All Stories

  1. Roux-en-Y Gastric Bypass Improves Insulin Response and Secretion of GLP-1 and PYY in Response to Postprandial Acute Exercise

    Article • Obesity Surgery, November 2025, Springer Science + Business Media

    prof roberto de cleva

  2. Evaluation of l-cell activity in the small intestine according to the extension of the biliopancreatic loop in patients undergoing Roux-en-Y gastric by-pass

    Article • Clinics, January 2025, Elsevier

    prof roberto de cleva

  3. Effects of diet-induced weight loss and Roux-en-Y gastric bypass on the glycemic and gut hormones profile in patients with severe obesity and diabetes

    Article • Clinics, January 2025, Elsevier

    prof roberto de cleva

  4. Preoperative glycemic response to a very low-calorie diet predicts long-term type 2 diabetes remission after bariatric surgery

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2025, FapUNIFESP (SciELO)

    prof roberto de cleva

  5. Cholesterol transfer to high‐density lipoprotein in obesity and the effects of weight loss after bariatric surgery

    Article • Clinical Obesity, June 2024, Wiley

    prof roberto de cleva

  6. CARDIOVASCULAR RISK BEFORE AND AFTER SURGICAL TREATMENT OF SEVERE OBESITY

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2024, FapUNIFESP (SciELO)

    prof roberto de cleva

  7. Postoperative Resting Metabolic Rate and Successful Weight Loss After Roux-en-Y Gastric Bypass

    Article • Obesity Surgery, February 2023, Springer Science + Business Media

    prof roberto de cleva

  8. Exercise modifies hypothalamic connectivity and brain functional networks in women after bariatric surgery: a randomized clinical trial

    Article • International Journal of Obesity, December 2022, Springer Science + Business Media

    prof roberto de cleva

  9. FOOD TOLERANCE AND NUTRITIONAL RISK AFTER SLEEVE GASTRECTOMY AND ROUX-EN-Y GASTRIC BYPASS IN ELDERLY PATIENTS WITH SEVERE OBESITY: A PROSPECTIVE, RANDOMIZED CONTROLLED TRIAL

    Article • Arquivos de Gastroenterologia, September 2022, FapUNIFESP (SciELO)

    prof roberto de cleva

  10. SMALL INTESTINAL L CELL DENSITY IN PATIENTS WITH SEVERE OBESITY AFTER ROUX-EN-Y GASTRIC BYPASS

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2022, FapUNIFESP (SciELO)

    prof roberto de cleva

  11. A randomized clinical trial on the effects of exercise on muscle remodelling following bariatric surgery

    Article • Journal of Cachexia Sarcopenia and Muscle, October 2021, Wiley

    prof roberto de cleva

  12. Home-Based Exercise Training During COVID-19 Pandemic in Post-Bariatric Patients: a Randomized Controlled Trial

    Article • Obesity Surgery, August 2021, Springer Science + Business Media

    prof roberto de cleva

  13. Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study

    Article • Frontiers in Physiology, June 2021, Frontiers

    prof roberto de cleva

  14. Erratum. Exercise-Induced Increases in Insulin Sensitivity After Bariatric Surgery Are Mediated By Muscle Extracellular Matrix Remodeling. Diabetes 2020;69:1675–1691

    Article • Diabetes, May 2021, American Diabetes Association

    prof roberto de cleva

  15. Sleeve Gastrectomy Versus Roux-en-Y Gastric Bypass in the Elderly: 1-Year Preliminary Outcomes in a Randomized Trial (BASE Trial)

    Article • Obesity Surgery, March 2021, Springer Science + Business Media

    prof roberto de cleva

  16. C-peptide level as predictor of type 2 diabetes remission and body composition changes in non-diabetic and diabetic patients after Roux-en-Y gastric bypass

