 23(2): 147-51, 2002 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11891468

RESUMO

The estimation of differential renal function from dynamic renography affects clinical decisions. The estimation requires the kidneys to be delineated with regions of interest. However, in the presence of unilateral hydronephrosis it is not unusual for the affected kidney to be enlarged so that the regions of interest required to delineate the normal and abnormal kidneys are themselves dissimilar in size. The question, which then arises is, will this difference in the sizes of the regions of interest affect the resultant estimation of differential renal function? Eighteen children aged 1 month to 7 years, with prenatal ultrasound diagnosis of unilateral hydronephrosis where the affected kidney was larger than the normal kidney, underwent a total of 57 diuretic renograms using 99mTc-mercaptoacetyltriglycine. The renographic data were retrieved from optical disc and re-analysed. Regions of interest were generated which enclosed each kidney plus a region of interest of equal size to the abnormal large kidney was placed over the normal kidney. The consensus report from the Scientific Committee of Radionuclides in Nephrology described the Rutland-Patlak plot and integral methods for the estimation of differential renal function from dynamic renography. These two methods were used to analyse renal curves with and without background subtraction. Evaluation of the results suggest that technical factors, including the size of the region of interest, may affect differential renal function, and may, in part, explain the reports of the super-normal kidney in the literature.


Assuntos
Hidronefrose/congênito , Hidronefrose/diagnóstico por imagem , Rim/diagnóstico por imagem , Rim/fisiopatologia , Modelos Biológicos , Tecnécio Tc 99m Mertiatida , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Testes de Função Renal/métodos , Masculino , Cintilografia , Ultrassonografia Pré-Natal
14.
Clin Nucl Med ; 26(10): 820-2, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11564916

RESUMO

A 30-year-old woman underwent two operations for multinodular goiter and follicular thyroid carcinoma. The residual thyroid tissue was ablated by I-131 therapy. After 7 years of follow-up, Tc-99m MIBI and I-131 scintigraphy were performed, because her serum thyroglobulin level was much higher compared with the control analysis performed in the sixth year. Tc-99m MIBI showed pathologic accumulation, which could be consistent with a local recurrence, whereas the results of I-131 scintigraphy were negative. The locally recurring follicular thyroid carcinoma was resected using a gamma probe and Tc-99m MIBI. The thyroglobulin level decreased to a normal level after surgery. This case shows that the intraoperative use of a gamma probe with Tc-99m MIBI allows localization of recurrent thyroid tissue in the scarred area in patients with increased radionuclide accumulation, and scanning of the affected area using the gamma probe may be helpful in determining whether resection is complete.


Assuntos
Adenocarcinoma Folicular/diagnóstico por imagem , Compostos Radiofarmacêuticos , Tecnécio Tc 99m Sestamibi , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Adenocarcinoma Folicular/cirurgia , Adulto , Diagnóstico Diferencial , Feminino , Humanos , Radioisótopos do Iodo/uso terapêutico , Recidiva Local de Neoplasia , Cintilografia , Neoplasias da Glândula Tireoide/cirurgia , Contagem Corporal Total
15.
Rev Esp Med Nucl ; 20(4): 276-81, 2001 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-11440709

RESUMO

This study has aimed to determine the diagnostic value of the scintimammography with 99mTc-MIBI in the detection of primary breast cancer and to verify its clinical usefulness. Sixty-three female patients (age range 27-83) with breast lesions detected by physical examination, ultrasonography, and/or mammography were prospectively included in this study. An anterior and prone lateral planar 99mTc-MIBI scintimammography was performed on all patients. The final diagnosis was achieved by histopathological examination in 49 patients and clinical followup (at least one year) in 14 patients. Histopathological diagnosis confirmed that 15 lesions were malignant and 34 lesions were benign. All the malignant lesions were larger than 1 cm. The 99mTc-MIBI scintimammography showed increased focal uptake in 17 lesions (two of them were benign and the other 15 were malignant). The diffuse heterogeneous uptake pattern was considered as benign. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy values for breast carcinoma were calculated as 100%, 96%, 88%, 100%, 97%, respectively. We concluded that 99mTc-MIBI scintimammography could be a valuable method in the differentiation of malignant breast neoplasm larger than 1 cm size from benign ones, especially when the uptake pattern was considered.


Assuntos
Doenças Mamárias/diagnóstico por imagem , Mama/diagnóstico por imagem , Compostos Radiofarmacêuticos , Tecnécio Tc 99m Sestamibi , Adulto , Idoso , Idoso de 80 Anos ou mais , Mama/patologia , Doenças Mamárias/patologia , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/diagnóstico por imagem , Carcinoma Ductal de Mama/patologia , Carcinoma Intraductal não Infiltrante/diagnóstico por imagem , Carcinoma Intraductal não Infiltrante/patologia , Diagnóstico Diferencial , Reações Falso-Positivas , Feminino , Doença da Mama Fibrocística/diagnóstico por imagem , Doença da Mama Fibrocística/patologia , Humanos , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Metástase Linfática/diagnóstico por imagem , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Cintilografia , Compostos Radiofarmacêuticos/farmacocinética , Sensibilidade e Especificidade , Tecnécio Tc 99m Sestamibi/farmacocinética
16.
Nucl Med Commun ; 22(7): 785-94, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11453052

