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Bariatric Surgery Pre, Post and During LT
Kris V. Kowdley MD, FAASLDDirector, Liver Care Network and Organ Care Research
Swedish Medical CenterSeattle, WA
20-24.9%25-29.9%30-34.9%35+ %
Obesity rates: 9/21/15
• 3 states (AR,MS, WV) now have >35% of population with BMI>30
• 17% of children are obesehttp://stateofobesity.org/adult-obesity/
Rates of Obesity (BMI>30)
3
There is a growing societal burden of NAFLD
Lazo and Clark, Semin Liver Dis, 2008
NAFLD0
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(hospital discharges)
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yKoebnick et al, J Pediatr Gastroenterol Nutr.2009;48:597-603.
There is a growing demand for OLT due to NASH-related cirrhosis
What do the trends tell us?
Charlton et al, Gastroenterology. 2011 Oct;141(4):1249-53
Indication for listing for liver transplantation in US
7
Wong et al Gastro 2015; 148: 547-55.
Indication for liver transplantation: US
8
Data 2002-2014
Pham et al Clin Liver Dis 2016 20: 403–417
Liver Transplantation 2009
Impact of obesity on outcome:• SRTR data 1987-2007
• 68,172 BMI 18.5-40, 1827 <18.5, and 1,447>40.
• Outcome worse high and low BMI patients (similar to previous report Nair et al 2002)
• No correction for ascites, small number of patients in each of the “extreme” groups
Dick, Liver Transpl. 2009:15;968-77.
Long term outcomes: NASH
10
• SRTR data analysis of transplant for NASH 1997-2010
Afzali et al, 2012, Liver Transpl 18:29-37.
Impact of recurrent NASH on outcomes
Unadjusted Post-LT Survival: NASH
vs. Not NASH, non-HCV
88.9%
83.7%
81.9%
91.1%
86.7%
84.6%
Log rank p<0.001
Courtesy, Dr. Danielle Brandyman- UNOS data
0 5 0 0 1 0 0 0 1 5 0 0 2 0 0 0
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att
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Development of fatty liver disease after liver transplant for cryptogenic cirrhois
Contos et al, Liver Transplantation, 2001, 7: 363-373
0 5 0 0 1 0 0 0 1 5 0 0 2 0 0 0 2 5 0 0 3 0 0 0
0
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N A S H
P B C /P S C
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De novo NAFLD post OLT versus recurrence of NAFLD
Contos et al, Liver Transplantation, 2001, 7: 363-373
Aggressive recurrence of NASH post OLT
Perisinusoidal fibrosis
Masson’s trichrome
• Usually in type diabetics• Consider underlying partial
lipodystrophy• Cumulative steroid use
Operations for weight loss
Adjustable band
gastroplastyProximal gastric
bypass
Vertical banded
gastroplasty
Bariatric surgery proceduresRestrictive• Lap band: reversible, low rate of
serious complications. Less effective weight loss, and >50% failure rate at 10 years. ? Access to distal varices
• Gastric sleeve: slower weight loss, low rate of complications, appears durable (early). Not reversible. Preserves access to biliary tree and varices.
Restrictive +Malabsorptive
• Roux-en-Y Gastric bypass: gold standard. Effective, long-term weight loss. Serious complication rate 0.5-2%. No access to distal varices. ? Rapid weight loss
• Duodenal switch: rarely used, reserved for very severe obesity. Not appropriate for patients with
liver disease.
17
• N=1236, (681 RYGB, 555 lap band). Biopsy available for 97% at baseline, 69% at 5 years. NAFLD, but not cirrhosis.
• All patients had improvement of NAFLD parameters.
• Improvement superior for RYGB compared to lap band, even though RYGB had higher BMI and worse NAFLD at surgery.
Caiazzo et al Ann Surg. 2014; 260:893-99
Bariatric Surgery in Cirrhosis Mosko and Nguyen: CLINICAL GASTROENTEROLOGY AND HEPATOLOGY 2011;9:897–901
• Nationwide Inpatient Sample (NIS) between 1998 and 2007
• Patients identified as having bariatric surgery and compensated (n=3888); decompensated cirrhosis (n=62) or no cirrhosis (n=670,950).
