Effect of streamer tags on survival and growth of juvenile tiger prawns, Penaeus monodon, under laboratory conditions

1992 ◽  
Vol 43 (4) ◽  
pp. 737 ◽  
Author(s):  
JH Primavera ◽  
RM Caballero

The effects of streamer tags and initial prawn size on survival and growth in 2-month- and 7-monthold pond-reared juveniles of Penaeus monodon Fabricius ( 1 1-30 mm carapace length, CL) were assessed under laboratory conditions. Tagging did not cause immediate mortality in juveniles of 11-21 mm CL within a one-week period but led to a significantly lower survival rate after 6 to 8 weeks in 1-m3 tanks. However, tagged prawns of 21-30 mm CL showed high long-term survival rates up to 90% in a 12-m3 tank. The 2-month-old juveniles had lower survival rates than 7-month-old prawns. Specific growth rate was not affected by tagging but was significantly higher in smaller prawns. In general, there was no interaction between the effects of tagging and prawn size in terms of growth and survival rates. The lower long-term survival rate associated with tags may be due to the attractiveness of tags to predators, or to trauma or stress caused by the weight of the tags. These factors are discussed in relation to findings for other penaeid species.

2019 ◽  
Vol 13 ◽  
pp. 175346661987855
Author(s):  
Chienhsiu Huang

Background: An increasing number of patients require prolonged mechanical ventilation (PMV) to survive recovery from critical care. It should be emphasized that PMV is a neglected disease in chest medicine. We investigated 6 years of clinical outcomes and long-term survival rates of patients who required PMV. Methods: We analyzed retrospectively data from patients in respiratory care center (RCC) to investigate the main causes of respiratory failure leading patients to require PMV. We also studied the factors that influence the ventilator weaned rate, factors that influence the long-term ventilator dependence of patients who require PMV, as well as patients’ hospital mortality and long-term survival rates. Results: A total of 574 patients were admitted to RCC during the 6 years. Of these, 428 patients (74.6%) were older than 65 years. A total of 391 patients (68.1%) were successfully weaned from the ventilator while 83 patients (14.4%) were unsuccessfully weaned. A total of 95 patients (16.6%) died during RCC hospitalization. The most common cause of acute respiratory failure leading to patients requiring PMV was pneumonia. The factor that affected whether patients were successfully weaned from the ventilator was the cause of the respiratory failure that lead patients to require PMV. Our hospital mortality rate was 32.4%; the 1-year survival rate was 24.3%. There was a strong correlation between higher patient age and higher hospital mortality rate and poor 1-year survival rate. Patients with no comorbidity demonstrated good 1-year survival rates. Patients with four comorbidities and patients with end-stage renal disease requiring hemodialysis comorbidity showed poor 1-year survival rates. Conclusions: The factor that affected whether patients were successfully weaned from the ventilator was the cause of the respiratory failure that lead patients to require PMV. Older patients, patients with renal failure requiring hemodialysis, and those with numerous comorbidities demonstrated poor long-term survival. The reviews of this paper are available via the supplemental material section.


2019 ◽  
Vol 48 ◽  
Author(s):  
Rafael Coutinho Mello MACHADO ◽  
Geninho THOMÉ ◽  
Sergio Rocha BERNARDES ◽  
Ana Claudia Moreira MELO

Abstract Introduction The long-term implant-supported prosthetic rehabilitation monitoring is extremely important in evaluating parameters that could interfere in the success of the treatment. Objective To evaluate the influence of macrodesign (shape of the body and apex), length and diameter, insertion torque, site of installation as well as the loading protocol, on long-term survival rates. Material and method The data obtained was from the medical records of rehabilitated patients who had had at least one Morse taper implant surgery done at ILAPEO School between 2006 -2012. Incomplete medical records, from which it would have been impossible to extract all data essential to complete the study, were excluded. Result A total of 1,142 patient’s medical records comprised the sample; documenting the progress of 5,601 implants, done in both jaws and mandibles. The final survival rate was 98.31%, over an average time of 37.54 months. The type of implant most used was cylindrical (70.33%). The mean installation torque most evidenced in the study was between 41 and 50 Ncm. A logistical regression analysis showed that none of the following variables, site of installation, body and apex shape designs and length, had any significant statistical influence on implant loss. Torque increase and diameter influenced implant loss while immediate loading favored implant maintenance. Conclusion It can be concluded that Morse taper implants present a long-term survival rate that can be lowered by excessive torque, as well as by the diameter of the implant.


