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1.
Br J Ophthalmol ; 106(4): 528-533, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-33293271

RESUMEN

AIM: To prospectively monitor subclinical changes in capillary perfusion and retinal layer thickness in patients with type 2 diabetes and early diabetic retinal disease over 2 years. METHODS: In this longitudinal study we performed biannual retinal vascular imaging using optical coherence tomography angiography (RTVue) to analyse the foveal avascular zone (FAZ) area, perimeter, acircularity index (AI) and parafoveal superficial/deep vessel density (VD). Spectral-domain optical coherence tomography (Spectralis) was used to measure the thickness of nine macular layers and the peripapillary nerve fibre layer. RESULTS: Among 117 eyes (58 left) of 59 patients (21 female), 105 had no diabetic retinopathy (DR), 6 mild and 6 moderate non-proliferative DR at baseline. We found DR progression in 13 eyes at year 2. The FAZ area (+0.008±0.002 mm2/year, p<0.0001), perimeter (+0.036±0.010 mm/year, p=0.006) and AI (+0.005±0.002/year, p=0.0280) increased significantly. A pronounced decrease was found in the superficial (-1.425±0.290%/year, p<0.0001) but not the deep VD. Inner neuroretinal loss was confined to the ganglion cell (-0.539±0.150 µm/year, p=0.0004) and the inner plexiform layer (-0.361±0.127 µm/year, p=0.0045). In the outer retina, we observed a statistically significant decrease in thickness in the outer plexiform, photoreceptor layer and pigment epithelium of -0.921±0.161 µm/year, -0.325±0.139 µm/year and -0.385±0.084 µm/year, respectively. CONCLUSION: Subclinical signs of microangiopathy and neurodegeneration appear in parallel and are highly progressive even in the earliest stages of diabetic retinal disease. Trial registration number EudraCT20156000239634.


Asunto(s)
Diabetes Mellitus Tipo 2 , Retinopatía Diabética , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/diagnóstico , Retinopatía Diabética/diagnóstico , Femenino , Angiografía con Fluoresceína/métodos , Humanos , Estudios Longitudinales , Masculino , Perfusión , Vasos Retinianos/diagnóstico por imagen , Tomografía de Coherencia Óptica/métodos
2.
J Pediatr ; 226: 142-148.e5, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32590001

RESUMEN

OBJECTIVE: To examine whether parenteral nutrition using a mixed lipid emulsion containing fish oil improves the neurodevelopmental outcomes of extremely low birth weight infants. STUDY DESIGN: The study is a secondary outcome analysis of a double-blind randomized trial of 230 extremely low birth weight infants performed at a single level IV neonatal care unit (Medical University Vienna; June 2012 to June 2015). Participants received either a mixed lipid emulsion composed of soybean oil, medium chain triglycerides, olive oil, and fish oil, or a soybean oil-based lipid emulsion for parenteral nutrition. Neurodevelopment of study participants was assessed at 12 and 24 months corrected age (August 2013 to October 2017) using the Bayley Scales of Infant-Toddler Development, third edition. RESULTS: At discharge, 206 of the 230 study participants were eligible. At 12 and 24 months corrected age, 174 of 206 (85%) and 164 of 206 (80%) infants were evaluated. At 12 months, there was no significant difference in cognitive (mixed lipid: median, 95 [IQR, 85-101]; soybean oil: median, 95 [IQR, 85-100]; P = .71), language (mixed lipid: median, 86 [IQR, 77-94], soybean oil: median, 89 [IQR, 79-94]; P = .48), or motor scores (mixed lipid: median, 88 [IQR, 76-94], soybean oil: median, 88 [IQR, 79-94]; P = .69). At 24 months, there was again no significant difference in cognitive (mixed lipid: median, 95 [IQR, 80-105], soybean oil: median, 95 [IQR, 90-105]; P = .17), language (mixed lipid: median, 89 [IQR, 75-97], soybean oil 89 [IQR, 77-100]; P = .54), and motor scores (mixed lipid: median, 94 [IQR, 82-103], soybean oil: median, 94 [IQR, 85-103]; P = .53). CONCLUSIONS: Parenteral nutrition using a mixed lipid emulsion containing fish oil did not improve neurodevelopment of extremely low birth weight infants at 12 and 24 months corrected age. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01585935.


