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1.
Ulus Travma Acil Cerrahi Derg ; 30(3): 203-209, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38506391

RESUMO

BACKGROUND: Acute compartment syndrome of the upper extremity is a surgical emergency, and timely diagnosis with immediate fasciotomies is essential for the preservation of function. This retrospective study aimed to compare the complication rates of patients who underwent fasciotomy before and after 6 hours following the initial trauma. METHODS: The medical records of the patients who underwent fasciotomy for surgical treatment of ACS of the upper extremity between 2016 and 2022 were retrospectively analyzed for age, gender, dominant hand, mechanism of injury, injury level, affected compartments, associated injuries, time elapsed till fasciotomy, and complications. The patients were divided into two groups according to the timing of fasciotomy. RESULTS: A total of 32 patients underwent fasciotomies for upper extremity ACS. The mean age of patients who underwent fasciotomy ≤ 6 hours (group 1; 10 males, 7 females) and patients who underwent fasciotomy > 6 hours (group 2; 13 males, 2 females) was 31.1 and 34.8, respectively. The most common etiology was crushing injury. There was a significant difference in complication rates between group 1 (1/17) and group 2 (10/15) (p<0.001). The length of hospitalization stay in group 2 was statistically higher than in group 1 (p=0.005). CONCLUSION: Fasciotomies for ACS of the upper extremity should be performed in less than 6 hours following the initial trauma to prevent complications.


Assuntos
Síndromes Compartimentais , Fasciotomia , Masculino , Feminino , Humanos , Fasciotomia/efeitos adversos , Estudos Retrospectivos , Síndromes Compartimentais/etiologia , Síndromes Compartimentais/cirurgia , Síndromes Compartimentais/diagnóstico , Fatores de Tempo , Extremidade Superior/cirurgia , Resultado do Tratamento
2.
J Plast Reconstr Aesthet Surg ; 91: 353-359, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38442516

RESUMO

Despite the high success rates reported in head and neck reconstruction, free flap failures continue to persist. Understanding the factors associated with flap loss and improving overall success are paramount. This study aimed to comprehensively assess the factors influencing flap revision and free tissue transfer survival in head and neck reconstruction. The study included 70 patients with defects in the lower two-thirds of the head and neck region and underwent reconstruction using free flaps. Patient age, gender, smoking status, comorbidities and data on the location and aetiology of the defect, the specific type of flap employed, the recipient artery and vein chosen, instances of revision and the overall success of the flap were collected. The investigation aimed to establish correlations between these variables as well as flap success and revision rates. No statistically significant differences were observed in arterial and venous anastomosis revision rates, or flap survival, in relation to variables such as age, gender, flap type, smoking status, comorbidities, recipient artery or vein and the number of vein anastomoses. The malignant tumour group exhibited a lower requirement for arterial revision and a higher flap survival rate compared to the benign tumour group. This study underscores the comparable safety profiles of perforator-based and conventional flaps in head and neck reconstruction. Furthermore, it reveals that patient characteristics are not contraindications for free tissue transfer. Additionally, the quantity of the veins and choice of recipient vessels are flexible and do not significantly impact flap success. The higher rates of flap success in patients with malignant aetiology requires further investigation.


Assuntos
Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço , Humanos , Neoplasias de Cabeça e Pescoço/cirurgia , Estudos Retrospectivos , Pescoço/cirurgia , Pescoço/irrigação sanguínea , Cabeça/cirurgia , Retalhos de Tecido Biológico/irrigação sanguínea , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia
4.
Plast Reconstr Surg ; 150(5): 1005e-1014e, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-35994348

