Mohammad Omar Butt

Dr. Mohammad Omar Butt

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Research Focus & Metrics

Academic Career Length

1Year (2026-Present)

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

Representative Publications

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FAFaizan Ahmed
Faizan Ahmed
SKSaifullah Khan
Saifullah Khan
MSMadeeha Shafqat
Madeeha Shafqat
NGNajam Gohar
Najam Gohar
MHMuhammad Hassan
Muhammad Hassan
FAFawaz Alenezi
Fawaz Alenezi
Background: Coronary artery disease (CAD) and heart failure with preserved ejection fraction (HFpEF) are major causes of morbidity and mortality. Systemic inflammation contributes to both, suggesting potential benefit from colchicine, though data in CAD-HFpEF are limited. Methods: We conducted a real-world study using the TriNetX Research Network, identifying 480,434 adults with CAD and HFpEF. Patients were categorized as colchicine users (n = 30,254) or non-users (n = 450,180). One-to-one propensity score matching yielded 28,941 patients per group. The primary outcome was a composite of acute myocardial infarction, stroke, all-cause mortality, and acute heart failure. Secondary outcomes included individual components, hospitalizations, atrial fibrillation, and gastrointestinal events, assessed at 1- and 3-year follow-up. Results: At 1 year, the primary outcome occurred in 16.9% of the colchicine group versus 19.8% of non-users (HR: 0.86, 95% CI: 0.81–0.91; p < 0.001). All-cause mortality was 11.4% versus 14.5% (HR: 0.77, 95% CI: 0.73–0.80; p < 0.001). At 3 years, the primary outcome occurred in 34.2% versus 39.7% (HR: 0.88, 95% CI: 0.85–0.92; p < 0.001), with acute heart failure slightly higher in the colchicine group (27.5% vs. 26.5%; HR: 1.04, 95% CI: 1.01–1.08; p = 0.009). Stroke was modestly reduced (HR: 0.93, 95% CI: 0.88–0.99; p = 0.014). No significant differences were seen in all-cause hospitalization, atrial fibrillation, or gastrointestinal events. Conclusions: In patients with CAD and HFpEF, colchicine was associated with lower short- and medium-term risk of composite cardiovascular events and mortality, with modest attenuation over time, suggesting early time-dependent association rather than sustained structural effects. Prospective randomized trials are warranted.

17 April 2026 in BMC Cardiovascular Disorders
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Journal Article
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FAFaizan Ahmed
Faizan Ahmed
MAMuhammad Abdullah
Muhammad Abdullah
HTHaris Bin Tahir
Haris Bin Tahir
BQBilal Qammar
Bilal Qammar
MHMuhammad Shees Hunain
Muhammad Shees Hunain
FAFawaz Alenezi
Fawaz Alenezi
Background: Cardiogenic shock (CS) and chronic ischemic heart disease (CIHD) remain major contributors to cardiovascular mortality in the United States. Although mortality related to ischemic disease declined in the early 2000s, recent trends suggest a resurgence. Methods: This population-based study utilized the Centers for Disease Control and Prevention’s Wide-Ranging OnLine Data for Epidemiologic Research (CDC WONDER) database from 1999 to 2023. Deaths were identified using ICD-10 codes R57.0 (CS) and I25 (CIHD). Adults aged ≥ 45 years were included. Crude mortality rates (CMRs) and age-adjusted mortality rates (AAMRs) were calculated, with temporal changes assessed using Joinpoint regression to estimate Annual Percent Change (APC) and Average Annual Percent Change (AAPC). Results: Between 1999 and 2023, deaths attributed to CS and CIHD accounted for 78,903 cases among adults ≥ 45 years. Overall AAMR ranged from 35.88 per million in 1999 to 37.44 per million in 2023, with a downward trend from 1999 to 2012 followed by an upward trend thereafter. Males (51,080 deaths) exhibited rising mortality (AAPC: +0.50, p < 0.001), while females (27,823 deaths) showed a decline (AAPC: − 0.91, p < 0.0004). Non-Hispanic Black adults demonstrated the steepest increase (AAPC: +1.85, p < 0.001). The burden was greatest in adults ≥ 65 years, but the 45–64 group showed the fastest rise (AAPC: +1.67, p < 0.001). Conclusion: Mortality from cardiogenic shock and chronic ischemic heart disease among U.S. adults ≥ 45 years declined initially but reversed after 2012. Rising mortality in middle-aged adults, persistent racial disparities, and geographic inequities highlight urgent gaps in prevention and acute care.

