MARCO AURELIO SANTO

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Projetos de Pesquisa
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Departamento de Gastroenterologia, Faculdade de Medicina - Docente
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/35 - Laboratório de Nutrição e Cirurgia Metabólica do Aparelho Digestivo, Hospital das Clínicas, Faculdade de Medicina

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Autor: CECCONELLO, Ivan ×

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  • conferenceObject
    Robotic-assisted (RAMIE) x thoracoscopic esophagectomy (MIE): Comparison on safety and lymph nodal dissection in 181 cases.
    (2018) SALLUM, Rubens Antonio Aissar; TAKEDA, Flavio Roberto; SANTO, Marco Aurelio; CECCONELLO, Ivan
  • article 0 Citação(ões) na Scopus
  • article 105 Citação(ões) na Scopus
    Metabolic Improvements in Obese Type 2 Diabetes Subjects Implanted for 1 Year with an Endoscopically Deployed Duodenal-Jejunal Bypass Liner
    (2012) MOURA, Eduardo G. H. de; MARTINS, Bruno C.; LOPES, Guilherme S.; ORSO, Ivan R.; OLIVEIRA, Suzana L. de; GALVAO NETO, Manoel P.; SANTO, Marco A.; SAKAI, Paulo; RAMOS, Almino C.; GARRIDO JUNIOR, Arthur B.; MANCINI, Marcio C.; HALPERN, Alfredo; CECCONELLO, Ivan
    Background: The purpose of this study was to evaluate the effect of the duodenal-jejunal bypass liner (DJBL), a 60-cm, impermeable fluoropolymer liner anchored in the duodenum to create a duodenal-jejunal bypass, on metabolic parameters in obese subjects with type 2 diabetes. Methods: Twenty-two subjects (mean age, 46.2 +/- 10.5 years) with type 2 diabetes and a body mass index between 40 and 60 kg/m(2) (mean body mass index, 44.8 +/- 7.4 kg/m(2)) were enrolled in this 52-week, prospective, open-label clinical trial. Endoscopic device implantation was performed with the patient under general anesthesia, and the subjects were examined periodically during the next 52 weeks. Primary end points included changes in fasting blood glucose and insulin levels and changes in hemoglobin A1c (HbA1c). The DJBL was removed endoscopically at the end of the study. Results: Thirteen subjects completed the 52-week study, and the mean duration of the implant period for all subjects was 41.9 +/- 3.2 weeks. Reasons for early removal of the device included device migration (n = 3), gastrointestinal bleeding (n = 1), abdominal pain (n = 2), principal investigator request (n = 2), and discovery of an unrelated malignancy (n = 1). Using last observation carried forward, statistically significant reductions in fasting blood glucose (-30.3 +/- 10.2 mg/dL), fasting insulin (-7.3 +/- 2.6 mu U/mL), and HbA1c (-2.1 +/- 0.3%) were observed. At the end of the study, 16 of the 22 subjects had an HbA1c < 7% compared with only one of 22 at baseline. Upper abdominal pain (n = 11), back pain (n = 5), nausea (n = 7), and vomiting (n = 7) were the most common device-related adverse events. Conclusions: The DJBL improves glycemic status in obese subjects with diabetes and therefore represents a nonsurgical, reversible alternative to bariatric surgery.
  • article 24 Citação(ões) na Scopus
    Preoperative weight loss in super-obese patients: study of the rate of weight loss and its effects on surgical morbidity
    (2014) SANTO, Marco Aurelio; RICCIOPPO, Daniel; PAJECKI, Denis; CLEVA, Roberto de; KAWAMOTO, Flavio; CECCONELLO, Ivan
    OBJECTIVES: The incidence of obesity and particularly super obesity, has increased tremendously. At our institution, super obesity represents 30.1% of all severely obese individuals in the bariatric surgery program. In super obesity, surgical morbidity is higher and the results are worse compared with morbid obesity, independent of the surgical technique. The primary strategy for minimizing complications in these patients is to decrease the body mass index before surgery. Preoperative weight reduction can be achieved by a hypocaloric diet, drug therapy, an intragastric balloon, or hospitalization. The objective of this study was to analyze the results of a period of hospitalization for preoperative weight loss in a group of super-obese patients. METHODS: Twenty super-obese patients were submitted to a weight loss program between 2006 and 2010. The mean patient age was 46 years (range 21-59). The mean BMI was 66 kg/m(2) (range 51-98) and 12 were women. The average hospital stay was 19.9 weeks and the average weight loss was 19% of the initial weight (7-37%). The average caloric intake was 5 kcal/kg/day. After the weight loss program, the patients underwent gastric bypass surgery. RESULTS: The statistical analysis revealed that after 14 weeks of treatment (15% loss of initial weight), the weight loss was not significant. All patients had satisfactory surgical recovery and were discharged after an average of 4.6 days. CONCLUSION: In super obesity, preoperative weight loss is an important method for reducing surgical risks. Hospitalization and a hypocaloric diet are safe and effective. After 14 weeks, the weight loss rate stabilized, signaling the time of surgical intervention in our study.
