ABSTRACT
Objective:To investigate the role of three-dimensional dose distribution-based deep learning model in predicting distant metastasis of head and neck cancer.Methods:Radiotherapy and clinical follow-up data of 237 patients with head and neck cancer undergoing intensity-modulated radiotherapy (IMRT) from 4 different institutions were collected. Among them, 131 patients from HGJ and CHUS institutions were used as the training set, 65 patients from CHUM institution as the validation set, and 41 patients from HMR institution as the test set. Three-dimensional dose distribution and GTV contours of 131 patients in the training set were input into the DM-DOSE model for training and then validated with validation set data. Finally, the independent test set data were used for evaluation. The evaluation content included the area under receiver operating characteristic curve (AUC), balanced accuracy, sensitivity, specificity, concordance index and Kaplan-Meier survival curve analysis.Results:In terms of prognostic prediction of distant metastasis of head and neck cancer, the DM-DOSE model based on three-dimensional dose distribution and GTV contours achieved the optimal prognostic prediction performance, with an AUC of 0.924, and could significantly distinguish patients with high and low risk of distant metastasis (log-rank test, P<0.001). Conclusion:Three-dimensional dose distribution has good predictive value for distant metastasis in head and neck cancer patients treated with IMRT, and the constructed prediction model can effectively predict distant metastasis.
ABSTRACT
Objective:To evaluate the efficacy and safety of thoracic radiotherapy in the treatment of patients with extensive-stage small cell lung cancer (ES-SCLC) with different metastatic sites.Methods:A retrospective analysis was performed among 830 ES-SCLC patients who were admitted to our hospital from 2010 to 2019. They all received the first-line chemotherapy and had no progression after chemotherapy. 341 patients of them received thoracic radiotherapy after chemotherapy. The main endpoint was overall survival. The Chi-square test was used to compare the categorical data including gender and age, etc. Univariate survival analysis was estimated by Kaplan-Meier method and the log-rank test was used to compare the survival curves between two groups. A multivariate prognostic analysis was made by the Cox proportional hazard model.Results:In all the patients, the overall survival (OS) was 12.4 months. The patients with thoracic radiotherapy had significantly higher OS than the patients without thoracic radiotherapy (15.2 months vs.10.8 months, P<0.001). Thoracic radiotherapy significantly improved the OS in patients without liver metastasis (16.0 months vs.11.4 months, P<0.001) in the oligometastatic patients. But for the oligometastatic patients with liver metastasis, the OS benefit was not significant (14.2 months vs. 10.6 months, P=0.072). For polymetastatic patients without liver metastasis, thoracic radiotherapy offered significant OS benefits (14.5 months vs.10.9 months, P<0.001), but for the polymetastatic patients with liver metastasis, the OS was not improved with thoracic radiotherapy (10.2 months vs.9.2 months, P=0.715). Conclusions:In ES-SCLC patients, thoracic radiotherapy provides significant OS benefits in patients with oligometastases ES-SCLC without liver metastasis and for the liver metastatic patients may also benefit from thoracic radiotherapy based on the effectiveness of chemotherapy. In patients with multiple metastases, thoracic radiotherapy only improves the OS in patients without liver metastasis, but does not improve the prognosis in patients with liver metastasis.
ABSTRACT
Colorectal cancer is one of the most common malignant tumors in the world, with a high mortality, but with the continuous improvement of diagnosis and treatment technology and treatment concept in recent years, many patients can get timely and effective treatment. From the aspects of distant metastasis of colorectal cancer and the progress of diagnosis and treatment under multidisciplinary diagnosis and treatment mode, focusing on the significance of multidisciplinary diagnosis and treatment mode for metastatic colorectal cancer, and exploring a more accurate and effective treatment system, so as to provide some reference for the comprehensive treatment of metastatic colorectal cancer.
