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Bielawska B, Ouellette-Kuntz H, Patel SV, Anvari M, Zevin B. Severe nutritional complications after bariatric surgery in Ontario adults: a population-based descriptive study. Surg Obes Relat Dis 2020; 16:1784-1793. [DOI: 10.1016/j.soard.2020.06.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 06/08/2020] [Accepted: 06/13/2020] [Indexed: 12/25/2022]
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Velapati SR, Schroeder SE, Schroeder DR, Buttar NS, Mohamed Elfadil O, Hurt RT, Mundi MS. Use of Home Enteral Nutrition in Malnourished Post-Bariatric Surgery Patients. JPEN J Parenter Enteral Nutr 2020; 45:1023-1031. [PMID: 32997355 DOI: 10.1002/jpen.1973] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/14/2020] [Accepted: 07/22/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Bariatric surgery is by far the most effective treatment option available for successfully achieving and maintaining weight loss in the obese population, but it can also be associated with complications that lead to malnutrition. There is limited data on how enteral nutrition (EN) can be used to provide nutrition support in such cases. METHODS Retrospective review of our Home Enteral Nutrition (HEN) database was conducted from February 2013 to April 2018 to identify patients who received HEN because of bariatric surgery-related complication. RESULTS During the study period, 72 patients (86% female, mean age 50.3 ± 11.6 years) initiated HEN because of bariatric surgical complication. Most common bariatric surgery was Roux-en-Y (74%) and most common indication for HEN was malnutrition/failure to thrive (33%). HEN was most commonly provided through nasojejunal feeds and resulted in an average increase in body weight and body mass index from 74.8 kg and 26.5, respectively, before HEN to 76.9 kg and 27.2, respectively, at the end of the HEN period. Through HEN, patients received 22.2 ± 7.9 kcal/kg/d and 1.0 ± 0.3 g/kg/d protein, meeting 94% ± 17% of their energy goals and 95% ± 29% of their protein goals. Vitamin deficiencies were noted in 69% of patients at the time of HEN initiation, which improved to 10% after enteral feeds and appropriate vitamin supplementation. CONCLUSION HEN is safe and effective in treating malnutrition and vitamin deficiencies that might occur as a complication of bariatric surgery, leading to avoidance of parenteral nutrition support in most cases.
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Affiliation(s)
- Saketh R Velapati
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Darrell R Schroeder
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - Navtej S Buttar
- Division of Gastroenterology, Hepatology and Nutrition, University of Louisville, Louisville, Kentucky, USA
| | - Osman Mohamed Elfadil
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
| | - Ryan T Hurt
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
- Division of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
- Division of Gastroenterology, Hepatology and Nutrition, University of Louisville, Louisville, Kentucky, USA
| | - Manpreet S Mundi
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota, USA
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Charles EJ, Mehaffey JH, Hawkins RB, Safavian D, Schirmer BD, Hallowell PT. Benefit of feeding tube placement for refractory malnutrition after bariatric surgery. Surg Obes Relat Dis 2018; 14:162-167. [PMID: 28169202 PMCID: PMC5484748 DOI: 10.1016/j.soard.2016.12.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/18/2016] [Accepted: 12/19/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Bariatric surgery provides durable weight loss and decreases the incidence of co-morbid conditions for people with obesity. Most patients benefit from resultant weight loss, but some are at risk for postoperative refractory malnutrition, a serious but poorly understood complication. OBJECTIVE To evaluate differences in bariatric surgery patients who received a feeding tube postoperatively for malnutrition compared with other indications. SETTING Retrospective cohort study at an academic bariatric surgery center (1985-2015). METHODS All bariatric surgery patients that received a feeding tube postoperatively over a 30-year period were identified. Data abstraction from the medical record was performed to assess demographic characteristics, operative details, tube indication, and resultant body mass index (BMI) changes. RESULTS From a total of 3487 patients who underwent bariatric surgery during the study period, 139 (3.9%) required placement of a feeding tube postoperatively. Refractory malnutrition was the indication in 24 patients, all after Roux-en-Y gastric bypass. There were no significant differences between these patients and other bariatric surgery patients in terms of mean age (40.6±9.9 versus 43.1±13.4 years, P = .4) and preoperative BMI (47.5±10.5 versus 51.0±9.6 kg/m2, P = .1). The median time from surgery to tube placement for malnutrition patients was 4 years. Compared with other feeding tube indications, malnutrition patients had higher percent excess BMI lost after surgery (126.2±31.9 versus 52.5±44.3%, P<.0001). After tube placement, malnutrition patients had a significant increase in mean BMI compared with other indications (14.5±20.9 versus-13.0±14.0%, P< .001). CONCLUSION Patients with refractory malnutrition benefit from feeding tube placement, which results in a significant increase in BMI.
