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1.
BMC Cancer ; 21(1): 23, 2021 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-33402130

RESUMEN

BACKGROUND: Preoperative chemoradiotherapy (CRT), the current standard of care for locally advanced rectal cancer (LARC), is associated with many radiotherapy (RT)-related side effects. We aimed to evaluate whether S-1 and oxaliplatin (SOX) or folinic acid, 5-FU, and oxaliplatin (mFOLFOX6) can be as effective as neoadjuvant chemotherapy (NAC) regimens for LARC without RT. METHODS: Patients with untreated resectable LARC were randomly assigned to receive SOX or mFOLFOX6. The NAC protocol period was 3 months. The primary endpoint was 3-year disease-free survival (DFS), and the secondary endpoints included pathological effects, surgical completion rate, 3-year survival, and safety. RESULTS: From September 2013 to October 2015, 56 and 54 patients were enrolled in the SOX and mFOLFOX6 arms, respectively. The 3-year DFS rates were 69.4% (95% confidence interval [CI] 54.9-83.6) and 73.4% (95% CI 58.7-83.6) in the SOX and mFOLFOX6 arms, respectively; no significant differences were found between the arms (log-rank test; P = 0.5315, hazard ratio: 0.808, 95% CI 0.414-1.578). The 3-year survival rates were 92.3 and 91.8% in the SOX and mFOLFOX6 arms, respectively. The surgical completion rate was 98.1% overall, 100% in the SOX arm, and 96.0% in the mFOLFOX6 arm. The incidences of pathological response rates ≥grade 1b were 41.5 and 43.8% in the SOX and mFOLFOX6 arms, respectively. Both treatments were manageable and tolerable. CONCLUSION: We demonstrated the effectiveness and safety of SOX and mFOLFOX6, both of which may be new neoadjuvant treatment candidates in previously untreated LARC cases. TRIAL REGISTRATION: Date of enrolment of the first participant to the trial: 3rd Oct 2013; This study was registered in the UMIN clinical trials registry on 14th Aug, 2013. (Prospectively registered, UMIN-CTR number UMIN000011486). https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr.cgi?function=brows&recptno=R000013441&language=J.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Quimioterapia Adyuvante/mortalidad , Terapia Neoadyuvante/mortalidad , Neoplasias del Recto/tratamiento farmacológico , Adenocarcinoma/patología , Adulto , Anciano , Combinación de Medicamentos , Femenino , Fluorouracilo/administración & dosificación , Estudios de Seguimiento , Humanos , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Oxaliplatino/administración & dosificación , Ácido Oxónico/administración & dosificación , Pronóstico , Neoplasias del Recto/patología , Tasa de Supervivencia , Tegafur/administración & dosificación
2.
J Contemp Dent Pract ; 19(1): 117-122, 2018 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-29358547

RESUMEN

INTRODUCTION: Displacement of provisional fixed prostheses may result in undesirable and embarrassing outcomes in dental treatments, especially in endodontic treatment. Development of certain counter measures has been necessary to avoid such discomforts. AIM: The aim of this report was to propose a pre-endodontic post and core technique to achieve smooth progress of the treatment. MATERIALS AND METHODS: The patient was a 59-year-old male diagnosed with an infraocclusion caused by wear of his teeth. He received full mouth provisional fixed restorations for a complete oral rehabilitation. Displacement and fracture of the restorations frequently occurred during the observation period for the function of the restorations. Therefore, the pre-endodontic post and core technique was applied to the abutment teeth before their endodontic treatments were started. The technique consisted of three steps as follows: Step 1: Caries removal and dowel preparation were performed for the abutment teeth having apical periodontitis. Composite cores were indirectly fabricated, which had access holes for endodontic treatment. Step 2: The cores were bonded to the teeth. In endodontic treatment, rubber dam appliances were easily placed owing to the core, and proper tooth isolation was accomplished. Step 3: Fiberposts were bonded to the dowel holes through the access holes after the root canal filling. During endodontic treatment, displacement and/or fracture of the provisional restorations did not occur. CONCLUSION: The pre-endodontic post and core technique was effective in obtaining improved retention of provisional restoration, appropriate isolation for endodontic treatment, and sufficient retention of the post and core. CLINICAL SIGNIFICANCE: The pre-endodontic post and core technique is useful for avoiding the discomforts in dental treatments, namely, a smooth transition from endodontic to prosthodontic treatment can be achieved.


