Publications by authors named "Roberto Valera"

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Retrospective analysis of surgical pancreatic necrosectomy outcomes in patients with and without obesity.
Roberto J Valera, Mir Shanaz Hossain, Ronit Patnaik, Cesar Valdivieso, Lisandro Montorfano

Surgery· August 2025

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Decreased liver volume after bariatric surgery and its positive impact on liver function tests and lipid profile.
Mauricio Sarmiento-Cobos, Avraham Adelman, Kyle Murchison, Carlos Rivera, Roberto Valera

Surg Obes Relat Dis· July 2025

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Postoperative pulmonary complications in patients with chronic obstructive pulmonary disease undergoing primary laparoscopic bariatric surgery: an MBSAQIP analysis.
Roberto J Valera, Mauricio Sarmiento Cobos, Francisco X Franco, Bakhtawar Mushtaq, Lisandro Montorfano

Surg Obes Relat Dis· January 2025

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Modified Frailty Index Predicts Postoperative Complications Following Parastomal Hernia Repair.
Mustafa Khan, Ronit Patnaik, Melinda Lue, Haisar Dao Campi, Lisandro Montorfano, Roberto J Valera

Am Surg· February 2024

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Predictors and outcomes of acute kidney injury after bariatric surgery: analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program data registry.
Roberto J Valera, Mauricio Sarmiento-Cobos, Lisandro Montorfano, Mustafa Khan, Emanuele Lo Menzo

Surg Obes Relat Dis· November 2023

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The impact of bariatric surgery on hospitalization due to peripheral artery disease and critical limb ischemia: a nationwide analysis.
Roberto J Valera, Mauricio Sarmiento-Cobos, Lisandro Montorfano, Ronit Patnaik, Liang Hong

Surg Obes Relat Dis· October 2023

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Does bariatric surgery change the risk of acute ischemic stroke in patients with a history of transient ischemic attack? A nationwide analysis.
Roberto J Valera, Cristina Botero-Fonnegra, Vicente J Cogollo, Mauricio Sarmiento-Cobos, Lisandro Montorfano

Surg Obes Relat Dis· June 2023

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Impact of Rapid Weight Loss after Bariatric Surgery in Systemic Inflammatory Response and Pulmonary Hemodynamics in Severely Obese Subjects with Pulmonary Hypertension.
Roberto J Valera, Cristina Botero Fonnegra, Vicente J Cogollo, Mauricio Sarmiento-Cobos, Carlos Rivera

J Am Coll Surg· February 2023

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Bariatric surgery decreases hospitalization rates of patients with obstructive lung diseases: a nationwide analysis.
Vicente J Cogollo, Roberto J Valera, Cristina Botero-Fonnegra, Mauricio Sarmiento-Cobos, Lisandro Montorfano

Surg Obes Relat Dis· August 2022

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Ventricular conduction improvement after pericardial fat reduction triggered by rapid weight loss in subjects with obesity undergoing bariatric surgery.
Mauricio Sarmiento-Cobos, Roberto Valera, Cristina Botero Fonnegra, Mileydis Alonso, Carlos Rivera

Surg Obes Relat Dis· February 2022

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Non-absorbable Barbed Sutures for Primary Fascial Closure in Laparoscopic Ventral Hernia Repair.
Lisandro Montorfano, Samuel Szomstein, Roberto J Valera, Stephen J Bordes, Mauricio Sarmiento Cobos

Cureus· February 2022

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Potential beneficial effects of bariatric surgery on the prevalence of kidney cancer: a national database study.
Cristina Botero-Fonnegra, David Romero Funes, Roberto J Valera, Camila Ortiz Gómez, Emanuele Lo Menzo

Surg Obes Relat Dis· January 2022

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Impact of bariatric surgery on the risk of hospitalization due to influenza virus infection.
Roberto J Valera, Cristina Botero-Fonnegra, Vicente J Cogollo, Lisandro Montorfano, Mauricio Sarmiento-Cobos

Surg Obes Relat Dis· December 2021

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Trends in early postoperative major adverse cardiovascular and cerebrovascular events associated with bariatric surgery: an analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program data registry.
Roberto J Valera, Cristina Botero-Fonnegra, Mauricio Sarmiento-Cobos, Carlos E Rivera, Lisandro Montorfano

Surg Obes Relat Dis· December 2021

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Perineal reconstruction after extralevator abdominoperineal resection: Differences among minimally invasive, open, or open with a vertical rectus abdominis myocutaneous flap approaches.
Ilan Kent, Hayim Gilshtein, Lisandro Montorfano, Roberto J Valera, Bora Kahramangil

Surgery· November 2021

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Improvement of glucose metabolism following rapid weight loss after bariatric surgery and its impact on reduction of visceral abdominal fat versus free fat muscle.
Vicente J Cogollo, Carlos E Rivera, Roberto J Valera, Mauricio Sarmiento-Cobos, Lisandro Montorfano

Surg Obes Relat Dis· May 2021

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Adverse Effects Associated with Proton Pump Inhibitor Use.
Marcel Yibirin, Diana De Oliveira, Roberto Valera, Andrea E Plitt, Sophia Lutgen

Cureus· January 2021

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Trends in US Kidney Transplantation During the COVID-19 Pandemic.
Stephen J Bordes, Lisandro Montorfano, Wesley West-Ortiz, Roberto Valera, Alejandro Cracco

Cureus· December 2020

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