To the editor:We read with great interest the article entitled "Comparative study of the effects of terlipressin versus splenectomy on liver regeneration after partial hepatectomy in rats" by Ulmer et al.[1].The aim o...
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To the editor:We read with great interest the article entitled "Comparative study of the effects of terlipressin versus splenectomy on liver regeneration after partial hepatectomy in rats" by Ulmer et al.[1].The aim of this study was to analyse the impact of terlipressin ver-
Interventional electrophysiology represents a relatively recent subspecialty within the field of *** the past half-century,there has been significant advan-cement in the development and implementation of innovative ab...
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Interventional electrophysiology represents a relatively recent subspecialty within the field of *** the past half-century,there has been significant advan-cement in the development and implementation of innovative ablation treatments and ***,the treatment of arrhythmias continues to be *** arrhythmias,such as ventricular tachycardia and atrial fibrillation,pose significant challenges in terms of therapeutic efficacy,whether through interventional procedures or the administration of antiarrhythmic ***-logists are engaged in ongoing research to explore innovative methodologies,such as genome editing,with the purpose of effectively managing arrhythmias and meeting the growing needs of patients afflicted with rhythm *** field of genome editing has significant promise and has the potential to serve as a highly effective personalized therapy for rhythm disorders in ***,several ethical issues must be considered.
Myocardial infarction is the most common cause of congestive heart failure. Novel strategies such as directly reprogramming cardiac fibroblasts into cardiomyocytes are an exciting area of investigation for repair of i...
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Myocardial infarction is the most common cause of congestive heart failure. Novel strategies such as directly reprogramming cardiac fibroblasts into cardiomyocytes are an exciting area of investigation for repair of injured myocardial tissue. The ultimate goal is to rebuild functional myocardium by transplanting exogenous stem cells or by activating native stem cells to induce endogenous repair. Cell-based myocardial restoration, however, has not penetrated broad clinical practice yet. Plateletrich plasma, an autologous fractionation of whole blood containing high concentrations of growth factors, has been shown to safely and effectively enhance healing and angiogenesis primarily by reparative cell signaling. In this review, we collected all recent advances in novel therapies as well as experimental evidence demonstrating the role of platelet-rich plasma in ischemic heart disease, focusing on aspects that might be important for future successful clinical application.
Ventricular tachycardia(VT) is a crucial cause of sudden cardiac death(SCD) and a primary cause of mortality and morbidity in patients with structural cardiac disease. VT includes clinical disorders varying from benig...
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Ventricular tachycardia(VT) is a crucial cause of sudden cardiac death(SCD) and a primary cause of mortality and morbidity in patients with structural cardiac disease. VT includes clinical disorders varying from benign to lifethreatening. Most life-threatening episodes are correlated with coronary artery disease, but the risk of SCD varies in certain populations, with various underlying heart conditions, specific family history, and genetic variants. The targets of VT management are symptom alleviation, improved quality of life, reduced implantable cardioverter defibrillator shocks, prevention of reduction of left ventricular function, reduced risk of SCD, and improved overall survival. Antiarrhythmic drug therapy and endocardial catheter ablation remains the cornerstone of guideline-endorsed VT treatment strategies in patients with structural cardiac abnormalities. Novel strategies such as epicardial ablation, surgical cryoablation, transcoronary alcohol ablation, pre-procedural imaging, and stereotactic ablative radiotherapy are an appealing area of res-earch. In this review, we gathered all recent advances in innovative therapies as well as experimental evidence focusing on different aspects of VT treatment that could be significant for future favorable clinical applications.
Although colonoscopy has been proven effective in reducing the incidence of colorectal cancer through the detection and removal of precancerous lesions, it remains an imperfect examination, as it can fail in detecting...
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Although colonoscopy has been proven effective in reducing the incidence of colorectal cancer through the detection and removal of precancerous lesions, it remains an imperfect examination, as it can fail in detecting up to almost one fourth of existing adenomas. Among reasons accounting for such failures, is the inability to meticulously visualize the colonic mucosa located either proximal to haustral folds or anatomic curves, including the hepatic and splenic flexures. In order to overcome these limitations, various colonoscope attachments aiming to improve mucosal visualization have been developed. All of them-transparent cap, Endocuff, Endocuff Vision and Endorings-are simply mounted onto the distal tip of the scope. In this review article, we introduce the rationale of their development, present their mode of action and discuss in detail the effect of their implementation in the detection of lesions during colonoscopy.
Esophageal conduit ischaemia and necrosis is an uncommon but devastating complication of esophagectomy and remains one of the most challenging issues in surgical practice. The incidence, time interval to develop sympt...
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Esophageal conduit ischaemia and necrosis is an uncommon but devastating complication of esophagectomy and remains one of the most challenging issues in surgical practice. The incidence, time interval to develop symptoms, and clinical presentation are highly variable with no predictable pattern. Evidence comes from case reports and case series rather than randomized controlled *** describe the issues surrounding conduit necrosis affecting the stomach,jejunum and colon as an esophageal replacement and the advantages,disadvantages and challenges of each type of reconstruction. Diagnosis is challenging for the most experienced surgeon. Upper gastrointestinal endoscopy and computed tomography thorax with both oral and intravenous contrast is the gold standard. Management, either conservative or interventional is also a difficult decision. Management options include conservative treatment and more aggressive treatments such as stent insertion, surgical debridement and repair of the esophagus using jejunum, colon or a musculocutaneous flap. In spite of recent advances in surgical techniques, there is no reliable strategy to manage esophageal conduit necrosis. Our review covers the pathophysiology and clinical significance of esophageal necrosis while highlighting current techniques of prevention, diagnosis and treatment of this life-threatening condition.
