barcelona meeting hospital universitari de bellvitge · new procedures… gastric volume reduction...
TRANSCRIPT
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Metabolic Surgery
BARCELONA MEETING
Hospital Universitari de Bellvitge
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INNOVATIONS IN SURGICAL APPROACHES AND DEVICES
Almino Cardoso Ramos
Metabolic Surgery
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0
50
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2000 2010 2025
2000
2010
2025
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Current Treatment Strategy for T2DM
Diet
Lifestyle modifications
Medical therapy
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Aggressive Medical Treatment of T2DM “Polypharmacy”
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0
10
20
30
40
50
60
HbA1c Level <7% BP <130/80 mmHg Total Cholesterol Level
<200 mg/dL (5.18 mmol/L)
Good Control
Ad
ult
s,
%
NHANES III (n = 1204) NHANES 1999-2000 (n = 370)
7.3%
Vascular Disease Risk Factors
Most of DM patients are not under control !!!
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Risk Factors
(Obesity)
Impaired glucose tolerance
Diagnosis
3 years of
DM 2
9 years of DM 2
Uncontrolled
Hyperglicemia
Lifestyle
Monotherapy
Combined
Insulin
Decreased beta
cell function
50% 10%
HbA1c=<7,7% or
FPG= 180mm/dl
HbA1c=8,5% or
FPG=>240mm/dl
Disease
Progression
100%
NATURAL HISTORY OF T2DM CHRONIC & PROGRESSIVE
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Weight and Type 2 Diabetes after Bariatric Surgery:
Systematic Review and Meta-analysis
Henry Buchwald, MD, PhD,a Rhonda Estok, RN, BSN,b Kyle Fahrbach, PhD,b Deirdre Banel, BA,b
Michael D. Jensen, MD,c Walter J. Pories, MD,d John P. Bantle, MD,e Isabella Sledge, MD, MPHb
1990-2006; 19 studies, 4070 diabetic patients
The American Journal of Medicine, Vol 122, No 3, March 2009
Control + Improvement: 95%
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BMI < 35 ?
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Metabolic Surgery
Buchald and Varco - 1978: The surgical handling of a normal organ or system to achieve a biological result of health improvement Any anatomic change(s) in digestive tract that improves metabolic conditions
• T2DM • HBP Metabolic Syndrome • Dislipidemia
METABOLIC SURGERY
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Morbid Obesity
Diabetes
Dyslipidemia
Hypercoagulation
Proinflamatory
Hypertension
Sleeping Apnea
Hepatic Steatosis
Atherosclerosis and CV Complications
TNF,IL, PCR Adiponectine
Fibrinogen
Triglycerídes HDL
Hyperglycemia
Hypertension
Sleeping Apnea
Lipids in the liver and Lipids in the muscles
Metabolic Surgery
Remission of the Metabolic Syndrome Atherosclerosis and CV complications
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How does surgery improve T2DM?
Diet - Caloric Restriction
Weight loss
Reduction of fat cell mass
Incretin effect
Bile absortion
Bioma changes
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NEW PROCEDURES…
Gastric volume reduction procedures
Duodenal-jejunal exclusion
procedures - devices
Ileal “stimulation” procedures
Electrical stimulation
METABOLIC SURGERY
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Metabolic Surgery
New procedures…
Gastric volume reduction procedures
METABOLIC SURGERY
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Endoscopic Endolumenal
Temporary – 6m
Effective weight loss of 10-15% (TBW)
Gastro Obeso Center (non-published)
12pt 30-35 BMI with non controlled T2DM
6 on insulin
• All had improved during treatment…
INTRAGASTRIC BALLOON T2DM TREATMENT
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SLEEVE GASTRECTOMY T2DM TREATMENT
12m prospective study n 91 severely obese T2DM SG (SG; n = 39 / GBP; n = 52), matched for DM duration, type of DM treatment, and glycemic
Results
Similar weight (%EBL: SG: 63.00 ± 2.89%, BPG: 66.06 ± 2.34%; p = 0.413)
T2DM resolution of 33 out of 39 (84.6%) for SG
T2DM resolution of 44 out of 52 (84.6%) for GBP (p = 0.618).
