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1.
Br J Surg ; 111(2)2024 Jan 31.
Artigo em Inglês | MEDLINE | ID: mdl-38298070

RESUMO

BACKGROUND: To restore sensation after breast reconstruction, a modified surgical approach was employed by identifying the cut fourth intercostal lateral cutaneous branch, elongating it with intercostal nerve grafts, and coapting it to the innervating nerve of the flap or by using direct neurotization of the spared nipple/skin. METHODS: This was a retrospective case-control study including 56 patients who underwent breast neurotization surgery. Breast operations included immediate reconstruction after nipple-sparing mastectomy (36 patients), skin-sparing mastectomy (8 patients), and delayed reconstruction with nipple preservation (7 patients) or without nipple preservation (5 patients). Patients who underwent breast reconstruction without neurotization were included as the non-neurotization negative control group. The contralateral normal breasts were included as positive controls. RESULTS: The mean(s.d.) monofilament test values were 0.07(0.10) g for the positive control breasts and 179.13(143.31) g for the breasts operated on in the non-neurotization group. Breasts that underwent neurotization had significantly better sensation after surgery, with a mean(s.d.) value of 35.61(92.63) g (P < 0.001). The mean(s.d.) sensory return after neurotization was gradual; 138.17(143.65) g in the first 6 months, 59.55(116.46) g at 7-12 months, 14.54(62.27) g at 13-18 months, and 0.37(0.50) g at 19-24 months after surgery. Two patients had accidental rupture of the pleura, which was repaired uneventfully. One patient underwent re-exploration due to a lack of improvement 1.5 years after neurotization. CONCLUSION: Using the lateral cutaneous branch of the intercostal nerve as the innervating stump and elongating it with intercostal nerve grafts is a suitable technique to restore sensation after mastectomy. This method effectively innervates reconstructed breasts and spares the nipple/skin with minimal morbidity.


Assuntos
Neoplasias da Mama , Mamoplastia , Mastectomia Subcutânea , Transferência de Nervo , Humanos , Feminino , Mastectomia/métodos , Neoplasias da Mama/cirurgia , Mamilos/cirurgia , Estudos de Casos e Controles , Estudos Retrospectivos , Nervos Intercostais/cirurgia , Mamoplastia/métodos , Mastectomia Subcutânea/métodos
2.
Int J Geriatr Psychiatry ; 39(1): e6053, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38185829

RESUMO

INTRODUCTION: Mild cognitive impairment (MCI) is a known risk factor for the development of dementia. The potential benefits on cognition from non-pharmacological measures such as art-based interventions are of increasing interest. This systematic review examines the evidence for the impact of one form of art-based intervention, visual art therapy (VAT), on the cognition and psychological wellbeing of older people with MCI. METHODS: Randomised controlled and quasi-experimental trials evaluating the efficacy of VAT in older persons aged over 60 years with MCI were included. A search was performed on electronic databases: MEDLINE, CINAHL, Embase and PsycINFO. Joanna Briggs Institute critical appraisal and extraction tools were utilised for risk of bias assessment and data extraction, respectively. A narrative descriptive approach was used to outline the findings. RESULTS: Seven studies were identified from 4311 articles screened. Improvement in cognition was reported in five studies, with two of these reporting sustained improvement at 6-9 months, while the remaining three studies showed improvement only at the immediate post-intervention period. A positive impact was reported in four of six studies that examined the effect of VAT on participant psychological wellbeing. The overall methodological quality of the studies ranged from moderate in four of five RCTs, to high in the quasi-experimental studies and one RCT. However, the low study power in the context of small sample sizes limits the applicability of these studies to the population of interest. CONCLUSIONS: VAT is potentially an effective non-pharmacological intervention that may enhance cognition and provide benefits for psychological wellbeing in older persons with MCI. Given the limited studies available, with the majority emerging over the last 5 years, further research is required to confirm these reported benefits, as well as to determine whether VAT impacts on the progression of cognitive decline in MCI.


Assuntos
Arteterapia , Disfunção Cognitiva , Humanos , Idoso , Idoso de 80 Anos ou mais , Pessoa de Meia-Idade , Disfunção Cognitiva/terapia , Cognição , Fatores de Risco
3.
Ann Plast Surg ; 92(1S Suppl 1): S45-S51, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38285996