Asunto(s)
Restauración Dental Permanente , Restauración Dental Provisional , Técnica de Perno Muñón , Prostodoncia/métodos , Tratamiento del Conducto Radicular/métodos , Humanos , Masculino , Persona de Mediana Edad
4.
J Anus Rectum Colon ; 8(1): 18-23, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38313747

RESUMEN

Objectives: Stoma outlet obstruction (SOO) occurs with an incidence of approximately 40% after proctocolectomy for Ulcerative colitis (UC) with diverting ileostomy. This study aimed to identify the risk factors for SOO after proctocolectomy with diverting ileostomy for patients with UC. Methods: We reviewed the data of 68 patients with UC who underwent proctocolectomy and diverting ileostomy between April 2006 and September 2021. These cases were analyzed on the basis of clinicopathological and anatomical factors. SOO was defined as small bowel obstruction displaying symptoms of intestinal obstruction, such as abdominal distention, abdominal pain, insertion of a tube through the stoma. Results: The study included 38 (56%) men and 30 (44%) women with a median age of 42 years (range, 21-80). SOO categorized as at least Clavien-Dindo grade II occurred in 11 (16%) patients. Six patients required earlier stoma closure than scheduled. Compared with patients without SOO, patients with SOO had a significantly higher total steroid dose from the onset of UC to surgery (p = 0.02), a small amount of intraabdominal fat (p = 0.04), and a higher rate of laparoscopic surgery (p < 0.01). Conclusions: A high preoperative steroid dose, a small amount of intraabdominal fat and laparoscopic surgery were identified as risk factors for SOO. Early detection and treatment for SOO are important for patients at risk.

5.
Eur J Surg Oncol ; 50(10): 108538, 2024 Jul 14.
Artículo en Inglés | MEDLINE | ID: mdl-39053042

RESUMEN

OBJECTIVE: To investigate whether robotic surgery (RS) decreases the risk of circumferential resection margin (CRM) positivity compared with conventional laparoscopic surgery (LS) in patients with rectal cancer (RC) undergoing mesorectal excision (ME). BACKGROUND: Although it is well known that CRM positivity affects postoperative outcomes in patients with RC undergoing ME, few studies have investigated whether RS is superior to conventional LS for the risk of CRM positivity. METHODS: We performed a comprehensive electronic search of the literature up to December 2022 to identify studies that compared the risk of CRM positivity between patients with RC undergoing robotic and conventional laparoscopic surgery. A meta-analysis was performed using random-effects models to calculate risk ratios (RRs) and 95 % confidence intervals (CIs), and heterogeneity was analyzed using I2 statistics. RESULTS: Eighteen studies, consisting of 4 randomized controlled trials (RCTs) and 14 propensity score matching (PSM) studies, involved a total of 9203 patients with RC who underwent ME were included in this meta-analysis. The results demonstrated that RS decreased the overall risk of CRM positivity (RR, 0.82; 95 % CI, 0.73-0.92; P = 0.001; I2 = 0 %) compared with conventional LS. Results of a meta-analysis of the 4 selected RCTs also showed that RS decreased the risk of CRM positivity (RR, 0.62; 95 % CI, 0.43-0.91; P = 0.01; I2 = 0 %) compared with conventional LS. CONCLUSIONS: This meta-analysis revealed that RS is associated with a decreased risk of CRM positivity compared with conventional LS in patients with RC undergoing ME.

