Results 41 to 50 of about 76,706 (299)

Utility of pulse-oximetry screening in newborns with nonductus-dependent cyanotic congenital heart defects: A reason to alarm?

Annals of Pediatric Cardiology, 2022
Objectives : We aimed to compare the performance of pulse-oximetry screening in detecting nonductus-dependent cyanotic congenital heart defects (CCHDs). Methods : In a prospective cross-sectional study, we recorded post ductal saturation of neonates (
Balaji Arvind, Anita Saxena, Sivasubramanian Ramakrishnan   +2 more
doaj   +1 more source

Monte Carlo Analysis of Optical Interactions in Reflectance and Transmittance Finger Photoplethysmography [PDF]

, 2019
Photoplethysmography (PPG) is a non-invasive photometric technique that measures the volume changes in arterial blood. Recent studies have reported limitations in developing and optimising PPG-based sensing technologies due to unavailability of the ...
Anatomy, Bashkatov, Budidha, Gosling, Jacques, Lapeyre, Marks, Moyle, Panayiotis Kyriacou, Rushambwa, Subhasri Chatterjee, Tuchin, Tuchin, Webster   +13 more
core   +1 more source

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, EarlyView.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source

The role of pulse oximetry in neonatal screening for critical and complex congenital heart defects

Alʹmanah Kliničeskoj Mediciny, 2017
Background: Timely diagnosis of complex and critical congenital heart defects in neonates can help to avoid fatal complications of their natural history and to establish correct treatment strategies.
M. V. Tarayan, A. I. Drozdova, E. S. Efremov, N. V. Shkarina, L. V. Malyutina   +4 more
doaj   +1 more source

Assessment of photoplethysmographic signals for the determination of splanchnic oxygen saturation in humans [PDF]

, 2002
The need for a clinically applicable method of detecting splanchnic hypoxia has led to experimental animal studies which indicated the usefulness of intestinal pulse oximetry. Pulse oximetry relies on detection of photoplethysmographic signals.
A. J. Crerar-Gilbert, D. P. Jones, DeNobile, Ferrara, Jury of the Consensus., Kolkman, Kyriacou, Kyriacou, MacDonald, Ouriel, P. A. Kyriacou, Pearce, R. M. Langford   +12 more
core   +1 more source

Intravenous lanadelumab for the treatment of moderately ill COVID‐19 patients

British Journal of Clinical Pharmacology, EarlyView.
Aims Kallikrein‐kinin system (KKS) dysregulation is hypothesized to play a pathogenetic role in COVID‐19‐associated pulmonary oedema. To investigate the efficacy and safety of intravenous lanadelumab, a monoclonal antibody that inhibits plasma kallikrein, in COVID‐19, we conducted a phase 2, open‐label, randomized‐controlled, proof‐of‐concept ...
Job J. Engel, Christine van Linge, W. Joost Wiersinga, Ilse J. E. Kouijzer, Quirijn de Mast, Robert‐Jan Hassing, Danique J. H. Huijbens, Helen L. Leavis, Roger Schutgens, Coen Maas, Kit C. B. Roes, Frank L. van de Veerdonk, Roger Brüggemann   +12 more
wiley   +1 more source

Multimodal optical diagnostics of the microhaemodynamics in upper and lower limbs [PDF]

, 2019
The introduction of optical non-invasive diagnostic methods into clinical practice can substantially advance in the detection of early microcirculatory disorders in patients with different diseases.
Dremin, Viktor V., Dunaev, Andrey V., Goltsov, Alexey, Makovik, Irina N., Rafailov, Edik U., Sokolovski, Sergei G., Zherebtsov, Evgeny A., Zherebtsova, Angelina I.   +7 more
core   +4 more sources

Organic Photodetectors and Sensors for Low‐Light and Infrared Applications

Electron, EarlyView.
This mini review highlights recent advances in organic photodetectors and sensors for low‐light and infrared applications, emphasizing molecular design, device architectures, and interface engineering that improve charge transport, detectivity, speed, and spectral selectivity.
Swarup Biswas, Hyeok Kim
wiley   +1 more source

Diagnostic dilemma: Low oxygen saturation during cardiac surgery

Annals of Cardiac Anaesthesia, 2017
We report a case of rheumatic heart disease with severe mitral stenosis having cyanosis and low oxygen saturation on pulse oximetry. The findings of clinical examination and low values on pulse oximetry were inconsistent with the findings of normal ...
Suruchi Ladha, Shivani Aggarwal, Usha Kiran, Arindam Choudhary, Poonam Malhotra Kapoor, Ujjwal Kumar Choudhary   +5 more
doaj   +1 more source

The accuracy of pulse oximetry in measuring oxygen saturation by levels of skin pigmentation: a systematic review and meta-analysis

BMC Medicine, 2022
Background During the COVID-19 pandemic, there have been concerns regarding potential bias in pulse oximetry measurements for people with high levels of skin pigmentation.
Chunhu Shi, Mark Goodall, Jo Dumville, James Hill, Gill Norman, Oliver Hamer, Andrew Clegg, Caroline Leigh Watkins, George Georgiou, Alexander Hodkinson, Catherine Elizabeth Lightbody, Paul Dark, Nicky Cullum   +12 more
doaj   +1 more source