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1.
Microsurgery ; 43(5): 470-475, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36762616

RESUMO

BACKGROUND: Reconstruction of total or near-total nasal defects is challenging and requires the re-creation of three nasal layers. Fasciocutaneous free flaps have been used effectively for restoring the vascularized nasal lining and staged forehead flap for nasal skin replacement, which is a long process. The aim of this study is to share our experience of combination of preliminary free tissue transfer with paramedian forehead flap reconstruction in the same stage of complex nasal reconstruction. METHODS: From December 2015 to July 2021, 10 patients underwent nasal reconstruction with free flaps including 4 medial sural artery perforator (MSAP) flaps, 5 anterolateral thigh (ALT) flaps and 1 radial forearm flap for lining and forehead flaps for skin coverage simultaneously for total or subtotal nasal defects. Nasal obstruction symptoms evaluation (NOSE) score was utilized to evaluate the functional outcome and the aesthetic results were evaluated with the last follow-up photos with score 1-5 by 5 plastic surgeon and 5 laypersons. RESULTS: The size of the free flaps ranged from 3 cm x 6 cm to 6 cm x 13 cm. After excluding one patient who expired before forehead flap division due to comorbidities, the average duration between combination surgery and the division of the forehead flap pedicle of the remaining patients was 5.7 months (range, 2-12). For patients without any postoperative events, the duration was 2.2 months (range, 2-3). One free flap had partial necrosis due to infection. The average follow-up duration was 29.6 months (range, 12-64). The NOSE score was 5.9 (range, 0-10) and the aesthetic score is 4.1 (range, 3-5) in average. CONCLUSIONS: The combination of preliminary free tissue transfer for nasal lining restoration with a paramedian forehead flap for nasal skin replacement in the same stage may shorten the long process and achieve satisfactory reconstruction in complex nasal reconstruction.


Assuntos
Retalhos de Tecido Biológico , Neoplasias Nasais , Procedimentos de Cirurgia Plástica , Rinoplastia , Humanos , Retalhos de Tecido Biológico/cirurgia , Testa/cirurgia , Neoplasias Nasais/cirurgia , Nariz/cirurgia , Rinoplastia/métodos
2.
J Craniofac Surg ; 34(5): 1387-1392, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37410571

RESUMO

Forehead flap nasal reconstruction is a lengthy process; the final outcome requires multiple stages and several months to achieve. After flap transfer, the pedicle flap has to be kept attached to the face for weeks, which may lead to a variety of psychosocial distress and challenges for patients. From April 2011 to December 2016, 58 patients who underwent forehead flap reconstruction for nasal reconstruction were included. The general satisfaction questionnaire, Derriford Appearance Scale 19, and Brief Fear of Negative Evaluation Scale, were utilized to assess the change in psychosocial functioning over 4 time points: preoperative (time 1), 1 week after forehead flap transfer (time 2), 1 week after forehead flap division (time 3), and final outcome after refinement procedures (time 4). The patients were also divided into 3 groups based on the severity of nasal defects: defects involving only a single subunit (n=19), subtotal nasal defects (n=25), and total nasal defects (n=13). Between- and within-group comparisons were conducted. The vast majority of patients had the highest levels of postoperative distress and social avoidance immediately after flap transfer; these levels decreased after flap division and refinement procedures. The psychosocial functioning was more strongly affected by the stage time point than by the severity of the original nasal defects. The forehead flap nasal reconstruction can not only help patients gain a relatively normal nose but also restore their self-esteem and social confidence. The lengthy process is beneficial and worthwhile, even though it involves short-term psychosocial distress.


Assuntos
Neoplasias Nasais , Rinoplastia , Humanos , Rinoplastia/métodos , Testa/cirurgia , Nariz/cirurgia , Retalhos Cirúrgicos/cirurgia , Estudos Retrospectivos , Neoplasias Nasais/cirurgia
3.
Aesthetic Plast Surg ; 46(3): 1261-1269, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34782914

