Citations

Clear

108 citation(s) found for "Singh, Siddharth".

Correction to: Medical Therapies for Prevention and Treatment of Inflammatory Pouch Disorders-A Systematic Review and Meta-Analysis
Syal, Gaurav , Raffals, Laura E. , Kazzi, Elie S. Al , Haydek, John P. , Singh, Siddharth , Haydek, John , Barnes, Edward L. , Agrawal, Manasi

Mayo Clinic

American Journal of Gastroenterology | February 14, 2025 | Volume: 120 | Issue: 6 | Pages: 1419-1419

10.14309/ajg.0000000000003285 | PMID 39950961 Get It

S848 Perioperative GLP-1 Receptor Agonist Impact on Endoscopy and Colonoscopy Outcomes: A Systematic Review and Meta-Analysis
Alsawaf, Yahya , Saadi, Samer , Tarakji, Zein, Hegazi, Moustafa , Oum, Muhamad, Singh, Siddharth, Saadi, Samer , Murad, M. Hassan

Mayo Clinic

American Journal of Gastroenterology | October 24, 2024 | Volume: 119 | Issue: 10S | Pages: S584-S585

10.14309/01.ajg.0001032760.30423.11 Get It

Medical Therapies for Prevention and Treatment of Inflammatory Pouch Disorders—A Systematic Review and Meta-Analysis
Syal, Gaurav , Barnes, Edward L. , Raffals, Laura E. , Kazzi, Elie S. Al , Haydek, John P. , Agrawal, Manasi , Singh, Siddharth , Barnes, Edward L , Al Kazzi, Elie , Haydek, John

Mayo Clinic

American Journal of Gastroenterology | October 16, 2024 | Volume: 120 | Issue: 1 | Pages: 135-150

10.14309/ajg.0000000000003136 | PMID 39466277 Get It

INTRODUCTION: Pouchitis and Crohn's-like disease of the pouch (CLDP) are common in patients who undergo ileal pouch anal anastomosis for ulcerative colitis. We conducted separate systematic reviews to evaluate the effectiveness of available interventions to prevent and treat pouchitis and CLDP. METHODS: Through systematic literature reviews, we identified studies that evaluated the effectiveness of probiotics, antibiotics, 5-aminosalicylates, nonsystemic oral corticosteroids, and advanced therapies for prevention and treatment of pouchitis and CLDP for meta-analysis. Primary outcomes were occurrence of pouchitis for pouchitis prevention and clinical response for pouchitis and CLDP treatment. We estimated the relative effectiveness of these interventions using the existing placebo response rates or hypothetical spontaneous improvement rates derived from clinical trials of pouchitis, ulcerative colitis, and Crohn's disease. RESULTS: Probiotics were effective for primary (relative risk [RR] 0.18; 95% confidence interval [CI] 0.05–0.62) and secondary prevention (RR 0.17; 95% CI 0.09–0.34) of pouchitis. Antibiotics were effective for treatment of acute and chronic pouchitis (12 cohorts; RR 1.67; 95% CI 1.34–2.01; response rate 65%; 95% CI 52–75) with ciprofloxacin and metronidazole-based regimens being more effective than rifaximin. Advanced therapies were effective for treatment of chronic antibiotic-refractory pouchitis (31 cohorts; RR 1.71; 95% CI 1.28–2.56; response rate 50%; 95% CI 43–57) and CLDP (10 cohorts; RR 2.49; 95% CI 1.87–3.73; response rate 74%; 95% CI 68–79) without significant difference between classes. DISCUSSION: Multiple medical interventions are effective for prevention and treatment of pouchitis and CLDP. Given the overall low quality of data, further research is needed to confirm these findings.
Meta‐analysis: Risk of lymphoma in patients with inflammatory bowel disease in population‐based cohort studies
Alizadeh‐Tabari, Shaghayegh , Singh, Siddharth, Ananthakrishnan, Ashwin N. , Malekzadeh, Reza , Talley, Nicholas J. , Talley, Nicholas J. , Zamani, Mohammad , Murad, Mohammad Hassan, Ananthakrishnan, A N , Malekzadeh, Reza , Zamani, Mohammad , Murad, M. Hassan

Mayo Clinic

Alimentary Pharmacology & Therapeutics | September 23, 2024 | Volume: 60 | Issue: 10 | Pages: 1264-1275

