User Guide for Atricure models including: Hybrid AF Convergent Therapy, Hybrid AF, Convergent Therapy, Therapy

[PDF] Hybrid AF™ Convergent Therapy Set-Up Guide - AtriCure

(-400 mm/Hg). Stepped. Luer Fitting. IV Tubing to Unpressurized. Normal Saline Bag. Stopcock. RF Cable. (to RF Generator). Page 13. Cannula Set-Up. Vacuum ...


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PE-US-1747E-0227-G Hybrid AF Therapy Set-Up Guide 7x5 Flashcards
Hybrid AFTM Convergent Therapy
Epicardial Ablation & VATS LAAE via AtriClip® for the Treatment of Long-Standing Persistent Atrial Fibrillation
Set-Up Guide

Equipment and Supplies
 TEE Equipment  Defibrillator  Fluoroscopy C-Arm  Bair Hugger  SCD Machine (per standard of care)  Electrocautery Machine  Electrothermal Machine
(HarmonicTM, LigaSureTM, ENSEAL®)  Inflatable Patient Positioning Device:
Placed under left scapula (Assess for optimal placement by inflating and deflating prior to prepping)

 Laparoscopic Graspers  Long Instruments (hold)  Sternal Saw (hold)  Video Monitor Tower & 2nd Monitor  Insufflator  Light Source & Light Cord  Scope (5 mm - 0 degree)  Scope (5 mm - 30 degree)  Camera  Open Heart or Pericardial Window
Instruments

Equipment and Supplies
 Foley Catheter  Gowns  Towels  1010 Drapes  Valve Drape  Left VATS Drape  19F or 24F Blake Drain (hold) x 2  Chest Drainage System or JP Bulb  Defib Pads  Esophageal Temperature Probe  Bovie Pad  Bovie & Extended Tip  Endoscopic Defogger  Surgical Gloves  Suction Tubing x 2

 Endoscopic Trocars (5 mm) x 3  Endoscopic Trocar (12 mm) x 1  Insufflation Tubing  Endoscopic Peanuts (Kitners)  Endoscopic Retention Stitch (hold)  Suction Irrigator (hold)
 EPi-Sense® / EPi-Sense STTM Coagulation Device  Cannula  RF Cable CSK-2000  Grounding Pad  RF Generator (with power cord & foot pedal)  AtriClip PRO2® and/or AtriClip PRO·V® (all sizes)

Hybrid AF Convergent Therapy Procedure: Room Setup

EP Hanging Monitors
Electrocautery Anesthesia

EP/OR Back Table Scrub

Video Surgeon

High Vacuum Suction 400 mmHg

Anesthesiologist

C-Arm

TEE

Assistant

IV Pole 500cc 0.9% Normal Saline

RF Generator

Video Tower

Defibrillator

VATS LAAM via AtriClip: Room Setup

EP Hanging Monitors
Electrocautery Anesthesia

EP/OR Back Table Scrub

Video Tower

Echocardiographer

Surgeon Assistant

TEE Defibrillator

1 Amp Ground Pad & Defibrillator Pad Placement
Defibrillator pads For larger sized patients: Grounding pad may be placed closer to the heart but should not be placed on shoulder blade or interfere with the vector of defibrillator pads Typical left-flank placement
Incorrect placement
 If defibrillator pads are not sterile, place TegadermTM over pads then prep with skin-- making sure pads do not interfere with 2nd intercostal port placement
 Anterior defibrillation pad: right-side, lateral to sternum  Posterior defibrillation pad: mid-thoracic, left of spine

Patient Positioning with Inflatable Device
Place IV pressure bag or inflatable patient positioning device below left scapula. Make sure the pressure bag is not under shoulder/ arm as they will otherwise lift with chest once the bag is inflated. The goal is to have the arm tucked and resting on the OR table even after the chest rises from pressure bag being inflated. This technique provides optimal exposure to medial and posterior axillary lines. · Leave bag inflated during prep and drape · Deflate bag for Convergent Approach
portion of procedure · Inflate for left-sided VATS LAAM

