Study Results
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Basic Information
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COMPLETED
NA
150 participants
INTERVENTIONAL
2012-03-31
2017-12-31
Brief Summary
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In recent years, it was discovered a number of signaling molecules produced by adipose tissue, whose physiological significance beyond the general metabolic aspects organism. The fat is therefore currently understood as an endocrine organ whose hormones modulate the function of many systems, including the skeleton. These hormones include the adipokines that modulate metabolism skeleton as at tissue level (Leptin, Adiponectin) and indirectly - by activation of neurohumoral hypothalamic centers - Leptin.
Studying endocrine interactions between adipose tissue and bone is a highly topical issue. This mutual communication is a homeostatic feedback system in which adipokines and molecules secreted by osteoblasts and osteoclasts are the connecting link active axes fat - bone tissue. However, the mechanisms of this axis remain largely unknown.
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Detailed Description
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The observed changes in bone metabolism and status in post-bariatric surgery patients potentially involve several mechanisms, including reduced absorption of essential nutrients, diminished calcium absorption leading to secondary hyperparathyroidism, poor vitamin D absorption and restricted energy delivery. In addition, body weight protects against osteoporosis via the bone-strengthening effects of long-term weight bearing. However, long-term decreases in bone mineral density in patients who have undergone successful bariatric surgery are an unexpected, negative effect of this type of therapy.
In the study, parameters of fat and bone tissue and body composition changes are assessed in groups of bariatric patients after LSG, gastric plication and intragastric balloon treatment. Other anticipated benefits of the study treatment include improving the quality of life of. lt will also lead to the introduction of new processes, materials and methods. lt is also possible to expect shortening of the hospital stay, decrease in postoperative morbidity, and the possibility to perform the procedure on an outpatient basis.
The study has been designed as a prospective study, which is in conformity with the principles and guidelines of the Helsinki Declaration, good clinical practice and has been approved by the Ethical Committee of the Faculty of Medicine, University of Ostrava.
The patients enrolled in the study are followed for the period of twelve months. Timetable of the study procedures and controls:
Preoperative examination:
* Demographic data on age, sex, weight, height, smoking
* Assessment of body composition and sampling of blood
* Questionnaires for quality of Life Examination 3 months postoperatively
* Assessment of body composition and sampling of blood
* Questionnaires for quality of Life Examination 6 months after surgery
* Assessment of body composition and sampling of blood
* Questionnaires for quality of Life Examination 12 months after surgery
* Assessment of body composition and sampling of blood
* Questionnaires for quality of Life
Statistical data processing for statistical evaluation descriptive statistics are used (arithmetical average, standard deflection, frequency tables), X2 test, Fisher's exact test, analysis of variance (ANOVA), calculating of the OR (odds ratio) with 95 % confidence intervals, and logistic regression. Statistical tests are evaluated at the significance level of 5%. Statistical analysis is performed in the "Stata 10" programme. Program EpiData is used for data collection.
Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Laparoscopic sleeve gastrectomy
Patients undergoing bariatric surgery procedure of laparoscopic sleeve gastrectomy.
Laparoscopic sleeve gastrectomy
Sleeve gastrectomy involves removing most of the stomach, limiting the amount of food the patient can eat.
Laparoscopic gastric plication
Patients undergoing bariatric surgery procedure of laparoscopic gastric plication.
Laparoscopic gastric plication
Laparoscopic gastric plication involves sewing one or more large folds in the stomach. During the laparoscopic gastric plication, the stomach volume is reduced about 70%, which makes the stomach able to hold less and helps the patient eat less.
Intragastric balloon
Patients undergoing bariatric surgery procedure with intragastric balloon implantation.
Intragastric balloon
The introduction of the balloon is non-invasive as it is inserted endoscopically (down the oesophagus). The balloon is then filled inside the stomach with a dyed physiological solution, which reduces the volume of the stomach.
Intragastric balloon implantation
Intragastric balloons (End-Ball, Medsil) will be implanted in the patients with morbid obesity.
Interventions
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Laparoscopic sleeve gastrectomy
Sleeve gastrectomy involves removing most of the stomach, limiting the amount of food the patient can eat.
Laparoscopic gastric plication
Laparoscopic gastric plication involves sewing one or more large folds in the stomach. During the laparoscopic gastric plication, the stomach volume is reduced about 70%, which makes the stomach able to hold less and helps the patient eat less.
Intragastric balloon
The introduction of the balloon is non-invasive as it is inserted endoscopically (down the oesophagus). The balloon is then filled inside the stomach with a dyed physiological solution, which reduces the volume of the stomach.
Intragastric balloon implantation
Intragastric balloons (End-Ball, Medsil) will be implanted in the patients with morbid obesity.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Diseases of the digestive system associated with disorders of intestinal absorption
* History of corticosteroid therapy in the past 12 months
20 Years
60 Years
ALL
No
Sponsors
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University of Ostrava
OTHER
Vitkovice Hospital, Ostrava, Czech Republic
UNKNOWN
University Hospital Ostrava
OTHER
Responsible Party
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Principal Investigators
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Marek Bužga, MSc., Ph.D.
