Andrew Keaveny

Jun 25, 2024 | onlinelibrary.wiley.com | Tarek Hassanein |Andrew Keaveny |Parvez Mantry |Alastair Smith

We appreciate the editorial comments by Minciuna and Stefanescu1 regarding the key findings of our study.2 As highlighted by them, unlike elastography and other biomarkers which are surrogates for staging fibrosis, the HepQuant SHUNT and DuO tests uniquely quantify functional hepatic mass, hepatic perfusion and portal-systemic shunting. The test is based on the liver-specific uptake of cholate.

May 22, 2024 | onlinelibrary.wiley.com | Tarek Hassanein |Andrew Keaveny |Parvez Mantry |Alastair Smith

Background The quantitative HepQuant SHUNT test of liver function and physiology generates a disease severity index (DSI) that correlates with risk for clinical complications, such as large oesophageal varices (LEVs). A derivative test, HepQuant DuO, generates an equivalent DSI and simplifies testing by requiring only oral administration of the test solution and two blood samples at 20 and 60 min.

Sep 11, 2023 | blog.padi.com | Andrew Keaveny

Anyone who has ever been scuba diving or has a curiosity about the world beneath the surface knows how special an experience with sharks and rays can be. Although we all want to have a memorable time with one of these creatures, not everyone knows the best protocols for when they actually see a shark or ray underwater. However, diving and snorkeling using the best practices for interactions with sharks and rays is vital. It’s the best way to protect both yourself and the animals.

Jul 29, 2023 | blog.padi.com | Andrew Keaveny

Have you ever wondered how much of the ocean has been explored? The answer to this may dazzle you. Although humans have been around for nearly 200,000 years, we’ve only just scraped the surface of underwater exploration. With numbers varying slightly depending on which agency’s data you’re looking at, we’ve chartered and mapped roughly 20% of the ocean and have only physically seen or been to 5%.

May 4, 2023 | blog.padi.com | Andrew Keaveny

Have you ever wondered what is in a scuba tank? While many assume that divers carry 100% oxygen to survive underwater, the reality is quite different. In this article, we’ll explore the type of gas found in scuba tanks (cylinders) and how it affects a scuba diver. We’ll also examine the concerns related to breathing air at high partial pressures (i.e. really deep) and how dive computers and special dive tables help divers reduce risk during their underwater adventures.