Patient Positioning and Prep

 Patient placed in supine position
 Right arm tucked
 Left-sided inflatable shoulder roll (positioning device with left arm secured and in a hammock position)
 General anesthesia with dual-lumen endotracheal tube for single-lung ventilation (during VATS LAAM component)
 Standard grounding pad for Bovie (usually placed on thigh or buttock)
 1 Amp grounding pad for CS-3000 RF Generator (placed on left flank: see image)

 Defibrillator pads placed and connected to external defibrillator (see image)
 TEE to rule out LAA thrombus (partially retract probe to 20cm after TEE imaging is complete--or remove completely)
 Central line placed (usually done after TEE cleared)
 Arterial line placed
 Foley catheter placed
 Warming blanket
 SCD (institution dependent)

Equipment and Supplies

 Esophageal temperature probe placed by anesthesia and verified under fluoroscopy (C-Arm needed if done in cardiac OR)
 Sterile prep: chin to mid-thigh (ensure positioning device under left shoulder is inflated)
 Standard wall suction (-250 mmHg) with tubing to Cannula
 High vacuum suction (-400 mmHg) with tubing to EPi-Sense Device/ EPi-Sense ST Device

 RF Generator default settings are 30 Watts over 90 seconds ­ these settings should not be changed unless requested by the surgeon
 Insufflation available for LAAM

CSK-320/CS-3000 RF Generator

Current Impedance

Current Watts Delivered

Impedance Delta

To Ablation To Grounding

Device

Pad

Lesion Time (seconds)
To Foot Pedal

Note: When no device is connected to generator a power of 4 Watts (W) and time of 0 seconds will display on RF Generator.
The Error LED will remain lit until a connected device is in contact with tissue.

EPi-Sense Device Set-Up

To High Vacuum (-400 mm/Hg)

Stepped Luer Fitting

Stopcock

IV Tubing to Unpressurized Normal Saline Bag

RF Cable (to RF Generator)

Cannula Set-Up

Vacuum Tubing

To Standard Wall Suction (-250 mm/Hg)

Stepped Luer Fitting Stopcock

To sterile IV tubing connected to 1 L normal saline or sterile water (room temp, pressurized)
Alternatively Asepto syringe may be used instead of IV tubing/ pressurized liter bag of fluid for cannula irrigation

Guidewire

EPi-Sense ST Product Description

16

13

15

7

14 12

11

10

12

2

8

91

34

6 5

1. Handle 2. Steering Lever 3. Tension Control Knob 4. LED Indicator Light 5. Guidewire Port 6. Perfusion Tubing with Luer
Connection ["IRRIG"]

7. Vacuum Tube Connector ["VAC"]
8. CSK-2060 RF Cable Connector
9. Nose Cone 10. Main Body 11. Distal Shell

12. Ablation and Sensing Electrodes 13. Guide Tube Opening 14. Locator Arrows
(1cm spacing) 15. Vacuum Lumen 16. Insulative Covering

EPi-Sense ST Device Set-Up
RF Generator Cable Connection "Blue to Blue"

High Vacuum Connection (-400 mm/Hg)

Irrigation Connection to NS 0.9% 500 ml bag
(unpressurized)
LED Indicator Light Red: 50°C temperature limit/compromised perfusion Yellow: Low battery/RF cable warning

Cannula Set-Up

EPi-Sense ST Device Guidewire

Stopcock

­250 mmHG suction (Field suction, from Yankauer) [Optional] 1000 mL saline bag, pressurized (or Asepto Bulb)

CSK­2060 RF Cable
Battery Case Screw, Removed with #1 Phillips screwdriver

Lithium Battery

Black End: plug into RF generator Blue End: plug into EPi-Sense ST Device

Dispose of battery in accordance with local governing ordinances

Hybrid AF Convergent Therapy Procedure: Device Set-Up continued
 Ensure adequate anticoagulation prior to ablation  Insert IV tubing set into 0.9% normal saline bag  Turn on vacuum pressure and prime device by engaging the suction with a sterile surface
(gloved hand)  Ensure perfusion flow is functioning by observing drops in IV tubing drip chamber. Make
sure the device is primed by observing perfusion at distal end of coagulation device before starting operation of device. Ensure IV line is fully open.  Insert device into cannula and advance to target tissue  Confirm arrows point toward target tissue and apply vacuum  Irrigate field (1 L normal saline pressurized bag connected to cannula)