RESUMO

BACKGROUND: Reconstruction of the oral cavity commonly results in trismus and lip incompetence. AIM AND OBJECTIVES: In this study, we aim to describe an innovative design of a radial forearm free flap for resurfacing bilateral buccal defects and simultaneous functional lower lip reconstruction in a single stage. MATERIALS AND METHODS: Between January 2010 and December 2019, 6 males underwent simultaneous buccal and lower lip reconstruction with a radial forearm free flap. The mean age of the patients was 57.3 years (range, 50-68 years). The defects were caused by trismus release and due to previous treatments. The mean size of the defects was 17.9 cm in length and 3.25 cm in width. Flaps were harvested, including the proximal perforators of the radial vessels, and the inset began in the buccal area opposite the anastomosis side. RESULTS: Flap size ranged from 16 to 21 × 2 to 4 cm. The recipient vessels used were the superficial temporal (4) and facial (2). All flaps survived. Lip infection was seen in 2 cases and managed conservatively. The mean follow-up was 19.2 months (range, 12-28 months). The mean increase in the interincisal distance was 10.7 mm. Oral continence was good in all patients. Speech intelligibility was considered total in 4 patients and partial in the remaining 2. CONCLUSION: The radial forearm flap constitutes an option for simultaneous lower lip reconstruction and resurfacing of bilateral buccal areas after trismus release. The procedure provides a thin and pliable reconstruction using only 1 donor site and 1 set of recipient vessels.


Assuntos
Lábio , Procedimentos de Cirurgia Plástica , Masculino , Humanos , Pessoa de Meia-Idade , Idoso , Lábio/cirurgia , Antebraço/cirurgia , Trismo/cirurgia , Retalhos Cirúrgicos/cirurgia
4.
Microsurgery ; 44(1): e31046, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37038715

RESUMO

BACKGROUND: The deep inferior epigastric artery perforator (DIEP) flap is widely used in breast reconstruction and the profunda artery perforator (PAP) flap as alternative. However, the difference between the two flaps in smaller breast reconstruction remains lacking, in particular, the donor site complications. In this case series, the results of small breast reconstruction (≤300 g) using PAP or small DIEP flaps were explored. METHODS: Unilateral immediate breast reconstruction using a free PAP flap or small DIEP flap (≤300 g) from 2011 to 2021 were reviewed retrospectively. Excluding patients with delayed reconstruction, 28 patients, including 17 PAP flaps and 11 small DIEP flaps were enrolled. Flap characteristics, breast and donor site complications, and revision surgeries were reviewed. BREAST-Q™ was used for quality-of-life assessment. RESULTS: Compared with a small DIEP flap, a PAP flap was narrow (7.5 ± 1.1 vs. 10.6 ± 0.7 cm, p < .001), short (20.0 ± 2.6 vs. 25.5 ± 1.8 cm, p < .001) and had a shorter pedicle (5.9 ± 1.6 vs. 9.1 ± 1.0 cm, p < .001). There were no significant differences in acute and late complications of wound healing and fat necrosis, but the average number of revisions in the PAP group was significantly higher (1.9 ± 1.3 vs. 0.8 ± 1.4, p = .041). Patient-reported outcomes using BREAST-Q™ displayed no significant difference between the two groups. CONCLUSION: The outcomes of PAP and small DIEP flaps at the breasts and donor sites are satisfactory, despite that a higher tendency of donor site complications in PAP flap and more aesthetic refinement required in the PAP group. The overall outcomes are acceptable.


Assuntos
Neoplasias da Mama , Mamoplastia , Retalho Perfurante , Humanos , Feminino , Retalho Perfurante/irrigação sanguínea , Artérias Epigástricas/cirurgia , Estudos Retrospectivos , Mamoplastia/métodos , Artérias , Neoplasias da Mama/cirurgia
5.
J Reconstr Microsurg ; 40(7): 504-510, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38176429

RESUMO

BACKGROUND: With the success of free autologous breast reconstruction, the abdominal donor site is now an important consideration, especially in patients of childbearing age. In our institution, there are increasing patients who have successfully undergone the deep inferior epigastric artery perforator (DIEP) flap despite previous pregnancy. This study aims to answer questions on the effect of the donor site on pregnancy and vice versa. METHODS: A retrospective cohort study was conducted to identify breast cancer patients who received a free DIEP flap for breast reconstruction from January 2018 to August 2020. Patients were allocated to two groups according to whether they had prior pregnancies with successful deliveries. Demographics, flap-related parameters, surgical outcomes on breast and abdomen, and patient-reported outcome (Breast-Q questionnaire) were analyzed. Patients were excluded if follow-up time was less than 1 year, or if there was incomplete medical records or Breast-Q replies. RESULTS: Ninety-nine of 116 patients had had successful pregnancies with delivery, 17 of them remained nulliparous. No statistically significant differences existed between groups regarding demographic data, flap-related parameters, surgical outcomes on breast and abdomen. Nulliparous patients exhibited significantly lower score in physical well-being in the abdomen domain compared with delivery-experienced patients (62.1 vs. 73.4, p = 0.025). Significantly, nulliparous patients felt more tightness and pulling of the abdominal wall than the delivery-experienced patients (2.9 vs. 3.7; p = 0.05 and 3.5 vs. 4.0; p = 0.04). CONCLUSION: Free DIEP flap can be transferred safely in nulliparous patients despite a slight increase in abdominal tightness and abdominal pulling. Precise flap design and surgical approaches may help to minimize the abdominal discomfort especially on young, normal body mass index, and nonchildbearing patients.


