Ahmed Shaman

Dr. Ahmed Shaman


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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22 February 2022 in Circulation
Verified
Journal Article
Open access
PDF file
ASAhmed Shaman
Ahmed Shaman
SBStephen C. Bain
Stephen C. Bain
GBGeorge Bakris
George Bakris
JBJohn B. Buse
John B. Buse
TIThomas Idorn
Thomas Idorn
VPVlado Perkovic
Vlado Perkovic
Background: We assessed the effect of once-weekly semaglutide and once-daily liraglutide on kidney outcomes in type 2 diabetes. Methods: Pooled (n=12 637) and by-trial data from SUSTAIN 6 (Trial to Evaluate Cardiovascular and Other Long-Term Outcomes With Semaglutide in Subjects With Type 2 Diabetes; n=3297) and LEADER (Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results; n=9340) were assessed for albuminuria change, annual slope of estimated glomerular filtration rate (eGFR) change, and time to persistent eGFR reduction (30%, 40%, 50%, and 57%) from baseline. Results: The median follow-up durations were 2.1 years for SUSTAIN 6 and 3.8 years for LEADER. In the pooled analysis, semaglutide/liraglutide lowered albuminuria from baseline to 2 years after randomization by 24% versus placebo (95% CI, 20%–27%; P <0.001). Significant reductions were also observed in by-trial data analyses ( P <0.001 for all), the largest being with semaglutide 1.0 mg (33% [95% CI, 24%–40%]; P <0.001) at 2 years. With semaglutide 1.0 mg and liraglutide, eGFR slope decline was significantly slowed by 0.87 and 0.26 mL/min/1.73 m 2 /y ( P <0.0001 and P <0.001), respectively, versus placebo. Effects appeared larger in patients with baseline eGFR <60 versus ≥60 mL/min/1.73 m 2 ( P interaction =0.06 and 0.008 for semaglutide 1.0 mg and liraglutide, respectively). Semaglutide/liraglutide significantly lowered risk of persistent 40% and 50% eGFR reductions versus placebo (hazard ratio [HR], 0.86 [95% CI, 0.75–0.99]; P =0.039 and HR, 0.80 [95% CI, 0.66–0.97]; P =0.023, respectively). Similar, nonsignificant, directional results were observed for 30% and 57% eGFR reductions (HR, 0.92 [95% CI, 0.84–1.02]; P =0.10 and HR, 0.89 [95% CI, 0.69–1.13]; P =0.34). In patients with baseline eGFR 30 to <60 mL/min/1.73 m 2 , the likelihood of persistent reduction for all thresholds was increased, ranging from HR 0.71 for 30% reduction (95% CI, 0.59–0.85; P =0.0003, P interaction =0.017) to 0.54 for 57% reduction (95% CI, 0.36–0.81; P =0.003, P interaction =0.035). Conclusions: In patients with type 2 diabetes, semaglutide/liraglutide offered kidney-protective effects, which appeared more pronounced in patients with preexisting chronic kidney disease.

17 October 2014 in Journal of the American Medical Informatics Association
Verified
Journal Article
Open access
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NBNasser F BinDhim
Nasser F BinDhim
ASAhmed Shaman
Ahmed Shaman
LTLyndal Trevena
Lyndal Trevena
MBMada H Basyouni
Mada H Basyouni
Lisa PontLisa Pont
Lisa Pont
TATariq M Alhawassi
Tariq M Alhawassi
Background and objective Smartphone applications (apps) have the potential to be valuable self-help interventions for depression screening. However, information about their feasibility and effectiveness and the characteristics of app users is limited. The aim of this study is to explore the uptake, utilization, and characteristics of voluntary users of an app for depression screening. Methods This was a cross-sectional study of a free depression screening smartphone app that contains the demographics, patient health questionnaire (PHQ-9), brief anxiety test, personalized recommendation based on the participant's results, and links to depression-relevant websites. The free app was released globally via Apple's App Store. Participants aged 18 and older downloaded the study app and were recruited passively between September 2012 and January 2013. Findings 8241 participants from 66 countries had downloaded the app, with a response rate of 73.9%. While one quarter of the participants had a previous diagnosis of depression, the prevalence of participants with a higher risk of depression was 82.5% and 66.8% at PHQ-9 cut-off 11 and cut-off 15, respectively. Many of the participants had one or more physical comorbid conditions and suicidal ideation. The cut-off 11 (OR: 1.4; 95% CI 1.2 to 1.6), previous depression diagnosis (OR: 1.3; 95% CI1.2 to 1.5), and postgraduate educational level (OR: 1.2; 95% CI 1.0 to 1.5) were associated with completing the PHQ-9 questionnaire more than once. Conclusions Smartphone apps can be used to deliver a screening tool for depression across a large number of countries. Apps have the potential to play a significant role in disease screening, self-management, monitoring, and health education, particularly among younger adults.

