Publications by authors named "Marcelo Irigo"

Breast cancer is among the most common cancers diagnosed in women, affecting one in eight women per year. Immediate implant-based breast reconstruction has emerged as the predominant approach for postmastectomy reconstruction, with a growing preference for the direct-to-implant (DTI) method over the traditional tissue expander technique. While conventionally, implants were typically positioned beneath the pectoralis major muscle, recent advancements have paved the way for implant placement above the muscle, in the prepectoral plane.

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Background: Preoperative vascular mapping has been demonstrated to be an excellent adjunct to perforator flap surgery by reducing operative times and enhancing surgical precision. This study evaluated the benefit of preoperative vascular mapping using magnetic resonance imaging and Doppler ultrasonography to identify the different perforators to the breast and compared it to postoperative mapping. The authors' intent was to determine whether preoperative knowledge of the various vascular sources to the nipple-areola complex affected the outcome and vitality of the nipple-areola complex.

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Introduction: Achieving breast symmetry following unilateral mastectomy remains a challenge. Contralateral procedures are usually necessary to achieve breast symmetry. Controversy exists regarding whether these symmetry procedures should be performed at the time of the initial reconstruction or on a delayed basis.

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Background: The authors describe the vascular anatomy of the fifth anterior intercostal artery perforator and its role for perfusion of the nipple-areola complex following nipple-sparing mastectomy.

Methods: Twenty fresh cadavers were injected with 20 cc of colored latex through the internal mammary artery. The catheter was placed at the level of the second intercostal space after removal of the rib.

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Surgical treatment of breast cancer has changed during the last few decades. Long-term evaluation of several studies performed worldwide have confirmed that conservative surgery (CS) and radical mastectomy have similar survival rates. Due to CS being the gold standard for treatment for most women with breast cancer, advances in materials, mastectomy and reconstructive surgery techniques, now give us the possibility to perform on our patients a great outcome with oncological security.

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The mammary gland is composed of multiple tubules acinar pockets in which the secretory layer, connective tissue stroma, and fatty tissue all respond to hormonal and systemic influences. These structures are irrigated by three vascular pedicle branches, from the axillary artery, internal mammary artery, and intercostal artery. This vascular anastomotic arrangement forms the anatomical basis of the flaps used in breast reduction techniques.

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Background: Many techniques have been described for mastopexy, with several types of skin incisions and parenchymal rearrangements. We present a parenchymal rearrangement technique allowing better upper pole fullness and nipple-areola-complex (NAC) projection when performing a mastopexy, with a combination of a superior pedicle for the NAC and an inferiorly-based parenchymal flap, the so-called "autoprosthesis".

Methods: From January 2008 to June 2015, 184 patients underwent "autoprosthesis" mastopexy.

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Early and accurate diagnosis and treatment of nipple-areolar complex (NAC) ischemia and necrosis are fundamental to the practice of breast surgery. Knowledge of breast anatomy, risk factors, and proper technique is not sufficient for avoiding this complication in all cases. Management of this situation is dynamic; it depends on the time of detection, and knowledge of different surgical maneuvers for NAC reperfusion.

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Adipose tissue is an attractive source of mesenchymal stromal cells (MSCs) owing to the relative ease of obtaining large volumes with more MSC abundance compared with other sources. Increasing evidence supports the fact that trophic factors secreted by MSCs play a pivotal therapeutic role. Several strategies in regenerative medicine use MSCs, mainly exploiting their immunosuppressive effect and homing capacity to sites of damage.

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