6.
J Gastrointest Surg ; 28(4): 548-558, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38583909

RESUMEN

BACKGROUND: Although several recent meta-analyses have investigated the clinical influence of the addition of lateral lymph node dissection (LLND) on oncologic outcomes in patients with mid-low rectal cancer (RC) undergoing mesorectal excision (ME), most studies included in such meta-analyses were retrospectively designed. Therefore, this study aimed to explore the clinical influence of prophylactic LLND on oncologic outcomes in patients with mid-low RC undergoing ME. METHODS: A comprehensive electronic search of the literature up to July 2022 was performed to identify studies that compared oncologic outcomes between patients with mid-low RC undergoing ME who underwent LLND and patients with mid-low RC undergoing ME who did not undergo LLND. A meta-analysis was performed using fixed-effects models and the generic inverse variance method to calculate hazard ratios (HRs) and 95% CIs, and heterogeneity was analyzed using I2 statistics. RESULTS: A total of 6 studies, consisting of 3 randomized and 3 propensity score matching studies, were included in this meta-analysis. The results of the meta-analysis of 2 randomized studies demonstrated no significant effect of prophylactic LLND on improving oncologic outcomes concerning overall survival (OS) (HR, 1.22; 95% CI, 0.89-1.69; I2 = 0%; P = .22) and relapse-free survival (RFS) (HR, 1.03; 95% CI, 0.81-1.31; I2 = 28%; P = .83). CONCLUSION: The results of this meta-analysis revealed no significant influence of prophylactic LLND on oncologic outcomes-OS and RFS-in patients with mid-low RC who underwent ME.


Asunto(s)
Escisión del Ganglio Linfático , Recurrencia Local de Neoplasia , Neoplasias del Recto , Humanos , Escisión del Ganglio Linfático/métodos , Ganglios Linfáticos/cirugía , Ganglios Linfáticos/patología , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Neoplasias del Recto/patología , Resultado del Tratamiento
7.
Hepatogastroenterology ; 60(124): 653-8, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23159387

RESUMEN

BACKGROUND/AIMS: Mortality rates due to gastric cancer are high in Japan. To improve patient prognosis, new biomarkers for diagnosis and treatment are urgently required. In this study we investigated the role of CD24, a cell adhesion glycoprotein implicated in tumor cell proliferation, which is used as a prognostic marker in various cancers. METHODOLOGY: We analyzed CD24 expression in 173 gastric adenocarcinomas by immunohistochemistry and compared the data with clinicopathological parameters and patient overall survival. Furthermore, we performed Western blotting analysis of CD24 in six human gastric adenocarcinoma cell lines, Kato III, MKN1, MKN28, MKN45, MKN74, and HGC-27. RESULTS: CD24 up-regulation was significantly correlated with depth of invasion (p=0.005) and pathological high stages (p=0.043). We observed a relationship between high CD24 expression and lymph node metastasis, venous invasion and lymphatic invasion. CD24 expression tended to be higher in cell lines derived from differentiated gastric carcinoma, including those derived from lymph node metastasis. CONCLUSIONS: Our study suggests that gastric cancer patients with high CD24 expression should be closely monitored for recurrence following resections. CD24 expression is a potential biomarker for gastric cancer prognosis and provides a new molecular target for therapeutic strategies.


Asunto(s)
Adenocarcinoma/metabolismo , Antígeno CD24/metabolismo , Neoplasias Gástricas/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor/metabolismo , Western Blotting , Línea Celular Tumoral , Progresión de la Enfermedad , Femenino , Humanos , Técnicas para Inmunoenzimas , Japón , Metástasis Linfática , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Neoplasias Gástricas/patología , Tasa de Supervivencia
8.
Surg Oncol ; 50: 101972, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37481917

