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Cirurgia Bariátrica , Hemoglobinas Glicadas , Controle Glicêmico , Obesidade Mórbida , Humanos , Obesidade Mórbida/cirurgia , Cirurgia Bariátrica/estatística & dados numéricos , Reino Unido/epidemiologia , Feminino , Hemoglobinas Glicadas/metabolismo , Masculino , Centros de Atenção Terciária , Adulto , Resultado do Tratamento , Pessoa de Meia-Idade , Glicemia/metabolismo , Estudos Retrospectivos , Diabetes Mellitus Tipo 2RESUMO
BACKGROUND: Current recommendations advocate the achievement of an optimal glucose control (HbA1c < 69 mmol/mol) prior to elective surgery to reduce risks of peri- and post-operative complications, but the relevance for this glycaemic threshold prior to Bariatric Metabolic Surgery (BMS) following a specialist weight management programme remains unclear. METHODS: We undertook a retrospective cohort study of patients with type 2 diabetes mellitus (T2DM) who underwent BMS over a 6-year period (2016-2022) at a regional tertiary referral following completion of a specialist multidisciplinary weight management. Post-operative outcomes of interest included 30-day mortality, readmission rates, need for Intensive Care Unit (ICU) care and hospital length of stay (LOS) and were assessed according to HbA1c cut-off values of < 69 (N = 202) and > 69 mmol/mol (N = 67) as well as a continuous variable. RESULTS: A total of 269 patients with T2D were included in this study. Patients underwent primary Roux en-Y gastric bypass (RYGB, n = 136), Sleeve Gastrectomy (SG, n = 124), insertion of gastric band (n = 4) or one-anastomosis gastric bypass (OAGB, n = 4). No significant differences in the rates of complications were observed between the two groups of pre-operative HbA1c cut-off values. No HbA1c threshold was observed for glycaemic control that would affect the peri- and post-operative complications following BMS. CONCLUSIONS: We observed no associations between pre-operative HbA1C values and the risk of peri- and post-operative complications. In the context of a specialist multidisciplinary weight management programme, optimising pre-operative HbA1C to a recommended target value prior to BMS may not translate into reduced risks of peri- and post-operative complications.
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Cirurgia Bariátrica , Diabetes Mellitus Tipo 2 , Derivação Gástrica , Obesidade Mórbida , Humanos , Obesidade Mórbida/cirurgia , Diabetes Mellitus Tipo 2/cirurgia , Diabetes Mellitus Tipo 2/complicações , Hemoglobinas Glicadas , Controle Glicêmico/efeitos adversos , Estudos Retrospectivos , Cirurgia Bariátrica/efeitos adversos , Derivação Gástrica/efeitos adversos , Complicações Pós-Operatórias/etiologia , Gastrectomia/efeitos adversos , Encaminhamento e Consulta , Reino Unido/epidemiologia , Resultado do TratamentoRESUMO
BACKGROUND: The ward round is an integral part of everyday surgical practice. It is a complex clinical activity that requires both sound clinical management and communication skills. This study reports the results of a consensus-building exercise on the common aspects of the general surgical ward rounds. METHODS: The consensus-building committee involving a range of stakeholders from 16 United Kingdom (UK) National Health Service trusts took part in this consensus exercise. The members discussed and suggested a series of statements concerning surgical ward round. An agreement of ≥ 70% among members was regarded as a consensus. RESULTS: Thirty-two members voted on 60 statements. There was a consensus on fifty-nine statements after the first round of voting, and one statement was modified before it reached consensus in the second round. The statements covered nine sections: a preparation phase, team allocation, multidisciplinary approach to the ward round, structure of the round, teaching considerations, confidentiality and privacy, documentation, post-round arrangements, and weekend round. There was a consensus on spending time to prepare for the round, a consultant-led round, involvement of the nursing staff, an MDT round at the beginning and end of the week, a minimum of 5 min allocated to each patient, utilisation of a round checklist, afternoon virtual round, and a clear handover and plan for the weekend. CONCLUSION: The consensus committee achieved agreement on several aspects concerning the surgical ward rounds in the UK NHS. This should help improve the care of surgical patients in the UK.
