Robotic Applications in Cardiac Surgery 2007
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ROBOTIC AND MINIMALLY INVASIVE APPLICATIONS IN
HEART SURGERY 2008Husam H Balkhy MDClinical Assistant ProfessorMedical College of WisconsinChairman Dept. of Cardiac SurgeryThe Wisconsin Heart Hospital
Critical Care Updates SeminarOct 2 2008
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“Patients don’t like sternotomies.”
Delos Cosgrove, M.D. Cleveland ClinicSTS 1996
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Minimally Invasive Heart Surgery ‐ Rationale
Decreased TraumaDecreased Blood LossDecreased Wound InfectionLess PainFaster RecoveryPatient Preference
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Valve Surgery Progression
Minimally Invasive Heart Surgery – 1996MIDCAB, OPCAB, Limited Access Valves
“Port Access” Valve Surgery – 2003MVR, AVR, ASD
Robotic Cardiac Surgery – 2006‐7MIDCAB –TECABMini MAZEMVR
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“Port Access” Technique
Heart Arrested, Bloodless fieldDirect Vision Direct Instrumentation
Tactile feedbackShafted instruments
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Direct lateral view of MV
LR
Posterior pericardial stay suture
Atrial retractor
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Conventional minimally invasivesurgery drawbacks—Surgeon operates from a 2D image
—Rib spreading
—Reduced dexterity, precision, control
—Greater surgeon fatigue
—Surgical assistance is limited
—How can we overcome these drawbacks?
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Robotic Applications in Cardiac Surgery
Mitral Valve Repair & ReplacementCABG (TECAB/ Robotic assisted MIDCAB)ASD RepairAtrial Fibrillation SurgeryEpicardial Lead PlacementPericardial SurgeryResection Mediastinal mass
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Robotic MVR
Approach more lateralLess Retraction to expose Mitral ValveLess Distortion of ValveView is better AND Incision is much smaller.
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Why Robotic?
What is the Difference?Improved visualization. 10x magnified, 3D.Improved instrument dexterity.Enhanced ability to do complex repairs.
Artificial cordsCord transfers
Move from “mini” thoracotomy to Totally Endoscopicprocedure.No Rib RetractorMinimal ICS Incision
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Valve Repair Surgery –Incisions
Sternotomy 20 – 25 CM Sternum Split
Port Access 6 – 8 CM Ribs Retracted
Robotic / Endoscopic
1 – 2.5 CM Between Ribs.No Rib Retraction.
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Robotic Mitral Valve repair
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InSite® Vision System
Surgeon immersed in 3D image of the surgical field
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The surgeon directs the instruments
Surgeon directs the instrument movements using Console controls
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Wrist and finger movement
Conventional minimally invasive instruments are rigid with no wrists
EndoWrist® Instrument tips move like a human wrist Allows increased dexterity and precision
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EndoWrist® Instruments fit through dime‐sized incisions
A wide range of instruments are available
Small instruments, small incisions
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Clinical Outcomes – Single Center Study*
*Murphy D, et al.: Endoscopic Robotic Mitral Valve Surgery; J Thorac Cardiovasc Surg 2006;132:776-81
Robotic Mitral Valve Surgery N=121
7
114
Repair
Replacement
(94.2%)
(5.8%
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MV Repairs vs. MV Replacements (STS Database)*
36
64
40
60
4654 49 51 51 49
2000 2001 2002 2003 2004
Repair vs Replacement (%)
Repair Replace
* data courtesy of Wiley L. Nifong M.D., East Carolina University 2006 (on file with Intuitive Surgical ©) & Society for Thoracic Surgeons & Duke Clinical Research Institute. Executive Summary. STS Spring 2005 Report
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Potential additional value of da Vinci® Mitral Valve Repair
High rate of successful, effective mitral valve repair1
The least invasive surgical treatment
Enhanced repair capability for complex mitral valve abnormalities
1) Murphy D, et al.: Lateral Endoscopic Approach to the Mitral Valve Using Robotic Instrumentation; JTCVS 2006 in press
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Robotic Valve Surgery ‐Conclusions
Offers several important advantages to minimally invasive cardiac surgeryDecreased Pain, LOS, Disability, Blood Transfusions, InfectionAs experience continues, OR times drop, and clamp times decrease, comparable to traditional approaches.
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How we can improve: Minimally Invasive CABG
Advantages:Avoid sternotomy
Improved cosmesisQuicker recovery
Reduced costsUse bilateral IMAs
Disadvantages:Limited exposure; more difficultMay require sternal incision 1 or 2 vessel disease
Intraop
Postop
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Sources of CABG Morbidity
SternotomyCardiopulmonary BypassAortic Manipulation
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Why Robotic?
Benefits of Robotic MIDCAB / TECABTotally Endoscopic CAB
Controlled, Isolated, Less traumatic IMA takedownDirected, small thoracotomy, minimal rib retraction or TECAB –Totally EndoscopicMinimal postop pain.Better LOS, QOL, ADL, RTW, etc…
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CARDICA C‐PORT FLEX A
Less‐Invasive Distal Anastomosis DeviceRemote activationSternal sparingRobotic or non Robotic applications
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NEW DISTAL ANASTOMOTICDEVICE FOR LIMA‐LAD BYPASS GRAFTS PROVIDES NEAR 100%
EARLY PATENCY BY 64 SLICE CT ANGIOGRAPHY
Husam H Balkhy MD, L Samuel Wann MD, Susan Arnsdorf RNThe Wisconsin Heart Hospital, Milwaukee, WI
AHA Nov 2007, Orlando
Presented at AHA Scientific Sessions Nov 6 2007Orlando Florida
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SURGICAL PROCEDURE
Procedure #OPCAB 19OPCAB + AVR 4OPCAB + MVR 1C-Port xA 7C-Port Flex A 18
AHA Nov 2007, Orlando
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NUMBER OF DEVICES PER PATIENT
AHA Nov 2007, Orlando
0
2
4
6
8
10
12
1 C‐Port 2 C‐Ports 3 C‐Ports
.
# of Patients
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MEDISTIM FLOWS (25 LIMA grafts)
Flow (cc/min) PI
80 1.871 2.282 2.480 1.681 1.638 1.645 1.580 1.3147 1.560 1.9100 1.6160 2.3100 1.9
Flow (cc/min) PI
30 2.260 2.5200 1.540 241 1.350 2.277 4.5120 1.650 1.965 3.9100 290 1.6
AHA Nov 2007, Orlando
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CTA PATENCY
Patency # %
Patent 24 96.00%Occluded* 1 4.00%
AHA Nov 2007, Orlando
* Pt had concomitant MVR
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CTA LIMA LAD Flex A
AHA Nov 2007, Orlando
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AHA Nov 2007, Orlando
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Robotic TECAB Flex A
AHA Nov 2007, Orlando
Courtesy Dr Trey Brunstig
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1996 2000 2002 2004
INTRODUCTIONOF THE MINIMALLYINVASIVE CABGPROCEDURE
ROBOTIC ASSISTED INTERNALMAMMARYHARVEST
DRUG ELUTINGSTENTS EMERGE
DEVELOPMENTOF THE HYBRID OPERATING ROOM
Evolution of Robotic Assisted Hybrid Revascularization
Harveting the LIMA via a small incision Harvesting the LIMA using the Da vinci robot Combining robotic LIMA harvest with stenting
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Anastomotic Technology Enables Truly Minimally Invasive CABG
Surgery
The Future CABG Procedure
Sternotomy
Less-Invasive
Anastomotic Technology
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“It is not the strongest who survive, nor the most intelligent, but those most responsive to change.”
Darwin