• Diagnosis code of ascites or varices required to be classified as decompensated.
• In-hospital mortality 0.3% vs 0.9% and 16.3%, respectively; P <.0002). Higher in low volume centers (40%).
• LOS higher in cirrhosis: 3.2 and 4.4 d vs 6.7 d, respectively; P<.0001.
NASH: Surgical Approaches
NASH/Compensated cirrhosis
Goal attain >10% body weight loss to improve liver fibrosis,
metabolic complications
Consider lap sleeve gastrectomy (or LRYGB)
Decompensated cirrhosis
Transplant candidate?
Non-invasive attempt at weight loss (selected)
Sleeve gastrectomy (?during or after LT)
Lap. RYGB in patients with compensated cirrhosis Dallal et al. Obesity Surgery 2004;14:47-53
• Single center, retrospective review of 30 patients (of 2,119 total undergoing Lap RYGB) found to have cirrhosis (visual inspection– no biopsy).
• No deaths, no hepatic decompensation with mean f/u of 16 months (1-48 m).
• Conclude: possible in Child’s A, using lap. approach.
Bariatric surgery in patients with compensated Cirrhosis Shimizu et al Obesity Rel Dis (2013)9;1–6.
• Single center, retrospective, N=23, 2004-11, 22/23 “Child’s A”, 1 Child’s B, 2 with TIPS prior.
• LRYGB (14), LSG (8), lap band (1).
• Complications in 8 patients (leaks, strictures)
• 1 death at 9 months, no hepatic decompensation after surgery, 37 months f/u.
• Weight loss 67% of excess weight
• Conclude: LRYGB and LSG possible in Child’s A, and provides excellent weight loss.
Lap sleeve gastrectomy in patients with Cirrhosis Rebibo et al Obesity Rel Dis (2014)405-10
• Single center, 13 patients with Child’s A MELD 7-8 and LSG (2004-2013) matched 1:2 to non-cirrhotic LSG.
• No differences in perioperative complication rates (7.7 versus 7.7%), including major complications, no death, no hepatic decompensation.
• mean f/u of 24 months.
• Weight loss similar in both groups
• Conclude: LSG safe and effective in Child’s A,
Lap. Adjustable Band in patients with unexpected cirrhosis Woodford et al Obesity Surg (2015)1623-9
• N=14 patients, 1993-2014. Biopsied intra-operatively. No patients with
decompensation
• All underwent lap band.
• Complications in 2 patients (1 infection, 1 open re-op), no early deaths
• mean f/u of 64 months, 1 death from HCC.
• Weight loss 61% of excess weight at 1 year, then 39% at 5 years (mean BMI 38 to 32 to 34).
• Conclude: lap band safe in compensated cirrhosis
Bariatric Surgery in patients with cirrhosisPestana et al Mayo Clin. Proc. (2015)209-15.
• Single center, prospective, N=14, 2009-11. 4 had portal hypertension (1 with varices, 3 with portal hypertensive gastropathy). MELD 6-9.
• LSG (11), LRYGB (3).
• No surgical complications
• Weight loss 25% TBW at 1 year
• Conclude: bariatric surgery safe,
effective in compensated cirrhosis.
Bariatric surgery prior to TransplantTakata. Surg obes & Rel Dis 2008
• 6 ESLD (Childs A/B)– sleeve gastrectomy
– Excluded Grade 2+ varices, uncontrolled HE, ascites
– BMI>40
– Liver function remained stable,
– MS improved
– 24-40% excess weight lost
– 1 re-op for bleeding, 2 developed ascites, 1 re-admitted for encephalopathy. No deaths, no leaks
– Mean stay 4.2 days
– Mean follow-up 9 monthsTakata. Surg obes & Rel Dis 2008.
