laparoscopic adjustable gastric banding for the treatment of adolescent morbid obesity. the...
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Laparoscopic Adjustable Gastric Banding for the treatment of adolescent morbid obesity.The University of Illinois at Chicago experience
Holterman M 2, Browne A 2, Horgan S 1 Browne N 2 and Holterman A 2. From the Department of Surgery, Divisions of Minimally Invasive Surgery1 and Pediatric Surgery 2, and the New Hope Pediatric & Adolescent Weight Management Project at the University of Illinois at Chicago
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The laparoscopic adjustable gastric banding2
ProximalGastricPouch
LAGB Gastric bypass
% EWL at 5 year 56% 58%Mortality 1/2000 1/200Complications 11% 25-40%
Chapman et al. Laparoscopic adjustable gastric banding in the treatment of obesity: a systematic literature review. Surgery 2004;135:326-351
World literature review-Adult
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• 1999 The University of Illinois at Chicago (UIC) - FDA trial B
• 2001 FDA approval for the LAP-BAND® device for laparoscopic adjustable gastric banding (LAGB) weight loss procedure in adults
• 2004 (December) UIC receives FDA IDE for Lap-Band placement in 50 morbidly obese adolescents: A safety and efficacy trial
The FDA trial for “LAGB® Laproscopic adjustable gastric banding as a treatment for morbid obesity in adolescents” at UIC
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LapBand® by Bioenterics3
Port
Lap Band 10 cm Lap Band VG
Balloon
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LapBand®at 45o
ProximalGastric pouch
Normal barium swallowNormal radiograph
Bandat 45o
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Patient characteristics Adolescentn = 10
Adultn = 506
p value
Age (years) 18 (16-20) 41 (21-65)
Preoperative BMI (kg/m²) 49±8 478 0.6
Operative time (min) 55±22 6626 0.8
Length of stay (hs) 12±6 2225 0.8
Follow up BMI postop % EWL BMI postop % EWL %EWL
3 months 42±9 27±19 427 1811 0.7
6 months 36±11 51±32 398 3116 0.5
12 months 37±10 50±26 378 4023 0.8
18 months 34±7 57±23 376 3919 0.6
Complications
●Pouch enlargement (PE) 3 (30%)
58 (11%)
0.1
Reoperations for PE 2 (20%)* at 10 and 16 months
post LAGB
9 (2%)* 0.004*
Pre FDA RESULTS on “off label” patients 5
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Excess weight loss (EWL)
0
15
30
45
60
75
90
3 6 12 18
Months follow up
% E
WL
Adolescent
Adult
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“Conflicted” Adolescents
• Want to lose weight and look like their peers
• Want to eat like their peers
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Pouch enlargement
Band at 45o
Band at 0o Band < 45o
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Adult protocol Modified Adolescent protocolLAPBAND size: 10 or 11 cm
DietWeek 1: LiquidWeek 2-3: Blended dietWeek 4-6: Soft Food.Week 7 and after: 3 small (<4oz) meals/day
No liquid with meals Eat slowly and chew well Stop eating when full
Adjustment (using barium swallow)First adjustment at 6 weeks Readjustment criteria 1) if no longer feels full with meals 2) if do not loose >5lbs/month or > 2lb/wk 3) increased hunger sensationFollow up: RTC suggested 6 times/year or if meet readjustment criteria
LAPBAND size: 11 cm VG
DietSame
Adjustment same Readjustment criteria Same
Follow up: 1. RTC 1wk., 6 wks, then monthly. 2. FDA study visits: q 3 m x 1 yr,
& q 6m x 4yr 3. Close phone and Email contact
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COMPREHENSIVE AND INTEGRATED CAREThe surgeons, the pediatricians, the support team, the research team •The Adult Bariatric Surgery team-
SUPPORT for the Adolescent Bariatric team:Advanced laparoscopic surgeonFormer PI in the FDA trial B; >700 cases of LAGBEXPERIENCE in LAGB surgical and medical management CONTINUITY OF CARE for the adolescent bariatric patients
•The Adolescent Bariatric Surgery team. The PRIMARY care surgeons for the patientsDepartment of Surgery, Division of Pediatric SurgeryAdvanced laparoscopic surgeonASBS criteria
THE TEAM CONCEPT 1
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Team Clinical Evaluation
• Psychologist
• Adolescent Pediatrician
• Nutritionist
• Physical Therapist
• PNP (Nurse Coordinator)
• Pediatric Surgeon
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FDA trial
8 patientsAges 15-17 yr
Ave. SD 16 +/- .91BMI 36-75
Ave. SD 49.5 +/- 13.1
RESULTS
Weight loss 30-48 lbs 35+/-8 56-120 lbs 83+/-20% EWL 14-38% 28+/-10% 36-58% 44+/-12%Complications 0% 0%Readmission 1/8 ER visit
for Barium swallow (negative)
3 months 6 months Range Ave+/-SD Range Ave+/-SD
Comorbidities 50 % Sleep apnea50 % hypertension25 % hyperlipidemia44 % Insulin resistance70 % Fatty liver disease37.5 % Dysmenorrhea25 % Depression
Length of surgery (Ave. 56 minutes) Length of stay (per protocol) (23 hrs)
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In this small early series of the FDA trial, LAGB as a treatment for MO in the adolescents:
1) Is associated with short operative time, brief hospital stay and no mortality. 2) Is effective and safe
SUMMARY11
The highest challenge of LAGB treatment for morbid obesity in the adolescents is the post-operative management. Close and long term follow-up, ensuring diet compliance and maintaining a high index of suspicion for early detection and treatment of pouch dilatation are essential.