RESUMEN

OBJECTIVE: To explore the influence of the no-touch isolation technique (NTIT) on oncologic outcomes for patients with colon cancer (CC) undergoing curative surgery. BACKGROUND: Although several studies have investigated this topic, there have been no meta-analyses exploring the influence of NTIT on oncologic outcomes for these patients. METHODS: We performed a comprehensive electronic literature search of studies published prior to March 2022 to identify those that compared oncologic outcomes for patients with CC who did or did not undergo NTIT. We conducted a meta-analysis using a random-effects model to calculate risk ratio (RRs) and 95% confidence intervals (CIs), analyzing heterogeneity using I2 statistics. RESULTS: Four studies involving a total of 2885 patients with CC who underwent curative surgery met the inclusion criteria for this meta-analysis. The 5-year overall survival (OS) rate was 76.6% for patients with CC who underwent NTIT and 77.2% for those who did not. A meta-analysis of the 3 studies that reported 5-year OS revealed no significant difference between groups (RR, 0.84; 95% CI, 0.62-1.16; P = 0.30; I2 = 70%). In addition, there were no significant differences in 5-year recurrence-free survival (RR, 1.17; 95% CI, 0.93-1.48; P = 0.19; I2 = 45%), and 5-year liver recurrence-free survival (RR, 0.95; 95% CI 0.62, 1.46; P = 0.82; I2 = 65%). CONCLUSIONS: The use of NTIT has no significant influence on oncologic outcomes for patients with CC undergoing curative surgery.


Asunto(s)
Neoplasias del Colon , Humanos , Neoplasias del Colon/cirugía
9.
Gen Thorac Cardiovasc Surg ; 71(10): 584-590, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37060435

RESUMEN

OBJECTIVE: Treatment for borderline resectable (cT3br) esophageal squamous cell carcinoma (SCC) is currently undefined. This study aimed to analyze the outcome of treatment strategies including induction chemotherapy with docetaxel, cisplatin, and 5-fluorouracil (DCF) against T3br esophageal SCC. METHODS: A total of 32 patients with cT3br esophageal SCC enrolled in this study were treated with two cycles of DCF induction therapy. RESULTS: The overall response rate to DCF induction therapy was 62.5%, while the disease control rate was 93.8% (complete response (CR), three; partial response (PR), 17; stable disease (SD), 10; progressive disease (PD), 2). After DCF induction chemotherapy, 27 patients underwent conversion surgery (CS) and five patients underwent definitive chemoradiotherapy (CRT). Out of 27 patients who underwent CS, 17 underwent transthoracic esophagectomy and 10 underwent thoracoscopic esophagectomy. Anastomotic leakage occurred in five patients (18.5%) and pneumonia in four (14.8%). Recurrent laryngeal nerve paralysis and arrhythmia were observed in two patients (7.4%). The R0 resection rate was 81.5%. Among the five patients who underwent definitive CRT, only one patient (20.0%) achieved CR. Two patients (40.0%) had PR and two (40.0%) had PD. Salvage esophagectomy was performed in one patient after definitive CRT. The 1-, 3-, and 5-year overall survival rates were 75.0, 50.6, and 46.4%, respectively, whereas the 1-, 3-, and 5-year disease-free survival rates were 54.9, 38.8, and 38.8%, respectively. CONCLUSION: DCF induction therapy and subsequent CS or definitive CRT are promising treatment strategies for cT3br esophageal SCC.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Humanos , Carcinoma de Células Escamosas de Esófago/tratamiento farmacológico , Carcinoma de Células Escamosas de Esófago/patología , Cisplatino , Docetaxel/uso terapéutico , Fluorouracilo/uso terapéutico , Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/cirugía , Quimioterapia de Inducción , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Esofagectomía/efectos adversos , Resultado del Tratamiento
10.
Asian J Endosc Surg ; 16(2): 293-296, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36375812

RESUMEN

Minimally invasive surgeries have been developed, not only for gastrointestinal cancer, but also for benign or emergency cases. We report the case of a 62-year-old male who underwent laparoscopic and thoracoscopic combined surgery for an esophago-mediastinal fistula caused by a press-through package. In the initial laparoscopic phase, transhiatal dissection of the lower thoracic esophagus and harvesting of the greater omentum were performed. In the thoracoscopic phase, resection of the fistula and esophageal wall closure were performed. Thereafter, the greater omentum was lifted via the esophageal hiatus and wrapped around the repaired part of the esophagus for reinforcement. The total operative time was 371 min, with 163 and 208 min for the laparoscopic and thoracoscopic phases, respectively. In total, 20 ml of blood was lost. No perioperative complications or recurrences were observed. Laparoscopic and thoracoscopic combined omentoplasty was effective for refractory esophago-mediastinal fistula.


