scholarly journals Long-term survival of cultivated oral mucosal epithelial cells in human cornea: generating cell sheets using an animal product-free culture protocol

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
David Hui-Kang Ma ◽  
Yi-Jen Hsueh ◽  
Kevin Sheng-Kai Ma ◽  
Yueh-Ju Tsai ◽  
Shiang-Fu Huang ◽  
...  

AbstractPreviously, we reported a collagenase-based, animal product-free protocol for cultivated oral mucosal epithelial cell sheets for transplantation (COMET). Here, we reported the long-term outcomes of first 2 clinical cases. A 27-year-old man suffered from thermal burn, which resulted in symblepharon of lower fornix OD. COMET was performed, and the cornea remained clear with few peripheral NV and no more symblepharon 34 months postoperatively. Another 42-year-old man suffered from severe alkaline burn OD. He underwent COMET, followed by corneal transplantation half a year later. A biopsy taken two years after COMET showed stratified epithelium positive for keratin 4, 13, and 3 in the suprabasal layer. Staining for p63 and p75NTR was both positive in the basal layer. The graft remained clear up to post-OP 4 years. Our study confirmed the long-term survival of the transplanted OMECs, suggesting that collagenase-based spheroidal suspension culture is a promising technique for COMET.Trial registration ClinicalTrials.gov, ClinicalTrials.gov ID: NCT03943797 Registered 9 May 2019-Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT03943797.

2020 ◽  
Author(s):  
Yun Xu ◽  
Cong Li ◽  
Charlie Zhi-Lin Zheng ◽  
Yu-Qin Zhang ◽  
Tian-An Guo ◽  
...  

Abstract Background Lynch syndrome (LS) is the most common hereditary colorectal cancer (CRC) syndrome. Comparison of prognosis between LS and sporadic CRC (SCRC) were rare,with conflicting results. This study aimed to compare the long-term outcomes between patients with LS and SCRC. Methods Between June 2008 and September 2018, a total of 47 patients were diagnosed with LS by genetic testing at Fudan University Shanghai Cancer Center. A 1:2 propensity score matching was performed to obtain homogeneous cohorts from SCRC group. Thereafter, 94 SCRC patients were enrolled as control group. The long-term survival rates between the two groups were compared, and the prognostic factors were also analyzed. Results The 5-year OS rate of LS group was 97.6%, which was significantly higher than of 82.6% for SCRC group (p = 0.029). The 5-year PFS rate showed no significant differences between the two groups (78.0% for LS group vs. 70.6% for SCRC patients; p = 0.262). The 5-year TFS rates in LS group was 62.1% for LS patients, which were significantly lower than of 70.6% for SCRC group (p = 0.039). By multivariate analysis, we found that tumor progression of primary CRC and TNM staging were independent risk factors for OS. Conclusion LS patients have better long-term survival prognosis than SCRC patients. Strict regular follow-up monitoring, detection at earlier tumor stages, and effective treatment are key to ensuring better long-term prognosis.


2021 ◽  
Vol 34 (Supplement_1) ◽  
Author(s):  
Letícia Nogueira Datrino ◽  
Clara Lucato Santos ◽  
Guilherme Tavares ◽  
Luca Schiliró Tristão ◽  
Maria Carolina Andrade Serafim ◽  
...  

