Michael F. Mahoney
Chairman, President and Chief Executive Officer at Boston Scientific
Thanks, Lauren, and thank you to everyone for joining us today. We're very proud of our second quarter results, which exceeded our expectations and demonstrated the strength of our category leadership strategy, commitment to clinical evidence and the winning spirit of our global team.
In second quarter '23, total company sales grew 12%, both operationally and organically versus second quarter '22, exceeding the high end of our organic guidance range of 7% to 9%. We anticipate that most of our businesses units grew in line or faster than the respective markets, fueled by our innovative portfolio and commercial execution, also supported by healthy procedure demand.
Second quarter adjusted EPS of $0.53 grew 21% versus second quarter '22, exceeding the high end of the guidance range of $0.48 to $0.50. And second quarter adjusted operating margin was 26.8%, also slightly higher than anticipated. Through the first half of the year, we have grown the business organic sales rate at 13% with broad-based durable growth across all of our business units and regions. Importantly, we have also grown our adjusted EPS growth 20% during the first half, while balancing our investments to ensure we achieve our short-term and long-term goals.
Now for our 2023 guidance, we're guiding the third quarter '23 organic revenue growth of 7% to 9%, and we expect momentum to continue and are raising our full year organic guidance to 10% to 11%. Our third quarter adjusted EPS estimate is $0.46 to $0.48, and we're increasing our full year adjusted EPS range to $1.96 to $2. I'll now provide some additional highlights in the second quarter, along with comments on our '23 outlook, and Dan will provide more details on the financials. Regionally, and on an operational basis, the U.S. grew 9% in second quarter with notable strength in our WATCHMAN, PI and Endoscopy businesses.
Europe, Middle East Africa also grew 9% on an operational basis versus second quarter, with strong performance in the region was broad-based, with double-digit growth in four out of our five major markets in Europe.
Across the portfolio, we saw strength in new and ongoing product launches, including FARAPULSE, POLARx, ACURATE neo2 and LUX-Dx. Asia Pacific grew 24% operationally versus second quarter, led by strength in China and Japan. Japan growth is fueled by new products, including AGENT, our drug-coated balloon for the coronary arteries, and Rezum, our minimally invasive BPH technology with device performance and procedures that leave nothing behind is resonating in the market.
China delivered excellent growth in the second quarter, led by our innovative portfolio and commercial execution against the COVID impact second quarter '22. We also saw particular strength in our interventional cardiology therapies, WATCHMAN, CRM and PI business units, and we continue to expect double-digit growth in China for full year. I'll now provide some additional commentary on our businesses. Starting with urology. Urology sales grew 8% organically in the second quarter.
The stone management franchise grew double digits, driven by LithoVue and ongoing globalization efforts. Rezum continues to do well globally, growing strong double digits in the quarter, and most recently launching in Brazil. We continue to see ongoing momentum within our prosthetic urology franchise, fueled by patient activation efforts, designed to bring awareness to our erectile restoration and male incontinence interventions.
Endoscopy sales were excellent, growing 12% organically and 14% operationally in the second quarter, with notable strength in the U.S., Latin America and Asia Pac, with new product momentum and healthy procedure demand. Our Apollo integration is progressing well and earlier this month, we received FDA clearance for OverStitch NXT, the suturing system that enables future placement during advanced endoscopic procedures.
This next-generation device brings ease-of-use benefits and improved accessibility when using a single-channel endoscope. Neuromodulation sales grew 3% organically in the second quarter. Spinal cord stimulation sales were flat versus prior year, and we expect SCS sales growth to improve in the second half of the year with strong trialing in the second quarter and supportive clinical evidence, which was presented this month at ASPEN. Notably, six-month outcome data were reported from the SOLO's trial, which is a randomized controlled trial for nonsurgical back pain, which demonstrated superior outcomes for SCS against conventional medical management, also consistent with primary endpoint results.
Our Brain franchise grew double digits in the quarter with continued momentum from new product launches in the U.S. and procedure recovery in Europe. Earlier this month, we received FDA approval for the Vercise Neural Navigator five Software, which, when used with our deep brain stimulation system can help provide clinicians with data for efficient programming in the treatment of Parkinson's disease.
Peripheral Intervention sales were very strong, growing 13% organically versus second quarter '22. Our Arterial franchise grew double digits, led by our drug-eluting portfolio. And earlier this month, after reviewing all available data and analysis, the FDA provided updated information associated with paclitaxel-coated devices used to treat PAD, recognizing the safety of these devices and eliminating the requirement for specific warning language within device-related labeling.