ABSTRACT
Introducción. El cáncer gástrico en nuestro país es una de las neoplasias más comunes y su diagnóstico generalmente se realiza en estadios avanzados. El objetivo de este estudio fue describir las características sociodemográficas y clínicas, la experiencia quirúrgica, y las complicaciones en los pacientes con cáncer gástrico.Métodos. Se presenta una serie de casos en la que se revisaron las historias clínicas de pacientes con diagnóstico histológico de adenocarcinoma gástrico, a quienes se les practicó gastrectomía mínimamente invasiva en el Instituto Nacional de Cancerología de Bogotá D.C., Colombia, entre enero de 2012 y diciembre de 2018.Resultados. Se realizó gastrectomía por laparoscopia convencional en 31 pacientes (75,6 %) y por laparoscopia asistida por robot en 10 pacientes (24,4 %). Los estadios clínicos fueron IA en 20 pacientes (48,7 %), IB en tres (7,3 %), IIA en nueve (21,9%), IIB en cinco (12,2 %) y IIIA en cuatro pacientes (9,7 %). Se realizaron 24 gastrectomías totales (58,5 %) y 17 distales (41,4 %). No hubo muertes intraoperatorias ni posoperatorias a 30 días. La disección ganglionar predominante fue D2 en el 92,6 % (n=38) de los casos. Se presentaron complicaciones posoperatorias en el 17,1 % (n=7).Discusión. La gastrectomía por cáncer gástrico realizada por vía laparoscópica convencional y la asistida por robot, parecen ser procedimientos seguros y factibles. La determinación de supervivencia libre de enfermedad y mortalidad asociada a cáncer será necesaria para establecer la seguridad oncológica de este tipo de procedimientos en nuestro medio
Introduction. In our country, gastric cancer is one of the most common neoplasms and its diagnosis is generally made in advanced stages. The objective of this study was to describe the sociodemographic and clinical characteristics, surgical experience, and complications in patients with gastric cancer. In our country, gastric cancer is one of the most common neoplasms and its diagnosis is generally made in advanced stages. The objective of this study was to describe the sociodemographic and clinical characteristics, surgical experience, and complications in patients with gastric cancer.Methods. A series of cases is presented in which the medical records of patients with a histological diagnosis of gastric adenocarcinoma, who underwent minimally invasive gastrectomy at the National Cancer Institute of Bogotá, Colombia, between January 2012 and December 2018. Results. Conventional laparoscopic gastrectomy was performed in 31 patients (75.6%) and by robot-assisted laparoscopy in 10 patients (24.4%). The clinical stages were IA in 20 patients (48.7%), IB in three (7.3%), IIA in nine (21.9%), IIB in five (12.2%), and IIIA in four patients (9.7%). Twenty-four total gastrectomies (58.5%) and 17 distal gastrectomies (41.4%) were performed. There were no intraoperative or postoperative deaths at 30 days. The predominant lymph node dissection was D2 in 92.6% (n = 38) of the cases. Postoperative complications occurred in 17.1% (n=7). Discussion. Gastrectomy due to gastric cancer, performed by conventional laparoscopic and robot-assisted approaches, appear to be safe and feasible procedures. The determination of disease-free survival and cancer-associated mortality will be necessary to establish the oncological safety of this type of procedure in our environment
Subject(s)
Humans , Stomach Neoplasms , Laparoscopy , Gastrectomy , Robotics , Mortality , Intraoperative ComplicationsABSTRACT
OBJECTIVE: This study aimed to analyze the relationship of neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR), and monocyte-lymphocyte ratio (MLR) with clinicopathological characteristics of patients with differentiated thyroid cancer (DTC). METHODS: This retrospective study included 390 patients with DTC who had complete blood cell counts available at the time of surgery. NLR, PLR, and MLR were calculated, and the risk of cancer-related death, structural recurrence, and response to therapy were assessed using the eighth edition of the tumor-node-metastasis classification, American Thyroid Association (ATA) Risk Stratification System, and ATA Response to Therapy Reclassification, respectively. RESULTS: PLR was higher in patients with distant metastasis than in those without (133.15±43.95 versus 119.24±45.69, p=0.0345) and lower in patients with disease-free status (117.72±44.70 versus 131.07±47.85, p=0.0089) than in those who experienced persistent disease or death. Patients aged ≥55 years had a higher MLR than those aged <55 years (0.26±0.10 versus 0.24±0.12, p=0.0379). Higher MLR (odds ratio [OR]: 8.775, 95% confidence interval [CI]: 1.532-50.273, p=0.0147), intermediate ATA risk (OR: 4.892, 95% CI: 2.492-9.605, p≤0.0001), and high ATA risk (OR: 5.998, 95% CI: 3.126-11.505, p≤0.0001) were risk factors associated with active disease. NLR was not significantly different among the studied variables. Receiver operating characteristic curve cut-off values for NLR, PLR, and MLR were able to differentiate distant metastasis from lymph node metastasis (NLR>1.93: 73.3% sensitivity and 58.7% specificity, PLR>124.34: 86.7% sensitivity and 69.2% specificity, MLR>0.21: 80% sensitivity and 45.2% specificity). CONCLUSION: Cut-off values of NLR, PLR, and MLR differentiated distant metastasis from lymph node metastasis with good sensitivity and accuracy. PLR was associated with disease-free status and it was higher in DTC patients with distant metastasis, persistent disease, and disease-related death. MLR was a risk factor for active disease.
