scholarly journals Bioefficacy and durability of Olyset® Plus, a permethrin and piperonyl butoxide-treated insecticidal net in a 3-year long trial in Kenya

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Paul M. Gichuki ◽  
Luna Kamau ◽  
Kiambo Njagi ◽  
Solomon Karoki ◽  
Njoroge Muigai ◽  
...  

Abstract Background Long-lasting insecticide nets (LLINs) are a core malaria intervention. LLINs should retain efficacy against mosquito vectors for a minimum of three years. Efficacy and durability of Olyset® Plus, a permethrin and piperonyl butoxide (PBO) treated LLIN, was evaluated versus permethrin treated Olyset® Net. In the absence of WHO guidelines of how to evaluate PBO nets, and considering the manufacturer’s product claim, Olyset® Plus was evaluated as a pyrethroid LLIN. Methods This was a household randomized controlled trial in a malaria endemic rice cultivation zone of Kirinyaga County, Kenya between 2014 and 2017. Cone bioassays and tunnel tests were done against Anopheles gambiae Kisumu. The chemical content, fabric integrity and LLIN survivorship were monitored. Comparisons between nets were tested for significance using the Chi-square test. Exact binomial distribution with 95% confidence intervals (95% CI) was used for percentages. The WHO efficacy criteria used were ≥ 95% knockdown and/or ≥ 80% mortality rate in cone bioassays and ≥ 80% mortality and/or ≥ 90% blood-feeding inhibition in tunnel tests. Results At 36 months, Olyset® Plus lost 52% permethrin and 87% PBO content; Olyset® Net lost 24% permethrin. Over 80% of Olyset® Plus and Olyset® Net passed the WHO efficacy criteria for LLINs up to 18 and 12 months, respectively. At month 36, 91.2% Olyset® Plus and 86.4% Olyset® Net survived, while 72% and 63% developed at least one hole. The proportionate Hole Index (pHI) values representing nets in good, serviceable and torn condition were 49.6%, 27.1% and 23.2%, respectively for Olyset® Plus, and 44.9%, 32.8% and 22.2%, respectively for Olyset® Net but were not significantly different. Conclusions Olyset® Plus retained efficacy above or close to the WHO efficacy criteria for about 2 years than Olyset® Net (1–1.5 years). Both nets did not meet the 3-year WHO efficacy criteria, and showed little attrition, comparable physical durability and survivorship, with 50% of Olyset® Plus having good and serviceable condition after 3 years. Better community education on appropriate use and upkeep of LLINs is essential to ensure effectiveness of LLIN based malaria interventions. Graphical Abstract

2021 ◽  
Vol 15 (5) ◽  
pp. 1008-1010
Author(s):  
Aamna Khokhar ◽  
Iram Kehkashan Khurshid ◽  
Sadia Lodhi ◽  
Alia Sarfaraz ◽  
Muhammad Arif ◽  
...  

Background: Liver is not only involved in maintaining homeostasis but also exhibits significant role in metabolism and detoxification of various drugs and toxins. Aim: To explore the hepato-protective role of N-acetylcysteine against methotrexate induced hepato-toxicity. Study design: Randomized controlled trial. Methodology: This study having mice (n=18) was carried out after ethical review committee’s (ERC) approval at Foundation university medical college in collaboration of National institute of health, Islamabad in 2017. Single intraperitoneal injection (20mg/kg) of methotrexate induced hepato-toxicity. Hepatoprotective effect was assessed by oral administration N-acetylcysteine (50mg/kg) alone with methotrexate. The extent of liver damage and effect of protective agents were determined by measuring serum ALT, AST, ALP after 24 hours of respective treatment. Liver samples were taken for histological analysis. One way ANOVA followed by Post Hoc Tukey test was applied for multiple comparisons of biochemical markers between the groups. Histopathological findings were analyzed by Chi Square test. p < 0.05 was considered significant. Results: Significant (p < 0.05) hepatotoxicity was seen with substantial elevation in serum ALT, AST and ALP with methotrexate. N-acetylcysteine attenuated the methotrexate induced hepatotoxicity significantly (p < 0.05). The histopathological examination showed mild steatosis along with focal pleomorphism in the liver of mice that received methotrexate in comparison to group treated with N-acetylcysteine and methotrexate though minimal inflammation was seen. Conclusion: We concluded that N-acetylcysteine ameliorates the methotrexate induced hepatotoxicity on when used concomitantly. Keywords: Hepatotoxicity, N-acetylcysteine and Methotrexate


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 8549-8549 ◽  
Author(s):  
M. De Cicco ◽  
M. Matovic ◽  
R. Pacenzia ◽  
D. Fantin ◽  
M. Caserta ◽  
...  