RESUMO

BACKGROUND: Capsular contracture is the most common complication following breast augmentation. Recently, prophylaxis studies aiming to inhibit the release of profibrotic substances to prevent capsular contracture have gained in importance. This study investigated the effects of cromolyn sodium, montelukast, and zafirlukast on capsular contracture in a rat model. METHODS: Thirty female Wistar albino rats were randomly divided into five groups: control, sham, cromolyn sodium, montelukast, and zafirlukast. Intraperitoneal injections were administered daily to the sham (1 ml per day), cromolyn sodium (10 mg/kg per day), montelukast (10 mg/kg per day), and zafirlukast (1.25 mg/kg per day) groups 1 month before surgery. Miniature breast implants were then placed on the backs of the rats in each group. Injections were continued for the next 3 months. The rats were subsequently killed, and the capsules were harvested and assessed histopathologically. The histopathologic outcomes were acute inflammation status, inflammation severity, synovial metaplasia, foreign body reaction, mast cell count, and capsular thickness. RESULTS: The cromolyn sodium, montelukast, and zafirlukast groups had less acute inflammation and lower mean inflammation severity scores, foreign body reaction occurrence, mast cell counts, and capsular thickness than the control and sham groups ( p < 0.05). These parameters were better in the cromolyn sodium group than in the montelukast and zafirlukast groups ( p < 0.05). CONCLUSIONS: Cromolyn sodium appears to inhibit capsular contracture more efficiently than montelukast and zafirlukast. This report may be a pioneer study for the prophylactic use of cromolyn sodium in capsular contracture. CLINICAL RELEVANCE STATEMENT: The prophylactic administration of cromolyn sodium appears to reduce capsular contracture more efficiently than that of montelukast and zafirlukast. This report might constitute a pioneer study for the prophylactic use of cromolyn sodium in capsular contracture.


Assuntos
Implantes de Mama , Cromolina Sódica , Contratura Capsular em Implantes , Animais , Feminino , Ratos , Implantes de Mama/efeitos adversos , Cromolina Sódica/uso terapêutico , Reação a Corpo Estranho/etiologia , Contratura Capsular em Implantes/prevenção & controle , Antagonistas de Leucotrienos/uso terapêutico , Ratos Wistar , Compostos de Tosil/uso terapêutico
6.
Lasers Med Sci ; 37(1): 595-606, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33839962

RESUMO

Reconstruction of bone defects is still a significant challenge. The aim of this study was to evaluate the effect of application of photobiomodulation (PBM) to enhance in vivo bone regeneration and osteogenic differentiation potential of adipose-derived stem cells (ADSCs) encapsulated in methacrylated gelatin (GEL-MA) hydrogels. Thirty-six Sprague-Dawley rats were randomly separated into 3 experimental groups (n = 12 each). The groups were control/blank defect (I), GEL-MA hydrogel (II), and ADSC-loaded GEL-MA (GEL-MA+ADSC) hydrogel (III). Biparietal critical sized bone defects (6 mm in size) are created in each animal. Half of the animals from each group (n = 6 each) were randomly selected for PBM application using polychromatic light in the near infrared region, 600-1200 nm. PBM was administered from 10 cm distance cranially in 48 h interval. The calvaria were harvested at the 20th week, and macroscopic, microtomographic, and histologic evaluation were performed for further analysis. Microtomographic evaluation demonstrated the highest result for mineralized matrix formation (MMF) in group III. PBM receiving samples of group III showed mean MMF of 79.93±3.41%, whereas the non-PBM receiving samples revealed mean MMF of 60.62±6.34 % (p=0.002). In terms of histologic evaluation of bone defect repair, the higher scores were obtained in the groups II and III when compared to the control group (2.0 for both PBM receiving and non-receiving specimens; p<0.001). ADSC-loaded microwave-induced GEL-MA hydrogels and periodic application of photobiomodulation with polychromatic light appear to have beneficial effect on bone regeneration and can stimulate ADSCs for osteogenic differentiation.


Assuntos
Hidrogéis , Osteogênese , Tecido Adiposo , Animais , Regeneração Óssea , Gelatina , Ratos , Ratos Sprague-Dawley , Células-Tronco
7.
J Plast Reconstr Aesthet Surg ; 75(1): 286-295, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34275778

