RESUMO
BACKGROUND: Pancreatic adenocarcinoma (PDAC) often impinges on the biliary tree and obstruction necessitates stent placement increasing the risk of surgical site infections (SSIs). We sought to explore the impact of neoadjuvant therapy on the biliary microbiome and SSI risk in patients undergoing resection. METHODS: A retrospective analysis was performed on 346 patients with PDAC who underwent resection at our institution from 2008 to 2021. Univariate and multivariate methods were utilized for analysis. RESULTS: Biliary stenting rates were similar between groups but resulted in increased bile culture positivity (97% vs. 15%, p < 0.001). Culture positivity did not differ between upfront resection or neoadjuvant chemotherapy (NAC) (77% vs. 80%, p = 0.60). NAC-alone versus neoadjuvant chemoradiotherapy did not impact biliary positivity (80% vs. 79%, p = 0.91), nor did 5-fluorouracil versus gemcitabine-based regimens (73% vs. 85%, p = 0.19). While biliary stenting increased incisional SSI risk (odds ratios [OR]: 3.87, p = 0.001), NAC did not (OR: 0.83, p = 0.54). Upfront resection, NAC, and chemoradiotherapy were not associated with biliary organism-specific changes or antibiotic resistance patterns. CONCLUSIONS: Biliary stenting is the greatest predictor for positive biliary cultures and SSIs in resected PDAC patients. Neither NAC nor radiotherapy impact bile culture positivity, speciation, rates, or antibiotic resistance patterns, and perioperative antibiotic prophylaxis should not differ.
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Adenocarcinoma , Sistema Biliar , Microbiota , Neoplasias Pancreáticas , Humanos , Neoplasias Pancreáticas/patologia , Terapia Neoadjuvante/métodos , Adenocarcinoma/patologia , Estudos Retrospectivos , Sistema Biliar/patologia , Neoplasias PancreáticasRESUMO
Rosacea is a chronic inflammatory skin condition characterized by facial flushing, erythema, telangiectasias, and papulopustular lesions. Treatment for rosacea includes limiting inciting factors and reducing inflammation with topical and oral therapies. Traditional therapies primarily focus on the papulopustular or background erythematotelangiectatic component of rosacea, leaving symptoms of flushing poorly controlled and profoundly impacting the quality of life of patients. Neuromodulators have been speculated to improve the flushing component of rosacea by reducing mast cell degranulation and the release of neuropeptides. However, its use for symptomatic relief in refractory flushing rosacea has been limited by side effects such as facial muscle weakness or paralysis. We present the use of strategic placement of high-dose neuromodulators for treatment-resistant rosacea. This approach has resulted in the gradual stabilization of symptoms, improved quality of life, and superior side effect profile. Silence C, Kourosh AS, Gilbert E. Placement of high-dose neurotoxins for treatment-resistant rosacea. J Drugs Dermatol. 2023;22(6):605-606. doi:10.36849/JDD.7237.
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Neurotoxinas , Rosácea , Humanos , Neurotoxinas/uso terapêutico , Qualidade de Vida , Rosácea/diagnóstico , Rosácea/tratamento farmacológico , Rosácea/patologia , Eritema/tratamento farmacológico , RuborRESUMO
BACKGROUND: Routine intensive care unit admission (ICUA) is commonplace following pancreatectomy, particularly pancreaticoduodenectomy. The value of this practice in avoiding failure-to-rescue is poorly studied. METHODS: We queried our institutional National Surgical Quality Improvement Project database for patients undergoing pancreatectomy from 2013 to 2020. Postoperative dispositions, ICU courses, and hospital cost data in United States Dollars (USD) were captured. Data were analyzed with multivariable logistic regression. RESULTS: Six-hundred-thirty-seven patients were identified; 404 (63%) underwent pancreaticoduodenectomy. Postoperatively, 398 (99%) pancreaticoduodenectomies and 110 (47%) distal pancreatectomies had ICUA; two-thirds (n = 318, 63%) did not require immediate postoperative ICU-level interventions at ICUA. Of these, 17 (5.3%) subsequently required ICU-level interventions during initial ICUA, most commonly antiarrhythmic infusion (n = 12). Thirty-day and 90-day mortality in patients requiring immediate ICU-level interventions was 5% (n = 10) and 8% (n = 16) versus 0.3% (n = 1) and 1.2% (n = 4) in those without, respectively. Hospital length of stay was significantly longer with initial ICU-level interventions (median 11 vs. 9 days, p < 0.001), as were total ICU costs (mean 8683 vs. 14611 USD, p < 0.001). CONCLUSION: At high-volume pancreas centers, patients without immediate postoperative ICU-level interventions are very low risk for failure-to-rescue. Ward admission with a low threshold for care escalation presents a significant opportunity for cost-savings and un-burdening ICUs.
