Tumor-Infiltrating Lymphocytes in Localized Prostate Cancer: Do They Play an Important Role?

Background Localized prostate cancer is a heterogeneous entity, and new biomarkers are required for risk stratification. This study aimed to characterize tumor-infiltrating lymphocytes (TILs) in localized prostate cancer and assess their potential prognostic markers. Methodology Radical prostatectomy specimens were analyzed to determine infiltration levels of CD4+, CD8+, T cells, and B cells (characterized by CD20+ cells) in the tumor tissue using immunohistochemistry and the recommendations of the International TILs Working Group 2014. The clinical endpoint was biochemical recurrence (BCR), and the study sample was divided into two cohorts (cohort 1: without BCR; cohort 2: with BCR). Prognostic markers were assessed using Kaplan-Meier and univariate/multivariate Cox regression analysis using SPSS version 25 (IBM Corp., Armonk, NY, USA). Results We included 96 patients in this study. BCR occurred in 51% of the patients. Normal TILs infiltration was found in most of the patients (41/31, 87%/63%). T CD4+ infiltration was statistically superior in cohort 2. This enrichment was associated with BCR (p < 0.05; log-rank test). After adjustment for routine clinical variables and Gleason grade groups (grade group ≤2 and grade group ≥3), it remained an independent prognostic variable of early BCR (p < 0.05; multivariate Cox regression). Conclusions This study showed that immune cell infiltration appears to be an important prognostic variable for early recurrence in localized prostate cancer.

Neoadjuvant chemotherapy for muscle-invasive bladder cancer: does variant histology matter?

PURPOSE: The most frequent histology of bladder tumors is urothelial carcinoma. Most are pure urothelial carcinomas (PUC) but up to one-third of the cases present variant histological (VH) features. The aim of this study was to evaluate the role of variant histology in neoadjuvant chemotherapy (NAC) response in patients with urothelial muscle-invasive bladder cancer. METHODS: We retrospectively analyzed data from 77 patients with bladder cancer who performed neoadjuvant chemotherapy at two institutions. RESULTS: Complete pathological response (ypT0) was higher in patients with PUC (38.5%), comparing with VH (12%). Logistic regression analysis demonstrated that variant histology is associated with an 89% lesser likelihood of tumor downstaging, with advanced clinical T stages and positive smoking history as independent predictors. The estimated mean cancer-specific survival was 68.91 months for PUC patients and 50.23 months for VH patients (log rank test, P = 0.024). Multivariate Cox regression analysis demonstrated that VH and clinical T stage were independent predictors of cancer-specific survival, indicating a worse outcome for patients with VH and advanced clinical T stages. CONCLUSIONS: There are only a few retrospective studies evaluating the clinical impact of variant histology tumors, which are mainly managed as PUC. Our results demonstrate that VH is associated with a worse likelihood of tumor downstaging after NAC and a worse cancer-specific survival in bladder cancer patients. There is a need for further studies and genetic analysis to identify the patients most likely to achieve ypT0 status and downstaging after NAC.

Alkaloids from the stem barks of Scutia buxifolia Reissek (Rhamnaceae): Structures and antimicrobial evaluation.

A reinvestigation of the chemical constituents of the stem barks of Scutia buxifolia, a member of the Rhamnaceae, resulted, along with the known alkaloids scutianine C and scutianene L, in the isolation of three undescribed diastereoisomeric alkaloids - scutianine N, 27-epi-scutianine N and 3, 4, 7-tri-epi-scutianine N -, one undescribed non macrocyclic alkaloid - scutianine Q - and a neutral compound -scutianene M. Their structures were determined using extensive NMR techniques and HRMS. The absolute configurations of the stereogenic centers of the three diastereoisomeric alkaloids have been assigned by gas chromatography employing modified cyclodextrins as chiral stationary phases. Scutianine Q had its structure and stereochemistry defined by single crystal X-ray crystallographic analysis. All tested compounds showed good to moderate antibacterial activity (MICs between 1.56 and 100 µg mL-1) when evaluated in vitro against a panel of Gram-positive and Gram-negative bacteria. Some stereochemistry-activity relationships have been identified for the antibacterial activity of diastereoisomeric alkaloids against the Gram-negative bacteria Enterobacter aerogenes. The alkaloid 27-epi-scutianine N was as active as the standard antibiotic chloramphenicol (MIC = 1.56 µg mL-1), while scutianine N and 3,4,27-tris-epi-Scutianine N were inactive (>100 µg mL-1).