RESUMO

BACKGROUND: Hand fractures constitute 20% of hand injury patients who apply to emergency services. Conservative approaches are satisfactory in the majority of the cases. However, the minority group in need of surgery reaches a serious number of patients considering the frequency of these injuries. Retrospective questioning of the indications of the performed surgeries is a proper way of understanding the decisional process for surgery. PATIENTS/METHODS: Patients treated for hand fractures were retrospectively reviewed. Patient gender, age, finger/fingers involved, soft tissue involvement, treatment method (conservative/surgery) and if operated, devices used for fixation were noted. Plain radiographs of the patient were evaluated. Descriptive statistics of these variables and the effect of each variable on the decision for surgery were analyzed. RESULTS: The study involved 1430 fractures of 1303 patients (1016 male and 287 female). Fifth finger was the most commonly injured digit (31%). Comminuted fractures (29%) followed by transverse fractures (29%) and spiral/oblique fractures (22%) were commonly diagnosed fracture types. Thirteen percent (13%) of the study group needed tendon/nerve/vessel repairs. Male patients, cases with soft tissue involvement, second, third and fourth finger fractures, fractures involving multiple digits, fractures with an intra-articular component, fractures with dislocation more than 4 mm and angulation more than 15° had a significantly higher rate of surgery. CONCLUSION: Less than half of the hand fractures require surgery, and conservative treatment is usually preferred. Certain variables that indicate surgical treatment were identified with our study. These findings may help to weigh the options and choose the right path in doubtful conditions. LEVEL OF EVIDENCE: Level 4, Case-control study.


Assuntos
Falanges dos Dedos da Mão , Fraturas Ósseas , Traumatismos da Mão , Ossos Metacarpais , Feminino , Humanos , Masculino , Estudos de Casos e Controles , Falanges dos Dedos da Mão/lesões , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/diagnóstico por imagem , Fraturas Ósseas/cirurgia , Traumatismos da Mão/diagnóstico por imagem , Traumatismos da Mão/cirurgia , Ossos Metacarpais/lesões , Estudos Retrospectivos
8.
J Plast Reconstr Aesthet Surg ; 75(2): 773-781, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34776387

RESUMO

BACKGROUND: The posterior auricular nerve (PAN) is an inspiring candidate for the additional axonal source in long-term facial paralysis to improve the functional results of the cross-facial nerve (FN) graft technique. However, no studies have analyzed the PAN's axonal load and its microscopic anatomy to assess its utilization in facial reanimation. The present study aims to examine the anatomical and microscopic features of the PAN to analyze its feasibility as a donor nerve. METHODS: The bilateral facial side of 14 fresh frozen adult human cadavers was examined for the study. The PAN's anatomical course was recorded, and nerve specimens from the PAN and zygomatic nerve (ZN) were obtained to compare their microscopic anatomy and axon counts using a light microscope and transmission electron microscope. RESULTS: The PAN's average branching distance and its course length were 5.8 ± 2.69 mm and 59.2 ± 5.85, respectively. The mean number of myelinated axons was 600.28 ± 69.97 in the PAN and 728.85 ± 166.31 in the ZN. This difference between the two nerves was statistically significant (p = 0.002). However, considering the gender variable, the mean axon counts of PAN and ZN were statistically similar for face sides and their average. Furthermore, the ultrastructural anatomy of both nerves was similar in electron microscopic evaluation. CONCLUSIONS: The present study confirms that the PAN is a proper candidate to be a supportive donor nerve due to its isolated site, consistent anatomical course, convenient ultrastructural anatomy as well as axonal load.


Assuntos
Paralisia Facial , Transferência de Nervo , Adulto , Cadáver , Face , Nervo Facial/anatomia & histologia , Paralisia Facial/cirurgia , Humanos , Nervo Maxilar/anatomia & histologia , Transferência de Nervo/métodos
9.
J Hand Surg Asian Pac Vol ; 26(4): 722-727, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34789109

RESUMO

Aneurysmal bone cyst (ABC) is a benign expansile bone tumor without metastasis capability. Only 3-4% of ABCs occur in the hand and they mainly take place in metaphysis' of long bones like metacarpals or phalanges. Carpal ABCs have been reported as individual case reports in the literature due to rarity. A patient presented with pain in her right wrist. Magnetic resonance imaging revealed a well circumscribed one cm sized mass in the pisiform bone that resembled an aneurysmal bone cyst. Total pisiformectomy was performed. Treatment options are total excision or curettaging in ABCs. But rarity of these lesions may delay the diagnosis process for the inexperienced surgeon.