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GASTRIC ELECTRICAL STIMULATION T2DM TREATMENT
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GASTRIC VOLUME REDUCTION
CLINICAL DATA – CRITICAL ANALYSIS
Sleeve gastrectomy is growing as metabolic surgery No long term follow up Looks an easy procedure – no anastomosis No mal absortion Good safety profile when compared with RYGB Good initial results
Endoscopic approaches - Balloons Very safety profile when compared with RYGB > 85% T2DM control Temporary – beginning with 1 and 2ys balloons Expensive – Half a price of RYGB Clinical use in LA, EU and Asia
Electrical Stimulation Very safety profile when compared with RYGB Very expensive – doble in comparison with surgery Experimental procedure Starting studies about ileal electrical stimulation
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Metabolic Surgery
New procedures…
Duodenal-jejunal exclusion procedures
METABOLIC SURGERY
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Mechanisms of action
Hormonal
“Foregut”
• Duodenal exclusion
• Proximal bowel bypass
DUODENAL-JEJUNAL EXCLUSION
CONCEPT –EXPERIMENTAL
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50 cm 30 cm
2007 N=27
DUODENAL-JEJUNAL EXCLUSION
CLINICAL DATA
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100 cm 200 cm
May 2008 N=20
DUODENAL-JEJUNAL EXCLUSION
CLINICAL DATA
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100 cm 50 cm
May 2008 N=20
DUODENAL-JEJUNAL EXCLUSION
CLINICAL DATA
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DUODENAL-JEJUNAL EXCLUSION
AND ILEAL “STIMULATION”
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DUODENAL-JEJUNAL EXCLUSION
CLINICAL DATA – CRITICAL ANALYSIS
Keeps stomach intact
Good safety profile When compared with RYGB as golden standard
Very good initial results > 80% T2DM resolution
Poor results on long term follow-up 6-12 ms > 60% T2DM recidivism
Actual data Experimental procedure
Almost no clinical use
Adding a sleeve gastrectomy make the procedure works!
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DUODENAL-JEJUNAL EXCLUSION
CLINICAL DATA – CRITICAL ANALYSIS
Sleeve Gastrectomy + Duodenal Jejunal Bypass
Cohen – 2010
First 50 pts @ 18 mo Follow up (27 insulin users
Mean preop BMI = 28.9
TBWL 6.8% +- 3.7%
100 % between Control &Resolution
8 ( 16 %) pts with A1c less than 6
Follow-up Mean A1c Insulin Unchanged Control,A1c<7
Less meds
Resolution No
meds,A1c<7
18 mo 6.2+-0.5* NONE 0 - NO 32%(16 pts) 68%(34 pts)
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Metabolic Surgery
New procedures…
Duodenal-jejunal exclusion device
METABOLIC SURGERY
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The EndoBarrier Gastrointestinal Liner
• Impermeable liner
• Anchored in the duodenum, 60 cm long
• Endoscopically placed and removed
• Provides a duodenal-jejunal exclusion
• T2DM and weight loss studied
• Over 500 patients since 2005
• CE mark with clinical use in EU
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The EndoBarrier Gastrointestinal Liner
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The EndoBarrier Gastrointestinal Liner
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The EndoBarrier Gastrointestinal Liner
Rodriguez MD, Ramos A , Galvao Neto M et al.
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The EndoBarrier Gastrointestinal Liner
Moura EGH PhD, Ramos A , Galvao Neto M et al.
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100
150
200
250
300
350
0 30 60 90 120
Po
st-
Pra
nd
ial G
luco
se
(m
g/d
L)
Elapsed Time (minutes)
100
150
200
250
300
350
0 30 60 90 120 P
os
t-P
ran
dia
l G
luc
os
e (
mg
/dL
)
Elapsed Time (minutes)
Sham Subjects EndoBarrier Subjects
Data Presented at ADA Annual Meeting, June 2008
Baseline, n=12
Week 1, n=12 Baseline, n=6
Week 1, n=6
AUC decreased by 19.1% at Week 1 AUC increased by 10.8% at Week 1
p=0.014
The EndoBarrier Gastrointestinal Liner
Rodriguez MD, Ramos A , Galvao Neto M et al.
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N=9 N=4 N=4 N=8
Baseline %HbA1c= 9.2 for EndoBarrier and 9.0 for Sham
Data Presented at ADA Annual Meeting, June 2008
-1,3
-2,4
-0,7 -0,8
-3,5
-3,0
-2,5
-2,0
-1,5
-1,0
-0,5
0,0
Ch
an
ge in
(%
) H
bA
1c
EndoBarrier Subjects
Sham Subjects
Week 12 Last Visit
(28 weeks, mean)
N=8 N=3 N=9 N=4
P>0.05
P>0.05
The EndoBarrier Gastrointestinal Liner
Rodriguez MD, Ramos A , Galvao Neto M et al.
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1 Year Data
1 Year Data
8.9%
6.6%
1 Year Data
Mean Implant duration
for all 22 subjects
Studied T2DM pts BMI 35 to 70
Moura EGH PhD, Ramos A , Galvao Neto M et al.