8549 Background: Timing and frequency of non occlusive (nO) or occlusive (O) CVCrT in cancer patients (pts) remain unclear. In this randomized controlled trial we studied these points and evaluated the efficacy and safety of short-term prophylaxis with A or D in the prevention of CVCrT. Methods: Consecutive cancer pts without contraindications to short-term anticoagulation, scheduled for chemotherapy via CVC, were randomly assigned to receive: A 1 mg/day for 3 days before and 8 days after CVC insertion; D 5,000 IU 2 hours before and daily for 8 days after CVC insertion; no anticoagulant treatment (NT). All pts underwent venography (V) at day 8 and 30 after CVC insertion and then every two months until CVC removal . The primary endpoint was V detected CVCrT, evaluated as nO or O when it was partially or completely occlusive of the vein lumen, respectively. Bleeding episodes were recorded. Proportions were compared using chi-square test together with odds ratio (OR). Results: 450 pts were randomized, 348 of whom (120/150 A, 114/150 D, and 114/150 NT) underwent V (median number of procedures 4, range 2–8). Both A and D reduced the frequency of V detected CVCrT (21.9% A vs 55.3% NT, OR= 4.35 (95% CI 2.43–7.69), p<0.001; 40% D vs 55.3% NT, OR= 1.85 (95% CI 1.10–3.13), p=0.02). A was more effective than D (OR= 2.37 (CI 1.34–4.22), p= 0.003). The frequency of O CVCrT was not different in the 3 groups (0.9% A, 5.0% D, 4.4% NT; p= 0.18). Overall, 5.1% of pts with CVCrT were symptomatic, all presenting O CVCrT (42% of pts with O CVCrT were not symptomatic). Most CVCrTs (95.6%) were observed at day 8 after CVC insertion. No major bleeding or pulmonary embolism occurred. Conclusions: In this study, acenocumarine was more effective than dalteparine in reducing V detected CVCrT. The doses of prophylactic agents used in this study proved to be safe. Symptomatic CVCrT evaluation alone underestimates the actual CVCrT frequency. The first days following CVC insertion are at highest risk for CVCrT. Short term thrombosis prophylaxis appears to be superior to no treatment without the expenses and inconveniences inherent in long-term prophylaxis. No significant financial relationships to disclose.


2021 ◽  
Vol 21 ◽  
pp. e226341
Author(s):  
Moses Okechukwu Azouru ◽  
Modupe Olufunmilayo Ashiwaju ◽  
Augustine Edomwonyi ◽  
Afolabi Oyapero ◽  
Bola Obisesan ◽  
...  

Treatment of dental caries in children still remains challenging due to lack of cooperation with conventional treatment modalities. Recently, the use of Silver Diamine Fluoride (SDF) has proved useful in addressing this challenge. Aim: This clinical trial aimed to evaluate the effectiveness of Silver Diamine Fluoride (SDF) in arresting caries in children in Lagos, Nigeria. Methods: This was a phase III balanced randomized controlled school based interventional study on 240 children. The study group was treated with SDF while GIC was used in the control group. Follow up visits in 2 weeks, 1 month, and 3 months were carried out to assess the treatment outcome. Inferential statistics with the use of Pearson Chi-square test and Independent Student t-test were used at 5% level of significance. Results: There was significant relationship between SDF and caries arrest in 2 weeks, 1 month and 3 months’ assessment period (p = 0.001). The control group showed continuous decline (71.7%, 54.3% and 50.9%) in restorative success from 2 weeks to 3 months respectively. The mean ± SD and Confidence Interval (CI) of arrested caries in the SDF group were 113± 1.24 and 113.1 – 113.5 respectively. In the control group the mean ± SD and CI of restorative success were 69.3±11.8 and 67.2 – 71.4. The effect size was 5.24. Conclusion: The result of the study showed that SDF was effective in arresting caries in children without any harm and there was statistically significant difference in the use of 38% SDF in arresting caries in children.


Author(s):  
Obaid Ul Haseeb ◽  
Haris Rashid ◽  
Afrin Ahmed ◽  
Mir Arsalan Ali ◽  
Shakil Alam ◽  
...  