RESUMO

BACKGROUND: Several materials can serve as spacer grafts in the repair of retracted lower eyelids. However, previous studies did not reveal any of these to be superior to the others. From our perspective, autologous dermal grafts are ideal because they are biologically compatible and abundantly available. However, the absorption of these grafts is an issue, and the thickness of the dermal grafts is crucial. We evaluated the dermal thickness at five potential donor sites using ultrasonography and the efficacy and safety of the posterior neck dermis as a spacer graft in the correction of retracted lower eyelids. METHODS: In 20 healthy volunteers, the dermal thickness was assessed using ultrasonography and compared between the posterior neck, upper arm, inguinal area, intergluteal cleft, and gluteal sulcus. Between January 2018 and June 2021, eight retracted lower eyelids in eight patients were repaired using a posterior neck dermal graft. The surgical results of these grafts were also evaluated. RESULTS: The mean age of the volunteers was 37.8 years, and the mean body mass index was 24.45 kg/m2. The intergluteal cleft provided the thickest dermis followed by the posterior neck and gluteal sulcus, which were not significantly different. The upper arm and inguinal area had the thinnest dermis without significant differences between them. The mean marginal reflex distance 2/iris ratio decreased by 0.15 (p=0.008). The mean cosmetic score (0-10) for evaluation of lower eyelid reconstruction increased by 3.38 (p=0.011). The mean Vancouver Scar Scale score for evaluation of donor site scarring was 3.21. CONCLUSIONS: Although the posterior neck dermis is the second thickest, it is an ideal spacer graft in the reconstruction of retracted lower eyelids. Adequate thickness, uncomplicated methods, and a closer surgical field are its advantages. Additionally, donor site morbidity is minimal, with acceptable scarring. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Blefaroplastia , Doenças Palpebrais , Adulto , Blefaroplastia/métodos , Cicatriz/cirurgia , Doenças Palpebrais/cirurgia , Pálpebras/cirurgia , Humanos , Estudos Retrospectivos , Pele , Transplante de Pele/métodos , Resultado do Tratamento
4.
Aesthetic Plast Surg ; 46(3): 1224-1236, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34799763

RESUMO

BACKGROUND: This study aimed to propose a novel four-type deformity and treatment-oriented classification of the lower eyelids that directs the therapeutic combination of three-step lower blepharoplasty for Asian populations. METHODS: We reviewed 183 patients who underwent a therapeutic combination of three steps of lower blepharoplasty after being diagnosed with four types of lower eyelid deformities between July 2018 and April 2021. The three-step lower blepharoplasty includes: (1) mid-face and lower eyelid augmentation, (2) transconjunctival eye bag removal, and (3) skin pinch removal. Consecutive digital images, detailed fat graft volume, fat removal amount, skin pinch removal amount, complications, and patient's satisfaction and aesthetic improvement score were recorded. RESULTS: The overall patient's satisfy score is 91. Aesthetic improvement score is 80.2 and 83.3 among lay persons and experts, respectively. The volume of the fat graft ranges from 2 to 3 mL per orbit according to the severity of the deformity. The amount of fat removed was 0.53 ± 0.36 and 0.61 ± 0.40 mL per orbit in types II and III patients, respectively. There is no lower lid malposition. Eleven patients had over-correction of fat grafting, and they need steroid injection; 20 patients had under-correction of fat grafting, and they need secondary fat grafting. Ten patients need secondary skin pinch excision due to post-op skin redundancy. Two patients had conjunctiva wound granuloma. CONCLUSIONS: The combination of three-step lower blepharoplasty according to the novel classification is a straightforward and effective method to correct lower eyelid deformities. The complication rate was low with high patient satisfaction. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Blefaroplastia , Povo Asiático , Blefaroplastia/métodos , Cicatriz/cirurgia , Túnica Conjuntiva/cirurgia , Pálpebras/anormalidades , Pálpebras/cirurgia , Humanos , Estudos Retrospectivos
5.
J Am Acad Dermatol ; 84(6): 1782-1791, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32828861

RESUMO

BACKGROUND: Patients with Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) have high mortality rates. Disseminated intravascular coagulation has been reported in SJS/TEN patients. The influence of this lethal complication in patients with SJS/TEN is not well known. OBJECTIVE: This study aimed to investigate the risk and outcomes of disseminated intravascular coagulation in patients with SJS/TEN. METHODS: We analyzed the disseminated intravascular coagulation profiles of patients receiving a diagnosis of SJS/TEN between 2010 and 2019. RESULTS: We analyzed 150 patients with SJS/TEN (75 with SJS, 22 with overlapping SJS/TEN, and 53 with TEN) and their complete disseminated intravascular coagulation profiles. Disseminated intravascular coagulation was diagnosed in 32 patients (21.3%), primarily those with TEN. It was significantly associated with systemic complications, including gastrointestinal bleeding, respiratory failure, renal failure, liver failure, infection, and bacteremia. Additionally, SJS/TEN patients with disseminated intravascular coagulation had elevated procalcitonin levels. Among patients with SJS/TEN, disseminated intravascular coagulation was associated with a greater than 10-fold increase in mortality (78.1% vs 7%). LIMITATIONS: The study limitations include small sample size and a single hospital system. CONCLUSION: Disseminated intravascular coagulation is a potential complication of SJS/TEN and associated with higher mortality. Early recognition and appropriate management of this critical complication are important for patients with SJS/TEN.


