Comprehensive Overview of Bariatrics and Pre/Post-Transplant Obesity

 
Bariatrics and Pre/Post
Transplant Obesity
 
Jennifer Williams, MPH, RD, CSOWM, LDN
Surgical Weight Loss Dietitian
October 19, 2021
 
Agenda
 
Medical Weight Loss
Reasons for Bariatric Surgery
Types of Bariatric Surgery at VUMC
Eligibility/Exclusion Parameters for Transplant
Health Benefits  - Before & After
Nutrition Factors
Covid-19 Impact
VUMC Surgical Weight Loss Locations
undefined
 
MEDICAL WEIGHT
LOSS
 
When pts desire lifestyle intervention and/or the medication route or when
BMI does not qualify for bariatric surgery.
 
Medical Weight Loss –
Nutrition, lifestyle, and medication
 
Can be explored first, before bariatric surgery
Genetic and metabolic testing
Pharmaceutical intervention
Providers (MDs, NPs, RDs) in MWL loss see ~ 25 patients/year (2020)* for
liver transplant alone.  
*2021 data is currently being analyzed*
We know that “Specialized medical weight intervention is effective in
treating high-risk obesity with complications.” Srivastava recently
published a retrospective weight loss study should where
approximately 50% of [medical weight loss patients reviewed] were
able to achieve > 7% weight loss [over the course of 6 months].
1
 
1. Srivastava G, Paris,C, Johnson J, et al. Specialized medical weight management intervention for
high-risk obesity. 
JHEOR. 
2021; 8 (2) 1 – 5. doi:10.36469/jheor.2021.24896
undefined
 
REASONS FOR
BARIATRIC SURGERY
 
 
Reasons for Bariatric Surgery
 
Obesity, as defined by a BMI > 35 with co-morbidities (DM, HTN,
OSA, etc) or BMI > 40 without co-morbidities
Multiple failed diet attempts
Failed weight loss medication attempts
Declining quality of life
Co-morbidities directly related to excess weight
undefined
 
TYPES OF BARIATRIC
SURGERY AT VUMC
 
 
VUMC Bariatric Surgery
Options
 
Currently Offered:
Roux-en-Y Gastric Bypass (RYGB)
Vertical Sleeve Gastrectomy (VSG)*
No Longer Offered:
Adjustable gastric banding – the “lap band” (AGB)
 
 
 
 
* VSG is typically what is completed on transplant patients, due to concerns with
medication absorption.
undefined
 
ELIGIBILITY/
EXCLUSION
PARAMETERS FOR
TRANSPLANT PTS
 
 
General Eligibility
 
All VUMC transplant patient referrals for surgical weight loss are
sent to the Vanderbilt Weight Loss Clinic’s program coordinator –
Wendy Tarpley, RN, BSN.
There are no exclusions related to solid transplant need at this
time. Per Wendy, there is no “exclusion for transplant patients
because more patients are having the sleeve* to qualify for
transplant surgery (BMI must be less than 40).”
 
Eligibility - Steps
 
Pts are screened and then start on the surgical pathway.
Surgical consult with MD
Telehealth Group Nutrition Education Class (60 minutes) with a
Registered Dietitian to teach through nutrition changes required of
those choosing Bariatric Surgery - 
Bariatric Nutrition Guide
1:1 Nutrition Assessment with a RD (1 month after education class) –
evaluation of progress on nutrition changes
Additional Nutrition Reassessment(s) 
- as clinically required by RD or
due to insurance
Support Group Attendance
Psych Eval
Labs, medical clearance, etc.
 
Eligibility & Follow Through
 
“Approximately 7 out of every 10 transplant patient referrals to our
surgical weight loss program unfortunately NEVER follow through
with the initial consult with the surgeon
.” - 
Wendy Tarpley, RN, BSN –
Bariatric Program Coordinator
 
 
 
 
 
 
undefined
 
HEALTH BENEFITS –
BEFORE & AFTER
 
 
Bariatric Surgery BEFORE
 
When bariatric surgery is initiated before transplant, many risk
factors are reduced:
Improved glycemic control, reduction or elimination of DM meds,
resolution of DM at times
Dramatic improvement in BP, discontinuation/reduction in HTN meds
Improved mobility
Potential ability to halt/delay disease progression, so as to prevent
transplant need or how soon a transplant would be required –
depending on disease state
Reduced weight (BMI of < 40), so that surgeon can proceed safely with
transplant
Improved energy
Often, bariatric surgery requirements result in a healthier diet that leads
to a more well nourished pt.
 