1 July 2016 in Saudi Pharmaceutical Journal
Verified
Journal Article
Open access
ASAhmed Shaman
Ahmed Shaman
SKStefan R. Kowalski
Stefan R. Kowalski
Hyperphosphatemia in chronic kidney disease (CKD) patients is a potentially life altering condition that can lead to cardiovascular calcification, metabolic bone disease (renal osteodystrophy) and the development of secondary hyperparathyroidism (SHPT). It is also associated with increased prevalence of cardiovascular diseases and mortality rates. To effectively manage hyperphosphatemia in CKD patients it is important to not only consider pharmacological and nonpharmacological treatment options but also to understand the underlying physiologic pathways involved in phosphorus homoeostasis. This review will therefore provide both a background into phosphorus homoeostasis and the management of hyperphosphatemia in CKD patients. In addition, it will cover some of the most important reasons for failure to control hyperphosphatemia with emphasis on the effect of the gastric pH on phosphate binders efficiency.

27 June 2016 in Journal of Medical Internet Research
Verified
Journal Article
Open access
NBNasser F BinDhim
Nasser F BinDhim
EAEman Alanazi
Eman Alanazi
HAHisham Aljadhey
Hisham Aljadhey
MBMada H Basyouni
Mada H Basyouni
SKStefan R Kowalski
Stefan R Kowalski
TATariq Alhawassi
Tariq Alhawassi
Journal of Medical Internet Research - International Scientific Journal for Medical Research, Information and Communication on the Internet

8 April 2019 in BMC Cardiovascular Disorders
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Journal Article
Open access
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YLYONG LIU
YONG LIU
DHDaqing Hong
Daqing Hong
AWAmanda Ying Wang
Amanda Ying Wang
RGRui Guo
Rui Guo
BSBrendan Smyth
Brendan Smyth
MGMartin Gallagher
Martin Gallagher
The role of intravenous hydration at the time of primary percutaneous intervention (PCI) for ST-segment elevation myocardial infarction (STEMI) remains unclear. Guidelines are vague, supported by low level evidence, and hydration is used less often than other clinical settings.To perform a systematic review and meta-analysis of all randomized controlled trials assessing intravenous hydration compared with non-hydration for prevention of contrast induced nephropathy (CIN) and In-hospital mortality in patients with STEMI undergoing primary PCI. Medline, EMBASE and the Cochrane Register were searched to September 2018. Included studies reported the incidence of CIN, In-hospital mortality, requirement for dialysis and heart failure. Relative risks with 95% confidence intervals (CIs) for individual trials were pooled using a random effects model. Three moderate quality trials were identified including 1074 patients. Overall, compared with no hydration, intravenous hydration significantly reduced the incidence of CIN by 42% (RR 0.58; 95% CI: 0.45 to 0.74, p < 0.001). The estimated effects upon all-cause mortality (RR 0.56; 95% CI: 0.30 to 1.02, p = 0.057) and the requirement for dialysis (RR 0.52, 95% CI 0.14–1.88, p = 0.462) were not statistically significant. The outcome of heart failure was not consistently reported. Intravenous hydration likely reduces the incidence of CIN in patients with STEMI undergoing primary PCI. However, for key clinical outcomes such as mortality, heart failure and dialysis the effect estimates were imprecise. Further high quality studies are needed to clarify the appropriate volume of fluid and effects on outcomes.

4 April 2012 in Nephrology
Verified
Journal Article
Closed access
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MCMatthew J Cervelli
Matthew J Cervelli
ASAhmed Shaman
Ahmed Shaman
AMAnthony Meade
Anthony Meade
RCRobert Carroll
Robert Carroll
SMStephen P Mcdonald
Stephen P Mcdonald