Abstract   Nowadays, there is still no consensus about the benefits of adding neck lymphadenectomy to the traditional two-fields esophagectomy. An extended lymphadenectomy could potentially increase operation time and the risks for postoperative complications. However, extended lymphadenectomy allows resection of cervical nodes at risk for metastases, potentially increasing long-term survival rates. This study aims to estimate whether cervical prophylactic lymphadenectomy for esophageal cancer influences short- and long-term outcomes through a systematic review of literature and meta-analysis. Methods A systematic review was conducted in PubMed, Embase, Cochrane Library Central, and Lilacs (BVS). The inclusion criteria were: (1) studies that compare two-field vs. three-field esophagectomy; (2) adults (>18 years); (3) articles that analyze short- or long-term outcomes; and (4) clinical trials or cohort studies. The results were summarized by forest plots, with effect size (ES) or risk difference (RD) and 95% CI. Results Twenty-five articles were selected, comprising 8,954 patients. Three-field lymphadenectomy was associated to higher operation time (ES: -1.51; 95%CI -1.84, −1.18) and higher blood loss (ES: -0.24; 95%CI: −0.37, −0.11). Also, neck lymphadenectomy inputs additional risk for pulmonary complications (RD: 0.03; 95%CI: 0.01, 0.05). No difference was noted for morbidity (RD: 0.01; 95%CI: −0.01, 0.03); leak (−0.02; 95%CI: −0.07, 0.03); postoperative mortality (RD: 0.00; 95%CI: −0.00, 0.01), and hospital stay (ES: -0.05; 95%CI -0.20, 0.10). Three-field lymphadenectomy allowed higher number of retrieved lymph nodes (MD: -1.51; 95%CI -1.84, −1.18), but did not increase the overall survival (HR: 1.11; 95%CI: 0.96, 1.26). Conclusion Prophylactic neck lymphadenectomy for esophageal cancer should be performed with caution once it is associated with poorer short-term outcomes compared to traditional two-field lymphadenectomy and does not improve long-term survival. Future esophageal cancer studies should determine the subgroup of patients who could benefit from prophylactic neck lymphadenectomy in long-term outcomes.


2019 ◽  
Vol 68 (08) ◽  
pp. 706-713
Author(s):  
Yu-Ning Hu ◽  
Chwan-Yau Luo ◽  
Meng-Ta Tsai ◽  
Ting-Wei Lin ◽  
Chung-Dann Kan ◽  
...  

Abstract Background Coronary artery bypass grafting (CABG) is frequently performed in patients with end-stage renal disease (ESRD) together with severe coronary artery disease, after which, patients with ESRD have higher surgical risk and poorer long-term outcomes. We report our experience in patients with ESRD who survived in CABG and identify predictors of long-term outcomes. Methods We retrospectively investigated 93 consecutive patients with ESRD who survived to discharge after isolated CABG between January 2005 and December 2016 at our institution. Long-term outcomes, including all-cause mortality after discharge, readmission due to major adverse cardiac events, and reintervention, were evaluated. Predictors affecting long-term outcomes were also analyzed. Results The rates of freedom from all-cause mortality after discharge in 1, 3, 5, and 10 years were 92.1, 81.3, 71.9, and 34.9%, respectively. The rates of freedom from readmission due to major adverse cardiac events in 1, 3, 5, and 10 years were 90.7, 79.1, 69.9, and 55.6%, respectively. The rates of freedom from reintervention in 1, 3, 5, and 10 years were 95.3, 86.5, 79.0, and 66.6%, respectively. Postoperative β-blocker and statin use significantly improved overall long-term survival (β-blocker, p = 0.013; statin, p = 0.009). After case–control matching, patients who received statins showed better long-term survival than those without statins. The comparison of long-term survival between patients with and without β-blockers showed no significant difference after matching. Conclusions After CABG, dialysis patients who survived to discharge had acceptable long-term overall survival. Post-CABG statin use in dialysis patients is a predictor of better long-term survival.


PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12184
Author(s):  
Yong Liu ◽  
Guangbing Li ◽  
Ziwen Lu ◽  
Tao Wang ◽  
Yang Yang ◽  
...  