10.1111/apt.18277 | PMID 39310939 Get It

Summary Background There are inconsistencies in the results of the studies investigating the association between inflammatory bowel disease (IBD) and lymphoma. Aims The aim of this study is to systematically appraise the risk of lymphoma development in patients with IBD. Methods We searched Embase, PubMed and Scopus from inception to 30 April 2024 to identify population‐based cohort studies that evaluated the risk of lymphoma in patients with IBD in comparison with those without IBD. We carried out random‐effects meta‐analyses and estimated pooled relative risks (RRs) with 95% confidence intervals (CIs). Results We identified 23 eligible studies reporting 2078 lymphoma events in 656,731 patients with IBD. Patients with IBD had 30% higher odds of lymphoma (RR = 1.30 [95% CI: 1.21–1.40]). The risk of developing both Hodgkin's lymphoma (nine studies, RR = 1.29 [95% CI: 1.06–1.53]) and non‐Hodgkin's lymphoma (16 studies, RR = 1.31 [95% CI: 1.20–1.42]) was increased in patients with IBD (p for interaction = 0.881). The increased risk of lymphoma was observed in both Crohn's disease (17 studies, RR = 1.54 [95% CI: 1.27–1.80]) and ulcerative colitis (20 studies, RR = 1.22 [95% CI: 1.09–1.35]) (p for interaction = 0.026). Meta‐regression demonstrated that mean age of patients, study year, mean study follow‐up duration, and percentages of immunomodulators and biologics use did not influence study outcome. Conclusions The risk of lymphoma is only modestly increased in patients with IBD, with Crohn's disease having a slightly higher risk than ulcerative colitis. In IBD, there appears to be no difference between the risks of Hodgkin's and non‐Hodgkin's lymphoma.
Association Between Frailty Status and Readmissions in Hospitalized Patients With Systemic Lupus Erythematosus
Leung, Christopher , Tahir, Waqas , Rosli, Yenny Y., Lieber, Sarah B. , Makris, Una E. , Ali, Hammad , Singh, Siddharth , Ali, Hammad , Goulabchand, Radjiv , Singh, Namrata , Makris, Una E , Leung, Christopher, Tahir, Waqas, Lee, Jiha

Mayo Clinic

ACR Open Rheumatology | July 29, 2024 | Volume: 6 | Issue: 10 | Pages: 700-706

10.1002/acr2.11722 | PMID 39074031 Get It

ObjectiveThe objective of this study was to evaluate the association between frailty status and risk of readmissions, inpatient death, and cost of admission among patients with systemic lupus erythematosus (SLE).MethodsWe conducted a retrospective cohort study using the National Readmissions Database. Using International Statistical Classification of Diseases, Tenth Revision codes, we identified individuals >18 years of age who had a primary or secondary diagnosis of SLE and were hospitalized between January and June 2018. Using the validated claims‐based Hospital Frailty Risk Score, we categorized individuals as frail (score ≥ 5) or nonfrail (score < 5) at the time of index hospitalization. Our primary outcome was readmission rates post discharge from index hospitalization. Secondary outcomes were rates of inpatient mortality and the total cost of hospitalizations. Cox proportional hazard models were used to estimate the association between frailty and risk of readmissions, with adjustment for age, sex, insurance type, household income, and Elixhauser Comorbidity Index score.ResultsA total of 39,738 patients with SLE met eligibility criteria. Over a median follow‐up of eight months, frail patients with SLE (n = 18,385) had higher Elixhauser Comorbidity Index scores and longer length of stay compared to nonfrail patients with SLE (n = 21,353). Frail patients with SLE had higher readmission rates, a higher proportion of prolonged hospitalizations, and higher costs per hospitalization. Frailty was independently associated with a 10% higher risk of readmission after adjustment for covariates.ConclusionAmong hospitalized adults with SLE, presence of frailty was associated with higher readmission and inpatient mortality rates. Our results highlight that frailty status can help risk stratify patients with SLE at increased risk for readmissions and other adverse health outcomes.
S971 Risk of Major Adverse Cardiovascular Events in Patients With Inflammatory Bowel Diseases or Other Immune-Mediated Inflammatory Disorders on Biologics and Small Molecules: A Systematic Review and Network Meta-Analysis
Mattay, Shivani, Saturno, Dany, Ciorba, Matthew A. , Yarur, Andrés , Singh, Siddharth , Yarur, Andres J , Zamani, Mohammad , Loftus, Edward V. , Deepak, Parakkal

