RESUMO
Myeloproliferative neoplasms (MPNs), namely, polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF), are clonal stem cell disorders defined by an excessive production of functionally mature and terminally differentiated myeloid cells. MPNs can transform into secondary acute myeloid leukemia (sAML/blast phase MPN) and are linked to alterations in the redox balance, i.e., elevated concentrations of reactive oxygen species and markers of oxidative stress (OS), and changes in antioxidant systems. We evaluated OS in 117 chronic phase MPNs and 21 sAML cases versus controls by measuring total antioxidant capacity (TAC) and 8-hydroxy-2'-deoxy-guanosine (8-OHdG) concentrations. TAC was higher in MPNs than controls (p = 0.03), particularly in ET (p = 0.04) and PMF (p = 0.01). MPL W515L-positive MPNs had higher TAC than controls (p = 0.002) and triple-negative MPNs (p = 0.01). PMF patients who had treatment expressed lower TAC than therapy-free subjects (p = 0.03). 8-OHdG concentrations were similar between controls and MPNs, controls and sAML, and MPNs and sAML. We noted associations between TAC and MPNs (OR = 1.82; p = 0.05), i.e., ET (OR = 2.36; p = 0.03) and PMF (OR = 2.11; p = 0.03), but not sAML. 8-OHdG concentrations were not associated with MPNs (OR = 1.73; p = 0.62) or sAML (OR = 1.89; p = 0.49). In conclusion, we detected redox imbalances in MPNs based on disease subtype, driver mutations, and treatment history.
Assuntos
8-Hidroxi-2'-Desoxiguanosina , Antioxidantes , Transtornos Mieloproliferativos , Humanos , Masculino , Feminino , 8-Hidroxi-2'-Desoxiguanosina/metabolismo , Pessoa de Meia-Idade , Idoso , Transtornos Mieloproliferativos/genética , Transtornos Mieloproliferativos/metabolismo , Transtornos Mieloproliferativos/patologia , Antioxidantes/metabolismo , Adulto , Estresse Oxidativo , Idoso de 80 Anos ou mais , Crise Blástica/metabolismo , Crise Blástica/genética , Crise Blástica/patologia , Proteínas de Fusão bcr-abl/genética , Proteínas de Fusão bcr-abl/metabolismo , Mielofibrose Primária/genética , Mielofibrose Primária/metabolismo , Mielofibrose Primária/patologiaRESUMO
Several cases reported in the literature have confirmed the link between pulmonary aspergillosis and various malignant diseases. Furthermore, it has been observed that the correlation between carcinoid tumor and lung adenocarcinoma is quite uncommon. The etiopathogenic mechanisms underlying these correlations remain poorly defined. We present the case of a patient with three of these diseases: a lung adenocarcinoma with a lepidic pattern, a typical carcinoid, and pulmonary aspergillosis. An additional noteworthy aspect of this case pertains to the timely detection of both lung malignancies. Thus, the necessity for further investigation to ascertain the pathogenic connection among the three diseases is underscored. The ultimate objective is to enhance the prognosis of individuals diagnosed with lung cancer, which is a prevailing malignant disease on a global scale.
Assuntos
Tumor Carcinoide , Neoplasias Pulmonares , Aspergilose Pulmonar , Humanos , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico , Aspergilose Pulmonar/complicações , Aspergilose Pulmonar/diagnóstico , Tumor Carcinoide/complicações , Adenocarcinoma/complicações , Masculino , Adenocarcinoma de Pulmão/complicações , Pessoa de Meia-Idade , IdosoRESUMO
AIM: to determin the recurrence rate of benign recto-colonic polyps in a 5-year interval, and compare the development rate of intrapolypoid carcinomatous lesions in polypectomized versus nonpolypectomized subjects. MATERIAL AND METHOD: a group of 77 patients diagnosed with recto-colonic polypoid lesions during the period 2014-2019 underwent colonoscopy at the time of study initiation and then annually during a five-year interval. Results: The recurrence rate of polyps increased annually from 5 to 12.5%; the highest rate was noted in the last two years. The five-year cumulative risk of neoplastic lesions was 73% in patients without polypectomy and 20% among those with endoscopic resection (p 0.05). Comparing the recurrence rate of benign lesions (60%) in patients without neoplastic findings with the recurrence rate of adenomas in patients with benign lesions (40%), a higher risk of recurrence was found in the first category, and seemed to be influenced by the personal history of pre-existing adenomatous lesions. CONCLUSION: an increased risk of colorectal polyps recurrence was reported during five year follow up; moreover, during the first three years an increased risk of malignant transformation was observed among cases in which endoscopic resection was not feasible when compared to those in which complete excision was feasible.