Asunto(s)
Neoplasias Esofágicas , Laparoscopía , Masculino , Humanos , Persona de Mediana Edad , Neoplasias Esofágicas/cirugía , Esofagectomía , Toracoscopía
11.
J Prosthodont Res ; 66(1): 176-183, 2022 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-34321371

RESUMEN

PURPOSE: The purpose of this study was to examine the wear of resin materials using two-body wear tests and to verify a selection method for optimal interim restoration materials from findings of a diagnostic occlusal device. METHODS: Specimens were prepared from nine different resins used for diagnostic occlusal devices (soft resin) and interim restorations. Wear tests were conducted using an abrasion testing machine. The resulting wear on resin specimens and antagonist stainless-steel styluses was measured using a laser confocal scanning microscope, and the surface conditions were observed through a scanning electron microscope. The data were analyzed with one-way ANOVA and Tukey's multiple comparison test. The findings of the previous study on diagnostic occlusal devices were referred to in order to verify the selection method of optimal interim restoration materials. RESULTS: The maximum wear depth of the soft resin specimens was significantly greater than that of the other specimens (p<0.05) and was equivalent to the wear depth of a diagnostic occlusal device used for 14 nights. The wear of bis-acryl resin material was shallower than that of the other materials (Polymethyl methacrylate and polyethyl methacrylate), and its antagonist stylus was significantly worn (p<0.05). CONCLUSION: The findings of the previous and present studies showed a relationship among the parameters of Electromyography, wear depth of the diagnostic occlusal device, and wear of materials used for interim restorations. Findings related to bruxism can guide in the selection of interim restoration material and the determination of a suitable duration of wear.


Asunto(s)
Resinas Compuestas , Alisadura de la Restauración Dental , Materiales Dentales , Ensayo de Materiales , Propiedades de Superficie
12.
Anticancer Res ; 42(7): 3725-3733, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-35790261

RESUMEN

BACKGROUND/AIM: This study analyzed the outcomes of docetaxel, cisplatin, and 5-fluorouracil (DCF) therapy and DCF plus concurrent radiotherapy (DCF-RT), both followed by conversion surgery, if possible, in patients with cT4b esophageal cancer. PATIENTS AND METHODS: Forty-six patients with cT4b esophageal cancer, including borderline cT4b lesions, were eligible. Borderline cT4b lesions were treated with induction DCF therapy. For definitive cT4b lesions, definitive DCF-RT was administered. Patients unsuitable for induction DCF therapy or DCF-RT were treated with other therapies. After treatment, conversion surgery (CS) was performed for the residual tumor in resectable cases. RESULTS: Induction DCF therapy was administered to 12 patients (group A), and DCF-RT was provided to 18 patients (group B). Meanwhile, other therapies were provided to 16 patients (group C). The 1-, 3-, and 5-year overall survival (OS) rates were 66.7, 30.0, and 15.0%, respectively, in group A; 66.7, 37.5, and 37.5%, respectively, in group B; and 62.5, 0, and 0%, respectively, in group C. DCF-RT tended to prolong survival, albeit without significance (p=0.1040). The group A + B had significantly better overall survival than group C (p=0.0437). Fourteen patients underwent CS (30.4%), and patients who underwent CS had significantly better overall survival than those who did not undergo surgery (p=0.0291). CONCLUSION: Induction DCF or DCF-RT is promising for the treatment of cT4b esophageal cancer. Effective CS including combined resection of the invaded organ can contribute to improved therapeutic outcomes.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Cisplatino , Docetaxel , Neoplasias Esofágicas/tratamiento farmacológico , Carcinoma de Células Escamosas de Esófago/tratamiento farmacológico , Fluorouracilo , Humanos , Translocación Genética
13.
Ann Gastroenterol Surg ; 6(1): 75-82, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35106417

