NATHALI CORDEIRO PINTO
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina
LIM/11 - Laboratório de Cirurgia Cardiovascular e Fisiopatologia da Circulação, Hospital das Clínicas, Faculdade de Medicina
LIM/11 - Laboratório de Cirurgia Cardiovascular e Fisiopatologia da Circulação, Hospital das Clínicas, Faculdade de Medicina
14 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 14
- Is it possible to prevent morbidity on post cardiovascular surgery applying low level laser therapy?(2014) PINTO, Nathali Cordeiro; BAPTISTA, Ivany Machado de Carvalho; PEREIRA, Mara Helena Corso; SERRAO JUNIOR, Nelson Francisco; POMERANTZEFF, Pablo M. A.; CHAVANTES, Maria CristinaBackground and Objective: Complications following cardiovascular surgery incision are common in mediastinitis and wound dehiscence form, a 47% mortality rate remaining. Low Level Laser Therapy (LLLT) has been employed mainly to its effectiveness analgesic and anti-inflammatory actions, aiding the tissue repair process. The aim of this study was to evaluate infrared LLLT onto surgical incision in patients submitted to cardiovascular surgery. Materials and Methods: 40 patients were divided in two groups: Placebo Group (G1) - conventional therapy + ""Laser pointer"" and Laser Group (G2) - conventional therapy + Infrared Laser irradiation on surgical incision. Diode Laser was employed, C. W. mode, around the surgical wound bed, on immediate Post Operative (PO), 1st PO and 3rd PO with the following parameters: wavelength (lambda): 830nm, P=35mW, E=0,75J. Results: G2 didn't present any complication and 5% of patients in G1 developed incision dehiscence and infection. On 7thPO, still a large amount of G1 patients showed pain and unquestionable inflammatory signs surrounding the surgical wound, when compared to G2. Besides, hospital stay in Laser Group was 2 times shorter than in Placebo Group (p-value=0.001). Conclusion: Infrared Laser denoted to be safe and exceptionally valuable tools in preventing morbidities on post cardiovascular surgeries.
conferenceObject LASER THERAPY: AN ADJUVANT TREATMENT IN ACUTE AND CHRONIC WOUNDS REPAIRING(2013) BAPTISTA, Ivany; CHAVANTES, Maria Cristina; PINTO, Nathali; MONETTA, LinaconferenceObject LOW LEVEL LASER THERAPY IMPROVES CARDIOVASCULAR AUTONOMIC ACTIVITY IN SPONTANEOUSLY HYPERTENSIVE RATS(2015) SILVA, Bianca; TOMIMURA, Suely; SANCHES, Iris; CANAL, Marina; PINTO, Nathali; MADI, Otavio; CONTI, Felipe; ANGELIS, Katia De; COLOMBO, Fernanda; CHAVANTES, M. CristinaconferenceObject ANALYSIS OF OPTICAL DOSIMETRY IN RAT-TAIL MAY CORROBORATE TRANSCUTANEOUS LOW-LEVEL LASER THERAPY IN BLOOD RESPONSE(2013) SOUSA, Marcelo; PINTO, Nathali; YOSHIMURA, Elisabeth; CANAL, Marina; NAKATA, Leticia; PEREIRA, Mara; MARTINS, Luis; CHAVANTES, Maria Cristina- Post-operative uses of low-level laser therapy(2016) CHAVANTES, M. C.; PINTO, N. C.; HOLANDA, V. M.In our surgical experience, the use of low-level laser therapy (LLLT) can decrease complications in several major surgeries such as neurosurgery, major abdominal surgery (bariatric surgery), breast reconstruction (TRAM flap) surgical procedures, major burn surgery, and thoracic-cardiovascular surgery. LLLT can accelerate tissue repair, facilitating cicatrization and providing an analgesic effect in post-surgical pain. LLLT can also prevent morbidity, avoiding undesirable outcomes that could be evolving to post-operative death [1]. Although no single tool or technique is yet available to address the many complex issues surgeons face in their everyday practice, this remarkable devicemay be highly beneficial for patients by mitigating their suffering and quite rewarding for doctors. © 2017 Pan Stanford Publishing Pte. Ltd.