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Medicina Estatal , Humanos , Consenso , Técnica Delphi , Reino UnidoAssuntos
Ventosaterapia , Nevo com Halo/terapia , Vitiligo/terapia , Adolescente , Adulto , Criança , Feminino , Humanos , MasculinoRESUMO
Narrowband-ultraviolet B (NB-UVB) is considered one of the main therapeutic tools in vitiligo, which is able to induce repigmentation and halt depigmentation. However, little remains known about the effect of NB-UVB on TYR gene family, the main pigmentary genes, in vitiligo patients. To assess the effect of NB-UVB on expression of some genes related to the pigmentary problem of vitiligo; tyrosinase (TYR), tyrosinase related protein 1 (TYRP1) and tyrosinase related protein 2 (TYRP2), mRNA levels of those genes were quantitatively evaluated by Real-Time quantitative Polymerase Chain Reaction (RT-qPCR) in skin biopsies obtained from 30 patients with nonsegmental vitiligo and five healthy controls. Vitiligo patients were classified into two groups; group 1, involving 12 untreated vitiligo patients and group 2, including 18 vitiligo patients treated by NB-UVB. The levels of TYR, TYRP-1, and TYRP-2 mRNAs in untreated group were significantly lower than in control subjects (P < .001). In NB-UVB treated group, the three genes were significantly higher than in group 1 (P < .001), however, they were still significantly lower than in the control subjects (P < .001). A significant positive correlation was detected between TYR and TYRP-2 genes in group 2 (P = .03). This study demonstrated that mRNA level of TYR, TYRP-1, and TYRP-2, which decreased in vitiligo, was significantly increased upon treatment with NB-UVB. Accordingly, the mechanism of depigmentation in vitiligo disease and repigmentation by NB-UVB treatment may be related to the changes in the expression of these genes.
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Oxirredutases Intramoleculares/genética , Glicoproteínas de Membrana/genética , Monofenol Mono-Oxigenase/genética , Oxirredutases/genética , Terapia Ultravioleta , Vitiligo , Humanos , RNA Mensageiro/genética , Estudos Retrospectivos , Resultado do Tratamento , Vitiligo/diagnóstico , Vitiligo/genética , Vitiligo/terapiaRESUMO
The name of author Anthony Antypas was misspelled in the original article. It is correct here.
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BACKGROUND: Vitiligo is a depigmentary skin disfigurement resulting from destruction of melanocytes caused by a possible malfunctioning immunity. This destruction could be linked to an aberrant T-cell-mediated immune response. Cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) and programmed death-1 (PD-1) are immune checkpoints capable of downregulating T-cell immune functions. OBJECTIVES: To evaluate the pattern of expression of PD-1 and CTLA-4 in active vitiligo skin. METHODS: Thirty nonsegmental vitiligo (NSV) patients had been included in this pilot study. Marginal, lesional, and nonlesional skin biopsies were obtained. PD-1 and CTLA-4 immunohistochemistry expression in the mononuclear inflammatory infiltrates were evaluated using digital images. RESULTS: The marginal and lesional inflammatory infiltrates were significantly abundant when compared to nonlesional ones. The marginal infiltrates were significantly abundant when compared to the lesional ones. PD-1 and CTLA-4 were significantly expressed in the marginal and lesional infiltrates when compared to nonlesional skin. Moreover, the marginal expression of PD-1 was significantly higher than the lesional expression. However, no similar significant difference in CTLA-4 expression was found between the marginal and lesional infiltrates. Significant positive correlations were found between the expressions of PD-1 and CTLA-4 in marginal and lesional infiltrates. CONCLUSION: Programmed death-1 and CTLA-4 are expressed within the inflammatory infiltrate of active NSV. Further studies are required to confirm their significance in the development or limitation of the disease.
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Vitiligo , Humanos , Melanócitos , Projetos Piloto , Pele , Linfócitos TRESUMO
Bariatric and metabolic surgery is associated with significant improvement in obesity-related comorbidities, but for patients with non-alcoholic fatty liver disease (NAFLD), clinical outcomes are dependent on the severity of liver disease, i.e. improvement of NAFLD in most patients but increased risks of fulminant hepatic failure and/or bleeding varices in patients with more advanced cirrhosis. Our study showed that absolute values of liver enzymes were poor indicator of risk of liver fibrosis. The use of AST/ALT ratio, Fib 4 or NAFLD scores were appropriate screening tools, with each risk score appearing to pick out a certain phenotype of patients based on age, BMI or individual values of ALT, AST or platelet count. There is lack of agreement in some cases between FIB-4 scores and NAFLD scores when ruling out patients at high risk of liver fibrosis. Meticulous screening of patients at risk of liver fibrosis is crucial in order to reduce the risk of liver-related complications following bariatric and metabolic surgery.