Objective To evaluate the effect of vascular resection (VR), including portal vein resection (PVR) and hepatic artery resection (HAR), on short- and long-term outcomes in patients with perihilar cholangiocarcinoma (PHC). Background Resection surgery and transplantation are the main treatment methods for PHC that provide a chance of long-term survival. However, the efficacy and safety of VR, including PVR and HAR, for treating PHC remain controversial. Methods This study was registered at the International Prospective Register of Systematic Reviews (CRD42020223330). The EMBASE, PubMed, and Cochrane Library databases were used to search for eligible studies published through November 28, 2020. Studies comparing short- and long-term outcomes between patients who underwent hepatectomy with or without PVR and/or HAR were included. Random- and fixed-effects models were applied to assess the outcomes, including morbidity, mortality, and R0 resection rate, as well as the impact of PVR and HAR on long-term survival. Results Twenty-two studies including 4,091 patients were deemed eligible and included in this study. The meta-analysis showed that PVR did not increase the postoperative morbidity rate (odds ratio (OR): 1.03, 95% confidenceinterval (CI): [0.74–1.42], P = 0.88) and slightly increased the postoperative mortality rate (OR: 1.61, 95% CI [1.02–2.54], P = 0.04). HAR did not increase the postoperative morbidity rate (OR: 1.32, 95% CI [0.83–2.11], P = 0.24) and significantly increased the postoperative mortality rate (OR: 4.20, 95% CI [1.88–9.39], P = 0.0005). Neither PVR nor HAR improved the R0 resection rate (OR: 0.70, 95% CI [0.47–1.03], P = 0.07; OR: 0.77, 95% CI [0.37–1.61], P = 0.49, respectively) or long-term survival (OR: 0.52, 95% CI [0.35–0.76], P = 0.0008; OR: 0.43, 95% CI [0.32–0.57], P < 0.00001, respectively). Conclusions PVR is relatively safe and might benefit certain patients with advanced PHC in terms of long-term survival, but it is not routinely recommended. HAR results in a higher mortality rate and lower overall survival rate, with no proven benefit.


Background: The incidence of pregnancy-associated breast cancer (PABC) is increasing, especially in the developed countries. Herein, we report the long-term outcomes of PABC from a single institution in an Arab country. Methods: Consecutive patients diagnosed to have PABC between 2005 and 2012 at a tertiary referral hospital from a Gulf cooperation council country were the subjects of the study. Long-term outcomes are reported, with a minimum follow-up of 8 years. Results: A total of 16 patients were evaluable for long-term survival analysis. The median age at the time of diagnosis was 31.5 (26-40) years. Nine (56%) patients were multiparous (> 5 previous pregnancies). The mean gestational age at diagnosis was 19.7±7.4 weeks. Immunohistochemistry revealed the following phenotypes: Luminal A 3 (18.8%); HER-2 enriched 8 (50%); triple-negative 5 (31.2%). Three patients underwent modified radical mastectomy as the initial treatment, of which 2 received adjuvant chemotherapy during pregnancy. For patients who received neoadjuvant or palliative chemotherapy, the response rate was 75% (pCR 2; CR 1; PR 6). After a median follow-up of 60 months, median progression-free survival was 36 months (95%CI 24.2 to 47.8), while the overall survival was 59 months (95%CI 31.6 – 86.4). Age, marker status, Ki-67 score, clinical stage and differentiation grade did not affect the PFS or OS on univariate analysis. Conclusions: Fifty percent of the patient with PABC expressed HER-2/neu protein, and 1/3rd had triple-negative disease. The rate of response to chemotherapy, and long-term survival may help to set a benchmark for studies from the region. Larger cohort studies may help to draw firm conclusions.


2020 ◽  
Author(s):  
Marius Kryzauskas ◽  
Augustinas Bausys ◽  
Austeja Elzbieta Degutyte ◽  
Vilius Abeciunas ◽  
Eligijus Poskus ◽  
...  

