Seasonal abundance and distribution of dragonflies in upper Siran valley of District Mansehra Pakistan

Present study was conducted to study seasonal abundance and distribution of dragonflies in upper Siran valley district Mansehra Pakistan. To collect data, eleven localities were visited for three consecutive years (2016-2018). Results come up with a sum of 300 specimens identified under three families, eight genera and twenty species. Highest seasonal abundance recorded during summer and spring were 80.67% and 13.33% respectively while minimum 6.00% was recorded during early autumn. Dominant species observed were, Orthetrum chrysis (14.00%), followed by O. gluacum (12.00%), Palpoleura sexmaculata sexmaculata (11.33%) and O. cancellatum cancellatum (8.00%). However the highest population of dragonflies was found in Munda Gucha with a percentage of 11.33 followed by Jabbar (11.00%) and Sachan (9.67%). The lowest populations were recorded in Suham (6.00%), Dadar (7.67%) and Jabori (7.67%). The surveyed valley showed diverse Anisopterous fauna and thus further extensive surveys are recommended that can come up with more important species from the area.

Implementing TB preventive treatment within differentiated HIV service delivery models in global programs

Global HIV program stakeholders, including the US President's Emergency Plan for AIDS Relief (PEPFAR), are undertaking efforts to ensure that eligible people living with HIV (PLHIV) receiving antiretroviral treatment (ART) receive a course of TB preventive treatment (TPT). In PEPFAR programming, this effort may require providing TPT not only to newly diagnosed PLHIV as part of HIV care initiation, but also to treatment-experienced PLHIV stable on ART who may not have been previously offered TPT. TPT scale-up is occurring at the same time as a trend to provide more person-centered HIV care through differentiated service delivery (DSD). In DSD, PLHIV stable on ART may receive less frequent clinical follow-up or receive care outside the traditional clinic-based model. The misalignment between traditional delivery of TPT and care delivery in innovative DSD may require adaptations to TPT delivery practices for PLHIV. Adaptations include components of planning and operationalization of TPT in DSD, such as determination of TPT eligibility and TPT initiation, and clinical management of PLHIV while on TPT. A key adaptation is alignment of timing and location for TPT and ART prescribing, monitoring, and dispensing. Conceptual examples of TPT delivery in DSD may help program managers operationalize TPT in HIV care.

Efficacy and Safety of a Novel Broad-Spectrum Anti-MRSA Agent Levonadifloxacin Compared with Linezolid for Acute Bacterial Skin and Skin Structure Infections: A Phase 3, Openlabel, Randomized Study

BACKGROUND

Levonadifloxacin is a novel broad-spectrum anti-MRSA agents belonging to the benzoquinolizine subclass of quinolone. It is developed for oral or intravenous administration for the treatment of infections caused by Gram-positive organisms including methicillin-resistant Staphylococcus aureus (MRSA).

OBJECTIVES

To establish the non-inferiority of levonadifloxacin compared with linezolid for the treatment of acute bacterial skin and skin structure infections (ABSSSI) and to compare the safety of the two antimicrobials.

SUBJECTS AND METHODS

This was a Phase 3, multicentre, randomized, open-label, active- comparator study with 500 subjects. Oral levonadifloxacin 1000 mg was compared with oral linezolid 600 mg whereas IV levonadifloxacin 800mg was compared with IV linezolid 600 mg, each treatment was administered twice daily for 7-10 days. Non-inferiority was evaluated by comparing oral levonadifloxacin to oral linezolid and IV levonadifloxacin to IV linezolid for overall clinical response at TOC (Test of Cure) Visit.

