Sandrine Anne Zweifel

Prof. Dr. Sandrine Anne Zweifel

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 June 2022 in Cancers
Verified
Journal Article
Open access
PDF file
MSMalgorzata Solnik
Malgorzata Solnik
NPNatalia Paduszyńska
Natalia Paduszyńska
Anna M. Czarnecka, MBAAnna M. Czarnecka, MBA
Anna M. Czarnecka, MBA
KSKamil Synoradzki
Kamil Synoradzki
YYYacoub A Yousef
Yacoub A Yousef
MFMichal Fiedorowicz
Michal Fiedorowicz
Uveal melanoma is the most common primary intraocular malignancy in adults, characterized by an insidious onset and poor prognosis strongly associated with tumor size and the presence of distant metastases, most commonly in the liver. Contrary to most tumor identification, a biopsy followed by a pathological exam is used only in certain cases. Therefore, an early and noninvasive diagnosis is essential to enhance patients’ chances for early treatment. We reviewed imaging modalities currently used in the diagnostics of uveal melanoma, including fundus imaging, ultrasonography (US), optical coherence tomography (OCT), single-photon emission computed tomography (SPECT), fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA), fundus autofluorescence (FAF), as well as positron emission tomography/computed tomography (PET/CT) or magnetic resonance imaging (MRI). The principle of imaging techniques is briefly explained, along with their role in the diagnostic process and a summary of their advantages and limitations. Further, the experimental data and the advancements in imaging modalities are explained. We describe UM imaging innovations, show their current usage and development, and explain the possibilities of utilizing such modalities to diagnose uveal melanoma in the future.

1 April 2021 in Eye
Verified
Journal Article
Open access
PDF file
LKLaurent Kodjikian
Laurent Kodjikian
MPMariacristina Parravano
Mariacristina Parravano
ACAndreas Clemens
Andreas Clemens
RDRosa Dolz-Marco
Rosa Dolz-Marco
FHFrank G. Holz
Frank G. Holz
SZSandrine Anne Zweifel
Sandrine Anne Zweifel
Current guidelines on the management of patients with neovascular age-related macular degeneration (nAMD) lack clear recommendations on the interpretation of fluid as seen on optical coherence tomography (OCT) imaging and the incorporation of this information into an ongoing disease treatment strategy. Our objective was to review current guidelines and scientific evidence on the role of fluid as a biomarker in the management of nAMD, and develop a clinically oriented, practical algorithm for diagnosis and management based on a consensus of expert European retinal specialists. PubMed was searched for articles published since 2006 relating to the role of fluid in nAMD. A total of 654 publications were screened for relevance and 66 publications were included for review. Of these, 14 were treatment guidelines, consensus statements and systematic reviews or meta-analyses, in which OCT was consistently recommended as an important tool in the initial diagnosis and ongoing management of nAMD. However, few guidelines distinguished between types of fluid when providing recommendations. A total of 52 publications reported primary evidence from clinical trials, studies, and chart reviews. Observations from these were sometimes inconsistent, but trends were observed with regard to features reported as being predictive of visual outcomes. Based on these findings, diagnostic recommendations and a treatment algorithm based on a treat-and-extend (T&E) regimen were developed. These provide guidance on the diagnosis of nAMD as well as a simple treatment pathway based on the T&E regimen, with treatment decisions made according to the observations of fluid as a critical biomarker for disease activity.