17 June 2026 in Biomedicines
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Journal Article
Open access
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FAFaizan Ahmed
Faizan Ahmed
SKSaifullah Khan
Saifullah Khan
NGNajam Gohar
Najam Gohar
MHMuhammad Hassan
Muhammad Hassan
MSMadeeha Shafqat
Madeeha Shafqat
FAFawaz Alenezi
Fawaz Alenezi
Background: Heart failure patients are frequently prescribed SGLT2 inhibitors, but the incremental real-world benefit of adding GLP-1 receptor agonists is uncertain. Methods: A retrospective propensity-matched cohort study was conducted using the TriNetX Global Collaborative Network (171 healthcare organizations). Adults aged ≥18 years with incident heart failure who initiated either dual SGLT2 inhibitor and GLP-1 receptor agonist therapy or SGLT2 inhibitor monotherapy within 1 month of the first heart failure diagnosis were compared. Outcomes over 365 days included all-cause mortality, all-cause hospitalization, acute myocardial infarction, atrial fibrillation/flutter, acute kidney failure, pulmonary edema, new-onset diuretic use, urinary tract infection, retinopathy, and laboratory hypoglycemia (glucose ≤ 70 mg/dL). Cox proportional hazards models were used; the proportional hazards assumption was formally tested. Bonferroni and Benjamini–Hochberg adjustments were applied for multiple comparisons. E-values quantified robustness to unmeasured confounding. Appendicitis was used as a negative control outcome. Results: After 1:1 propensity score matching, 3421 patients were included in each cohort. Cohorts were well-balanced (all standardized mean differences < 0.10). Over 365 days of follow-up, no significant differences were observed between dual therapy and monotherapy in all-cause mortality (HR 0.92, 95% CI 0.77–1.09), all-cause hospitalization (HR 1.16, 95% CI 0.96–1.40), acute myocardial infarction (HR 1.20, 95% CI 0.92–1.55), atrial fibrillation/flutter (HR 1.05, 95% CI 0.85–1.30), acute kidney failure (HR 1.05, 95% CI 0.89–1.26), new-onset diuretic use (HR 0.92, 95% CI 0.78–1.09), or urinary tract infection (HR 1.16, 95% CI 0.90–1.48). Dual therapy was associated with a significant increase in retinopathy (HR 2.66, 95% CI 1.81–3.93; Bonferroni p = 0.001; E-value 4.77, lower CI bound 3.01), and a modest increase in laboratory hypoglycemia (HR 1.22, 95% CI 1.04–1.44) and pulmonary edema (HR 1.35, 95% CI 1.06–1.70), both of which survived FDR but not Bonferroni adjustment. Prespecified subgroup analyses showed lower mortality with dual therapy in patients aged 18–64 (HR 0.64, 95% CI 0.43–0.93) and in women (HR 0.60, 95% CI 0.45–0.81). The negative control outcome (appendicitis) was non-significant. Conclusions: In a propensity-matched real-world cohort with a conservative cohort definition, dual SGLT2 inhibitor and GLP-1 receptor agonist therapy was not associated with significant differences in mortality or major cardiovascular outcomes compared with SGLT2 inhibitor monotherapy. Subgroup signals favoring dual therapy in younger and female patients, alongside safety signals for retinopathy and laboratory hypoglycemia, are hypothesis-generating and should be confirmed in prospective trials.