Assuntos
Coagulação Intravascular Disseminada/etiologia , Coagulação Intravascular Disseminada/mortalidade , Hemorragia Gastrointestinal/complicações , Síndrome de Stevens-Johnson/complicações , Síndrome de Stevens-Johnson/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Bacteriemia/complicações , Bacteriemia/microbiologia , Feminino , Humanos , Estimativa de Kaplan-Meier , Falência Hepática/complicações , Masculino , Pessoa de Meia-Idade , Insuficiência Renal/complicações , Insuficiência Respiratória/complicações , Taxa de Sobrevida
6.
Ann Plast Surg ; 86(2): 133-136, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-32732489

RESUMO

BACKGROUND: Many Asian patients desire a narrower nasal base with less flaring of the alar lobules. However, patients who underwent multiple rhinoplasty surgeries with nostril contracture or an overreduction of the alar base may experience nostril contracture and deformity, which may lead to further airway obstruction. We present a technique that combines paranasal augmentation with composite chondrocutaneous graft transfer to overcome this problem. METHODS: Nine patients underwent composite chondrocutaneous graft transfer to the soft triangle or alar base combined with paranasal augmentation using preshaped porous polyethylene implants to correct nostril contracture and airway obstruction between September of 2014 and May of 2018. Preoperative and postoperative alar base distances and cross-sectional areas of the nostrils were measured and compared. RESULTS: The average thickness of paranasal augmentation was 5.5 mm (range, 4.0-7.0 mm). Eighteen composite grafts were located over the soft triangle (n = 3) and the alar base (n = 15). The average number of composite grafts for each person was 2 (range, 1-4). All composite grafts survived totally or partially, and no graft failed. The average follow-up was 10.9 months (range, 3-28 months). The alar base increased 13.9% (range, 2.2%-23.9%), and the nostril area increased an average of 78.1% (range, 4.5%-316.8%) postoperatively. Patients had satisfactory aesthetic and functional outcomes. CONCLUSIONS: Combining paranasal augmentation and composite graft transfer increased the cross-sectional area of the external valve and improved nostril contracture and airway obstruction after the overresection of the alar base or nose contracture after multiple rhinoplasty surgeries.


Assuntos
Contratura , Rinoplastia , Contratura/etiologia , Contratura/cirurgia , Estética , Humanos , Cavidade Nasal , Nariz/cirurgia
7.
J Craniofac Surg ; 32(5): 1850-1852, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33235166

RESUMO

ABSTRACT: Restoring the nasal lining is a great challenge in the reconstruction of nasal defects. In this series, the authors present our experience in using the upper buccal musculomucosal (UBMM) flap for the reconstruction of full thickness columellar or nasal lining defects. Ten patients who underwent UBMM flap reconstruction of columellar or nasal lining defects, with or without composite grafting, were identified between December of 2014 and February of 2017. The records were retrospectively reviewed to determine the demographics, nasal deformity etiology, surgical technique, complications, flap survival rate and duration of follow-up. Of these ten patients, three were men, and seven were women; the average age was 48.1 years (range, 34-66 years). Four patients underwent bilateral UBMM flaps, and 6 patients underwent unilateral UBMM flap reconstruction. All of the donor sites were closed without complications, except for one small granuloma that occurred 8 months later. Of the total 14 flaps, 7 healed well, 6 healed well after minimal debridement in the clinic, and one failed and was replaced with a contralateral UBMM flap. The average follow-up time was 20.1 months (range, 8-38 months). All patients had satisfactory aesthetic and functional outcomes. Due to the limited availability of healthy local tissue for nasal lining reconstruction after multiple surgeries, the UBMM flap serves as an applicable choice to restore columellar or nasal lining defects, with minimal donor site morbidity and no visible external scarring.


Assuntos
Neoplasias Nasais , Rinoplastia , Estética Dentária , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Septo Nasal/cirurgia , Neoplasias Nasais/cirurgia , Estudos Retrospectivos , Retalhos Cirúrgicos
8.
Aesthetic Plast Surg ; 45(4): 1721-1729, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33506322

RESUMO

BACKGROUND: To introduce an innovative refinement, the "double V cutting folded derotation graft" (DVCFD graft), which is a method for nasal tip lengthening in aesthetic rhinoplasty with strong holding force and efficient cartilage use. METHODS: A retrospective study was conducted from January 2018 to July 2019 with 101 patients, including 11 males and 90 females with an average age of 36.87 ± 10.12 years, at Chang Gung Memorial Hospital; the patients received classic derotation grafts (n = 49, 17 of them were one layer and 32 of them were two layers) and DVCFD grafts (n = 52) for cosmetic tip plasty. The tip projection, columella labial angle and nasolabial angle were measured through clinical photography at three different times (T0: pre-operation, T1: two weeks post-operation and T2: five months post-operation). The differences between the original derotation graft and the DVCFD graft were identified using paired-t and independent-t tests. RESULTS: The final relapse ratios of the classic derotation graft and DVCFD graft were 36.78% versus 36.92% for tip projection, 40.65% versus 38.58% for columella labial angle and 45.00% versus 47.76% for nasal labial angle, respectively. The P values of the independent-t tests were 0.991, 0.564 and 0.439, respectively. CONCLUSIONS: Both the classic derotation graft and DVCFD graft possess similar stability in tip plasty. The novel modification of the DVCFD graft has more efficient cartilage usage and is a feasible and safe surgical option for patients with limited harvestable cartilage for tip lengthening. LEVEL OF EVIDENCE III: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Septo Nasal , Rinoplastia , Adulto , Estética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Septo Nasal/cirurgia , Nariz/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
9.
Ann Plast Surg ; 83(5): 513-517, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31567415