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Pancreatectomia , Cirurgiões , Custos Hospitalares , Humanos , Unidades de Terapia Intensiva , PancreaticoduodenectomiaRESUMO
INTRODUCTION: Radical antegrade modular pancreatosplenectomy (RAMPS) was developed to improve R0 resections and lymph node harvests versus distal pancreatectomy (DP) in pancreatic adenocarcinoma (PDAC); relative complication rates are understudied. METHODS: Patients undergoing distal pancreas resections from 2006 to 2020 were identified from our institutional NSQIP database, grouped by resection method, and evaluated for the following outcomes: postoperative pancreatic fistula (POPF), clinically relevant POPF (crPOPF), incisional surgical site infection (iSSI), organ space SSI (osSSI), and Clavien-Dindo grade ≥ 3 (CD ≥ 3) complications using logistic regression. Patients were matched 1:1 based on disease risk score. RESULTS: Two-hundred-thirty-six and 117 patients underwent DP and RAMPS, respectively. POPF, crPOPF, CD ≥ 3 complications, iSSI, and osSSIs occurred in 105 (30%), 43 (12%), 74 (21%), 34 (10%) and 52 (15%) patients, respectively. Disease risk score matching yielded 89 similar patients per group. On multivariable analysis, patients undergoing RAMPS were not significantly more likely to experience POPF (OR 0.69, P = 0.26), crPOPF (OR 0.41, P = 0.72), CD ≥ 3 complication (OR 0.78, P = 0.44), iSSI (OR 0.58, P = 0.27), or osSSI (OR 0.93, P = 0.86). Of patients with PDAC (n = 108) mean nodal harvest were 14.8 (SD 11.30) and 19.4 (SD 7.19) nodes for patients undergoing DP and RAMPS, respectively (P = 0.01). Six patients (20%) undergoing DP had positive margins versus 12 (15%) undergoing RAMPS (P = 0.56). At a median follow-up of 17 months, there was no difference in locoregional recurrence-free survival (P = 0.32) or overall survival (P = 0.92) on Kaplan-Meier analysis. CONCLUSION: RAMPS does not result in increased complications compared to DP and routine use is encouraged in pancreatic malignancies.
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Adenocarcinoma , Neoplasias Pancreáticas , Humanos , Pancreatectomia/efeitos adversos , Pancreatectomia/métodos , Neoplasias Pancreáticas/patologia , Melhoria de Qualidade , Estudos Retrospectivos , Fatores de Risco , Esplenectomia/métodos , Neoplasias PancreáticasRESUMO
BACKGROUND: Portal venous reconstruction (PVR) is often needed during resection of hepatopancreato-biliary (HPB) malignancies. Primary repair (PR), autologous vein (AV), or cryopreserved cadaveric vein (CCV) are frequently utilized, however relative patency is not well studied. METHODS: All patients undergoing PVR between 2007-2019 at our center were identified. 3-year primary patency (PP), overall survival (OS), and survival-adjusted patency (SAP) were evaluated with Kaplan-Meier and Cox proportional hazards modeling. RESULTS: One-hundred-twenty patients were identified with a median follow-up of 11 months. PR, AV, and CCV reconstruction were used in 28 (23%), 35 (29%), and 57 (48%) patients, respectively, with two (7%), four (11%), and 29 (51%) thromboses, respectively. 3-year PP was greater for both primary repair (90%) and AV (83%) compared to CCV (33%, both p<0.001). On multivariable analysis, CCV had worse 3-year PP (HR 7.89, p=0.005) and SAP (HR 2.09, p=0.02) compared to PR; AV reconstruction had equivalent oncologic and patency-related outcomes to PR (p>0.4 for both comparisons). CONCLUSIONS: Primary patency for PR and AV reconstruction is superior to CCV for PVR during resection of HPB malignancies. AV conduit should be the preferred choice of reconstruction when PR is not achievable. Surgeons should only use CCV when factors preclude PR/AV reconstruction.