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Cirurgia Bariátrica , Hepatopatia Gordurosa não Alcoólica , Obesidade Mórbida , Humanos , Cirrose Hepática/etiologia , Testes de Função Hepática , Obesidade Mórbida/cirurgia , Estudos Retrospectivos , Fatores de RiscoRESUMO
BACKGROUND & AIMS: The aims of this study were to identify whether differences in distribution of adipose tissue and skeletal muscle in obese and non-obese individuals contribute to the magnitude of the postoperative inflammatory response and insulin resistance, with and without preoperative treatment with carbohydrate drinks. METHODS: Thirty-two adults (16 obese/16 non-obese) undergoing elective major open abdominal surgery participated in this 2 × 2 factorial, randomised, double-blind, placebo-controlled study. Participants received Nutricia preOp® or placebo (800 ml on the night before surgery/400 ml 2-3 h preoperatively) after stratifying for obesity. Insulin sensitivity was measured using the hyperinsulinaemic-euglycaemic clamp preoperatively and on the 1st postoperative day. Vastus lateralis, omental and subcutaneous fat biopsies were taken pre- and postoperatively and analysed after RNA extraction. The primary endpoint was within subject differences in insulin sensitivity. RESULTS: Major abdominal surgery was associated with a 42% reduction in insulin sensitivity from mean(SD) M value of 37.3(11.8) µmol kg-1 fat free mass (FFM) to 21.7(7.4) µmol kg-1 FFM, but this was not influenced by obesity or preoperative carbohydrate treatment. Activation of the triggering receptor expressed on myeloid cells (TREM1) pathway was seen in response to surgery in omental fat samples. In postoperative muscle samples, gene expression differences indicated activation of the peroxisome proliferator-activated receptor (PPAR-α)/retinoid X-receptor (RXR-α) pathway in obese but not in non-obese participants. There were no significant changes in gene expression pathways associated with carbohydrate treatment. CONCLUSION: The reduction in insulin sensitivity associated with major abdominal surgery was confirmed but there were no differences associated with preoperative carbohydrates or obesity.
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Abdome/cirurgia , Adiposidade/fisiologia , Composição Corporal/fisiologia , Carboidratos da Dieta/administração & dosagem , Inflamação/fisiopatologia , Resistência à Insulina/fisiologia , Complicações Pós-Operatórias/fisiopatologia , Tecido Adiposo/fisiopatologia , Adulto , Idoso , Método Duplo-Cego , Procedimentos Cirúrgicos Eletivos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/fisiologia , Obesidade/fisiopatologia , Cuidados Pré-Operatórios/métodosRESUMO
BACKGROUND: Halo nevus (HN) is a rare dermatologic disorder characterized by typical whitish rim surrounding an existing melanocytic nevus resembling halo. It is a cosmetic problem that may be linked to vitiligo, and it is advised to remove these nevi in order to avoid development of vitiligo. OBJECTIVES: The aim of the present study is to evaluate the cosmetic outcome after nevus removal and leukoderma dermabrasion with epithelial graft followed by narrow-band ultraviolet B (NB-UVB) phototherapy as management of resistant halo nevi and avoidance of development of vitiligo. PATIENTS AND METHODS: Ten patients with persisting halo nevi were selected as candidates in this study. Superficial dermabrasion was carried out using proper diamond fraises on depigmented rim and then punch biopsy probes with suitable size were used to harvest the nevus. Thiersch graft was prepared and applied on the dermabraded depigmented area. After 1 week of the procedure, patients were exposed to NB-UVB twice weekly and were followed up for 3 months. RESULTS: Repigmentation was noticed in 2 weeks and was nearly fully accomplished in all 10 patients within the 3-month period. No other vitiligo lesions developed during this period in all patients except for one case. CONCLUSION: Excision of Sutton's nevus with combined dermabrasion and Thiersch grafting followed by phototherapy is a good aesthetic maneuver in treating halo nevi and helps in avoiding further vitiligo depigmentation.
