Página 1 dos resultados de 1795 itens digitais encontrados em 0.015 segundos

‣ Comparative study of the techniques to bridge the bone loss in T.K.A.; Estudo comparativo das técnicas de colmatação de perda óssea na A.T.J.

Duarte, Ricardo José de Jesus
Fonte: Universidade de Aveiro Publicador: Universidade de Aveiro
Tipo: Dissertação de Mestrado
Português
Relevância na Pesquisa
37.307373%
This thesis objective was to study the biomechanical aspects of the di erent repair techniques of bone loss in the proximal tibia, in the revision of total knee arthroplasty. We sought to speci cally evaluate how each of the di erent techniques changes the load transfer to the supporting bone, thus gauging the potential for bone resorption or fatigue failure of the supporting bone. Was also assessed, in a comparative way, the stability of each repair construction of the bone defects, relatively to the solutions without bone defects. We also sought, in this work, to evaluate the e ect of the use of intramedullary stems when associated to di erent techniques. For this purpose, as a rst step, we tried to perform a detailed analysis of the knee joint in its anatomical and biomechanical aspects, with special focus on arthroplasty and its revision process. We selected the knee prosthesis P.F.C. Sigma as an element for the realization of the comparative study. The prosthetic metal elements used in the di erent bone replacement constructions were also the same model, hemi-wedge, wedge and block total. As a complement two more bone repair techniques were also compared: using only bone cement in contrast with the use of a bovine bone graft. In the following phase experimental models were developed using the tibia in composite material...

‣ Comparative study between two techniques of incisional hernia repair with polypropylene mesh in rabbits

Minossi,José Guilherme; Caramori,Carlos Antonio; Leite,Celso Vieira de Souza; Naresse,Luiz Eduardo
Fonte: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia Publicador: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/10/2010 Português
Relevância na Pesquisa
37.21585%
PURPOSE: To compare two different incisional hernia repair techniques (repair with a polypropylene mesh reinforcement on the peritonium-aponeurosis versus polypropylene mesh sutured to the borders of the hernial ring as a bridge) in rabbits. METHODS: Incisional hernia was experimentally developed through a 4-cm median incision in 60 rabbits. After 30 days, half of the animals were operated for primary wall closure and placement of a polypropylene mesh reinforcement, while the other half had a polypropylene mesh sutured to the borders of the hernial ring as a bridge. Clinical development, scar breaking strength, as well as gross, microscopic and morphometric parameters were evaluated in all animals 30, 60, and 90 days after repair. RESULTS: No significant differences in breaking strength or histological parameters were observed between groups at any time point studied. No statistical difference regarding complications was detected, although denser and firmer adhesions to the abdominal wall were seen after the mesh was placed as a " bridge" . CONCLUSIONS: No significant differences between the incisional hernia repair techniques assessed were observed regarding breaking strength, and histological and morphometric parameters. The number of complications was similar in both study groups. However...

‣ Success Rates and Immunologic Responses of Autogenic, Allogenic, and Xenogenic Treatments to Repair Articular Cartilage Defects

Revell, Christopher M.; Athanasiou, Kyriacos A.
Fonte: Mary Ann Liebert, Inc. Publicador: Mary Ann Liebert, Inc.
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
37.260017%
This review examines current approaches available for articular cartilage repair, not only in terms of their regeneration potential, but also as a function of immunologic response. Autogenic repair techniques, including osteochondral plug transplantation, chondrocyte implantation, and microfracture, are the most widely accepted clinical treatment options due to the lack of immunogenic reactions, but only moderate graft success rates have been reported. Although suspended allogenic chondrocytes are shown to evoke an immune response upon implantation, allogenic osteochondral plugs and tissue-engineered grafts using allogenic chondrocytes exhibit a tolerable immunogenic response. Additionally, these repair techniques produce neotissue with success rates approaching those of currently available autogenic repair techniques, while simultaneously obviating their major hindrance of donor tissue scarcity. To date, limited research has been performed with xenogenic tissue, although several studies demonstrate the potential for its long-term success. This article focuses on the various treatment options for cartilage repair and their associated success rates and immunologic responses.