Asunto(s)
Emulsiones Grasas Intravenosas/uso terapéutico , Aceites de Pescado/uso terapéutico , Trastornos del Neurodesarrollo/prevención & control , Nutrición Parenteral , Método Doble Ciego , Femenino , Humanos , Recien Nacido con Peso al Nacer Extremadamente Bajo , Recién Nacido , Recien Nacido Prematuro , Masculino , Trastornos del Neurodesarrollo/epidemiología , Aceite de Oliva/uso terapéutico , Aceite de Soja/uso terapéutico , Triglicéridos/uso terapéutico
3.
Sci Rep ; 10(1): 8155, 2020 05 18.
Artículo en Inglés | MEDLINE | ID: mdl-32424128

RESUMEN

Clinical tests assessing olfactory performance have become indispensable for diagnosing olfactory dysfunction. As time and personnel resources are limited, it would be advantageous to have shorter protocols focusing on singular aspects of olfactory performance, such as odor identification. However, such a unidimensional approach is often inconclusive and needs further tests (and tools). Hence, new testing methods with high levels of sensitivity, specificity, and reproducibility are required for clinical practice. Here, we developed a Sniffin' Sticks odor mixture identification test method (SSomix), with emphasis on resource efficiency and simplicity of administration. SSomix consists of mixtures of two and three odors applied onto a piece of paper using 11 out of 16 items from the original Sniffin' Sticks identification test kit. A total of 66 healthy subjects and 22 patients with olfactory dysfunction were included in the study. SSomix showed good to excellent test-retest reliability and validity. The area under the receiver operating characteristics curves indicated good diagnostic accuracy in identifying patients with reduced and severely impaired olfactory function. SSomix was a suitable downsizing of the original kit, especially regarding resource efficiency.


Asunto(s)
Trastornos del Olfato/diagnóstico , Olfato , Adulto , Anciano , Anciano de 80 o más Años , Técnicas y Procedimientos Diagnósticos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Odorantes/análisis , Trastornos del Olfato/fisiopatología , Umbral Sensorial , Adulto Joven
4.
J Surg Educ ; 77(5): 1271-1278, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32205111

RESUMEN

OBJECTIVE: The current study assesses the feasibility of in vitro practice of percutaneous puncture techniques in a pulsatile flow-model. DESIGN: Prospective, controlled, randomized study. SETTING: The percutaneous access to endovascular aortic repair is considered safe, but success rates may be dependent on surgeon experience with the technique. PARTICIPANTS: Fourteen vascular surgery trainees and consultants were enrolled and randomized to a study or control group with both groups receiving instructions by a tutor on how to perform ultrasound guided percutaneous puncture and closure using a suture-mediated closure device. The study group received additional hands-on training on a pulsatile flowmodel of the groin and the performance of both groups was then graded. Study group participants were timed during and after their training on the model. RESULTS: The study group achieved higher overall grading than the control group on a 5-point scale with higher scores indicating a better performance (mean overall scores 4.0 ± 0.7 versus 2.8 ± 1.0, respectively; p = 0.03). Experienced participants (more than 20 punctures performed before the study) achieved higher overall scores than trainees (3.8 ± 0.4 versus 2.5 ± 0.8, respectively; p = 0.01). Five participants in the study group could deploy and close the ProGlide closure device correctly without the help of a tutor while being graded (71% in the study versus 0% in the control group; p = 0.02). Study group participants improved their overall score from 3.2 ± 0.9 to 4.0 ± 0.7 during training (p = 0.02). Time needed to complete the puncture and closure reduced from 456 seconds on average before, to 302 seconds after training (p < 0.001). CONCLUSIONS: Study group participants could improve their overall score while working on the simulator. More experienced participants performed better during the simulation, which may indicate the model to be life-like and a potential skills assessment tool. Simulation training may be a valuable adjunct to traditional forms of training when teaching an endovascular technique but is limited by its reliance on simulators and demo devices.