Assuntos
Artérias Epigástricas , Mamoplastia , Satisfação do Paciente , Retalho Perfurante , Humanos , Feminino , Mamoplastia/métodos , Mamoplastia/psicologia , Estudos Retrospectivos , Retalho Perfurante/irrigação sanguínea , Artérias Epigástricas/transplante , Adulto , Gravidez , Neoplasias da Mama/cirurgia , Neoplasias da Mama/psicologia , Pessoa de Meia-Idade , Sítio Doador de Transplante , Paridade , Medidas de Resultados Relatados pelo Paciente
6.
Ann Plast Surg ; 90(1 Suppl 1): S68-S74, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-37075296

RESUMO

BACKGROUND: Large defects of the lower lip pose a difficult challenge for any reconstructive surgeon. When there is limited local tissue available to resurface the defects, free flaps are the preferred option. AIM AND OBJECTIVES: We reported our experience in the reconstruction of extensive lower lip defects. The authors propose a new algorithm for microsurgical technique selection and assessment of the functional outcomes obtained. MATERIALS AND METHODS: A retrospective review of all microsurgical reconstructions of extensive lower lip defects by the senior author for 10 years was performed. The functional outcomes assessed included speech, feeding, and oral continence. Patients were stratified according to their status of simultaneous mandible resection (none, marginal, segmental). RESULTS: Fifty-one patients were included in this study. Almost all patients (96.1%) achieved intelligible speech. Only 1 patient experienced severe drooling. Most patients could eat a solid or soft diet (72.5%). Mandible resection was associated with the worst feeding outcomes. CONCLUSIONS: Microsurgical reconstruction of extensive lip defects is safe and provides good results. Free flap selection should take into account the location of the defect, the resected structures, and the body mass index of the patient. Feeding status seems to be inversely correlated with the amount of mandibular resection.


Assuntos
Retalhos de Tecido Biológico , Neoplasias Labiais , Procedimentos de Cirurgia Plástica , Humanos , Lábio/cirurgia , Neoplasias Labiais/cirurgia , Estudos Retrospectivos , Algoritmos
7.
Ann Plast Surg ; 90(1 Suppl 1): S37-S43, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36752513

RESUMO

BACKGROUND: Marginal mandibulectomy with or without additional mandibulotomy could represent the alternatives to avoid segmental mandibulectomy in carefully selected tongue cancers. AIM AND OBJECTIVES: This study investigated a subgroup of tongue cancers with suspected involvement to the alveolar bone because of the shallow and deformed mouth floor. We aimed to compare the functional outcomes, postoperative complications, and disease control efficacy between the 2 different marginal mandibulectomy approaches, with or without additional mandibulotomy. MATERIALS AND METHODS: A retrospective study of 29 marginal mandibulectomies and 26 combined mandibulotomies for tongue cancer wide excisions and flap reconstruction at Chang Gung Memorial Hospital Linkou Branch during 2014 to 2019 was performed. RESULTS: The combined mandibulotomy group had more advanced T-status ( P < 0.001) and greater tumor diameters ( P < 0.001) but not increased preexisting trismus, bone invasions, or positive margins. The additional mandibulotomy increased flap necrosis ( P = 0.044), late infections ( P = 0.004), and tongue movement limitations ( P = 0.044) but not osteoradionecrosis. Osteoradionecrosis was unrelated to the resected mandibular length or the mandibulotomy sites. Feeding tube dependence was greater in the combined group at discharge ( P = 0.014), but no long-term differences were noted. Kaplan-Meier overall survival ( P = 0.052) and disease-free survival ( P = 0.670) were both comparable between the 2 groups. CONCLUSIONS: The combined procedure of mandibulotomy and marginal mandibulectomy in large tongue cancers without bone invasions is associated with increased soft tissue-related complications but not bone-related complications. However, comparable disease control, survival, and long-term tube feeding outcomes were noted.


Assuntos
Neoplasias Bucais , Osteorradionecrose , Neoplasias da Língua , Humanos , Osteotomia Mandibular/efeitos adversos , Neoplasias da Língua/cirurgia , Neoplasias da Língua/complicações , Neoplasias Bucais/cirurgia , Mandíbula/cirurgia , Mandíbula/patologia , Estudos Retrospectivos
8.
J Reconstr Microsurg ; 38(8): 654-663, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35213928

RESUMO

BACKGROUND: Superficial temporal vessels have been used successfully as recipient vessels for head and neck reconstruction. This study evaluates the impact of several treatment variables on flap failure and take-back rate when using these recipient vessels. METHODS: We conducted a retrospective study of all microsurgical reconstructions using superficial temporal vessels as recipient vessels in a period of 10 years. Variables collected included previous treatments (radiotherapy, chemotherapy, neck dissection, free flap reconstruction), type of flaps used (soft tissue, osteocutaneous), and vessel size discrepancy between donor and recipient vessels. RESULTS: A total of 132 patients were included in the study. The flap success rate was 98.5%. The take-back rate was 10.6%. The most frequent reason for take-back was venous congestion secondary to thrombosis. None of the studied variables was associated with flap failure. Reconstructions using osteocutaneous flaps and vein diameter discrepancy (ratio ≥ 2:1) had significantly higher take-back rates. CONCLUSION: Flaps with a significant size discrepancy between donor and recipient veins (ratio ≥ 2:1) and fibula flaps (compared with soft tissue flaps) were associated with a higher risk of take-back. It is crucial to minimize venous engorgement during flap harvest and anastomosis, and limit vein redundancy during flap in-setting.