Assuntos
Pólipos do Colo , Neoplasias Colorretais , Humanos , Pólipos do Colo/cirurgia , Pólipos do Colo/diagnóstico , Pólipos do Colo/patologia , Resultado do Tratamento , Colonoscopia , Colo/patologia , Reto/patologia , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/cirurgia , Neoplasias Colorretais/patologiaRESUMO
Heterotopic pancreas is a rare congenital abnormality. The most common location is the stomach, duodenum and proximal jejunum. Rare locations are represented by the ampulla of Vater, esophagus, ileum, Meckel diverticulum, biliary tract, mesentery and spleen. We present the case of a 49 year old patient investigated for obstructive jaundice and diagnosed with an ampullar heterotopy of pancreas parenchyma, initially considered to be a malignant tumor. A Whipple pancreatoduodenectomy was performed with good postoperative evolution, the serum levels of bilirubin being normal after the first postoperative week.
Assuntos
Ampola Hepatopancreática , Coristoma , Icterícia Obstrutiva , Pâncreas , Pancreaticoduodenectomia , Humanos , Ampola Hepatopancreática/cirurgia , Icterícia Obstrutiva/etiologia , Icterícia Obstrutiva/cirurgia , Icterícia Obstrutiva/diagnóstico , Coristoma/complicações , Coristoma/cirurgia , Coristoma/diagnóstico , Pancreaticoduodenectomia/métodos , Pessoa de Meia-Idade , Resultado do Tratamento , Diagnóstico Diferencial , Masculino , Doenças do Ducto Colédoco/cirurgia , Doenças do Ducto Colédoco/diagnóstico , Doenças do Ducto Colédoco/complicaçõesRESUMO
Colorectal cancer is the second leading cause of cancer-related mortality worldwide. Numerous pathophysiological mechanisms, such as abnormal cell proliferation, cell differentiation, resistance to apoptosis, invasion of structures adjacent to colorectal tumor cells, and distant metastasis, are involved in colorectal carcinogenesis. These processes are initiated by the complex interaction of a number of genetic and environmental factors, including sedentary lifestyle, obesity, alcohol consumption, smoking, or gut microbiota. Despite the significant progress achieved in the diagnostic and therapeutic management of patients with colorectal cancer, there has been recently a noteworthy increase in the incidence of colorectal cancer in individuals below the age of 50 years. Early-onset colorectal cancer has a different frequency of oncogenic mutations, a higher prevalence of mucinous histology, a distinct deoxyribonucleic acid (DNA) methylation profile, a more distal location, and lower survival rates. A significant improvement in the prognosis of these patients can be achieved through the detection and removal of modifiable risk factors, along with the implementation of personalized screening strategies for individuals at high risk for this malignancy. Furthermore, gaining comprehension of the pathophysiological mechanisms by which these risk factors contribute to the process of oncogenesis may facilitate the discovery of novel therapeutic targets.