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Neoplasias Pancreáticas , Cadáver , Humanos , Neoplasias Pancreáticas/patologia , Veia Porta/patologia , Veia Porta/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Grau de Desobstrução VascularRESUMO
BACKGROUND: As medical therapy improves, splenectomy has been relegated to third- or fourth-line therapy for immune thrombocytopenic purpura (ITP) in many hematologic practices. However, these medications have well-known associated morbidity and changes in treatment algorithms may affect the timing and degree of response to splenectomy as well as complications in heavily treated ITP patients. MATERIALS AND METHODS: This is a retrospective study of consecutive patients who underwent ITP splenectomy from January 1994 to June 2017. Nonresponders after splenectomy and those with recurrent disease were compared to complete responders. RESULTS: The cohort included 84 patients. Median number of medications received before splenectomy was 3 (1-6). 14.3% of patients had a medication-related complication, including heart failure, adrenal insufficiency, diabetes mellitus, infection, and osteoporosis. After splenectomy, 83.5% had a complete response, 7.5% partial response, and 9% no response. Complete response was associated with response to steroids before surgery (P < 0.01). Among responders, 19% had recurrent disease, which was associated with lower platelet count at diagnosis (P < 0.01). Forty-four patients (52.0%) had nonelective splenectomies for persistent bleeding or dangerously low platelets despite maximal medical therapy. Ten patients had Clavien-Dindo grade II or higher surgical complications (11.9%). Seven of these complications were related to recurrent or refractory ITP. CONCLUSIONS: Many ITP patients have complications related to medication use, and 52.0% required nonelective splenectomy despite maximal medical therapy. Earlier splenectomy may avoid medication-related complications and may reduce the complications from splenectomy. Splenectomy remains an effective and safe treatment for ITP.
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Púrpura Trombocitopênica Idiopática/cirurgia , Esplenectomia/métodos , Corticosteroides/uso terapêutico , Adulto , Idoso , Feminino , Humanos , Laparoscopia , Masculino , Pessoa de Meia-Idade , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Estudos Retrospectivos , Esplenectomia/efeitos adversosRESUMO
BACKGROUND: We sought to identify patterns of care for patients with appendiceal cancer and identify clinical factors associated with patient selection for multimodality treatment, including cytoreductive surgery and perioperative intraperitoneal chemotherapy (CRS/PIC). MATERIALS AND METHODS: National Cancer Database (NCDB) data from 2004 to 2014 of all diagnoses of appendiceal cancers were examined. We examined treatment modalities, as well as demographic, tumor-specific, and survival data. A multivariate logistic regression analysis was performed to determine the patient cohort most likely to receive CRS/PIC. Kaplan-Meier was used to estimate survival for all treatment groups. Significance was evaluated at P ≤ 0.05. RESULTS: We analyzed data on 18,055 patients. Nine thousand nine hundred ninety-two (55.3%) were treated with surgery only, 5848 (32.4%) received surgery and systemic chemotherapy, 1393 (7.71%) received CRS/PIC, 520 (2.88%) received chemotherapy alone, and 302 (1.67%) received neither surgery nor chemotherapy. Significant predictors of receiving CRS/PIC included male sex (OR 1.33, 95% CI: 1.11-1.59), white race (OR 2.00, 95% CI 1.40-2.86), non-Hispanic ethnicity (OR 1.92, 95% CI 1.21-3.05), private insurance (OR 1.52, 95% CI 1.26-1.84), and well-differentiated tumors (OR 4.25, CI: 3.39-5.32) (P < 0.05). Treatment with CRS/PIC was associated with a higher 5-year survival for mucinous malignancies, when compared to surgery alone (65.6% versus 62.4%, P < 0.01). Treatment with CRS/PIC was also associated with higher 5-year survival for well-differentiated malignancies, when compared to all other treatment modalities (74.9% versus 65.4%, P < 0.01). CONCLUSIONS: Patients were more likely to undergo CRS/PIC if they were male, white, privately insured, and with well-differentiated tumors. CRS/PIC was associated with improved survival in patients with mucinous and low-grade tumors.