RESUMEN

BACKGROUND: Anastomotic disorder of the reconstructed gastric conduit is a life-threating morbidity after thoracic esophagectomy. Although there are various reasons for anastomotic disorder, the present study focused on dislocation of the gastric conduit (DGC). METHODS: The study cohort comprised 149 patients who underwent transthoracic esophagectomy. The relationships between DGC and peri- and postoperative morbidities were analyzed retrospectively. Data were analyzed to determine whether body mass index (BMI) and extension of the gastric conduit were related to DGC. Uni- and multivariate Cox regression analyses were performed to identify the factors associated with anastomotic disorder. RESULTS: DGC was significantly related to anastomotic leakage (P < .001), anastomotic stricture (P = .018), and mediastinal abscess/empyema (P = .031). Compared with the DGC-negative group, the DGC-positive group had a significantly larger mean preoperative BMI (23.01 ± 3.26 kg/m2 vs. 21.22 ± 3.13 kg/m2, P = .001) and mean maximum cross-sectional area of the gastric conduit (1024.75 ± 550.43 mm2 vs. 619.46 ± 263.70 mm2, P < .001). Multivariate analysis revealed that DGC was an independent risk factor for anastomotic leakage (odds ratio: 4.840, 95% confidence interval: 1.770-13.30, P < .001). Body weight recovery tended to be better in the DGC-negative group than in the DGC-positive group, although this intergroup difference was not significant. CONCLUSION: DGC reconstructed via the posterior mediastinal route is a significant cause of critical morbidities related to anastomosis. In particular, care is required when performing gastric conduit reconstruction via the posterior mediastinal route in patients with a high BMI.

14.
Anticancer Res ; 41(7): 3401-3407, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34230135

RESUMEN

BACKGROUND/AIM: Plakophilin 1 (PKP1) expression is inversely related to cancer grade. This study aimed to evaluate whether PKP1 is a prognostic marker for esophageal cancer (EC). MATERIALS AND METHODS: We tested immunohistochemically for PKP1 in squamous cell carcinoma EC specimens from 99 patients, including cytoplasmic (C), membrane (M), and nuclear (N) cellular areas, and analyzed their relationships with clinicopathological factors. RESULTS: PKP1stains were stratified into strong and weak for all three cellular areas. Staining was inversely related to tumor depth (C: p=0.002, M: p=0.00007, N: p=0.02), lymph node metastasis (C: p=0.003, M: p=0.001, N: p=0.004) and pathological stage (C: p=0.0004, M: p=0.0001, N: p=0.006). Cytoplasmic and membrane staining were inversely related to vessel invasion. Patients with strong C stain had a better overall survival than those with weak C stains (p=0.01). Disease-free survival of patients with strong M stains was better than that of those with weak staining (p=0.01). CONCLUSION: Cytoplasmic and membrane PKP1 expression is a possible prognostic marker for EC.


Asunto(s)
Neoplasias Esofágicas/metabolismo , Neoplasias Esofágicas/patología , Placofilinas/metabolismo , Anciano , Núcleo Celular/metabolismo , Núcleo Celular/patología , Citoplasma/metabolismo , Citoplasma/patología , Supervivencia sin Enfermedad , Carcinoma de Células Escamosas de Esófago/metabolismo , Carcinoma de Células Escamosas de Esófago/patología , Femenino , Regulación Neoplásica de la Expresión Génica/fisiología , Humanos , Metástasis Linfática/patología , Masculino , Pronóstico
15.
J Mech Behav Biomed Mater ; 123: 104711, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34385067

RESUMEN

The objective of this study was to compare the changes in the residual stresses present on the surface of leucite-reinforced dental ceramic restorations luted with a self-adhesive and a conventional resin composite cement during aging in water. Ring specimens made of a leucite-reinforced ceramics were luted to ceramic cylinders using a self-adhesive (Panavia SA Luting Plus) or a conventional resin composite cement (Panavia V5) in dual-cure or self-cure mode. Residual stresses on the ring surface were measured using indentation fracture method at 1 h, 1, 3, 7, 14 and 28 days of the 37 °C water immersion. Water sorption, water solubility and elastic modulus of the cements were also measured. Compressive stress was generated on the surface of the ceramic rings by the polymerization of the resin composite cements, and the stresses appeared to decrease over time by water sorption of the cements. The dual-cured conventional resin composite cement remained compressive stresses on the ceramic surface, while only the self-cured self-adhesive cement, which demonstrated the greatest water sorption, generated tensile stresses during the four weeks of aging in water. The elastic moduli of cements did not significantly change through the immersion, suggesting that the stresses were less affected by the modulus. To prevent the generation of tensile stresses on the leucite-reinforced ceramic restoration, self-adhesive cements exhibiting small water sorption should be clinically selected.