Assuntos
Carcinogênese , Neoplasias Colorretais , Humanos , Pessoa de Meia-Idade , Transformação Celular Neoplásica , Fatores de Risco , Consumo de Bebidas Alcoólicas , Neoplasias Colorretais/epidemiologia , Neoplasias Colorretais/etiologiaRESUMO
The last decades have brought impressive advances in liver transplantation. As a result, there was a notable rise in the number of liver transplants globally. Advances in surgical techniques, immunosuppressive therapies and radiologically guided treatments have led to an improvement in the prognosis of these patients. However, the risk of complications remains significant, and the management of liver transplant patients requires multidisciplinary teams. The most frequent and severe complications are biliary and vascular complications. Compared to vascular complications, biliary complications have higher incidence rates but a better prognosis. The early diagnosis and selection of the optimal treatment are crucial to avoid the loss of the graft and even the death of the patient. The development of minimally invasive techniques prevents surgical reinterventions with their associated risks. Liver retransplantation remains the last therapeutic solution for graft dysfunction, one of the main problems, in this case, being the low number of donors.
Assuntos
Doenças Cardiovasculares , Transplante de Fígado , Humanos , Transplante de Fígado/efeitos adversos , Fígado , Doadores de Tecidos , Doenças Cardiovasculares/etiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/epidemiologia , Estudos RetrospectivosRESUMO
Background: platelet to lymphocyte ratio remains a significant prognostic factor in different malignancies. The aim of the current paper is to study the correlation between the preoperative values of platelet to lymphocyte ratio (PLR) and the postoperative outcomes in ovarian cancer patients. Method: we conducted a retrospective study on 57 patients submitted to cytoreductive surgery between 2014-2020. We determined the optimal cut off value of PLR for predicting survival outcomes by using the Receiver Operating Characteristic curve a value of 350 being obtained. The patients were further classified in two groups according to the PLR value. Results: there were 37 patients with PLR 350 and respectively 20 patients with PLR 350. Patients in the second group were significantly older and presented significantly higher rates of perioperative complications, a significantly higher level of circulating platelets, of CA125 and respectively a significantly lower level of circulating lymphocytes and of preoperative hemoglobin level. Meanwhile, patients in the second group reported a significantly poorer disease free and overall survival. Conclusions: ovarian cancer patients with higher preoperative levels of PLR trend to have a poorer early and long-term postoperative outcome. Therefore, in such cases more aggressive systemic therapies might be needed.
Assuntos
Plaquetas , Neoplasias Ovarianas , Humanos , Feminino , Estudos Retrospectivos , Resultado do Tratamento , Neoplasias Ovarianas/cirurgia , LinfócitosRESUMO
Background: hyponatremia represents one of the most commonly encountered conditions in hospitalized patients, multiple mechanisms being cited so far, neoplastic syndromes being an important cause. The aim of the current paper is to analyse the presence and influence of the short- and long-term outcomes of hyponatremia on ovarian cancer patients submitted to surgery for advanced stage ovarian cancer. Method: 57 patients diagnosed with advanced stage ovarian cancer were submitted to surgery between 2014-2020. The patients were further classified according to the preoperative value of sodium into two groups. Results: there were 21 cases with preoperative normal values of sodium and respectively 36 cases with hyponatremia. Patients with preoperative hyponatremia associated a significantly higher rate of early postoperative complications and a significantly poorer long-term outcome. Therefore, cases with hyponatremia reported a mean disease-free survival of 10.8 months and respectively a mean overall survival of 18.5 months while cases with normal natrium levels reported a mean disease-free survival of 31.4 months and respectively a mean overall survival of 49.7 months (p=0.0001 and p 0.001). Conclusions: patients with lower preoperative values of sodium have a higher risk of developing postoperative complications and a significantly poorer outcome when compared to cases presenting normal levels of sodium preoperatively.
