Photobiomodul Photomed Laser Surg
August 2024
In this work we demonstrate the first laboratory study results of lens fragmentation with low-energy picosecond ultrashort laser pulses after artificial induction of cataract with microwave radiation on an ex vivo animal model. This method will be evaluated with regard to the further development of lens fragmentation with novel ultrashort picosecond laser systems instead of ultrasonic phacoemulsification or the significantly more complex femtosecond laser fragmentation. As samples we used postmortem porcine eyes.
View Article and Find Full Text PDFThis case report details the assessment and interdisciplinary collaboration in the management of an 81-year-old patient presenting with acute visual impairment, dizziness, general weakness, gait disturbances and fear of falling. A holistic geriatric evaluation revealed orthostatic dysregulation and an underlying multifactorial gait disorder exacerbated by visual impairment. Ophthalmological findings included left central retinal artery branch occlusion and cataracts.
View Article and Find Full Text PDFFront Med (Lausanne)
February 2024
Purpose: This work demonstrates significant advantages in ophthalmic surgeries through the use of picosecond ultrashort laser pulses instead of state-of-the-art nanosecond laser pulses. These ultrashort lasers shall serve as universal tools more effectively combining advantages of high precision, low impact and economic advantages compared to existing instruments.
Methods: As samples, we used post-mortem porcine eyes on which we performed the experiments with both picosecond and nanosecond lasers.
Background And Purpose: There is growing evidence of leakage of gadolinium in an impaired blood-retina barrier. We investigated gadolinium enhancement in different eye compartments and correlated the enhancement with specific ophthalmologic diseases.
Materials And Methods: In a prospective clinical study (ClinicalTrials.
This study aimed to improve our previous urine gene expression classifiers focusing on the detection of non-high-risk non-muscle-invasive bladder cancer (NMIBC), and develop a new classifier able to decrease the frequency of cystoscopies during bladder cancer (BC) patients' surveillance. A total of 597 urines from BC patients, controls and patients in follow-up for BC (PFBC) were included. The study has 3 phases.
View Article and Find Full Text PDFIntroduction: The goal of this study was to examine the response of macular edema (ME) secondary to retinal vein occlusion (RVO) to predict macular edema course and re-injection intervals.
Material And Methods: Twenty-four eyes from 24 patients with ME secondary to RVO, both central (CRVO) and branch (BRVO), were retrospectively included. All eyes received intravitreal bevacizumab therapy (1.
Objective: This study aimed to validate, in a prospective, blinded, international and multicenter cohort, our previously reported four non-invasive tests for bladder cancer (BC) diagnosis based on the gene expression patterns of urine.
Methods: Consecutive voided urine samples from BC patients and controls were prospectively collected in five European centres (n=789). Finally, 525 samples were successfully analysed.
Coronin7 (CRN7) stabilizes F-actin and is a regulator of processes associated with the actin cytoskeleton. Its loss leads to defects in phagocytosis, motility and development. It harbors a CRIB (Cdc42- and Rac-interactive binding) domain in each of its WD repeat domains which bind to Rac GTPases preferably in their GDP-loaded forms.
View Article and Find Full Text PDFThe aim of the present review was to compare state-of-the-art care and future perspectives for the detection and treatment of non-muscle-invasive transitional cell carcinoma (TCC) of the bladder. We provide a summary of the third expert meeting on 'Optimising the management of non-muscle-invasive bladder cancer, organized by the European Association of Urology Section for Uro-Technology (ESUT) in collaboration with the Section for Uro-Oncology (ESOU), including a systematic literature review. The article includes a detailed discussion on the current and future perspectives for TCC, including photodynamic diagnosis, optical coherence tomography, narrow band imaging, the Storz Professional Image Enhancement system, magnification and high definition techniques.
View Article and Find Full Text PDFIntroduction: Partial nephrectomy (PN) is the standard therapy for small renal masses. Resection margin assessment continues to be a key issue during PN. Biopsy of the residual kidney and intraoperative gross pathological consultations are the most common methods today.
