Childhood Obesity
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Transcript of Childhood Obesity
PCOS – Obesity The Present Day MenacePCOS – Obesity The Present Day Menace
EpidemiologyEpidemiology
There is an epidemic of Childhood obesity in the world
From 1963-91 -Doubling of the incidence of children with BMI of more than 95th centile
Overall scales are going up. Children with the same BMI centiles are now heavier
Genetic shift unlikely. Profound environmental effect
There is an epidemic of Childhood obesity in the world
From 1963-91 -Doubling of the incidence of children with BMI of more than 95th centile
Overall scales are going up. Children with the same BMI centiles are now heavier
Genetic shift unlikely. Profound environmental effect
DefinitionDefinition
Weight centile alone is useless as it does not consider height
Height for weight is better but does not differentiate between increased muscle or fat
BMI reflects the degree of fat content best
BMI = Weight in Kgs / Height in m 2
Weight centile alone is useless as it does not consider height
Height for weight is better but does not differentiate between increased muscle or fat
BMI reflects the degree of fat content best
BMI = Weight in Kgs / Height in m 2
Obesity is not overweight.
Obesity is excess body fat
In adults
BMI > 25 is overweight
BMI > 30 is obese
In children
BMI > 85 centile for the age is overweight
BMI > 95 centile is obese
Obesity is not overweight.
Obesity is excess body fat
In adults
BMI > 25 is overweight
BMI > 30 is obese
In children
BMI > 85 centile for the age is overweight
BMI > 95 centile is obese
DefinitionDefinition
Lab methods Underwater weighing
DEXA
Air displacement plethysmography
Skin fold thickness
Bioelectric impedence
Not useful in clinical practice
Country specific BMI charts Should be prepared and then 85 and 95
centile limits should be used
Lab methods Underwater weighing
DEXA
Air displacement plethysmography
Skin fold thickness
Bioelectric impedence
Not useful in clinical practice
Country specific BMI charts Should be prepared and then 85 and 95
centile limits should be used
DefinitionDefinition
BMI Centile ChartsBMI Centile Charts
Definition and EpidemiologyDefinition and Epidemiology
Increased prevalence is now seen in countries where the major problem used to be malnutrition
Now obesity is caused by poor food choice and decreased activity
Indeed we are seeing this more and more commonly in urban areas in India !
Increased prevalence is now seen in countries where the major problem used to be malnutrition
Now obesity is caused by poor food choice and decreased activity
Indeed we are seeing this more and more commonly in urban areas in India !
Tracking of ObesityTracking of Obesity Three crucial periods determine the
chance of obesity during adulthood Gestational period – Infant’s of Diabetic
Mother’s have higher chance of becoming obese at 6-10 years and persist into adulthood
Adiposity rebound - Early adiposity rebound was related to parental obesity and persistence of obesity in adulthood
Adolescent period
Three crucial periods determine the chance of obesity during adulthood
Gestational period – Infant’s of Diabetic Mother’s have higher chance of becoming obese at 6-10 years and persist into adulthood
Adiposity rebound - Early adiposity rebound was related to parental obesity and persistence of obesity in adulthood
Adolescent period
Childhood onset obesity
Has worse prognosis than adult onset obesity
Associated with
High BP
Increased risk of cardiovascular morbidity
Insulin resistance and dyslipidemia
Lipid profile reveals
High triglyceride levels
Low HDL levels
Visceral fat is most metabolically active
Childhood onset obesity
Has worse prognosis than adult onset obesity
Associated with
High BP
Increased risk of cardiovascular morbidity
Insulin resistance and dyslipidemia
Lipid profile reveals
High triglyceride levels
Low HDL levels
Visceral fat is most metabolically active
Tracking of ObesityTracking of Obesity
Sequel of ObesitySequel of Obesity
Obese children have . . .
2.5 times risk of having high BP
8.5 times risk of being hypertensive adults
Increased left ventricular mass
Higher chance of being insulin resistant
May develop Type 2 diabetes as early as 6 years
Obese children have . . .
2.5 times risk of having high BP
8.5 times risk of being hypertensive adults
Increased left ventricular mass
Higher chance of being insulin resistant
May develop Type 2 diabetes as early as 6 years
Functional ovarian hyperandrogenism
Restrictive airway disease
Obstructive airway disease
Snoring, Sleep apnea, Right ventricular hypertrophy
Heart failure
High incidence of asthma
Functional ovarian hyperandrogenism
Restrictive airway disease
Obstructive airway disease
Snoring, Sleep apnea, Right ventricular hypertrophy
Heart failure
High incidence of asthma
Sequel of ObesitySequel of Obesity
Gynaecological Consequenses Of Obesity
Gynaecological Consequenses Of Obesity
PCOD- Hair-An syndrome PCOD- Hair-An syndrome
AnovulationAnovulation
AmenorrhoeaAmenorrhoea
D.U.B.D.U.B.