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Affiliation(s)
- Eric J Charles
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - J Hunter Mehaffey
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Robert B Hawkins
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Dana Safavian
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Bruce D Schirmer
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Peter T Hallowell
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia.
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Compher C, Winkler MF, Guenter P, Steiger E. Nutrition Management of Home Parenteral Nutrition Among Patients With Enterocutaneous Fistula in the Sustain Registry. JPEN J Parenter Enteral Nutr 2017; 42:412-417. [PMID: 29187086 DOI: 10.1177/0148607117695246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 01/20/2017] [Indexed: 11/15/2022]
Abstract
BACKGROUND Home parenteral nutrition (HPN) is a vital therapy for patients who have the diagnosis of enterocutaneous fistula (ECF), yet little is known about how these patients are managed. This research compares nutrition management of adults with ECF as the indication for HPN therapy to those with other indications. METHODS This is an analysis of data from adult HPN patients in the Sustain registry enrolled between August 2011 and February 2014 who have the diagnosis of ECF or other indication for HPN who served as the control group. Differences between the ECF and control group were assessed by t test, analysis of variance, or χ2 as appropriate. RESULTS There were 141 HPN patients with ECF and 632 control patients. Patients with ECF were older (55 vs 50 years, P < .001), more frequently had a goal for future surgery (30% vs 15%, P = .010), had greater prevalence of overweight/obesity (33% vs 20%, P = .04), and had a lower serum albumin (2.98 ± 0.65 g/dL vs 3.16 ± 0.66 g/dL, P = .006) than controls. The diet order was more frequently nil per os (NPO) in patients with ECF (48% vs 22%, P < .001), and amino acid content of HPN was greater (111.90 ± 29.11 vs 102.06 ± 27.84, P < .001) than in controls. There were no differences in patterns of weight change by ECF or control groups, although underweight patients gained, normal-weight patients maintained, and overweight/obese patients lost weight and serum albumin increased similarly. CONCLUSIONS The HPN management of patients with ECF is similar to other HPN patients other than greater provision of protein, more frequent NPO status, and a goal for future surgery.
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Affiliation(s)
- Charlene Compher
- University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania, USA
| | - Marion F Winkler
- Rhode Island Hospital and Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Peggi Guenter
- American Society for Parenteral and Enteral Nutrition (ASPEN), Silver Spring, Maryland, USA
| | - Ezra Steiger
- Digestive Disease Institute, Cleveland Clinic, Cleveland, Ohio, USA
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5
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Home parenteral nutrition (HPN) in patients with post-bariatric surgery complications. Clin Nutr 2017; 36:1345-1348. [DOI: 10.1016/j.clnu.2016.08.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 08/25/2016] [Accepted: 08/31/2016] [Indexed: 01/14/2023]
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Dickerson RN, Patel JJ, McClain CJ. Protein and Calorie Requirements Associated With the Presence of Obesity. Nutr Clin Pract 2017; 32:86S-93S. [PMID: 28388369 DOI: 10.1177/0884533617691745] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Obesity compounds the metabolic response to critical illness and increases the risk for overfeeding complications due to its comorbidities. Hypocaloric, high-protein nutrition therapy affords the hospitalized patient with obesity the opportunity to achieve net protein anabolism with a reduced risk of overfeeding complications. The intent of this review is to provide the theoretical framework for development of a hypocaloric high-protein regimen, scientific evidence to support this mode of therapy, and unique considerations for its use in specialized subpopulations. Macronutrient goals and practical suggestions for patient monitoring are given.