Asunto(s)
Procedimientos Endovasculares , Arteria Femoral , Arteria Femoral/diagnóstico por imagen , Humanos , Estudios Prospectivos , Punciones , Resultado del Tratamiento , Ultrasonografía Intervencional
5.
ESMO Open ; 5(2)2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-32188713

RESUMEN

INTRODUCTION: The prognostic value of symptoms at disease presentation of advanced gastro-oesophageal cancer is unknown. Thus, the aim of this study was to characterise these symptoms and correlate them with the outcome, so new prognostic markers can be defined. METHODS: We analysed clinical data including symptoms, therapies and survival of patients with stage IV gastro-oesophageal cancer treated between 2002 and 2018 at the Vienna General Hospital, Austria. Initial symptoms as well as stenosis in endoscopy and HER2 positivity were evaluated in a cross-validation model to ascertain the impact of each variable on patient survival. RESULTS: In total, 258 patients were evaluated. Five factors (stenosis in endoscopy, weight loss, HER2 positivity, dyspepsia, ulcer or active bleeding) have proven to be statistically relevant prognostic factors and were given a count of +1 and -1, if applicable. The resulting score ranges between -3 and +2. The survival probability for 180 days with a score of -3/-2, -1, 0, +1 and +2 is 90%, 80%, 73%, 72% and 42%, whereas for 2 years, it is 30%, 30%, 8%, 7% and 3%, respectively. The median overall survival of a score of -3/-2, -1, 0, +1 and +2 was 579 (95% CI 274 to not measurable), 481 (95% CI 358 to 637), 297 (95% CI 240 to 346), 284 (95% CI 205 to 371), 146 (95% CI 120 to 229) days, respectively. CONCLUSION: The data from this retrospective study indicate that the Viennese risk prediction score for Advanced Gastroesophageal carcinoma based on Alarm Symptoms score provides independent prognostic information that may support clinical decision making at diagnosis of advanced gastro-oesophageal cancer. Our findings should be evaluated in prospective studies.


Asunto(s)
Neoplasias Esofágicas/diagnóstico , Neoplasias Gástricas/diagnóstico , Neoplasias Esofágicas/patología , Femenino , Humanos , Masculino , Pronóstico , Estudios Retrospectivos , Factores de Riesgo , Neoplasias Gástricas/patología , Resultado del Tratamiento
6.
J Clin Med ; 9(2)2020 Feb 06.
Artículo en Inglés | MEDLINE | ID: mdl-32041127

RESUMEN

BACKGROUND: This study aimed to provide an extensive and up-to-date analysis of running-related injuries (RRI) and analyze a broad range of contributing factors for a large heterogeneous and non-selected running population from Central Europe. METHODS: Anthropometric, training, footwear, anatomic malalignment, and injury data from 196 injured runners were assessed case-controlled and retrospectively. Univariate and multivariate regression models were developed to identify associated factors for specific injury locations and diagnoses. RESULTS: The majority of patients were female (56%). Three most frequently observed malalignments included varus knee alignment, pelvic obliquity, and patellar squinting. The most common injuries were the patellofemoral pain syndrome (PFPS), the iliotibial band friction syndrome (ITBFS), patellar tendinopathy, spinal overload, and ankle instability. A number of contributing factors were identified. Previous injury history was a contributing factor for knee injuries and ITBFS. Lower training load was reported with a higher incidence of PFPS, while a higher training load was positively associated with injuries of the lower leg. Runners with a higher body mass index (BMI) were at a significantly higher risk for lower back injuries. CONCLUSIONS: Running-related injuries are multifactorial associated with a combination of variables including personal data, training load, anatomic malalignments, and injury history. They can furthermore result from a lack of experience/training as well as from overuse. Suffering a specific RRI of high risk could be defined based on individual predispositions and help to induce appropriate training balance.

7.
J Clin Med ; 9(2)2020 Jan 29.
Artículo en Inglés | MEDLINE | ID: mdl-32013176

RESUMEN

Odor (including flavor) perception plays a major role in dietary behavior. Orthonasal olfactory function (OOF) has been shown to decrease in obese subjects. Changes in retronasal olfactory function (ROF) after weight loss and in the individual significance of olfaction (ISO) in obesity are yet to be investigated. Firstly, 15 obese subjects were recruited in a pilot study and supported to conventionally lose weight. OOF (Sniffin' Sticks) was measured at the beginning and after 5.6 ± 1.3 months. Eleven subjects re-visited but barely lost weight and no major changes in OOF were observed. Secondly, the body-mass-index (BMI), OOF, and ROF (Candy Smell Test, CST) were recorded in subjectively olfactory-healthy subjects (SOHSs) and additionally the ISO questionnaire was collected in patients with olfactory dysfunction (OD). BMI correlated significantly negatively with odor discrimination (p = 0.00004) in 74 SOHSs and negatively with CST (p < 0.0001) in 66 SOHSs. In 48 SOHSs, there was a gender difference in ISO scores (p = 0.034), but no significant correlation with BMI was found (p > 0.05). ISO scores were significantly higher in 52 OD patients in comparison to SOHSs (p = 0.0382). Not only OOF but also ROF may decline with higher BMI. ISO does not seem to alter with BMI, but olfaction becomes more important once it is consciously impaired.