Subject(s)
Humans , Thyroid Neoplasms/surgery , Neutrophils , Prognosis , Thyroidectomy , Lymphocytes , Monocytes , Retrospective Studies , Lymph Nodes , Neoplasm Recurrence, LocalABSTRACT
Objective To establish a nomogram for predicting the distant metastasis risk of pancreatic neuroendocrine tumors (pNETs) in elderly patients. Methods We extracted data of patients with diagnosis of pNETs at age ≥65 years old between 1973 and 2015 from the Surveillance, Epidemiology, and End Results (SEER) database. All eligible patients were divided randomly into a training cohort and validation cohort. Uni- and multivariate logistic regression analyses were performed on the training cohort to identify independent factors for distant metastasis. A nomogram was developed based on the independent risk factors using rms packages of R software, and was validated internally by the training cohort and externally by the validation cohort using C-index and calibration curves. Results A total of 411 elderly patients were identified, of which 260 were assigned to training cohort and 151 to validation cohort. Univariate and multivariate logistic regression analyses indicated the tumor site (body/tail of pancreas: odds ratio [
Subject(s)
Aged , Humans , Neoplasm Staging , Nomograms , Pancreatic Neoplasms , Prognosis , Risk FactorsABSTRACT
Metastases to the parotid gland are very rare. We report the second case of bilateral metastases to the parotid gland from a breast invasive ductal carcinoma. A 50-year-old female was treated for an early left breast cancer in 2007. A pulmonary metastatic relapse was diagnosed in 2013. A metastatic skin extension required several lines of treatment from June 2014 to July 2016. Bilateral parotid gland metastases from a breast invasive ductal carcinoma were confirmed in December 2016. The patient died on May 2017 from cerebral metastases. Only 16 cases of metastasis to the parotid gland from breast cancer have been reported in the literature. Only one case had a bilateral involvement. Prognosis is poor, and there are no specific guidelines for the treatment
ABSTRACT
The most common primary malignant disease in the world amongst women is carcinoma breast. Metabolic activity of a lesion (SUVmax) has strong clinical correlation with various prognostic factors according to numerous literature reviews. The main aim of this study is to assess the correlation between maximum Standardized Uptake Value [SUVmax] and initial disease staging (as per AJCC TNM-8th edition). We wanted to study the correlation between metabolic activity [SUVmax] of the primary tumour in breast carcinoma, and size of the primary, nodal and distant metastatic status.METHODSThis is an observational study conducted over a period of two years in breast cancer patients [n=139] undergoing PET-CT as a part of initial staging. PET-CT was done using Siemens Horizon True-V PET according to institutional protocols.RESULTSSignificantly higher SUVmax values were observed in tumours with larger size [>2 cms]. However, there was no significant correlation between SUVmax of primary tumours and the status of axillary nodal involvement and distant metastases [p = 0.125 and 0.847 respectively].CONCLUSIONSMetabolic activity of primary breast cancer has strong clinical correlation with size; however, there is no such correlation found in nodal and metastatic spread of the disease.