RESUMO

The role of imaging studies in the evaluation of patients with sacroiliitis is controversial. We aimed to evaluate the role of nanocolloid and bone scintigraphy in patients with sacroiliitis and to investigate the clinical relevance of imaging findings. Thirty-two patients with clinically sacroiliac disease (nine females, 23 males, aged 22-47 years) underwent scintigraphic and radiographic examinations and all imaging studies were performed within 2 weeks. Twenty-five subjects were also included as a control group (10 females, 15 males, aged 20-51 years) for quantitative analysis of the bone scan. The quantitative analysis was done by using regions of interest drawn over the right and left sacroiliac (SI) joint and sacrum (S) and SI/S ratios were calculated. Abnormal uptake was defined as an uptake higher than the mean +/- 2 SD of the control SI/S values. Bone scintigraphy was performed using a three-phase technique and single photon emission computed tomography (SPECT). Nanocolloid scintigraphy (NS) was performed 1 h later, after administration of 370 MBq 99mTc-nanocolloid, and evaluated visually. Each of the scintigraphic examinations was performed on separate days within the same week. Sensitivity values were 25%, 47%, 69% and 97%, and specificity values were 80%, 90%, 95% and 90% in quantitative bone scanning (QBS), 99mTc-NS, planar and SPECT bone imaging, respectively, when the clinical findings were considered as the 'gold standard'. Our results showed that bone SPECT scanning was more sensitive than planar imaging, but planar imaging was the most specific method. SPECT was also the most associated technique with clinical findings. 99mTc-NS was neither specific nor sensitive enough in the detection of sacroiliitis although it could be helpful for the confirmation of inflammation.


Assuntos
Artrite/diagnóstico por imagem , Compostos Radiofarmacêuticos , Articulação Sacroilíaca/diagnóstico por imagem , Agregado de Albumina Marcado com Tecnécio Tc 99m , Medronato de Tecnécio Tc 99m , Adulto , Osso e Ossos/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valores de Referência , Tomografia Computadorizada de Emissão de Fóton Único
17.
Cancer Biother Radiopharm ; 16(2): 163-9, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11385963

RESUMO

The aim of this study was to determine the role of technetium-99m methoxyisobutyl isonitrile (99mTc-MIBI) scintigraphy in the evaluation of recurrence and metastases in breast cancer patients with mastectomy and/or radiotherapy. A prospective study was designed to assess the accuracy of 99mTc-MIBI scintigraphy in 36 patients (mean age 49 years) with suspected recurrent breast cancer. The scintigraphic studies were correlated with radiological findings and/or with histopathology. At 10-15 min after 740MBq 99mTc-MIBI injection, standard planar images were obtained in prone lateral and anterior supine views and then single-photon emission computed tomography (SPECT) imaging was performed. A whole body imaging was also performed to demonstrate distant metastatic lesions. Totally 52 lesions were evaluated which 19 of them in 9 patients were malignant, while 33 lesions in 27 patients were benign. The sensitivity was 33%, 88% and the specificity was 96%, 93% for planar and SPECT imaging, respectively in loco-regional lesions. Overall, the sensitivity and the specificity of MIBI imaging including whole body were 89%, 81%, in other conventional radiological imaging methods were 95%, 65%, respectively. 99mTc-MIBI scintigraphy using SPECT imaging may provide useful complementary information in patients with suspected recurrence breast cancer.


Assuntos
Neoplasias da Mama/diagnóstico por imagem , Recidiva Local de Neoplasia/diagnóstico por imagem , Compostos Radiofarmacêuticos , Tecnécio Tc 99m Sestamibi , Adulto , Idoso , Diagnóstico Diferencial , Reações Falso-Negativas , Feminino , Humanos , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Sensibilidade e Especificidade , Tomografia Computadorizada de Emissão de Fóton Único
18.
Eur J Nucl Med ; 28(5): 575-80, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11383861

RESUMO

Various imaging studies can be performed in the evaluation of patients with a clinical presentation equivocal for acute appendicitis. One of these studies is technetium-99m hexamethylpropylene amine oxime (HMPAO) labelled white blood cell (WBC) scintigraphy. The aim of this study was to evaluate the accuracy and clinical value of 99mTc-HMPAO WBC scintigraphy in the aforementioned group of patients. Forty-one patients who had acute right lower quadrant abdominal pain with a clinical presentation equivocal for acute appendicitis were included in the study. The anterior abdomen and pelvis were imaged up to 4 h after the injection of 125-300 MBq 99mTc-HMPAO WBCs and the results were immediately reported to the surgeon before a decision was taken on whether to perform laparotomy. Diagnostic accuracy was established by the intra-operative findings and the histopathology in operated patients. In non-operated patients, absence of abdominal symptoms 1 month after scintigraphy and/or identification of another cause of abdominal pain was used to rule out acute appendicitis. There were 16 patients with positive scintigraphy and 81% of these patients were positive within 2 h post injection. There were no false-positive or false-negative results. We operated on 17 (41.4%) patients, and only one patient (5.9%) underwent unnecessary laparotomy. We conclude that 99mTc-HMPAO WBC scintigraphy is a rapid, highly accurate method for the exclusion of acute appendicitis and that its use can lower the unnecessarily high laparotomy rate in patients with an equivocal clinical presentation.