View Article and Find Full Text PDFBackground: Studies on hexaminolevulinate (HAL) cystoscopy report improved detection of bladder tumours. However, recent meta-analyses report conflicting effects on recurrence.
Objective: To assess available clinical data for blue light (BL) HAL cystoscopy on the detection of Ta/T1 and carcinoma in situ (CIS) tumours, and on tumour recurrence.
Objectives: To compare the results of preoperative scrotal color Doppler ultrasonography (CDS) and final diagnosis of subsequent surgical exploration in cases of suspected testicular torsion (TT).
Methods: This retrospective study included 298 boys with acute scrotum whose clinical presentation was suspicious of TT and who subsequently underwent emergency surgery regardless of CDS results.
Results: Mean patient age was 11.
Objective: To outline the features and outcomes of renal cell carcinoma (RCC) in native kidneys of renal transplant recipients, who are at increased risk of developing this disease.
Patients And Methods: We retrospectively studied the clinicopathological features and survival of 28 surgically treated RCCs, which developed in 24 renal transplant recipients. Features and outcomes were compared with 671 patients with RCC who had no renal transplant.
Background: The advantage of photodynamic diagnosis in detecting urothelial cell carcinoma (UCC) of the bladder has been demonstrated clearly, but it comes at the price of a higher false-positive rate. Optical coherence tomography (OCT) is a noninvasive, real-time, microstructural imaging modality that uses near-infrared light for a point analysis of the bladder-wall microstructure.
Objective: To evaluate whether adding targeted OCT analysis of lesions that are suspicious at white-light (WL) and hexaminolevulinate (HAL) fluorescence cystoscopy improves diagnostic accuracy in the detection of UCC.
Background: Modern histopathology is able to differentiate chromophobe renal cell carcinomas (cRCCs), oncocytomas, and chromophobe-oncocytic hybrid RCCs; however, the true frequency and clinical courses of these tumors remain unclear.
Objective: To determine the clinical course of hybrid RCC.
Design, Setting, And Participants: Ninety-one surgically treated tumors, originally classified as oncocytoma or cRCC, were slide reviewed and reclassified by an experienced uropathologist.
Klin Monbl Augenheilkd
February 2009
Background: The aim of this study was to compare macular thickness measurements obtained from time-domain optical coherence tomography (OCT) and spectral-domain OCT to evaluate their agreement.
Materials And Methods: Fifty randomly assigned subjects were included. Twenty-five were male, twenty-five female.
Purpose Of Review: Nonmuscle invasive bladder cancer represents a heterogeneous disease due to different natural history of its various appearances. The purpose of this article is to review recent literature regarding follow-up strategies.
Recent Findings: Management of nonmuscle invasive bladder cancer has become more complex in respect to diagnosis, treatment and follow-up.
Objective: To assess the correlation of erectile function (EF) and physical activity (PhA) by using standardized, validated instruments in healthy men.
Methods: A urologist examined 674 men aged 45-60 yr at their place of work. That included a urological physical examination, medical history, and assessment of testosterone (T) and sex hormone-binding globulin; all men completed the 5-item International Index of Erectile Function (IIEF-5) as well as the Paffenbarger score.
Purpose: To determine the effect of the modification of intraocular lens (IOL) surface properties on the adhesion of Staphylococcus epidermidis caused by fibronectin (FN) as the predominant proadhesive glycoprotein of the eye's initial foreign body reaction.
Setting: University of Saarland, Homburg/Saar, Germany.
Methods: Eleven IOL types were tested.
Objective: Modern imaging modalities increase the detection of small (
Curr Opin Urol
September 2007
Purpose Of Review: In flat bladder cancer and carcinoma in situ, and in multifocal papillary cancer, some smaller lesions may be overlooked at cystoscopy. For 10 years fluorescence cystoscopy has been promoted to solve these problems without wider acceptance. New fluorophobes now promise better clinical applicability.
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