ABSTRACT
OBJECTIVE: This study proposes a novel reference standard for hypervascular hepatocellular carcinomas (HCCs), established by cone-beam computed tomography-hepatic arteriography (CBCT-HA) and two-year imaging follow-up, and discusses its clinical implication on tumor staging and understanding the intrahepatic distant recurrence (IDR) in relation to dynamic computed tomography (CT).MATERIALS AND METHODS: In this retrospective study, 99 patients were enrolled, who underwent CBCT-HA during initial chemoembolization for HCC suspected on CT. All patients underwent chemoembolization and regular clinical and imaging follow-up for two years. If IDR appeared on follow-up imaging, initial CBCT-HA images were reviewed to determine if a hypervascular focus pre-existed at the site of recurrence. Pre-existing hypervascular foci on CBCT-HA were regarded as HCCs in initial presentation. Initial HCCs were classified into three groups according to their mode of detection (Group I, detected on CT and CBCT-HA; Group II, additionally detected on CBCT-HA; Group III, confirmed by interval growth). We assessed the influence of CBCT-HA and two-year follow-up on initial tumor stage and calculated the proportion of IDR that pre-existed in initial CBCT-HA.RESULTS: A total of 405 nodules were confirmed as HCCs, and 297 nodules initially pre-existed. Of the initial 297 HCCs, 149 (50.2%) lesions were in Group I, 74 (24.9%) lesions were in Group II, and the remaining 74 (24.9%) lesions were in Group III. After applying CBCT-HA findings, 11 patients upstaged in T stage, and 4 patients had a change in Milan criteria. Our reference standard for HCC indicated that 120 of 148 (81.1%) one-year IDR and 148 of 256 (57.8%) two-year IDR existed on initial CBCT-HA.CONCLUSION: The proposed method enabled the confirmation of many sub-centimeter-sized, faintly vascularized HCC nodules that pre-existed initially but clinically manifested as IDR. Our reference standard for HCC helped in understanding the nature of IDR and the early development of HCC as well as the clinical impact of tumor staging and treatment decision.
Subject(s)
Humans , Angiography , Carcinoma, Hepatocellular , Follow-Up Studies , Methods , Neoplasm Staging , Recurrence , Retrospective StudiesABSTRACT
Objective: To establish a quantitative method for determining two N-acetyldopamine dimmers (Dimer A and Dimer B) in Cicadae Periostracum (CP), and to quantitatively evaluate the inner quality of CP commercial samples. Methods: An HPLC-UV method was developed and validated; The contents of Dimer A and Dimer B in 40 batches of commercial samples derived from four origins were determined and analyzed with hierarchical cluster analysis. Using optional Alltima C18 (250 mm × 4.6 mm, 5 μm) column, acetonitrile-water as mobile phase, the two dimers can achieve baseline separation. Good linearity was obtained within the measurement range. The average recoveries were 97.53%-102.75%. And the RSD of precision and repeatability were less than 5% respectively, and the samples were kept stable within 24 h. A total of 40 batches of CP can be divided into three groups with hierarchical cluster analysis. Results: The established method is convenient, accurate and precise, and can be used for the inner quality evaluation of CP. The contents of two dimmers were not correlated with the species originated from, and the contents in CP samples derived from Cryptotympana pustulata varied greatly, which maybe owe to the contamination of soil, thus controlling soil residue should be meaningful for the quality consistency of CP. Conclusion: The CP samples originated from Auritibicen flammatus, Cryptotympana mandrina and Platypleura kaem pferi also contain higher contents of the two dimmers. Concerning the similar characteristics of the chromatograms with that of Cryptotympana pustulata, the skin of Auritibicen flammatus, Cryptotympana mandrina and Platypleura kaem pferi may be potential resources of CP.
ABSTRACT
Objective@#To evaluate the clinical efficacy and prognostic factors of recurrent esophageal squamous cell carcinoma after neoadjuvant therapy combined with surgery.@*Methods@#From December 2011 to December 2015, 152 cases of recurrent thoracic esophageal squamous cell carcinoma after neoadjuvant therapy combined with surgery were retrospectively analyzed. The overall survival (OS) after treatment failure, clinical efficacy and prognostic factors of different salvage treatments were analyzed. OS was calculated by Kaplan-Meier method. Prognostic analysis was performed by using multivariate Cox regression model.@*Results@#The median interval of the first recurrence was 10.6(2.0 to 69.1) months. The median OS after recurrence was 8.0(0.8 to 43.3) months. The 1-, 2-and 3-year OS rates after recurrence were 36.0%, 15.1% and 5.2%, respectively. The median OS of patients with locoregional recurrence alone, distant metastasis alone and locoregional recurrence combined with distant metastasis was 11.3(1.8 to 43.3) months, 6.7(1.2 to 28.6) months and 5.1(0.8 to 22.9) months, respectively. Multivariate analysis demonstrated that neoadjuvant chemotherapy (P=0.009), ypTNM stage (P=0.012), comprehensive treatment after recurrence (P=0.000) and locoregional recurrence (P=0.026) were independently correlated with the OS of patients with recurrent esophageal squamous cell carcinoma.@*Conclusions@#Neoadjuvant therapy, ypTNM stage, recurrence pattern and post-recurrence treatment are the independent risk factors for clinical prognosis of patients with recurrent esophageal squamous cell carcinoma after neoadjuvant therapy combined with surgery. Clinical prognosis of patients with recurrent esophageal squamous cell carcinoma after neoadjuvant therapy is not satisfactory. After recurrence, combined treatment mode should be adopted according to the site of recurrence and neoadjuvant treatment mode to maximize the benefits of salvage treatment.