8.
Br J Ophthalmol ; 104(6): 868-873, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-31473626

RESUMEN

BACKGROUND/AIMS: Optical coherence tomography (OCT) is commonly used to diagnose and assess diabetic macular oedema (DME). Swept-source OCT (SS-OCT) promises improved imaging depth and more independence from media opacities. Heidelberg Spectralis full-depth imaging (FDI) combines details at different depths to one representation. The aim of this study was to determine the comparability of the imaging methods concerning DME ultrastructure. METHODS: Two graders assessed the presence of typical DME phenomena in eyes with centre-involving DME on Topcon Atlantis SS-OCT and Heidelberg Spectralis FDI spectral-domain OCT (SD-OCT) B-scans. Retinal layer segmentation was corrected and choroidal layers were manually segmented. Graders measured cyst and subretinal fluid (SRF) diameters and counted hyper-reflective foci (HRF). Findings were recorded and statistically analysed. RESULTS: Statistically significant systematic biases (Spectralis-Atlantis) were found for the HRF count (outside the central mm, -6.39, p=0.0338), chorioretinal thickness (central mm: -35.45 µm, p=0.00034), choroidal thickness (central mm: -60.97 µm, p=0.00004) and Sattler's layer thickness (-42.69 µm, p=0.0001). Intergrader agreement was excellent or very good for posterior vitreous detachment, vitreomacular attachment (central mm) and SRF presence in both devices. Manually delineated Sattler's layer thickness showed an intraclass correlation of 0.85 with FDI SD-OCT but 0.26 with SS-OCT (p=0.003). CONCLUSION: Prominent aspects such as cysts in the outer nuclear layer and SRF can be identified with comparable confidence, while a significant systematic bias underlies chorioretinal, choroidal and Sattler's layer thickness and HRF count. Specialists should use the same device at every examination during longitudinal clinical consideration or cross-sectional evaluation of these ultrastructural biomarkers.


Asunto(s)
Coroides/ultraestructura , Retinopatía Diabética/diagnóstico , Mácula Lútea/ultraestructura , Edema Macular/diagnóstico , Tomografía de Coherencia Óptica/métodos , Anciano , Estudios Transversales , Retinopatía Diabética/complicaciones , Femenino , Humanos , Masculino , Estudios Prospectivos
9.
Clin Anat ; 33(4): 507-515, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31056785

RESUMEN

Knowledge about the variable course of the perforating arteries near the body of the femur is essential during surgical procedures (e.g., percutaneous cerclage wiring, plate osteosynthesis, Ilizarov technique). Our aims were to determine the number of perforating arteries, and to identify safe zones along the body of the femur within which perforating arteries are unlikely to pass toward the back of the thigh. The number of perforating arteries was determined in both legs of 100 formalin-fixed anatomic specimens of both sexes. The level of passage of perforating arteries near the body of the femur was measured in reference to a line from the anterior superior iliac spine to the medial femoral condyle. In each leg, two to seven perforating arteries were present. In 64% of legs, at least one artery divided into two to four branches before entering the back of the thigh. Thus, the total number of branches passing near the body of the femur varied between two to nine. Perforating arteries passed to the back of the thigh at every level between 14.0 and 36.5 cm from the anterior superior iliac spine (16-39% of the leg length). Within this distance, no safe zones along the body of the femur could be identified. The present study shows the high variability regarding number and course of the perforating arteries. Surgeons can be faced with an artery at every level on the posteromedial aspect of the body of the femur between 14.0 and 36.5 cm distally to the anterior superior iliac spine. Clin. Anat. 33:507-515, 2020. © 2019 Wiley Periodicals, Inc.