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Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias do Apêndice/terapia , Quimioterapia do Câncer por Perfusão Regional/estatística & dados numéricos , Procedimentos Cirúrgicos de Citorredução/estatística & dados numéricos , Hipertermia Induzida/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias do Apêndice/mortalidade , Neoplasias do Apêndice/patologia , Quimioterapia Adjuvante/métodos , Quimioterapia Adjuvante/estatística & dados numéricos , Quimioterapia do Câncer por Perfusão Regional/métodos , Bases de Dados Factuais/estatística & dados numéricos , Feminino , Humanos , Hipertermia Induzida/métodos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante/métodos , Terapia Neoadjuvante/estatística & dados numéricos , Estudos Retrospectivos , Fatores Sexuais , Resultado do Tratamento , Estados Unidos/epidemiologiaRESUMO
BACKGROUND: The misdiagnosis of appendiceal cancer as inflammatory appendicitis is becoming of greater clinical concern because of the rise of nonoperative management especially in the elder population. To quantify this rate of misdiagnosis, we retrospectively reviewed SEER-Medicare data. METHODS: The SEER-Medicare database was reviewed from 2000 to 2014. We identified patients older than 65 years old who were diagnosed with appendiceal cancer and then cross-referenced them for a diagnosis of inflammatory appendicitis. Demographic data and oncologic stage were collected. RESULTS: Our results showed that 28.6% of appendiceal cancer patients received an incorrect initial diagnosis of inflammatory appendicitis. Patients older than 75 years of age were more likely to be misdiagnosed than those between ages 65 and 75 (risk ratio [RR]: 0.81; 95% confidence interval: 0.70-0.93; P = .003). We found that 42% of patients within the misdiagnosis group presented with an earlier stage of disease (stage 1 or 2) compared to 26% of those primarily diagnosed with appendiceal cancer (P < .001). CONCLUSION: A significant proportion of patients older than 65 years old with appendiceal cancer were initially misdiagnosed with acute appendicitis. We suggest caution when considering a nonoperative approach for appendicitis in the elderly and follow-up imaging or an interval appendectomy should be part of the treatment plan.
Assuntos
Neoplasias do Apêndice/diagnóstico , Apendicite/diagnóstico , Idoso , Apendicectomia , Neoplasias do Apêndice/epidemiologia , Neoplasias do Apêndice/cirurgia , Apendicite/epidemiologia , Apendicite/cirurgia , Bases de Dados Factuais , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Masculino , Medicare , Prognóstico , Estudos Retrospectivos , Estados Unidos/epidemiologiaRESUMO
BACKGROUND: Vagal nerve blockade with the vBloc device (ReShape Lifesciences, St. Paul, MN) has been shown to provide durable 2-year weight loss in patients with moderate obesity. These devices may require removal. We present a series of patients and report our technique for laparoscopic removal of this device. METHODS: From December 2009 to December 2016, the medical records of patients who underwent laparoscopic explantation of a vagal blocking device at our institution were retrospectively reviewed. All patients initially underwent device placement as part of a multi-center, randomized, controlled trial. The device leads were removed with the application of firm traction in order to safely dissect them away from the stomach and esophagus as the body tended to form a fibrotic capsule surrounding the leads. Operative details, length of stay, 30-day post-operative complications, demographics and reasons for device removal were reported. RESULTS: Thirty patients were identified. Median age was 54 (37-65) years. Average operative time was 227.63 (± 100.21) min. Median time from implantation to removal was 41 (11-96) months. Removal reasons included device malfunction (7 patients, 23.3%), pain at the neuroregulator site (5 patients, 16.7%), retrosternal or epigastric pain (11 patients, 36.7%), weight regain or dissatisfaction with weight loss (15 patients, 50%), and severe nausea (2 patients, 6.7%). Two patients (6.7%) had Clavien-Dindo grade II complications following explantation. Thirteen patients (43.3%) had dense adhesions noted at the time of operation. Seroma formation at the neuroregulator site was the most common complication (7 patients, 23.3%). CONCLUSION: The vagal nerve blocking device can be safely removed laparoscopically with a low 30-day complication rate. Surgeons should be familiar with the details of the device appearance, the typical lead location, and should anticipate dense adhesions surrounding the leads. In addition, experience operating in the region of the gastroesophageal junction is imperative.