Asunto(s)
Recubrimiento Dental Adhesivo , Cementos de Resina , Silicatos de Aluminio , Cerámica , Resinas Compuestas , Cementos Dentales , Ensayo de Materiales , Propiedades de Superficie , Agua
16.
Anticancer Res ; 41(6): 3131-3137, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34083307

RESUMEN

BACKGROUND/AIM: Our multicenter phase II TAS-CC3 study demonstrated favorable median progression-free survival (PFS) and overall survival (OS) of 32 metastatic colorectal cancer (mCRC) patients treated with TAS-102 + bevacizumab as 3rd-line treatment. PATIENTS AND METHODS: We investigated the predictive and prognostic values of pre-treatment blood inflammation-based scores, including the neutrophil-to-lymphocyte (NLR), platelet-to-lymphocyte (PLR) and lymphocyte-to-monocyte ratio (LMR) on disease-control (DC), PFS and OS by a post-hoc analysis. RESULTS: Receiver operating characteristic curve analyses of the 3 inflammation-based scores versus DC showed the best predictive performance for LMR, followed by NLR and PLR. The high-LMR group had a significantly higher DC rate than the low group (87.5 vs. 43.8%). The high-LMR group showed significantly longer survival than the low group (4.9 vs. 2.3 m for median PFS) (21.0 vs. 6.1 m for median OS). CONCLUSION: The pre-treatment LMR is a valid predictive and prognostic biomarker for mCRC patients undergoing TAS-102 and bevacizumab treatment.


Asunto(s)
Antineoplásicos Inmunológicos/uso terapéutico , Bevacizumab/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Linfocitos/patología , Monocitos/patología , Metástasis de la Neoplasia/tratamiento farmacológico , Pirrolidinas/uso terapéutico , Timina/uso terapéutico , Trifluridina/uso terapéutico , Anciano , Antineoplásicos Inmunológicos/administración & dosificación , Bevacizumab/administración & dosificación , Neoplasias Colorrectales/patología , Combinación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pirrolidinas/administración & dosificación , Timina/administración & dosificación , Trifluridina/administración & dosificación
17.
J Indian Prosthodont Soc ; 10(1): 57-63, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23204723

RESUMEN

BACKGROUND: Oral appliance (OA) therapy for obstructive sleep apnea (OSA) has only been part of Japan's National Health care coverage plan since 2004. Subsequently, not enough time has passed to establish the medical trends and characteristics of OSA patients in Japanese Dental Hospitals. AIM: The aim of this study was to investigate the medical trends and the characteristics in patients with OSA who visited our clinic, and to compare our findings with previous studies. SETTING AND DESIGN: Epidemiological survey (retrospective study). MATERIALS AND METHODS: Two hundred and one patients were recruited at the Internal Medicine Division in the Tsurumi University Dental Hospital from February 2006 to December 2008, consecutively. Patients received a medical interview, and a detailed sleep analysis that included a polysomnography (PSG) to verify the exact nature of their condition. The efficacy of OA was assessed in 49 patients who wore an OA and underwent PSG. RESULTS: Of all subjects, 141 patients visited the Prosthodontic Division to receive OA therapy, 38 patients were treated or received a follow up examination in the Internal Medicine Division. The dropout rate was 10.4% in the all subjects, 17.0% in patients who visited the Prosthodontic Division. The male-to-female ratio was 3.3:1, 3.0:1 in patients who visited the Prosthodontic Division. In addition, females had a lower rate of OAS severity than males. In our patients, the major complication was hypertension and cardiac disease. The success rate of OA was 75.5%. CONCLUSION: This approach allowed us to reveal some of the trends and characteristics in our patients.