Fibroid UterusFibroid Uterus
Fungal InfectionsFungal Infections
InfertilityInfertility
PCOD- Hair-An syndrome PCOD- Hair-An syndrome
AnovulationAnovulation
AmenorrhoeaAmenorrhoea
D.U.B.D.U.B.
Fibroid UterusFibroid Uterus
Fungal InfectionsFungal Infections
InfertilityInfertility
Evaluation of Obese YouthEvaluation of Obese Youth
Family history
SMR, acanthosis and striae, goitre
Blood pressure
Cholesterol, Blood sugar and HbA1c
Liver function tests
Family history
SMR, acanthosis and striae, goitre
Blood pressure
Cholesterol, Blood sugar and HbA1c
Liver function tests
Evaluation of Obese Youth - Endocrine tests
Evaluation of Obese Youth - Endocrine tests
T3, T4, TSH
Cortisol
Dexamethasone suppression test - Low dose
1.5 mg/m2 of Dexamethasone given at 10 p.m.
If short metacarpal, cataract etc. then Ca, Phosphorus, PTH
Bone age
T3, T4, TSH
Cortisol
Dexamethasone suppression test - Low dose
1.5 mg/m2 of Dexamethasone given at 10 p.m.
If short metacarpal, cataract etc. then Ca, Phosphorus, PTH
Bone age
TherapyTherapy
Dietary restriction
Increase physical activity and exercise
Reduce sedentary behavior
Modify behavior
Change of life style for the whole family
Reduce TV viewing and computer games
Dietary restriction
Increase physical activity and exercise
Reduce sedentary behavior
Modify behavior
Change of life style for the whole family
Reduce TV viewing and computer games
Intensive Therapies - IndicationsIntensive Therapies - Indications
BMI > 95 Centile and one medical complication ( co morbidity)
Co morbid conditions include
Dyslipidemia
Disorders of glucose metabolism
Hepatic enzyme derangement
Hypertension ( Systolic or Diastolic)
Pseudotumour
Sleep apnea
Orthopedic problems
BMI > 95 Centile and one medical complication ( co morbidity)
Co morbid conditions include
Dyslipidemia
Disorders of glucose metabolism
Hepatic enzyme derangement
Hypertension ( Systolic or Diastolic)
Pseudotumour
Sleep apnea
Orthopedic problems
Intensive Diet Intensive Diet Calorie intake 2400 to 2940 KJ per day
Aim is to induce a weight loss of 0.5 kg per week
Protein sparing modified fast (PSMF)
2520-3360 KJ/day
1.5 -2.5 g/kg of IBW / day of high quality protein
Carbohydrate 20-40 gms/day
Does not lead to cardiac arrhythmia as was observed earlier
Calorie intake 2400 to 2940 KJ per day
Aim is to induce a weight loss of 0.5 kg per week
Protein sparing modified fast (PSMF)
2520-3360 KJ/day
1.5 -2.5 g/kg of IBW / day of high quality protein
Carbohydrate 20-40 gms/day
Does not lead to cardiac arrhythmia as was observed earlier
Not prescribed for more than 12 weeks
Risks:
Cholelithiasis, hyperuricemia, hypoproteinemia, orhthostatic hypotension, halitosis, diarrhea
PSMF produce rapid weight loss in the short term
In the long term does not seem to be superior to restrictive diet programmes
Not prescribed for more than 12 weeks
Risks:
Cholelithiasis, hyperuricemia, hypoproteinemia, orhthostatic hypotension, halitosis, diarrhea
PSMF produce rapid weight loss in the short term
In the long term does not seem to be superior to restrictive diet programmes
Intensive Diet Intensive Diet
PharmacotherapyPharmacotherapy
Limited data available in children and adolescents
Medications reducing energy intake
Fenfuramine
Phenteramine
Diethylpropion
Sibutramine
Limited data available in children and adolescents
Medications reducing energy intake
Fenfuramine
Phenteramine
Diethylpropion
Sibutramine
LeptinLeptin A hormone secreted by adipocytes in relation
to lipid content
It is a peripheral signal to the hypothalamus of inadequate food intake but NOT of Satiety
Leptin deficiency causing obesity is VERY VERY RARE
Leptin therapy to Leptin sufficient adults is not very impressive in terms of weight loss
No studies in children are available
A hormone secreted by adipocytes in relation to lipid content
It is a peripheral signal to the hypothalamus of inadequate food intake but NOT of Satiety
Leptin deficiency causing obesity is VERY VERY RARE
Leptin therapy to Leptin sufficient adults is not very impressive in terms of weight loss
No studies in children are available
MetforminMetformin Stops hepatic glucose production
Reduces insulin resistance
Several studies have shown impressive weight reduction in dosages varying from 500 mg to 2 gm per day in children of 8 - 14 years
Side effects
Nausea, flatulence, bloating
Diarrhea, Vitamin B12 deficiency
Lactic Acidosis - Rare
Stops hepatic glucose production