Background: Laparoscopic surgery or "minimally invasive" surgery is a type of specialist surgery. The most crucial, demanding, and risky part of the laparoscopy is the creation of pneumoperitoneum. The two most prevalent methods for creating a pneumoperitoneum are the closed and open approaches. Despite the fact that there is no universal consensus on the best approach to gain access to the peritoneal cavity in order to create a pneumoperitoneum. The aim of present study was to compare the operative time and post-operative outcome associated with closed technique and open classic technique. Methods: This randomized controlled trial was carried out by recruiting patients presented in surgery department of Ziauddin Hospital North campus. The samples were divided into two equal groups A and B. Group A was operated for Laparascopic abdominal surgery by open technique while group B operated through closed technique. Effectiveness of procedures was measured by number of complications occurred during and after surgery. Chi-square test and independent T-test were applied for association. P-value of < 0.05 was considered as significant. Results: Mean age was found to be 45.5±16 years and mean weight was 68±10.5 kilograms. Mean time of operations was 84.5±18.5 minutes. 60 (69.8%) of patients included underwent the laparoscopic cholecystectomy while 15 (17.4%) patients had laparoscopic appendectomy. 13/86: 15.1% of patients had the minor complication including 12/43: 27.9% in group B and 1/43: 2.3% in group A. The comparative analysis between the two groups in terms of effectiveness of either method compared by means of development of the complications was found to be highly significant with p value 0.002. Conclusion: The open approach to laparoscopic entrance has been linked to fewer surgical problems than the closed approach.


2017 ◽  
Vol 24 (11) ◽  
pp. 1749-1754
Author(s):  
Muhammad Abdullah ◽  
Zaheer Ahmed ◽  
Hassan Fareed

The aim on the study was to compare the efficancy of salmeterol and formoterolin persistent asthama. Study Design: Randomized-Controlled-Trial(RCT). Setting: Departmentof Medicine, Allied Hospital, Faisalabad. Period: June 2014 to December 2014. Methodology:Patients of both genders with ages between 18 and 70 years having persistent bronchial asthmawhile Pregnant or lactating mothers, patients with upper or lower respiratory tract infections,acute asthma exacerbations within 4 weeks of first visit, Oral corticosteroids within 4 weeks ordepot steroids within 12 weeks of first visit and Smoking history of more than 10 pack yearswere excluded from study. Patients were randomly divided into two groups (Group A & GroupB) using computer generated random number table. Salmeterol/Fluticasone combination wasgiven to group A with a dose of 50/250μg, 2 actuations with ABEL SPACER DEVICE twice aday for a period of 24 weeks. Formoterol/Budesonide combination was given to group B with adose of 400/6μg with Rotahaler twice a day. Follow up was done by patient’s outdoor visits at6th,12th,18h and 24th week. Results: 180 patients were enrolled in the study. 79 (44%) weremales and 101 (56%) were females. Mean age of study population was 45.25+13.382 years.Patients in Group B experienced lesser number of exacerbations than patients in Group B.Group B showed better response to treatment than Group A using chi square test. (P-Value0.001). Conclusion: It has been concluded that budesonide/Formoterol is more effective incontrolling asthma symptoms than fluticasone/Salmeterol.


Author(s):  
Sabeen Ashraf ◽  
Azra Saeed Awan ◽  
Hina Tabassum ◽  
Omair Ashraf ◽  
Touseef Fatima ◽  
...  

Background: Efforts should be made to minimize the blood loss at the time of cesarean section. The techniques used to reduce the blood loss include finger splitting versus scissor cutting of incision, in situ stitching versus exteriorization and stitching of uterus and finally spontaneous or manual removal of the placenta. Objective: The main objective of this study is to correlate the frequency of loss of blood between the placenta removed manually and spontaneously during cesarean section. Methods: Randomized controlled trial in the department of Obstetrics and Gynecology, Fauji Foundation Hospital, Rawalpindi. The sample is collected through Consecutive (non- probability) sampling. The study was conducted after approval from the hospital ethical and research committee. Informed written consent was taken from all the patients. The patients were divided into two groups, group A and group B randomly by using random table numbers. Group A had spontaneous placental delivery. Group B had manual placental delivery. Each patient was examined thoroughly and detailed history was taken. Data Analysis: Data was analyzed using SPSS 20 for windows. The frequency and percentage of blood loss were measured. A chi-square test was applied to correlate the blood loss between the two groups. p values <0.05 were considered statistically significant. Effect modifiers like age, gestational age, parity were controlled by stratification. Results: The blood loss was compared between both groups using the chi-square test not assuming null-hypothesis. The blood loss was comparatively high in-group in which the placenta was removed manually (p=0.007). Keywords: Caesarean Section, Placenta removal, Spontaneous, Manual, Blood loss.


2019 ◽  
pp. 152483991986992
Author(s):  
Heather M. Padilla ◽  
Heather Zuercher ◽  
Melissa Robertson ◽  
David M. DeJoy ◽  
Mark Wilson ◽  
...  