Verified
Journal Article
Open access
PDF file
AKAgnieszka Kamińska
Agnieszka Kamińska
Giovanni Luca RomanoGiovanni Luca Romano
Giovanni Luca Romano
Robert RejdakRobert Rejdak
Robert Rejdak
SZSandrine Anne Zweifel
Sandrine Anne Zweifel
MFMichal Fiedorowicz
Michal Fiedorowicz
Mario Damiano ToroMario Damiano Toro
Mario Damiano Toro
Glaucoma is a heterogeneous group of chronic neurodegenerative disorders characterized by a relatively selective, progressive damage to the retinal ganglion cells (RGCs) and their axons, which leads to axon loss and visual field alterations. To date, many studies have shown the role of various elements, mainly metals, in maintaining the balance of prooxidative and antioxidative processes, regulation of fluid and ion flow through cell membranes of the ocular tissues. Based on the earlier and current research results, their relationship with the development and progression of glaucoma seems obvious and is increasingly appreciated. In this review, we aimed to summarize the current evidence on the role of trace elements in the pathogenesis and prevention of glaucomatous diseases. Special attention is also paid to the genetic background associated with glaucoma-related abnormalities of physiological processes that regulate or involve the ions of elements considered as trace elements necessary for the functioning of the cells.

ABAnahita Bajka
Anahita Bajka
MWMaximilian Robert Justus Wiest
Maximilian Robert Justus Wiest
THTimothy Hamann
Timothy Hamann
Mario Damiano ToroMario Damiano Toro
Mario Damiano Toro
SZSandrine Anne Zweifel
Sandrine Anne Zweifel
Background: During the first COVID-19 pandemic outbreak, a new triage concept had to be implemented for patients with retinal diseases having a scheduled appointment at the medical retina clinic. In this study, we aimed to assess patients’ confidence in this triage concept and patients’ satisfaction regarding the received treatment during the outbreak. Methods: This retrospective study included all patients with a diagnosed retinal disease, triaged into three priority groups based on their condition’s urgency during lockdown. After restrictions were eased, a subset of previously triaged patients was interviewed to assess their confidence in the triage and their satisfaction regarding the received treatment during the pandemic. Results: In total, 743 patients were triaged during the lockdown. Over 80% received an urgent appointment (priority 1). Among all priority 1 patients, over 84% attended their appointment and 77% received an intravitreal injection (IVI), while 7% cancelled their appointment due to COVID-19. In post-lockdown interviews of 254 patients, 90% trusted the emergency regimen and received treatment. Conclusions: Our triage seemed to be useful in optimizing access to treatment for patients with retinal diseases. An excellent rating of patients’ confidence in the triage and satisfaction regarding the received treatment during the first COVID-19 outbreak could be achieved.

1 November 2024 in JAMA Ophthalmology
Verified
Journal Article
Open access
PDF file
MCMariano Cozzi
Mariano Cozzi
AZAlexander Ziegler
Alexander Ziegler
KFKatrin Fasler
Katrin Fasler
DMDaniel R. Muth
Daniel R. Muth
FBFrank Blaser
Frank Blaser
SZSandrine Anne Zweifel
Sandrine Anne Zweifel
Faricimab, a humanized, biospecific, immunoglobulin G (IgG) monoclonal antibody, has received approval as an intravitreal injection (IVI) from the US Food and Drug Administration for addressing neovascular age-related macular degeneration (AMD), diabetic macular edema (DME), and macular edema secondary to retinal vein occlusion.1-5 This therapeutic molecule is designed to target the vascular endothelial growth factor A (VEGF-A) and the angiopoietin 2 pathways, aiming to enhance vascular stability while mitigating neovascularization and hyperpermeability. Multiple multicenter randomized clinical trials (RCTs) have demonstrated positive visual outcomes, suggesting potential extended intervals between treatments for patients receiving faricimab. The safety profile has been also investigated and compared with aflibercept, 2 mg. Overall, in the registration process, faricimab exhibited an acceptable safety profile and was generally well tolerated.2,3

1 February 2017 in Ophthalmology
Verified
Journal Article
Closed access
SZSandrine Anne Zweifel
Sandrine Anne Zweifel
DMDaniela Mihic-Probst
Daniela Mihic-Probst
CCChristine A. Curcio
Christine A. Curcio
DBDaniel Barthelmes
Daniel Barthelmes
ATAndrea Thielken
Andrea Thielken
CBChristian Böni
Christian Böni