Bariatric Surgery AFTER
 
Most studies support waiting a minimum of 1 year AFTER transplant
surgery for bariatric surgery to take place, when needed due to
obesity.
Assistance in achieving a weight that taxes the body less, helping
organs to last longer
Continued assistance in delaying other disease progressions, co-
morbidities
All the same benefits as BEFORE - improvement in overall health
and quality of life!
 
 
SWL - Weight Loss
Percentages
 
VSG – generally produces a weight loss of 50 – 60% of excess
weight*
RYGB – generally produces a weight loss of 60 – 75% of excess
weight
 
Weight loss can certainly exceed these levels, but this is what is
typical.
 
*Excess weight is defined as the difference between the patient’s current weight
and the weight that places the patient at a BMI of 25.
undefined
 
NUTRITION
FACTORS
 
 
Nutrition
 
Macronutrients & micronutrients are monitored through diet recalls with
RDs and nutrition labs (week 1 and then months 1, 3, 6, 12, 18 and once
a year at 2 years postop bariatric surgery and beyond)
 
The RDs in the weight loss clinics provide guidance, deferring to renal or
other specialty providers, as appropriate, to ensure appropriate
nourishment with the following:
Protein
Calories
Fat
Carbohydrate
Fluid & Electrolytes
Vitamins and Minerals
 
Nutrition - Overview
 
Protein
Higher % generally (ASMBS guidelines: 60 – 80 grams/day)
Mindful of kidney function (late staged disease/dialysis) – protein is
modified as appropriate.
Calories
Initially low at approximately 500/day for first 3 months after WLS;
maintenance generally 1000 – 1200 for women, 1200 – 1400/1500 for
men
Fat
Typically roughly 30 - 35%, depending on disease state/conditions
 
Nutrition - Overview
 
Carbohydrate
The most variable of the macronutrients, generally fairly low, but may
represent up to 40% longer term.
Fluid & Electrolytes
Normally liberal (> 64 oz+), unless restrictions r/t CHF, dialysis, etc.
Limited caffeine (limited to 1 – 2 cups/day of coffee or equivalent)
Electrolytes - levels are monitored by labs and based on s/sx after WLS
Vitamins and Minerals
Levels are monitored by labs
ASMBS compliant supplements are recommended, unless otherwise
needed
undefined
 
LONG TERM
IMPLICATIONS &
CHALLENGES
 
 
Potential Long Term
Challenges
 
Dumping syndrome
Hypoglycemia
Malnutrition
Ulcers
Bowel obstruction/ “blockages”
Transference of addiction (ETOH, exercise, etc)
undefined
 
COVID-19
IMPACT
 
 
Covid Impact
 
Internal clinical focus has shifted to safety precautions, telehealth,
& additional measures
Covid testing prior to surgery
All normal VUMC safety practices
Limiting numbers in support groups
Requiring masking
Telehealth = increased access to care!  For many this was
previously an obstacle.  Now, it is a standard way we can
schedule and provide care. Normally patients just need to be
somewhere within TN borders to receive care from providers in
our clinic.
 
Covid Impact
 
Currently, weight loss interventions – through medical or surgical
means - may be more conservative than typical. 
2
COVID-19 stress and restrictions have been associated with more
conservative weight outcomes and higher than typically reported
disordered eating.
2
Those who have received a transplant and those who have had
WLS may be particularly susceptible populations.
 
J.P. Almandoz, L. Xie, J.N. Schellinger, 
et al.
Impact of COVID-19 stay-at-home orders on
weight-related behaviours among patients with obesity. 
Clin Obes, 10 (5) (2020),
Article e12386.
undefined
 
VUMC WEIGHT
LOSS CLINIC
LOCATIONS
 
 
VUMC Weight Loss Clinic
Locations
 
Vanderbilt Weight Loss Center
Vanderbilt Health One Hundred Oaks
719 Thompson Lane, Suite 22200
Nashville, TN 37204
 
Vanderbilt Weight Loss Center
Clarksville
800 Weatherly Drive, Suite 201
Clarksville, TN 37043
 
Vanderbilt Surgical Weight Loss
Jackson
37 Sandstone Circle
Jackson, TN 38305
 
 
Vanderbilt Weight Loss Center Lebanon
1616 West Main Street, Suite 300
Lebanon, TN 37087
 
Vanderbilt Surgical Weight Loss
Murfreesboro
1272 Garrison Drive, Suite 309
Murfreesboro, TN 37129
 
 
Call (615) 322-6000 for more information
or visit
https://www.vanderbilthealth.com/pro
gram/surgical-weight-loss
 
Summary
 
 
Utilization of weight loss surgery for patients who battle obesity and
who are also pre or post-op from transplant, can dramatically
IMPROVE health, reduce future health complications and
comorbidities, and dramatically increase quality of life!
undefined
 
THANK YOU!
 