Assuntos
Retalhos de Tecido Biológico , Procedimentos de Cirurgia Plástica , Anastomose Cirúrgica , Retalhos de Tecido Biológico/irrigação sanguínea , Humanos , Esvaziamento Cervical , Complicações Pós-Operatórias , Estudos Retrospectivos , Veias/cirurgia
9.
Build Environ ; 225: 109640, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36210963

RESUMO

SARS-CoV-2 has been recognized to be airborne transmissible. With the large number of reported positive cases in the community, home quarantine is recommended for the infectors who are not severely ill. However, the risks of household aerosol transmission associated with the quarantine room operating methods are under-explored. We used tracer gas technique to simulate the exhaled virus laden aerosols from a patient under home quarantine situation inside a residential testbed. The Sulphur hexafluoride (SF6) concentration was measured both inside and outside the quarantine room under different operating settings including, air-conditioning and natural ventilation, presence of an exhaust fan, and the air movement generated by ceiling or pedestal fan. We calculated the outside-to-inside SF6 concentration to indicate potential exposure of occupants in the same household. In-room concentration with air-conditioning was 4 times higher than in natural ventilation settings. Exhaust fan operation substantially reduced in-room SF6 concentration and leakage rate in most of the ventilation scenarios, except for natural ventilation setting with ceiling fan. The exception is attributable to the different airflow patterns between ceiling fan (recirculates air vertically) and pedestal fan (moves air horizontally). These airflow variations also led to differences in SF6 concentration at two sampling heights (0.1 m and 1.7 m) and SF6 leakage rates when the quarantine room door was opened momentarily. Use of natural ventilation rather than air-conditioning, and operating exhaust fan when using air-conditioning are recommended to lower exposure risk for home quarantine. A more holistic experiment will be conducted to address the limitations reflected in this study.

10.
Indoor Air ; 31(3): 795-806, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33215777

RESUMO

The performance of a low-cost fan filter unit (FFU) in mitigating hazardous particulate matter (PM) levels in a naturally ventilated school classroom is presented. The FFU can be considered as a simplified mechanical ventilation and air-conditioning system without heating and cooling functions. The FFU improves indoor air quality through introduction of cleaned outdoor air to flush out internally generated heat and moisture and reducing infiltration by maintaining indoor pressurization. Indoor particle number concentrations were reduced between 85% and 95%. The particle removal performance (PRFFFU ) of the FFU is determined and incorporated into the augmented façade penetration factor (Paug ). A case-specific recursive dynamic mass balance model is used to characterize the infiltration factor (FINF ), deposition rate (K), and the penetration efficiency (Paug ) from continuously monitored indoor and outdoor mass concentration levels. Computed "Paug " (0.07, 0.09, and 0.13) and "FINF " (0.06, 0.08, and 0.11), respectively, for PM10, PM2.5, and PM1 suggest that exposure to PM was significantly reduced indoors. The effectiveness of the FFU for reduced "FINF " and "Paug " may be attributed to its superior filtration, dilution, and exfiltration mechanisms. In comparison with alternative PM mitigation solutions, the FFU is effective, affordable, and sustainable.


Assuntos
Poluição do Ar em Ambientes Fechados , Monitoramento Ambiental , Material Particulado , Ar Condicionado , Poluentes Atmosféricos , Habitação , Humanos , Modelos Teóricos , Tamanho da Partícula , Instituições Acadêmicas
11.
Ann Plast Surg ; 86(2S Suppl 1): S84-S90, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33438957

RESUMO

BACKGROUND: Dexamethasone (Dexa) is frequently administrated to patients receiving head and neck microsurgical reconstruction with nasotracheal intubation postoperatively for airway control. Infection is the greatest concern when prolonging the treatment course. We aimed to find out the relationship between flap infection and the safe dose of Dexa. MATERIALS AND METHODS: A retrospective review of enrolling total 156 patients underwent microsurgical free flap reconstruction for head and neck cancers with nasotracheal intubation from December 2015 to December 2016 was conducted. Among them, 139 patients had received prolonged Dexa treatment course (>2 days). Safe index was then defined as the total amount of used Dexa (in milligrams) over body weight (in kilograms), body mass index (in kilograms per square meter) and body surface area (BSA, in square meter). Statistics were performed for the cutoff level of the safe index and to find out the independent risk factors. RESULTS: The cutoff level of the safe index was 0.76 for body weight group, 2.28 (10-3 m2) for body mass index group, and 33.84 mg/m2 for BSA group. Safe index for BSA group also outweighed other risk factors in multivariant analysis (odds ratio = 6.242, 95% confidence interval = 2.292-17.002, P = 0.000), which is the only independent risk factors for flap infection in our cohort. CONCLUSIONS: Throughout our study, the "safe index" helps clinician easily predict flap infection risk when using Dexa as the medication for airway control after head and neck microsurgical reconstruction.