Assuntos
Cistos Ósseos Aneurismáticos , Neoplasias Ósseas , Falanges dos Dedos da Mão , Pisciforme , Cistos Ósseos Aneurismáticos/diagnóstico por imagem , Cistos Ósseos Aneurismáticos/cirurgia , Feminino , Humanos , Imageamento por Ressonância Magnética
10.
Ann Plast Surg ; 87(6): e145-e152, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34818287

RESUMO

INTRODUCTION: Partial flap necrosis is a common complication after surgery. McFarlane flap model has been used for assessment of various agents' effects on random flap survival. The aim of this study was to review the methodology of studies using this flap model and reveal the most successful agents. MATERIALS AND METHODS: PubMed, Scopus, and Web of Science databases were screened for words "McFarlane flap," "flap survival," and ("flap" and "rat") by using time limits between 1965 and 2019. A total of 71 original articles were reviewed. Dimensions and base (cranial/caudal) of the flap, treatment protocol, follow-up period, and survival rates were extracted. Modified survival rates were calculated. Coefficients of variation of cranial/caudally based control group flaps and most commonly used flap models were calculated to assess interstudy variability. RESULTS: A total of 165 different treatment regimens were studied. One-hundred twelve regimens (67.9%) were found to increase flap survival. Most common flap dimensions were 9 cm × 3 cm, followed by 10 cm × 3 cm, 8 cm × 2 cm and 6 cm × 2 cm. Studies using caudally based flaps showed less interstudy variability, but survival rates were similar. Pentoxifylline, sildenafil, chlorpromazine, phenoxybenzamine, and phentolamine were reported to be successful in multiple studies. CONCLUSIONS: There are numerous agents found to be effective for treatment of partial flap necrosis, but further clinical research is needed. To overcome standardization problems, use of commonly used flap dimensions with a caudal base and interpretation of results after 7 days of follow-up seems appropriate.


Assuntos
Sobrevivência de Enxerto , Retalhos Cirúrgicos , Animais , Necrose , Ratos , Padrões de Referência , Terapia de Salvação
11.
J Plast Reconstr Aesthet Surg ; 74(12): 3353-3360, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34417126

RESUMO

En coup de sabre deformity (ECDS) is a form of localized scleroderma in the frontoparietal region caused by progressive subcutaneous tissue atrophy and bony defect. Although ECDS involves two layers, skin/subcutaneous tissue and bone, the existing literature mainly focuses only on treating the skin/subcutaneous tissue layer. In this case series, we aimed to propose a novel approach that includes the combined use of fat grafting and demineralized bone matrix (DBM). Four patients with ECDS deformity, operated between February 2016 and October 2018, were retrospectively evaluated. All the patients were treated with the novel approach. Patients were evaluated with localized scleroderma scale and computed tomography (CT) scan in the preoperative period and at the annual follow-up. We observed remarkable improvement in the localized scleroderma scale including appearance, palpation, and size scores in all patients at the annual follow-up. CT scans at the annual follow-up revealed new callus formation at the bony defect area in all patients. Reinforcing fat grafting with DBM could promote healing of the bony and skin/subcutaneous tissue defects associated with ECDS.


Assuntos
Tecido Adiposo/transplante , Matriz Óssea/transplante , Testa/cirurgia , Esclerodermia Localizada/cirurgia , Adolescente , Adulto , Feminino , Testa/diagnóstico por imagem , Humanos , Pessoa de Meia-Idade , Esclerodermia Localizada/diagnóstico por imagem , Tomografia Computadorizada por Raios X
12.
Ann Plast Surg ; 85(3): 245-250, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32332389

RESUMO

PURPOSE: Although the Oberg-Manske-Tonkin (OMT) classification has been recommended by the International Federation of Societies for Surgery of the Hand owing to some insufficiencies of the Swanson classification system, it has not achieved a universal adoption by hand surgeons. In this study, we hypothesize that the OMT classification can be used easily to classify congenital upper extremity anomalies. We also aim to make epidemiological analysis of congenital upper extremity anomalies with the OMT classification and to compare the applicability of the OMT and the Swanson classifications. METHODS: We retrospectively analyzed 711 patients and 833 extremities operated on between 2012 and 2017. Photographs, plain x-rays, and brief medical histories of the patients were evaluated by 4 plastic surgeons. Two independent evaluations were made by each surgeon in 1-month interval using these classification systems. RESULTS: Total number of upper extremity anomalies recorded was 1050. Of the 711 patients operated on, 122 had bilateral anomalies. The anomalies were identified in 833 extremities because many extremities had more than a single diagnosis. We were able to classify all of the anomalies within the OMT classification. The OMT classification gives better reliability results compared with the Swanson classification according to intrarater and interrater reliabilities. CONCLUSIONS: Compared with the Swanson classification system based on phenotypic evaluation of the extremity, the OMT classification system is easier to apply and the association of the anomaly with the embryologic origin during evaluation is possible. We believe that multiple studies from different centers will boost the international acceptance of the OMT classification.