Slide Note

Hello. My name is Jennifer Williams, and I’m one of the surgical weight loss dietitians at the Vanderbilt Weight Loss Center. Today I’ll be discussing bariatrics and pre/post transplant obesity from a nutrition perspective.

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Delve into the world of bariatrics and pre/post-transplant obesity with insights on medical weight loss, reasons for bariatric surgery, types of bariatric surgery at VUMC, eligibility criteria for transplant, and the impact of nutrition factors and COVID-19. Learn about specialized medical weight interventions, genetic testing, and the effectiveness of medical weight loss programs in treating high-risk obesity. Discover the reasons for bariatric surgery, including failed weight loss attempts and declining quality of life, and explore the VUMC bariatric surgery options offered.


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  1. Bariatrics and Pre/Post Transplant Obesity Jennifer Williams, MPH, RD, CSOWM, LDN Surgical Weight Loss Dietitian October 19, 2021

  2. Agenda Medical Weight Loss Reasons for Bariatric Surgery Types of Bariatric Surgery at VUMC Eligibility/Exclusion Parameters for Transplant Health Benefits - Before & After Nutrition Factors Covid-19 Impact VUMC Surgical Weight Loss Locations

  3. MEDICAL WEIGHT LOSS When pts desire lifestyle intervention and/or the medication route or when BMI does not qualify for bariatric surgery.

  4. Medical Weight Loss Nutrition, lifestyle, and medication Can be explored first, before bariatric surgery Genetic and metabolic testing Pharmaceutical intervention Providers (MDs, NPs, RDs) in MWL loss see ~ 25 patients/year (2020)* for liver transplant alone. *2021 data is currently being analyzed* We know that Specialized medical weight intervention is effective in treating high-risk obesity with complications. Srivastava recently published a retrospective weight loss study should where approximately 50% of [medical weight loss patients reviewed] were able to achieve > 7% weight loss [over the course of 6 months].1 1. Srivastava G, Paris,C, Johnson J, et al. Specialized medical weight management intervention for high-risk obesity. JHEOR. 2021; 8 (2) 1 5. doi:10.36469/jheor.2021.24896

  5. REASONS FOR BARIATRIC SURGERY

  6. Reasons for Bariatric Surgery Obesity, as defined by a BMI > 35 with co-morbidities (DM, HTN, OSA, etc) or BMI > 40 without co-morbidities Multiple failed diet attempts Failed weight loss medication attempts Declining quality of life Co-morbidities directly related to excess weight

  7. TYPES OF BARIATRIC SURGERY AT VUMC

  8. VUMC Bariatric Surgery Options Currently Offered: Roux-en-Y Gastric Bypass (RYGB) Vertical Sleeve Gastrectomy (VSG)* No Longer Offered: Adjustable gastric banding the lap band (AGB) * VSG is typically what is completed on transplant patients, due to concerns with medication absorption.

  9. ELIGIBILITY/ EXCLUSION PARAMETERS FOR TRANSPLANT PTS

  10. General Eligibility All VUMC transplant patient referrals for surgical weight loss are sent to the Vanderbilt Weight Loss Clinic s program coordinator Wendy Tarpley, RN, BSN. There are no exclusions related to solid transplant need at this time. Per Wendy, there is no exclusion for transplant patients because more patients are having the sleeve* to qualify for transplant surgery (BMI must be less than 40).

  11. Eligibility - Steps Pts are screened and then start on the surgical pathway. Surgical consult with MD Telehealth Group Nutrition Education Class (60 minutes) with a Registered Dietitian to teach through nutrition changes required of those choosing Bariatric Surgery - Bariatric Nutrition Guide 1:1 Nutrition Assessment with a RD (1 month after education class) evaluation of progress on nutrition changes Additional Nutrition Reassessment(s) - as clinically required by RD or due to insurance Support Group Attendance Psych Eval Labs, medical clearance, etc.

  12. Eligibility & Follow Through Approximately 7 out of every 10 transplant patient referrals to our surgical weight loss program unfortunately NEVER follow through with the initial consult with the surgeon. - Wendy Tarpley, RN, BSN Bariatric Program Coordinator

  13. HEALTH BENEFITS BEFORE & AFTER

  14. Bariatric Surgery BEFORE When bariatric surgery is initiated before transplant, many risk factors are reduced: Improved glycemic control, reduction or elimination of DM meds, resolution of DM at times Dramatic improvement in BP, discontinuation/reduction in HTN meds Improved mobility Potential ability to halt/delay disease progression, so as to prevent transplant need or how soon a transplant would be required depending on disease state Reduced weight (BMI of < 40), so that surgeon can proceed safely with transplant Improved energy Often, bariatric surgery requirements result in a healthier diet that leads to a more well nourished pt.

