Improving Patient Centered Outcomes in Pancreatic Cancer (Text Version)
On September 19, 2011, A.J Moser and Herbert Zeh made this presentation at the 2011 Annual Conference. Select to access the PowerPoint® presentation (9 MB). Plugin Software Help.
Slide 1
Improving Patient Centered Outcomes in Pancreatic Cancer
A. James Moser, MD
Herbert J. Zeh, III, MD
Co-Directors, UPMC Pancreatic Cancer Center
Division of Surgical Oncology
University of Pittsburgh School of Medicine (UPMC)
Slide 2
Improving Patient Centered Outcomes in Pancreatic Surgery
- Develop "personalized" surgical treatment:
- Modeling of outcomes.
- Theranostics.
- Re-thinking clinical trial design.
- Explore minimally invasive approach to pancreatic surgery program.
Slide 3
Patient Centered Outcomes in Pancreatic Surgery
- Reduced perioperative morbidity.
- Maintain quality of life.
- Decreased peri-operative blood loss and transfusion.
- Increased rate of adjuvant therapy.
Slide 4
Why develop a minimally invasive approach to Pancreas?
- Pancreatic cancer remains dormant for 10-12 years before clinically detectable?
- Early detection may allow less invasive surgery to be curative?
Image of a journal article title and a figure from the article.
Slide 5
Why develop a minimally invasive approach to Pancreas?
- "Prophylactic" pancreatectomy:
- IPMN = polyp of the pancreas.
Images: Polyps of the pancreas are shown.
Slide 6
Laparoscopic PD
- Adequate for ablative surgery.
- For procedures requiring extensive reconstruction the technique is modified to meet the technological limitations.
- Poor ergonomics for the surgeon.
- Limited range of motion of instruments.
- Two dimensional!
- Wouldn't do open surgery with one eye.
Slide 7
Robotic Pancreas Resections
- Advantages of Robotic Surgery:
- Magnification 20x-30x.
- Near 360 degrees range of motion in instruments.
- Elimination of tremor / improved dexterity.
- Stereotactic binocular vision—it's 3D like Avatar!
Slide 8
Goals of Robotic Pancreas Program at UPMC
- Major objectives:
- Reproduce open technique and outcomes.
- Widely applicable.
- Quality Assurance.
- Rule out Disadvantages:
- Equivalent safety?
- Learning curve and time investment.
- Explore Potential Advantages:
- Decrease peri-operative morbidity/blood transfusions.
- Earlier adjuvant chemotherapy.
Slide 9
UPMC Robotic Pancreas Program
9/17/2011
Flowchart showing breakdown of studies.
N=195
- RAPD N=85.
- RACP N=43.
- RATP N=5.
- RADP N=60.
- RAF N=2.
Slide 10
Robot-Assisted Minimally-Invasive Distal Pancreatectomy Is Superior to the Laparoscopic Technique
Slide 11
Methods
- Retrospective analysis of all minimally-invasive distal pancreatectomies at UPMC between January 2004 and February 2011.
- Compared the peri-operative outcomes of our first 30 RADP to 94 consecutive historical control LDP.