EPi-Sense Irrigation Set-Up
 Prepare the Vacuum  Attach one end of the sterile vacuum tubing to the graduated fitting as indicated on device handle by the vacuum symbol (VAC) and the other to the vacuum trap. Use the stopcock to apply and release the vacuum to the distal assembly.  Ensure the vacuum unit pressure is set to ­400 mmHg
 Prepare the 0.9% Normal Saline Bag  Place unpressurized saline IV bag at patient height or above.  Connect perfusion tubing to the female Luer connection as indicated on device handle by the perfusion droplet symbol. Verify IV line is fully open.

Saline should drip at one drip
per second when vacuum is engaged

Hybrid AF Convergent Therapy: Procedural Steps
 Surgeon makes small (2-3 cm) incision over xiphoid process ­ surgeon may elect to remove some (or all) of xiphoid process
 Surgeon establishes sub-xiphoid (Sub-X) pericardial window  AtriCure cannula placed at the posterior wall behind heart within pericardial window  Introduce 0-degree 5 mm scope through cannula  Through scope, identify landmarks on posterior left atrium  Insert EPi-Sense/ST device prior to ablation  Ready to ablate  After posterior wall is ablated ­ Blake drain may be placed in the pericardial space

Hybrid AF Convergent Therapy: Procedural Steps
 Anesthesia inflates the positioning device for LVATS LAAM & deflates Left lung  Surgeon places ports (5 mm in the 2nd ICS, 5 mm in the 4th ICS, 12 mm in 6th ICS,
mid-axillary line, posterior-axillary line)  Insufflates (flow & pressure)  Surgeon performs pericardiotomy  Appendage is exposed, measured and clipped  Echo confirms occlusion  Blake drain may be placed in pericardial space and attached to chest drainage system

VATS LAAM via AtriClip: Procedural Steps
First Port · 5 mm port 4th intercostal space axillary lines · Attach CO2 and turn on to a pressure of 8 flow 20 mmHg
Second Port · With scope in the 4th intercostal port, look cranially towards the 2nd intercostal space · 5 mm port 2nd intercostal space no more medial than mid-clavicular
Third Port · Third port trajectory oriented towards hilum or pulmonary veins · With scope in the 2nd intercostal port, look caudally down the rib-cage towards the diaphragm · 12 mm port 6th ICS mid-to-posterior-axillary lines
Fourth Port · Option One: 5 mm port 6th intercostal space mid-clavicular line · Option Two: 5 mm port 3rd intercostal space (between 2nd & 4th ICS ports) · Camera Port is typically is the 4th ICS port

VATS LAAM via AtriClip: Procedural Steps
Optional 4th Port
Anterior Axillary Mid Axillary Posterior Axillary

Hybrid AF Convergent Therapy* Recommended Anticoagulation Regimen: Epicardial Pre, Intra and Post Procedure Treatment

· Minimize time between discontinuation of DOACs and first incision
· Patient thrombogenicity increases · Watch for thrombus

· Recognize window of minimal protection between loss of heparin effectiveness and DOAC effective therapeutic range

Pre-Procedural (24-48 hours) Antiarrhythmic regimen | Anticoagulants · Continue antiarrhythmic regiment
(e.g. Tikosyn vs Amiodarone) · Consider rate control medications
(e.g. Diltizem vs Metoprolol) · Discontinue Pre-surgical DOAC
24 hrs prior to first incision · If discontinuing Pre-surgical DOAC > 24 hrs
prior to first incision, consider bridging with Lovenox, Heparin if patient:
· Is at increased risk of LA thrombus/ history of LAA thrombus
· Has an elevated CHADSVASC > 4 · History of TIA/CVA
*When using EPi-Sense/EPi-Sense ST 1. Heart Rhythm, Vol 14, No 10, October 2017.