Abstract Background: Anastomotic leakage (AL) significantly impairs short-term outcomes. The impact on the long-term outcomes remains unclear. This study aimed to identify the risk factors for AL and the impact on long-term survival in patients with left-sided colorectal cancer.Methods: Nine-hundred patients with left-sided colorectal carcinoma who underwent sigmoid or rectal resection were enrolled in the study. Risk factors for AL after sigmoid or rectal resection were identified and long-term outcomes of patients with and without AL were compared.Results: AL rates following sigmoid and rectal resection were 5.1% and 10.7%, respectively. Higher ASA score (III-IV; OR=10.54, p=0.007) was associated with AL in patients undergoing sigmoid surgery on multivariable analysis. Male sex (OR=2.40, p=0.004), CCI score >5 (OR=1.72, p=0.025) and T3/T4 stage tumors (OR=2.25, p=0.017) were risk factors for AL after rectal resection on multivariable analysis. AL impaired disease-free and overall survival in patients undergoing sigmoid (p=0.009 and p=0.001) and rectal (p=0.003 and p=0.014) surgery.Conclusion: ASA score of III-IV is an independent risk factor for AL after sigmoid surgery and male sex, higher CCI score, and advanced T stage are risk factors for AL after rectal surgery. AL impairs the long-term survival in patients undergoing left-sided colorectal surgery.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Kentaro Matsuo ◽  
Sang-Woong Lee ◽  
Ryo Tanaka ◽  
Yoshiro Imai ◽  
Kotaro Honda ◽  
...  

Abstract Background The incidence of remnant gastric cancer (RGC) after distal gastrectomy is 1–5%. However, as the survival rate of patients with gastric cancer improves due to early detection and treatment, more patients may develop RGC. There is no consensus on the surgical and postoperative management of RGC, and the clinicopathological characteristics correlated with the long-term outcomes remain unclear. Therefore, we investigated the clinicopathological factors associated with the long-term outcomes of RGC. Methods We included 65 consecutive patients who underwent gastrectomy for RGC from January 2000 to December 2015 at the Osaka Medical and Pharmaceutical University Hospital, Japan. The Kaplan–Meier method was used to create survival curves, and differences in survival were compared between the groups (clinical factors, pathological factors, and surgical factors) using the log-rank test. Multivariate analyses using the Cox proportional hazard model were used to identify factors associated with long-term survival. Results No significant differences were noted in the survival rate based on clinical factors (age, body mass index, diabetes mellitus, hypertension, cardiovascular disease, pulmonary complications, liver disease, diet, history of alcohol drinking, and history of smoking) or the type of remnant gastrectomy. Significant differences were noted in the survival rate based on pathological factors and surgical characteristics (intraoperative blood loss, operation time, and the number of positive lymph nodes). Multivariate analysis revealed that the T stage (hazard ratio, 5.593; 95% confidence interval [CI], 1.183–26.452; p = 0.030) and venous invasion (hazard ratio, 3.351; 95% CI, 1.030–10.903; p = 0.045) were significant independent risk factors for long-term survival in patients who underwent radical resection for RGC. Conclusions T stage and venous invasion are important prognostic factors of long-term survival after remnant gastrectomy for RGC and may be keys to managing and identifying therapeutic strategies for improving prognosis in RGC.


VASA ◽  
2015 ◽  
Vol 44 (4) ◽  
pp. 289-295
Author(s):  
Thomas Lübke ◽  
Wael Ahmad ◽  
Bijan Koushk Jalali ◽  
Jan Brunkwall

Abstract. Background: We analyses the effect of gender on short and long-term morbidity and mortality in carotid endarterectomy (CEA) under loco-regional anesthesia. Patients and methods: Patients who were entered into a prospectively compiled computerized database of unilateral, consecutive CEAs performed at our hospital from January 2000 to December 2010 were analysed. Endpoints were perioperative stroke and death, and overall long-term survival rates. Statistical analysis was used to determine the relationships between gender and outcomes after CEA. A Cox proportional hazard model was applied to determine independent risk factors for long term survival. Results: A total of 1880 CEA procedures were performed in the period between 2000 and 2010. Overall, there were 28 (1.48 %) neurological deficits according to the ipsilateral carotid supply territory, including minor and major strokes. 7 occurred in the female group (1.19 %), and 21 in the male group (1.62 %) with no significant difference between the genders (p = 0.60). No significant difference emerged between female and male patients when postoperative neurological events according to the ipsilateral carotid supply territory were stratified by linical presentation (asymptomatic ICA stenosis: p = 0.75; symptomatic ICA stenosis: p = 0.66). The late overall mortality rate was 4.1% (n = 78) and 26/78 of these late deaths occurred in the female group (33 %). Log rank analysis of Kaplan Meier curves showed no statistically significant difference in long-term survival between the groups (p = 0.74). The multivariate risk factor analysis with the Cox proportinal hazard model revealed age (p < 0.00), and smoking (p = 0,02) as independent risk factors for decreased long term survival. Conclusions: When considering short and long-term outcomes in patients receiving carotid endarterectomy in local anaesthesia gender should not be regarded as a factor on decision-making for carotid interventions in both symptomatic and asymptomatic patients.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Yujiro Yokoyama ◽  
Hisato Takagi ◽  
Toshiki Kuno