18.
J Anus Rectum Colon ; 3(2): 78-83, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31559372

RESUMEN

OBJECTIVES: Previously, adjuvant chemotherapy using oxaliplatin was a standard treatment for patients with node-positive colorectal cancer (CRC) who underwent curative surgery. The factor predicting adverse events and therapeutic effect have not yet been established. METHODS: A retrospective cohort of 42 patients diagnosed with stage III CRC between April 2009 and March 2013 in our institution were included in this study. The indicators of host nutritional status were body weight (BW), body mass index (BMI), serum albumin, Onodera's prognostic nutritional index (OPNI), and Glasgow Prognostic Score (GPS). The indicators of host immunocompetence was total lymphocyte counts, total neutrophil counts, granulocytes/lymphocytes ratio (G/L ratio). RESULTS: The overall recurrence rate was 26.1%. Patients who had a recurrence were more likely to be older. The recurrence was not associated with type of regimen or adverse events. The cases with a few cumulative doses and relative dose intensity of oxaliplatin experienced significantly more recurrence. Nutritional status indicators, such as the serum albumin level, OPNI, and the modified Glasgow prognostic score (mGPS) were associated with the adjuvant chemotherapy outcome. Our study results indicated worse nutritional status induced worse disease-free survival (DFS) and more recurrence. CONCLUSION: The host's nutritional status associated with outcomes in stage III CRC patients.

19.
Int J Surg Case Rep ; 48: 10-15, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29763850

RESUMEN

INTRODUCTION: A Bochdalek hernia (BH) is a type of congenital diaphragmatic hernia. We herein describe an adult woman with a BH triggered by pregnancy and treated by laparoscopic surgery. PRESENTATION OF CASE: A 26-year-old woman was referred to our hospital because of abdominal pain and dyspnea resulting from a left diaphragmatic hernia. She was diagnosed with a BH and underwent laparoscopic surgery. Her postoperative progress was satisfactory, and no recurrence was found at follow-up approximately 1 year later. DISCUSSION: A recently published study reviewing detailed cases of laparoscopic and/or thoracoscopic repair of adult BH from 1999 to 2016 identified 30 cases. A laparoscopic approach for treatment of BH has recently attracted increasing interest. CONCLUSION: Laparoscopic surgery can be safely performed on adults with BH without complications.

20.
Anticancer Res ; 38(2): 911-918, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29374720

RESUMEN

BACKGROUND/AIM: The purpose of this study was to identify adverse prognostic factors for patients with advanced esophageal cancer undergoing chemotherapy with docetaxel, cisplatin and 5-fluorouracil (DCF). PATIENTS AND METHODS: The study cohort comprised of 45 patients with advanced esophageal cancer who underwent induction DCF therapy followed by esophagectomy or chemoradiotherapy. Treatment outcomes and factors affecting early recurrence and death were analyzed. RESULTS: Overall 3-year survival was 61.4%, and 3-year disease-free survival was 44.7%. Clinically evident lymph node metastasis and clinical stage were associated with recurrence within 1 year and death within 2 years. Low maximum standardized uptake value (SUVmax) after induction DCF therapy and small decreases in SUVmax from pre- to post-DCF therapy were also predictors of recurrence and poor prognosis. CONCLUSION: Induction DCF therapy may be ineffective for advanced-stage esophageal cancer and clinical lymph node metastasis (≥N2, ≥stage IIIB). Moreover, small decreases in SUVmax DCF therapy are associated with early disease relapse and death.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Esofágicas/tratamiento farmacológico , Anciano , Cisplatino/administración & dosificación , Estudios de Cohortes , Supervivencia sin Enfermedad , Docetaxel , Neoplasias Esofágicas/patología , Femenino , Fluorouracilo/administración & dosificación , Humanos , Quimioterapia de Inducción , Metástasis Linfática , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Taxoides/administración & dosificación
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