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Bloqueio Nervoso/instrumentação , Obesidade Mórbida/cirurgia , Nervo Vago , Adulto , Idoso , Remoção de Dispositivo , Feminino , Humanos , Laparoscopia , Masculino , Prontuários Médicos , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Resultado do Tratamento , Redução de Peso/fisiologiaRESUMO
The major facilitator superfamily (MFS) effluxers are prominent mediators of antimicrobial resistance. The biochemical characterization of MFS proteins is hindered by their complex membrane environment that makes in vitro biochemical analysis challenging. Since the physicochemical properties of proteins drive the fitness of an organism, we posed the question of whether we could reverse that relationship and derive meaningful biochemical parameters for a single protein simply from fitness changes it confers under varying strengths of selection. Here, we present a physiological model that uses cellular fitness as a proxy to predict the biochemical properties of the MFS tetracycline efflux pump, TetB, and a family of single amino acid variants. We determined two lumped biochemical parameters roughly describing Km and Vmax for TetB and variants. Including in vivo protein levels into our model allowed for more specified prediction of pump parameters relating to substrate binding affinity and pumping efficiency for TetB and variants. We further demonstrated the general utility of our model by solely using fitness to assay a library of tet(B) variants and estimate their biochemical properties.
Assuntos
Proteínas de Membrana Transportadoras/metabolismo , Família Multigênica , Proteínas de Bactérias/química , Proteínas de Bactérias/metabolismo , Cinética , Proteínas de Membrana Transportadoras/química , Modelos BiológicosRESUMO
Herpes Labialis results from reactivation of latent herpes simplex virus (HSV-1 or HSV-2) harbored in the trigeminal ganglion during times of psychological stress, cutaneous injury or photo exposure. Following reactivation, the virus is anterogradely transported through axonal termini to the skin where the virus is released and replicates causing a clinical outbreak. Botulinum neurotoxin A (BoNTA) is known to inhibit presynaptic neuropeptide and neurotransmitter release. Whether it has the capacity to interfere with viral shedding and delivery into the skin remains unclear. We were interested in determining whether BoNTA could serve as a potential therapeutic or prophylactic treatment approach for frequent and severe HSV recurrences. We describe a clinical case report in which a patient successfully maintained a sustained absence of HSV outbreaks in regions where BoNTA was intradermally administered. BoNTA may offer a novel therapeutic approach for preventing recurrent HSV disease. J Drugs Dermatol. 2018;17(10):1127-1129.
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Toxinas Botulínicas Tipo A/uso terapêutico , Herpes Labial/tratamento farmacológico , Herpesvirus Humano 1 , Doenças Labiais/tratamento farmacológico , Neurotoxinas/uso terapêutico , Adulto , Toxinas Botulínicas Tipo A/administração & dosagem , Feminino , Herpes Labial/patologia , Herpes Labial/virologia , Humanos , Injeções Intradérmicas , Doenças Labiais/patologia , Doenças Labiais/virologia , Neurotoxinas/administração & dosagem , Recidiva , Resultado do TratamentoRESUMO
Appendiceal neoplasms are identified in 0.9 to 1.4% of appendiceal specimens, and the incidence is increasing. It has long been professed that neuroendocrine tumors (formerly carcinoids) are the most common neoplastic process of the appendix; recent data, however, has suggested a shift in epidemiology. Our intent is to distill the complex into an algorithm, and, in doing so, enable the surgeon to seamlessly maneuver through operative decisions, treatment strategies, and patient counseling. The algorithm for evaluation and treatment is complex, often starts from the nonspecific presenting complaint of appendicitis, and relies heavily on often subtle histopathologic differences.
RESUMO
BACKGROUND: Hyaluronic acid fillers are frequently used for maintenance of youthful appearance of perioral and lip region. The introduction of Juvederm® Volbella™ with lidocaine and Juvederm® Volift™ with lidocaine to the European aesthetic market in 2012 increased the options of fillers to be used and it appears to be a new solution to improve this area. OBJECTIVE: the aim of this study is to demonstrate how to correct this area using two new dermal fillers: Juvederm® Volift™ with lidocaine, and Juvederm® Volbella™ with lidocaine, based on the experience of two Italian phycians. MATERIAL AND METHODS: 510 patients were enrolled, 195 were treated with Juvederm® Volbella™ with Lidocaine, 160 with Juvederm® Volift™ with lidocaine and 150 with both dermal fillers. Patients were photographed before and immediately after the treatment. RESULTS: All patients were extremely satisfied with their treatments. There were no immediate or delayed complications with either of the dermal fillers when used alone, or in combination. CONCLUSION: The dermal filler portfolio in Europe is among the largest and most varied available. ( 5 ) We propose here two new 15mg/ml and 17.5mg/ml hyaluronic acid fillers that utilize Vycross™ technology, that are suitable for lip and perioral region. According to the severity of the wrinkles and to the lip augmentation that we want to obtain we can select either one filler or another.