Background. FUEL Your Life (FYL) is a worksite translation of the Diabetes Prevention Program (DPP). In a randomized controlled trial, participants in a phone coaching condition demonstrated greater weight loss compared to participants in a group coaching or self-study condition. The purpose of this article is to describe the differences in participant reach, intervention uptake, and participant satisfaction for each delivery mode. Method. Employees who were overweight, obese, or at high risk for diabetes were recruited from city–county governments. Process evaluation data were collected from health coach records, participant surveys, and research team records. Differences between groups were tested using Pearson chi-square test and one-way analysis of variance. Results. Employee reach of targeted enrollment was highest for the self-study condition. Overall, intervention uptake was highest in the phone coaching condition. Participants who received phone coaching had increased uptake of the participant manual and self-monitoring of food compared to participants who received group coaching or self-study. Discussion. FYL demonstrated that DPP could be effectively delivered in the worksite by three different modalities. When implemented in a self-study mode, reach is greater but intervention uptake is lower. Phone health coaching was associated with greater intervention exposure.


2021 ◽  
Vol 15 (10) ◽  
pp. 3359-3362
Author(s):  
Ambrin . ◽  
Farah Tasleem ◽  
Anum Saleem ◽  
Doua Tasleem ◽  
Talha Ahmed

Objective: The aim this study was to check the accuracy of paper point technique for final working length measurement after canal preparation. Study Design: Randomized controlled trial Place and Duration: Study was performed in department of operative dentistry, Liaquat University of Medical & Health Sciences, Jamshoro for one year duration from January 2017 to December 2017. Methodology: This study was performed on 78 patients divided equally into two groups. In one group working length was established by using electronic apex locator while in second group working length was established by using electronic apex locator with paper point technique. To check the working length master apical gutta percha point (GP point) was inserted into canal and radiograph were taken by paralleling angle technique. Results: There were 34 (43.6%) males while 44 (56.4%) patients were females. Mean age of patients was 30.5±8.9 years. Mean tooth number was 28.8±11.0. Group A is concerned that was treated only with Electronic Apex Locator showed lesser number of acceptable length than group B. on the other hand, group B was treated with electronic apex locator and paper point technique showed higher acceptable length of respondents with a difference of 4 frequencies or 7% in excess. A less value of chi-square test showed relationship between observed and expected data; whereas, significance value indicated no significant difference between group A and B. Conclusion: Paper point technique is as reliable as other techniques for final working length measurement. Key Words: Electronic Apex Locator, Paper Point Technique, Endodontic Working Length


Author(s):  
Rogevando Nunes ◽  
André Primo

Objective To compare low doses of pethidine with dipyrone in labor analgesia. Methods In a randomized prospective study conducted by Universidade de Fortaleza, in the state of Ceará, Brazil, between May and December 2016, 200 full-term parturients, with very painful uterine contractions and exhibiting uterine cervix dilatation ≥ 5 cm, were selected to receive a single intravenous dose of either 0.25 mg/kg of pethidine (n = 100) or of 25 mg/kg of dipyrone (n = 100). Pain was assessed using the visual analogue scale. The data were analyzed using the Student t-test, the chi-square test and the likelihood ratio. Results There was a significant improvement in pain in 35% of the parturients. Both drugs presented a similar analgesic effect 1 hour after the intervention (p = 0.692). There was no analgesic effect during the evaluation of the second hour after the intervention with pethidine or dipyrone. There were no adverse effects, such as maternal drowsiness, nausea or vomiting, related to the drugs used. Conclusion Pethidine in low doses and dipyrone presented equivalent analgesia during labor. Public Registry of Clinical Trials RBR-4hsyy4.


2018 ◽  
Vol 25 (1) ◽  
pp. 21
Author(s):  
Nova Elok Mardliyana ◽  
Abkar Raden ◽  
Umu Hani EN

Objectives: to clarify the effect of gel ice pack against the first stage of labor pain of the active phase.Materials and Methods: The study design True experiment with design Randomized Controlled Trial conducted in several places independently practicing midwives. Research samples were 44 maternal maternity which 22 were given ice gel packs and 22 maternal performed relaxation techniques. The analysis includes statistical chi-square test with 95% confidence interval.Results: The results showed no significant correlation between the administration of gel ice packs to decrease pain intensity active phase of the first stage of labor with p value of 0.000 and a confidence interval: 2.1 to 18.3.Conclusion: Mother maternity given gel ice packs experienced lower pain than those not given the gel ice pack.


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