Reduces insulin resistance
Several studies have shown impressive weight reduction in dosages varying from 500 mg to 2 gm per day in children of 8 - 14 years
Side effects
Nausea, flatulence, bloating
Diarrhea, Vitamin B12 deficiency
Lactic Acidosis - Rare
Contraindications
Renal failure, creatinine > 1.4 mg/dl
CCF, cardiac and pulmonary insufficiency
Liver disease
Contraindications
Renal failure, creatinine > 1.4 mg/dl
CCF, cardiac and pulmonary insufficiency
Liver disease
MetforminMetformin
No medications are approved for
use in children in routine clinical
practice except Leptin in Leptin
deficiency children
No medications are approved for
use in children in routine clinical
practice except Leptin in Leptin
deficiency children
Bariatric SurgeryBariatric Surgery
Limited experience in children and adolescents
Balloons placed in the stomach are shown to be ineffective
Jejunoileal bypass is not done now due to high complication rate
Roux-en-Y gastric bypass (RYGB) is performed now
Limited experience in children and adolescents
Balloons placed in the stomach are shown to be ineffective
Jejunoileal bypass is not done now due to high complication rate
Roux-en-Y gastric bypass (RYGB) is performed now
RYGBRYGB
Post op complications are many (8.5%)
Post op mortality is 1.5%
In a recent study by Strauss - Adolescents were treated with bariatric surgery
90% lost > 30 kgs and co morbid conditions improved
Complications include iron deficiency, folate deficiency, small bowel obstruction
Post op complications are many (8.5%)
Post op mortality is 1.5%
In a recent study by Strauss - Adolescents were treated with bariatric surgery
90% lost > 30 kgs and co morbid conditions improved
Complications include iron deficiency, folate deficiency, small bowel obstruction
This is the only treatment with evidence that it can induce sustained significant weight reduction in adolescents who have severe obesity
Can only be recommended to those with highest morbidity
As Strauss concluded: “Gastric bypass remains a last resort option for severely obese adolescents”
This is the only treatment with evidence that it can induce sustained significant weight reduction in adolescents who have severe obesity
Can only be recommended to those with highest morbidity
As Strauss concluded: “Gastric bypass remains a last resort option for severely obese adolescents”
Bariatric SurgeryBariatric Surgery
Education and awareness programs for parents are required to prevent adolescent obesity
At risk individuals can be identified with BMI curve
The mainstay of treatment is diet, exercise and behaviour modification
At present no medicine is routinely used in clinical practice to prevent or treat obesity
Education and awareness programs for parents are required to prevent adolescent obesity
At risk individuals can be identified with BMI curve
The mainstay of treatment is diet, exercise and behaviour modification
At present no medicine is routinely used in clinical practice to prevent or treat obesity
Take Home MessageTake Home Message
Concept – Dr. Duru ShahConcept – Dr. Duru Shah
Contributors
Dr. Suvarna Khadilkar
Dr. Vaman Khadilkar
Contributors
Dr. Suvarna Khadilkar
Dr. Vaman Khadilkar
Editors
Dr. Sangeeta Agrawal
Dr. Reena Wani
Editors
Dr. Sangeeta Agrawal
Dr. Reena Wani
We acknowledge the efforts of our :We acknowledge the efforts of our :
Coordinators :
Dr. Sangeeta Agrawal - Central
Dr. Narendra Malhotra - North
Dr. Hema Divakar - South
Dr. P. C. Mahapatra - East
Dr. Uday Thanawala - West
In bringing the FOGSI YOUTH EXPRESS to your city.
Coordinators :
Dr. Sangeeta Agrawal - Central
Dr. Narendra Malhotra - North
Dr. Hema Divakar - South
Dr. P. C. Mahapatra - East
Dr. Uday Thanawala - West
In bringing the FOGSI YOUTH EXPRESS to your city.
This Youth Express has been possible through an educational grant from
This Youth Express has been possible through an educational grant from
Charak Pharma Pvt. Ltd
CIPLA Ltd.
Emcure Pharmaceuticals Ltd
GlaxoSmithKline Pharmaceuticals Limited
Glenmark Pharmaceuticals Ltd.
Metropolis Health Services (India) Pvt.Ltd.
Organon India Ltd
Roche Pharmaceuticals Ltd.
Sandoz Private Limited
USV Limited
Wyeth Limited
Charak Pharma Pvt. Ltd
CIPLA Ltd.
Emcure Pharmaceuticals Ltd
GlaxoSmithKline Pharmaceuticals Limited
Glenmark Pharmaceuticals Ltd.
Metropolis Health Services (India) Pvt.Ltd.
Organon India Ltd
Roche Pharmaceuticals Ltd.
Sandoz Private Limited
USV Limited
Wyeth Limited