Assuntos
Hiponatremia , Neoplasias Ovarianas , Humanos , Feminino , Hiponatremia/complicações , Hiponatremia/diagnóstico , Prognóstico , Resultado do Tratamento , Estudos Retrospectivos , Neoplasias Ovarianas/complicações , Neoplasias Ovarianas/cirurgia , Sódio , Complicações Pós-Operatórias/etiologiaRESUMO
Intrahepatic cholangiocarcinomas represent rare and aggressive malignancies developing from the second order bile ducts to the smaller biliary branches. The aim of this narrative review is to discuss about the main diagnostic and therapeutic challenges in order to help medical and surgical oncologists to gain familiarity in regard to this subject. Articles discussing about epidemiology, histology, diagnostic, perioperative management and surgery which were published from January 2000 to September 2023 included in Cochrane Library, PubMed, Embase, MedLine, Web of Science, Elsevier, Google Scholar databases were reviewed. Articles reviewed in the current paper came to demonstrate that the main problem in such cases is related to the fact that most cases remain asymptomatic for a long period of time and therefore are diagnosed in advanced stages of the disease when curative procedures are feasible after performing extended visceral sacrifice or even worse, are no longer possible; however, the most efficient therapeutic strategy in order to improve the long term outcomes remains radical surgery. In this respect, attention was focused on improving the accuracy of the diagnostic tools and on identifying non-surgical therapeutic options which might increase the chances of achieving complete resection. Intrahepatic cholangiocarcinoma represent rare aggressive tumors with poor outcomes especially if radical surgery is not feasible.
Assuntos
Neoplasias dos Ductos Biliares , Colangiocarcinoma , Humanos , Ductos Biliares Intra-Hepáticos/cirurgia , Ductos Biliares Intra-Hepáticos/patologia , Neoplasias dos Ductos Biliares/diagnóstico , Neoplasias dos Ductos Biliares/epidemiologia , Neoplasias dos Ductos Biliares/cirurgia , Resultado do Tratamento , Colangiocarcinoma/diagnóstico , Colangiocarcinoma/epidemiologia , Colangiocarcinoma/cirurgiaRESUMO
Adverse drug reactions represent a major public health problem, both from an economic point of view and, mainly, from the point of view of the induced pathology (iatrogenic diseases), being difficult to differentiate from other pathological conditions or even from the treated disease. Thus, these aspects prevent the use of the first-choice drugs needed for a particular treatment, in different therapeutic classes: beta-lactam antibiotics; sulfonamides; macrolide antibiotics; quinolones; non-steroidal anti-inflammatories; corticosteroids; Angiotensin converting enzyme (ACE) inhibitors; general anesthetics; biological drugs; antiepileptic drugs etc. On the other hand, adverse drug reactions represent a major problem for both clinical practice and preclinical research, in order to develop new drugs. Hypersensitivity reactions mainly refer to the adverse effects that can be harmful, disturbing, and sometimes fatal, that appear under the conditions of a normal immune system, including allergies and autoimmune reactions, both triggered by an immunological-allergic mechanism. The main purpose of this paper is to review the main classes of drugs involved in inducing hypersensitivity reactions.
Assuntos
Hipersensibilidade a Drogas , Preparações Farmacêuticas , Inibidores da Enzima Conversora de Angiotensina/efeitos adversos , Antibacterianos/efeitos adversos , Anti-Inflamatórios não Esteroides/efeitos adversos , Hipersensibilidade a Drogas/diagnóstico , Hipersensibilidade a Drogas/etiologia , Hipersensibilidade a Drogas/prevenção & controle , HumanosRESUMO
Background and Objectives: Patients with surgical aortic stenosis (AS) show impaired diastolic filling, which is a risk factor for early and late mortality after aortic valve replacement (AVR). There is a paucity of information concerning the impact of restrictive diastolic filling and the evolution of diastolic dysfunction in the early and medium terms post-AVR. We aimed to determine the prognostic value of the presence of a restrictive left-ventricular (LV) diastolic filling pattern (LVDFP) and dilated left atrium (LA) in patients with AS and LV systolic dysfunction (LVEF < 40%) who underwent AVR, and to define the independent predictors for immediate and long-term prognosis and their value for preoperative risk estimation. Materials and Methods: The study was prospective and included 197 patients with surgical AS and LVEF <40% who underwent AVR. Preoperative echocardiographic examinations were repeated at day 10, at 1, 3 and 6 months, and at 1 and 2 years after surgery, with evaluation of LVEF, diastolic function and LA dimension index (mm/m2). Depending on LV systolic performance, patients were classified as Group A (LVEF: 30−40%) or Group B (LVEF < 30%). Results: The main echographic independent parameters for early and late postoperative death were: restrictive LVDFP, significant pulmonary hypertension, LV end-systolic diameter (LVESD) >55 mm and the presence of second-degree mitral regurgitation. Restrictive LVDFP and LA dimension >30 mm/m2 were independent predictors for fatal outcome (p = 0.0017). Conclusions: Assessment of diastolic function and LA dimension are reliable parameters in predicting fatal outcome and hospitalization for heart failure, having an independent and incremental prognostic value in patients with surgical AS. Complete evaluation of LVDFP with all the echographic measurements (including TDI) should routinely be part of the preoperative assessment of patients with LV systolic dysfunction undergoing AVR.