Slide 12
Table 1. Outcomes Following Laparoscopic and Robotic-assisted Distal Pancreatectomy
| Characteristics | Laporoscopic | Robotic-assisted | p-value |
|---|---|---|---|
| N | 94 | 30 | |
| Age (years) | 59±16 | 59±13 | 0.95 |
| Female Gender | 61 (65%) | 20 (67%) | 0.86 |
| Caucasian | 91 (97%) | 26 (87%) | 0.058 |
| BMI (kg/m2) | 29.0±7.1 | 27.9±5.1 | 0.434 |
| ASA Score | 0.8 | ||
| I/II | 42 (45%) | 11 (37%) | 0.41 |
| III/IV | 51 (55%) | 19 (63%) | 0.41 |
| Previous abdominal surgery | 48 (51%) | 22 (73%) | <0.05 |
| CT tumor size (cm) | 2.9±1.9 | 2.6±1.4 | 0.45 |
| Endoscopic ultrasound size (cm) | 2.6±1.6 | 2.7±1.3 | 0.985 |
Values represent mean ±SD, or n (%)
Slide 13
Table 2. Pathologic Indications for Distal Pancreatectomy
| Final Histology | Laporoscopic n=94 | Robotic-assisted n=30 | p-value |
|---|---|---|---|
| Pancreatic duodenal adenocarcinoma | 14 (15%) | 13 (43%) | <0.05 |
| Mucinous cystic neoplasm | 30 (31%) | 4 (13%) | <0.05 |
| Neuroendocrine tumor | 21 (22%) | 9 (27%) | 0.46 |
| Intraductal papillary mucinous neoplasm | 11 (12%) | 5 (17%) | 0.534 |
| Solid pseudopapillary neoplasm | 6 (6.4%) | _ | 0.33 |
| Other | 12 (13%) § | 1 (3) †† | 0.184 |
§ Includes autoimmune pancreatitis (n=2), chronic pancreatitis (n=1), serous cystadenoma (n=3), pseudocyst (n=1), mucinous cystadenocarcinoma (n=1), spindle cell lesion, (n=1), benign epithelial cyst (n=2) and oligocystic adenoma (n=1).
†† Includes lymphoepithelial cyst (n=1)
Slide 14
Table 3. Perioperative Outcomes Following Laparoscopic and Robotic-assisted Distal Pancreatectomy
| Outcome Parameter | LDP N=94 | RADP N=30 | p-value |
|---|---|---|---|
| Procedure duration (min ± SD) | 372±141 | 293±93 | <0.01* |
| Planned splenectomy | 77 (82) | 28 (93%) | 0.157 |
| Estimated blood loss (ml) | 150 (100, 300) | 150 (100, 300) | 0.688 |
| Frequency of blood transfusion (%) | 2.25±1.36 | 2.33±0.58 | 0.921 |
| Median EBL (ml) in upper quartile (>75th percentile for blood loss) | 550 (400, 650) | 375 (300, 550) | <0.05 |
| Converted to open | 15 (16) | 0 (0%) | <0.05* |
| Postoperative admission to ICU | 31 (33) | 7 (23) | 0.370 |
| Pancreatic fistula | 39 (41) | 14 (46) | 0.676 |
| ISGPF Grade A | 23 (24) | 6 (20) | NS |
| ISGPF Grade B | 11 (12) | 4 (13) | NS |
| ISGPF Grade C | 5 (5) | 4 (13) | NS |
| 90-day morbidity | 0.658 | ||
| Minor (Clavien 1/2)¥ | 47 (50) | 14 (46) | |
| Major (Clavien 3/4)¥ | 13 (14) | 6 (20) | |
| Length of stay, days | 7.1±4.0 | 6.1±1.7 | 0.183 |
| 90-day readmission | 22 (23) | 11 (37) | 0.162 |
| 30-day mortality | 1 (1.1) | 0 (0%) | 1.0 |
Normally-distributed values are expressed as mean ± SD or n (%); otherwise median (25th, 75th percentile) as interquartile range (IQ).