RESUMO

BACKGROUND: The philtrum plays an important role in determining the shape and form of the upper lip and creates individual identity. Postburn scar contracture in this area often leads to severe functional and aesthetic disfigurement. In this report, we present a novel method of philtrum reconstruction using full-thickness skin grafts (FTSGs) after burn injury. METHODS: Between August 2011 and October 2017, 8 patients with postburn philtrum deformity who underwent FTSG for replacement of the whole upper lip unit with a silastic tube for creation of the philtral dimple were included. A review of photographic documentation was used to evaluate the aesthetic results. RESULTS: The size of FTSG ranged from 4 × 9 to 6 × 17 cm. No patient had immediate postoperative complications, such as hematoma, infection, or necrosis. The crests of the ridges preserved their height and length, and the dimple remained visible after an average follow-up of 30.4 months (range, 3-69 months). All patients were satisfied with both functional and aesthetic results. CONCLUSIONS: This technique of single-stage reconstruction of the upper lip and philtrum with FTSG and silastic tube produced favorable results in the formation of the philtral ridges and the dimple. Through thoughtful preoperative design, meticulous scar release, and skin grafting, satisfactory functional and aesthetic results are achievable.


Assuntos
Queimaduras/cirurgia , Cicatriz/cirurgia , Traumatismos Faciais/cirurgia , Lábio/lesões , Lábio/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Transplante de Pele , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Transplante de Pele/métodos
10.
Ann Plast Surg ; 82(5): 512-519, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30985342

RESUMO

BACKGROUND: On June 27, 2015, a colored powder explosion occurred in Taiwan. As a result, 499 people were injured, and over 200 people were in critical condition because of severe burns. Forty-nine casualties were transported to the Chang Gung Memorial Hospital. METHODS: We undertook a single-center retrospective observational study using clinical data for 37 patients with major burns with more than 20% total burn surface area (TBSA). We describe the experience of managing patients with acute burn injuries in these patients. Patient-specific data were analyzed and expressed as mean ± standard deviation. RESULTS: Thirty-seven major burn patients were admitted to our hospital. The mean ± SD age was 22.5 ± 5 years. The mean ± SD TBSA was 48.9% ± 20%. All patients were stabilized within 6 hours after admission, and no patient experienced hypothermia or hypovolemia. We performed 95 debridement procedures and 88 skin grafts. A mean of 5.6 surgeries were performed for each patient. The mean ± SD hospital stay was 62 ± 32 days. The ratio for hospital days/%TBSA was 1.36, and hospital charges/hospital days ratio was US $973 a day for surviving patients. Two mortalities (2/37, 5.4%) were reported: one was related to cardiac insult, and another was caused by sepsis. CONCLUSIONS: We share our experience in managing 37 major burn patients in a colored powder explosion to improve the holistic care in modern mass burn casualties. Aggressive early debridement and skin grafting reduced hospital stay and costs.


Assuntos
Traumatismos por Explosões/cirurgia , Queimaduras Químicas/cirurgia , Explosões , Pós/efeitos adversos , Adolescente , Adulto , Traumatismos por Explosões/classificação , Traumatismos por Explosões/mortalidade , Unidades de Queimados , Queimaduras Químicas/classificação , Queimaduras Químicas/mortalidade , Estudos Transversais , Feminino , Humanos , Escala de Gravidade do Ferimento , Masculino , Incidentes com Feridos em Massa , Manejo da Dor , Estudos Retrospectivos , Taxa de Sobrevida , Taiwan
11.
Wound Repair Regen ; 26(2): 182-191, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29663582

RESUMO

Although studies on skin microbiome of acute and chronic wounds abound, evidence on newly built microbial communities of subacute wounds remains scant. To characterize the skin microbiome of recently healed (scarred) burn wounds in relation to unaffected skin surfaces, we collected weekly swabs from patients with moderate to severe burns in the 3rd postburn month for 4 weeks in 2015. We performed skin type (moist, dry, and oily)-matched comparisons within six burn patients (43 pairs of swabs) and with 13 skin-healthy, control patients (22 pairs of samples) using 16S ribosomal RNA gene sequencing results. Results of comparative microbiome analysis showed that, there were no substantial variations in the microbial abundance (all p > 0.05) or composition (all p > 0.01, adjusted for multiple comparisons) between samples obtained from wound scars and those from unaffected surfaces of burn patients. Nor did we find significant temporal dynamics in microbial richness or diversity in burn samples (all p ≥ 0.05). However, samples from burn patients harbored more Firmicutes (median: 25.6%, interquartile range [IQR]: 14.3%-52.8%) than those of control patients (14.9%, IQR: 6.7%-27.0%; p: 0.016), even after adjusting for host age, sex, and skin type-matching (p: 0.026). The number of observed bacterial operational taxonomic units at the genus level was reduced in burn patients (median: 62, IRQ: 32-85) as compared to control patients (median: 128, IQR: 112-136; age-, skin type-adjusted p < 0.01). Meanwhile, estimates of community diversity and evenness for surveyed body sites of burn patients were higher than those of control patients (all adjusted p ≤ 0.05). With a much-reduced bacterial burden and a relative overgrowth of Staphylococcus spp., the skin microbiota of burn patients remained dysbiotic in the subacute phase as compared to that of skin-normal patients.