In vitro antiproliferative activity of alkaloids isolated from Tabernaemontana catharinensis A.DC (Apocynaceae).

In this work, four alkaloids from the stem bark of T. catharinensis were isolated, namely: voacangine (1); ethyl apovincaminate (2); affinisine (3) and voachalotine (4). The alkaloids were tested in vitro for antiproliferative capacity in eight tumor cell lines: U251 (glioma), MCF-7 (breast), NCI-ADR/RES (drug resistant ovary), 786-0 (kidney), NCI-H460 (lung), HT-29 (colon), K562 (leukemia) and PC-3 (prostate) and a non-tumor keratinocyte cell line (HaCat). Antiproliferative activity was observed after 48 hours and results expressed as the concentration needed to induce 50% growth inhibition (GI50) in µM. The chemotherapy drug Doxorubicin was used as a standard. The alkaloid affinisine (3) was the most promising, showing moderate inhibition rates in addition to the cytotoxic and cytocidal effect against all strains tested. It also proved to be a very promising compound, showing high selectivity rates when compared to the non-tumor keratinocyte cell line (HaCat).

Cushing Syndrome as a Manifestation of Neuroendocrine Prostate Cancer: A Rare Presentation Within a Rare Tumor.

Neuroendocrine prostate cancer (NEPC) is a rare entity representing 1% of all prostate malignancies, associated with poor prognosis and often concomitant with paraneoplastic syndromes such as Cushing's syndrome (CS) with ectopic adrenocorticotropic hormone (ACTH) production. We present a case of a 56-year-old man with recent lower urinary tract symptoms hospitalized for pelvic pain, rectal tenesmus, and fatigue. A CT scan documented a large prostatic mass, adenomegalies, and hepatic lesions. Bone scintigraphy showed dispersed osteoblastic metastization. The patient had uncontrolled hypertension and hypokalemia that lead to the diagnosis of paraneoplastic ACTH-dependent CS. Prostate biopsy confirmed small cell NEPC. Potassium supplementation, anti-hypertensive medication, and metyrapone were initiated. The patient was proposed for palliative chemotherapy but died within a few days from a urinary tract infection. The authors aim to draw attention to a case of paraneoplastic CS, a rare manifestation, within the rarity that is NEPC.

Undergraduate teaching of urology: Quo vadis?

BACKGROUND: The undergraduate teaching of urology is not uniform in the various European medical schools and even absent in some of them, despite the widespread adoption of the Bologna process, which advocates a standardization and harmonization of medical education. Our aim was to evaluate the perception of junior doctors about the undergraduate teaching of Urology and the exposure to the specialty of Urology in undergraduate education in Portuguese medical schools. METHODS: A questionnaire was emailed to all physicians who first enrolled in the Board of Portuguese Doctors in 2017 and 2018. The questionnaire consisted of several questions about specialty exposure, pathology, and basic urological procedures. A database for statistical analysis was created. RESULTS: One hundred and eighty-six answers were considered valid. Although almost all participant physicians attribute considerable importance to Urology specialty, most find their exposure to urological pathology and basic urological procedures to be inappropriate in medical school. Urinary lithiasis and lower urinary tract symptoms are the subjects on which doctors feel most prepared after graduating. Interestingly, 63.4% of doctors consider that the education they had in college was preponderant in choosing their specialty. CONCLUSIONS: The teaching of Urology in Portuguese Medical Schools is considered by junior doctors as inadequate, not reflecting the importance of this specialty in the clinical practice. These results are like those found in other countries. A reflection and consequent change of the teaching paradigm is necessary, namely at the practical teaching level.

Local treatment of toxoplasmic retinochoroiditis with intravitreal clindamycin and dexamethasone.