¥Clavien classification of surgical complications.16
Slide 15
Table 5. Effects of Conversion During LDP on Perioperative Outcome
| Characteristics | Converted LDP N=15 | Completed LDP N=79 | p-value |
|---|---|---|---|
| Age | 54 (46, 69) | 62 (51, 72) | 0.206 |
| Gender (F) | 9 (60) | 76 (65.82) | 0.770 |
| BMI | 28 (27.4, 33) | 27 (24.5, 32.9) | 0.474 |
| ASA (III/IV) | 8 (53) | 43 (55) | 1.00 |
| OR duration | 345 (268, 593) | 341 (250, 452) | 0.557 |
| Splenectomy | 15 (100) | 62 (79) | 0.065 |
| EBL | 425 (300, 700) | 150 (100, 300) | <0.001* |
| Frequency of blood transfusion | 4 (27) | 8 (10) | 0.096 |
| Pancreatic ductal adenocarcinoma | 6 (40.0) | 8 (10.13) | <0.01* |
| Tumor size (cm) | 4 (3.5, 4.5) | 3 (2, 4) | 0.3 |
| R0 Margin status (PDA only) | 3 (50.0) | 4 (50.0) | 1 |
| Lymph nodes harvested (PDA) | 9 (7, 11) | 17 (10, 19) | 0.845 |
| ICU admission, days | 8 (53.33) | 23 (29.11) | 0.079 |
| Pancreatic fistula | 7 (46.67) | 32 (41.03) | 0.778 |
| Length hospital stay, days | 8 (6, 10) | 6 (5, 7) | <0.01* |
Normally-distributed values are expressed as mean ± SD or n (%); otherwise median (25th, 75th percentile) as interquartile range (IQ).
Slide 16
Table 4. Pathologic Outcomes Following Distal Pancreatectomy for Pancreatic Ductal Adenocarcinoma
| Characteristic | LDP | RADP | p-value |
|---|---|---|---|
| Frequency (n, %) | 14 (19) | 13 (43) | <0.005* |
| Tumor size (cm) | 3.4±1.6 | 3.1±1.2 | 0.604 |
| R1 margin status | 7 (50) | 0 (0) | <0.01* |
| Nodal harvest (median, IQR) | 9 (7, 11) | 19 (17, 24) | <0.01* |
Normally-distributed values are expressed as mean ± SD or n (%); otherwise median (25th, 75th percentile) as interquartile range (IQ).
Slide 17
Comparison of Robotic (RADP) and Laparoscopic (LDP) Approach to Distal Pancreatectomy
- Robotic assisted minimally invasive distal pancreatic resection appears comparable to laparoscopic approach in safety and feasibility.
- RADP was associated with decreased frequency of conversion to open, increased number of total Lymph node harvested, higher rate of R0 resections and decreased significant blood loss.
- These data suggest that use of the Robotic Platform may allow more patients to successfully undergo minimally invasive distal pancreatectomy.
- Larger multicenter studies are needed to validate these findings.
Slide 18
UPMC Robotic Pancreas Program
9/17/2011
Repeat of Slide 9.
Slide 19
Image: Titles and authors for two articles on robot-assisted pancreative resection and reconstruction are shown.
Slide 20
Table 1: Demographics of Entire RAPD Cohort
| Parameter | Outcome |
|---|---|
| Age, mean ±SD (range) | 68±16 (27-85) |
| Gender Female | 26 (52%) |
| Prior surgery | 29 (58%) |
| BMI, mean ±SD (range) | 27±5 (19-37) |
| Medical Comorbidities | |
| Multiple Major | 11 (22%) |
| Major | 17 (34%) |
| Minor | 2 (4%) |
| None | 20 (40%) |
| ASA Score | |
| II | 21 (42%) |
| III | 28 (56%) |
| IV | 1 (2%) |
Data are presented as mean ±SD, or n (%).