Assuntos
Queimaduras/patologia , Cicatriz/patologia , Microbiota/fisiologia , Pele/microbiologia , Cicatrização/fisiologia , Infecção dos Ferimentos/patologia , Adulto , Cicatriz/microbiologia , Feminino , Humanos , Masculino , Microbiota/genética , Pessoa de Meia-Idade , RNA Ribossômico 16S/genética , Pele/patologia , Fatores de Tempo , Índices de Gravidade do Trauma , Infecção dos Ferimentos/microbiologia , Adulto Jovem
12.
Microsurgery ; 38(6): 659-666, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29427442

RESUMO

BACKGROUND: Nasal reconstruction after burn injury can be challenging due to limited availability of local flaps. We present our experience of free flap reconstruction for full-thickness nasal defect after severe facial burn injury. METHODS: Between August 1998 and September 2015, six patients underwent nasal reconstruction with seven free flaps after burn injury. Among them, flame burn occurred in two patients, chemical burn in two, explosive burn in one, and contact thermal burn in one patient. The percentage of total body surface area ranged from 4% to 48%, and the face and forehead were involved in all patients. Their clinical and photographic records were retrospectively reviewed to evaluate the aesthetic results. RESULTS: Four ulnar forearm flaps, one radial forearm flap, one anterolateral thigh flap, and one medial sural artery perforator flap were used for nasal reconstruction. The nasal framework was constructed simultaneously using costal cartilage or conchal cartilage. The facial artery and vein were typically used as recipient vessels. One case each of partial necrosis and infection were noted during the average follow-up of 59 months (range, 16-126 months). Patients had satisfactory aesthetic and functional outcomes after 4.5 times (range, 2-7 times) refinement operation. CONCLUSIONS: Free flap is an applicable alternative to restore nasal skin envelope, with rebuilding the nasal framework performed in the same stage after severe facial burn injury. Through thoughtful planning and sufficient refinement, satisfactory aesthetic, and functional results are achievable.


Assuntos
Queimaduras/cirurgia , Traumatismos Faciais/cirurgia , Retalhos de Tecido Biológico , Microcirurgia/métodos , Rinoplastia/métodos , Adulto , Criança , Traumatismos Faciais/etiologia , Traumatismos Faciais/patologia , Feminino , Humanos , Masculino , Estudos Retrospectivos , Adulto Jovem
13.
Aesthet Surg J ; 38(3): 241-251, 2018 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-29401214

RESUMO

BACKGROUND: A concave midface with its associated deep nasolabial folds is more aesthetically displeasing than a convex midface. Midfacial concavity may be addressed with autologous tissue and implants. OBJECTIVES: The aim of this study was to determine the effect of paranasal augmentation on photogrammetric parameters. METHODS: Between July 2013 and August 2016, 12 patients underwent paranasal augmentation to address midface concavity. Augmentation was performed with autologous rib cartilage, autologous mandibular bone, or preshaped porous polyethylene (PPE). All operations were performed through the upper gingivobuccal approach. Twelve patients who underwent malar reduction using the same approach acted as a control group to account for the influence of the approach on soft tissue change. Preoperative and postoperative measurements were made photogrammetrically. RESULTS: The average follow-up period was 12.8 months (range, 5-30 months) for both groups. The mean thickness of augmentation grafts was 5.18 mm (range, 3-7 mm). Alar width and alar base width increased 4.84% (P = 0.01) and 7.66% (P = 0.01), respectively. The nasolabial angle increased from 97.2°to 103.6° and the columellar inclination increased from 116.0° to 119.1° but neither were statistically significant. Photogrammetric parameters did not change significantly in the control group. Partial wound dehiscence occurred in one case. There was greater postoperative increase in alar width (P = 0.020), alar base width (P = 0.024), and nasolabial angle (P = 0.033) in the experimental group compared to the control group. CONCLUSIONS: Paranasal augmentation using PPE or autologous material generates measurable soft tissue changes designed to enhance paranasal aesthetics.


