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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01572246
Other study ID # ISROTH20028
Secondary ID
Status Completed
Phase N/A
First received March 27, 2012
Last updated February 23, 2017
Start date May 2012
Est. completion date September 14, 2016

Study information

Verified date August 2016
Source Oregon Health and Science University
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This observational protocol will evaluate the effects of monopolar electrocautery (ME) on implantable cardioverter defibrillators (ICDs) in patients undergoing surgery. ME can cause electromagnetic interference (EMI) leading to ICD damage or inadvertent ICD discharge (shocks). Recommended practice calls for the preoperative reprogramming of ICDs when ME will be used to prevent patients from receiving inadvertent shocks. This requires the presence of someone trained in ICD programming, but a trained person is not always readily available.

In this study the investigators will reprogram ICDs prior to surgery according to current practice, but will also record what would have happened had the ICD reprogramming not occurred ("detection on" but "therapy off"). In addition, the investigators will evaluate the effect of the location of the electrosurgery unit (ESU) return pad on the incidence of EMI. The investigators hypothesize that directing the current return path away from the ICD will result in lower EMI rates than previously described.


Recruitment information / eligibility

Status Completed
Enrollment 167
Est. completion date September 14, 2016
Est. primary completion date September 14, 2016
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Adult individuals of both genders, 18 years of age and older

- For patients undergoing surgery about the waist, previous implantation of a functioning Boston Scientific or Medtronic ICD

- For patients undergoing surgery below the waist, previous implantation of a functioning Boston Scientific, Medtronic, St. Jude Medical, or Biotronik ICD

- Signed informed consent

Exclusion Criteria:

- Surgery involving the ICD pocket (generator change out procedure)

- Surgery or procedures exclusively involving bipolar electrocautery (such as ophthalmic surgery)

- Patients undergoing surgery above the waist with ICDs not manufactured by Medtronic or Boston Scientific (other ICDs do not allow reprogramming to allow EMI detection without the potential for inadvertent ICD discharge)

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Optimal placement of return pad
The ESU return pad will be placed in an optimal position in order to direct ME current away from the ICD pulse generators.

Locations

Country Name City State
United States Oregon Health & Science University Portland Oregon

Sponsors (2)

Lead Sponsor Collaborator
Oregon Health and Science University Boston Scientific Corporation

Country where clinical trial is conducted

United States, 

References & Publications (9)

A comparison of antiarrhythmic-drug therapy with implantable defibrillators in patients resuscitated from near-fatal ventricular arrhythmias. The Antiarrhythmics versus Implantable Defibrillators (AVID) Investigators. N Engl J Med. 1997 Nov 27;337(22):1576-83. — View Citation

American Society of Anesthesiologists.. Practice advisory for the perioperative management of patients with cardiac implantable electronic devices: pacemakers and implantable cardioverter-defibrillators: an updated report by the american society of anesthesiologists task force on perioperative management of patients with cardiac implantable electronic devices. Anesthesiology. 2011 Feb;114(2):247-61. doi: 10.1097/ALN.0b013e3181fbe7f6. — View Citation

Cheng A, Nazarian S, Spragg DD, Bilchick K, Tandri H, Mark L, Halperin H, Calkins H, Berger RD, Henrikson CA. Effects of surgical and endoscopic electrocautery on modern-day permanent pacemaker and implantable cardioverter-defibrillator systems. Pacing Clin Electrophysiol. 2008 Mar;31(3):344-50. doi: 10.1111/j.1540-8159.2008.00996.x. — View Citation

Crossley GH, Poole JE, Rozner MA, Asirvatham SJ, Cheng A, Chung MK, Ferguson TB Jr, Gallagher JD, Gold MR, Hoyt RH, Irefin S, Kusumoto FM, Moorman LP, Thompson A. The Heart Rhythm Society (HRS)/American Society of Anesthesiologists (ASA) Expert Consensus Statement on the perioperative management of patients with implantable defibrillators, pacemakers and arrhythmia monitors: facilities and patient management this document was developed as a joint project with the American Society of Anesthesiologists (ASA), and in collaboration with the American Heart Association (AHA), and the Society of Thoracic Surgeons (STS). Heart Rhythm. 2011 Jul;8(7):1114-54. doi: 10.1016/j.hrthm.2010.12.023. Review. — View Citation

Fiek M, Dorwarth U, Durchlaub I, Janko S, Von Bary C, Steinbeck G, Hoffmann E. Application of radiofrequency energy in surgical and interventional procedures: are there interactions with ICDs? Pacing Clin Electrophysiol. 2004 Mar;27(3):293-8. — View Citation

Korantzopoulos P, Letsas KP, Grekas G, Goudevenos JA. Pacemaker dependency after implantation of electrophysiological devices. Europace. 2009 Sep;11(9):1151-5. doi: 10.1093/europace/eup195. Review. — View Citation

Moss AJ, Zareba W, Hall WJ, Klein H, Wilber DJ, Cannom DS, Daubert JP, Higgins SL, Brown MW, Andrews ML; Multicenter Automatic Defibrillator Implantation Trial II Investigators.. Prophylactic implantation of a defibrillator in patients with myocardial infarction and reduced ejection fraction. N Engl J Med. 2002 Mar 21;346(12):877-83. — View Citation

Rozner MA. The patient with a cardiac pacemaker or implanted defibrillator and management during anaesthesia. Curr Opin Anaesthesiol. 2007 Jun;20(3):261-8. Review. — View Citation

Stone KR, McPherson CA. Assessment and management of patients with pacemakers and implantable cardioverter defibrillators. Crit Care Med. 2004 Apr;32(4 Suppl):S155-65. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Incidence of electromagnetic interference (EMI) Evaluation of occurence of EMI when monopolar electrocautery is used in surgical procedures when the patient has an existing ICD. During surgery on day of enrollment
Secondary Incidence of unexpected preoperative ICD-related problems Determine the incidence and nature of unexpected preoperative ICD-related problems, such as inadequate pacing or sensing thresholds, battery at or near elective replacement interval, and lead fracture, as detected by preoperative ICD interrogation. Up to 6 months prior to date of surgery
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