Slide 21
Table 2: Pathologic Indications for RAPD
Slide 22
Table 3: Perioperative Outcomes of RAPD Cohort
| Parameter | Outcome |
|---|---|
| Procedure duration (min), median (IQR) | 568 (536-629) |
| Converted to open | 8 (16%) |
| Blood loss (mL), median (IQR) | 350 (150-625) |
| Blood transfusion | 11 (22%) |
| Pancreatic duct (mm), median (IQR) | 3.0 (3.0-5.0) |
| Soft pancreatic remnant | 36 (72%) |
| Length of stay (d), median (IQR) | 10.0 (8.0-13.0) |
Slide 23
Table 4: Pathologic Outcomes Following RAPD for Invasive Periampullary Adenocarcinoma
| Characteristics | PDA, Amp, CCA |
|---|---|
| N (%) | 25 (50%) |
| TNM* (n=25) | |
| T1N0 | 2 (8%) |
| T2N0 | 4 (16%) |
| T3N0 | 6 (24%) |
| T3N1 | 10 (40%) |
| T4N1 | 2 (8%) |
| AJCC Stage | |
| 1A | 2 (8%) |
| 1B | 4 (16%) |
| IIA | 6 (24%) |
| IIB | 13 (52%) |
| Tumor size (cm) | 2.7 cm, IQR 0.7 |
| Lymph nodes harvested | 18, IQR 5 |
| R0 margin | 33 (89%) |
| R1 margin | 4 (11%) |
| Adjuvant tx indicated (n=15) | 11 (73.3) |
| Adjuvant tx duration (wks) | 11.5 (8.8-12.5) |
Data presented as median (IQR) or n (%) for PDA, AMP, and CCA only.
Slide 24
Table 5: Postoperative Complications Following RAPD
| Parameter | Outcome |
|---|---|
| Pancreatic fistula | 11 (22%) |
| Grade A | 5 (10%) |
| Grade B | 2 (4%) |
| Grade C | 4 (8%) |
| 30-day morbidity | |
| Minor (Clavien I/II) | 13 (26%) |
| Major (Clavien III/IV) | 15 (30%) |
| Reoperation | 3 (6%) |
| 90-day readmission | 15 (30%) |
| 90-day mortality | 1 (2%) |
Slide 25
Conclusions:
- Robotic assisted Pancreatic resections are currently feasible and safe.
- Evolution of the technique will likely continue making comparative studies difficult.
- Multicenter collaborations necessary to study comparative effectiveness.
Slide 26
Minimally Invasive Pancreatic Surgery Consortium (MIPSC)
- Contributing Members:
- University of Pittsburgh.
- Mayo Clinic.
- Cleveland Clinic.
- Pisa Italy.
- Second Annual meeting November 2011.
- Goals:
- Multicenter prospective database.
- Standardization of procedures.
- Comparative effectiveness studies.
Slide 27
UPMC Pancreatic Cancer Program
Slide 28
RAPD Set Up
Images: Photographs of the RAPD equipment are shown.
Slide 29
Tying It All Together...
Slide 30
Case Presentation
- 76 y/o female symptomatic found to have elevated amylase and lipase after abdominal pain.
- CT main duct IPMN.
- Followed for several years.
- Recent EUS demonstrated increased in disease in head of gland.
Slide 31
Case Presentation
Image: MRI of a patient's abdomen are shown.
Slide 32
Case Presentation
Image: A photograph of the removed pancreas section is shown.
Slide 33
Case Presentation (continued)
IMPN of main duct:
- Uncomplicated Robotic Assisted Pancreaticoduoenectomy.
- Discharged POD #10.
- Final Pathology:
- IPMN with dysplasia.
Slide 34
Case Presentation: #2
- 72 y/o male abdominal pain three months, followed by jaundice.
- CT Large mass in the HOP:
- Loss of fat plane between mass and PV/SMV.
- EUS –:
- Loss of fat plane PV/SMV.
- ERCP:
- Double duct.
- Short metal stent.
- Cytology:
- Acinar Cell Carcinoma.
Slide 35
Image: An MRI of a patient's abdomen is shown.
Slide 36
Case Presentation : #2 (continued)
- Received six cycles of modified FOLFOX.
- Repeat Staging demonstrated partial response in tumor and no metastatic disease.
Slide 37
Image: An MRI of a patient's abdomen is shown.
Slide 38
Case Presentation: #2 (continued)
- Uncomplicated Robotic Assisted Pancreaticoduoenectomy.
- Discharged POD 5.
- Final Pathology:
- Acinar Cell Carcinoma with significant Rx effect.
- Negative margins.
Slide 39
Case Presentation: #2 (continued)
- Received additional three cycles of modified FOLFOX.
- Alive and disease free at 24 months.


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