RESULTS

The clinical cure rates observed at the TOC in the mITT (modified Intent to treat) populations for levonadifloxacin was numerically higher compared to linezolid in the IV sub-group [(91.0% verses 87.8%); treatment difference of 3.2% (95%CI, -4.5 to 10.9)] and in the oral sub-group (95.2% versus 93.6%); treatment difference of 1.6 % [95%CI, -4.2 to 7.3]). As the lowerbound of the 95% CI around the treatment difference was greater than -15% for both subgroups, the primary objective of the study was met. Therefore, both IV levonadifloxacin and oral levonadifloxacin were non-inferior to IV linezolid and oral linezolid, respectively. The majority of subjects in the micro-ITT population had a baseline infection caused by S. aureus with approximately 30% of subjects having MRSA. Levonadifloxacin (IV and oral) had a higher clinical cure rate at TOC for MRSA patients compared with linezolid (IV and oral), (95.0% vs. 89.3% respectively). Levonadifloxacin showed evidence of favourable clinical and microbiological efficacy in subjects with concurrent bacteraemia as well as in subjects with diabetes including diabetic foot infections caused by Gram-positive pathogens including MRSA. Pharmacokinetic analysis showed that bioavailability of oral levonadifloxacin was 90% and similar pharmacokinetic profile of levonadifloxacin by both routes provide an option for IV to oral switch for the treatment of subjects. Incidences of treatment-emergent adverse events (TEAEs) were similar between treatment groups and between IV (20.8% vs. 22.4%, for levonadifloxacin and linezolid, respectively) and oral therapy (16.0% vs. 13.5%, respectively), There were no SAEs or deaths related to study drug and the majority of the AEs observed were mild in nature. Overall, the administration of both IV and oral levonadifloxacin was well-tolerated in subjects with ABSSSI.

CONCLUSIONS

The results demonstrate that IV and oral levonadifloxacin therapy has excellent clinical activity against MRSA and offers advantage compared to other quinolones which generally lack MRSA coverage. Levonadifloxacin is safe and well tolerated in the treatment of ABSSSI caused by Gram -positive pathogens including MRSA as well as non-inferior to IV and oral linezolid, respectively. Similar pharmacokinetic profile of IV and oral levonadifloxacin provides an option for IV to oral switch for the treatment of subjects. Both oral and IV levonadifloxacin have recently been granted approval in India for the treatment of ABSSSI including diabetic foot infections and concurrent bacteraemia in adults (18 years of age or older). ClinicalTrials.gov Registration: NCT03405064. CTRI No.: CTRI/2017/06/008843.

Ion-acoustic dipolar vortex in degenerate magnetoplasma with ions/electrons thermal corrections

Nonlinear evolution and propagation characteristics of an ion-acoustic (IA) dipolar vortex are examined in a magnetoplasma that comprises partially degenerate electrons and dynamic ions. The adiabatic ions reduce the quantum magnetohydrodynamic equations to a modified momentum equation. The latter admits a new solution and leads to an evolution equation for the description of a coherent IA dipolar vortex. Numerical analysis reveals that variations in the relevant plasma parameters alter the evolution condition for a stable vortex. The electron exchange-correlation enhances excitation of the vortex as it extends the parametric regime associated with the stable vortex solution. On the contrary, the ion temperature lessens the nonlinear evolution of the vortex. Importantly, a degree of enhancement in the exchange-correlation potential leads to the wave dispersion and-in return-widens the vortex potential spatially. The novel nature of the derived results stresses upon the comprehension of the ordered structures in the compact stars, the magnetic mirrors, the ionosphere, the pinch devices, etc., where thermal corrections significantly impact the waves dynamics.

Change in malate dehydrogenase and alpha amylase activities in Rubus fruticosus and Valeriana jatamansi treated granary weevil, Sitophilus granarius