2020 ◽  
Author(s):  
Chienhsiu Huang

Abstract Background The 1-year survival rate of patients on prolonged mechanical ventilation was 29-42% before 2000. By 2012, Carson reported the 1-year survival rate of prolonged mechanical ventilation patients was 52%, an unsatisfactory improvement in survival time. We explored the long-term survival rate of prolonged mechanical ventilation patients at our hospital, 2012-2017. Methods We analyzed retrospectively data from our respiratory care center patients to investigate the discharge status, long-term survival rate, and cause of death. We also compared the 5-year survival rates of prolonged mechanical ventilation patients and our hospital lung cancer patients. Results Five hundred seventy-four patients were admitted to respiratory care center during the study period. The long-term follow-up data of 403 prolonged mechanical ventilation, including 186 patients died in the hospital, 157 discharged prolonged mechanical ventilation patients, and 60 respiratory care ward patients until October 30, 2018. The 1-year survival rate of all prolonged mechanical ventilation patients, discharged prolonged mechanical ventilation patients, and respiratory care ward patients were 24.3%, 50.3%, and 31.7%, respectively. The 5-year survival rates of all prolonged mechanical ventilation patients, discharged prolonged mechanical ventilation patients, and respiratory care ward patients were 18.1%, 40.05%, and 11.7%, respectively. Successful weaning from mechanical ventilation was a key factor in the long-term survival of prolonged mechanical ventilation patients. The 5-year survival rate of discharged prolonged mechanical ventilation patients was better than that of all lung cancer patients. The 5-year survival rates of all prolonged mechanical ventilation patients and respiratory care ward patients were similar to that of stage IV lung cancer patients. Conclusions Prolonged mechanical ventilation patients had the worst long-term survival rate of all patients with chest diseases in our hospital. Successful weaning from the mechanical ventilator was most important factors for improving long-term outcomes in prolonged mechanical ventilation patients.


2015 ◽  
Vol 41 (2) ◽  
pp. 173-177 ◽  
Author(s):  
José Balaguer ◽  
Javier Ata-Ali ◽  
David Peñarrocha-Oltra ◽  
Berta García ◽  
María Peñarrocha-Diago

The study aims were to evaluate survival rates of dental implants in patients wearing maxillary and mandibular overdentures in relation to age, sex, smoking, implant splinting or non-splinting, the maxilla rehabilitated, and number of implants per dental arch. This was a prospective study of patients who were completely edentulous in either mandible or maxilla or both, rehabilitated with implant-retained overdentures, with a follow-up of at least 3 years. 95 patients with 107 overdentures were supported by 360 implants were included in the study. Rehabilitations were monitored over an average of 95 ± 20.3 months (range 36–159). Implant survival in the maxilla was 91.9% and in the mandible 98.6%, representing a statistically significant difference (P < .05). Age, sex and implant splinting did not influence survival rates significantly. Smokers presented a lower survival rate. Implant numbers in the maxilla had a significant influence on survival, 100% for 6 but 85.7% for 4. Three mandibular implants achieved higher survival rates (100%) but with 2 (96.6%) or 4 (99%) survival was lower, although without significant difference. Long-term results suggest that 3-implant mandibular overdentures have an equivalent survival rate to 4-implant overdentures. In the maxilla, results showed that 6 implants may be the best treatment strategy. For smokers with fewer implants retaining the overdentures, there were higher numbers of implant failures.


2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
R. Vibo ◽  
S. Schneider ◽  
J. Kõrv

The aim of this paper was to evaluate the long-term survival of young stroke patients in Estonia, analyse time trends of survival, and compare the results with other studies. We have used 2 population-based first-ever stroke registry data (1991–1993 and 2001–2003) to analyse the 1-, 5-, and 7-year outcome of young stroke patients by the Kaplan-Meier method of analysis. From the group of 1206 patients, 129 (11%) were aged under 55 years. The overall survival rate at 1, 5, and 7 years was 0.70 (95% CI 0.62–0.78), 0.63 (95% CI 0.55–0.72), and 0.61 (95% CI 0.53–0.70), respectively. The survival was significantly worse for patients with intracerebral haemorrhage (P<0.01) and for those aged from 45 to 54 years compared to the younger age group from 0 to 44 years (P=0.03). For patients with ischemic stroke, aged from 15 to 44 years, the 1-, 5-, and 7-year survival rate was 0.89 (95% CI 0.79–1.00), 0.75 (95% CI 0.61–0.93), and 0.75 (0.61–0.93), respectively. There was no difference in overall survival between the two studied periods. We report a low long-term survival rate among young stroke patients in Estonia. Increasing age and hemorrhagic stroke subtype were associated with lower survival. We have previously shown a worse outcome for 1-year survival compared to other studies and currently this trend continues for 5- and 7-year survival rates. In fact, these are the lowest survival rates for the combined and separate stroke subtypes reported so far.


2021 ◽  
Vol 28 ◽  
pp. 107327482199743
Author(s):  
Ke Chen ◽  
Xiao Wang ◽  
Liu Yang ◽  
Zheling Chen