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Affiliation(s)
- Roland N Dickerson
- 1 Department of Clinical Pharmacy, University of Tennessee College of Pharmacy, Memphis, Tennessee, USA
| | - Jayshil J Patel
- 2 Division of Pulmonary & Critical Care Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Craig J McClain
- 3 Departments of Medicine and Pharmacology & Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
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7
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Japanese Guidelines for Nutrition Support Therapy in the Adult and Pediatric Critically Ill Patients: Disease-Specific Nutrition Support Therapy. ACTA ACUST UNITED AC 2017. [DOI: 10.3918/jsicm.24_569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Allan PJ, Stevens P, Abraham A, Paine P, Farrer K, Teubner A, Carlson G, Lal S. Outcome of intestinal failure after bariatric surgery: experience from a national UK referral centre. Eur J Clin Nutr 2016; 70:772-8. [DOI: 10.1038/ejcn.2016.37] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 10/08/2015] [Accepted: 10/17/2015] [Indexed: 12/27/2022]
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9
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Beebe ML, Crowley N. Can Hypocaloric, High-Protein Nutrition Support Be Used in Complicated Bariatric Patients to Promote Weight Loss? Nutr Clin Pract 2015; 30:522-9. [DOI: 10.1177/0884533615591605] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
| | - Nina Crowley
- Medical University of South Carolina Bariatric Surgery Program, Charleston, South Carolina
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10
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Isom KA, Andromalos L, Ariagno M, Hartman K, Mogensen KM, Stephanides K, Shikora S. Nutrition and metabolic support recommendations for the bariatric patient. Nutr Clin Pract 2014; 29:718-39. [PMID: 25288251 DOI: 10.1177/0884533614552850] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Managing the metabolic needs of the patient with obesity is a challenge unto itself without the added demands of accounting for an altered gastrointestinal tract. Nevertheless, with about 200,000 bariatric procedures being performed annually in the United States, clinicians must be prepared to manage the critically ill bariatric surgery patient. This article reviews the recent literature relating to nutrient needs and metabolic support for the bariatric patient. Bariatric patients are at risk for several micronutrient deficiencies, including vitamins D and B₁₂, calcium, and iron; some bariatric procedures affect macronutrient needs as well. Literature on nutrition support guidelines for the bariatric population is limited. However, with an understanding of the anatomical and physiological effects of bariatric surgery, recent guidelines for critically ill patients with obesity can be applied to the bariatric surgery population. The unique needs of the bariatric population, such as susceptibility to micronutrient deficiencies and specialized access routes, must be considered to provide safe and efficacious nutrition support. Further research is necessary to develop specific nutrition support recommendations for the bariatric population.