Assuntos
Estenose da Valva Aórtica , Implante de Prótese de Valva Cardíaca , Disfunção Ventricular Esquerda , Humanos , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Prognóstico , Estudos Prospectivos , Ecocardiografia Doppler/efeitos adversos , Ecocardiografia Doppler/métodos , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Função Ventricular Esquerda , Estudos Retrospectivos , Volume SistólicoRESUMO
Background and Objectives: Chronic severe aortic valve disease is associated with important changes in left ventricle (LV) performance associated with eccentric or concentric LV hypertrophy. We aimed to assess the immediate prognostic implications of the type of the LV diastolic filling pattern (LVDFP) compared with LV systolic performance in patients with severe aortic regurgitation (AR) undergoing aortic valve replacement (AVR) and to define the independent echographic predictors for the immediate and long-term prognoses. Materials and Methods: We performed a prospective study enrolling 332 AR patients undergoing AVR, divided into two groups: Group A201 pts with normal LV systolic function, divided into two subgroups (A1: 129 pts with a nonrestrictive LVDFP and A2: 72 pts with restrictive LVDFP), and Group B131 pts with LV systolic dysfunction (LV ejection fraction LVEF < 50%), divided into two subgroups (B1: 83 pts with a nonrestrictive LVDFP and B2: 48 pts with restrictive LVDFP). Results: The early postoperative mortality rate was higher in patients with a restrictive LVDFP (11.12% in A2 and 12.5% in B2) compared with normal LV filling (2.32% in A1 and 7.63% in B1, p < 0.0001), regardless of the LVEF. The restrictive LVDFPdefined by at least one of the following echographic parameters: an E/A > 2 with an E wave deceleration time (EDt) < 100 ms; an isovolumetric relaxation time (IVRT) < 60 ms; or an S/D ratio < 1 in the pulmonary vein flowwas an independent predictor for early postoperative mortality, increasing the relative risk by 8.2-fold. Other independent factors associated with early poor prognosis were an LV end-systolic diameter (LVESD) > 58 mm, an age > 75 years, and the presence of comorbidities (chronic obstructive pulmonary disease-COPD or diabetes mellitus). On a medium-term, an unfavorable evolution was associated with: an age > 75 years (RR = 8.1), an LV end-systolic volume (LVESV) > 95 cm3 (RR = 6.7), a restrictive LVDFP (RR = 9.8, p < 0.0002), and pulmonary hypertension (RR = 8.2). Conclusions: The presence of a restrictive LVDFP in patients with AR undergoing AVR is associated with both increased early and medium-term mortality rates. The LV diastolic function is a more reliable parameter for prognosis than LV systolic performance (RR 9.2 versus 2.1). Other independent predictors for increased early postoperative mortality rate were: an age > 75 years, an LVESD > 58 mm, and comorbidities (diabetes mellitus, COPD), and for unfavorable evolution at 2 years postoperatively: an age > 75 years, an LVESV > 95 cm3, and severe pulmonary hypertension.