PURPOSE: To report the clinical outcomes of local treatment of toxoplasmic retinochoroiditis (TRC) with intravitreal injections of clindamycin and dexamethasone. STUDY POPULATION: 16 eyes (16 patients) with active TRC sparing the macula and juxtapapillary area treated with intravitreal injections of clindamycin (1 mg) and dexamethasone (1 mg) without concomitant systemic antitoxoplasmic or anti-inflammatory therapy. Measured parameters: Best-corrected visual acuity (BCVA) was measured by an Early Treatment Diabetic Retinopathy Study (ETDRS) chart. BCVA and clinical characteristics of retinochoroiditis were assessed at baseline and at 1, 3, 6, and 12 months. PRIMARY OUTCOME MEASURES: Resolution of retinochoroiditis and changes in BCVA. RESULTS: Control of TRC was achieved in all cases with a mean interval of 2.48 ± 1.03 weeks (2-6 weeks). A single injection of intravitreal clindamycin and dexamethasone was performed in 12 patients, and four patients required two intravitreal injections, during the follow-up period. Fourteen eyes (87.5%) improved ≥ 2 ETDRS lines of BCVA, of two or more Early Treatment Diabetic Retinopathy Study lines, BCVA remained stable in two eyes (12.5%), and no patient had decreased BCVA at the end of the follow-up period. No ocular or systemic adverse events were observed. CONCLUSION: Local treatment with intravitreal injections of clindamycin and dexamethasone without concomitant systemic therapy was associated with resolution of TRC in patients without macular or juxtapapillary involvement. Intravitreal clindamycin and dexamethasone may represent a viable treatment option in patients with allergies or inadequate responses to oral medications.

Local treatment of toxoplasmic retinochoroiditis with intravitreal clindamycin and dexamethasone / Tratamento local para a retinocoroidite toxoplásmica com clindamicina e dexametasona intravítrea

ABSTRACTPurpose:To report the clinical outcomes of local treatment of toxoplasmic retinochoroiditis (TRC) with intravitreal injections of clindamycin and dexamethasone.Methods:Study population: 16 eyes (16 patients) with active TRC sparing the macula and juxtapapillary area treated with intravitreal injections of clindamycin (1 mg) and dexamethasone (1 mg) without concomitant systemic antitoxoplasmic or anti-inflammatory therapy. Measured parameters: Best-corrected visual acuity (BCVA) was measured by an Early Treatment Diabetic Retinopathy Study (ETDRS) chart. BCVA and clinical characteristics of retinochoroiditis were assessed at baseline and at 1, 3, 6, and 12 months. Primary outcome measures: Resolution of retinochoroiditis and changes in BCVA.Results:Control of TRC was achieved in all cases with a mean interval of 2.48 ± 1.03 weeks (2-6 weeks). A single injection of intravitreal clindamycin and dexamethasone was performed in 12 patients, and four patients required two intravitreal injections, during the follow-up period. Fourteen eyes (87.5%) improved ≥ 2 ETDRS lines of BCVA, of two or more Early Treatment Diabetic Retinopathy Study lines, BCVA remained stable in two eyes (12.5%), and no patient had decreased BCVA at the end of the follow-up period. No ocular or systemic adverse events were observed.Conclusion:Local treatment with intravitreal injections of clindamycin and dexamethasone without concomitant systemic therapy was associated with resolution of TRC in patients without macular or juxtapapillary involvement. Intravitreal clindamycin and dexamethasone may represent a viable treatment option in patients with allergies or inadequate responses to oral medications.

RESUMOObjetivo:Reportar os resultados clínicos do tratamento local da retinocoroidite toxoplásmica com injeções intravítreas de clindamicina e dexametasona.Métodos:População do estudo: 16 olhos (16 pacientes) com retinocoroidite toxoplásmica ativa sem comprometimento da mácula e da área juxtapapilar, tratados com injeções intravítreas de clindamicina (1 mg) e dexametasona (1 mg) sem terapia sistêmica anti-toxoplásmica ou anti-inflamatória concomitante. Procedimento de observação: A melhor acuidade visual corrigida (BCVA) foi medida através da tabela ETDRS. A BCVA e as características clínicas da retinocoroidite foram avaliadas na qualificação, primeiro, terceiro, sexto e 12º mês. Medidas do resultado principal: resolução da retinocoroidite e mudanças na BCVA.Resultados:O controle da retinocoroidite toxoplásmica foi atingido em todos os casos com um intervalo médio de 2,48 ± 1,03 semanas (intervalo de 2 a 6 semanas). Uma única injeção intravítrea de clindamicina e dexametasona foi aplicada em 12 pacientes, e quatro pacientes precisaram de duas injeções durante o seguimento. Quatorze olhos (87,5%) melhoraram ≥ 2 linhas ETDRS de BCVA, a BCVA ficou estável em 2 olhos (12,5%) e nenhum paciente apresentou diminuição da acuidade visual no final do seguimento. Não foram observados eventos adversos sistêmicos ou oculares.Conclusão:O tratamento local com injeções intravítreas de clindamicina e dexametasona sem terapia sistêmica concomitante esteve associado com a resolução da retinocoroidite toxoplásmica em pacientes sem comprometimento macular ou juxtapapilar. A clindamicina e dexametasona intravítrea representam um tratamento promissor em pacientes com intolerância, contraindicação ou resposta inadequada a medicação oral.