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Affiliation(s)
- Kellene A Isom
- Brigham and Women's Hospital Center for Metabolic and Bariatric Surgery Boston, Massachusetts
| | - Laura Andromalos
- Brigham and Women's Hospital Center for Metabolic and Bariatric Surgery Boston, Massachusetts
| | - Meghan Ariagno
- Brigham and Women's Hospital Center for Metabolic and Bariatric Surgery Boston, Massachusetts
| | - Katy Hartman
- Brigham and Women's Hospital Center for Metabolic and Bariatric Surgery Boston, Massachusetts
| | - Kris M Mogensen
- Brigham and Women's Hospital Department of Nutrition, Boston, Massachusetts
| | - Katrina Stephanides
- Brigham and Women's Hospital Center for Metabolic and Bariatric Surgery Boston, Massachusetts
| | - Scott Shikora
- Brigham and Women's Hospital Center for Metabolic and Bariatric Surgery Boston, Massachusetts
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Dickerson RN. Hypocaloric, high-protein nutrition therapy for critically ill patients with obesity. Nutr Clin Pract 2014; 29:786-91. [PMID: 25049263 DOI: 10.1177/0884533614542439] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
We published the first article that addressed hypocaloric, high-protein enteral nutrition therapy for critically ill patients with obesity more than 10 years ago. This study demonstrated that it was possible to successfully achieve this mode of therapy with a commercially available high-protein enteral formula and concurrent use of protein supplements. This study was also the first to demonstrate improved clinical outcomes with the use of hypocaloric, high-protein nutrition therapy. The results of this study, its unique findings, and shortcomings are discussed. Subsequent studies have added clarity to the effective use of this therapy, including its use in home parenteral nutrition patients, patients with class III obesity, and older patients with obesity.
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12
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Schiavone PA, Piccolo K, Compher C. Application of the A.S.P.E.N. Clinical Guideline for Nutrition Support of Hospitalized Adult Patients With Obesity. Nutr Clin Pract 2013; 29:73-7. [DOI: 10.1177/0884533613510183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
| | - Korinne Piccolo
- Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
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13
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Choban P, Dickerson R, Malone A, Worthington P, Compher C. A.S.P.E.N. Clinical Guidelines. JPEN J Parenter Enteral Nutr 2013; 37:714-44. [DOI: 10.1177/0148607113499374] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Patricia Choban
- Mt Carmel Hospital, Central Ohio Surgical Associates, Columbus, OH, USA
| | | | - Ainsley Malone
- Department of Pharmacy, Mt Carmel West Hospital, Columbus, OH, USA
| | | | - Charlene Compher
- University of Pennsylvania School of Nursing, Philadelphia, PA, USA
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Mechanick JI, Youdim A, Jones DB, Garvey WT, Hurley DL, McMahon MM, Heinberg LJ, Kushner R, Adams TD, Shikora S, Dixon JB, Brethauer S. Clinical practice guidelines for the perioperative nutritional, metabolic, and nonsurgical support of the bariatric surgery patient--2013 update: cosponsored by American Association of Clinical Endocrinologists, The Obesity Society, and American Society for Metabolic & Bariatric Surgery. Obesity (Silver Spring) 2013; 21 Suppl 1:S1-27. [PMID: 23529939 PMCID: PMC4142593 DOI: 10.1002/oby.20461] [Citation(s) in RCA: 740] [Impact Index Per Article: 67.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Accepted: 12/27/2012] [Indexed: 02/06/2023]
Abstract
The development of these updated guidelines was commissioned by the AACE, TOS, and ASMBS Board of Directors and adheres to the AACE 2010 protocol for standardized production of clinical practice guidelines (CPG). Each recommendation was re-evaluated and updated based on the evidence and subjective factors per protocol. Examples of expanded topics in this update include: the roles of sleeve gastrectomy, bariatric surgery in patients with type-2 diabetes, bariatric surgery for patients with mild obesity, copper deficiency, informed consent, and behavioral issues. There are 74 recommendations (of which 56 are revised and 2 are new) in this 2013 update, compared with 164 original recommendations in 2008. There are 403 citations, of which 33 (8.2%) are EL 1, 131 (32.5%) are EL 2, 170 (42.2%) are EL 3, and 69 (17.1%) are EL 4. There is a relatively high proportion (40.4%) of strong (EL 1 and 2) studies, compared with only 16.5% in the 2008 AACE-TOS-ASMBS CPG. These updated guidelines reflect recent additions to the evidence base. Bariatric surgery remains a safe and effective intervention for select patients with obesity. A team approach to perioperative care is mandatory with special attention to nutritional and metabolic issues.