Assuntos
Preenchedores Dérmicos/uso terapêutico , Lábio , Sulco Nasogeniano , Rejuvenescimento , Adulto , Anestésicos Locais , Quimioterapia Combinada , Feminino , Humanos , Itália , Lidocaína , Pessoa de Meia-Idade , Satisfação do Paciente , FotografaçãoRESUMO
BotulinumtoxinA (BoNT-A) is now widely established for the main approved indication of reducing glabellar lines, and is also widely used off-label to improve the appearance of wrinkles and lines in other parts of the face. The number of aesthetic procedures continues to increase as the patient population becomes more diverse, in particular with increasing numbers of people of color and men. Further developments in treatment may continue to expand the audience for BoNT-A by making procedures more comfortable and by delivering a more natural, less static appearance. These may be achieved through use of combinations of BoNT-A with other aesthetic procedures, tailoring the dose of toxin to the patient's muscle mass or by using novel injection and application techniques. Beyond amelioration of facial lines, encouraging results have been seen with the use of BoNT-A to improve the appearance of hypertrophic and keloid scars and even to prevent them. Studies have been conducted with scars in various parts of the body and further research is ongoing. Dermatological and other medical uses for BoNT-A are also active areas of research. Injections of BoNT-A have been shown to reduce signs and symptoms of acne, rosacea, and psoriasis, to reduce neuromuscular pain, and to bring about significant improvements in a number of rare diseases that are caused or exacerbated by hyperhidrosis. This paper reviews these new uses for BoNT-A, looking at the rationale for their use and discussing the results of published case studies and clinical trials. These areas have shown great promise to date, but more and larger clinical studies will be required before these treatments become a clinical reality. To this end details are also provided of clinical trials currently listed in the main clinical trials database to highlight research areas of particular interest.
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Toxinas Botulínicas Tipo A/uso terapêutico , Técnicas Cosméticas , Músculos Faciais/efeitos dos fármacos , Fármacos Neuromusculares/uso terapêutico , Envelhecimento da Pele/efeitos dos fármacos , Cicatrização/efeitos dos fármacos , Acne Vulgar/tratamento farmacológico , Toxinas Botulínicas Tipo A/administração & dosagem , Cicatriz/tratamento farmacológico , Ensaios Clínicos como Assunto , Terapia Combinada , Preenchedores Dérmicos/administração & dosagem , Preenchedores Dérmicos/uso terapêutico , Composição de Medicamentos , Face , Humanos , Hiperidrose/tratamento farmacológico , Injeções Intradérmicas , Injeções Intramusculares , Terapia a Laser , Fármacos Neuromusculares/administração & dosagem , Uso Off-Label , Dor/tratamento farmacológico , Medicina de Precisão , Psoríase/tratamento farmacológico , Doenças Raras/tratamento farmacológico , Rosácea/tratamento farmacológicoRESUMO
Leucine, a branched-chain amino acid (BCAA), has been shown to stimulate muscle protein synthesis, and thus has been proposed to prevent age-related muscle atrophy (sarcopenia). Therefore, leucine supplementation may have potential benefits in elderly populations to preserve muscle mass. The tolerable upper intake level (UL) for leucine intake in young men has recently been determined to be 500 mg kg(-1) day(-1), and increases in blood ammonia concentrations were seen at intake levels above 500 mg kg(-1) day(-1); the UL for leucine in elderly is unknown. The objective of the current study was to determine the safety of leucine supplementation in healthy elderly men. Six healthy elderly men (72.2 ± 3.5 years) received graded stepwise increases in leucine intakes ranging from 50 to 750 mg kg(-1) day(-1), on eight separate study days. Plasma and urinary biochemical variables, including blood ammonia, and an oral primed-continuous protocol of L-1-(13)C-Leucine was performed. Blood ammonia concentrations above normal values (35 µmol/L) were observed at leucine intakes >550 mg kg(-1) day(-1). Leucine oxidation measured as a F(13)CO2 (rate of label tracer oxidation) increased with increasing leucine intakes and started to plateau after 450 mg kg(-1) day(-1). Two-phased linear regression analysis of the F(13)CO2 data revealed a breakpoint of 431 mg kg(-1) day(-1) (R (2) = 0.73), suggesting that the upper limit to oxidize leucine was reached at that point. Taking the data together the upper limit for leucine intake in healthy elderly could be set similar to young men at 500 mg kg(-1) day(-1) or ~35 g/day for an individual weighing 70 kg.
