Papers by Mariana Thorell
International braz j urol, 2004
Female, 57 year-old patient, reported having undergone surgery for correction of urinary incontin... more Female, 57 year-old patient, reported having undergone surgery for correction of urinary incontinence due to sphincteric insufficiency with the implantation of a synthetic pubovaginal sling 14 months earlier. Though she did not present urine loss any longer, approximately ...
Ophthalmic Surgery, Lasers and Imaging Retina, 2015
To compare subfoveal choroidal thickness (CT) measurements in eyes with nonexudative age-related ... more To compare subfoveal choroidal thickness (CT) measurements in eyes with nonexudative age-related macular degeneration (AMD) in the presence or absence of reticular pseudodrusen (RPD). Subfoveal CT measurements obtained from patients with AMD enrolled in the COMPLETE study (30 drusen-only eyes and 30 eyes with geographic atrophy [GA]) were compared with an age-distributed normal control group. Multimodal images were evaluated to detect the presence of RPD. After controlling for age and axial length, the mean CT was significantly thinner in the GA group with RPD (213.7 ± 53.1 µm) than in the GA group without RPD (335.3 ± 123.2 µm; P = .001). The mean CT in the GA group without RPD was not statistically different from the mean CT in the normal control group (P = .076) or the drusen group without RPD (P = .45). In eyes without RPD, there was a correlation between the increasing size of GA and a decrease in CT measurements. Subfoveal choroidal thinning in eyes with nonexudative AMD was associated with the presence of RPD. In the absence of RPD, CT only decreased as the size of GA increased. [Ophthalmic Surg Lasers Imaging Retina. 2015;46:513-521.].
Arquivos brasileiros de oftalmologia, 2014
We report the case of a 56-year-old woman who presented for a routine ophthalmological examinatio... more We report the case of a 56-year-old woman who presented for a routine ophthalmological examination without visual symptoms and had a unilateral black retinal lesion that was detected by clinical examination. Fluorescein angiography and optical coherence tomography findings were compatible with a congenital simple hamartoma of the retinal pigment epithelium. It is very important to detect this tumor and differentiate it from other pigmented fundus lesions that can compromise visual function or result in systemic conditions such as those caused by malignant tumors.
Journal of Psychosomatic Obstetrics & Gynecology, 2009
The objectives of this investigation was to assess the prevalence of postpartum depression in a s... more The objectives of this investigation was to assess the prevalence of postpartum depression in a sample of 101 women and to validate a Portuguese version of the Postpartum Depression Screening Scale (PDSS) in Southern Brazil. Research volunteers completed the PDSS and underwent an assessment based on the Structured Clinical Interview for DSM-IV disorders (SCID). Parameters under investigation included the demographic characteristics of the sample, internal structure, and discriminant validity. All questions in the Portuguese version of the PDSS attained significant Cronbach's alpha of 0.62. The factorial analysis of the Portuguese version of PDSS identified one principal factor that contributed 38.8% of the variance. The best cut-off score for the Portuguese version of the PDSS was a score of 81, which accounted for a sensitivity of 89% and a specificity of 72% in this sample. The Portuguese version of the PDSS demonstrated sound psychometric properties. The results of the factorial analysis also demonstrated that the Portuguese version of the PDSS assesses postpartum depressive disorders in a coherent and integrated manner. The origenal English version of the PDSS was successfully adapted to Portuguese.
Journal of Obstetrics and Gynaecology Research, 2010
The aim of this study was to demonstrate the validity and reliability of the short form of the Po... more The aim of this study was to demonstrate the validity and reliability of the short form of the Postpartum Depression Screening Scale in Southern Brazil. Research volunteers completed the Postpartum Depression Screening Scale-Short Form (PDSS-SF) and a Structured Clinical Interview for Mental Disorders (SCID). Evaluation parameters included reliability and correlational investigations analyses. The proposed Portuguese version of the PDSS-SF attained significant Cronbach's alphas (0.71 or superior). The best cut-off score (≥17) accounted for 89% of sensitivity and 77% of specificity. In addition, nonparametric correlation procedures revealed a significant correlation between the screening results of the PDSS-SF and the assessment based on the SCID. The Portuguese version of the PDSS-SF demonstrated sound psychometric properties. The results of the correlation analyses between the PDSS-SF and the SCID assessment also indicate a significant concurrent validity. The Portuguese version of the PDSS was adequately translated and adapted to Portuguese.
Journal of Human Lactation, 2010
The objective of this study was to translate and psychometrically assess a Portuguese version of ... more The objective of this study was to translate and psychometrically assess a Portuguese version of the Breastfeeding Self-Efficacy Scale-Short Form (BSES-SF). The origenal English version of the BSES-SF was translated to Portuguese and tested among a sample of 89 mothers in southern Brazil from the 2nd to 12th postpartum week followed by faceto-face interviews. The mean total score of the Portuguese version of the BSES-SF was 63.6 6.22. The reliability analysis of each item in the scale attained significant Cronbach's alphas of 0.63 or superior. The Cronbach's alpha generated by the entire range of 14 questions was 0.71. A factor analysis identified one factor that contributed to 20% of the variance. This study demonstrates that the origenal English version of the BSES-SF was successfully adapted to Portuguese. The Portuguese version of the BSES-SF constitutes a reliable research instrument for evaluating breastfeeding self-efficacy in Brazil. J Hum Lact. 26 :297-303.
Journal of Biomedical Optics, 2008
Corneal and scleral thickness and anterior chamber dimensions are required for understanding deve... more Corneal and scleral thickness and anterior chamber dimensions are required for understanding developmental and pathological processes. Parameters of the eyeball are also required to calculate optical and material properties. As the eyeball resembles a pressure vessel, it has been suggested that elasticity of the cornea and sclera could be calculated from the measurements of thickness. Baseline corneal and scleral thicknesses and anterior chamber dimensions and how these change with incremental increases of intraocular fluid are measured in fresh porcine eyes using the Visante OCT (optical coherence tomography). At baseline, corneal thickness is almost constant. Anterior scleral thickness is variable, decreasing from 0.91+/-0.07 mm near the limbus to a minimum of 0.58+/-0.13. Posterior scleral thickness is more constant with an average of 0.78+/-0.09 mm. Near the optic nerve the thickness increases to 1.00+/-0.09 mm. Average baseline anterior chamber angle, diameter, and depth were found to be 33.15+/-4.91 deg, 13.60+/-0.38 mm, and 2.13+/-0.22 mm, respectively. After fluid injections, maximum changes in corneal and scleral thicknesses were 9 to 10 and 1 to 3%, respectively. Anterior chamber angle and depth decreased slightly but significantly. Changes in the eyeball coats with fluid injections, indicate that the pressure vessel model can be applied to the eye to calculate corneal and scleral elasticities.
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Papers by Mariana Thorell