Synchronous bilateral seminoma.

OBJECTIVE: To present a case of synchronous bilateral seminoma and perform a bibliographic review about this rare presentation of testicular neoplasia, with important physical and psychological consequences. METHODS: 25-year old man with bilateral multifocal testicular neoplasias and azoospermia. We performed a bilateral inguinal radical orchiectomy, with the pathologic exam diagnosing bilateral seminoma. Adjuvant lumbar-aortic radiotherapy was initiated. More than a year after the surgery the patient is asymptomatic and without evidence of disease, although dependent of testosterone supplement. RESULTS: Germ cell testicular neoplasias are more frequent in young men between 15 and 35 years old. There is a 2-3% incidence of bilateral neoplasm, either synchronous or metachronous. Bilateral radical orchiectomy remains as standard of treatment, rendering the patient infertile and depending on exogenous androgens, which causes several psychological problems. However, a testis-sparing surgery could be performed in selected cases; our patient, having multiple bilateral neoplasias, was not eligible for this procedure. With a great incidence of carcinoma in situ on spared testicular parenchyma, scrotal radiotherapy is indicated. In spite of infertility, this treatment presents very good oncological results with androgen independence and consequent physical and psychological advantages. CONCLUSION: Bilateral orchiectomy still remains as "gold-standard" treatment for bilateral seminoma. However, there are other possibilities of treatment, such as partial orchiectomy, feasible in selected cases of small volume testicular tumours in solitary testis / bilateral tumour in men without preoperative androgen deficiency and who could be object of close clinical and imaging follow-up. This way you could avoid additional loss of quality of life, without any prejudice on oncological results.

Seminoma bilateral sincrónico. Revisión de la literatura a propósito de un caso / Synchronous bilateral seminoma

OBJETIVO: Presentar un caso de seminoma bilateral sincrónico y realizar una revisión bibliográfica sobre una presentación poco frecuente de neoplasia testicular.MÉTODOS: Presentamos el caso de un hombre de 25 años con neoplasia testicular bilateral multifocal y azoospermia. Realizamos una orquiectomía radical inguinal bilateral, cuyo examen anatomopatológico reveló seminoma bilateral, por lo que se efectuó radioterapia lumbo-aórtica adyuvante. Más de un año después de la cirugía, se encuentra asintomático y sin evidencia de enfermedad, pero dependiente de testosterona exógena.RESULTADOS: Las neoplasias testiculares germinativas presentan una incidencia mayor en hombres entre 15 a 35 años. En el 2-3 % de los casos, se verifica neoplasia bilateral. El tratamiento recomendado es la orquiectomía radical bilateral, que ocasiona infertilidad en el paciente y dependencia de testosterona exógena. En nuestro paciente, por tener múltiples tumores bilateralmente, no existía otra opción, pero en casos seleccionados se puede efectuar orquiectomía parcial. Si es muy elevada la incidencia de carcinoma in situ en el restante parénquima, está indicada la radioterapia escrotal. A pesar de la infertilidad secundaria al tratamiento, esta opción presenta muy buenos resultados oncológicos y de no dependencia de testosterona exógena.CONCLUSIÓN: El tratamiento recomendado del seminoma bilateral sigue siendo la orquiectomía bilateral, aunque existen otras posibilidades, como la orquiectomía parcial, posible en tumores testiculares únicos, de pequeño volumen en hombres con testosterona normal y con posibilidad de vigilancia clínica y radiológica frecuente. De esta manera, se puede disminuir el impacto sobre la calidad de vida, sin alterar el resultado oncológico final(AU)