The liver is a solid organ with a wide variety of primary benign or malignant tumors as well as metastatic *** resection of these tumors remains the only curative *** limitations,however,do not allow the performance o...
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The liver is a solid organ with a wide variety of primary benign or malignant tumors as well as metastatic *** resection of these tumors remains the only curative *** limitations,however,do not allow the performance of these *** review evaluates the indications and limitations regarding these extended hepatic resections,as well as describing all the manipulations that increase the candidates for such operations.A thorough review of the literature was performed in order to define indications for extended hepatectomy,as well as to present all methods that contribute to increasing the volume of the future remnant *** role of portal vein ligation,portal vein embolization,two-stage hepatectomy,and in situ liver transection are evaluated in the setting of indications and *** hepatectomies are a necessity due to oncological *** methods developed in order to increase the volume of the remnant liver are safe and *** situ liver transection is a novel and revolutionary two-step procedure for extended hepatic *** clinical studies are required to estimate long-term results and the oncological basis of this technique.
Robot-assisted surgery is the gold standard of treatment in many fields of urology. In this systematic review, we aim to reportits usage in andrology and to evaluate any advantages. A systematic search of the PubMed a...
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Robot-assisted surgery is the gold standard of treatment in many fields of urology. In this systematic review, we aim to reportits usage in andrology and to evaluate any advantages. A systematic search of the PubMed and Cochrane Library databases wasconducted to identify articles referring to robotic-assisted microsurgery in andrology. The search strategy was in line with thePreferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and the Cochrane Handbook. Thearticles were then reviewed by two authors. A qualitative analysis of the articles that met the inclusion criteria was ***-one articles that met the inclusion criteria were reviewed. The first results for robot-assisted vasovasostomy (RAVV) areencouraging as excellent patency rates, short operative times, and learning curves were achieved. Interestingly, patency rates weregreater in some case series for RAVV than for microsurgical vasovasostomy, with a statistically significant difference. In addition,robot has been shown to be of great use in bypassing fibrotic changes in cases of iatrogenic vasal injuries, difficulties encounteredwith traditional microsurgery. In addition, the feasibility of robot-assisted microsurgery has been proven for varicocelectomy andmicrosurgical denervation of the spermatic cord, with acceptable improvement in sperm parameters and pain, respectively. Thecurrent evidence suggests that there are potential advantages of the use of robots in andrology. However, for robotic surgery tobecome incorporated into the daily use of the andrologists, large, multicenter randomized trials are needed. As robotics systemsare becoming standard in urology practice, it is reasonable for one to believe that they will also find their place in andrology.
Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) share a common route of transmission so that about one third of HIV infected individuals show HCV coinfection. Highly active antiretroviral therapy has of...
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Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) share a common route of transmission so that about one third of HIV infected individuals show HCV coinfection. Highly active antiretroviral therapy has offered a longer and better life to infected patients. While has removed AIDS-related diseases from the list of most common causes of death their place has been taken by complications of HCV infection, such as cirrhosis, end stage liver disease and hepatocellular carcinoma (HCC). HIV/HCV co-infection requires complex management, especially when HCC is present. Co-infected patients with HCC undergo the same therapeutic protocol as their mono-infected counterparts, but special issues such as interaction between regimens, withdrawal of therapy and choice of immunosuppressive agents, demand a careful approach by specialists. All these issues are analyzed in this minireview.
Esophageal cancer (EC) presents a high mortality rate, mainly due to its aggressive nature. Squamous cell carcinoma is the most common histological type world-wide, though, a continuous increase in esophageal adenocar...
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Esophageal cancer (EC) presents a high mortality rate, mainly due to its aggressive nature. Squamous cell carcinoma is the most common histological type world-wide, though, a continuous increase in esophageal adenocarcinomas has been noted in the past decades. Common risk factors associated with EC include smoking, alcohol consumption, gastroesophageal reflux disease, Barrett's esophagus and obesity. In an effort to overcome chemotherapy resistance in oncology, it was discovered that histone acetylation/deacetylation equilibrium is altered in carcinogenesis, leading to changes in chromatin structure and altering expression of genes important in the cell cycle, differentiation and apoptosis. Based on this knowledge, histone acetylation was addressed as a potential novel chemotherapy drug target to repress cancer cell proliferation. There are four classes of histone deacetylases (HDACs) inhibitors with a variety of different mechanisms of actions that render them possible anticancer drugs. They arrest the cell cycle, inhibit differentiation and angiogenesis and induce apoptosis. They do not necessarily act on histone proteins, since they can also exert indirect anti-cancer effects, by modifying various cellular *** addition,HDACs have also been associated with increased chemotherapy *** on the literature,HDACs have been associated with EC,with surveys revealing that increased expression of certain HDACs correlates with advanced TNM stages,tumor grade,metastatic potential and decreased 5-year overall and disease-free *** aim of this survey is to elucidate the molecular identity and mechanism of action of HDAC inhibitors as well as verify their potential utility as anti-cancer agents in esophageal cancer.
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