‣ Comparative evaluation of the tendon-bone interface contact pressure in different single- versus double-row suture anchor repair techniques

Baums, Mike H.; Spahn, G.; Steckel, H.; Fischer, A.; Schultz, W.; Klinger, H.-M.
Fonte: Springer-Verlag Publicador: Springer-Verlag
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.46802%
The aim of the study was to evaluate the time zero contact pressure over a defined rotator cuff footprint using different repair and stitch techniques in an established sheep model. Forty fresh-frozen sheep shoulders were randomly assigned to five repair groups: single-row repair using simple stitches (SRA-s), single-row repair using horizontal mattress stitches (SRA-m), and single-row repair using arthroscopic Mason-Allen stitches (SRA-ama). Double-row repair was either performed with a combination of simple and horizontal mattress stitches (DRA-sm) or with arthroscopic Mason-Allen/horizontal mattress stitches (DRA-amam). Investigations were performed using a pressure-sensitive film system. The average contact pressure and pressure pattern were measured for each group. Contact pressure was lowest in SRA-m followed by SRA-s. SRA-ama showed highest contact pressure of all single-row treatment groups (P < 0.05). DRA-amam presented the highest overall contact pressure (P < 0.05), whereas DRA-sm exerted contact pressure equal to that of SRA-ama. Both double-row techniques showed the most expanded pressure pattern. Average contact pressures for the more complex single- and double-row techniques utilizing arthroscopic Mason-Allen stitches were greater than were those of the repair techniques utilizing simple and horizontal mattress stitches. However...

‣ Selectivity in the Reinnervation of the Lateral Gastrocnemius Muscle after Nerve Repair with Ethyl Cyanoacrylate in the Rat

Landegren, Thomas; Risling, Mårten; Hammarberg, Henrik; Persson, Jonas K. E.
Fonte: Frontiers Research Foundation Publicador: Frontiers Research Foundation
Tipo: Artigo de Revista Científica
Publicado em 27/04/2011 Português
Relevância na Pesquisa
37.340557%
There is a need for complementary surgical techniques that enable rapid and reliable primary repair of transected nerves. Previous studies after peripheral nerve transection and repair with synthetic adhesives have demonstrated regeneration to an extent comparable to that of conventional techniques. The aim of this study was to compare two different repair techniques on the selectivity of muscle reinnervation after repair and completed regeneration. We used the cholera toxin B technique of retrograde axonal tracing to evaluate the morphology, the number, and the three-dimensional location of α-motoneurons innervating the lateral gastrocnemius muscle and compared the results after repair with either ethyl cyanoacrylate (ECA) or epineural sutures of the transected parent sciatic nerve. In addition, we recorded the wet weight of the muscle. Six months after transection and repair of the sciatic nerve, the redistribution of the motoneuron pool was markedly disorganized, the motoneurons had apparently increased in number, and they were scattered throughout a larger volume of the spinal cord gray matter with a decrease in the synaptic coverage compared to controls. A reduction in muscle weight was observed as well. No difference in morphometric variables or muscle weight between the two repair methods could be detected. We conclude that the selectivity of motor reinnervation following sciatic nerve transection and subsequent repair with ECA is comparable to that following conventional micro suturing.

‣ The knee meniscus: structure-function, pathophysiology, current repair techniques, and prospects for regeneration

Makris, Eleftherios A.; Hadidi, Pasha; Athanasiou, Kyriacos A.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
46.953066%
Extensive scientific investigations in recent decades have established the anatomical, biomechanical, and functional importance that the meniscus holds within the knee joint. As a vital part of the joint, it acts to prevent the deterioration and degeneration of articular cartilage, and the onset and development of osteoarthritis. For this reason, research into meniscus repair has been the recipient of particular interest from the orthopedic and bioengineering communities. Current repair techniques are only effective in treating lesions located in the peripheral vascularized region of the meniscus. Healing lesions found in the inner avascular region, which functions under a highly demanding mechanical environment, is considered to be a significant challenge. An adequate treatment approach has yet to be established, though many attempts have been undertaken. The current primary method for treatment is partial meniscectomy, which commonly results in the progressive development of osteoarthritis. This drawback has shifted research interest towards the fields of biomaterials and bioengineering, where it is hoped that meniscal deterioration can be tackled with the help of tissue engineering. So far, different approaches and strategies have contributed to the in vitro generation of meniscus constructs...