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Amônia , Suplementos Nutricionais , Leucina , Músculo Esquelético/metabolismo , Idoso , Amônia/sangue , Amônia/urina , Humanos , Leucina/administração & dosagem , Leucina/efeitos adversos , Leucina/farmacocinética , MasculinoRESUMO
BACKGROUND: Bilateral laparoscopic adrenalectomy (BLA) is an effective therapy for the management of persistent hypercortisolism in patients after failed transphenoidal pituitary tumor resection for Cushing's disease. Extracortical adrenal tissue has been identified as a source of persistent hypercortisolism and, if not resected along with both adrenal glands, may lead to treatment failure. We report a reliable and reproducible technique called the "psoas sign" for BLA in patients with Cushing's disease which reduces the likelihood of retained extra-adrenal cortical rests and may reduce intraoperative complications. METHODS: A 16-year retrospective review of all consecutive patients who underwent transabdominal BLA at a single tertiary care center was performed. All patients underwent BLA utilizing the psoas sign technique and all procedures were performed replicating these predetermined surgical steps: (1) Identification of the inferior pole of the gland. (2) Identification of the inferior aspect of the adreno-caval groove on the right or the adrenal vein/renal vein confluence on the left. (3) Division of the adrenal vein. (4) Dissection and removal of the adrenal gland with clearance of all retroperitoneal fat overlying the psoas muscle. RESULTS: Between October 1996 and December 2012, 92 patients underwent BLA for refractory Cushing's disease. Patients were predominantly female (90 %) with a median age of 40 years (17-71). There were 3 intraoperative complications (3.2 %), 2 conversions (2.2 %), and 1 death (1.09 %). Four patients were identified as having extracortical rests of adrenal tissue within the retroperitoneal fat (4.3 %). Mean operative time was 272 min (±79.25, n = 68) and median estimated blood loss was 50 mL (10-800 mL). CONCLUSIONS: The psoas sign technique provides a clear view of the adrenal fossa and facilitates careful dissection of the anatomic planes around the adrenal gland. This technique is feasible, reproducible and in our experience allows for safe removal of both adrenal glands and all surrounding extracortical adrenal tissue.
Assuntos
Glândulas Suprarrenais/cirurgia , Adrenalectomia/métodos , Síndrome de Cushing/cirurgia , Laparoscopia/métodos , Adolescente , Adulto , Idoso , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Hipersecreção Hipofisária de ACTH/cirurgia , Reprodutibilidade dos Testes , Estudos Retrospectivos , Adulto JovemRESUMO
BACKGROUND: There are numerous dermal fillers available to injectors in the US and Europe for the correction of age-related volume loss in the midface and perioral regions. Product availability differs between these two aesthetic markets due to US Food and Drug Administration (FDA) regulatory requirements. The purpose of this study is to discuss differences in filler selection by two practitioners in the US and Europe based upon both stylistic approach and filler availability in each market. OBJECTIVE: To analyse and discuss the approach to midface as well as lip and perioral volume restoration by two independent dermatologists working in the US and Italy. METHODS: Seven patients were selected for discussion and divided into two groups: 1) those requiring midface volumization and 2) those undergoing perioral or lip volume replacement. Patients in the midface group were injected with Juvéderm Voluma® XC, Juvéderm® Volift® with lidocaine, Restylane- L®, Perlane-L® or Radiesse®. Patients in the perioral and/or lip group were injected with Juvéderm® Volbella™, with lidocaine, or Belotero Balance™. Patients were photographed before and immediately after injection to evaluate aesthetic outcomes. In each case, filler selection was based upon patient characteristics, anatomical considerations and inherent filler properties. RESULTS: All patients were extremely satisfied with their treatments. There were no significant immediate or delayed complications following treatment with any of the dermal fillers used. CONCLUSIONS: Volume restoration in the midface and perioral or lip region can be effectively achieved using a variety of dermal fillers. The dermal filler portfolio available in Europe is exponentially larger than that in the US. Product selection in either market is ultimately the result of the physician's experience injecting each dermal filler, as well as his or her personal preferences.