OBJECTIVE: To present a case of synchronous bilateral seminoma and perform a bibliographic review about this rare presentation of testicular neoplasia, with important physical and psychological consequences.METHODS: 25-year old man with bilateral multifocal testicular neoplasias and azoospermia. We performed a bilateral inguinal radical orchiectomy, with the pathologic exam diagnosing bilateral seminoma. Adjuvant lumbar-aortic radiotherapy was initiated. More than a year after the surgery the patient is asymptomatic and without evidence of disease, although dependent of testosterone supplement.RESULTS: Germ cell testicular neoplasias are more frequent in young men between 15 and 35 years old. There is a 2-3% incidence of bilateral neoplasm, either synchronous or metachronous. Bilateral radical orchiectomy remains as standard of treatment, rendering the patient infertile and depending on exogenous androgens, which causes several psychological problems. However, a testis-sparing surgery could be performed in selected cases; our patient, having multiple bilateral neoplasias, was not eligible for this procedure. With a great incidence of carcinoma in situ on spared testicular parenchyma, scrotal radiotherapy is indicated. In spite of infertility, this treatment presents very good oncological results with androgen independence and consequent physical and psychological advantages.CONCLUSION: Bilateral orchiectomy still remains as “gold-standard” treatment for bilateral seminoma. However, there are other possibilities of treatment, such as partial orchiectomy, feasible in selected cases of small volume testicular tumours in solitary testis / bilateral tumour in men without preoperative androgen deficiency and who could be object of close clinical and imaging follow-up. This way you could avoid additional loss of quality of life, without any prejudice on oncological results(AU)

[Malignant fibrous histiocytoma of the eyelid: case report]. / Fibro-histiocitoma maligno da pálpebra: relato de caso.

Fibrous histiocytomas represent 1% of all orbital masses and may be classified into benign, locally aggressive and malignant - these representing nearly 11% of the total. In this study, the authors describe an unusual case of malignant fibrous histiocytoma of the eyelid, discussing clinical and histological features of this neoplasm.

Fibro-histiocitoma maligno da pálpebra: relato de caso / Malignant fibrous histiocytoma of the eyelid: case report

Os fibro-histiocitomas representam 1 por cento das massas orbitárias e podem ser histologicamente classificados em benignos, localmente agressivos e malignos - os últimos representando aproximadamente 11 por cento do total. Nesse estudo, os autores descrevem um caso raro de fibro-histiocitoma maligno de pálpebra, ressaltando as características clínicas e histopatológicas desta neoplasia.

Fibrous histiocytomas represent 1 percent of all orbital masses and may be classified into benign, locally aggressive and malignant - these representing nearly 11 percent of the total. In this study, the authors describe an unusual case of malignant fibrous histiocytoma of the eyelid, discussing clinical and histological features of this neoplasm.

Lipemia retinalis in a 35-day-old infant with hyperlipoproteinemia: case report.

A rare case of hyperlipropoteinemia in a 35-day-old infant who presented not only high blood levels of cholesterol and triglycerides but also an ocular manifestation described as lipemia retinalis. The fundoscopic abnormality cleared as the levels of chilomicrons in plasma dropped. Lipemia retinalis is an important and reliable parameter of high levels of chilomicrons and triglycerides and should be considered as a significant clue while diagnosing.

Lipemia retinalis in a 35-day-old infant with hyperlipoproteinemia: case report / Lipemia retinalis em recém-nascido com 35 dias: relato de caso

A rare case of hyperlipropoteinemia in a 35-day-old infant who presented not only high blood levels of cholesterol and triglycerides but also an ocular manifestation described as lipemia retinalis. The fundoscopic abnormality cleared as the levels of chilomicrons in plasma dropped. Lipemia retinalis is an important and reliable parameter of high levels of chilomicrons and triglycerides and should be considered as a significant clue while diagnosing.

Caso raro de hiperlipoproteinemia em recém-nascido com 35 dias de idade. Identificados altos níveis de colesterol e triglicérides associados a manifestãção ocular descrita como lipemia retinalis. As alterações oculares mostraram melhora uma vez que os níveis séricos foram controlados. Lipemia retinalis é parâmetro confiável e importante a ser considerado como suspeita de alterações de colesterol e triglicérides em crianças e em adultos.

Bladder sensory desensitization decreases urinary urgency.