Poor storage conditions provide favorable environment to stored grain pests for their growth. The bio-pesticides are the best alternatives to synthetic pesticides. Present study was conducted to compare toxicity of Rubus fruticosus and Valeriana jatamansi against granary weevil, Sitophilus granarius and subsequent changes in enzyme activity responsible for grain damage. In current research 5 g of R. fruticosus fruit and V. jatamansi rhizome powders were tested separately against S. granarius, in 50 g wheat whole grains for seven days in comparison with the control. The enzymatic activity of malate dehydrogenase and α-amylase was observed in the cellular extracts of S. granarius. The insects were crushed and homogenized in phosphate-buffer solution and centrifuged at 10000 rpm for 5 minutes. For the enzymatic measurement supernatant was tested; the spectrophotometer was adjusted at 340 nm. The reagents were mixed and incubated at 25 °C for five minutes. The cuvettes were placed in the experimental and reference sites of spectrophotometer and recorded the change in absorbance for 3-4 minutes. There was 5.60% and 14.92% reduction in the activity of malate dehydrogenase in R. fruticosus and V. jatamansi, treated insects, respectively. The alpha amylase enzyme activity was 6.82% reduced and 63.63% increase in R. fruticosus and V. jatamansi, treated insects, respectively. Present study addresses that both plant powders are effective against granary weevil by altering enzyme activities so both the plant powders can be used as bio-pesticides against the stored grains pests.

FRI0539 SURVIVAL IN PATIENTS WITH CONNECTIVE TISSUE DISEASE-ASSOCIATED PULMONARY ARTERIAL HYPERTENSION (CTD-PAH): A META-ANALYSIS OF OBSERVATIONAL REGISTRIES

Background:

Although patients with CTD-PAH comprise approximately one third of the overall PAH population, the literature on survival outcomes in CTD-PAH patients overall and by CTD subtype is limited by small sample sizes. We conducted a meta-analysis of more than 4,000 patients with CTD-PAH enrolled in observational registries.

Objectives:

To determine survival rates in patients with CTD-PAH overall and by CTD subtypes.

Methods:

The PubMed and EMBASE databases were searched for English-only articles published between January 1, 2000 and November 25, 2019. Inclusion criteria were multicenter registries of adults with WHO group 1 pulmonary hypertension (PAH); conducted in 2000 or later; and survival data for ≥30 patients with CTD-PAH. Meta-analysis of survival was performed using a random-effects model. Survival was estimated for CTD-PAH overall; for CTD-PAH stratified by registries primarily conducted before and after 2010 to assess the impact of new therapies, as well as combination therapy approaches targeting multiple pathways; and for CTD subtypes (systemic sclerosis [SSc] and systemic lupus erythematosus [SLE]).

Results:

Nineteen registries met inclusion criteria and reported data on 4,008 patients with CTD-PAH. Of these patients, 1,485 had SSc, 456 had SLE, and CTD subtype was not specified in 2,067. CTD-PAH patients had a mean age of 55 years and 87% were female. Most patients (70%) had functional class III or IV disease and the mean 6-minute walk distance at enrollment was 327 m. Among registries that enrolled patients of all PAH etiologies (N=7,829), survival rates in the CTD-PAH subpopulation (n=2113), were 83%, 73%, and 62% at 1-, 2-, and 3- years, respectively. These survival rates were lower than those reported for the overall PAH population: 88%, 79%, and 72% at 1-, 2-, and 3- years, respectively. Numerically higher survival rates at 1-, 2-, and 3- years were observed in CTD-PAH patients treated in 2010 and later: 85% vs 90%, 74% vs 82%, and 65% vs 73%. Among all CTD-PAH patients, survival rates were lower for patients with SSc compared to those with SLE: 88% vs 92%, 75% vs 90%, 67% vs 87% at 1-, 2-, and 3- years, respectively (Figure).

Conclusion:

Patients with CTD-PAH have a substantial risk of death, however, CTD-PAH patients treated within the last ten years have numerically higher survival rates than those treated earlier. This may be related to increased screening for PAH, especially in SSc (leading to earlier diagnosis) and/or the availability of new treatment approaches. Consistent with clinical observations, patients with SSc have worse survival rates than those with SLE. Given the high risk of mortality in these patients, early detection and upfront aggressive treatment are warranted.

References:

Acknowledgments:

This analysis was funded by Actelion Pharmaceuticals.