conferenceObject HEMODYNAMIC CHANGES POST LOW LEVEL LASER THERAPY IN ELDERLY OBESE RATS: AN EXPERIMENTAL STUDY(2013) CANAL, Marina; CONTI, Filipe; PINTO, Nathali; PINTO, Michael; SILVA, Bianca; SANCHES, Iris; DUARTE, Ivone; ANGELIS, Katia De; CONSOLIM-COLOMBO, Fernanda; CHAVANTES, Maria CristinaconferenceObject LOW LEVEL LASER THERAPY'S EFFECT RELATING TO THE ELECTROMYOGRAPHIC ACTIVITY AND THE POSTURE IN THE TEMPOROMANDIBULARS DISORDERS: PILOT STUDY(2012) SERRAO, Nelson; MARTINICHEN, Marcia; MAGNANI, Rina; PINTO, Nathali; CHAVANTES, Maria Cristina- The use of a high-power laser on swine mitral valve chordae tendineae(2016) PINTO, Nathali Cordeiro; CHAVANTES, M. Cristina; ZEZELL, Denise; DEANA, Alessandro; BENETTI, Carolina; MARCOS, Rodrigo Labat; LOPES, Luciana Almeida; MARTINS, Rodrigo A. B. Lopes; AIELLO, Vera Demarchi; JATENE, Fabio Biscegli; POMERANTZEFF, Pablo M. A.Worldwide, rheumatic fever remains a significant cause of mitral valve insufficiency. It is responsible for approximately 90 % of early childhood valvular surgeries in Brazil. Elongated or flail chordae are frequently responsible and require surgical correction. The purpose of this study was to analyze and compare the histological tissues of the mitral valve chordae and the mechanical resistance generated by the chordae, both with and without the application of a high-power laser. Twenty normal porcine mitral valve chordae were measured and divided randomly into the following two groups: control group (not subjected to a high-power laser) and laser group (subjected to photonic irradiation). Laser surgery was performed under controlled conditions, using following parameters: lambda = 980-nm wavelength, power = 3 W, and energy = 60 J. A mechanical test machine was used in combination with a subsequent histological study to measure chordae tensile properties. A histological analysis demonstrated a typical collagen bundle arrangement in the control group; however, under a particular reached temperature range (48), the collagen bundles assumed different arrangements in the laser group. Significant reductions in the chordae tendineae lengths and changes in their resistance in the laser group were observed, as these chordae exhibited less rigid fibers. The chordae tendineae of normal porcine valves subjected to a high-power laser exhibited its length reduction and less stiffness compared to the control group. A histological analysis of the laser treatment specimens demonstrated differences in collagen bundle spatial organization, following slight changes into tissue temperature.
conferenceObject BAROPODOMETRIC AND STABILOMETRIC ANALYSIS IN TEMPOROMANDIBULAR DISORDERS PRE AND POST LOW LEVEL LASER THERAPY(2012) SERRAO, Nelson; SILVA, Maciel Rodrigues da; MAGNANI, Rina; PINTO, Nathali; CHAVANTES, Maria Cristina- Low-Level Laser Therapy Prevents Prodromal Signal Complications on Saphenectomy Post Myocardial Revascularization(2014) PINTO, Nathali Cordeiro; PEREIRA, Mara Helena Corso; TOMIMURA, Suely; MAGALHAES, Ana Carolina de; POMERANTZEFF, Pablo M.; CHAVANTES, Maria CristinaBackground and objective: One of the most frequent treatments for ischemic heart disease is myocardial revascularization, often applying the saphenous vein as a coronary graft. However, postoperative complications may occur, such as saphenous dehiscence. According to the literature, low-level laser therapy (LLLT) has been used in the treatment of several inflammatory processes in patients. Recently, its uses have expanded to include LLLT preventive therapy and postoperative treatment. Despite our department's successful application of LLLT in the treatment of saphenectomy incisions, many colleagues are still uncertain as to laser theraphy's benefits. Therefore, the study's purpose was to evaluate tissue repair of prodromal surgical incisions after the administration of LLLT. Materials and methods: The pilot study included 14 patients, divided into two groups. Both groups of patients received the traditional treatment; additionally, the Laser Group (n = 7) received diode laser treatment (lambda = 780 nm, fluence = 19 J/cm(2), pulse = 25 mW, time = 30 sec, energy = 0.75 J, irradiance = 625 mW/cm(2), beam spot size 0.04 cm(2)), which was applied on the edges of the saphenectomy incision. The Control Group (n = 7) received conventional treatment exclusively. Results: In the Laser Group: all seven patients showed significant improvement, whereas the Control Group had twice as many complications, including critical rates of incisional dehiscence. Conclusions: LLLT was valuable in preventing prodromal complications in saphenectomy post myocardial revascularization.