‣ Advances of Peripheral Nerve Repair Techniques to Improve Hand Function: A Systematic Review of Literature

P, Mafi; S, Hindocha; M, Dhital; M, Saleh
Fonte: Bentham Open Publicador: Bentham Open
Tipo: Artigo de Revista Científica
Publicado em 23/02/2012 Português
Relevância na Pesquisa
47.40908%
Concepts of neuronal damage and repair date back to ancient times. The research in this topic has been growing ever since and numerous nerve repair techniques have evolved throughout the years. Due to our greater understanding of nerve injuries and repair we now distinguish between central and peripheral nervous system. In this review, we have chosen to concentrate on peripheral nerve injuries and in particular those involving the hand. There are no reviews bringing together and summarizing the latest research evidence concerning the most up-to-date techniques used to improve hand function. Therefore, by identifying and evaluating all the published literature in this field, we have summarized all the available information about the advances in peripheral nerve techniques used to improve hand function. The most important ones are the use of resorbable poly[(R)-3-hydroxybutyrate] (PHB), epineural end-to-end suturing, graft repair, nerve transfer, side to side neurorrhaphy and end to side neurorrhaphy between median, radial and ulnar nerves, nerve transplant, nerve repair, external neurolysis and epineural sutures, adjacent neurotization without nerve suturing, Agee endoscopic operation, tourniquet induced anesthesia, toe transfer and meticulous intrinsic repair...

‣ Anatomic Deltoid Ligament Repair with Anchor-to-Post Suture Reinforcement: Technique Tip

Lack, William; Phisitkul, Phinit; Femino, John E.
Fonte: The University of Iowa Publicador: The University of Iowa
Tipo: Artigo de Revista Científica
Publicado em //2012 Português
Relevância na Pesquisa
37.319546%
The deltoid ligament is the primary ligamentous stabilizer of the ankle joint. Both superficial and deep components of the ligament can be disrupted with a rotational ankle fracture, chronic ankle instability, or in late stage adult acquired flatfoot deformity. The role of deltoid ligament repair in these conditions has been limited and its contribution to arthritis is largely unknown. Neglect of the deltoid ligament in the treatment of ankle injuries may be due to difficulties in diagnosis and lack of an effective method for repair. Most acute repair techniques address the superficial deltoid ligament with direct end-to-end repair, fixation through bone tunnels, or suture anchor repair of avulsion injuries. Deep deltoid ligament repair has been described using direct end-to-end repair with sutures, as well as by autograft and allograft tendon reconstruction utilizing various techniques. Newer tenodesis techniques have been described for late reconstruction of both deep and superficial components in patients with stage 4 adult acquired flatfoot deformity.

‣ Current Biomechanical Concepts for Rotator Cuff Repair

Lee, Thay Q
Fonte: The Korean Orthopaedic Association Publicador: The Korean Orthopaedic Association
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
37.246462%
For the past few decades, the repair of rotator cuff tears has evolved significantly with advances in arthroscopy techniques, suture anchors and instrumentation. From the biomechanical perspective, the focus in arthroscopic repair has been on increasing fixation strength and restoration of the footprint contact characteristics to provide early rehabilitation and improve healing. To accomplish these objectives, various repair strategies and construct configurations have been developed for rotator cuff repair with the understanding that many factors contribute to the structural integrity of the repaired construct. These include repaired rotator cuff tendon-footprint motion, increased tendon-footprint contact area and pressure, and tissue quality of tendon and bone. In addition, the healing response may be compromised by intrinsic factors such as decreased vascularity, hypoxia, and fibrocartilaginous changes or aforementioned extrinsic compression factors. Furthermore, it is well documented that torn rotator cuff muscles have a tendency to atrophy and become subject to fatty infiltration which may affect the longevity of the repair. Despite all the aforementioned factors, initial fixation strength is an essential consideration in optimizing rotator cuff repair. Therefore...

‣ Comparison of Three Surgical Methods in Treatment of Patients with Pilonidal Sinus: Modified Excision and Repair/Wide Excision/Wide Excision and Flap in RASOUL, OMID and SADR Hospitals( 2004–2007)

Hosseini, Mostafa; Heidari, Afshin; Jafarnejad, Babak
Fonte: Springer India Publicador: Springer India
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
37.29341%
This study is a comparison between three methods that are frequently used for the surgical treatment of pilonidal disease all over the world: modified excision and repair, wide excision and secondary repair, and wide excision and flap. The first technique is done by our group for the first time, and has not been described previously in the literature. This is an interventional study performed at Omid, Sadr, and Rasoul Akram hospitals on patients who had undergone operation because of pilonidal sinus disease and met the inclusion criteria between 2004 and 2007. Exclusion criteria were (1) acute pilonidal sinus diseases, (2) history of pilonidal sinus surgery, (3) history of systemic diseases (DM, malignancy, etc.), and (4) pilonidal abscess. Essential information was extracted from complete medical archives. Any data not available in files or during follow-up visits (all patients supposed to be followed at least for 1 year) were gathered by a telephone interview. A total of 194 patients met the criteria and had complete archived files. Longer duration of hospital stay was found in the “wide excision and closing with flap” method comparing with two other methods (P < 0.05). Length of incapacity for work was not different between the “wide excision and modified repair” and “wide excision” (P > 0.5) methods...