Assuntos
Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço , Procedimentos de Cirurgia Plástica , Manuseio das Vias Aéreas , Superfície Corporal , Dexametasona , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/prevenção & controle , Estudos Retrospectivos
12.
J Reconstr Microsurg ; 37(6): 475-485, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33202456

RESUMO

BACKGROUND: Patients who undergo total esophagectomy and gastrectomy present a challenging scenario for reconstructive surgeons. Several techniques have been described. However, the best choice is still a matter of debate. We aim to report our experience with the supercharged ileocolic flap, then to compare the long-term functional outcomes in cancer and caustic injury patients. We investigate the safest route of transposition and demonstrate the importance of supercharging the flap. Last, we perform a literature review to compare our results with the ones reported in the literature. METHODS: A total of 36 patients underwent the supercharged ileocolic flap procedure. The details reviewed included the type of defect, flap characteristic, route of transposition, complications, patient survival, and swallowing evaluation. Survival and long-term function preservation were considered as the main outcomes. A secondary end-point was the identification of the safest route of transposition. We extracted the pertinent literature on supercharged bowel flaps from 1995 to July 2020 RESULTS: All flaps survived; only two flaps were partially lost. Thirty-three percent of the cohort experienced postoperative complications; the most common was leakage of the cervical anastomosis (17%), followed by neck wound infection (8%). The 5-year dysphagia-free survival rate was 87% in corrosive injury patients and 78% in cancer patients. The mean time to be free from dysphagia after surgery was 25.12 ± 4.55 months for corrosive patients and 39.56 ± 9.45 months for cancer patients (p = 0.118). The safest route of transposition was retrosternal extra-mediastinal. From the literature review, the data from 11 studies were extracted. CONCLUSION: The supercharged ileocolic flap is a robust option for total esophageal replacement when the stomach is not available and the retrosternal route is the safest for transposition. The functional outcomes are excellent, with acceptable morbidity and a good life expectancy, either in cancer and noncancer patients. Supercharging the flap is recommended.


Assuntos
Esofagectomia , Procedimentos de Cirurgia Plástica , Anastomose Cirúrgica , Gastrectomia , Humanos , Complicações Pós-Operatórias , Retalhos Cirúrgicos
13.
Clin Orthop Relat Res ; 474(3): 677-83, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26013153

RESUMO

BACKGROUND: Long-term survival for all patients with osteosarcoma using current aggressive adjuvant chemotherapy and surgical resection is between 60% and 70%. In patients who present with nonmetastatic, high-grade extremity osteosarcoma of bone, limb salvage surgery is favored, when appropriate, over amputation to preserve the limb, because limb salvage may lead to a superior quality of life compared with amputation. However, concern remains that in the attempt to preserve the limb, close or microscopically positive surgical margins may have an adverse effect on event-free survival. QUESTIONS/PURPOSES: (1) Does a positive or close surgical margin increase the likelihood of a local recurrence? (2) Does a positive or close surgical margin adversely affect the development of metastatic disease? (3) What is the relationship of surgical margin on overall survival? METHODS: With institutional review board approval, we retrospectively evaluated 241 patients treated at our institution between 1999 and 2011. Exclusion criteria included nonextremity locations, metastatic disease at initial presentation, low- or intermediate-grade osteosarcoma, treatment regimens that did not follow National Comprehensive Cancer Network (NCCN) guidelines, incomplete medical records, and any part of treatment performed outside of Moffitt Cancer Center or All Children's Hospital. Fifty-one patients were included in the final analysis, of whom 31 (61%) had followup data at a minimum of 2 years or whose clinical status was known but had died before 2 years of followup. Margin status was defined as (1) microscopically positive; (2) negative ≤ 1 mm; and (3) negative > 1 mm. Margin status, histologic response (tumor percent necrosis), type of osteosarcoma, type of surgery, presence of local recurrence, metastatic disease, and overall survival were recorded for each patient. The mean age was 22 years (range, 12-74 years) and the mean followup was 3 years (range, 0.1-14 years). Margin status was positive in 10% (five of 51), negative ≤ 1 mm 26% (13 of 51), and negative > 1 mm 65% (33 of 51). RESULTS: Local recurrence was noted to be 14% (seven of 51) at 3.4 years. After controlling for relevant confounding variables, the presence of a positive margin compared with a negative margin > 1 mm was the only independent predictor of local recurrence (hazard ratio [HR], 8.006; 95% confidence interval [CI], 1.314-48.781; p = 0.0241). At a mean of 3.4 years, 29% (15 of 51) of the patients developed metastatic disease with no difference with the numbers available in the probability of developing metastatic disease among the three margin groups (p = 0.614). Overall survival at 3.8 years was 75% (38 of 51). After controlling for relevant confounding variables, we found that patients with positive margins were more likely to die from disease than those with negative margins (HR, 6.26; 95% CI, 1.50-26.14; p = 0.0119); no other independent predictors of survival were identified. CONCLUSIONS: With the numbers of patients we had, we observed that patients with extremity, nonmetastatic, high-grade osteosarcoma who had positive margins showed a higher probability of local recurrence in comparison to those with negative surgical margins. Given that positive margins appear to be associated with poorer survival in patients with high-grade osteosarcoma of the extremities, surgeons should strive to achieve negative margins, but larger studies are needed to confirm these findings. LEVEL OF EVIDENCE: Level III, therapeutic study.