    Article • Clinics, January 2021, Elsevier

    prof roberto de cleva

  17. LACTATE CAN BE A MARKER OF METABOLIC SYNDROME IN SEVERE OBESITY?

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2021, FapUNIFESP (SciELO)

    prof roberto de cleva

  18. OBESIDADE E ESTEATOSE GRAVE: A IMPORTÂNCIA DA AVALIAÇÃO BIOQUÍMICA E ESCORES

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2021, FapUNIFESP (SciELO)

    prof roberto de cleva

  19. Nutritional Inadequacies Among Post-bariatric Patients During COVID-19 Quarantine in Sao Paulo, Brazil

    Article • Obesity Surgery, November 2020, Springer Science + Business Media

    prof roberto de cleva

  20. Exercise Enhances the Effect of Bariatric Surgery in Markers of Cardiac Autonomic Function

    Article • Obesity Surgery, October 2020, Springer Science + Business Media

    prof roberto de cleva

  21. Outpatient Screening of Health Status Among Postbariatric Patients during the COVID‐19 Pandemic in Sao Paulo, Brazil

    Article • Obesity, October 2020, Wiley

    prof roberto de cleva

  22. Influence of Adherence to Social Distancing Due to the COVID-19 Pandemic on Physical Activity Level in Post-bariatric Patients

    Article • Obesity Surgery, October 2020, Springer Science + Business Media

    prof roberto de cleva

  23. Exercise Suppresses The Ubiquitin-proteasome System In The Skeletal Muscle Of Obese Women Following Bariatric Surgery

    Article • Medicine & Science in Sports & Exercise, July 2020, Wolters Kluwer Health

    prof roberto de cleva

  24. Bariatric surgery in the elderly: a randomized prospective study comparing safety of sleeve gastrectomy and Roux-en-Y gastric bypass (BASE Trial)

    Article • Surgery for Obesity and Related Diseases, June 2020, Elsevier

    prof roberto de cleva

  25. Exercise-Induced Increases in Insulin Sensitivity After Bariatric Surgery Are Mediated By Muscle Extracellular Matrix Remodeling

    Article • Diabetes, May 2020, American Diabetes Association

    prof roberto de cleva

  26. Postoperative evolution of insulin sensitivity in diabetic patients

    Article • Revista de Medicina, October 2019, Universidade de Sao Paulo Sistema Integrado de Bibliotecas - SIBiUSP

    prof roberto de cleva

  27. Resting metabolic rate

    Article • Revista de Medicina, October 2019, Universidade de Sao Paulo Sistema Integrado de Bibliotecas - SIBiUSP

    prof roberto de cleva

  28. Exercise Mitigates Bone Loss in Women With Severe Obesity After Roux-en-Y Gastric Bypass: A Randomized Controlled Trial

    Article • The Journal of Clinical Endocrinology & Metabolism, July 2019, Endocrine Society

    prof roberto de cleva

  29. Exercise Mitigates The Loss In Muscle Mass And Functionality In Obese Women Undergoing Bariatric Surgery

    Article • Medicine & Science in Sports & Exercise, June 2019, Wolters Kluwer Health

    prof roberto de cleva

  30. Anemia Before and After Roux-en-Y Gastric Bypass: Prevalence and Evolution on Long-Term Follow-up

    Article • Obesity Surgery, May 2019, Springer Science + Business Media

    prof roberto de cleva

  31. Early glycemic control and incretin improvement after gastric bypass: the role of oral and gastrostomy route

    Article • Surgery for Obesity and Related Diseases, January 2019, Elsevier

    prof roberto de cleva

  32. Very low-calorie diet in candidates for bariatric surgery: change in body composition during rapid weight loss

    Article • Clinics, January 2019, Fundacao Faculdade de Medicina

    prof roberto de cleva

  33. Changes in the intestinal microbiota of superobese patients after bariatric surgery

    Article • Clinics, January 2019, Fundacao Faculdade de Medicina

    prof roberto de cleva

  34. Reversal of Improved Endothelial Function After Bariatric Surgery Is Mitigated by Exercise Training

    Article • Journal of the American College of Cardiology, October 2018, Elsevier

    prof roberto de cleva

  35. TRUNK BODY MASS INDEX: A NEW REFERENCE FOR THE ASSESSMENT OF BODY MASS DISTRIBUTION

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), June 2018, FapUNIFESP (SciELO)

    prof roberto de cleva

  36. Resting metabolic rate and weight loss after bariatric surgery

    Article • Surgery for Obesity and Related Diseases, June 2018, Elsevier

    prof roberto de cleva

  37. Comparison Study of Calcium Intake, Obesity and Metabolic Syndrome in Brazilian Women

    Article • Nutrition and Food Technology Open Access, January 2018, Sci Forschen, Inc.