Mayo Clinic

American Journal of Gastroenterology | October 18, 2023 | Volume: 118 | Issue: 10S | Pages: S731-S732

10.14309/01.ajg.0000953524.09735.b1 Get It

Evaluating the optimum number of biopsies to assess histological inflammation in ulcerative colitis: a retrospective cohort study
Battat, Robert , Pai, Rish K. , Wang, Zhongya , Zou, Guangyong , McDonald, John WD, Duijvestein, Marjolijn , Jeyarajah, Jenny , Parker, Claire E. , Viegen, Tanja van, Nelson, Sigrid, Boland, Brigid S. , Singh, Siddharth , Dulai, Parambir S. , Feagan, Brian G. , Sandborn, William J. , Pai, R K , Jeyarajah, Jenny , Parker, Claire E , Singh, S , Dulai, Parambir S , Feagan, B G , Jairath, V , Sandborn, W J , Zou, Guangyong , Casteele, Niels Vande , Valasek, Mark A. , Jairath, Vipul

Mayo Clinic

Alimentary Pharmacology & Therapeutics | September 4, 2023 | Volume: 52 | Issue: 10 | Pages: 1574-1582

10.1111/apt.16083 | PMID 32981088 Get It

SummaryBackgroundThe optimal ulcerative colitis biopsy protocol is unclear.AimTo evaluate the number of biopsies required to accurately assess microscopic disease activity in ulcerative colitisMethodsBiopsies from patients with ≥4 rectosigmoid samples, and clinical and endoscopic data, were retrospectively obtained from a prospective biobank. Histology and endoscopic videos were read blindly. A 4‐biopsy Robarts Histopathology Index (RHI) reference score, consisting of the worst item‐level ratings from four biopsies, was compared to 1‐, 2‐ and 3‐biopsy estimates. Agreement was determined using bivariate errors‐in‐variable regression analysis (acceptance interval: ±8.25). Endoscopic activity and disease location subgroup analyses were also performed.ResultsForty‐six patients had ≥4 rectosigmoid biopsies available (N = 287). The 2‐biopsy (tolerance interval: −7.66, 4.79) and 3‐biopsy (tolerance interval: −4.86, 3.46) RHI scores demonstrated acceptable agreement with 4‐biopsy scores. One‐biopsy scores demonstrated unacceptable agreement (tolerance interval: −13.99, 7.78). Mean RHI scores using the 2‐, 3‐ and 4‐biopsy approaches were similar (6.1 ± 9.6 P = 0.36; 6.8 ± 10.5, P = 0.7; 7.5 ± 11.2), whereas the 1‐biopsy estimate was lower (4.4 ± 8.1, P = 0.06). Histological remission rates were identical for the 2‐, 3‐ and 4‐biopsy methods (65.2%, P = 1.0). Subgroup analysis demonstrated that three biopsies were required in patients with endoscopically active disease. Sampling additional colonic locations yielded lower histological remission rates compared to rectosigmoid sampling alone (33.3% vs 61.9%, P = 0.1).ConclusionsA minimum of two — conservatively, three — biopsies are required to reliably assess disease activity in a single colonic segment using the RHI. Further studies are needed of endoscopically active patients and sampling locations. These results have implications for biopsy strategies in clinical trials and practice.
Early Remission With Induction Therapy Predicts Long-Term Remission in Inflammatory Bowel Diseases: A Systematic Review and Meta-Analysis
Mohan, Babu P. , Khan, Shahab R. , Kassab, Lena L., Chandan, Saurabh , Valentine, John F. , Navaneethan, Udayakumar , Kochhar, Gursimran , Jairath, Vipul , Singh, Siddharth , Jairath, Vipul , Jairath, Vipul , Kassab, Lena, Jairath, V , Jairath, V , Jairath, Vipul , Chandan, Saurabh , Fatima, Noor , Asokkumar, Ravishankar , Ma, Christopher

Mayo Clinic

American Journal of Gastroenterology | May 19, 2023 | Volume: 118 | Issue: 11 | Pages: 2084-2087

10.14309/ajg.0000000000002328 | PMID 37207296 Get It

Comparative Speed of Early Symptomatic Remission With Advanced Therapies for Moderate-to-Severe Ulcerative Colitis: A Systematic Review and Network Meta-Analysis
Ahuja, Dhruv, Jairath, Vipul , Singh, Siddharth , Jairath, Vipul , Jairath, Vipul , Murad, Mohammad Hassan, Jairath, V , Jairath, V , Jairath, Vipul , Ahuja, Dhruv , Murad, M. Hassan , Ma, Christopher