Disclosure of Interests:

Dinesh Khanna Shareholder of: Eicos, Grant/research support from: NIH NIAID, NIH NIAMS, Consultant of: Acceleron, Actelion, Bayer, BMS, Boehringer-Ingelheim, Corbus, Galapagos, Genentech/Roche, GSK, Mitsubishi Tanabi, Sanofi-Aventis/Genzyme, UCB Pharma, Carol Zhao Shareholder of: Actelion Pharmaceuticals US, Inc., Employee of: Actelion Pharmaceuticals US, Inc., Lorinda Chung Grant/research support from: United Therapeutics, Boehringer Ingelheim, Consultant of: Bristol-Myers Squibb, Boehringer Ingelheim, Mitsubishi Tanabe, Eicos Sciences, Gerry Coghlan Grant/research support from: Johnson & Johnson, Consultant of: Bayer, Johnson & Johnson, GlaxoSmithKline, Speakers bureau: Bayer, Johnson & Johnson, GlaxoSmithKline, Rajan Saggar Grant/research support from: Actelion, Gilead Science, United Therapeutics, Consultant of: Actelion, Gilead Science, United Therapeutics, Speakers bureau: Actelion, Gilead Science, United Therapeutics, Stephen Mathai Consultant of: Actelion, Liquidia, Arena, United Therapeutics, Mehul Shah Shareholder of: Actelion Pharmaceuticals US, Inc, Employee of: Actelion Pharmaceuticals US, Inc, John Hartney Shareholder of: Actelion Pharmaceuticals US, Inc, Employee of: Actelion Pharmaceuticals US, Inc, Vallerie McLaughlin Grant/research support from: Reata Pharmaceutics, SoniVie, United Therapeutics, Bayer, Acceleron, Actelion Pharmaceuticals US, Inc., Consultant of: Actelion Pharmaceuticals US, Inc., Acceleron, Arena Pharmaceuticals, Bayer, Caremark, CiVi Biopharma, United Therapeutics

Analysis of the impact of EEA stapler size on risk of anastomotic complications in colorectal anastomosis: does size matter?

BACKGROUND

Colorectal anastomotic complications are dreaded and dramatically affect outcomes. Causes are multifactorial, with the size of the end-to-end anastomosis (EEA) stapler a modifiable factor and potential target for risk reduction. Our goal was to examine the impact of the EEA stapler size on the risk of anastomotic complications in left-sided colorectal resections.

METHODS

A prospective divisional database was reviewed for consecutive elective left-sided resections with a colorectal anastomosis using an EEA stapler from January 2013 May 2018 inclusive. Patients were stratified into 25-29 mm or 30-33 mm cohorts. Patient and disease demographics, operative variables, and postoperative outcomes were evaluated. The main outcome measures were the rate and factors associated with anastomotic complications.

RESULTS

Four hundred seventy-three cases were evaluated, 185 ( 39.1%) were in the 25-29 mm group and 288 (60.9%) in the 30-33 mm group. Patients were comparable in demographics and operative variables. More males were anastomosed with the 30-33 mm than with the 25-29 mm stapler (57.6% vs 28.6%, p < 0.01). Significantly more patients developed an anastomotic stricture with the 25-29 mm than with the 30-33 mm staplers (7.1% vs. 2.1%; p = 0.007). There was no significant difference in leak rates or reoperation/interventions between groups. On logistic regression, neither gender, operative indication nor approach were associated with anastomotic leak, readmission, or reoperation/intervention. Stapler size remained significantly associated with stricture (p = 0.032).

CONCLUSIONS

The 25-29 mm EEA staplers were associated with an increased rate of anastomotic stricture compared to 30-33 mm staplers in left-sided colorectal anastomoses. As stapler size is a simple process measure that is easily modifyable, this is a potential target for improving anastomotic complication rates. Further controlled trials may help assess the impact of stapler size on improving patient and quality outcomes.