Assuntos
Insuficiência da Valva Aórtica , Hipertensão Pulmonar , Doença Pulmonar Obstrutiva Crônica , Disfunção Ventricular Esquerda , Humanos , Idoso , Insuficiência da Valva Aórtica/complicações , Insuficiência da Valva Aórtica/cirurgia , Valva Aórtica/cirurgia , Estudos Prospectivos , Sopros Cardíacos , Disfunção Ventricular Esquerda/complicaçõesRESUMO
Tuberculosis is a disease with serious consequences in terms of morbidity and mortality. Pancreatic localization is very rare and is mostly encountered in patients with immunosuppressive disorders. A 59-year-old woman with arterial hypertension, grade 2 obesity, and a history of cholecystectomy, was admitted for fever (38.5 °C), jaundice, and marked physical asthenia. The blood tests showed severe metabolic acidosis, with partial respiratory compensation, mild microcytic normochromic anemia, inflammatory syndrome, procalcitonin value ten times the upper limit of normal, nitrogen retention syndrome, hypoalbuminemia, hypertriglyceridemia, hypercholesterolemia, and moderate hyponatremia. The electrocardiogram, chest X-ray, and abdominal ultrasound did not show any significant pathological changes. Contrast-enhanced computed tomography raised the suspicion of acute-on-chronic pancreatitis and subsequent evaluation by magnetic resonance imaging raised the suspicion of a pancreatic tumor. Pancreatic fine needle biopsy under echoendoscopic guidance revealed purulent material, which was sent for cytological and bacteriological examination. The Ziehl-Neelsen stain showed acid-alcoholic resistant bacilli, while bacterial cultures were positive for gentamicin and tigecycline-sensitive Klebsiella. The diagnosis of pancreatic tuberculosis was established. Pancreatic tuberculosis is a very rare condition that often mimics pancreatic cancer. The peculiarity of the case is the appearance of pancreatic tuberculosis in an immunocompetent woman and the association with Klebsiella infection.
Assuntos
Neoplasias Pancreáticas , Tuberculose , Feminino , Gentamicinas , Humanos , Pessoa de Meia-Idade , Nitrogênio , Neoplasias Pancreáticas/diagnóstico , Pró-Calcitonina , Tigeciclina , Tuberculose/diagnóstico , Neoplasias PancreáticasRESUMO
Background and Objectives: There is no consensus regarding the optimal therapy sequence in stage II and III bladder cancer. The study aimed to evaluate the long-term oncologic outcomes in patients with bladder cancer after a multimodality approach. Materials and methods: Medical files of 231 consecutive patients identified with stage II (46.8%), IIIA (30.3%), and IIIB (22.9%) transitional cell carcinoma of the bladder (BC) treated with a multimodality approach were retrospectively reviewed. The treatment consisted of transurethral resections or cystectomy, radiotherapy alone or concurrent chemoradiotherapy as definitive treatment, or neoadjuvant chemotherapy using platinum salt regimens. Results: Median age at diagnosis was 65 ± 10.98 years. Radical or partial cystectomy was performed in 88 patients (37.1%), and trans-urethral resection of bladder tumor (TURBT) alone was performed in 143 (61.9%) patients. Overall, 40 patients (17.3%) received neoadjuvant chemotherapy and 82 (35.5%) received definitive chemoradiotherapy. After a median follow-up of 30.6 months (range 3-146 months), the median disease-free survival (DFS) for an entire lot of patients was 32 months, and the percentage of patients without recurrence at 12, 24, and 36 months was 86%, 58%, and 45%, respectively. Patients receiving neoadjuvant chemotherapy had a better oncologic outcome compared to patients without neoadjuvant chemotherapy (median DFS not reached vs. 31 months, p = 0.038, HR = 0.55, 95% CI 0.310-0.951). There was a trend for better 3-year DFS with radical cystectomy vs. TURBT (60 months vs. 31 months, p = 0.064). Definitive chemoradiotherapy 3-year DFS was 58% compared to 44% in patients who received radiotherapy or chemotherapy alone. Conclusions: In patients with stages II and III, both neoadjuvant chemotherapy and concurrent radio-chemotherapy are valid options for treatment and must be part of a multidisciplinary approach.