  15. Bariatric Surgery AFTER Most studies support waiting a minimum of 1 year AFTER transplant surgery for bariatric surgery to take place, when needed due to obesity. Assistance in achieving a weight that taxes the body less, helping organs to last longer Continued assistance in delaying other disease progressions, co- morbidities All the same benefits as BEFORE - improvement in overall health and quality of life!

  16. SWL - Weight Loss Percentages VSG generally produces a weight loss of 50 60% of excess weight* RYGB generally produces a weight loss of 60 75% of excess weight Weight loss can certainly exceed these levels, but this is what is typical. *Excess weight is defined as the difference between the patient s current weight and the weight that places the patient at a BMI of 25.

  17. NUTRITION FACTORS

  18. Nutrition Macronutrients & micronutrients are monitored through diet recalls with RDs and nutrition labs (week 1 and then months 1, 3, 6, 12, 18 and once a year at 2 years postop bariatric surgery and beyond) The RDs in the weight loss clinics provide guidance, deferring to renal or other specialty providers, as appropriate, to ensure appropriate nourishment with the following: Protein Calories Fat Carbohydrate Fluid & Electrolytes Vitamins and Minerals

  19. Nutrition - Overview Protein Higher % generally (ASMBS guidelines: 60 80 grams/day) Mindful of kidney function (late staged disease/dialysis) protein is modified as appropriate. Calories Initially low at approximately 500/day for first 3 months after WLS; maintenance generally 1000 1200 for women, 1200 1400/1500 for men Fat Typically roughly 30 - 35%, depending on disease state/conditions

  20. Nutrition - Overview Carbohydrate The most variable of the macronutrients, generally fairly low, but may represent up to 40% longer term. Fluid & Electrolytes Normally liberal (> 64 oz+), unless restrictions r/t CHF, dialysis, etc. Limited caffeine (limited to 1 2 cups/day of coffee or equivalent) Electrolytes - levels are monitored by labs and based on s/sx after WLS Vitamins and Minerals Levels are monitored by labs ASMBS compliant supplements are recommended, unless otherwise needed

  21. LONG TERM IMPLICATIONS & CHALLENGES

  22. Potential Long Term Challenges Dumping syndrome Hypoglycemia Malnutrition Ulcers Bowel obstruction/ blockages Transference of addiction (ETOH, exercise, etc)

  23. COVID-19 IMPACT

  24. Covid Impact Internal clinical focus has shifted to safety precautions, telehealth, & additional measures Covid testing prior to surgery All normal VUMC safety practices Limiting numbers in support groups Requiring masking Telehealth = increased access to care! For many this was previously an obstacle. Now, it is a standard way we can schedule and provide care. Normally patients just need to be somewhere within TN borders to receive care from providers in our clinic.

  25. Covid Impact Currently, weight loss interventions through medical or surgical means - may be more conservative than typical. 2 COVID-19 stress and restrictions have been associated with more conservative weight outcomes and higher than typically reported disordered eating.2 Those who have received a transplant and those who have had WLS may be particularly susceptible populations. J.P. Almandoz, L. Xie, J.N. Schellinger, et al.Impact of COVID-19 stay-at-home orders on weight-related behaviours among patients with obesity. Clin Obes, 10 (5) (2020), Article e12386.

  26. VUMC WEIGHT LOSS CLINIC LOCATIONS

  27. VUMC Weight Loss Clinic Locations Vanderbilt Weight Loss Center Vanderbilt Health One Hundred Oaks 719 Thompson Lane, Suite 22200 Nashville, TN 37204 Vanderbilt Weight Loss Center Lebanon 1616 West Main Street, Suite 300 Lebanon, TN 37087 Vanderbilt Surgical Weight Loss Murfreesboro 1272 Garrison Drive, Suite 309 Murfreesboro, TN 37129 Vanderbilt Weight Loss Center Clarksville 800 Weatherly Drive, Suite 201 Clarksville, TN 37043 Call (615) 322-6000 for more information or visit https://www.vanderbilthealth.com/pro gram/surgical-weight-loss Vanderbilt Surgical Weight Loss Jackson 37 Sandstone Circle Jackson, TN 38305

  28. Summary Utilization of weight loss surgery for patients who battle obesity and who are also pre or post-op from transplant, can dramatically IMPROVE health, reduce future health complications and comorbidities, and dramatically increase quality of life!

  29. THANK YOU!

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