Role: PRINCIPAL_INVESTIGATOR
Faculty of Medicine, Ostrava University, Ostrava
Locations
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Vítkovice Hospital Ostrava
Ostrava, Moravian-Silesian Region, Czechia
University Hospital Ostrava
Ostrava, Moravian-Silesian Region, Czechia
Countries
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References
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Obesity: preventing and managing the global epidemic. Report of a WHO consultation. World Health Organ Tech Rep Ser. 2000;894:i-xii, 1-253.
Suter M, Calmes JM, Paroz A, Giusti V. A 10-year experience with laparoscopic gastric banding for morbid obesity: high long-term complication and failure rates. Obes Surg. 2006 Jul;16(7):829-35. doi: 10.1381/096089206777822359.
Bose M, Olivan B, Teixeira J, Pi-Sunyer FX, Laferrere B. Do Incretins play a role in the remission of type 2 diabetes after gastric bypass surgery: What are the evidence? Obes Surg. 2009 Feb;19(2):217-229. doi: 10.1007/s11695-008-9696-3. Epub 2008 Sep 27.
Buchwald H, Oien DM. Metabolic/bariatric surgery Worldwide 2008. Obes Surg. 2009 Dec;19(12):1605-11. doi: 10.1007/s11695-009-0014-5.
Koerner A, Kratzsch J, Kiess W. Adipocytokines: leptin--the classical, resistin--the controversical, adiponectin--the promising, and more to come. Best Pract Res Clin Endocrinol Metab. 2005 Dec;19(4):525-46. doi: 10.1016/j.beem.2005.07.008.
Magni P, Dozio E, Galliera E, Ruscica M, Corsi MM. Molecular aspects of adipokine-bone interactions. Curr Mol Med. 2010 Aug;10(6):522-32. doi: 10.2174/1566524011009060522.
Pobeha P, Ukropec J, Skyba P, Ukropcova B, Joppa P, Kurdiova T, Javorsky M, Klimes I, Tkac I, Gasperikova D, Tkacova R. Relationship between osteoporosis and adipose tissue leptin and osteoprotegerin in patients with chronic obstructive pulmonary disease. Bone. 2011 May 1;48(5):1008-14. doi: 10.1016/j.bone.2011.02.017. Epub 2011 Mar 1.
Boyce BF, Xing L. Functions of RANKL/RANK/OPG in bone modeling and remodeling. Arch Biochem Biophys. 2008 May 15;473(2):139-46. doi: 10.1016/j.abb.2008.03.018. Epub 2008 Mar 25.
Makovey J, Naganathan V, Seibel M, Sambrook P. Gender differences in plasma ghrelin and its relations to body composition and bone - an opposite-sex twin study. Clin Endocrinol (Oxf). 2007 Apr;66(4):530-7. doi: 10.1111/j.1365-2265.2007.02768.x.
Hamrick MW, Ferrari SL. Leptin and the sympathetic connection of fat to bone. Osteoporos Int. 2008 Jul;19(7):905-12. doi: 10.1007/s00198-007-0487-9. Epub 2007 Oct 9.
Gomez-Ambrosi J, Rodriguez A, Catalan V, Fruhbeck G. The bone-adipose axis in obesity and weight loss. Obes Surg. 2008 Sep;18(9):1134-43. doi: 10.1007/s11695-008-9548-1. Epub 2008 Jun 19.
Greco EA, Fornari R, Rossi F, Santiemma V, Prossomariti G, Annoscia C, Aversa A, Brama M, Marini M, Donini LM, Spera G, Lenzi A, Lubrano C, Migliaccio S. Is obesity protective for osteoporosis? Evaluation of bone mineral density in individuals with high body mass index. Int J Clin Pract. 2010 May;64(6):817-20. doi: 10.1111/j.1742-1241.2009.02301.x.
Wucher H, Ciangura C, Poitou C, Czernichow S. Effects of weight loss on bone status after bariatric surgery: association between adipokines and bone markers. Obes Surg. 2008 Jan;18(1):58-65. doi: 10.1007/s11695-007-9258-0. Epub 2007 Dec 11.
Buzga M, Svagera Z, Tomaskova H, Hauptman K, Holeczy P. Metabolic Effects of Sleeve Gastrectomy and Laparoscopic Greater Curvature Plication: an 18-Month Prospective, Observational, Open-Label Study. Obes Surg. 2017 Dec;27(12):3258-3266. doi: 10.1007/s11695-017-2779-2.
Other Identifiers
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SGS10/LF/2012
Identifier Type: OTHER_GRANT
Identifier Source: secondary_id
LFOU-SGS-Bariatric Surgery
Identifier Type: -
Identifier Source: org_study_id
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