Assuntos
Carcinoma de Células de Transição , Neoplasias da Bexiga Urinária , Humanos , Pessoa de Meia-Idade , Idoso , Estudos Retrospectivos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Bexiga Urinária/tratamento farmacológico , Carcinoma de Células de Transição/tratamento farmacológico , Terapia Neoadjuvante , Músculos , Resultado do Tratamento , Invasividade NeoplásicaRESUMO
Pre-procedure mitral regurgitation (MR) is a frequent coexistent finding in patients undergoing transcatheter aortic valve replacement (TAVR), and most of them (up to 55%) experience a significant improvement in MR after the procedure. Although seldom described, mitral valve perforation after TAVR is a potentially serious complication that physicians should be aware of, as moderate or severe MR in TAVR recipients is associated with a high early mortality rate. We herein describe the case of a 65-year-old man presenting with worsening heart failure symptoms 5 months after TAVR due to an intraprocedural anterior mitral leaflet perforation and discuss the diagnostic process and therapeutic course of the case. Furthermore, we draw attention to the essential role of echocardiography in the management of TAVR procedures, taking into account its ability in detecting early complications, and emphasize the value of CT as a main determinant to predict long-term MR improvement after TAVR and to assess the potential candidates for double valve repair with percutaneous techniques.
Assuntos
Estenose da Valva Aórtica , Insuficiência da Valva Mitral , Idoso , Valva Aórtica/cirurgia , Estenose da Valva Aórtica/complicações , Humanos , Masculino , Insuficiência da Valva Mitral/complicações , Insuficiência da Valva Mitral/cirurgia , Índice de Gravidade de Doença , Resultado do TratamentoRESUMO
PURPOSE OF REVIEW: Hypercholesterolemia is a major risk factor for cardiovascular diseases. Administration of statins represents the cornerstone of the prevention and treatment of cardiovascular disease, with demonstrated long-term safety and efficacy. This review aims to revisit statin intolerance mechanisms, as well as to discuss new data and therapeutic options. RECENT FINDINGS: Although statins are well tolerated, myopathy and other adverse effects are a challenging problem, being the main reason for poor adherence to treatment and failure in lowering cardiovascular risk. Statin intolerance is the subject of ongoing research, as these drugs are widely used. There are alternative options of treatment if statin intolerance emerges, that is, lowering the dose, intermittent dosages, and/or combining a statin with other drugs, such as ezetimibe, proprotein convertase subtilisin-kexin type 9 inhibitors, bempedoic acid, angiopoietin-like 3 protein inhibitors, and nutraceuticals. If even the lowest statin dose cannot be tolerated, a nonstatin regimen is recommended to reduce LDL cholesterol levels. SUMMARY: Treatment options in statin intolerance include combinations of a lower dose of statin with other lipid-lowering regimens or only nonstatin drugs in the presence of complete intolerance. New hypolipidemic therapies that address gene editing are emerging, and may prove useful in the future.