BACKGROUND: Bladder desensitization has been investigated as an alternative treatment for refractory detrusor overactivity. Most open and controlled clinical trials conducted with intravesical RTX showed that desensitization delays the appearance of involuntary detrusor contractions during bladder filling and decreases the number of episodes of urgency incontinence. Urgency is being recognised as the fundamental symptom of overactive bladder (OAB), a symptomatic complex which recent epidemiological studies have shown to affect more than 10% of the Western population. As anti-muscarinic drugs, the first line treatment for OAB, are far from being able to fully control urgency, the opportunity to test other therapeutic approaches is created. The present work was, therefore, designed as an exploratory investigation to evaluate the effect of bladder desensitization on urinary urgency. METHODS: Twenty-three OAB patients with refractory urgency entered, after given informed consent, a 30 days run-in period in which medications influencing the bladder function were interrupted. At the end of this period patients filled a seven-day voiding chart where they scored, using a 0-4 scale, the bladder sensations felt before each voiding. Then, patients were instilled with 100 ml of 10% ethanol in saline (vehicle solution) and 30 days later a second seven-day voiding chart was collected. Finally, patients were instilled with 100 ml of 50 nM RTX in 10% ethanol in saline. At 1 and 3 months additional voiding charts were collected. At the end of the vehicle and 3 months period patients were asked to give their subjective impression about the outcome of the treatment and about the willingness to repeat the previous instillation. RESULTS: At the end of the run-in period the mean number of episodes of urgency per week was 71 +/- 12 (mean +/- SEM). After vehicle instillation, the mean number of episodes of urgency was 56 +/- 11, but only 4 patients (17%) considered that their urinary condition had improved enough to repeat the treatment. At 1 and 3 months after RTX the number of episodes of urgency decreased to 39 +/- 9 (p = 0.002) and 37 +/- 6 (p = 0.02), respectively (p indicates statistical differences against vehicle). The percentage of patients with subjective improvement after RTX and willing to repeat the instillation at a later occasion was 69%. CONCLUSION: In OAB patients with refractory urgency bladder desensitization should be further investigated as an alternative to the standard management. Additionally, the specific effect of RTX on TRPV1 receptors suggests that urothelium and sub-urothelial C-fibers play an important role to the generation of urgency sensation.

Transposição monocular vertical dos músculos retos horizontais em pacientes esotrópicos portadores de anisotropia em A / Monocular vertical displacement of the horizontal rectus muscles in esotropic patients A pattern

OBJETIVO: Estudar a eficácia da transposição vertical monocular dos mús-culos retos horizontais, proposta por Goldstein, em pacientes esotrópicos portadores de anisotropia em A, sem hiperfunção de músculos oblíquos. MÉTODOS: Foram analisados, retrospectivamente, 23 prontuários de pacientes esotrópicos portadores de anisotropia em A > 10delta, submetidos a transposição vertical monocular dos músculos retos horizontais. Os pacientes foram divididos em 2 grupos, de acordo com a magnitude da incomitância pré-operatória; grupo 1 era composto de pacientes com desvio entre 11delta e 20delta e grupo 2 entre 21delta e 30delta. Foram considerados co-mo resultados satisfatórios as correções com A < 10delta ou V < 15delta. RESULTADOS: A média de correção absoluta obtida foi, no grupo 1, de 16,5delta e no grupo 2, de 16,6delta. No grupo 1, 91,6 por cento dos pacientes apresentaram resultados cirúrgicos considerados satisfatórios e no grupo 2, 81,8 por cento (p=0,468). CONCLUSAO: O procedimento cirúrgico proposto por Goldstein é efetivo, não havendo diferença estatisticamente significante entre a magnitude da anisotropia pré-operatória e a correção obtida.

Prognóstico visual para facectomia: retinômetro de Heine e orifício estenopéico múltiplo / Visual prognosis for lens extraction: Heine retinometer and multiple pinhole

OBJETIVO: Avaliar a acurácia do retinômetro de Heine e do orifício estenopéico múltiplo no prognóstico da acuidade visual pós-facectomia. MÉTODOS: Foram examinados 65 olhos com o retinômetro de Heine e com o orifício estenopéico múltiplo. Após a facectomia os pacientes foram submetidos à refração e os resultados comparados com a previsão dos instrumentos. O grupo 1 é formado por pacientes com acuidade visual pior que 20/100 e o grupo 2 melhor ou igual a 20/100. RESULTADO: O retinômetro de Heine teve bons resultados em 21 por cento e 44 por cento, nos grupos 1 e 2 respectivamente. O orifício estenopéico múltiplo teve bons resultados em 26 por cento e 52 por cento, nos grupos 1 e 2 respectivamente. CONCLUSAO: O retinômetro de Heine tem acurácia semelhante ao orifício estenopéico múltiplo no prognóstico da acuidade visual pós-facectomia. Os instrumentos não devem ser usados para contra-indicar a facectomia devido ao grande número de resultados falso-negativos.