Assuntos
Deformidades Congênitas das Extremidades Superiores , Humanos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Turquia/epidemiologia , Extremidade Superior
13.
J Craniofac Surg ; 31(3): 796-800, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31934978

RESUMO

Improvement of the harmony between facial subunits is the ultimate goal of orthognathic surgery and surgeons must accurately make soft tissue projections for planned bony movements. Yet, few studies have examined the effects' of orthognathic surgery on aesthetic parameters of nasolabial area on a thorough basis.This retrospective study included 61 patients that underwent orthognathic surgery. Demographic data, evaluation period, and surgical details were analyzed. Superficial topographical analysis of intercanthal distance, alar width, nasal height, nasal length, nasal tip protrusion, upper lip height, nasal bone angle, supratip break angle, nasal dorsum angle, nasal tip angle, columellar-lobular angle, columellar-labial angle, upper lip angle, and tip-to-midline angle was recorded before and after surgery. Postoperative changes in these parameters and their correlation to maxillary movements were analyzed.Alar width, upper lip height, columellar-labial angle, supratip break angle, nasal dorsum angle, and upper lip angle increased postsurgery, whereas tip-to-midline angle decreased. Upper lip height and columellar-labial angle were significantly correlated with clockwise/counter-clockwise rotation and anterior re-positioning. Columellar-labial angle increased 2° for each 1 mm of anterior movement and decreased 4° for each 1 mm of counter-clockwise rotation. Novel parameters, such as columellar-lobular angle and tip-to-midline angle, were not associated with any maxillary movement postsurgery.Orthognathic surgery primarily affected the lower third of the nose and changed alar width, upper lip height, supratip break angle, nasal dorsum angle, columellar-labial angle, upper lip angle, and tip-to-midline angle in this region; however, only columellar-labial angle and upper lip height were found to be correlated solely with maxillary movements.


Assuntos
Maxila/cirurgia , Nariz/cirurgia , Adolescente , Adulto , Estética , Feminino , Humanos , Lábio/cirurgia , Masculino , Pessoa de Meia-Idade , Osso Nasal/cirurgia , Procedimentos Cirúrgicos Ortognáticos , Estudos Retrospectivos , Adulto Jovem
14.
J Craniofac Surg ; 30(5): 1479-1483, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31299748

RESUMO

INTRODUCTION: Modern rhinoplasty has an aesthetic and a functional component that cannot be separated. Functional rhinoplasty generally concentrates on optimizing nasal airflow. Numerous techniques have been described for correction of each pathology. There seems to be a consensus on the benefit of surgery to patients with nasal obstruction. Present study aimed to determine if specific airway pathologies have differential effects on patient complaints and techniques addressing them have differential effects on perceived benefit from surgery. PATIENTS/METHOD: The records of 300 patients complaining nasal obstruction and had computerized tomography (CT) between April 2015 and April 2018 were retrospectively reviewed. Based on surgical notes, surgical techniques used for each patient were recorded. A survey using Nasal Obstruction Symptom Evaluation (NOSE) scale is done by phone. After descriptive statistics, preoperative complaint-diagnosed pathology, and postoperative relief-treated pathology relationships were evaluated. RESULTS: Preoperative and postoperative NOSE scores showed statistically significant difference (P <0.001). The CT analysis showed that septal deviation rate among patients complaining nasal obstruction is 85%, internal valve insufficiency rate is 34.4%, mild and severe inferior turbinate hypertrophy was 71% and 6%, respectively. Bullous and total concha bullosa of middle turbinate was 17.3%. Nearly 90% of patients had 2 or more types of pathology in CT analysis. Preoperative and postoperative NOSE scores showed no statistically significant relationship with singular intranasal pathologies and techniques used for correcting them, respectively. CONCLUSION: Despite general fall in NOSE scores in the whole study group, treatment of a specific pathology does not change NOSE score more than a patient who already does not have the pathology. None of the pathologies or treatments addressing them have a dominating effect on preoperative complaints or obtained relief after the surgery. So, success of functional rhinoplasty cannot rely on correction of a specific pathology. A comprehensive analysis and correction of every pathology is paramount.