Intra-Procedural
· Heparinization during epicardial ablation w/EPi-Sense and EPi-Sense STTM ACT > 300 prior to ablating
· During endocardial catheter ablation -per anticoagulation protocol consistent with HRS guidelines1

Post-Procedural
Post-Op anticoagulation management · Develop strategy with EP and combine with
Post-surgery anticoagulation therapy · Follow 2017 HRS Expert Consensus for
anticoagulation management post ablation1 · Immediately following transfer to unit
activate anticoagulation and before ACT reaches normal (100-125) when patient is at highest risk of thrombi · Consider resuming DOACs (every DOAC has a different therapeutic time) within 4-6 hours post-procedure if there is no bleeding

EPi-Sense® ST Guided Coagulation System The EPi-Sense Coagulation System/EPi-Sense STTM Coagulation Device is intended for the treatment of symptomatic long-standing persistent atrial fibrillation (continuous atrial fibrillation greater than 12 months duration) when augmented in a hybrid procedure with an endocardial catheter listed in the instructions for use, in patients (1) who are refractory or intolerant to at least one Class I and/or III antiarrhythmic drug (AAD); and (2) in whom the expected benefit from rhythm control outweighs the potential known risks associated with a hybrid procedure such as delayed post-procedure inflammatory pericardial effusions. Contraindications include patients with Barrett's Esophagitis, left atrial thrombus, a systemic infection, active endocarditis, or a localized infection at the surgical site at the time of surgery. Adverse Events: Reported adverse events associated with epicardial ablation procedure may include, but are not limited to, the following: pericardial effusion/cardiac tamponade, pericarditis, excessive bleeding, phrenic nerve injury, stroke/TIA/neurologic complication. Warnings: Physicians should consider post-operative anti-inflammatory medication to decrease the potential for post-operative pericarditis. and/or delayed post-procedure inflammatory pericardial effusions. Physicians should consider post-procedural imaging (i.e. 1-3 weeks post-procedure) for detection of post-procedure inflammatory pericardial effusions. Precautions: Precautionary measures should be taken prior to considering treatment of patients: (1) Deemed to be high risk and who may not tolerate a potential delayed post-procedure inflammatory pericardial effusion. (2) Who may not be compliant with needed follow-ups to identify potential safety risks. To ensure patients undergoing treatment with the EPi-Sense device are well informed, the benefits, potential risks and procedural outcomes associated with the EPi-Sense Hybrid Convergent procedure should be discussed with the patient. Physicians should document accordingly in the medical record. Qualified operators are physicians authorized by their institution to perform surgical sub-xyphoid pericardial access. The coagulation devices should be used by physicians trained in the techniques of minimally invasive endoscopic surgical procedures and in the specific approach to be used. Operators should undergo training on the use of EPi-Sense device before performing the procedure. Safety and effectiveness of concomitant left atrial appendage closure was not evaluated in the CONVERGE study. Follow-up should be conducted at approximately 30 days post procedure to monitor for signs of delayed onset pericarditis or pericardial effusion. Rx Only.
AtriClip LAA Exclusion System U.S. Indications: The AtriClip LAA Exclusion System is indicated for the exclusion of the heart's left atrial appendage, under direct visualization and in conjunction with other cardiac surgical procedures. Direct visualization, in this context, requires that the surgeon is able to see the heart directly, with or without assistance from a camera, endoscope, etc., or any other viewing technology. Warnings: The safety and effectiveness of this device is atrial rhythm control management, either alone or in combination with ablative treatment, has not been established. Rx Only.
ATRICURE, INC.
7555 Innovation Way
Mason, OH 45040 USA
+1 (513) 755-4100
+1 (866) 349-2342
CustomerService@AtriCure.com
www.AtriCure.com
PE-US-1747E-0227-G



References

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