Stephen David Ryder

Prof. Stephen David Ryder

orcid

Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

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

Representative Publications

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1 March 2017 in The Lancet Gastroenterology & Hepatology
Verified
Journal Article
Closed access
SBSarah Blach
Sarah Blach
SZStefan Zeuzem
Stefan Zeuzem
MMMichael Manns
Michael Manns
IAIbrahim Altraif
Ibrahim Altraif
ADAnn-Sofi Duberg
Ann-Sofi Duberg
HRHomie Razavi
Homie Razavi

23 April 2015 in New England Journal of Medicine
Verified
Journal Article
Open access
PDF file
MTMark R. Thursz
Mark R. Thursz
PRPaul Richardson
Paul Richardson
MAMichael Allison
Michael Allison
AAAndrew Austin
Andrew Austin
MBMegan Bowers
Megan Bowers
EFEwan H. Forrest
Ewan H. Forrest
Alcoholic hepatitis is a clinical syndrome characterized by jaundice and liver impairment that occurs in patients with a history of heavy and prolonged alcohol use. The short-term mortality among patients with severe disease exceeds 30%. Prednisolone and pentoxifylline are both recommended for the treatment of severe alcoholic hepatitis, but uncertainty about their benefit persists.

1 November 2014 in The Lancet
Verified
Journal Article
Closed access
RWRoger Williams
Roger Williams
RARichard Aspinall
Richard Aspinall
MBMark Bellis
Mark Bellis
GCGinette Camps-Walsh
Ginette Camps-Walsh
MCMatthew Cramp
Matthew Cramp
TSTom Smith
Tom Smith

8 April 2014 in Journal of Viral Hepatitis
Verified
Journal Article
Open access
PDF file
HRHomie Razavi
Homie Razavi
IWImam Waked
Imam Waked
CSC. Sarrazin
C. Sarrazin
RMR. P. Myers
R. P. Myers
RIR. Idilman
R. Idilman
CEC. Estes
C. Estes
Summary: The disease burden of hepatitis C virus (HCV) is expected to increase as the infected population ages. A modelling approach was used to estimate the total number of viremic infections, diagnosed, treated and new infections in 2013. In addition, the model was used to estimate the change in the total number of HCV infections, the disease progression and mortality in 2013–2030. Finally, expert panel consensus was used to capture current treatment practices in each country. Using today's treatment paradigm, the total number of HCV infections is projected to decline or remain flat in all countries studied. However, in the same time period, the number of individuals with late‐stage liver disease is projected to increase. This study concluded that the current treatment rate and efficacy are not sufficient to manage the disease burden of HCV. Thus, alternative strategies are required to keep the number of HCV individuals with advanced liver disease and liver‐related deaths from increasing.

1 May 2021 in Journal of Hepatology
Verified
Journal Article
Open access
JTJonel Trebicka
Jonel Trebicka
JFJavier Fernandez
Javier Fernandez
MPMária Papp
Mária Papp
PCPaolo Caraceni
Paolo Caraceni
WLWim Laleman
Wim Laleman
OÖOsman Cavit Özdogan
Osman Cavit Özdogan
Acute decompensation (AD) of cirrhosis may present without acute-on-chronic liver failure (ACLF) (AD-No ACLF), or with ACLF (AD-ACLF), defined by organ failure(s). Herein, we aimed to analyze and characterize the precipitants leading to both of these AD phenotypes. The multicenter, prospective, observational PREDICT study (NCT03056612) included 1,273 non-electively hospitalized patients with AD (No ACLF = 1,071; ACLF = 202). Medical history, clinical data and laboratory data were collected at enrolment and during 90-day follow-up, with particular attention given to the following characteristics of precipitants: induction of organ dysfunction or failure, systemic inflammation, chronology, intensity, and relationship to outcome. Among various clinical events, 4 distinct events were precipitants consistently related to AD: proven bacterial infections, severe alcoholic hepatitis, gastrointestinal bleeding with shock and toxic encephalopathy. Among patients with precipitants in the AD-No ACLF cohort and the AD-ACLF cohort (38% and 71%, respectively), almost all (96% and 97%, respectively) showed proven bacterial infection and severe alcoholic hepatitis, either alone or in combination with other events. Survival was similar in patients with proven bacterial infections or severe alcoholic hepatitis in both AD phenotypes. The number of precipitants was associated with significantly increased 90-day mortality and was paralleled by increasing levels of surrogates for systemic inflammation. Importantly, adequate first-line antibiotic treatment of proven bacterial infections was associated with a lower ACLF development rate and lower 90-day mortality. This study identified precipitants that are significantly associated with a distinct clinical course and prognosis in patients with AD. Specific preventive and therapeutic strategies targeting these events may improve outcomes in patients with decompensated cirrhosis. Acute decompensation (AD) of cirrhosis is characterized by a rapid deterioration in patient health. Herein, we aimed to analyze the precipitating events that cause AD in patients with cirrhosis. Proven bacterial infections and severe alcoholic hepatitis, either alone or in combination, accounted for almost all (96-97%) cases of AD and acute-on-chronic liver failure. Whilst the type of precipitant was not associated with mortality, the number of precipitant(s) was. This study identified precipitants that are significantly associated with a distinct clinical course and prognosis of patients with AD. Specific preventive and therapeutic strategies targeting these events may improve patient outcomes.

8 April 2014 in Journal of Viral Hepatitis
Verified
Journal Article
Open access
PDF file
PBP. Bruggmann
P. Bruggmann
TBT. Berg
T. Berg
AØA. L. H. Øvrehus
A. L. H. Øvrehus
CMC. Moreno
C. Moreno
CMC. E. Brandão Mello
C. E. Brandão Mello
SHS. J. Hindman
S. J. Hindman
Summary: Chronic infection with hepatitis C virus (HCV) is a leading indicator for liver disease. New treatment options are becoming available, and there is a need to characterize the epidemiology and disease burden of HCV. Data for prevalence, viremia, genotype, diagnosis and treatment were obtained through literature searches and expert consensus for 16 countries. For some countries, data from centralized registries were used to estimate diagnosis and treatment rates. Data for the number of liver transplants and the proportion attributable to HCV were obtained from centralized databases. Viremic prevalence estimates varied widely between countries, ranging from 0.3% in Austria, England and Germany to 8.5% in Egypt. The largest viremic populations were in Egypt, with 6 358 000 cases in 2008 and Brazil with 2 106 000 cases in 2007. The age distribution of cases differed between countries. In most countries, prevalence rates were higher among males, reflecting higher rates of injection drug use. Diagnosis, treatment and transplant levels also differed considerably between countries. Reliable estimates characterizing HCV‐infected populations are critical for addressing HCV‐related morbidity and mortality. There is a need to quantify the burden of chronic HCV infection at the national level.