Use of voice messaging via mobile phone to communicate female adolescents in Bangladeshi urban slum

Problem

Utilization of available maternal health services is comparatively low among adolescent population in Dhaka urban slum areas and lack of adequate knowledge is one major contributor to low service utilization among slum dwelling adolescent mothers.

Description of problem

Dhaka urban slum dwelling female adolescents are difficult to reach adequately with health messages through traditional home visit by community health workers for counseling, because many of these adolescents in Dhaka urban slums have a job outside home. We designed and implemented an innovative health communication intervention “Health Boost” - an approach to provide reproductive, maternal and newborn health information for married female adolescents using the voice message system on mobile phone.

Methods

We delivered ‘Health Boost’ (HB) voice messages to enrolled married adolescent girls, twice a week, with re-listening option. Pregnant and non-pregnant participants received separate sets of messages. Enrollment was started after baseline survey (September 2016) and continued during October 2016 - April 2017. Pregnant participants received messages at least for 6 months before delivery. For evaluation, we followed pre-post observation study design and had the endline survey in November 2017.

Results

Comparing HB non-receivers at baseline (n = 321) and HB receivers at endline (n = 45), statistically significant improvement was revealed for knowledge on danger signs - (a) during pregnancy (55.5% vs. 93.3%; p &lt; 0.001), (b) during child delivery (54.2% vs. 82.2%; p &lt; 0.001), (c) for newborn (56.7% vs. 75.6%; p &lt; 0.02). We also found significantly higher utilization of service among HB receivers: Utilization of antenatal care increased from 70.4% to 87.5% (p &lt; 0.02); and use of postnatal care increased from 31.6% to 73.7% (p &lt; 0.03).

Lessons

‘Health Boost’ messages were instrumental and effective to increase knowledge and service utilization among married adolescent girls in Dhaka urban slum areas.

Key messages

Voice message is an innovative way to reach hard-to-reach population by using mobile phone technology. Voice messages were instrumental and effective to increase knowledge and service utilization among urban female adolescent population, for reproductive, maternal and newborn health.

An automated diagnostic device for children under 5 years of age: A proof-of-concept study in Malawi

Background

Automated diagnostic device to measure child’s vital sign is a global unmet demand. Having separate diagnostic devices to measure multiple vital signs is more expensive, and can be complex for health workers. An automated “all-in-one” device would help avoiding extra costs as well as maintenance challenges associated with multiple devices. In addition to improve classifying childhood illness, such an automated device would also increase adherence to guidelines, optimal use of antibiotics, and a reduction of unnecessary referrals.

Methods

We studied an automated device in Malawi, which was designed to measure multiple key vital signs (SPO2, respiratory rate, temperature) among newborn, infant and children &lt;5 years. The device collected photoplethysmogram (PPG) signals for SpO2 via a universal pediatric sensor, placed on child’s finger. Temperature was measured via infra-red signal from child’s forehead. Accelerometry measures respiratory rate, by placing the device around the child’s belly. The CO2 sensor data together with video recordings of child’s respiration offered the reference for child’s respiration count.

Results

Preliminary analyses of valid PPG signals, video annotated respiratory count and CO2 sensor data revealed the following key results:

- For SPO2, the performance of the target probe among 170 subjects appears extremely well with even the smallest and largest children.

- Among 145 subjects with valid CO2 data, 93 subjects were fully calm and had a regular breathing pattern. Comparing accelerometry measurements from 93 calm subjects with the reference data, the root of mean square error (RMSE) was only 1.18 respiration per minute (RPM). Excluding four outlier measurements from 145 subjects’ dataset, the RMSE for the remaining 141 subjects was 1.76 RPM.

Conclusions

This study results demonstrated the proof of concept that the device measures key vital signs among newborn, infants and children &lt;5 years, using a reusable single-based probe.

Key messages

Automated diagnostic device measures key multiple key vital signs (SPO2, respiratory rate, temperature) among newborn, infant and children &lt;5 years. Such an automated device may have potential to ensure accuracy in diagnosis, increasing adherence to recommended guidelines, optimizing use of antibiotics, and reducing unnecessary referrals.