Assuntos
Anticolesterolemiantes , Doenças Cardiovasculares , Inibidores de Hidroximetilglutaril-CoA Redutases , Hipercolesterolemia , Anticolesterolemiantes/efeitos adversos , Doenças Cardiovasculares/tratamento farmacológico , Doenças Cardiovasculares/prevenção & controle , LDL-Colesterol , Ezetimiba , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/efeitos adversos , Hipercolesterolemia/tratamento farmacológico , Pró-Proteína Convertase 9RESUMO
OBJECTIVE: Type 2 diabetes (T2D) is one of the centenarian metabolic disorders and is considered as a stellar and leading health issue worldwide. According to the International Diabetes Federation (IDF) Diabetes Atlas and National Diabetes Statistics, the number of diabetic patients will increase at an exponential rate from 463 to 700 million by the year 2045. Thus, there is a great need for therapies targeting functions that can help in maintaining the homeostasis of glucose levels and improving insulin sensitivity. 5' adenosine monophosphate-activated protein kinase (AMPK) activation, by various direct and indirect factors, might help to overcome the hurdles (like insulin resistance) associated with the conventional approach. MATERIALS AND RESULTS: A thorough review and analysis was conducted using various database including MEDLINE and EMBASE databases, with Google scholar using various keywords. This extensive review concluded that various drugs (plant-based, synthetic indirect/direct activators) are available, showing tremendous potential in maintaining the homeostasis of glucose and lipid metabolism, without causing insulin resistance, and improving insulin sensitivity. Moreover, these drugs have an effect against diabetes and are therapeutically beneficial in the treatment of diabetes-associated complications (neuropathy and nephropathy) via mechanism involving inhibition of nuclear translocation of SMAD4 (SMAD family member) expression and association with peripheral nociceptive neurons mediated by AMPK. CONCLUSION: From the available information, it may be concluded that various indirect/direct activators show tremendous potential in maintaining the homeostasis of glucose and lipid metabolism, without resulting in insulin resistance, and may improve insulin sensitivity, as well. Therefore, in a nut shell, it may be concluded that the regulation of APMK functions by various direct/indirect activators may bring promising results. These activators may emerge as a novel therapy in diabetes and its associated complications.
Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Complicações do Diabetes/enzimologia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/enzimologia , Regulação Enzimológica da Expressão Gênica , Animais , Berberina/química , Ativação Enzimática , Glucose/metabolismo , Homeostase , Humanos , Resistência à Insulina , Metabolismo dos Lipídeos/efeitos dos fármacos , Camundongos , Fosforilação , Polifenóis/química , Conformação Proteica , Domínios Proteicos , Ratos , Tiazolidinedionas/química , Ácido Tióctico/química , Xilose/químicaRESUMO
Hepatic disease accounts for approximately 2 million deaths/year worldwide. Liver fibrosis, as the last stage of numerous chronic liver diseases, is one of the most relevant prognostic factors. The liver biopsy with the histopathological examination is considered to be the "gold standard" for the identification and staging of the hepatic fibrosis. However, liver biopsy is known as an invasive investigation that has multiple limitations. Research studies conducted in the last few years focused on identifying non-invasive type methods for the evaluation of hepatic fibrosis; usually, there are 2 categories of such investigations: serologic tests and imaging techniques. This narrative review presents the non-invasive investigation methods used in the liver fibrosis evaluation. New molecular perspectives on fibrogenesis and fibrosis regression, as well as the appearance of therapeutic antifibrotic agents, justify the necessity of non-invasive tools to detect and grade liver fibrosis.
Assuntos
Cirrose Hepática , Biópsia , Técnicas de Imagem por Elasticidade , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Cirrose Hepática/diagnóstico , Cirrose Hepática/patologiaRESUMO
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Nowadays, humanity faces one of the most serious health crises, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic. The severity of coronavirus disease 2019 (COVID-19) pandemic is related to the high rate of interhuman transmission of the virus, variability of clinical presentation, and the absence of specific therapeutic methods. COVID-19 can manifest with non-specific symptoms and signs, especially among the elderly. In some cases, the clinical manifestations of hyponatremia may be the first to appear. The pathophysiological mechanisms of hyponatremia among patients with COVID-19 are diverse, including syndrome of inappropriate antidiuretic hormone secretion (SIADH), digestive loss of sodium ions, reduced sodium ion intake or use of diuretic therapy. Hyponatremia may also be considered a negative prognostic factor in patients diagnosed with COVID-19. We need further studies to evaluate the etiology and therapeutic management of hyponatremia in patients with COVID-19.