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Mechanick JI, Youdim A, Jones DB, Garvey WT, Hurley DL, McMahon MM, Heinberg LJ, Kushner R, Adams TD, Shikora S, Dixon JB, Brethauer S. Clinical practice guidelines for the perioperative nutritional, metabolic, and nonsurgical support of the bariatric surgery patient--2013 update: cosponsored by American Association of Clinical Endocrinologists, the Obesity Society, and American Society for Metabolic & Bariatric Surgery. Endocr Pract 2013; 19:337-72. [PMID: 23529351 PMCID: PMC4140628 DOI: 10.4158/ep12437.gl] [Citation(s) in RCA: 276] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The development of these updated guidelines was commissioned by the AACE, TOS, and ASMBS Board of Directors and adheres to the AACE 2010 protocol for standardized production of clinical practice guidelines (CPG). Each recommendation was re-evaluated and updated based on the evidence and subjective factors per protocol. Examples of expanded topics in this update include: the roles of sleeve gastrectomy, bariatric surgery in patients with type-2 diabetes, bariatric surgery for patients with mild obesity, copper deficiency, informed consent, and behavioral issues. There are 74 recommendations (of which 56 are revised and 2 are new) in this 2013 update, compared with 164 original recommendations in 2008. There are 403 citations, of which 33 (8.2%) are EL 1, 131 (32.5%) are EL 2, 170 (42.2%) are EL 3, and 69 (17.1%) are EL 4. There is a relatively high proportion (40.4%) of strong (EL 1 and 2) studies, compared with only 16.5% in the 2008 AACE-TOS-ASMBS CPG. These updated guidelines reflect recent additions to the evidence base. Bariatric surgery remains a safe and effective intervention for select patients with obesity. A team approach to perioperative care is mandatory with special attention to nutritional and metabolic issues.
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Mechanick JI, Youdim A, Jones DB, Timothy Garvey W, Hurley DL, Molly McMahon M, Heinberg LJ, Kushner R, Adams TD, Shikora S, Dixon JB, Brethauer S. Clinical practice guidelines for the perioperative nutritional, metabolic, and nonsurgical support of the bariatric surgery patient--2013 update: cosponsored by American Association of Clinical Endocrinologists, the Obesity Society, and American Society for Metabolic & Bariatric Surgery. Surg Obes Relat Dis 2013; 9:159-91. [PMID: 23537696 DOI: 10.1016/j.soard.2012.12.010] [Citation(s) in RCA: 426] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Accepted: 12/27/2012] [Indexed: 02/06/2023]
Abstract
The development of these updated guidelines was commissioned by the AACE, TOS, and ASMBS Board of Directors and adheres to the AACE 2010 protocol for standardized production of clinical practice guidelines (CPG). Each recommendation was re-evaluated and updated based on the evidence and subjective factors per protocol. Examples of expanded topics in this update include: the roles of sleeve gastrectomy, bariatric surgery in patients with type-2 diabetes, bariatric surgery for patients with mild obesity, copper deficiency, informed consent, and behavioral issues. There are 74 recommendations (of which 56 are revised and 2 are new) in this 2013 update, compared with 164 original recommendations in 2008. There are 403 citations, of which 33 (8.2%) are EL 1, 131 (32.5%) are EL 2, 170 (42.2%) are EL 3, and 69 (17.1%) are EL 4. There is a relatively high proportion (40.4%) of strong (EL 1 and 2) studies, compared with only 16.5% in the 2008 AACE-TOS-ASMBS CPG. These updated guidelines reflect recent additions to the evidence base. Bariatric surgery remains a safe and effective intervention for select patients with obesity. A team approach to perioperative care is mandatory with special attention to nutritional and metabolic issues.
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Current world literature. Curr Opin Endocrinol Diabetes Obes 2012; 19:429-34. [PMID: 22931856 DOI: 10.1097/med.0b013e328358c698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Kushner RF. Obesity medicine--the time has come. Nutr Clin Pract 2011; 26:510-1. [PMID: 21947633 DOI: 10.1177/0884533611418344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Robert F Kushner
- Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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