Verified
Journal Article
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FAFaizan Ahmed
Faizan Ahmed
NGNajam Gohar
Najam Gohar
MSMadeeha Shafqat
Madeeha Shafqat
DADaniel Aziz
Daniel Aziz
MBMohammad Omar Butt
Mohammad Omar Butt
EZEran S. Zacks
Eran S. Zacks
Background: Atrial fibrillation (AF) and heart failure with preserved ejection fraction (HFpEF) usually coexist and are related to increased morbidity and mortality. Cardiovascular benefits have been demonstrated by drugs such as sodium-glucose cotransporter-2 inhibitors (SGLT2i) and GLP-1 receptor agonists including the dual GIP/GLP-1 receptor agonist tirzepatide (collectively, incretin-based therapies); however, their relative effectiveness in patients with concomitant AF and HFpEF remains undefined. Methods: We conducted a retrospective, propensity score-matched cohort study utilizing the TriNetX Global Collaborative Network. Adults with AF or atrial flutter with a diagnosis of HFpEF who initiated incretin-based therapies (GLP-1 receptor agonists or dual GLP-1/GIP receptor agonists) or SGLT2i were included; index medication was required to be initiated within 30 days of a qualifying AF/HFpEF diagnosis. 1:1 matching was performed based on baseline medications, demographics, and comorbidities. Co-primary outcomes were all-cause mortality, inpatient visits, and emergency department (ED) visits at 1 year. Secondary outcomes included myocardial infarction, ischemic stroke, acute kidney injury, transient ischemic attack, major adverse cardiovascular events (MACE; all-cause mortality/MI/stroke composite), and AF-related procedures. Agent-specific subgroup analyses were performed for semaglutide and tirzepatide separately. Sensitivity analyses were conducted at 6 months and 2 years. Results: 7624 patients were included in each cohort after matching (mean age: 70.8 years; 52% women). At 1 year, incretin-based therapy was associated with lower all-cause mortality (5.3% vs. 7.3%, HR 0.721, 95% CI 0.634–0.820; p < 0.001), fewer inpatient visits (30.0% vs. 37.4%, HR 0.743, 95% CI 0.702–0.787; p < 0.001), and no statistically significant difference in ED visits (27.0% vs. 28.0%; HR 0.946, 95% CI 0.888–1.007; p = 0.081) compared with SGLT2i. Incretin-based therapy was also associated with lower risk of MACE (HR 0.709), acute kidney injury (HR 0.751), myocardial infarction (HR 0.583), catheter ablation (HR 0.685), and electrical cardioversion (HR 0.472). No significant differences were observed in ischemic stroke or transient ischemic attack. These findings were broadly consistent at 6-month and 2-year follow-up, and directionally consistent in agent-specific subgroup analyses of semaglutide and tirzepatide. Conclusions: In this large propensity-matched cohort of patients with AF and HFpEF, initiation of incretin-based therapy (GLP-1 receptor agonists or dual GLP-1/GIP receptor agonists) was associated with lower all-cause mortality, fewer inpatient visits, and reduced cardiovascular events compared with SGLT2i. These findings, while subject to observational limitations, suggest potential benefits of incretin-based therapy in this high-risk population and support the need for prospective comparative trials.

28 October 2026 in Pacing and Clinical Electrophysiology
Verified
Journal Article
Closed access
ZBZubair Bashir
Zubair Bashir
MRMuhammad Abdul Rehman
Muhammad Abdul Rehman
MHMohammad Hamza
Mohammad Hamza
MYMichelle Yang
Michelle Yang
MBMohammad Omar Butt
Mohammad Omar Butt
SBSyed Bukhari
Syed Bukhari

14 May 2026 in Biomedicines
Verified
Journal Article
Open access
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FAFaizan Ahmed
Faizan Ahmed
SKSaifullah Khan
Saifullah Khan
NGNajam Gohar
Najam Gohar
FKFenilkumar Kotadiya
Fenilkumar Kotadiya
MHMuhammad Hassan
Muhammad Hassan
FAFawaz Alenezi
Fawaz Alenezi
Background: Finerenone and sodium–glucose cotransporter-2 inhibitors provide cardiovascular and renal benefits in patients with chronic kidney disease (CKD) and heart failure (HF), but real-world comparative evidence is limited. Methods: This retrospective study used the TriNetX database. Adults ≥ 40 years with CKD stages 1–5 and HF [LVEF > 40%; excluding end-stage renal disease (ESRD) or dialysis] receiving finerenone were compared with those on SGLT2 inhibitors. Propensity score matching (1:1) yielded 333 patients per cohort. Kaplan–Meier and Cox models estimated hazard ratios (HRs) with 95% confidence intervals. Results: After matching, baseline characteristics were reasonably balanced, with some residual imbalance remaining. All-cause mortality was similar between finerenone and SGLT2 inhibitors at 6 months (HR 0.98; 95% CI 0.50–1.90) and 1 year (HR 0.93; 95% CI 0.53–1.66). All-cause hospitalization or ER visits were also comparable at 6 months (HR 1.07; 95% CI 0.84–1.36) and 1 year (HR 1.04; 95% CI 0.83–1.29). Finerenone was associated with a modest, borderline reduction in HF hospitalization at 1 year, without consistent effects across timepoints or a mortality benefit; thus, this finding is hypothesis-generating (HR 0.81; 95% CI 0.66–0.99). Safety outcomes were similar between groups. Conclusions: In this real-world analysis, finerenone was associated with similar all-cause mortality, overall hospitalization, and renal safety outcomes compared with SGLT2 inhibitors, with a modest reduction in HF hospitalization at 1 year that should be interpreted cautiously given the exploratory nature of the study. These findings are hypothesis-generating and underscore the need for prospective head-to-head trials to better define optimal therapy sequencing in patients with HFpEF and CKD.