Asunto(s)
Arteria Femoral/anatomía & histología , Fémur/irrigación sanguínea , Muslo/irrigación sanguínea , Anciano de 80 o más Años , Cadáver , Disección , Humanos , Masculino
10.
Retina ; 40(11): 2148-2157, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31842189

RESUMEN

PURPOSE: To quantify morphologic photoreceptor integrity during anti-vascular endothelial growth factor (anti-VEGF) therapy of neovascular age-related macular degeneration and correlate these findings with disease morphology and function. METHODS: This presents a post hoc analysis on spectral-domain optical coherence tomography data of 185 patients, acquired at baseline, Month 3, and Month 12 in a multicenter, prospective trial. Loss of the ellipsoid zone (EZ) was manually quantified in all optical coherence tomography volumes. Intraretinal cystoid fluid, subretinal fluid (SRF), and pigment epithelial detachments were automatically segmented in the full volumes using validated deep learning methods. Spatiotemporal correlation of fluid markers with EZ integrity as well as bivariate analysis between EZ integrity and best-corrected visual acuity was performed. RESULTS: At baseline, EZ integrity was predominantly impaired in the fovea, showing progressive recovery during anti-vascular endothelial growth factor therapy. Topographic analysis at baseline revealed EZ integrity to be more likely intact in areas with SRF and vice versa. Moreover, we observed a correlation between EZ integrity and resolution of SRF. Foveal EZ integrity correlated with best-corrected visual acuity at all timepoints. CONCLUSION: Improvement of EZ integrity during anti-VEGF therapy of neovascular age-related macular degeneration occurred predominantly in the fovea. Photoreceptor integrity correlated with best-corrected visual acuity. Ellipsoid zone integrity was preserved in areas of SRF and showed deterioration upon SRF resolution.


Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Neovascularización Coroidal/tratamiento farmacológico , Células Fotorreceptoras de Vertebrados/patología , Enfermedades de la Retina/diagnóstico por imagen , Degeneración Macular Húmeda/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Neovascularización Coroidal/fisiopatología , Femenino , Angiografía con Fluoresceína , Humanos , Procesamiento de Imagen Asistido por Computador , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Ranibizumab/uso terapéutico , Líquido Subretiniano , Tomografía de Coherencia Óptica , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores , Agudeza Visual , Degeneración Macular Húmeda/fisiopatología
11.
Retina ; 40(10): 1964-1971, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31800461

RESUMEN

PURPOSE: The impact of peripheral retinal lesions (PL) visualized with ultra-wide-field imaging on diabetic retinopathy (DR) remains unclear. The purpose of this study was to assess the presence of PL and their association with macular microvasculopathy, metabolic dysfunction, and neurodegeneration in patients with Type II diabetes and early retinal disease. METHODS: Forty-five degree color fundus (Topcon) and 200° ultra-wide-field images (Optos) were assessed for the presence and severity of DR. Lesions anterior to the 45° were considered peripheral. The foveal avascular zone area, perimeter and acircularity index, and foveal full-retina and parafoveal superficial/deep complex vessel density were evaluated with RTVue optical coherence tomography angiography. Vessel oxygen saturation was measured with oximetry. Peripapillary retinal nerve fiber and individual macular retinal layer thicknesses were measured with Spectralis optical coherence tomography. RESULTS: Among the 161 eyes (80 left eyes) of 81 patients (34 female), 64 (39.8%) showed higher levels of DR on ultra-wide-field than on 45° fundus images (P < 0.0001). PL were identified in 97 eyes (60.3%) and in 59 among 115 eyes without central signs of DR. No significant correlation to biomarkers of central microvascular disease (foveal avascular zone/vessel density variables), oxygen saturation, and retinal layer thickness was found. CONCLUSION: Ultra-wide-field imaging helps to detect more eyes with early DR due to the detection of PL, which appear independently of biomarkers of macular microvascular impairment, metabolic function, and neuropathy in eyes without central signs of DR. These results suggest that the evaluation of the retinal periphery may become crucial in DR screening if PL are proven to influence disease outcomes.


Asunto(s)
Diabetes Mellitus Tipo 2/diagnóstico , Retinopatía Diabética/diagnóstico , Oxígeno/sangre , Degeneración Retiniana/diagnóstico , Vasos Retinianos/fisiopatología , Adulto , Anciano , Retinopatía Diabética/fisiopatología , Femenino , Angiografía con Fluoresceína , Humanos , Masculino , Persona de Mediana Edad , Oximetría , Degeneración Retiniana/fisiopatología , Tomografía de Coherencia Óptica
12.
J Clin Med ; 8(12)2019 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-31766590

