Please select the eligibility criteria that correspond to the clinical trial below.
Title: Evaluation of the Effects of Laying Early (Between 12 and 16) a Gastric Band on the Prevention of Morbid Obesity in Late Adolescence. Randomized Checked Against Standard Management of Obesity in This Population.
Brief Summary: MAIN OBJECTIVE To compare the effects of the placement of an adjustable gastric band with "conventional" treatment of obesity.

SECONDARY OBJECTIVES

* Compare the effects of the placement of a gastric band with "conventional" treatment of obesity on quality of life, body composition and parameters of the metabolic syndrome.
* Identify predictors of "good answer to the ring" to determine the best future indications.
* Study of the gastric tolerance.

INCLUSION CRITERIA

1. Adolescents 12 to 16 years and with BMI and weight gain according to sex and age is greater than IMCZ-score \> 4 DP\> 8 kg
2. Obesity "common" non-syndromic.
3. Medical decision of surgical placement of laparoscopic gastric banding.
4. Adolescent and family who understand and accept the need for medical and surgical follow long term.
5. Adolescent and family who fully understood the oral and written information explaining the study and the need for prolonged follow-up.
6. Obtention of oral and written consent of the adolescent and the parents.
7. Parents and adolescents affiliated with the social security system.

NONINCLUSION CRITERIA

1. Intellectual Deficit.
2. psychiatrics contraindication of surgical placement of laparoscopic gastric banding.
3. Obesity with severe binge eating.
4. Pregnancy or wishes of pregnancy in the following year.
5. Non accession adolescent and / or family in the process of medical care before inclusion.
6. Predictable post surgical monitoring difficulties.
7. Suspicion of physical abuse, verbal or negligence / deficiency in care of the family.
8. Participation in a clinical study evaluating a treatment during the 2 years of the study.

EXCLUSION CRITERIA

1. Anesthetic contre indication for placement of a gastric laparoscopic.
2. IMC\> 50 kg/m2 the day of inclusion.

STRATEGIES / PROCEDURES During a routine visit, the study will be presented to the patient and his family. Patients will then be enrolled and randomized. Patients in group A (surgery group) will follow the usual multidisciplinary bariatric surgery in adolescents. Patients in group B start conventional monitoring dietary medical and physical. For both groups follow-up visits will occur every 3 months for 2 years.


Options:
A: Inclusion Criteria:

* Adolescents up to age 19
* Approved for bariatric surgery
* Agreement to participate in Teen-LABS Study/ understand and sign Informed Consent/Assent

Exclusion Criteria:

* Age 19 or greater
* Unable to sign Informed Consent/Assent
B: Inclusion Criteria:

* Adults aged between 18 and 65 years old.
* hypertension diagnosis defined as in use of at least 2 high blood pressure medication at full doses.
* body mass index between 30,0 and 39,9 kg/m2.

Exclusion Criteria:

* hypertension ≥ 180/120 mmHg;
* cerebrovascular diseases in the last 6 months.
* Cardiovascular diseases (myocardial infarction, angina, cardiac failure) in the last 6 months.
* Baseline psychiatric disorders: schizophrenia, bipolar disorder, severe depression, psychosis.
* Renal diseases: diabetic nephropathy, creatinine clearance \< 30 ml/min.
* Patients with secondary hypertension except due to the sleep apnea.
* Advanced peripheral arterial disease
* atrophic gastritis
* Diabetes mellitus type 1 and type 2 with HbA1 c \>7,0%
* alcoholism or use of illicit drugs
* smokers
* previous laparotomy
* severe hepatic disorders
* Pregnancy or women not using effective contraceptive methods.
* Recent neoplasm (\< 5 years)
* Immunosuppressant drugs
* Unable to understanding and follow the study protocol orientations.
C: Inclusion Criteria:

* Children and adolescents aged 5 to 21 years
* BMI higher than the 140% of the 95th percentile for age and gender
* failure to lose satisfactory weight during a period of at least 6 months
* Supportive psychological evaluation
* Presence of a dedicated caretaker from the patient's family
* Motivation, realistic expectations
* Informed consent or assent with concomitant parental consent for patients aged \< 17 years
* Absence of medical and surgical contraindications

Exclusion Criteria:

* Cardiac failure
* Respiratory failure
* Immune deficiency
* GI disease
* Age greater than 21 years
* Inability to sign informed consent / assent
D: Inclusion Criteria:

1. Adolescents 12 to 16 years and with BMI and weight gain according to sex and age is greater than IMCZ-score \> 4 DP\> 8 kg
2. Obesity "common" non-syndromic.
3. Medical decision of surgical placement of laparoscopic gastric banding.
4. Adolescent and family who understand and accept the need for medical and surgical follow long term.
5. Adolescent and family who fully understood the oral and written information explaining the study and the need for prolonged follow-up.
6. Obtention of oral and written consent of the adolescent and the parents.
7. Parents and adolescents affiliated with the social security system.

EXCLUSION CRITERIA

1. Intellectual Deficit.
2. psychiatrics contraindication of surgical placement of laparoscopic gastric banding.
3. Obesity with severe binge eating.
4. Pregnancy or wishes of pregnancy in the following year.
5. Non accession adolescent and / or family in the process of medical care before inclusion.
6. Predictable post surgical monitoring difficulties.
7. Suspicion of physical abuse, verbal or negligence / deficiency in care of the family.
8. Participation in a clinical study evaluating a treatment during the 2 years of the study.
9. Anesthetic contre indication for placement of a gastric laparoscopic.
10. IMC\> 50 kg/m2 the day of inclusion.

Answer: D