Assuntos
Obstrução Nasal , Adolescente , Adulto , Feminino , Humanos , Hipertrofia/cirurgia , Masculino , Pessoa de Meia-Idade , Obstrução Nasal/cirurgia , Septo Nasal/cirurgia , Deformidades Adquiridas Nasais/cirurgia , Período Pós-Operatório , Estudos Retrospectivos , Rinoplastia/métodos , Tomografia Computadorizada por Raios X , Conchas Nasais/cirurgia , Adulto Jovem
15.
J Reconstr Microsurg ; 35(4): 244-253, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30231270

RESUMO

BACKGROUND: The use of caffeine is not recommended prior to elective microsurgery due to its demonstrated negative effects on vessel anastomosis by the presumed sympathomimetic induction of vasoconstriction. In this study, we aimed to elucidate the systemic and local effects of caffeine on vessel diameter, anastomosis patency, and degree of intimal hyperplasia during the healing process. METHODS: Twenty-five rats were randomly assigned to five groups: (1) negative control, (2) preoperative systemic caffeine, (3) postoperative systemic caffeine, (4) perioperative systemic caffeine, and (5) a local caffeine group. Both the right and left femoral arteries were used. Ten anastomoses were performed per group. The arterial diameter was measured by micrometer, anastomosis patency was assessed surgically and histologically, and the histological examination was conducted 3 weeks postoperatively to determine intimal hyperplasia. RESULTS: The overall patency rate was 96%. Mild vasoconstriction was observed in the systemic caffeine groups (statistically insignificant); however, there were no negative effects on anastomosis patency. Local caffeine irrigation resulted in significant vasodilatation in the local caffeine group (p = 0.001); a similar effect was not observed in the other groups. There was a significant decrease in the intima/media ratio in the local caffeine group (p < 0.01), when compared with the control and systemic caffeine groups. No other intima/media ratio differences were observed among other comparison groups. CONCLUSION: The systemic administration of caffeine, although statistically insignificant, has an observable effect on vasoconstriction. However, it does not appear to have negative effects on anastomosis patency regardless of its application period (pre-, post-, or perioperatively). The local application of caffeine resulted in considerable vasodilatation as opposed to the vasoconstriction effect in the systemic caffeine groups. Decreased intimal hyperplasia at the anastomosis edge, and antifibrotic properties in the surgical field were also observed in this group. Histologically, the local caffeine group demonstrated an additional beneficial effect on anastomosis remodeling.


Assuntos
Anastomose Cirúrgica/métodos , Cafeína/farmacologia , Estimulantes do Sistema Nervoso Central/farmacologia , Hiperplasia/induzido quimicamente , Grau de Desobstrução Vascular/efeitos dos fármacos , Animais , Feminino , Microcirurgia , Modelos Animais , Período Pré-Operatório , Ratos , Ratos Wistar
16.
J Plast Surg Hand Surg ; 52(5): 312-318, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30039725

RESUMO

Smoking is a leading cause of flap failure. Varenicline-assisted smoking cessation has shown beneficial effects on vascular endothelial function. The aim of this study was to determine whether varenicline conveys beneficial effects for skin flap survival. Twenty-four rats were randomly divided into four groups of six. The rats in the control group received normal saline subcutaneous injections, and those in the nicotine group received subcutaneous nicotine injections. The rats in the varenicline group received varenicline intraperitoneally, and those in the nicotine-varenicline group received both nicotine and varenicline. At the end of week 3, the dorsal skin flaps were raised in all rats. On postoperative day 7, the flaps were evaluated by direct observation, microangiography, and light microscopy. The mean necrotic area of the flaps was significantly greater in the nicotine group than in the control group (49.2 ± 4.71 vs. 22.03 ± 0.93%, respectively, p < .01) and significantly higher in the nicotine-varenicline group than in the varenicline group (22.4 ± 1.23 vs. 9.2 ± 0.59%, respectively, p < .01). However, no significant difference was observed between the control and nicotine-varenicline groups (p = .934). Microangiographically, vascularity was lowest in the nicotine group and highest in the varenicline group. Histologically, larger areas of necrosis, more severe inflammation and less vessel formation were observed in the nicotine group. Healing, exhibited by a greater number of vessels, was evident in the varenicline-applied groups. Varenicline appears to increase the microcirculation of random flaps, as shown by decreased flap necrosis and increased vascularity.