Assuntos
Estética , Face/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Adulto , Face/anatomia & histologia , Face/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Fotogrametria , Resultado do Tratamento , Adulto Jovem
14.
BMC Infect Dis ; 17(1): 598, 2017 08 30.
Artigo em Inglês | MEDLINE | ID: mdl-28854887

RESUMO

BACKGROUND: Information is limited about the effect of restricted carbapenem use on clearance of multi-drug resistant Acinetobacter baumannii (MDRAB). We sought to determine the time effect of antibiotic exposure on multi-drug resistant Acinetobacter baumannii (MDRAB) acquisition and clearance. METHODS: We conducted a retrospective observational study at the intensive care units of a tertiary medical center. Forty-two of a cohort of previously healthy young adults who were concurrently burned by a dust explosion was included. Cases consisted of those from whom MDRAB was isolated during hospitalization. Controls consisted of patients from whom MDRAB was not isolated in the same period. Use of antimicrobial agents was compared based on days of therapy per 1,000 patient-days (DOT/1,000PD). A 2-state Markov multi-state model was used to estimate the risk of acquisition and clearance of MDRAB. RESULTS: MDRAB was discovered in 9/42 (21.4%) individuals. The cases had significantly higher use of carbapenem (652 DOT/1,000PD vs. 385 DOT/1,000PD, P < 0.001) before MDRAB isolation. For the cases, clearance of MDRAB was associated with lower use of carbapenem (469 DOT/1,000PD vs. 708 DOT/1,000PD, P = 0.003) and higher use of non-carbapenem beta-lactam (612 DOT/1,000PD vs. 246 DOT/1,000PD, P <0.001). In multi-state model, each additional DOT of carbapenem increased the hazard of acquiring MDRAB (hazard ratio (HR), 1.08; 95% confidence interval (CI) 1.01-1.16) and each additional DOT of non-carbapenem beta-lactam increased the protection of clearing MDRAB (HR, 1.25; 95% CI 1.07-1.46). CONCLUSIONS: Both acquisition and clearance of MDRAB were related to antibiotic exposure in a homogeneous population. Our findings suggest that early discontinuation of carbapenem could be an effective measure in antibiotic stewardship for the control of MDRAB spreading.


Assuntos
Infecções por Acinetobacter/microbiologia , Acinetobacter baumannii/efeitos dos fármacos , Antibacterianos/uso terapêutico , Farmacorresistência Bacteriana Múltipla/efeitos dos fármacos , Infecções por Acinetobacter/tratamento farmacológico , Acinetobacter baumannii/isolamento & purificação , Acinetobacter baumannii/patogenicidade , Adolescente , Queimaduras/microbiologia , Queimaduras/terapia , Carbapenêmicos/uso terapêutico , Estudos de Casos e Controles , Poeira , Explosões , Feminino , Humanos , Unidades de Terapia Intensiva , Masculino , Estudos Retrospectivos , Taiwan , Adulto Jovem
15.
Dermatol Surg ; 43 Suppl 1: S37-S46, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28009689

RESUMO

BACKGROUND: The formation of hypertrophic scaring (HSc) is an abnormal wound-healing response. In a previous study, an animal model with human scar tissue implanted into nude mice (BALB/c) has been successfully established. The effects of verapamil as well as combination therapy with verapamil and kenacort have been studied and compared. OBJECTIVE: To treat persistent hypertrophic scars, local injection of drugs composed of steroids, calcium channel blockers (CCBs), and interferon might be a good method. What is the best dose of the regimen and what are the mechanisms are also a worthwhile study. MATERIALS AND METHODS: Scar specimens were harvested from patients with HSc or Keloid resulting from burn injury, and then implanted to BALB/c-nu nude mice for 4 weeks. Before implantation, the specimen was either injected with or without drugs such as steroids (kenacort), CCBs (verapamil), and interferons (INFα2b), respectively. After the removal of implants, quantitative gene expressions of decorin and collagenase (MMP13) were measured using a real-time polymerase chain reaction to detect their mRNAs. Two way-ANOVA and Post Hoc were used for statistical analysis using the software SPSS 15.0. RESULTS: All drug-treated groups increased the expressions of decorin and MMP13 in comparison with those in noninjected group (p < .001) in a dose-dependent manner. Comparing equal amounts of individual drugs, gene expression of decorin was increased with increasing injection amount, and the best result in low amount of injection (0.02 mL of each) was shown in the group injected with INFα2b followed by kenacort and verapamil. However, the results were changed while injection amount was up to 0.04 mL and the strongest decorin gene expression was found in kenacort injection. Regarding MMP-13 expression, low-amount injection (0.02 mL) of INFα2b has strongest gene expression followed by kenacort and verapamil, but in the large-amount regimes (0.04 mL), verapamil had strongest gene expression followed by INFα2b and kenacort. CONCLUSION: This study showed that the kenacort, verapamil, and INFα2b all inhibited HSc in a dose-dependent manner through the evidence of gene expression of decorin and MMP13. In comparison with the injections between small amounts of drugs, INFα2b potentiated the strongest decorin and MMP13 expression. On the contrary, among the large-amount injection regimes, kenacrot was more effective on decorin expression as verapamil to MMP13 expression. To decrease side effects from the drugs and produce promising results for the clinical practice, it is suggested to maintain the dose of INFα2b along with an increased dose of verapamil for HSc improvement.