    prof roberto de cleva

  38. CIRURGIA REVISIONAL NO REGANHO DE PESO APÓS GASTROPLASTIA REDUTORA COM DERIVAÇÃO EM Y-DE-ROUX: A BIPARTIÇÃO INTESTINAL COMO UMA ALTERNATIVA DE ABORDAGEM CIRÚRGICA

    Article • Arquivos Brasileiros de Cirurgia Digestiva Express, November 2017, Arquivos Brasileiros de Cirurgia Digestiva Express

    prof roberto de cleva

  39. INFLUÊNCIA DO VOLUME E DA VELOCIDADE DE ESVAZIAMENTO DA BOLSA GÁSTRICA SOBRE A PERDA DE PESO TARDIA E A TOLERÂNCIA ALIMENTAR APÓS DERIVAÇÃO GÁSTRICA EM Y DE ROUX PARA TRATAMENTO DA OBESIDADE MÓRBIDA

    Article • Arquivos Brasileiros de Cirurgia Digestiva Express, November 2017, Arquivos Brasileiros de Cirurgia Digestiva Express

    prof roberto de cleva

  40. SEGURANÇA E EFICÁCIA DA GASTRECTOMIA VERTICAL EM ADOLESCENTES

    Article • Arquivos Brasileiros de Cirurgia Digestiva Express, November 2017, Arquivos Brasileiros de Cirurgia Digestiva Express

    prof roberto de cleva

  41. Cardiac Remodeling Patterns in Severe Obesity According to Arterial Hypertension Grade

    Article • Obesity Surgery, October 2017, Springer Science + Business Media

    prof roberto de cleva

  42. Resting Metabolic Rate In Patients Submitted To Bariatric Surgery: Comparison of Indirect Calorimetry With Predictive Equations

    Article • Surgery for Obesity and Related Diseases, October 2017, Elsevier

    prof roberto de cleva

  43. Small-Volume, Fast-Emptying Gastric Pouch Leads to Better Long-Term Weight Loss and Food Tolerance After Roux-en-Y Gastric Bypass

    Article • Obesity Surgery, September 2017, Springer Science + Business Media

    prof roberto de cleva

  44. Assessment of Weight Loss With the Intragastric Balloon in Patients With Different Degrees of Obesity

    Article • Surgical Laparoscopy Endoscopy & Percutaneous Techniques, August 2017, Wolters Kluwer Health

    prof roberto de cleva

  45. Muscle strength and body composition in severe obesity

    Article • May 2017, Fundacao Faculdade de Medicina

    prof roberto de cleva

  46. Laparoscopic Treatment of Presinusoidal Schistosomal Portal Hypertension Associated With Postoperative Endoscopic Treatment

    Article • Surgical Laparoscopy Endoscopy & Percutaneous Techniques, April 2017, Wolters Kluwer Health

    prof roberto de cleva

  47. MBAI in severe obesity

    Article • Journal of Human Nutrition and Dietetics, August 2016, Wiley

    prof roberto de cleva

  48. Fall prevalence and bone metabolism in obese elderly patients undergoing bariatric surgery

    Article • Surgery for Obesity and Related Diseases, August 2016, Elsevier

    prof roberto de cleva

  49. Body Composition Evaluation in Severe Obesity: A Critical Review

    Article • Advances in Obesity Weight Management & Control, July 2016, MedCrave Group LLC

    prof roberto de cleva

  50. Use of noninvasive markers to predict advanced fibrosis/cirrhosis in severe obesity

    Article • Surgery for Obesity and Related Diseases, May 2016, Elsevier

    prof roberto de cleva

  51. Left Ventricular Dilation and Pulmonary Vasodilatation after Surgical Shunt for Treatment of Pre-Sinusoidal Portal Hypertension