CONCLUSION
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If this was your child, what would you do?
• 1/200 vs 1/2000– Operate on 100,000 children: 500 vs 50
• 3 to 4 fold greater morbidity• Probably equal long term efficacy• Compliance problems either way• ??LAGB first and if not successful:->>> gastric
bypass– 0.20 X 0.03 = 0.006– 0.006 + 0.05 = 0.056– 0.056%<0.5% (9-fold safer)
• I would insist on a BAND
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The Adolescent Bariatric Medical Team:Adolescent obesity specialist (adolescent pediatrician)Pediatric subspecialties (pulmonology, hepatology, etc)
The Adolescent Bariatric Clinical Support Team:Nurse Coordinator (Pediatric Nurse Practitioner)Psychologist NutritionistExercise specialist (Physical therapist)
The Adolescent Bariatric Program Support Team:Hospital AdministratorProject CoordinatorMedical insurance CoordinatorPublic relation Coordinator
The ResearchersSchool of Medicine (obesity-related liver disease, metabolic syndrome
Inflammatory states, pulmonary disease)School of Nutrition (Body fat composition and fat metabolismSchool of Public Health ( Economics of obesity, Diet/nutrition and
environmental factors)
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• Intention or need to have another surgical procedure for weight reduction within 12 months of Lap Band placement.
• History of congenital or acquired anomalies of the G.I. tract, such as; congenital or acquired intestinal telangiectasia, Crohn's disease or ulcerative colitis; severe cardiopulmonary disease or severe coagulapathy; hepatic insufficiency or cirrhosis.
• Pregnancy or intention of becoming pregnant in the next 12 months.• Presence of psychiatric problems or immaturity which would compromise
cooperation with the study protocol.• History of previous bariatric surgery, intestinal obstruction or adhesive
peritonitis.• Presence of localized or systemic infection at the time of surgery.• Chronic use of aspirin and/or non-steroidal anti-inflammatory medications
and unwillingness to discontinue the use of these concomitant medications.• History of gastric or esophageal surgery.• Use of weight loss medications.• History of esophageal dysmotility disorders.• Eating disorders.
EXCLUSION CRITERIA FDA Study
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INCLUSION CRITERIA FDA Study
The 1991 NIH Consensus Development Conference on Gastrointestinal Surgery for Severe Obesity guidelines for bariatric surgery :
•Severely obese patients with a BMI (body-mass index) > 40 Kg/m2 or patients with a BMI > 35 Kg/m2 with coexisting morbidities.•Adolescents >14 y/o to < 18 y/o•Tanner Stage IV• > 5 years hx of obesity• > 6 months of supervised weight loss
LAGB® Laparoscopic Adjustable Gastric Banding As A Treatment for Morbid Obesity in Adolescents
FDA Protocol
1
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PREOP SURGICAL EVALUATION
Labs:Metabolic syndrome Insulin resistance Non alcoholic fatty liver disease Baseline nutritional indicesCoagsHematology
Testing:Barium SwallowEsophageal manometryAnesthesia evaluationDXALiver & GB U/SBone AgeSleep study if indicated by pulmonologist
FOLLOW UP
Labs followed q 3 months for 1st year Then q year & prn.
Manometry, Ba Swallow, Liver U/S repeated yearly & prn