Sleeve gastrectomy prior to liver transplant
Lin et al, Surgery for Obesity and Related Diseases 9 (2013) 653–659
Rabl and Compos, Semin Liver Dis, 2012
Weight loss after bariatric surgery
Lin et al, Surgery for Obesity and Related Diseases 9 (2013) 653–659
• Option for selected patients who have not attained goal weight and have high enough MELD
• Gastric sleeve resection combined with liver transplantation
• No malabsorption, slower weight loss, technically easier
Heimbach et al AJT 2013
Combined LT and sleeve gastrectomy
• 37 non-invasive approach versus 7 combined sleeve with LT
• Since publication, 15 more patients (22 total), with 4 being liver+ kidney, and 1 re-transplant. NASH=18
31
characteristic N=37 LT N=7 LT+SG P-value
MELD at tx 19 (8-35) 32 (11-40) <0.001
O.R. time (mean) 4:21 (2:54-7:51) 4:59 (4:16-7:39) 0.59
Mean BMI at LT 33 (28-40) 48 (39-52) <0.001
% DM post LT 34% (12/35) 0% (0/7) 0.03
BMI at last f/u 36 (25-45) 28 (23-35 0.003
Noninvasive weight loss program
• The average BMI at enrollment was 40 kg/m2 (range 36–46)
• The mean BMI at transplant was 33 kg/m2 (range 30–37)
• There were three deaths in this group – severe porto-pulmonary hypertension – intraoperative bleeding– metastatic adenocarcinoma of unknown
primary at 2.5 months from transplantation
• three patients required retransplant(two for early graft dysfunction and one for chronic rejection).
• Remaining patients, 21 (60%) have a posttransplant BMI > 35 kg/m2,
• 35% of patients have posttransplantdiabetes mellitus
• 20% demonstrating steatosis on ultrasound
Am J Transplant 2013;13(2):363-368. ;
LT and Sleeve Gastrectomy
Combined LT and S. Gastrectomy
• 7 patients without weight loss• All seven patients alive with normal
allograft function• Significant weight loss (mean BMI =
28 kg/m2) • None of the patients currently
require insulin or oral hypo-glycemic treatment
• None of the patients has steatosis based on protocol ultrasound per-formed for all LT patients at 4 months and annually
• There was minimal additional operative time for LTSG patients
Weight loss: n=20 SG+LT
20
30
40
50
60
70
BMI attransplant
4 months 1 year 2 years 3 years 4 years 5 years
Mean BMI at TX=45, mean BMI at f/u=313 patients with BMI>35 at 3 year follow-up.
Post LT bariatric surgery• Lin et al: Lap gastric sleeve post LT n=9 patients
• Mean time from transplant 5.9 years, age=56, BMI=41,
• Mean f/u 6 months
• 3 patients required re-op in first 30 days: 1 conversion to RYGB, 1 bile leak, 1 dehiscence of concurrent hernia repair
Lin Surg Endo 2013: 27;81-85
Post LT bariatric surgery• Al-Nowaliti et al: open RYGB post LT n=7 patients
• Mean time from transplant 2.6 years, age=56, BMI=44, OR time 165 minutes (lysisof adhesions), hospital stay 5.6 days
• Mean f/u 5 years
• 2 patients died in first 1 year, and 1 reversal
36
Key Concepts: LT and SG• Standardized approach: specific nutritional,
activity, and weight loss goals
• Weight distribution/ascites important for technical considerations
• Close follow up (reflux excess weight loss, re-gain)
Issues after transplant in patients with a combined sleeve plus LT
• Reflux: twice daily PPI, Carafate
• Excessive weight loss: close follow-up, nutritional counseling, supplements, micronutrient replacement. Especially problematic in those with renal insufficiency.
• Early satiety: much more predominant in LT plus sleeve patients, versus sleeve alone. Eventually resolves.
• Weight re-gain
38
Bariatric surgery in Decompensated Cirrhosis
• Before transplant : not an option for patients with Child’s B/C cirrhosis
• An option to consider:
– After transplant
– Concurrent with transplantation
39
Acknowledgements: Dr. Julie Heimbach, Mayo Clinic, Dr. Arun Sanyal, VCU