RESUMEN

Fine needle aspiration cytology (FNAC) is an important diagnostic tool for tumors of the head and neck. However, non-diagnostic or inconclusive results may occur and lead to delay in treatment. The aim of this study was to evaluate the factors that predict a successful FNAC. A retrospective search was performed to identify all patients who received an FNAC at the Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Vienna. The variables were patients' age and sex, localization and size of the punctured structure, previous radiotherapy, experience of the head and neck surgeon, experience of the pathologist and the FNAC result. Based on these parameters, a nomogram was subsequently created to predict the probability of accurate diagnosis. After performing 1221 FNACs, the size of the punctured lesion (p = 0.0010), the experience of the surgeon and the pathologist (p = 0.00003) were important factors for a successfully procedure and reliable result. FNACs performed in nodes smaller than 20 mm had a significantly worse diagnostic outcome compared to larger nodes (p = 0.0004). In conclusion, the key factors for a successful FNAC are nodal size and the experience of the head and neck surgeon and the pathologist.

13.
Sci Rep ; 9(1): 3741, 2019 03 06.
Artículo en Inglés | MEDLINE | ID: mdl-30842625

RESUMEN

Rotational thromboelastometry is recommended to guide haemostatic therapy in trauma-related coagulopathy. In the case of unsuccessful venepuncture, intraosseous access allows immediate administration of drugs and volume replacement. Feasibility of rotational thromboelastometry from intraosseous blood has not yet been investigated in humans. We performed rotational thromboelastometry and standard coagulation assays from intraosseous and intravenous blood samples in 19 volunteers and 4 patients undergoing general anaesthesia. Intraosseous access was performed either at the tibial bone or the proximal humerus. We observed visible clotting in the majority of the intraosseous samples. Only 13% of the probes allowed realization of rotational thromboelastometry. ROTEM parameters are reported as follows: shorter median clotting time (CT) in EXTEM, INTEM, and APTEM (53 vs. 68 s; 140 vs. 154 s; 54 vs. 62.5 s) and smaller median maximal clot firmness (MCF) in EXTEM and APTEM (56 vs. 63 mm; 55 vs. 62 mm) in intraosseous samples. We found no relevant differences in median MCF values in FIBTEM and INTEM (12 vs. 13 mm; 60 vs. 59 mm). Given the difficulties we faced during IO blood sampling in a study setting, we advise against ROTEM measurements out of IO blood for guidance of procoagulant therapy in emergency situations.


Asunto(s)
Húmero/irrigación sanguínea , Tromboelastografía/métodos , Tibia/irrigación sanguínea , Heridas y Lesiones/sangre , Adolescente , Adulto , Coagulación Sanguínea , Estudios de Casos y Controles , Estudios de Factibilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Venas , Adulto Joven
16.
Acta Ophthalmol ; 97(4): e545-e550, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30311432

RESUMEN

PURPOSE: The pathophysiology of diabetic neurodegeneration and microvasculopathy remains controversial. Neurosensory layer thickness and corneal nerve fibre loss represent potential biomarkers of neuropathy. The purpose of this cross-sectional study was to determine the correlation between these neurodegenerative features and their association with retinal microvascular integrity in patients with type II diabetes without retinopathy. METHODS: Nerve fibre length (NFL), density (NFD) and branch density (NBD) were assessed using corneal confocal microscopy. Spectralis optical coherence tomography (OCT) was used for peripapillary retinal nerve fibre layer (RNFL), and macular RNFL, ganglion cell (GCL), inner plexiform (IPL) and inner nuclear layer (INL) thicknesses. Parafoveal vessel density (PVD) was determined using OCT angiography. RESULTS: We analysed 118 eyes of 61 patients. Peripapillary RNFL, macular RNFL, GCL, IPL and INL were 101 ± 8, 29 ± 3, 43 ± 4, 36 ± 3 and 36 ± 3 µm. NFL, NFD and NBD were 12.3 ± 4.4 mm/mm2 , 17.8 ± 7.4/mm2 and 26.7 ± 15.2/mm2 . Corneal nerve fibre variables were neither associated with inner retinal thicknesses nor PVD. A significant positive correlation was found between macular GCL, IPL and peripapillary RNFL with deep capillary plexus PVD (p ≤ 0.05). CONCLUSION: Our results indicate that corneal and retinal neurodegeneration are independent changes early in type II diabetes and that distinct retinal, but not corneal neurodegenerative features, are associated with retinal microvascular perfusion.