ABSTRACT
Objective To evaluate the clinical efficacy and prognostic factors of recurrent esophageal squamous cell carcinoma after neoadjuvant therapy combined with surgery.Methods From December 2011 to December 2015,152 cases of recurrent thoracic esophageal squamous cell carcinoma after neoadjuvant therapy combined with surgery were retrospectively analyzed.The overall survival (OS) after treatment failure,clinical efficacy and prognostic factors of different salvage treatments were analyzed.OS was calculated by Kaplan-Meier method.Prognostic analysis was performed by using multivariate Cox regression model.Results The median interval of the first recurrence was 10.6(2.0 to 69.1) months.The median OS after recurrence was 8.0(0.8 to 43.3) months.The 1-,2-and 3-year OS rates after recurrence were 36.0％,15.1％ and 5.2％,respectively.The median OS of patients with locoregional recurrence alone,distant metastasis alone and locoregional recurrence combined with distant metastasis was 11.3(1.8 to 43.3) months,6.7(1.2 to 28.6) months and 5.1 (0.8 to 22.9) months,respectively.Multivariate analysis demonstrated that neoadjuvant chemotherapy (P=0.009),ypTNM stage (P=0.012),comprehensive treatment after recurrence (P=0.000) and locoregional recurrence (P=0.026) were independently correlated with the OS of patients with recurrent esophageal squamous cell carcinoma.Conclusions Neoadjuvant therapy,ypTNM stage,recurrence pattern and postrecurrence treatment are the independent risk factors for clinical prognosis of patients with recurrent esophageal squamous cell carcinoma after neoadjuvant therapy combined with surgery.Clinical prognosis of patients with recurrent esophageal squamous cell carcinoma after neoadjuvant therapy is not satisfactory.After recurrence,combined treatment mode should be adopted according to the site of recurrence and neoadjuvant treatment mode to maximize the benefits of salvage treatment.
ABSTRACT
Background: LncRNAs is closely related to the development and progression of colorectal cancer, and its abnormal expression and regulation in tumor have high specificity. Aims: To screen the differentially expressed lncRNAs in colorectal cancer via The Cancer LncRNome Atlas, and to investigate the expression and clinical significance of LINC02363 in colorectal cancer. Methods: Microarray data of colorectal cancer patients from The Cancer LncRNome Atlas and TCGA database were extracted. The differentially expressed lncRNAs in colorectal cancer were screened. Real-time fluorescent quantitative PCR was used to detect LINC02363 expression in colorectal cancer cell lines and 53 colorectal cancer tissues from Shanghai Renji Hospital. Correlation of LINC02363 expression with survival and clinicopathological characteristics of colorectal cancer patients in TCGA database was analyzed. Results: Two up-regulated lncRNAs and 12 down-regulated lncRNAs related to prognosis of colorectal cancer were screened. Compared with normal intestinal epithelial cells, expression of LINC02363 was down-regulated in colorectal cancer cells. Expression of LINC02363 was significantly decreased in colorectal cancer tissue. Kaplan-Meier survival analysis showed that survival in low expression of LINC02363 group was significantly shorter than that in high expression of LINC02363 group. Low LINC02363 expression was positively correlated with distant metastasis of colorectal cancer. Conclusions: LINC02363 is down-regulated in colorectal cancer tissue, and patients with lower expression of LINC02363 have poorer prognosis and higher possibility of metastasis. It is suggested that LINC02363 can be used as a potential tumor marker to evaluate the development and distant metastasis of colorectal cancer.
