Boston Scientific Announces Its ACC 2011 Schedule


Clinical presentations to include 12-month data on PROMUS Element(TM) Platinum Chromium Stent

NATICK, Mass., March 29, 2011 - Boston Scientific Corporation (NYSE: BSX) today announced its clinical trial news and events schedule at the 60th Annual Scientific Session of the American College of Cardiology/i2 Summit, April 2-5, 2011 in New Orleans.

"Twelve-month results from the PLATINUM Workhorse clinical trial will provide important data on our next-generation PROMUS Element(TM) Everolimus-Eluting Platinum Chromium (PtCr) Stent as compared to our market-leading PROMUS® Stent," said Keith D. Dawkins, M.D., Senior Vice President and Chief Medical Officer for Boston Scientific's Cardiology, Rhythm and Vascular (CRV) Group. "Additional analysis from the PERSEUS trial will further demonstrate differences in the PtCr platform compared to prior-generation stents."

Schedule of Events (All times are CST, with events to be held at the Ernest N. Morial Convention Center.)

o Comparison of PERSEUS/ATLAS trial data. Dean Kereiakes, M.D., will
present an analysis of case-matched data from 2,298 patients enrolled in
the PERSEUS and TAXUS ATLAS clinical trials. The study will compare
nine-month angiographic and 12-month clinical outcomes of the ION(TM)
Paclitaxel-Eluting Platinum Chromium Coronary Stent System (TAXUS®
Element(TM)) to the TAXUS® Liberte® Paclitaxel-Eluting Coronary Stent
System. Both stents use the same drug and polymer but differ in metal
alloy composition, stent design and strut thickness. Results will be
presented from 10 to 11:15 a.m. during a poster session in Hall F. The
Company plans to issue a press release announcing trial results at this
time.

o Cost Effectiveness of ION Stent in Small Vessels. Mark Turco, M.D.,
will present an analysis of the cost effectiveness of the ION Stent
(TAXUS Element) versus the bare-metal Express® Stent in patients with
small vessels. Results will be presented from 10 to 11:15 a.m. during a
poster session in Hall F.

o PROMUS Stent in Small Vessels. Jennifer Jones, M.D., will present
12-month results from the SPIRIT Small Vessel trial evaluating the
safety and effectiveness of the 2.25 mm XIENCE V® (2.25 mm PROMUS®)
Everolimus-Eluting Coronary Stent System in treating coronary artery
lesions in small vessels. Results will be presented from 10 to 11:15
a.m. during a poster session in Hall F.

Monday, April 4

o PLATINUM Workhorse 12-month outcomes. Gregg Stone, M.D., the Global
Principal Investigator of the PLATINUM clinical program, will present
12-month results from the PLATINUM Workhorse trial. The randomized,
controlled trial enrolled 1,530 patients at 132 sites worldwide and
compares the PROMUS Element Everolimus-Eluting Platinum Chromium
Coronary Stent System to the PROMUS Everolimus-Eluting Coronary Stent
System. Results will be presented in a late-breaking trial session from
11:39 to 11:51 a.m. in the Main Arena. The Company plans to issue a
press release announcing trial results at this time.

o HORIZONS AMI Diabetic analysis. Bernhard Witzenbichler, M.D., will
present results from an analysis of the HORIZONS AMI trial on the safety
and effectiveness of the TAXUS Express® Stent in diabetic patients with
acute myocardial infarction (AMI) undergoing primary angioplasty.
HORIZONS AMI is the largest randomized trial to compare the use of
drug-eluting stents to bare-metal stents for the treatment of heart
attack patients. Results will be presented during an oral contributions
session from 11:13 to 11:27 a.m. in Room 353.

o MADIT-CRT Changes in Outcomes after 12 months. Anne-Catherine Pouleur,
M.D., will present results from the MADIT-CRT landmark clinical trial
outlining the changes in left ventricle contractility and dyssynchrony
after 12 months of resynchronization therapy. Results will be presented
from 9:30 to 10:45 a.m. during a poster session in Hall F.

o MADIT-CRT Gender Relationship between QRS and Dyssynchrony. Dorit
Knappe, M.D., will present results from the MADIT-CRT trial exploring
gender relationships between QRS width and mechanical dyssynchrony.
Results will be presented from 3:30 to 4:45 p.m. during a poster session
in Hall F.

o Analyst Meeting. Boston Scientific will hold an analyst event providing
an update on CRV Group initiatives involving coronary stent and
structural heart technologies. The event is scheduled to begin at 6
p.m. and adjourn at approximately 7:15 p.m. following a brief
question-and-answer session.

A live webcast of the event will be available to all interested parties via Boston Scientific's website at www.bostonscientific.com. Webcast registration is available on the Investor Relations section of the website. Interested parties are encouraged to register at least 15 minutes prior to the scheduled start time to ensure a timely connection. A webcast replay will be archived and available on the Investor Relations section of the Company's website approximately one hour following the completion of the event.

o Boston Scientific-Sponsored Symposium. The Company has provided an
educational grant to theheart.org to support a CME-accredited symposium
titled "Evolution in Stent Science: Understanding Tomorrow's Technology
Today," chaired by Ted Feldman, M.D. The event will take place at The
Westin New Orleans Canal Place from 7 to 9 p.m. It will feature
presentations by leading interventional cardiologists examining the
latest trends in coronary stent innovation, associated economics and
their potential effect on future treatment options. A reception will be
held prior to the symposium, beginning at 6:30 p.m.

Boston Scientific will present its latest drug-eluting stent, cardiac rhythm management, peripheral intervention and imaging technologies at booth #4121 in the Exhibit Hall.

TAXUS, Express, Liberte, PROMUS, Element and ION are trademarks of Boston Scientific Corporation or its affiliates. XIENCE V is a trademark of the Abbott Laboratories group of companies. The PROMUS Stent is a private-labeled XIENCE V Stent manufactured by Abbott and distributed by Boston Scientific. The SPIRIT clinical program is sponsored by Abbott.

In the U.S., the ION Stent, PROMUS Element Stent and 2.25 mm PROMUS (XIENCE V) Stent are investigational devices, limited by applicable law to investigational use only and not available for sale. The safety and effectiveness of the TAXUS Express Stent has not been established in diabetic patients or patients presenting with AMI.

About Boston Scientific

Boston Scientific is a worldwide developer, manufacturer and marketer of medical devices whose products are used in a broad range of interventional medical specialties. For more information, please visit: www.bostonscientific.com.

CONTACT: Erik Kopp

508-650-8660

(office)

Media Relations

Boston Scientific

Corporation

erik.kopp@bsci.com

Web Site: www.bostonscientific.com

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