‣ Minimally invasive valve sparing mitral valve repair—the loop technique—how we do it

Jacobs, Stephan; Sündermann, Simon H.
Fonte: AME Publishing Company Publicador: AME Publishing Company
Tipo: Artigo de Revista Científica
Publicado em /11/2013 Português
Relevância na Pesquisa
47.21585%
Mitral valve insufficiency is the second most common heart valve disease, with untreated regurgitation leading to enlargement of the left atrium (LA), atrial fibrillation and heart failure. Besides functional regurgitation, the main cause is degenerative valve disease with elongation of the chordae tendineae and prolapsing of the leaflets. Surgical repair is the gold standard therapy for mitral valve insufficiency today. Recently, the implantation of neochordae (the “loop-technique”) has been established and is the preferred technique in many centres including ours. Results of surgical mitral valve repair are good with low rates of re-intervention and mortality. With minimally invasive techniques, patient satisfaction is high and hospital stay is short. In conclusion, mitral valve repair should be the preferred strategy in patients with symptomatic mitral valve insufficiency or with asymptomatic mitral valve insufficiency in accordance with the guidelines. Modern repair techniques like neo-chord implantation with the loop-technique combined with minimally invasive access routes result in low mortality and morbidity and short hospital stay as well as high patient satisfaction.

‣ Unilateral Cleft Lip and Nasal Repair: Techniques and Principles

Meara, John Gerard; Andrews, Brian T.; Ridgway, Emily B.; Raisolsadat, Mohammad-Ali; Hiradfar, Mehran
Fonte: Tehran University of Medical Sciences Publicador: Tehran University of Medical Sciences
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.154697%
The Mashhad University of Medical Sciences and the Sheikh Hospital in Mashhad sponsored a Cleft Lip and Palate Workshop 30 April – 1 May 2009. During the Workshop, 6 surgical cases were performed and televised live to the audience attending the conference. Two of those cases were unilateral cleft lip repairs. The surgical technique used to repair these patients by the primary author (JGM) is a hybrid technique. It has evolved over the last decade as a result of prior surgical literature as well as first hand observation of various surgical colleagues. The following manuscript describes the surgical technique used at the Cleft Workshop in a step-wise or atlas-like fashion. The technique portion of the paper describes the repair of the unilateral cleft lip and nasal deformity in roughly the order the first author typically performs the procedure. More importantly, the final section of the paper details the principles that form the foundation for the techniques described.

‣ Basic science of anterior cruciate ligament injury and repair

Kiapour, A. M.; Murray, M. M.
Fonte: British Editorial Society of Bone and Joint Surgery Publicador: British Editorial Society of Bone and Joint Surgery
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.104497%
Injury to the anterior cruciate ligament (ACL) is one of the most devastating and frequent injuries of the knee. Surgical reconstruction is the current standard of care for treatment of ACL injuries in active patients. The widespread adoption of ACL reconstruction over primary repair was based on early perception of the limited healing capacity of the ACL. Although the majority of ACL reconstruction surgeries successfully restore gross joint stability, post-traumatic osteoarthritis is commonplace following these injuries, even with ACL reconstruction. The development of new techniques to limit the long-term clinical sequelae associated with ACL reconstruction has been the main focus of research over the past decades. The improved knowledge of healing, along with recent advances in tissue engineering and regenerative medicine, has resulted in the discovery of novel biologically augmented ACL-repair techniques that have satisfactory outcomes in preclinical studies. This instructional review provides a summary of the latest advances made in ACL repair. Cite this article: Bone Joint Res 2014;3:20–31.