ABSTRACT
The aims of this study were to determine the prognostic value of primary tumor surgery and identify optimal candidates for such surgery among patients with seminoma and distant metastasis at diagnosis. We identified 521 patients with seminoma and distant metastasis at diagnosis between 2004 and 2014 from the Surveillance, Epidemiology, and End Results database. Among these patients, 434 had undergone surgery, whereas 87 had not. The prognostic value of primary tumor surgery was assessed by Kaplan-Meier methods, log-rank analyses, and multivariate Cox's proportional hazards model. Survival curves and forest plots were also plotted. Survival analysis indicated that patients who underwent surgery had a better 5-year overall survival and cancer-specific survival than those who did not. Multivariate analyses demonstrated that primary tumor surgery is an independent prognostic factor for overall survival and cancer-specific survival, along with age at diagnosis, M stage, and marital status. In addition, primary tumor surgery still had considerable prognostic value in the subgroup of patients with lymph node metastasis. Further, forest plots demonstrated that patients with M1a stage, N1 or N2-3 stage, and a younger age at diagnosis (<60 years) may benefit from primary tumor surgery. In conclusion, our findings indicate that primary tumor surgery is correlated with improved survival in patients with seminoma and distant metastasis. Furthermore, primary tumor surgery is an independent prognostic indicator for patients with seminoma and distant metastasis.
ABSTRACT
Objective To investigate the correlation between CT texture analysis and synchronous distant metastasis in patients with lymph node-negative colorectal cancer. Methods The preoperative CT images of 82 patients with lymph node-negative colorectal cancer were analyzed retrospectively.There were 12 patients with simultaneous distant metastasis and 70 patients without simultaneous distant metastasis.The maximum plane of the lesion on plain scan and portal CT images was analyzed by TexRAD software.When the spatial scaling factor(SSF)was 0 and 2-6,six texture parameters were obtained,and the differences of texture parameters between the two groups were compared.The counting data were analyzed by chi-square test and the measurement data by Mann-Whitney test. Results There was a significant difference in the skewness of SSF=3 between the simultaneous distant metastasis group and the non-synchronous metastasis group on plain CT scan(
Subject(s)
Humans , Colorectal Neoplasms/diagnostic imaging , Lymph Nodes/diagnostic imaging , Neoplasm Metastasis , Retrospective Studies , Tomography, X-Ray ComputedABSTRACT
Serum thyroglobulin is used as part of the early postoperative assessment of differentiated thyroid cancer (DTC) since there is a clear relationship between an increased risk of recurrence and persistent disease after initial treatment and high postoperative stimulated thyroglobulin (ps-Tg) values. Thus, although ps-Tg above 10-30 ng/mL is considered an independent predictor of worse prognosis, the value that is associated with distant metastases is not defined. Thus, this was our objective. We selected 655 DTC patients from a nuclear medicine department database (Irmandade Santa Casa de Misericórdia de São Paulo, Brazil). All patients had received total thyroidectomy and radioactive iodine (RAI) therapy and had ps-Tg values higher than 10 ng/mL with negative anti-thyroglobulin antibodies. Then, we selected patients who presented post-therapy whole-body scan with pulmonary and/or bone uptake but with no mediastinum or cervical uptake. Patients with negative findings on functional imaging or any doubt on lung/bone uptake were submitted to additional exams to exclude another non-thyroid tumor. Of the 655 patients, 14.3% had pulmonary and 4.4% bone metastases. There was a significant difference in ps-Tg levels between patients with and without metastases (P<0.001). The cutoff value of ps-Tg was 117.5 ng/mL (sensitivity: 70.2%; specificity: 71.7%) for those with lung metastasis, and 150.5 ng/mL (sensitivity: 79.3%; specificity: 85%) for those with bone metastasis. The cutoff value for patients with eitherpulmonary or bone metastasis was 117.5 ng/mL (sensitivity: 70.2%; specificity: 83.7%). Our findings demonstrated that ps-Tg could predict distant metastasis in DTC patients. We identified a cutoff of 117.5 ng/mL with a high negative predictive value of 93.7%.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Thyroid Neoplasms/surgery , Thyroglobulin , Brazil , Iodine Radioisotopes , Neoplasm Recurrence, LocalABSTRACT
