Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Arterial Closure vs Direct Compression for Hemostasis After PCI - The ACDC Trial

This study has been completed.
University of Toronto
Information provided by (Responsible Party):
St. Michael's Hospital, Toronto Identifier:
First received: December 8, 2005
Last updated: May 15, 2013
Last verified: May 2013
Hemostasis at the arterial puncture site after percutaneous coronary interventions is achieved by either placement of a puncture closure device or by delaying sheath removal for hours to allow normalization of heparin induced anticoagulation. Both of these methods are far from ideal. Delayed sheath removal poses a risk of recurrent bleeding, hematoma formation and results in decreased patient mobility while the safety of closure devices has been called into question by several recent reports. Due to the lack of definitive data, the arterial access site management varies considerably between physicians and among institutions. The proposed study will evaluate the safety and efficacy of arterial closure devices to achieve hemostasis compared with immediate sheath removal after protamine administration followed by direct compression after percutaneous coronary intervention procedures.

Condition Intervention
Coronary Angioplasty
Coronary Artery Disease
Procedure: Closure Device
Procedure: Direct Compression

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Arterial Closure vs Direct Compression for Hemostasis After Percutaneous Coronary Interventions

Further study details as provided by St. Michael's Hospital, Toronto:

Primary Outcome Measures:
  • A composite of major vascular complications (device failure, bleeding, hematoma, infection, pseudoaneurysm, AV fistula and vascular repair)

Secondary Outcome Measures:
  • Time to hemostasis
  • Ambulation time
  • Quality of life
  • Composite of minor vascular complication (bleeding, repeat compression, failure to ambulate per protocol),
  • Post procedural infarction
  • 30 day MACE (death, MI, TVR)

Enrollment: 572
Study Start Date: July 2006
Study Completion Date: November 2009
Primary Completion Date: November 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Direct Compression Procedure: Direct Compression
Active Comparator: Closure Device Procedure: Closure Device

Detailed Description:

Percutaneous coronary intervention (PCI) is the most common procedure performed for obstructive coronary artery disease with more than one million procedures performed annually in United States alone1. Despite major advances in technology and operative expertise, the optimum management of arterial access site after PCI procedures remains unclear.

The conventional practice of arterial access site management involves delaying of sheath removal for several hours to allow normalization of heparin induced anticoagulation. This delayed sheath removal poses a risk of recurrent bleeding and hematoma formation. Furthermore, delayed sheath removal results in decreased patient mobility, increased patient discomfort and requires frequent monitoring with an impact on nursing resources. The risks associated with delayed sheath removal may be further increased by concomitant administration of potent anti platelet therapy now routinely used in patients undergoing PCI2.

Arterial puncture closure devices (APCD) were developed to obtain immediate arterial access site hemostasis after closed vascular procedures with an aim towards early patient mobilization. Although the efficacy of APCD have been documented in several small studies but limited information is available regarding their safety in diverse patient populations. A recent meta analysis has shown increased vascular complication rate associated with the use of these devices bringing the safety of their routine use into question3.

Due to lack of definitive data, the arterial access site management varies considerably between physicians and among institutions. APCD are routinely used by some centers4 while others continue to delay arterial sheath removal for several hours after the procedure5.

Immediate sheath removal followed by direct compression though routinely practiced after coronary angiographic procedures is not used after PCI procedures due to the intra procedural administration of heparin resulting in prolonged anticoagulation. Reversal of heparin with protamine may allow immediate sheath removal resulting in early patient ambulation and decreased access site vascular complications. The safety and efficacy of intravenous protamine administration for reversal of heparin is well established by its routine use in cardiovascular surgery for several decades6 and recent reports showing safety and efficacy of this method for early sheath removal after PCI procedures7-9.

The proposed study is designed to evaluate the safety and efficacy of immediate sheath removal followed by direct compression as compared to the use of APCD to achieve hemostasis after PCI.


Ages Eligible for Study:   20 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

Patients undergoing elective PCI procedures. Femoral artery anatomy favorable for the placement of a closure device Planned use of clopidogrel and platelet glycoprotein IIb/IIIa antagonist

Exclusion Criteria:

Emergency PCI End stage renal disease Hemoglobin level < 100g/l Fish Allergy. Known allergy to Protamine. Use of low molecular weight heparin within last 12 hours. Prior closure device use within 90 days. Symptomatic peripheral vascular disease. Femoral artery calcification on fluoroscopy. Arterial puncture of the superficial femoral artery. Double wall puncture (puncture of anterior & posterior wall of femoral artery). Placement of intra aortic balloon pump. Placement of a femoral venous sheath. Coronary dissection, thrombus or perforation not resolved by the end of case

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00264264

Canada, Ontario
St. Michael's Hospital
Toronto, Ontario, Canada, M5B1W8
Sponsors and Collaborators
St. Michael's Hospital, Toronto
University of Toronto
Principal Investigator: Asim Cheema, MD, PhD St. Michael's Hospital, Toronto
  More Information

Responsible Party: St. Michael's Hospital, Toronto Identifier: NCT00264264     History of Changes
Other Study ID Numbers: AC-101
Study First Received: December 8, 2005
Last Updated: May 15, 2013

Keywords provided by St. Michael's Hospital, Toronto:
Closure device
Percutaneous coronary intervention

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases
Coagulants processed this record on May 25, 2017