Background: Benefits and risks of minimally invasive cardiac surgery (MICS) through right mini-thoracotomy and robotic surgery for mitral valve are not fully understood. We conducted a network meta-analysis comparing the perioperative and long-term outcomes of mitral valve surgery via conventional sternotomy, MICS and robot. Methods: MEDLINE and EMBASE were searched through March 15th, 2020 to identify randomized controlled trials (RCTs) and propensity-score matched (PSM) trials that investigated perioperative and long-term outcomes after mitral surgery via conventional sternotomy, MICS and robot. Subanalyses were conducted by restricting trials, in which mitral valve repair was tried first for all patients. Results: Our systematic literature search identified 2 RCTs and 21 PSM trials. MICS was related to significant decrease in PM ([RR] [95% confidence interval [CI] =0.56 [0.40-0.78]] and SSI (RR [95%CI] =0.53 [0.33-0.85) compared to conventional sternatomy. Re-exploration for bleeding was significantly higher in robot compared to sternotomy (RR [95% CI] =1.56 [1.03-2.37]), and transfusion was higher in sternotomy compared to MICS (RR [95%CI] =1.63 [1.27-2.08]). No significant differences were observed in perioperative mortality, MI, stroke, and LCOS among there procedures. Similarly, there were no significant differences in long-term survival and mitral valve reoperation. Suanalyses by restricting trials in which mitral valve repair tried first for all patients showed MICS was related to significant increase in mitral valve reoperation compared to conventional sternotomy (hazard ratio [95%CI] =7.33 [1.54-34.97]) (Figure). Conclusion: Our network meta-analysis demonstrated similar long-term survival and mitral valve reoperation. However, MICS was related to significant increase in mitral valve reoperation after mitral valve repair compared to conventional sternotomy.


2020 ◽  
Author(s):  
Marius Kryzauskas ◽  
Augustinas Bausys ◽  
Austeja Elzbieta Degutyte ◽  
Vilius Abeciunas ◽  
Eligijus Poskus ◽  
...  

Abstract Background Anastomotic leakage (AL) significantly impairs short-term outcomes. The impact on the long-term outcomes remains unclear. This study aimed to identify the risk factors for AL and the impact on long-term survival in patients with left-sided colorectal cancer. Methods Nine-hundred patients with left-sided colorectal carcinoma who underwent sigmoid or rectal resection were enrolled in the study. Risk factors for AL after sigmoid or rectal resection were identified and long-term outcomes of patients with and without AL were compared. Results AL rates following sigmoid and rectal resection were 5.1% and 10.7%, respectively. Higher ASA score (III-IV; OR = 10.54, p = 0.007) was associated with AL in patients undergoing sigmoid surgery on multivariate analysis. Male sex (OR = 2.40, p = 0.004), CCI score > 5 (OR = 1.72, p = 0.025) and T3/T4 stage tumors (OR = 2.25, p = 0.017) were risk factors for AL after rectal resection on multivariate analysis. AL impaired disease-free and overall survival in patients undergoing sigmoid (p = 0.009 and p = 0.001) and rectal (p = 0.003 and p = 0.014) surgery. Conclusion ASA score of III-IV is an independent risk factor for AL after sigmoid surgery and male sex, higher CCI score, and advanced T stage are risk factors for AL after rectal surgery. AL impairs the long-term survival in patients undergoing left-sided colorectal surgery.


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