Assuntos
Sobrevivência de Enxerto , Agentes de Cessação do Hábito de Fumar/farmacologia , Retalhos Cirúrgicos/irrigação sanguínea , Vareniclina/farmacologia , Angiografia , Animais , Microcirculação/efeitos dos fármacos , Microscopia , Modelos Animais , Nicotina/administração & dosagem , Agonistas Nicotínicos/administração & dosagem , Ratos Wistar , Retalhos Cirúrgicos/patologia
17.
J Craniofac Surg ; 29(1): e100-e103, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28212126

RESUMO

Submucous cleft palate (SMCP) is a relatively rare variant of the common pathology of cleft palate with specific anatomic and clinical features. Even though there are many surgical options defined previously to correct the SMCP, correction of the velopharyngeal insufficiency and obtaining ideal speech results remains as a challenge. The aim of this article was to compare the speech benefits of Furlow double opposing Z plasty and posterior pharyngeal flap operation combined with intravelar veloplasty for the correction of SMCP using objective assessment tools. This study reviewed 29 patients who underwent either superiorly based posterior pharyngeal flap combined with intravelar veloplasty or Furlow palatoplasty for submucous cleft palate repair between years 2005 and 2011. The mean standard deviation age at palate repair was 123.6 ±â€Š65.8 months and the mean follow-up period was 31.2 ±â€Š15.9 months. The postoperative results demonstrated that in both groups significantly correction has been achieved in means of velopharygeal closure (P values for Furlow and pharyngeal flap groups are 0.012 and 0.001 respectively). The correction of the nasalance scores obtained depending on the surgical procedure for /sa/ and /ka/ syllables demonstrated significantly more benefit with pharyngeal flap combined with intravelar veloplasty than Furlow palatoplasty (P = 0.026 for each). In the treatment of submucous clefts, both Furlow palatoplasty and pharyngeal flap procedure combined with intravelar veloplasty appear to be effective whereas for the patients having significant signs of hypernasality, contribution of pharyngeal flap may be taken into consideration.


Assuntos
Enxerto de Osso Alveolar , Fissura Palatina/cirurgia , Palato Mole/cirurgia , Complicações Pós-Operatórias , Distúrbios da Fala , Insuficiência Velofaríngea , Enxerto de Osso Alveolar/efeitos adversos , Enxerto de Osso Alveolar/métodos , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Avaliação de Processos e Resultados em Cuidados de Saúde , Faringe/cirurgia , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia , Procedimentos de Cirurgia Plástica/efeitos adversos , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos , Distúrbios da Fala/diagnóstico , Distúrbios da Fala/etiologia , Retalhos Cirúrgicos , Resultado do Tratamento , Insuficiência Velofaríngea/diagnóstico , Insuficiência Velofaríngea/etiologia
18.
J Craniofac Surg ; 28(7): 1670-1674, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28692498