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Dermabrasão/métodos , Nevo com Halo/terapia , Fototerapia/métodos , Transplante de Pele/métodos , Adolescente , Adulto , Criança , Terapia Combinada , Feminino , Humanos , Masculino , Nevo com Halo/cirurgia , Adulto JovemRESUMO
OBJECTIVE: The aim of this study was to compare the accuracy of measurements of body composition made using dual x-ray absorptiometry (DXA), analysis of computed tomography (CT) scans at the L3 vertebral level, and bioelectrical impedance analysis (BIA). METHODS: DXA, CT, and BIA were performed in 47 patients recruited from two clinical trials investigating metabolic changes associated with major abdominal surgery or neoadjuvant chemotherapy for esophagogastric cancer. DXA was performed the week before surgery and before and after commencement of neoadjuvant chemotherapy. BIA was performed at the same time points and used with standard equations to calculate fat-free mass (FFM). Analysis of CT scans performed within 3 mo of the study was used to estimate FFM and fat mass (FM). RESULTS: There was good correlation between FM on DXA and CT (r2 = 0.6632; P < 0.0001) and FFM on DXA and CT (r2 = 0.7634; P < 0.0001), as well as FFM on DXA and BIA (r2 = 0.6275; P < 0.0001). Correlation between FFM on CT and BIA also was significant (r2 = 0.2742; P < 0.0001). On Bland-Altman analysis, average bias for FM on DXA and CT was 0.2564 with 95% limits of agreement (LOA) of -9.451 to 9.964. For FFM on DXA and CT, average bias was -0.1477, with LOA of -8.621 to 8.325. For FFM on DXA and BIA, average bias was -3.792, with LOA of -15.52 to 7.936. For FFM on CT and BIA, average bias was -2.661, with LOA of -22.71 to 17.39. CONCLUSION: Although a systematic error underestimating FFM was demonstrated with BIA, it may be a useful modality to quantify body composition in the clinical situation.
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Absorciometria de Fóton/estatística & dados numéricos , Antropometria/métodos , Composição Corporal , Impedância Elétrica , Tomografia Computadorizada por Raios X/estatística & dados numéricos , Idoso , Ensaios Clínicos como Assunto , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos TestesRESUMO
BACKGROUND: Laparoscopic Roux-en-Y gastric bypass (LRYGB) is an effective treatment for morbid obesity resulting in approx. 70% excess weight loss (EWL) at 1-2 years. The aim of this study was to identify factors predictive of inadequate EWL following primary LRYGB. METHODS: Data on consecutive patients who underwent primary LRYGB between September 2009 and March 2013 were collected prospectively. The effects of age, gender, baseline body mass index (BMI), preoperative EWL, length of time between initial consultation and surgery (TtS), presence of diabetes mellitus (DM), arthritis, obstructive sleep apnea (OSA) and postoperative length of hospital stay (LOS) on EWL at 12 months were studied. General linear regression models were used to evaluate group differences in EWL and to assess independent associations between baseline variables and EWL at 12 months. Stepwise regression analyses were used to estimate individual contributions of independent variables to the variance in EWL at 12 months. In this study, inadequate EWL was defined as <50% EWL at 12 months. RESULTS: LRYGB was performed in 227 patients with a mean ± SD age and BMI of 48.6 ± 11 years and 53.6 ± 7.1 kg/m2, respectively. Female to male ratio was 3:1. EWL at 12 months had an inverse correlation with age (p = 0.01), baseline BMI (p < 0.001), TtS (p = 0.001), OSA (p = 0.039) and DM (p = 0.039). Conversely, there was a significant positive association between preoperative EWL and that at 12 months (p = 0.009). There was no effect of gender, arthritis or LOS on EWL at 12 months. Multiple regression analysis demonstrated inadequate EWL at 12 months to be predicted by older age (>60 years), patients with diabetes, higher baseline BMI (>60), those who gained weight preoperatively and in patients who waited longer than 18 months for surgery (p = 0.027). CONCLUSIONS: Preoperative factors that predict inadequate EWL at 12 months following primary LRYGB include higher initial BMI, older age, presence of DM and preoperative weight gain. Identification of these factors preoperatively should aid in providing intensive support to these at-risk patient groups.