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Studied T2DM pts BMI 26 to 34.9 Cohen at all
0,0
1,0
2,0
3,0
4,0
5,0
6,0
7,0
8,0
9,0
10,0
64,0
66,0
68,0
70,0
72,0
74,0
76,0
78,0
80,0
82,0
84,0
86,0
Baseline (n=19) Week 12 (n=18) Week 24 (n=18) Week 36 (n=14) Week 48 (n=5) Week 52 (n=3)
GI 08-2 Partial results
Weight - average (kg)
Cohen R PhD, Galvao Neto M et al.
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The EndoBarrier Gastrointestinal Liner
Verban F. J, MD, Greeve J., PhD et al.
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DUODENAL-JEJUNAL EXCLUSION DEVICE
CLINICAL DATA – CRITICAL ANALYSIS
Endoscopic - Endolumenal – “simple” Temporary – 1y Clinical use in LA (Chile) and EU(CE Mark) Good safety profile Good T2DM control
> 85% control or improvement
Can be repeated (on-going study) Patients with difficult control on CM May become a “pre-op” test Actual data
Promising results Initial clinical use Trying to get to 2y
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Metabolic Surgery
New procedures…
Ileal “stimulation” procedures
METABOLIC SURGERY
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Mechanisms of action
Hormonal
“Hindgut”
• Early ileal stimulation
• “Ileal break”
ILEAL “STIMULATION” PROCEDURES
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ILEAL “STIMULATION” PROCEDURES
ILEAL INTERPOSITION
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ILEAL “STIMULATION” PROCEDURES
DIGESTIVE “BI-PARTITION
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ILEAL “STIMULATION” PROCEDURES
CLINICAL DATA – CRITICAL ANALYSIS
Much more complex and difficult procedures
Less safety profile
When compared with RYGB as golden standard
Very good initial results
> 90% T2DM control
Good results on mid and long term follow-up
> 80% T2DM control
Actual data
Very few clinical use
Experimental
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Metabolic Surgery
Roux and Y gastric Bypass – RYGB
Gold standard
“Metabolic Bypass"
Gastric reduction
Duodenal-jejunal bypass
Ileal stimulation
METABOLIC BYPASS
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Gastric Pouch ?
Alimentary limb 150 cm Biliopancreatic limb 50 cm
Gastro-jejunostomy calibrated 12mm
N = 37 Obesity Surgery 2006
METABOLIC BYPASS
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Gastric Pouch 50 cm³
Alimentary limb 150 cm Biliopancreatic limb 100 cm
Gastro-jejunostomy not calibrate?
N= 27 Laparotomy - 17
Laparoscopy - 10 Obesity Surgery 2010
METABOLIC BYPASS
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Metabolic Bypass , initial experience with Roux-en-Y Gastric Bypass on type II diabetes treatment
Almino C Ramos, Manoel Galvao, Manuela Galvao, Andrey Carlo, Edwin Canseco, Thales D. Galvão, Luis F
Evangelista, Alvaro Ferraz e Josemberg L Campos São Paulo and Recife - Brasil
IFSO 2010
Gastric Pouch “double size”
Alimentary limb 100 – 200 cm Biliopancreatic limb 200 cm
Gastro-ileostomy not calibrate
IFSO 2010
METABOLIC BYPASS
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Gastric Pouch 25-30 cm³
Alimentary limb 150 cm Biliopancreatic limb 50 cm
Gastro-jejunostomy not calibrate
N=15 Obesity surgeryt 2009
METABOLIC BYPASS
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Obesity Surgery 2007 N=44
METABOLIC BYPASS
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METABOLIC BYPASS
CLINICAL DATA – CRITICAL ANALISIS
Standard bariatric procedure
Most promisor technique as metabolic surgery
Safety profile Is the standard to be compared with it
Mortality < 0.20%
Serious complications < 2.5%
MIP - laparoscopic
Very good results on mid and long term follow up
Actual data Most used procedure
Lot’s of studies looking for the changes for use in low BMI
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METABOLIC SURGERY RESULTS
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METABOLIC SURGERY RESULTS
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METABOLIC SURGERY RESULTS
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METABOLIC SURGERY RESULTS
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CONCLUSIONS
The great majority of studies of T2DM patients undergoing metabolic surgery corroborated the results of the animal researches previously reported regarding good postoperative glicemic control Metabolic surgery
Safe Effective in T2DM Reproducible Low complications
Metabolic surgery seems to be a therapeutic alternative to low BMI T2DM difficult control patients Gastric bypass is actually the preferred procedure Increase BP limb and decrease C limb Endoscopic procedures are coming The number of cases recommended to surgery are increasing When recommend MS in low BMI patients
METABOLIC SURGERY
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