RESUMO

Fronto-orbital advancement using distraction techniques involves the dura left attached to the osteotomized bone segment to avoid dead space formation and dural injury, whereas it is impossible to reshape the supraorbital bar and the frontal bone complex, when necessary. Our approach combines advantageous parts of conventional and distraction osteogenesis techniques as remodel and distract the supraorbital bar and frontal bone complex as a free bone graft. Twenty-seven patients either being syndromic and nonsyndromic craniosynostosis, with at least 3 years of follow-up were reviewed in this study. Mean age of the patients at the time of the operation was 23.44 ±â€Š18.42 months and mean operative time was 4.96 ±â€Š0.97 hours. Blood transfusion was required in all patients, with an average of 112.04 ±â€Š44.60 mL. Amount of the distraction ranged 10 to 30 mm, a mean of 17.26 ±â€Š4.71 mm for the right side and 18.15 ±â€Š4.69 mm for the left side. Mean duration of consolidation was 98.26 ±â€Š12.98 days and mean follow-up was 41.33 ±â€Š22.92 months. In this study, result of internal distraction of fronto-orbital segment as a nonvascularized bone graft in craniosynostotic patients is reviewed to emphasize the efficacy of the nonvascularized bone graft distraction in management of craniosynostosis. Graft distraction after fronto-orbital and cranial vault remodeling appears to be safe and effective approach in correcting severe craniosynostosis deformities especially necessitating asymmetrical advancement.


Assuntos
Transplante Ósseo/métodos , Craniossinostoses/cirurgia , Osteogênese por Distração/métodos , Pré-Escolar , Seguimentos , Humanos , Lactente
19.
Turk J Med Sci ; 47(1): 103-108, 2017 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-28263475

RESUMO

BACKGROUND/AIM: Due to increased average life expectancy, the number of elderly patients requiring complex reconstructive microsurgical procedures is rising. Age, comorbid conditions, and location of operation are all possible risk factors. The aim of this study is to evaluate surgical outcomes to set the right criteria. MATERIALS AND METHODS: Between 1996 and 2014, the data of 30 patients over the age of 70, who were treated with microsurgical techniques in our clinic, were extracted from patient records and analyzed retrospectively. RESULTS: In this patient population, flap success rate was 94%. Systemic and surgical complication rates were 40% and 48%, respectively. Complication rates were higher in head and neck cases but there was no statistically significant difference compared to reconstructions in other areas. Loss of oral lining, as a serious complication, had no effect on complications in head and neck reconstruction patients in our series. Conclusions: Flap success is comparable to younger age groups but procedures are associated with a high rate of complications Evaluating and controlling comorbid conditions is important. The American Society of Anesthesiologists scoring system is reliable in this patient population. Although complications are more common, these procedures can be performed safely in elderly populations with careful patient selection.


Assuntos
Retalhos de Tecido Biológico/cirurgia , Microcirurgia/métodos , Microvasos/cirurgia , Microvasos/transplante , Idoso , Idoso de 80 Anos ou mais , Humanos , Segurança do Paciente , Complicações Pós-Operatórias , Estudos Retrospectivos
20.
Microsurgery ; 37(5): 442-450, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28319277

RESUMO

BACKGROUND: Prolonged mean life expectancy gives rise to a more populated and older patient group. With increasing number of cases during the past decades, older patients are regarded as candidates for microsurgical interventions. Whether advanced patient age is an independent risk factor for microsurgical reconstruction is still an ongoing matter of debate. METHODS: The Cochrane Central Register of Controlled Trials, PubMed, MEDLINE, CINAHL and EMBASE databases were screened for combination of the key words "elderly", "geriatric", "advanced age", "free flap", "microsurgery", free tissue transfer" by using time limits between 1989 and 2015. RESULTS: According to results of the meta-analysis, there was no significant difference in the flap success rates(P =.39, CI = 0.848 to 2.329) and surgical complication rates (P = .83, CI = 0.792 to 1.163) between the young and elderly patient groups. However, the systemic complication rates(P = .02, CI = 1.468 to 3.572), preoperative ASA scores(P < .0001, CI = 0.342 to 1.078), and mortality rates (P = .03, CI = 2.636 to 9.055) were found to be significantly higher in the elderly patients. CONCLUSIONS: Although an increased rate of systemic complications and mortality has been associated with advanced age, our study results showed no significant difference between the flap success rates and surgical complications. A successful reduction in systemic complications would bring the risk level of reconstructive microsurgical interventions of the elderly patient group to the level of the young patient group. © 2017 Wiley Periodicals, Inc. Microsurgery 37:442-450, 2017.


Assuntos
Retalhos de Tecido Biológico/transplante , Microcirurgia/métodos , Procedimentos de Cirurgia Plástica/métodos , Complicações Pós-Operatórias/etiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Humanos , Modelos Estatísticos , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/prevenção & controle , Fatores de Risco
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