Mayo Clinic

American Journal of Gastroenterology | March 28, 2023 | Volume: 118 | Issue: 9 | Pages: 1618-1625

10.14309/ajg.0000000000002263 | PMID 36976548 Get It

INTRODUCTION: Rapidity of symptom resolution informs treatment choice in patients with moderate-severe ulcerative colitis (UC). We conducted a systematic review and network meta-analysis comparing early symptomatic remission with approved therapies. METHODS: Through a systematic literature review to December 31, 2022, we identified randomized trials in adult outpatients with moderate-severe UC treated with approved therapies (tumor necrosis factor α antagonists, vedolizumab, ustekinumab, janus kinase inhibitors, or ozanimod), compared with each other or placebo, reporting rates of symptomatic remission (based on partial Mayo score, with resolution of rectal bleeding and near-normalization of stool frequency) at weeks 2, 4, and/or 6. We performed random-effects network meta-analysis using a frequentist approach and estimated relative risk (RR) and 95% confidence interval values. RESULTS: On network meta-analysis, upadacitinib was more effective than all agents in achieving symptomatic remission at weeks 2 (range of RR, 2.85–6.27), 4 (range of RR, 1.78–2.37), and 6 (range of RR, 1.84–2.79). Tumor necrosis factor α antagonists and filgotinib, but not ustekinumab and vedolizumab, were more effective than ozanimod in achieving symptomatic remission at week 2, but not at weeks 4 and 6. With approximately 10% placebo-treated patients achieving symptomatic remission at 2 weeks, we estimated 68%, 22%, 23.7%, 23.9%, 22.2%, 18.4%, 15.7%, and 10.9% of upadacitinib-, filgotinib-, infliximab-, adalimumab-, golimumab-, ustekinumab-, vedolizumab-, and ozanimod-treated patients would achieve early symptomatic remission, ustekinumab and vedolizumab achieving rapid remission only in biologic-naïve patients. DISCUSSION: In a systematic review and network meta-analysis, upadacitinib was most effective in achieving early symptomatic remission, whereas ozanimod was relatively slower acting.
Impact of recurrent hospitalization for Clostridioides difficile on longitudinal outcomes in patients with inflammatory bowel diseases: a nationally representative cohort
Venkat, Preethi G., Nguyen, Nghia , Luo, Jiyu , Qian, Alexander S. , Khanna, Sahil , Singh, Siddharth

Mayo Clinic

Therapeutic Advances in Gastroenterology | December 8, 2022 | Volume: 15 | Issue: No issue available | Pages: No page available

10.1177/17562848221141501 | PMID 36518884 Get It

Background: Clostridioides difficile infection (CDI) is associated with poor outcomes in patients with inflammatory bowel diseases (IBD). Objectives: We conducted a nationally representative cohort study to evaluate the impact of recurrent CDI (rCDI)-related hospitalization on longitudinal unplanned healthcare utilization in patients with IBD. Design: This was a retrospective cohort study that utilized the 2017 Nationwide Readmissions Database (NRD). Methods: We identified 13,446 patients with IBD, hospitalized at least twice from January to June 2017 and followed through December 2017; of these, 1,148 had CDI-related hospitalizations. We compared the annual burden of hospitalization and IBD-related surgery in IBD patients with rCDI-related admission versus single CDI-related admission (primary reference), and those with one or more CDI-related admission versus no CDI-related admission (secondary reference). Results: There were no significant differences in risk and burden of unplanned healthcare utilization (time spent in-hospital, 27 days versus 27 days, p = 0.62), 6-month readmission (63% versus 64.3%, p = 0.8) or IBD-related surgery in patients with recurrent (two or more) CDI-related hospitalizations versus single CDI-related admission. However, patients with ⩾1 CDI-related admission versus no CDI admissions experienced higher rate of 6-month readmission (61.1% versus 55.7%, p<.001), total days spent in the hospital per year (median: 26 days versus 21 days, p<.001), total cost across all hospitalizations per year ($212,524 versus $184,384, p < 0.01), and inpatient mortality (3.28% versus 1.81%, p = 0.01), without an increase in risk of IBD-related surgery (6.7% versus 6.4%, p = 0.79). Conclusion: While patients with IBD hospitalized for CDI have poor longitudinal inpatient outcomes, recurrent admissions for CDI may not increase risk of adverse outcomes compared to one-time admission.