Corneal thickness in congenital glaucoma.

PURPOSE: To compare central corneal thickness between eyes with congenital glaucoma and normal controls and to correlate this parameter with corneal diameter and axial length. METHODS: Eyes of consecutive children with congenital glaucoma with previous glaucoma surgery and eyes of children with inadequacy of lacrimal drainage system with age less than 3 years old were examined under inhalatory general anesthesia. Complete ophthalmologic examination, central corneal thickness, axial length, and corneal diameter measurements were performed. All patients presented with intraocular pressure (IOP) less than 21 mm Hg and no clinical sign of corneal edema. RESULTS: Fifty-five eyes of 55 patients (30 congenital glaucoma and 25 controls) were examined (mean age = 16.6 +/- 10.6 months; 20 female/ 35 males). There was no significant difference in age and gender between glaucoma patients and normal subjects. Mean IOP was higher in glaucomatous eyes (P = 0.02). Corneal diameter and axial length between glaucomatous eyes and controls were significantly different (P < 0.0001 for both). Central corneal thickness was significantly thinner in glaucomatous eyes (P = 0.01). There was a significant correlation between corneal diameter and central corneal thickness and also between central corneal thickness and axial length (r2 = 0.32 and r2 = 0.18, respectively; P < 0.0001 for both). CONCLUSION: Central corneal thickness was significantly thinner in children with congenital glaucoma. This finding may be another confounding factor when measuring IOP in those patients. Pachymetry should be considered during their examination.

Prevalência da retinopatia diabética no Ambulatório de Endocrinologia Pediátrica da Santa Casa de Misericórdia de São Paulo / The prevalence of diabetic retinopathy at the Pediatric Endocrinology Outpatient Clinic of the Santa Casa de São Paulo

OBJETIVO: Verificar a prevalência de retinopatia diabética encontrada na população de diabéticos tipo 1, acompanhada no Ambulatório de Endocrinologia Pediátrica da Santa Casa de Misericórdia de São Paulo, entre 29 de agosto de 2000 e 17de agosto de 2001, e sua relação com o sexo, a idade do paciente na ocasião do diagnóstico do diabete e a duração do diabete. MÉTODO: Foi realizado mapeamento de retina, biomicroscopia de fundo e retinografia em 81 pacientes, 41 do sexo feminino e 40 do masculino, a fim de detectar e classificar a retinopatia diabética nessa população. RESULTADOS: A idade dos pacientes variou entre 4 e 23 anos (média = 12,0 ± 12,0), a idade do paciente na ocasião do diagnóstico, entre 6 meses e 15 anos (média = 3,4 ± 5,8) e a duração do diabete, entre 7 meses e 20 anos (média = 5,8 ± 4,4). A retinopatia diabética foi observada em 14 pacientes (17,3 por cento), 7 (8,6 por cento) com a forma não proliferativa muito leve, 5 (6,2 por cento) com forma não proliferativa leve, 1 (1,2 por cento) com forma proliferativa de alto risco e 1 (1,2 por cento) com forma proliferativa avançada. CONCLUSÕES: A prevalência da retinopatia diabética na nossa amostra é 17,3 por cento. Não há diferença entre os portadores e não portadores de retinopatia diabética quanto a sexo e idade do paciente na ocasião do diagnóstico. Quanto maior a duração da diabete, maior a prevalência da retinopatia diabética.

A formação do professor de matemática de ensino superior / The formation of the mathematics teacher in higher education

Neste artigo, pretendo discutir alguns aspectos historicamente relacionados à formação do professor de matemática de ensino superior que influenciam diretamente a formação de seus alunos, destacadamente, os futuros professores de matemática dos ensinos fundamental e médio. Cabe destacar que em minha Tese de Doutorado Reis, 2001, já fora discutido como a relação entre rigor e intuição afeta influencia tanto ao formador de professores de matemática, quanto ao futuro professor de matemática. Aqui, tentarei, aprofundar o estudo de matemática e analisar algumas categorias de conhecimento profissional do professor (AU)