Assuntos
Bloqueadores dos Canais de Cálcio/administração & dosagem , Cicatriz/tratamento farmacológico , Decorina/genética , Fármacos Dermatológicos/administração & dosagem , Glucocorticoides/administração & dosagem , Interferon-alfa/administração & dosagem , Metaloproteinase 13 da Matriz/genética , Adolescente , Adulto , Animais , Queimaduras/complicações , Criança , Pré-Escolar , Cicatriz/genética , Cicatriz Hipertrófica/tratamento farmacológico , Cicatriz Hipertrófica/genética , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Expressão Gênica , Humanos , Injeções Intradérmicas , Injeções Intralesionais , Interferon alfa-2 , Queloide/tratamento farmacológico , Queloide/genética , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Triancinolona Acetonida/administração & dosagem , Verapamil/administração & dosagem , Adulto Jovem
16.
Ann Plast Surg ; 79(2): 139-144, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28570453

RESUMO

BACKGROUND: Reconstruction of postburn axillary contractures is difficult and particularly challenging without healthy adjacent soft tissue for axillary scar resurfacing. In this case, a free soft-tissue transfer is among the best treatment options. Here, we describe our experience with free anterolateral thigh (ALT) flap for reconstruction in postburn axillary contractures. METHODS: We enrolled 10 patients with postburn axillary contractures from August 2003 to July 2015. They all underwent wide scar contracture release through a transverse incision from the anterior axillary fold to the posterior axillary fold. The ALT flap was subfascially raised. The huge soft tissue defect after scar release was resurfaced with the ALT flap. RESULTS: Eight male patients and 2 female patients (age, 16-64 years; mean, 46 years) were included. The mean total burn surface area, follow-up time, duration between injury onset and free-flap transfer surgery, and flap size were 48%, 27 months, 7.7 months, and 12 × 23 cm, respectively. The most common recipient vessels were the thoracodorsal artery and vein (77%). The mean improvement in the range of motion of shoulder abduction was 86 degrees (range, 60-130 degrees). The mean operative time was 7 hours. All flaps survived without reexploration or failure. All but 1 donor site was managed by split-thickness skin grafting. No infection, hematoma, or deaths were noted postoperatively. Transient brachial palsy was noted in a 16-year-old male patient postoperatively, with full recovery 3 months after. CONCLUSIONS: For postburn axillary contractures without healthy adjacent soft tissue for scar resurfacing, ALT flap reconstruction represents a suitable treatment option. It allows simultaneous surgery on both the donor and recipient sites, without the need to change the patient's position. Furthermore, the ALT flap provides sufficient soft tissue and blood flow for reconstruction, leading to satisfactory functional outcomes.


Assuntos
Axila/cirurgia , Queimaduras/complicações , Contratura/cirurgia , Retalhos de Tecido Biológico/transplante , Procedimentos de Cirurgia Plástica/métodos , Adolescente , Adulto , Axila/lesões , Contratura/etiologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Coxa da Perna , Resultado do Tratamento , Adulto Jovem
17.
Ann Plast Surg ; 77(5): 535-538, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26418784

RESUMO

BACKGROUND: Donor site scarring after forehead flap nasal reconstruction is acceptable. However, as aesthetic outcomes standards for cosmetic and reconstructive surgery merge, we aim to enhance results. We recently demonstrated the cosmetic benefit of botulinum toxin type A (BTX-A) for cleft lip cheiloplasty outcomes. We hypothesize that similar mechanism(s) benefit forehead flap donor scars. METHODS: A single surgeon performed 26 forehead flap reconstructions. Indications were cancer (n = 17), trauma (n = 3), and congenital deformity (n = 6). In this split-scar study half the forehead was pretreated with BTX-A and half with normal saline after random assignment. Photographs were evaluated at most recent follow-up. Scar evaluation was based on photographs by 3 plastic surgeons using a composite subjective visual analogue score (VAS). RESULTS: Photographic follow-up was 27 months (range, 10-60 months). Botulinum toxin type A was assigned to the upper forehead in 16 cases and lower forehead in 10 cases. Intrarater reliability among 4 evaluators of 104 VAS scores was 78.1%. Upper forehead VAS (7.9 ± 1.2) was not different than lower forehead VAS (7.9 ± 1.2) regardless of treatment (P = 0.62). The VAS score of BTX-A-treated scars (8.5 ± 1.0) was significantly higher than the control (7.3 ± 1.1; P < 0.0001). Among 104 individual comparisons (26 patients × 4 observers), there were 73 instances (70.2%) where the experimental VAS score was higher than the control. CONCLUSIONS: Preoperative BTX-A injection is feasible and enhances donor site scar appearance after forehead flap nasal reconstruction in an Asian population.