Asunto(s)
Enfermedades de la Córnea/diagnóstico , Diabetes Mellitus Tipo 2/complicaciones , Microcirculación/fisiología , Microvasos/patología , Degeneración Retiniana/diagnóstico , Células Ganglionares de la Retina/patología , Vasos Retinianos/patología , Córnea/patología , Enfermedades de la Córnea/etiología , Enfermedades de la Córnea/fisiopatología , Estudios Transversales , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/fisiopatología , Femenino , Humanos , Masculino , Microscopía Confocal , Persona de Mediana Edad , Fibras Nerviosas/patología , Degeneración Retiniana/etiología , Degeneración Retiniana/fisiopatología , Tomografía de Coherencia Óptica/métodos , Agudeza Visual
17.
EMBO J ; 37(19)2018 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-30087110

RESUMEN

Epitranscriptomic events such as adenosine-to-inosine (A-to-I) RNA editing by ADAR can recode mRNAs to translate novel proteins. Editing of the mRNA that encodes actin crosslinking protein Filamin A (FLNA) mediates a Q-to-R transition in the interactive C-terminal region. While FLNA editing is conserved among vertebrates, its physiological function remains unclear. Here, we show that cardiovascular tissues in humans and mice show massive editing and that FLNA RNA is the most prominent substrate. Patient-derived RNA-Seq data demonstrate a significant drop in FLNA editing associated with cardiovascular diseases. Using mice with only impaired FLNA editing, we observed increased vascular contraction and diastolic hypertension accompanied by increased myosin light chain phosphorylation, arterial remodeling, and left ventricular wall thickening, which eventually causes cardiac remodeling and reduced systolic output. These results demonstrate a causal relationship between RNA editing and the development of cardiovascular disease indicating that a single epitranscriptomic RNA modification can maintain cardiovascular health.


Asunto(s)
Presión Sanguínea , Filaminas/metabolismo , Hipertensión/metabolismo , Contracción Muscular , Miocardio/metabolismo , Edición de ARN , Precursores del ARN/metabolismo , Remodelación Vascular , Animales , Filaminas/genética , Ventrículos Cardíacos/metabolismo , Ventrículos Cardíacos/patología , Humanos , Hipertensión/genética , Hipertensión/patología , Ratones , Miocardio/patología , Precursores del ARN/genética , Análisis de Secuencia de ARN
18.
Am J Phys Med Rehabil ; 97(9): 651-658, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29613883

RESUMEN

OBJECTIVE: The aim of the study was to follow both the structure- and function-related long-term course of shoulders that had been treated with therapeutic ultrasound for symptomatic calcific tendinitis. DESIGN: This is a long-term follow-up of 45 shoulders (37 patients) that had been treated for symptomatic calcific tendinitis with either a series of ultrasound or sham ultrasound 10 yrs ago. The main outcome variables were presence of calcium deposits and subacromial impingement on standardized x-ray imaging, shoulder symptoms (Binder score), and function (Constant score). RESULTS: At 10 yrs, a similar proportion of calcium deposits had resolved in 78% of the originally ultrasound treated compared with 83% of sham-treated shoulders, whereas at 9 mos, significantly more calcium deposits had been resolved in the ultrasound group (P = 0.045). Relative to baseline, shoulder symptoms and function had significantly improved at both the 10-yr and 9-mo follow-up examinations with no significant differences between groups. Regular sports performance at baseline predicted a favorable long-term outcome. CONCLUSIONS: Symptomatic calcific tendinitis of the shoulder has a good likelihood to completely resolve in the long term. Treating the calcium deposit effectively, however, may not be causal to the recovery from symptoms and function in calcific tendinitis.


Asunto(s)
Calcinosis/terapia , Síndrome de Abducción Dolorosa del Hombro/terapia , Articulación del Hombro/fisiopatología , Tendinopatía/terapia , Terapia por Ultrasonido , Adulto , Anciano , Índice de Masa Corporal , Calcinosis/diagnóstico por imagen , Calcinosis/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Radiografía , Recurrencia , Síndrome de Abducción Dolorosa del Hombro/fisiopatología , Articulación del Hombro/diagnóstico por imagen , Dolor de Hombro/fisiopatología , Dolor de Hombro/terapia , Deportes , Tendinopatía/fisiopatología
19.
Placenta ; 62: 9-15, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29405972