‣ Cell Seeding Densities in Autologous Chondrocyte Implantation Techniques for Cartilage Repair

Foldager, Casper Bindzus; Gomoll, Andreas H.; Lind, Martin; Spector, Myron
Fonte: SAGE Publications Publicador: SAGE Publications
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.21585%
Cartilage repair techniques have been among the most intensively investigated treatments in orthopedics for the past decade, and several different treatment modalities are currently available. Despite the extensive research effort within this field, the generation of hyaline cartilage remains a considerable challenge. There are many parameters attendant to each of the cartilage repair techniques that can affect the amount and types of reparative tissue generated in the cartilage defect, and some of the most fundamental of these parameters have yet to be fully investigated. For procedures in which in vitro–cultured autologous chondrocytes are implanted under a periosteal or synthetic membrane cover, or seeded onto a porous membrane or scaffold, little is known about how the number of cells affects the clinical outcome. Few published clinical studies address the cell seeding density that was employed. The principal objective of this review is to provide an overview of the cell seeding densities used in cell-based treatments currently available in the clinic for cartilage repair. Select preclinical studies that have informed the use of specific cell seeding densities in the clinic are also discussed.

‣ Evolution of Autologous Chondrocyte Repair and Comparison to Other Cartilage Repair Techniques

Dewan, Ashvin K.; Gibson, Matthew A.; Elisseeff, Jennifer H.; Trice, Michael E.
Fonte: Hindawi Publishing Corporation Publicador: Hindawi Publishing Corporation
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.104497%
Articular cartilage defects have been addressed using microfracture, abrasion chondroplasty, or osteochondral grafting, but these strategies do not generate tissue that adequately recapitulates native cartilage. During the past 25 years, promising new strategies using assorted scaffolds and cell sources to induce chondrocyte expansion have emerged. We reviewed the evolution of autologous chondrocyte implantation and compared it to other cartilage repair techniques. Methods. We searched PubMed from 1949 to 2014 for the keywords “autologous chondrocyte implantation” (ACI) and “cartilage repair” in clinical trials, meta-analyses, and review articles. We analyzed these articles, their bibliographies, our experience, and cartilage regeneration textbooks. Results. Microfracture, abrasion chondroplasty, osteochondral grafting, ACI, and autologous matrix-induced chondrogenesis are distinguishable by cell source (including chondrocytes and stem cells) and associated scaffolds (natural or synthetic, hydrogels or membranes). ACI seems to be as good as, if not better than, microfracture for repairing large chondral defects in a young patient's knee as evaluated by multiple clinical indices and the quality of regenerated tissue. Conclusion. Although there is not enough evidence to determine the best repair technique...

‣ Cleft palate repair and variations

Agrawal, Karoon
Fonte: Medknow Publications Publicador: Medknow Publications
Tipo: Artigo de Revista Científica
Publicado em /10/2009 Português
Relevância na Pesquisa
37.453677%
Cleft palate affects almost every function of the face except vision. Today a child born with cleft palate with or without cleft lip should not be considered as unfortunate, because surgical repair of cleft palate has reached a highly satisfactory level. However for an average cleft surgeon palatoplasty remains an enigma. The surgery differs from centre to centre and surgeon to surgeon. However there is general agreement that palatoplasty (soft palate at least) should be performed between 6-12 months of age. Basically there are three groups of palatoplasty techniques. One is for hard palate repair, second for soft palate repair and the third based on the surgical schedule. Hard palate repair techniques are Veau-Wardill-Kilner V-Y, von Langenbeck, two-flap, Aleveolar extension palatoplasty, vomer flap, raw area free palatoplasty etc. The soft palate techniques are intravelar veloplasty, double opposing Z-plasty, radical muscle dissection, primary pharyngeal flap etc. And the protocol based techniques are Schweckendiek's, Malek's, whole in one, modified schedule with palatoplasty before lip repair etc. One should also know the effect of each technique on maxillofacial growth and speech. The ideal technique of palatoplasty is the one which gives perfect speech without affecting the maxillofacial growth and hearing. The techniques are still evolving because we are yet to design an ideal one. It is always good to know all the techniques and variations so that one can choose whichever gives the best result in one's hands. A large number of techniques are available in literature...

‣ Cartilage repair techniques in the knee: stem cell therapies

Yoshiya, Shinichi; Dhawan, Aman
Fonte: Springer US Publicador: Springer US
Tipo: Artigo de Revista Científica
Publicado em 15/09/2015 Português
Relevância na Pesquisa
56.953066%
Among the surgical options for large full-thickness chondral injuries, cell-based therapy has been practiced and its satisfactory outcomes have been reported. One area that appears promising is cell-based therapies utilizing stem cells. Various tissues within the human body contain mesenchymal stem cells (MSCs) from where these can be harvested. These include bone marrow, adipose, synovium, peripheral blood, and umbilical cord. In this article, both preclinical animal studies and clinical studies dealing with the use of MSCs for cartilage repair of the knee are reviewed. Majority of the clinical papers have shown promising results; however, there are a limited number of studies of high evidence level. Clinical significance of the stem cell therapy as compared to other surgical options as well as optimization of the procedure in terms of cell type and delivery method is still to be determined.