Assuntos
Toxinas Botulínicas Tipo A/uso terapêutico , Cicatriz/prevenção & controle , Testa/cirurgia , Fármacos Neuromusculares/uso terapêutico , Complicações Pós-Operatórias/prevenção & controle , Cuidados Pré-Operatórios/métodos , Rinoplastia/métodos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Cicatriz/etiologia , Método Duplo-Cego , Estética , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
18.
J Formos Med Assoc ; 115(12): 1046-1052, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27923537

RESUMO

BACKGROUND/PURPOSE: Acute kidney injury (AKI) is a frequent complication of severe burn injury and is associated with mortality. The definition of AKI was modified by the Kidney Disease Improving Global Outcomes Group in 2012. So far, no study has compared the outcome accuracy of the new AKI staging guidelines with that of the complex score system. Hence, we compared the accuracy of these approaches in predicting mortality. METHODS: This was a post hoc analysis of prospectively collected data from an intensive care burn unit in a tertiary care university hospital. Patients admitted to this unit from July 2004 to December 2006 were enrolled. Demographic, clinical, and laboratory data and prognostic risk scores were used as predictors of mortality. RESULTS: A total of 145 adult patients with a mean age of 41.9 years were studied. Thirty-five patients (24.1%) died during the hospital course. Among the prognostic risk models, the Acute Physiology and Chronic Health Evaluation III system exhibited the strongest discriminative power and the AKI staging system also predicted mortality well (areas under the receiver operating characteristic curve: 0.889 vs. 0.835). Multivariate logistic regression analysis identified total burn surface area, ventilator use, AKI, and toxic epidermal necrolysis as independent risk factors for mortality. CONCLUSION: Our results revealed that AKI stage has considerable discriminative power for predicting mortality. Compared with other prognostic models, AKI stage is easier to use to assess outcome in patients with severe burn injury.


Assuntos
APACHE , Injúria Renal Aguda/mortalidade , Queimaduras/complicações , Medição de Risco/métodos , Injúria Renal Aguda/etiologia , Adulto , Queimaduras/mortalidade , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Unidades de Terapia Intensiva/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Curva ROC , Fatores de Risco
19.
Facial Plast Surg ; 32(1): 95-104, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26862970

RESUMO

Septal cartilage is deficient in Asians seeking augmentation rhinoplasty. Economized utilization of resources is necessary for durable tip enhancement that complements a dorsal implant. We introduce a modified tongue-in-groove method designed to transmit forces across the dorsum, eliminating the need for robust caudal support and prioritizing nasal lengthening and tip projection. We aim to promote the roundness index parameter and demonstrate the feasibility of a novel method in the context of Asian rhinoplasty. Between 2012 and 2014, a total of 104 Taiwanese patients underwent rhinoplasty with dorsal augmentation and lengthening with a modified tongue-in-groove technique. The concept borrows from methods established by Byrd, Guyuron, and Toriumi but distinguished by exaggerated forward positioning of a septal extension graft. Paired extended spreader grafts obviate the need for a columellar strut. Soft-tissue changes were analyzed with photogrammetry. A new parameter, the roundness index, was measured. Tip projection, dorsal length, nasal height, alar and columellar length increased significantly after 5.5 months of follow-up. Nasal tip angle, roundness, columella-labial angle, and nostril axis inclination decreased. There were no statistically significant differences in the magnitude of change in patients followed for less than and greater than 6 months. The most common complication was new or persistent tip deviation in five cases (5%). This technique was designed for a nasal anatomy typified by deficient septal cartilage. Significant photogrammetric changes were maintained after 6 months. Economized tissue allocation, dorsal septal load sharing, and relative independence from caudal support are key features of this feasible method.


Assuntos
Povo Asiático , Rinoplastia/métodos , Adulto , Cartilagem/transplante , Estética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fotogrametria , Reoperação , Taiwan , Resultado do Tratamento , Adulto Jovem
20.
J Hand Surg Am ; 39(9): 1869-76, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25154575

RESUMO

Several functionally limiting sequelae can follow deep thermal injury to the hand. Despite appropriate initial management, contractures are common. Whereas acute burn care is often managed by multidisciplinary, specialized burn units, postburn contractures may be referred to hand surgeons, who should be familiar with the patterns of burn contracture and nonsurgical and operative options to improve function and expected outcomes. The most common and functionally limiting sequelae are contractures of the webspace, hand, and digits. Webspace contractures and postburn syndactyly are managed with scar excision and local soft tissue rearrangement or skin grafting. The burn claw hand presents as extension contracture of the metacarpophalangeal joints and flexion contractures of the proximal interphalangeal joints. The mainstays of management of these contractures include complete surgical excision of scar tissue and resurfacing of the resultant soft tissue defect, most commonly with full-thickness skin grafts. If scar contracture release results in major exposure of the tendons or joints, distant tissue transfer may be required. Early motion and rehabilitative modalities are essential to prevent initial contracture formation and recontracture after surgical release.


Assuntos
Queimaduras/complicações , Contratura/etiologia , Contratura/cirurgia , Deformidades Adquiridas da Mão/etiologia , Deformidades Adquiridas da Mão/cirurgia , Cicatriz/etiologia , Cicatriz/cirurgia , Humanos , Transplante de Pele , Retalhos Cirúrgicos , Sindactilia/etiologia , Sindactilia/cirurgia
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