RESUMEN

OBJECTIVE: Aim of the study was to assess the correlation of first trimester serum afamin levels with three-dimensional placental bed vascularization in pregnant women and its prognostic value for predicting pre-eclampsia and future fetal and maternal complications during pregnancy. METHODS: In this nested case-control study all pregnant women registered for delivery during a period of 3 years were routinely screened in the first trimester. Serum afamin levels were assessed in 764 women and correlated to 5 pregnancy outcome groups: gestational hypertension (n = 76), pre-eclampsia (n = 33), intrauterine growth restriction (n = 91), pre-term birth (n = 39), gestational diabetes mellitus (n = 170); In addition, measurements of first trimester myometrial vascularization index were performed and, in combination with afamin tested as a possible screening method to detect women at-risk for the development of adverse complications in low-risk pregnancies at the time of the first trimester. RESULTS: The results showed significantly higher serum afamin levels in women with pre-eclampsia (P<.05) and gestational diabetes mellitus (P<.05) compared to healthy pregnant women. There was no significant difference in serum afamin levels between all other pregnancy outcome groups and healthy controls. In women developing pre-eclampsia during pregnancy, afamin (OR = 1.0197, P < .05) and myometrial vascular index (OR = 0.9235, P < .001) were verified to have a significant prognostic value. Detection of pre-eclampsia in first trimester screening by a combination of afamin and myometrial vascular index performed best (AUC = 0.818). DISCUSSION: Hence, first trimester screening for pre-eclampsia could be provided by a combination of afamin and placental bed vascularization. Moreover, the combination of first trimester serum afamin levels with BMI could provide a possible screening for gestational diabetes mellitus.


Asunto(s)
Proteínas Portadoras/sangre , Diabetes Gestacional/diagnóstico , Glicoproteínas/sangre , Neovascularización Patológica/diagnóstico por imagen , Placenta/irrigación sanguínea , Preeclampsia/diagnóstico , Adulto , Biomarcadores/sangre , Estudios de Casos y Controles , Diabetes Gestacional/sangre , Femenino , Humanos , Placenta/diagnóstico por imagen , Preeclampsia/sangre , Embarazo , Resultado del Embarazo , Primer Trimestre del Embarazo , Estudios Retrospectivos , Albúmina Sérica Humana , Ultrasonografía Prenatal , Adulto Joven
20.
Acta Ophthalmol ; 96(7): e776-e782, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29338130

RESUMEN

PURPOSE: The purpose of this study was to identify quantitatively measurable morphologic optical coherence tomography (OCT) characteristics in patients with an acute episode of central serous chorioretinopathy (CSC) and evaluate their correlation to functional and psychological variables for their use in daily clinical practice. METHODS: Retinal thickness (RT), the height, area and volume of subretinal fluid (SRF)/pigment epithelium detachments were evaluated using the standardized procedures of the Vienna Reading Center. These morphologic characteristics were compared with functional variables [best-corrected visual acuity (BCVA), contrast sensitivity (CS), retinal sensitivity/microperimetry, fixation stability], and patients' subjective handicap from CSC using the National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25). RESULTS: Data from 39 CSC patients were included in this analysis. Three different SRF height measures showed a high negative correlation (r = -0.7) to retinal sensitivity within the central 9°, which was also negatively correlated with SRF area and volume (r = -0.6). The CS score and fixation stability (fixation points within 2°) showed a moderate negative correlation (r = -0.4) with SRF height variables. Comparison of the subjective handicap with morphological characteristics in spectral-domain (SD)-OCT showed SRF height had the highest correlation (r = -0.4) with the subjective problems reported and overall NEI VFQ-25 score. CONCLUSION: In conclusion, SRF height measured in SD-OCT showed the best correlation with functional variables and patients' subjective handicap caused by the disease and therefore seems to be the best variable to look at in daily clinical routine. Even though area and volume also show a correlation, these cannot be so easily measured as height and are therefore not suggested for daily clinical routine.


Asunto(s)
Coriorretinopatía Serosa Central/fisiopatología , Calidad de Vida , Retina/fisiopatología , Perfil de Impacto de Enfermedad , Enfermedad Aguda , Adulto , Coriorretinopatía Serosa Central/diagnóstico por imagen , Femenino , Angiografía con Fluoresceína , Humanos , Masculino , Persona de Mediana Edad , Epitelio Pigmentado de la Retina/fisiopatología , Estudios Retrospectivos , Líquido Subretiniano/fisiología , Encuestas y Cuestionarios , Tomografía de Coherencia Óptica , Agudeza Visual/fisiología , Pruebas del Campo Visual , Campos Visuales/fisiología
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