‣ Knee cartilage defect: marrow stimulating techniques

Mirza, M. Zain; Swenson, Richard D.; Lynch, Scott A.
Fonte: Springer US Publicador: Springer US
Tipo: Artigo de Revista Científica
Publicado em 28/09/2015 Português
Relevância na Pesquisa
46.81148%
Painful chondral defects of the knee are very difficult problems. The incidence of these lesions in the general population is not known since there is likely a high rate of asymptomatic lesions. The rate of lesions found during arthroscopic exam is highly variable, with reports ranging from 11 to 72 % Aroen (Aroen Am J Sports Med 32: 211-5, 2004); Curl(Arthroscopy13: 456-60, 1997); Figueroa(Arthroscopy 23(3):312-5, 2007;); Hjelle(Arthroscopy 18: 730-4, 2002). Examples of current attempts at cartilage restoration include marrow stimulating techniques, ostochondral autografts, osteochondral allografts, and autologous chondrocyte transplantation. Current research in marrow stimulating techniques has been focused on enhancing and guiding the biology of microfracture and other traditional techniques. Modern advances in stem cell biology and biotechnology have provided many avenues for exploration. The purpose of this work is to review current techniques in marrow stimulating techniques as it relates to chondral damage of the knee.

‣ Neonatal Mitral Valve Repair in Biventricular Repair, Single Ventricle Palliation, and Secondary Left Ventricular Recruitment: Indications, Techniques, and Mid-Term Outcomes

Myers, Patrick O.; Baird, Christopher W.; del Nido, Pedro J.; Pigula, Frank A.; Lang, Nora; Marx, Gerald R.; Emani, Sitaram M.
Fonte: Frontiers Media S.A. Publicador: Frontiers Media S.A.
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
47.246465%
Objectives: Although mitral valve repair is rarely required in neonates, this population is considered to be at high risk for adverse outcomes. The aim of this study was to review the indications for surgery, mechanisms, repair techniques, and mid-term outcomes of neonatal mitral valve repair. Methods: The demographic, procedural, and outcome data were obtained for all neonates who underwent mitral valve repair from 2005 to 2012. The primary endpoints included mortality, transplantation, and mitral valve reoperation. Results: Twenty patients were included during the study period. Median age at operation was 11 days (range: 3–25). Eleven patients (55%) presented with mitral stenosis, three had regurgitation (15%), and six had mixed mitral disease (30%). Nineteen of 20 patients had mild or less regurgitation on immediate postoperative imaging. During a median follow-up of 5 months (1 month–4.8 years), six patients died at a median of 33 months (7–41 months) from repair and one patient required orthotopic heart transplantation. Six patients required mitral valve reoperation, five for mitral valve re-repair, and one for mitral valve replacement. Freedom from death, transplantation, or mitral valve replacement was 84.2 ± 8.4% at 1 month...

‣ Surgical repair of congenital mitral valve malformations

Curi-Curi,Pedro; Ramírez-Marroquín,Samuel; Cervantes-Salazar,Jorge; Soulé,Mauricio; Erdmenger,Julio; Calderón-Colmenero,Juan
Fonte: Elsevier Publicador: Elsevier
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/06/2010 Português
Relevância na Pesquisa
46.969473%
Surgical development of mitral valve repair techniques in pediatric patients has been slow because of the great variety in the presentation of congenital mitral valve malformations and the still unknown growing effect over the complex mitral valve apparatus. The aim of this study is to review our early an mid-term institutional outcomes in surgical repair of congenital mitral valve malformations. We studied retrospectively 14 patients with surgical repair of congenital mitral valve malformations in a 5 year period. Clinical and echocardiographic follow-up at a mean of 25 months was performed in all cases. Operative morbidity was 77% and operative mortality 7%. There were no late deaths. Clinical functional class stratification at the mid-term improved in 73% of survivors and did not change in the remaining 27%. Freedom from reoperation for mitral valve prosthetic replacement due to mitral valve repair failure was 84% at 30 days and 77% at 3.5 years. Surgical repair is probably the best technique option in the treatment of congenital malformations of the mitral valve, and transesophageal intraoperatory echocardiography must be highly recommended for evaluation of results.