Introducción: Una serie de breves periodos de isquemias a distancia pueden limitar el daño miocárdico producido por la isquemia/reperfusión. Objetivo: Analizar las diferencias entre los dos grupos (control y estudio) teniendo en cuanta el consumo de inotrópicos y/o vasopresores durante los períodos intra y posoperatorio, así como, incidencia de eventos adversos cardiacos mayores y mortalidad en el postoperatorio. Métodos: Se realizó un estudio cuasiexperimental, explicativo, comparativo con control histórico, en dos grupos de 247 pacientes, propuestos para revascularización coronaria. Se colocó un torniquete en el brazo derecho, en el grupo estudio, alternando 3 insuflaciones con 3 desinsuflaciones con una presión de 200 mmHg, manteniéndola 5 min cada una. Este proceder se realizó previo, durante y después del evento isquémico mayor, provocado por el pinzamiento de la arteria coronaria. Resultados: Se logró una disminución significativa del consumo de drogas inotrópicas y vasoactivas. Se comprobó además, la disminución en la incidencia de bajo gasto cardiaco reversible, fibrilación ventricular, nuevo infarto agudo de miocardio. Conclusiones: El condicionamiento isquémico a distancia es una importante herramienta a tener en cuenta para la protección cardiaca perioperatoria en la revascularización coronaria(AU)
Introduction: A series of brief distant ischemia periods can limit myocardial damage produced by ischemia or reperfusion. Objective: To analyze the differences between the two groups (control and study) taking into account the consumption of inotropics and/or vasopressors during the intraoperative and postoperative periods, as well as the incidence of major cardiac adverse events and mortality in the postoperative period. Methods: A quasiexperimental, explanatory and comparative study with historical control was conducted on two groups of 247 patients proposed for coronary revascularization. A tourniquet was placed to the right arm, in the study group, alternating three insufflations with three dessufflations with a pressure of 200 mmHg, keeping each for five minutes. This procedure was performed before, during and after the major ischemic event, caused by pinching of the coronary artery. Results: A significant decrease in the consumption of inotropic and vasoactive drugs was achieved. The decrease in the incidence of low reversible cardiac output, ventricular fibrillation, and new acute myocardial infarction was also proven. Conclusions: Distant ischemic conditioning is an important tool to be taken into account for perioperative cardiac protection in coronary revascularization(AU)
Subject(s)
Humans , Myocardial Reperfusion , Ischemic Postconditioning/methods , Ischemia/prevention & control , Myocardial Revascularization/methods , Perioperative Care/methods , Non-Randomized Controlled Trials as TopicABSTRACT
Background: Scalp wound closure requires good understanding of scalp anatomy, knowledge of a algorithm for reconstruction ofscalp defects, good planning, adequate debridement, proper execution and proper post-operative care. Aim and objective: Theaim of the study was to use a simple algorithm to reconstruct scalp defects of various sizes and to study the efficacy of thealgorithm in reconstruction of scalp defects. Materials and Methods: All patients with scalp defect who presented to theDepartment of Burns Plastic and Reconstructive surgery at Kilpauk government medical college were studied. Reconstructionof scalp defect was planned based on the algorithm. All patients were followed up for a period of 1 year post operatively.Results: The scalp defects were reconstructed based on the algorithm. Smaller defects were managed with primary closureand SSG. Larger size defects and defects without periosteum were given local or distant flap. All patients recovered well withlesser rate of complications. Conclusion: Reconstruction of scalp defect is made easy with the use of the algorithm for choiceof treatment based on the defect size.
ABSTRACT
Background: One particular cause of death from breast cancer is distant metastasis. In this study, we calculate and compare diagnostic value of Mitotic Activity Index (MAI) and Ki-67 expression in predicting distant metastasis.Methods: Study was conducted in Sanglah Hospital from January 2017 to February 2019. All histopathology results from open biopsy are examined, thus MAI and Ki-67 values were obtained. We divided this into 2 groups: MAI high (≥20/HPF), low (<20/HPF) and Ki-67 high (≥20%) and low (<20%). We compared with distant metastasis event as gold standard, obtained from radiology examination. We count all diagnostic characteristics (sensitivity, specificity, positive and negative predictive value, accuracy, and likelihood ratio). We compared these diagnostic validities from data area under curve (AUC) with p value <0.005 considered to be statistically significant.Results: A total of 173 breast cancer patients were participated in this study, 92 of them had distant metastasis (53.2%) and 81 patients didn’t have any distant metastasis (46.8%). MAI had relative high specificity (82.7%) and Ki-67 had fair sensitivity values (69.6%). There are 0.08 point AUC differences between these two variables. With p value higher than 0.05 (0.06), it can be summarized that these two variables are not different significantly and statistically.Conclusions: There is not any statistically significant difference between these two markers in predicting distant metastasis in breast cancer. We hope other researcher interest into exploring more about these markers and their function.