Barriers and enablers for practicing kangaroo mother care (KMC) in rural Sindh, Pakistan

Background

More than 2.5 million newborns die each year, contributing to 47% of under 5 mortality worldwide. Globally, Every Newborn Action Plan has emphasized on Kangaroo Mother Care (KMC) as an essential component of neonatal health initiatives. An international joint policy statement and endorsement from health professional associations also recommended practicing KMC for newborn care.

Methods

We conducted a qualitative study with 12 in-depth interviews (IDIs) and 14 focus group discussion (FGD) sessions, in two health facilities of Sindh, Pakistan during October-December 2016, to understand the key barriers and enablers to a mother’s ability to practice KMC and the feasibility of implementing and improving these practices.

Results

Our study findings revealed that community stakeholders were generally aware of health issues especially related to maternal and neonatal health. Both the health care providers and managers were supportive of implementing KMC in their respective health facilities as well as for continuous use of KMC at household level. In order to initiate KMC at facility level, study respondents emphasized on strengthening of availability and quality of services as well as training of health providers as critical prerequisites. Also in order to continue practicing KMC at household level, engaging the community and establishing functional referral linkage between community and facilities were focused issues in facility and community level FGDs and IDIs. The study participants considered it feasible to initiate KMC practice at health facility and to continue practicing at home after returning from facility.

Conclusions

Ensuring facility readiness to initiate KMC, improving capacity of health providers, coupled with strengthened community mobilization, and targeting specific audiences may help policy makers and program planners to initiate KMC practice at health facility and keep KMC practice continued at household level.

Key messages

Introducing KMC at health facility followed by continuing practice at household level is feasible, even in a religiously conservative setting like Pakistan. Facility readiness, improved health workers’ capacity coupled with strengthened community mobilization targeting specific audiences could help scaling up this public health intervention in Pakistan.

Umbilical cord care through community-based distribution of chlorhexidine in rural Sindh, Pakistan

Background

Unsafe practices such as cutting umbilical cord with unsterilized instruments and application of harmful substances, are in practice in many rural areas of Pakistan, and associated with high risk of neonatal sepsis and mortality.

Methods

We conducted an implementation research in 2015 in Tharparkar district, in Sindh province of Pakistan to understand the feasibility and acceptability of community-based distribution of chlorhexidine (CHX) in rural Pakistan. For this cohort group-only study, 225 lady health workers (LHWs) enrolled 495 pregnant women. Enrolled women received 4% CHX gel and user’s instructions for newborn cord care. The LHWs also counseled women on the benefits and correct use of CHX. Study enumerators collected data from CHX receiving women 3 times: at around 2 weeks before delivery, within 24 hours after delivery, and on the 8th day after delivery. We implemented this study jointly in collaboration with Ministry of Health in Sindh province, Pakistan.

Results

Among enrolled participants, 399 women (81%) received only the first visit, 295 women (60%) received first two visits and 261 women (53%) received all three visits by enumerators. Among 399 women, who received CHX gel, counseling on its use and were respondent to the first round data collection, 78% remembered that the CHX gel to be applied to cord stump and surrounding areas immediately after birth; but less than a third (29%) forgot the need to keep the cord clean and dry. Among 295 respondents in the first two rounds of data collection, who delivered at home, 97% applied CHX to cord stump on the first day.

Conclusions

Community-based CHX distribution by LHWs, along with counseling to recipient women, resulted in a high rate of cord care with CHX among newborn delivered at home. Results from this study may help program implementers to consider expanding this intervention for improving newborn cord care on the first day of life in Pakistan.

Key messages

Community-based distribution of chlorhexidine for newborn cord care appears as highly acceptable and feasible in rural communities in Pakistan. Relevant program policy supporting community-based CHX distribution along with counseling by LHW may help expanding coverage of newborn cord care in rural communities in Pakistan.