Assuntos
Neoplasias Ósseas/cirurgia , Ossos da Perna/cirurgia , Recidiva Local de Neoplasia/cirurgia , Osteossarcoma/cirurgia , Amputação Cirúrgica , Neoplasias Ósseas/patologia , Feminino , Humanos , Ossos da Perna/patologia , Salvamento de Membro/métodos , Masculino , Recidiva Local de Neoplasia/patologia , Osteossarcoma/patologia , Fatores de Risco , Análise de Sobrevida
14.
Clin Orthop Relat Res ; 472(11): 3462-7, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25115583

RESUMO

BACKGROUND: Treatment of chondroblastoma in the femoral head is challenging owing to the particular location and its aggressive nature. There is little published information to guide the surgeon regarding the appropriate approach to treating a chondroblastoma in this location. We developed a modified trapdoor procedure to address this issue. The primary modification is that the window surface of the femoral head is covered by the ligamentum teres rather than cartilage as in the traditional procedure. QUESTIONS/PURPOSES: We assessed (1) the clinical presentation of chondroblastoma of the femoral head and treatment results with the modified trapdoor procedure in terms of (2) the frequency of local recurrence, (3) complications, and (4) functional outcomes using the Musculoskeletal Tumor Society (MSTS) score. METHODS: Between 1999 and 2010, we treated 14 patients for chondroblastoma of the femoral head. All patients received the modified trapdoor procedure. Of those, 13 were available for followup at a minimum of 36 months (mean, 66 months; range, 36-117 months) and one patient was lost to followup. There were nine males and four females, with a mean age of 18 years (range, 9-29 years). Clinical features were ascertained by chart and radiographic review, and recurrence, complications, and functional outcomes (MSTS score) were recorded from chart review. Patterns of bone destruction were evaluated using the Lodwick classification, which ranges from IA (geographic appearance with sclerotic rim) to III (permeative appearance). RESULTS: The symptoms at diagnosis were pain in nine patients and discomfort in four. The mean duration of symptom was 11 months (range, 1-36 months). The physis was open in two patients, closing in one, and closed in 10. The patterns of bone destruction were evaluated as Lodwick Class IA in six patients, Lodwick Class IB in five, and Lodwick Class IC in two. At latest followup, no local recurrence was observed. Two patients had postoperative complications. One had avascular necrosis of the femoral head and was treated with prosthesis replacement. The other had asymptomatic heterotopic ossification in the surgical field. The mean MSTS score was 29.6 (range, 28-30). CONCLUSIONS: Based on this small series, we believe our modified trapdoor procedure is a safe, effective means of treating a chondroblastoma in the femoral head, but additional clinical evaluation with more patients is necessary to confirm our findings. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Instructions for Authors for a complete description of levels of evidence.


Assuntos
Condroblastoma/diagnóstico , Condroblastoma/cirurgia , Neoplasias Femorais/diagnóstico , Neoplasias Femorais/cirurgia , Cabeça do Fêmur/cirurgia , Procedimentos Ortopédicos/métodos , Adolescente , Adulto , Artralgia/etiologia , Fenômenos Biomecânicos , Criança , Condroblastoma/complicações , Condroblastoma/reabilitação , Deambulação Precoce , Articulação do Cotovelo/fisiopatologia , Medicina Baseada em Evidências , Feminino , Neoplasias Femorais/complicações , Neoplasias Femorais/reabilitação , Necrose da Cabeça do Fêmur/etiologia , Necrose da Cabeça do Fêmur/cirurgia , Seguimentos , Humanos , Instabilidade Articular/etiologia , Masculino , Recidiva Local de Neoplasia/patologia , Ossificação Heterotópica , Amplitude de Movimento Articular , Reoperação , Resultado do Tratamento , Adulto Jovem
15.
Int J Surg ; 110(2): 645-653, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38000051