    Article • PLOS One, April 2016, PLOS

    prof roberto de cleva

  52. Influence of obesity and bariatric surgery on gastric cancer

    Article • Cancer Biology and Medicine, January 2016, Cancer Biology and Medicine

    prof roberto de cleva

  53. Weight Regain After Gastric Bypass: Influence of Gut Hormones

    Article • Obesity Surgery, October 2015, Springer Science + Business Media

    prof roberto de cleva

  54. Correlation between Body Composition and Walking Capacity in Severe Obesity

    Article • PLOS One, June 2015, PLOS

    prof roberto de cleva

  55. BARIATRIC SURGERY IN THE ELDERLY: RESULTS OF A MEAN FOLLOW-UP OF FIVE YEARS

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2015, FapUNIFESP (SciELO)

    prof roberto de cleva

  56. ENDOSCOPIC CHANGES RELATED TO GASTROESOPHAGEAL REFLUX DISEASE: COMPARATIVE STUDY AMONG BARIATRIC SURGERY PATIENTS

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2015, FapUNIFESP (SciELO)

    prof roberto de cleva

  57. Preoperative weight loss in super-obese patients: study of the rate of weight loss and its effects on surgical morbidity

    Article • Clinics, December 2014, Fundacao Faculdade de Medicina

    prof roberto de cleva

  58. Correlation between intra-abdominal pressure and pulmonary volumes after superior and inferior abdominal surgery

    Article • Clinics, July 2014, Fundacao Faculdade de Medicina

    prof roberto de cleva

  59. FUNCTIONAL ASSESSMENT OF OLDER OBESE PATIENTS CANDIDATES FOR BARIATRIC SURGERY

    Article • Arquivos de Gastroenterologia, March 2014, FapUNIFESP (SciELO)

    prof roberto de cleva

  60. Bariatric surgery (sleeve gastrectomy) after liver transplantation: case report

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), January 2014, FapUNIFESP (SciELO)

    prof roberto de cleva

  61. Splenic artery ligature associated with endoscopic banding for schistosomal portal hypertension

    Article • World Journal of Gastroenterology, January 2014, Baishideng Publishing Group Co., Limited (formerly WJG Press)

    prof roberto de cleva, Marcos Perini

  62. Tratamento de curto prazo com liraglutide no reganho de peso após cirurgia bariátrica

    Article • Revista do Colégio Brasileiro de Cirurgiões, June 2013, FapUNIFESP (SciELO)

    prof roberto de cleva

  63. EARLY COMPLICATIONS IN BARIATRIC SURGERY:

    Article • Arquivos de Gastroenterologia, March 2013, FapUNIFESP (SciELO)

    prof roberto de cleva

  64. Correlação entre esplenomegalia e plaquetopenia na forma hepatoesplênica da esquistossomose mansônica

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), December 2010, FapUNIFESP (SciELO)

    prof roberto de cleva

  65. Survey on physicians' knowledge of sepsis: Do they recognize it promptly?

    Article • Journal of Critical Care, December 2010, Elsevier

    prof roberto de cleva

  66. Long-Term Results of Esophagogastric Devascularization and Splenectomy Associated with Endoscopic Treatment in Schistosomal Portal Hypertension

    Article • World Journal of Surgery, July 2010, Springer Science + Business Media

    prof roberto de cleva

  67. Constipation in intensive care unit: Incidence and risk factors

    Article • Journal of Critical Care, December 2009, Elsevier

    prof roberto de cleva

  68. Evaluation of patients with schistosomal portal hypertension treated in a tertiary hospital

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), December 2009, FapUNIFESP (SciELO)

    prof roberto de cleva

  69. Moxifloxacin for the Treatment of Patients with Complicated Intra-abdominal Infections (the AIDA Study)

    Article • Journal of Chemotherapy, April 2009, Taylor & Francis

    prof roberto de cleva

  70. Achado incidental de agenesia do lobo hepático esquerdo em paciente com colecistite aguda

    Article • ABCD Arquivos Brasileiros de Cirurgia Digestiva (São Paulo), December 2008, FapUNIFESP (SciELO)

    prof roberto de cleva

  71. Acute postsurgical suppurative parotitis: current prevalence at Hospital das Clínicas, São Paulo University Medical School