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Derivação Gástrica/métodos , Obesidade Mórbida/cirurgia , Redução de Peso , Adulto , Índice de Massa Corporal , Feminino , Humanos , Laparoscopia/métodos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Período Pós-Operatório , Valor Preditivo dos Testes , Estudos Prospectivos , Estudos Retrospectivos , Falha de TratamentoRESUMO
BACKGROUND: Vitiligo is a depigmenting disease characterized by episodes of stability and activity without a fixed sequence, and active phases demonstrate immune attacks toward vulnerable melanocytes. Epithelial grafts were introduced to treat recalcitrant vitiligo patches aiming to provide new generations of melanocytes. AIMS: The aim of study was to evaluate the possible permanency of succeeded epithelial grafts during a coming activity episode. METHODS: This study included 20 nonsegmental vitiligo cases. They were epithelial grafted, success was maintained with the use of UV sessions for a year, and further follow-up was allowed until new phases of activity developed. RESULTS: The grafted areas, in all cases, were spared during the activity episodes in spite of the development of new depigmented lesions in other parts of skin neighboring the grafted areas or in remote sites. CONCLUSION: The permanency of epithelial grafts in spite of disease reactivity is a good sign and magnifies the value of surgical approaches in management of vitiligo. New genetically different melanocytes should have been provided and were able to resist the new immune attacks in spite of the yielding of other skin melanocytes.
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Epitélio/transplante , Terapia Ultravioleta , Vitiligo/fisiopatologia , Vitiligo/terapia , Autoenxertos/imunologia , Terapia Combinada , Seguimentos , Humanos , Melanócitos/imunologia , Cuidados Pós-OperatóriosRESUMO
BACKGROUND: Laparoscopic Roux en-Y gastric bypass (LRYGB) is an established therapeutic modality for type 2 diabetes mellitus (T2DM). However, there is paucity of data on the outcomes of LRYGB on T2DM beyond 2 years. This study aimed to examine the medium-term effects of LRYGB on T2DM and determine the predictors of T2DM resolution. METHODS: Prospective data were collected for all consecutive LRYGB performed from September 2009 to November 2010. The American Diabetes Association guidelines were used to define complete (CR) or partial (PR) remission of diabetes. Diabetes status was considered improved when there was >50 % reduction in the dose of medications or when glycaemic control was achieved after stopping insulin. The effects of baseline characteristics, diabetes data and weight loss data at 4 years on T2DM remission were studied. RESULTS: Forty-six patients with T2DM underwent LRYGB with mean ± SD age and body mass index (BMI) of 48.6 ± 9.6 years and 50.4 ± 6.5 kg/m2, respectively. Median (IQR, interquartile range) duration of T2DM preoperatively was 60 (36-126) months. Median (IQR) follow-up was 52 (50-57) months. T2DM remission was achieved in 64 % of patients (44 % CR, 20 % PR), and a further 28 % of patients had improvement in their diabetes status. Multivariate analyses demonstrated significant excess weight loss (EWL) [P = 0.008] and lower BMI [P = 0.04] at 4 years to be the only independent predictors of T2DM medium-term outcomes. CONCLUSION: The medium-term effects of LRYGB on T2DM remission/improvement were maintained in 92 % of patients. EWL and lower BMI at 4 years were independent predictors of T2DM remission.
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Diabetes Mellitus Tipo 2/cirurgia , Derivação Gástrica , Indução de Remissão , Índice de Massa Corporal , Feminino , Humanos , Laparoscopia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Redução de PesoRESUMO
BACKGROUND: Cytokeratins (CK) belong to the family of intermediate filament proteins, and among them specific epithelial keratins are considered markers for stem cells activation. OBJECTIVES: This study aims to investigate the expression of CK15 and CK19 as possible stem cell markers in vitiligo during phototherapy. METHODS: The study was conducted on vitiligo patients receiving narrow-band ultraviolet therapy. Immunohistochemical staining for CK15 and CK19 was carried out, and clinical follow-up continued for 4 weeks. RESULTS: Of 28 patients, CK15 expression was demonstrated in 17 cases (61%) while CK19 expression was demonstrated in 11 cases (39%). Cells expressing positive staining were demonstrated in follicular and interfollicular epithelium. Expression was clearly demonstrated in patients younger than 20 years old, with shorter disease duration, with disease stability, and with normally pigmented hairs. Expression of cytokeratins was significantly correlated to improvement of vitiligo lesions. CONCLUSION: CK15 and CK19 are expressed in vitiligo during UV repigmentation in the follicular and interfollicular epithelium. This expression of cytokeratins was significantly correlated to improvement and can be considered valuable tool to monitor stem cells stimulation for the sake of the repigmentation process in vitiligo.