Assuntos
Apendicite/diagnóstico por imagem , Leucócitos , Compostos Radiofarmacêuticos , Tecnécio Tc 99m Exametazima , Doença Aguda , Adolescente , Adulto , Criança , Feminino , Humanos , Masculino , Estudos Prospectivos , Cintilografia
19.
Clin Nucl Med ; 26(7): 622-5, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11416745

RESUMO

PURPOSE: The aim of this study was to investigate quantitatively the volume effect of the stomach on the prevention of intestinal artifacts in the rest phase on same-day exercise--rest Tc-99m tetrofosmin myocardial perfusion scintigraphy. MATERIALS AND METHODS: The study was performed in 81 consecutive patients (43 men, 38 women; mean age, 57 +/- 9 years) who were referred for routine Tc-99m tetrofosmin exercise--rest SPECT myocardial perfusion imaging with normal scintigrams or completely normal inferior wall perfusion on visual assessment of SPECT images. Group A (control group, n = 41) and group B (n = 40) were given 200 ml milk to enhance the hepatobiliary clearance of tetrofosmin 30 minutes before the exercise SPECT acquisition study and just after the injection for the rest SPECT acquisition study. For the rest SPECT acquisition study, patients in group B were given, in addition to milk, a standard solid and fluid meal to enhance the volume of the stomach after the injection of Tc-99m tetrofosmin. In all patients, both exercise and rest SPECT acquisitions were started 45 minutes after the injection of Tc-99m tetrofosmin. Myocardial and abdominal activity were assessed on three separate views in the rest phase of the study, and the mean myocardium-to-abdomen count ratios were calculated. In addition, the presence of interfering intestinal activity was assessed visually on SPECT images. Infracardiac activity was described as absent when it was equal to lung background. RESULTS: The myocardial-to-abdominal ratios were 1.38 +/- 0.05 and 1.95 +/- 0.04 in groups A and B, respectively (P < 0.0001). Interfering intestinal activity with varying degrees of intensity was seen in 20 patients in group A (49%) and in 5 patients in group B (13%; P < 0.001). CONCLUSIONS: These results suggest that filling of the stomach with some fluid and solid food before rest acquisition on the same-day stress--rest protocol, because of its volume effect, may provide a high target-to-nontarget ratio for myocardial imaging and thus may reduce the frequency of intestinal artifacts.


Assuntos
Circulação Coronária , Teste de Esforço , Intestinos/diagnóstico por imagem , Compostos Organofosforados , Compostos de Organotecnécio , Compostos Radiofarmacêuticos , Estômago/diagnóstico por imagem , Tomografia Computadorizada de Emissão de Fóton Único , Artefatos , Ingestão de Líquidos , Ingestão de Alimentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Descanso
20.
Rev. esp. med. nucl. (Ed. impr.) ; 20(4): 276-281, jun. 2001.
Artigo em Es | IBECS | ID: ibc-788

RESUMO

El objetivo del estudio, fue determinar el valor de diagnóstico de la mamografía con 99mTc MIBI en la detección de cáncer del mama primario y verificar su utilidad clínica. Sesenta y tres pacientes (edad rango 27-83) con lesiones del mama descubiertas por el examen físico, la ecografía, y/o mamografía fueron incluidas en este estudio prospectivo. En todas las pacientes se realizaron proyección anterior y latera. El diagnóstico fibal se estableció por el examen del histopathológico en 49 pacientes y seguimineto clínico (por lo menos un año) en 14 pacientes. La histopatología confirmó que 15 lesiones eran malignas y 34 lesiones eran benignas. Todas las lesiones malignas eran mayores de 1 cm. La mamografía con 99mTc-MIBI mostró captación focal aumentada en 17 lesiones (dos de ellas eran benignas y las otras 15 eran malignas). La captación heterogénea difusa fue considerada como benigna. La sensibilidad, la especificidad, el valor predictivo positivo, el valor predictivo negativo y la exactitud para el carcinoma del mama fueron respectivamente 100 por ciento, 96 por ciento, 88 por ciento, 100 por ciento, 97 por ciento. Concluimos que la mamografía con 99mTc-MIBI puede ser un valioso método en la diferenciación de neoplasias de mama malignas mayores de 1 cm, de las benignas especialmente si se considera el modelo de captación. (AU)


Assuntos
Pessoa de Meia-Idade , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Sensibilidade e Especificidade , Tecnécio Tc 99m Sestamibi , Compostos Radiofarmacêuticos , Carcinoma Ductal de Mama , Estudos Prospectivos , Doenças Mamárias , Mama , Carcinoma Intraductal não Infiltrante , Diagnóstico Diferencial , Metástase Linfática , Linfonodos , Reações Falso-Positivas , Doença da Mama Fibrocística , Doença da Mama Fibrocística , Valor Preditivo dos Testes , Neoplasias da Mama
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