    Article • Revista do Instituto de Medicina Tropical de São Paulo, October 2008, FapUNIFESP (SciELO)

    prof roberto de cleva

  72. Bacterial translocation: Overview of mechanisms and clinical impact

    Article • Journal of Gastroenterology and Hepatology, April 2007, Wiley

    prof roberto de cleva

  73. Pre- and postoperative systemic hemodynamic evaluation in patients subjected to esophagogastric devascularization plus splenectomy and distal splenorenal shunt: A comparative study in schistomomal portal hypertension

    Article • World Journal of Gastroenterology, January 2007, Baishideng Publishing Group Co., Limited (formerly WJG Press)

    prof roberto de cleva

  74. Doctors awareness of spontaneous subarachnoid haemorrhage as a cause of cardiopulmonary arrest

    Article • Resuscitation, October 2006, Elsevier

    prof roberto de cleva

  75. Rhabdomyolysis after Gastric Bypass: Severity and Outcome Patterns

    Article • Obesity Surgery, September 2006, Springer Science + Business Media

    prof roberto de cleva

  76. Bilateral extensive cerebral infarction and mesenteric ischemia associated with segmental arterial mediolysis in two young women

    Article • Pathology International, October 2005, Wiley

    prof roberto de cleva

  77. Congenital achalasia: facts and fantasies

    Article • Diseases of the Esophagus, October 2005, Oxford University Press (OUP)

    prof roberto de cleva

  78. Subcompartmental intra abdominal hypertension

    Article • Intensive Care Medicine, June 2005, Springer Science + Business Media

    prof roberto de cleva

  79. Multiple brain abscesses due to Penicillium spp infection

    Article • Revista do Instituto de Medicina Tropical de São Paulo, June 2005, FapUNIFESP (SciELO)

    prof roberto de cleva

  80. Cervical necrotizing fasciitis due to bacterial tonsillitis

    Article • Clinics, April 2005, FapUNIFESP (SciELO)

    prof roberto de cleva

  81. Intermittent left bundle branch block (LBBB) as a clinical manifestation of myocardial contusion after blunt chest trauma

    Article • Emergency Medicine Journal, March 2005, BMJ

    prof roberto de cleva

  82. Surgical risk for patients with Chagasic achalasia and its correlation with the degree of esophageal dilation

    Article • World Journal of Gastroenterology, January 2005, Baishideng Publishing Group Co., Limited (formerly WJG Press)

    prof roberto de cleva

  83. Complications of gastrectomy with lymphadenectomy in gastric cancer

    Article • Gastric Cancer, December 2004, Springer Science + Business Media

    prof roberto de cleva, Associate Professor of Digestive Surgery Ulysses Ribeiro Jr

  84. Portal hyperflow in patients with hepatosplenic mansonic schistosomiasis

    Article • Revista do Hospital das Clínicas, February 2004, FapUNIFESP (SciELO)

    prof roberto de cleva

  85. Fathal pulmonary hypertension after distal splenorenal shunt in schistosomal portal hypertension

    Article • World Journal of Gastroenterology, January 2004, Baishideng Publishing Group Co., Limited (formerly WJG Press)

    prof roberto de cleva

  86. Pulmonary artery catheter complications: report on a case of a knot accident and literature review

    Article • Revista do Hospital das Clínicas, January 2004, FapUNIFESP (SciELO)

    prof roberto de cleva

  87. Acute renal failure due to abdominal compartment syndrome: report on four cases and literature review

    Article • Revista do Hospital das Clínicas, August 2001, FapUNIFESP (SciELO)

    prof roberto de cleva

  88. Increased Intestinal Permeability After Upper Gastrointestinal Surgery During Enteral Nutrition

    Article • Journal of Parenteral and Enteral Nutrition, January 2000, Wiley

    prof roberto de cleva

  89. Systemic hemodynamic changes in mansonic schistosomiasis with portal hypertension treated by azygoportal disconnection and splenectomy

    Article • The American Journal of Gastroenterology, June 1999, Springer Science + Business Media

    prof roberto de cleva

  90. Cardiomiopatia periparto. Análise crítica da imunossupressão

    Article • Arquivos Brasileiros de Cardiologia, April 1998, FapUNIFESP (SciELO)

    prof roberto de cleva