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Epitélio/química , Queratina-15/análise , Queratina-19/análise , Vitiligo/metabolismo , Vitiligo/radioterapia , Adolescente , Adulto , Fatores Etários , Idoso , Biomarcadores/análise , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Células-Tronco/química , Fatores de Tempo , Terapia Ultravioleta , Adulto JovemRESUMO
BACKGROUND: Laparoscopic Roux en-Y gastric bypass (LRYGB) achieves sustained long-term weight loss and reduced mortality in morbidly obese patients. It is routinely performed using an ante- or retrocolic approach with the jejuno-jejunostomy constructed in the infracolic compartment. We have modified the standard technique of performing LRYGB by constructing both anastomoses in the supracolic compartment. This study describes the outcomes of consecutive primary LRYGB performed using this novel retrocolic-supracolic approach. METHODS: Data were prospectively collected on consecutive primary LRYGB performed in a tertiary-referral Bariatric Centre in the United Kingdom from September 2009 to March 2013. Data included demographics, operative outcomes (duration of surgery, postoperative anastomotic leak/bleeding/reoperations), development of strictures, length of stay, excess weight loss (EWL) and resolution of diabetes mellitus. RESULTS: Hand-sewn LRYGB was successfully performed using the retrocolic-supracolic approach in 300 of 307 (98 %) consecutive patients (72 % female). Median (IQR) age, weight and baseline body mass index were 49 (41-56) years, 146 (134-163) kg and 52.9 (48.8-57.2) kg/m(2), respectively. There were 4 (1.3 %) anastomotic leaks and 8 (2.6 %) postoperative bleeds. The 30-day reoperation rate was 1.6 %. Median (IQR) hospital stay was 2 (2-2) days. Postoperative dysphagia requiring endoscopic balloon dilatation occurred in 19 (6.3 %) patients. Mean ± SD 12-month EWL was 69.9 ± 19.0 %. Within the follow-up period, 81 % of patients with type II diabetes mellitus achieved remission and 19 % reduced dosage of diabetes medication. CONCLUSIONS: LRYGB performed using the retrocolic-supracolic approach was safe, feasible, technically advantageous and resulted in clinical outcomes akin to the standard infracolic approach.
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Anastomose em-Y de Roux/métodos , Derivação Gástrica/métodos , Laparoscopia/métodos , Obesidade Mórbida/cirurgia , Hemorragia Pós-Operatória/etiologia , Adulto , Anastomose em-Y de Roux/efeitos adversos , Fístula Anastomótica/etiologia , Transtornos de Deglutição/etiologia , Transtornos de Deglutição/terapia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/cirurgia , Dilatação , Feminino , Derivação Gástrica/efeitos adversos , Humanos , Jejuno/cirurgia , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/complicações , Reoperação , Redução de PesoRESUMO
OBJECTIVE: Treatment of acne scarring is always a challenge. Microneedling therapy or percutaneous collagen induction is a new addition to the treatment modalities for such scars and has been reported to be simple and effective in atrophic acne scar treatment. The aim of this study is to evaluate the clinical effect and objectively quantify the histological changes of acne scarring in response to skin microneedling. DESIGN: A prospective clinical study. PARTICIPANTS: Ten patients with different types of atrophic acne scars were subjected to three months of skin microneedling treatment (six sessions at two-week intervals). MEASUREMENTS: Patients were photographed, and skin biopsies were obtained at baseline as well as one and three months from the start of treatment. Histometry for epidermal thickness and quantitative evaluation of total elastin; newly synthesized tropoelastin; collagen types I, III, and VII; and newly synthesized collagen were performed for all biopsies. RESULTS: Compared to the baseline, patients' evaluations revealed noticeable clinical improvement in atrophic post-acne scars in response to skin microneedling. There was a statistically significant increase (p<0.05) in the mean of collagen types I, III, and VII and newly synthesized collagen, while total elastin was significantly decreased (p<0.05) after the end of treatment. CONCLUSIONS: Multiple minimally invasive sessions of skin microneedling are an effective treatment for post-acne atrophic scars as it stimulates the repair processes with the advantage of being a relatively risk-free, in-office procedure with minimal patient recovery time.