  • bookPart
    Doença do Refluxo Gastroesofágico
    (2013) NASI, Ary; SALLUM, Rubens Antônio Aissar; SANTO, Marco Aurelio; CECCONELLO, Ivan
  • article 12 Citação(ões) na Scopus
    Bariatric surgery (sleeve gastrectomy) after liver transplantation: case report
    (2014) PAJECKI, Denis; CESCONETTO, Danielle Menezes; MACACARI, Rodrigo; JOAQUIM, Henrique; ANDRAUS, Wellington; CLEVA, Roberto de; SANTO, Marco Aurelio; ALBUQUERQUE, Luiz Augusto Carneiro D'; CECCONELLO, Ivan
  • article 45 Citação(ões) na Scopus
    Cholecystectomy in Patients Submitted to Bariatric Procedure: A Systematic Review and Meta-analysis
    (2018) TUSTUMI, Francisco; BERNARDO, Wanderley M.; SANTO, Marco A.; CECCONELLO, Ivan
    Weight loss following bariatric surgery increases risk for biliary stones. This study performed a meta-analysis evaluating cholecystectomy risks in bariatric patients. A systematic review and meta-analysis were performed. We evaluated the incidence rate for biliary complications in patients followed after bariatric surgery. We compared the risks for mortality, complications, and in hospital stay among patient submitted to cholecystectomy before, concomitantly with or after bariatric surgery, as well as patients submitted to bariatric surgery and cholecystectomy, and patients submitted only to bariatric surgery in order to evaluate when to perform cholecystectomy in morbidly obese patients. The incidence rate of biliary complications was 5.54 cases/1000 patient year. The addition of cholecystectomy to bariatric surgery resulted in an increased risk for complications (RD = 0.02). The risk for complications (RD = - 0.09) and reoperation (RD = - 0.02) was lower when performed concomitantly with bariatric surgery compared to post-bariatric procedure. Prophylactic cholecystectomy may be avoided. Patients submitted to bariatric surgery have low incidence rate of biliary complications, and concomitant cholecystectomy increases the risk for postoperative complications and operative time. If cholecystectomy is not indicated, patients should be carefully followed with attention for biliary complications, once cholecystectomy performed post-bariatric surgery is at higher risk for complications and reoperations.
  • article 13 Citação(ões) na Scopus
    EARLY COMPLICATIONS IN BARIATRIC SURGERY: incidence, diagnosis and treatment
    (2013) SANTO, Marco Aurelio; PAJECKI, Denis; RICCIOPPO, Daniel; CLEVA, Roberto; KAWAMOTO, Flavio; CECCONELLO, Ivan
    Context Bariatric surgery has proven to be the most effective method of treating severe obesity. Nevertheless, the acceptance of bariatric surgery is still questioned. The surgical complications observed in the early postoperative period following surgeries performed to treat severe obesity are similar to those associated with other major surgeries of the gastrointestinal tract. However, given the more frequent occurrence of medical comorbidities, these patients require special attention in the early postoperative follow-up. Early diagnosis and appropriate treatment of these complications are directly associated with a greater probability of control. Method The medical records of 538 morbidly obese patients who underwent surgical treatment (Roux-en-Y gastric bypass surgery) were reviewed. Ninety-three (17.2%) patients were male and 445 (82.8%) were female. The ages of the patients ranged from 18 to 70 years (average = 46), and their body mass indices ranged from 34.6 to 77 kg/m2. Results Early complications occurred in 9.6% and were distributed as follows: 2.6% presented bleeding, intestinal obstruction occurred in 1.1%, peritoneal infections occurred in 3.2%, and 2.2% developed abdominal wall infections that required hospitalization. Three (0.5%) patients experienced pulmonary thromboembolism. The mortality rate was 0,55%. Conclusion The incidence of early complications was low. The diagnosis of these complications was mostly clinical, based on the presence of signs and symptoms. The value of the clinical signs and early treatment, specially in cases of sepsis, were essential to the favorable surgical outcome. The mortality was mainly related to thromboembolism and advanced age, over 65 years.
  • conferenceObject
    ANEMIA BEFORE AND AFTER BARIATRIC SURGERY: PREVALENCE AND EVOLUTION ON LONG-TERM FOLLOW UP
    (2015) SANTO, Marco; FUKUMOTO, Miwa; KANASHIRO, Newton; CURADO, Taina; DANTAS, Anna; JOAQUIM, Henrique; GARMS, Alan; RICCIOPPO, Daniel; CLEVA, Roberto; CECCONELLO, Ivan
  • conferenceObject
    LATE POSTOPERATIVE OUTCOME OF ROUX-EN-Y GASTRIC BYPASS IN MORBIDLY OBESE PATIENTS - ANALYSIS OF THE INFLUENCE OF GASTROINTESTINAL HORMONES IN WEIGHT REGAIN
    (2015) SANTO, Marco; RICCIOPPO, Daniel; PAJECKI, Denis; KAWAMOTO, Flavio; JOAQUIM, Henrique; CLEVA, Roberto; ANTONANGELO, Leila; MARCAL, Lia; GARMS, Alan; CECCONELLO, Ivan