Objectives: To investigate the efficacy of gravitational displacement following vitrectomy for the patients with submacular haemorrhage (SMH) secondary to age-related macular degeneration (AMD).

Methods: Retrospective, interventional series of nine consecutive AMD patients with SMH. All patients underwent pars plana vitrectomy (PPV) combined with subretinal tissue plasminogen activator (t-PA) and intravitreal anti-vascular endothelial growth factor (anti-VEGF) injection without any tamponade. The patients were positioned according to the location and distribution of SMH postoperatively in order to provide the maximum gravitational force effect to displace. Outcome measures were the change in visual acuity, the displacement in SMH, and the occurrence of per- and postoperative complications.

Results: Complete displacement of haemorrhage occurred in all patients postoperatively. The mean preoperative and postoperative best-corrected visual acuity (BCVA) at the last visit were 2.46 and 1.7 logMAR, respectively, after a mean follow-up of 10.4 months (Range: 3-18 months) (p = 0.045). The mean duration of haemorrhage was 15.3 days (range: 3-40 days). The recurrence of SMH was observed in two (22%) patients and there were no other postoperative complications.

Conclusion: Gravitational displacement following PPV combined with subretinal t-PA and intravitreal anti-VEGF injection can be considered as an effective surgical intervention in selected AMD patients with SMH.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7253466PMC
http://dx.doi.org/10.1038/s41433-019-0720-8DOI Listing

Publication Analysis

Top Keywords

gravitational displacement
12
submacular haemorrhage
8
patients
8
age-related macular
8
amd patients
8
patients smh
8
ppv combined
8
combined subretinal
8
t-pa intravitreal
8
anti-vegf injection
8

Similar Publications

Quantifying the Volume of Residual Air in Commercial Intravenous Fluids and Assessing the Stability of Airless Intravenous Fluid Containers.

Mil Med

December 2024

Clinical and Operational Space Medicine Innovation Consortium (COSMIC), 59th Medical Wing, Lackland Air Force Base, TX 78236, USA.

Introduction: Commercial off-the-shelf (COTS) intravenous fluid (IVF) containers contain residual air, introducing the risk of venous air embolism (VAE). Venous air embolism occurs when air displaces blood flow in vasculature. The danger from residual air is often negligible in terrestrial settings, where gravitational forces generate buoyancy, pushing residual air to the top of the IVF container.

View Article and Find Full Text PDF

Experimental dataset of masonry prisms with hollow concrete blocks.

Data Brief

April 2024

Universidad Autónoma de Nuevo León (UANL), Facultad de Ingeniería Civil (FIC), Departamento de Estructuras, Av. Universidad, s/n CP. 66455, San Nicolás de los Garza, Nuevo León, México.

The uniaxial compressive strength is a main parameter to be considered in design of masonry structures, particularly due to gravitational loads. This dataset collection comprises test on various masonry prisms made of hollow concrete blocks. These prisms are divided into three groups: prisms consisting of 2, 3, and 4 courses, respectively.

View Article and Find Full Text PDF

Tilt-to-length (TTL) coupling, caused by the jitter of test masses or satellites, is a major noise source in space-based gravitational wave detection. Calibrating and suppressing TTL coupling noise at the sub-nanometer level is essential. A key challenge in current ground-based TTL coupling testing is the residual translational movement of the tilt actuator.

View Article and Find Full Text PDF

A rotational ellipsoid model for solid Earth tide with high precision.

Sci Rep

November 2024

National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing, 210093, China.

Solid Earth tide represents the response of solid Earth to the lunar (solar) gravitational force. The yielding solid Earth due to the force has been thought to be a prolate ellipsoid since the time of Lord Kelvin, yet the ellipsoid's geometry such as major semi-axis's length, minor semi-axis's length, and flattening remains unresolved. Additionally, the tidal displacement of reference point is conventionally resolved through a combination of expanded potential equations and given Earth model.

View Article and Find Full Text PDF
Article Synopsis
  • Conventional MRI isn't compatible with ECMO systems, but ultra-low-field portable MRI (ULF-pMRI) might be a safer alternative, though its safety with ECMO is uncertain.
  • The study tested various ECMO cannulas, both in lab settings and on pigs, to evaluate the impact of ULF-pMRI on cannula displacement and heating, as well as pump functionality.
  • Results showed that ULF-pMRI poses minimal risk to ECMO equipment, maintaining stable conditions for both the cannulas and pumps, suggesting it's a viable option for brain imaging in patients on ECMO.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!