title: The Gulf Implantable Cardioverter-defibrillator Registry: Rationale, Methodology, and Implementation.
abstract: BACKGROUND
  The implantable cardioverter-defibrillator (ICD) is effective in the prevention of sudden cardiac death in high-risk patients. Little is known about ICD use in the Arabian Gulf. We designed a study to describe the characteristics and outcomes of patients receiving ICDs in the Arab Gulf region.
  
  
  METHODS
  Gulf ICD is a prospective, multi-center, multinational, and observational study. All adult patients 18 years or older, receiving a de novo ICD implant and willing to sign a consent form will be eligible. Data on baseline characteristics, ICD indication, procedure and programing, in-hospital, and 1-year outcomes will be collected. Target enrollment is 1500 patients, which will provide adequate precision across a wide range of expected event rates.
  
  
  RESULTS
  Fifteen centers in six countries are enrolling patients (Saudi Arabia, United Arab Emirates, Kuwait, Oman, Bahrain, and Qatar). Two-thirds of the centers have dedicated electrophysiology laboratories, and in almost all centers ICDs are implanted exclusively by electrophysiologists. Nearly three-quarters of the centers reported annual ICD implant volumes of ≤150 devices, and pulse generator replacements constitute <30% of implants in the majority of centers. Enrollment started in December 2013, and accrual rate increased as more centers entered the study reaching an average of 98 patients per month.
  
  
  CONCLUSIONS
  Gulf ICD is the first prospective, observational, multi-center, and multinational study of the characteristics and, the outcomes of patients receiving ICDs in the Arab Gulf region. The study will provide valuable insights into the utilization of and outcomes related to ICD therapy in the Gulf region.
authors.affiliation: Division of Adult Cardiology, Institute of Cardiac Sciences, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates; College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates.
authors.forename: Alawi A
authors.initials: AA
authors.lastname: Alsheikh-Ali
authors.affiliation: Department of Cardiac Sciences, King Khalid University Hospital, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Ahmad S
authors.initials: AS
authors.lastname: Hersi
authors.affiliation: Mohammed Bin Khalifa Bin Sulman AlKhalifa Cardiac Center, Bahrain Defense Force Hospital, Manama, Kingdom of Bahrain.
authors.forename: Adel K S
authors.initials: AK
authors.lastname: Hamad
authors.affiliation: Prince Sultan Cardiac Center, King Fahd Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Ahmed R
authors.initials: AR
authors.lastname: Al Fagih
authors.affiliation: King Salman Heart Center, King Fahd Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Faisal M
authors.initials: FM
authors.lastname: Al-Samadi
authors.affiliation: King Abdulaziz Cardiac Center, King Abdulaziz Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Abdulmohsen M
authors.initials: AM
authors.lastname: Almusaad
authors.affiliation: Division of Adult Cardiology, King Fahd Armed Forces Hospital, Jeddah, KSA.
authors.forename: Fayez A
authors.initials: FA
authors.lastname: Bokhari
authors.affiliation: Division of Adult Cardiology, Chest Hospital, Kuwait Cardiac Center and Dabbous Cardiac Center, Kuwait City, Kuwait.
authors.forename: Fawzia
authors.initials: F
authors.lastname: Al-Kandari
authors.affiliation: Heart Center, King Faisal Specialist Hospital and Research Center, College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Bandar S
authors.initials: BS
authors.lastname: Al-Ghamdi
authors.affiliation: Division of Adult Cardiology, Royal Hospital, Muscat, Oman.
authors.forename: Najib
authors.initials: N
authors.lastname: Al Rawahi
authors.affiliation: Division of Adult Cardiology, Heart Hospital, Hamad Medical Corporation, Doha, Qatar.
authors.forename: Nidal
authors.initials: N
authors.lastname: Asaad
authors.affiliation: Division of Adult Cardiology, Zayed Military Hospital, Abu Dhabi, United Arab Emirates.
authors.forename: Salem
authors.initials: S
authors.lastname: Alkaabi
authors.affiliation: Division of Adult Cardiology, King Faisal Specialist Hospital, Jeddah, Kingdom of Saudi Arabia.
authors.forename: Amin
authors.initials: A
authors.lastname: Daoulah
authors.affiliation: Division of Adult Cardiology, Dubai Hospital, Dubai, United Arab Emirates.
authors.forename: Hosam A
authors.initials: HA
authors.lastname: Zaky
authors.affiliation: Division of Adult Cardiology, Institute of Cardiac Sciences, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates.
authors.forename: Omer
authors.initials: O
authors.lastname: Elhag
authors.affiliation: Prince Sultan Cardiac Center, King Fahd Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Yahya S
authors.initials: YS
authors.lastname: Al Hebaishi
authors.affiliation: Division of Adult Cardiology, King Fahd Armed Forces Hospital, Jeddah, KSA.
authors.forename: Raed
authors.initials: R
authors.lastname: Sweidan
authors.affiliation: King Abdulaziz Cardiac Center, King Abdulaziz Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Haitham
authors.initials: H
authors.lastname: Alanazi
authors.affiliation: Division of Adult Cardiology, Royal Hospital, Muscat, Oman.
authors.forename: David
authors.initials: D
authors.lastname: Chase
authors.affiliation: Division of Adult Cardiology, Institute of Cardiac Sciences, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates.
authors.forename: Hani
authors.initials: H
authors.lastname: Sabbour
authors.affiliation: Division of Adult Cardiology, Institute of Cardiac Sciences, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Al Meheiri
authors.affiliation: Division of Adult Cardiology, Royal Hospital, Muscat, Oman.
authors.forename: Ismail
authors.initials: I
authors.lastname: Al Abri
authors.affiliation: Mohammed Bin Khalifa Bin Sulman AlKhalifa Cardiac Center, Bahrain Defense Force Hospital, Manama, Kingdom of Bahrain.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Amin
authors.affiliation: Prince Sultan Cardiac Center, King Fahd Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Khaled
authors.initials: K
authors.lastname: Dagriri
authors.affiliation: Prince Sultan Cardiac Center, King Fahd Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Adil O
authors.initials: AO
authors.lastname: Ahmed
authors.affiliation: Heart Center, King Faisal Specialist Hospital and Research Center, College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia.
authors.forename: Azam
authors.initials: A
authors.lastname: Shafquat
authors.affiliation: Division of Adult Cardiology, Heart Hospital, Hamad Medical Corporation, Doha, Qatar.
authors.forename: Shahul Hameed
authors.initials: SH
authors.lastname: Khan
keywords: Arabian Gulf; implantable defibrillator; registry