Assuntos
Técnicas Cosméticas , Fármacos Dermatológicos/uso terapêutico , Face , Boca , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Ácido Hialurônico/administração & dosagem , Ácido Hialurônico/análogos & derivados , Ácido Hialurônico/uso terapêutico , Itália , Lidocaína/uso terapêutico , Lábio , Pessoa de Meia-Idade , Agulhas , Satisfação do Paciente , Rejuvenescimento , Envelhecimento da Pele , Estados UnidosRESUMO
Use of botulinum neurotoxin A (BoNTA) for treating inflammatory skin disease is an underexplored area in medical dermatology. Preclinical mouse studies have demonstrated efficacy of abobotulinumtoxinA in improving psoriasiform skin inflammation. We describe sustained local clearance of a psoriasis plaque in a patient following a single off-label injection of intradermal abobotulinumtoxinA. BoNTA may offer a novel therapeutic approach for treating recalcitrant plaque psoriasis. Case reports and anecdotal evidence suggests that onabotulinumtoxinA may be useful for treating inverse psoriasis.1,2 We previously reported an improvement in skin phenotype in a preclinical mouse model following a single intradermal injection of abobotulinumtoxinA.3 Here we present a patient case report demonstrating efficacy of abobotulinumtoxinA in reversing plaque psoriasis.
Assuntos
Toxinas Botulínicas Tipo A/administração & dosagem , Fármacos Neuromusculares/administração & dosagem , Psoríase/tratamento farmacológico , Idoso , Feminino , Humanos , Injeções Intradérmicas , Uso Off-Label , Psoríase/patologia , Resultado do TratamentoRESUMO
BACKGROUND: Umbilical hernias are highly prevalent in patients with liver dysfunction, ascites, and cirrhosis. This patient population carries significant perioperative risk and poses significant challenges because of their comorbidities. Literature suggests that elective repair of umbilical hernias can lead to better outcomes by reducing the risk of ascitic leak and compromised bowel. Medical optimization followed by open repair has been the standard approach; however, little is known about whether a laparoscopic approach may be equivalent or superior. METHODS: We retrospectively analyzed the American College of Surgeons National Surgical Quality Improvement Program database from 2015 to 2021 for umbilical hernia repairs in patients with liver dysfunction, as defined per the aspartate aminotransferase to platelet ratio index ≥1. We compare operative outcomes for open and laparoscopic repair, adjusting for confounders using propensity score matching and stratifying by case acuity. RESULTS: We identified 1,983 patients with liver dysfunction who underwent umbilical hernia repair. Most patients (86%) were operated via an open approach rather than laparoscopy. Operative outcomes between the laparoscopy and open group were comparable regarding mortality and serious complications. Notably, length of stay and need for blood transfusion intraoperatively or postoperatively were reduced in the laparoscopy group (P < .001). These findings remained significant after subgroup analysis with propensity matching stratified by elective and emergency case types. CONCLUSION: Minimally invasive umbilical hernia repair in liver dysfunction is as safe and, in some metrics, superior to open technique. We found no difference in mortality although hospital stays and the need for blood transfusions were lower in the laparoscopy groups. Prospective randomized trials are needed to validate these findings further.
Assuntos
Hérnia Umbilical , Herniorrafia , Laparoscopia , Pontuação de Propensão , Humanos , Hérnia Umbilical/cirurgia , Feminino , Masculino , Estudos Retrospectivos , Herniorrafia/métodos , Herniorrafia/efeitos adversos , Pessoa de Meia-Idade , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Idoso , Hepatopatias/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Resultado do Tratamento , Adulto , Tempo de Internação/estatística & dados numéricosRESUMO
Glucagonomas are slow-growing, rare pancreatic neuroendocrine tumors. They may present with paraneoplastic phenomena known together as the "glucagonoma syndrome." A hallmark sign of this syndrome is a rash known as necrolytic migratory erythema (NME). In this paper, the authors describe a patient with NME and other features of the glucagonoma syndrome. The diagnosis of this rare tumor requires an elevated serum glucagon level and imaging confirming a pancreatic tumor. Surgical and medical treatment options are reviewed. When detected early, a glucagonoma is surgically curable. It is therefore imperative that clinicians recognize the glucagonoma syndrome in order to make an accurate diagnosis and refer for treatment.