We're pleased that the FDA determined that the available data do not support an excess mortality risk, and we remain dedicated to helping physicians provide the best care possible for their patients. In Venous, U.S. growth was led by ongoing strength in Varithena, a nonthermal treatment for varicose veins, with international growth driven by our clot management technologies.
Our Interventional Oncology franchise grew double digits with strength across the entire portfolio. And last month, we received clearance for the Embold Soft and Packing Coils, which along with the Embold Fibered Coil, complete our detachable coil system. We also began our limited market release for Obsidio, which is the only conformable gel embolic material that's indicated for the peripheral vasculature, adding to our robust embolization portfolio. Cardiology delivered another excellent quarter with organic sales growth of 13% versus second quarter.
Within Cardiology, the Interventional Cardiology Therapies business, sales grew 12% organically versus second quarter. Our Coronary Therapies franchise growth was driven by our innovative imaging technologies as well as the recent launch of our AGENT Drug-Coated Balloon in Japan, offsetting ongoing price pressure in drug-eluting stents. Our Structural Heart Valves franchise grew strong double digits with another quarter of performance from our ACURATE neo2 in Europe.
Market reception remains very high, backed by clinical evidence, ease-of-use benefits and a focus on lifetime patient management. We continue to expect to bring ACURATE neo2 to the U.S. in the second half of 2024. WATCHMAN sales grew 27% organically versus second quarter, also outpacing the market. U.S. demand remains strong and international growth was led by China and Japan. We were pleased to have completed enrollment in the WATCHMAN FLX Pro CT pilot study, which is a single study design using multiple imaging modalities to assess post-procedural healing in the next generation of WATCHMAN FLX Pro.
We expect continued momentum within the WATCHMAN franchise further supported by the anticipated approval of our both WATCHMAN FLX Pro and our steerable sheath called TruSteer by the end of 2023. Cardiac Rhythm Management sales grew 5% organically in the quarter. In Core CRM, our high-voltage business grew low single digits, and our low-voltage business grew mid-single digits, and we believe that performance was in line or slightly below market growth as the replacement tailwinds neutralize.
Our Diagnostics franchise grew double digits in the quarter on the strength of our broad cardiac diagnostic portfolio, and we anticipate momentum will continue, supported by the approval of our next-generation ICM called LUX-2 expected later this year. Electrophysiology sales grew 28% organically in the second quarter. International growth continues to be fueled by strong performance in both FARAPULSE and POLARx across Europe and APAC. We continue to make progress towards bringing these innovative technologies to the U.S., and we expect POLARx approval in the third quarter. In addition, we are looking forward to the data presentation of the ADVENT trial, our U.S. IDE, at the ESC Conference on August 27.
Recall the ADVENT trial is a first of its kind, randomized clinical trial, designed for a noninferior 12-month primary safety and efficacy endpoints compared to a commercially available RF and cryoablation systems. It is notable for its design and rigor as it seeks to demonstrate the single procedure effectiveness of an intervention without the use of antiarrhythmic drugs and reablations.
We continue to anticipate the approval of FARAPULSE in the U.S. in 2024. The Access Solutions franchise grew strong double digits in the second quarter with continued momentum in the U.S. and Japan with a differentiated VersaCross transseptal platform. We're also proud of the performance of our global teams and are confident in our future. We remain committed to sustainable innovation and our financial goals, consistently growing sales faster than our underlying markets, expanding operating margins and delivered strong double-digit adjusted EPS growth with a strong adjusted free cash flow generation.
We're looking forward to our September 20 Investor Day, where our leadership team will provide more insight into our innovative pipeline today, the opportunities ahead and our long-term financial goals. So before I pass it along to Dan, I want to announce that we also have some movement within our business unit leadership team.
And after nearly 20 years at Boston Scientific, Maulik Nanavaty has announced his plan to retire in August. Jim Cassidy will now lead the Neuromodulation business, where he previously spent eight years prior before moving over to lead the WATCHMAN franchise five years ago. Lastly, Angelo De Rosa will now lead our WATCHMAN business. Angelo has spent the last 10 years of Boston Scientific in Europe, most recently leading the European CRM and EP business. Congratulations to Jim and Angelo, and we appreciate Maulik for his many contributions to Neuromodulation in Boston Scientific throughout his career.
With that, I'll pass it over to Dan to provide more details on the financials.