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BACKGROUND: Microneedling or percutaneous collagen induction is a new modality used for skin rejuvenation, tightening, and scar remodeling. It offers a simple and effective treatment for photoaged skin with minimal disruption of the epidermis, thus limiting adverse effects and minimizing downtime. OBJECTIVES: To evaluate the efficacy, coupled with quantitative assessment, of the histological changes in response to multiple sessions of skin microneedling in the treatment of aging skin. PATIENTS AND METHODS: Ten patients with Fitzpatrick skin type III and IV and Glogau class II to III wrinkles were subjected to six skin microneedling sessions at 2-week intervals. Standard photographs and skin biopsy specimens were obtained at baseline and at one and three months after the start of treatment. Histometry for epidermal thickness and quantitative evaluation of collagen types I, III, and VII, newly synthesized collagen, total elastin, and tropoelastin were performed for all skin biopsies. RESULTS: Skin microneedling produced noticeable clinical improvement of photoaged skin, with corresponding histological enhancement. Compared to the baseline, collagen types I, III, and VII, as well as newly synthesized collagen, together with tropoelastin showed a statistically significant increase (P < 0.05) in response to treatment, while the mean level of total elastin was significantly decreased (P < 0.05) after treatment. CONCLUSIONS: Skin microneedling is a promising minimally invasive treatment option with the advantage of increased collagen production. However, multiple sessions are usually needed to maintain the improvement achieved.
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Técnicas Cosméticas , Epiderme/patologia , Face , Agulhas , Rejuvenescimento , Envelhecimento da Pele/patologia , Adulto , Biópsia , Colágeno Tipo I/metabolismo , Colágeno Tipo III/metabolismo , Colágeno Tipo VII/metabolismo , Técnicas Cosméticas/instrumentação , Elastina/metabolismo , Epiderme/metabolismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Rejuvenescimento/fisiologia , Envelhecimento da Pele/fisiologia , Resultado do Tratamento , Tropoelastina/metabolismoRESUMO
BACKGROUND: In laparoscopic Roux en-Y gastric bypass (LRYGB), the gastrojejunal anastomosis (GJA) may be performed using linear-stapled (LS) or completely hand-sewn (HS) techniques. No published study has compared operative and clinical outcomes following LS and HS LRYGB when performed by surgeons beyond the learning curve. This study examined outcomes of both techniques performed by two 'technique-specific' bariatric fellowship-trained surgeons. METHODS: Data on consecutive primary LRYGB undertaken in two university hospitals were prospectively collected over 28-months and included demographics, co-morbidities, postoperative morbidity, mortality, length of stay (LOS), reoperations, and excess weight loss (EWL). Data were presented as mean ± SD. RESULTS: There were 366 LRYGB studied (LS = 144 and HS = 222 patients) with 96 % 12-month follow-up. All procedures were completed laparoscopically with no anastomotic leak or mortality. The LS cohort had a lower body mass index (48.3 ± 5.0 vs 53.8 ± 7.1, P < 0.001), greater incidence of diabetes mellitus (P = 0.009) and sleep apnea (P = 0.007). The HS cohort had more patients in Obesity Surgery Mortality Risk Score classes B and C (P = 0.004 and P = 0.01), and shorter operating time (127 ± 30 vs 172 ± 30 min, P < 0.001). There were no differences in LOS, complications, or reoperations. The HS technique was associated with more GJA stenoses requiring endoscopic dilatation (7.7 vs 0 %, P < 0.001). At 12 months, EWL (%) was comparable between the two techniques (LS 71.0 ± 15.5 vs HS 66.5 ± 13.7, P = 0.09). CONCLUSIONS: When performed by 'technique-specific' surgeons, both LS and HS GJA in LRYGB may be performed safely with no significant differences in morbidity, reoperations, or EWL.