RESUMO

OBJECTIVE: Breast cancer treatment has evolved to the modern skin-sparing mastectomy and nipple-sparing mastectomy. To better perform these surgeries, minimally invasive techniques using the endoscope, or Da Vinci Robotic Surgery platform have been developed. The deep inferior epigastric perforator (DIEP) flap is the gold standard in breast reconstruction, but it is still not commonly performed after minimally invasive mastectomy due technical difficulty. Here the authors introduced six key steps to a successful aesthetic autologous free flap reconstruction in in minimally invasive mastectomies. METHODS: There are six main steps to our technique: placement of mastectomy incision, precise flap design after angiography studies, trial of shaping, transcutaneous medial suture, footprint recreation and postoperative shaping with bra. Between November 2018 and July 2022, a total of 67 immediate breast reconstructions using free perforator flaps were performed in 63 patients after minimally invasive nipple-sparing mastectomy. RESULTS: The results from the minimally invasive mastectomy group were compared with a group of conventional mastectomy patients ( n= 41) performed during the same period. There were no significant differences in flap exploration rates. One hundred percent of the flaps survived. In the minimally invasive group, the final scar was placed in the lateral region, where it would be hidden from the anterior view. Only 70.7% of the conventional mastectomy group could achieve a hidden lateral scar ( P <0.001). The aesthetic revision rates were similar between two groups. CONCLUSION: With attention to the six steps above, autologous free flap reconstruction can be offered reliably in the setting of minimally invasive mastectomy.


Assuntos
Neoplasias da Mama , Mamoplastia , Retalho Perfurante , Humanos , Feminino , Mastectomia/métodos , Neoplasias da Mama/cirurgia , Estudos Retrospectivos , Estudos de Casos e Controles , Cicatriz , Retalho Perfurante/cirurgia , Estética
16.
Ann Surg Oncol ; 20(11): 3391-7, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23835652

RESUMO

BACKGROUND: Cutaneous angiosarcoma (CAS) is a rare, aggressive vascular sarcoma with a poor prognosis, historically associated with 5-year overall survival (OS) rates between 10 and 30 %. METHODS: This is a single-institution retrospective review of patients treated for CAS from 1999-2011. Demographics, primary tumor characteristics, treatment, and outcomes were analyzed. RESULTS: A total of 88 patients were identified (median age 70 years and 57 % female). Median tumor size was 3 cm. Median follow-up was 22 months. The 5-year OS and recurrence-free survival (RFS) were 35.2 and 32.3 %, respectively; median was 22.1 months. Also, 36 patients (41 %) received surgery alone, 7 (8 %) received XRT alone, and 41 (47 %) received surgery and XRT. Of the 67 of 88 patients who were disease-free after treatment, 33 (50 %) recurred (median of 12.3 months). Surgery alone had the highest 5-year OS (46.9 %) and RFS (39.9 %) (p = ns). Four presentation groups were identified: (1) XRT-induced, n = 30 (34 %), 26 of 30 occurred in females with a prior breast cancer, (2) sporadic CAS on head and neck (H/N), n = 38, (3) sporadic CAS on trunk/extremities, n = 13, and (4) Stewart-Treves n = 7. Those with trunk/extremity CAS had the highest 5-year OS (64.8 %), with H/N CAS having the worst 5-year OS (21.5 %). On MV analysis, only tumor size <5 cm correlated with improved OS (p = 0.014). DISCUSSION: In this large series, there appears to be a better overall prognosis than historically reported, especially in Stewart-Treves and CAS on trunk or extremities. While surgery alone was associated with better OS and RFS compared with other treatment modalities, this was not statistically significant. Tumor size was a significant prognostic factor for OS.


Assuntos
Hemangiossarcoma/mortalidade , Recidiva Local de Neoplasia/mortalidade , Neoplasias Cutâneas/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Terapia Combinada , Feminino , Seguimentos , Hemangiossarcoma/patologia , Hemangiossarcoma/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/terapia , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/terapia , Taxa de Sobrevida , Adulto Jovem
17.
J Natl Compr Canc Netw ; 11(6): 688-723, 2013 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-23744868

RESUMO

Primary bone cancers are extremely rare neoplasms, accounting for fewer than 0.2% of all cancers. The evaluation and treatment of patients with bone cancers requires a multidisciplinary team of physicians, including musculoskeletal, medical, and radiation oncologists, and surgeons and radiologists with demonstrated expertise in the management of these tumors. Long-term surveillance and follow-up are necessary for the management of treatment late effects related to surgery, radiation therapy, and chemotherapy. These guidelines discuss the management of chordoma, giant cell tumor of the bone, and osteosarcoma.