Background: Treatment options for advanced gastric esophageal cancer are quite limited. Chemotherapy is unavoidable at certain stages, and research on targeted therapies has mostly failed. The advent of immunotherapy has brought hope for the treatment of advanced gastric esophageal cancer. The aim of the study was to analyze the safety of anti-PD-1/PD-L1 immunotherapy and the long-term survival of patients who were diagnosed as gastric esophageal cancer and received anti-PD-1/PD-L1 immunotherapy. Method: Studies on anti-PD-1/PD-L1 immunotherapy of advanced gastric esophageal cancer published before February 1, 2020 were searched online. The survival (e.g. 6-month overall survival, 12-month overall survival (OS), progression-free survival (PFS), objective response rates (ORR)) and adverse effects of immunotherapy were compared to that of control therapy (physician’s choice of therapy). Results: After screening 185 studies, 4 comparative cohort studies which reported the long-term survival of patients receiving immunotherapy were included. Compared to control group, the 12-month survival (OR = 1.67, 95% CI: 1.31 to 2.12, P < 0.0001) and 18-month survival (OR = 1.98, 95% CI: 1.39 to 2.81, P = 0.0001) were significantly longer in immunotherapy group. The 3-month survival rate (OR = 1.05, 95% CI: 0.36 to 3.06, P = 0.92) and 18-month survival rate (OR = 1.44, 95% CI: 0.98 to 2.12, P = 0.07) were not significantly different between immunotherapy group and control group. The ORR were not significantly different between immunotherapy group and control group (OR = 1.54, 95% CI: 0.65 to 3.66, P = 0.01). Meta-analysis pointed out that in the PD-L1 CPS ≥10 sub group population, the immunotherapy could obviously benefit the patients in tumor response rates (OR = 3.80, 95% CI: 1.89 to 7.61, P = 0.0002). Conclusion: For the treatment of advanced gastric esophageal cancer, the therapeutic efficacy of anti-PD-1/PD-L1 immunotherapy was superior to that of chemotherapy or palliative care.


2014 ◽  
Vol 41 (3) ◽  
pp. 236-242 ◽  
Author(s):  
A. S. Moghaddam ◽  
G. Radafshar ◽  
M. Taramsari ◽  
F. Darabi

2021 ◽  
Author(s):  
Øystein Høydahl ◽  
Tom-Harald Edna ◽  
Athanasios Xanthoulis ◽  
Stian Lydersen ◽  
Birger Henning Endreseth

Abstract Background Few studies have addressed colon cancer surgery outcomes in an unselected cohort of octogenarian patients. The present study aimed to evaluate the relative survival of octogenarian patients after a major resection of colon cancer with a curative intent. Methods All patients diagnosed with colon cancer at Levanger Hospital between 1980 and 2016 were included. We performed logistic regression to test for associations between 100-day mortality and explanatory variables. We performed a relative survival analysis to identify factors associated with short- and long-term survival.Results Among 239 octogenarian patients treated with major resections with curative intent, the 100-day mortality was 10.1%. Among 215 patients that survived the first 100 days, the five-year relative survival rate was 99.7%. The 100-day mortality of octogenarian patients was significantly shorter than that of younger patients, but the long-term survival converged with that of younger patients. Among octogenarian patients, the incidence of colon cancer more than doubled during our 37-year observation period. The relative increase in patients undergoing surgery exceeded the increase in incidence; hence, more patients were selected for surgery over time. A high 100-day mortality was associated with older age, a high American Society of Anaesthesiologists (ASA) score, and emergency surgery. Moreover, worse long-term survival was associated with a high Charlson Comorbidity Index, a high ASA score, a worse TNM stage, emergency surgery and residual tumours. Both the 100‑day and long-term survival rates improved over time. Conclusion Among octogenarian patients with colon cancer that underwent major resections with curative intent, the 100-day mortality was high, but after surviving 100 days, the relative long-term survival rate was comparable to that of younger patients. Further improvements in survival will primarily require measures to reduce the 100-day mortality risk.


2016 ◽  
Vol 43 (5) ◽  
pp. 397-403 ◽  
Author(s):  
Shuab Omer ◽  
Lorraine D. Cornwell ◽  
Ankur Bakshi ◽  
Eric Rachlin ◽  
Ourania Preventza ◽  
...  

Little is known about the frequency and clinical implications of postoperative atrial fibrillation in military veterans who undergo coronary artery bypass grafting (CABG). We examined long-term survival data, clinical outcomes, and associated risk factors in this population. We retrospectively reviewed baseline, intraoperative, and postoperative data from 1,248 consecutive patients with similar baseline risk profiles who underwent primary isolated CABG at a Veterans Affairs hospital from October 2006 through March 2013. Multivariable logistic regression identified predictors of postoperative atrial fibrillation. Kaplan-Meier analysis was used to evaluate long-term survival (the primary outcome measure), morbidity, and length of hospital stay. Postoperative atrial fibrillation occurred in 215 patients (17.2%). Independent predictors of this sequela were age ≥65 years (odds ratios [95% confidence intervals], 1.7 [1.3–2.4] for patients of age 65–75 yr and 2.6 [1.4–4.8] for patients &gt;75 yr) and body mass index ≥30 kg/m2 (2.0 [1.2–3.2]). Length of stay was longer for patients with postoperative atrial fibrillation than for those without (12.7 ± 6.6 vs 10.3 ± 8.9 d; P ≤0.0001), and the respective 30-day mortality rate was higher (1.9% vs 0.4%; P=0.014). Seven-year survival rates did not differ significantly. Older and obese patients are particularly at risk of postoperative atrial fibrillation after CABG. Patients who develop the sequela have longer hospital stays than, but similar long-term survival rates to, patients who do not.


Sign in / Sign up

Export Citation Format

Share Document