ABSTRACT
Introducción La quimioterapia neoadyuvante (qtn) es el tratamiento inicial para pacientes con tumores localmente avanzados, permitiendo la evaluación de la sensibilidad in vivo a los agentes antineoplásicos y la planificación de estrategias quirúrgicas con resultados cosméticos favorables. Objetivos Comparar la tasa de respuesta patológica completa (pcr), la tasa de conversión a cirugía conservadora (tccc), el tiempo a la recaída a distancia (trad) y la supervivencia libre de enfermedad a distancia (sled) a 60 meses en pacientes con cáncer de mama Estadio III que fueron tratadas con qtn antes y después del año 2007 Material y método Se trata de un estudio observacional de cohortes retrospectivo en el que se analizaron registros de pacientes con cáncer de mama Estadio III operadas entre 1987 y 2016 que hubieran realizado qtn . Se constituyeron dos cohortes: en la primera se reunieron pacientes tratadas entre 1987 y 2006; en la segunda se agruparon aquellas tratadas entre 2007 y 2016. Se estableció esta diferencia dado que a partir de 2007 hubo cambios en la modalidad terapéutica: se administró la quimioterapia en forma continua antes de la cirugía y se introdujeron los taxanos y la terapia anti-her2 neu en los esquemas de qtn . En total se registraron 202 pacientes, 146 pertenecientes a la primera cohorte y 56 pertenecientes a la segunda. La mediana de edad y el tamaño tumoral fueron similares entre ambos grupos, mientras que en el segundo grupo observamos mayor porcentaje de tumores Grado 3 y mayor carga tumoral axilar. Resultados La tasa de pcr fue del 2% (n=3) para el primer grupo y de 13% (n=7) para el segundo (p=0,0022). La tasa de conversión a cirugía conservadora fue del 27% (n=20) para el primer grupo y del 41% (n=17) para el segundo, observándose un 14% más de cirugías conservadoras en este último (p=0,11). La mediana de trad fue de 33 meses para el primer grupo y de 46,5 meses para el segundo (p=0,044). La sled a 60 meses fue del 58% vs el 74% para el primer y segundo grupo respectivamente (p=0,039). Conclusiones Los cambios en la modalidad terapéutica en qtn en nuestra práctica se tradujeron en mayores tasas de pcr, mayor porcentaje de conversión a cirugía conservadora, mayor tiempo a la recidiva a distancia y mayor supervivencia libre de enfermedad a distancia
Introduction Neoadjuvant chemotherapy is the standard of care for patients with locally advanced breast cancer, allowing surgical planning with favorable cosmetic outcome and evaluation of in vivo response to antineoplastic agents. Objectives To compare pathologic complete response, breast conserving surgery conversion rates, time to distant relapse and distant recurrence free survival after 60 months in patients with Stage III breast cancer who received neoadjuvant chemotherapy before and after year 2007. Materials and method Observational retrospective cohort study analizing database and medical records of patients with Stage III breast cancer who had surgery after neoadjuvant therapy between 1987 and 2016. We divided the population into two cohorts, one with patients treated between 1987 and 2006, and another one with those ones treated between 2007 and 2016. We established that difference given that from 2007 and onwards there were major changes in treatment modality: chemotherapy was administered completely before surgery, and Taxane-containing regimens as well as Anti-her2 therapies were included. We registered 202 patients, 146 in the first group and 56 in the second. While median of age and tumor size were similar between groups, axillary tumor burden and histologic grade were higher in the second group. Results Pathologic complete response rate was 2% for the first group and 13% for the second (p=0.0022). Breast conserving surgery conversion rates were 27% vs 41%, with 14% more breast conserving surgeries in the second cohort. Median time to distant recurrence was 33 months vs 46.5 months (p=0.044) and distant recurrence free survival was 58% vs 74% (p=0.039) for groups 1 and two 2 respectively. Conclusions Changes in treatment modality in our practice resulted in better pcr outcomes, more breast conserving surgery conversion rates, longer time to distant relapse and a better distant recurrence free survival