Assuntos
Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/terapia , Humanos , Estadiamento de Neoplasias
18.
Cancer Control ; 20(4): 307-12, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24077407

RESUMO

BACKGROUND: Cutaneous leiomyosarcoma is primarily a low-grade malignancy that affects elderly male Caucasians. It is a rare dermal-based tumor for which treatment algorithms have been poorly defined. METHODS: We retrospectively reviewed the use of a median 1-cm margin for resection to treat patients with cutaneous leiomyosarcoma referred for treatment between 2005 and 2010. RESULTS: Thirty-three patients with cutaneous leiomyosarcoma were treated. Of these, 76% were male, 97% were Caucasian (median age: 63.5 years), and 67% of tumors were located on the extremities. Preoperative staging was negative for distant metastasis in all patients. A majority of the tumors (88%) were low grade (median size: 1.3 cm). All of the tumors were positive for smooth-muscle actin. A total of 94% of patients underwent primary surgical resection with a median margin of 1 cm. Final resection margin was negative in 97% of patients. Adjuvant radiotherapy was used in 15%. No metastatic spread or recurrences were present, and 100% of patients were alive at last follow-up (median: 15.5 months). CONCLUSIONS: Good oncological control and excellent outcomes are possible with a 1-cm resection margin in most cases of cutaneous leiomyosarcoma.


Assuntos
Leiomiossarcoma/cirurgia , Neoplasias Cutâneas/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Leiomiossarcoma/patologia , Leiomiossarcoma/radioterapia , Masculino , Pessoa de Meia-Idade , Radioterapia Adjuvante , Estudos Retrospectivos , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/radioterapia , Resultado do Tratamento , Adulto Jovem
19.
Int J Hyperthermia ; 29(1): 1-7, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23205633

RESUMO

UNLABELLED: This paper reports a single-institution experience with the use of isolated limb infusion for limb salvage in locally advanced, unresectable, recurrent limb threatening soft tissue sarcomas. BACKGROUND: Locally advanced, limb threatening soft tissue sarcomas (STS) pose a significant treatment challenge. We report our experience using isolated limb infusion (ILI) in patients with unresectable extremity STS. METHODS: A total of 22 patients with extremity STS underwent 26 ILIs with melphalan and dactinomycin. Patient characteristics, intra-operative parameters and toxicity were recorded. Outcome measures included limb-salvage and in-field response rates. RESULTS: Of the 19 lower and 7 upper extremity ILIs, Wieberdink grade III toxicity or less was observed in all. Median followup was 11 months. A total of 17 patients were evaluable at 3 months post-ILI with an overall response rate of 42%. Four (24%) had complete response (CR), three (18%) partial response (PR), three (18%) stable disease (SD) and seven (41%) progressive disease (PD). Twelve of 17 (71%) underwent successful limb preservation at a median of 9 months post-ILI. Two (12%) were downstaged to resectable disease and remain showing no evidence of disease (NED) after surgery at 30 and 22 months post-ILI. CONCLUSIONS: ILI is an attractive modality that provides regional disease control and limb preservation in patients with limb threatening sarcoma. Although short-term results appear encouraging, long-term follow-up is needed to fully assess the role of ILI in unresectable extremity STS.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Quimioterapia do Câncer por Perfusão Regional , Sarcoma/tratamento farmacológico , Neoplasias de Tecidos Moles/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antibióticos Antineoplásicos/administração & dosagem , Antineoplásicos Alquilantes/administração & dosagem , Dactinomicina/administração & dosagem , Extremidades , Feminino , Humanos , Masculino , Melfalan/administração & dosagem , Pessoa de Meia-Idade , Adulto Jovem
20.
Clin Orthop Relat Res ; 471(3): 891-8, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22968531

RESUMO

BACKGROUND: Core needle biopsies of sarcomas allow a diagnosis in a high percentage of patients with few complications. However, it is unclear whether the tract needs to be excised to prevent recurrences. QUESTIONS/PURPOSES: We therefore determined the rates of recurrence and metastases in patients with Stage III extremity sarcomas, who underwent wide local resection without excision of the needle tract and also received adjuvant treatment. METHODS: We retrospectively reviewed 59 adult patients with deep, larger than 5 cm, high-grade soft tissue sarcomas of the upper or lower extremity treated between January 1999 and April 2009. All the patients underwent a core needle biopsy. Resection was performed with wide margins. The biopsy tract was not resected during the definitive surgery. Fifty-seven patients (97%) received preoperative and/or postoperative radiation, whereas 49 patients (83%) received chemotherapy. Local recurrence and distant recurrence rates were determined. The minimum followup was 24 months (median, 56 months; range, 24-122 months). RESULTS: The local recurrence rate was 9%. Fifteen patients (25%) developed metastasis after diagnosis. Seven of the 59 patients (12%) had microscopic positive margins at resection. CONCLUSIONS: Our data demonstrate no increase in local recurrence rates or rates of metastatic disease compared with previously published studies when resection of the core biopsy tract was not performed. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.


Assuntos
Biópsia com Agulha de Grande Calibre/efeitos adversos , Recidiva Local de Neoplasia/patologia , Sarcoma/cirurgia , Neoplasias de Tecidos Moles/cirurgia , Adulto , Idoso , Quimioterapia Adjuvante , Extremidades , Feminino , Humanos , Neoplasias Pulmonares/secundário , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/cirurgia , Estadiamento de Neoplasias , Neoplasia Residual , Radioterapia Adjuvante , Reoperação , Estudos Retrospectivos , Sarcoma/secundário , Neoplasias de Tecidos Moles/patologia , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral
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