Incidence of Barotrauma in Patients With COVID-19 Pneumonia During Prolonged Invasive Mechanical Ventilation - A Case-Control Study.

BACKGROUND: SARS-CoV2 can cause pulmonary failure requiring prolonged invasive mechanical ventilation (MV). Lung protective ventilation strategies are recommended in order to minimize ventilator induced lung injury. Whether patients with COVID-19 have the same risk for complications including barotrauma is still unknown. Therefore, we investigated barotrauma in patients with COVID-19 pneumonia requiring prolonged MV. METHODS: All patients meeting diagnosis criteria for ARDS according to the Berlin Definition, with PCR positive SARS-CoV2 infection and prolonged mechanical ventilation, defined as ≥2 days, treated at our ARDS referral center between March and April 2020 were included in a retrospective registry analysis. Complications were detected by manual review of all patient data including respiratory data, imaging studies, and patient files. RESULTS: A total of 20 patients with severe COVID-19 pulmonary failure (Overall characteristics: median age: 61 years, female gender 6, median duration of MV 22 days) were analyzed. Eight patients (40%) developed severe barotrauma during MV (after median 18 days, range: 1-32) including pneumothorax (5/20), pneumomediastinum (5/20), pneumopericard (1/20), and extended subcutaneous emphysema (5/20). Median respirator settings 24 hours before barotrauma were: Peak inspiratory pressure (Ppeak) 29 cm H2O (range: 27-35), positive end-expiratory pressure (PEEP) 14 cm H2O (range: 5-24), tidal volume (VT) 5.4ml/kg predicted body weight (range 0.4-8.6), plateau pressure (Pplateau) 27 cm H2O (range: 19-30). Mechanical ventilation was significantly more invasive on several occasions in patients without barotrauma. CONCLUSION: Barotrauma in COVID-19 induced respiratory failure requiring mechanical ventilation was found in 40% of patients included in this registry. Our data suggest that barotrauma in COVID-19 may occur even when following recommendations for lung protective MV.

A research utilisation framework for informing global health and development policies and programmes.

A shift in the culture and practice of health and development research is required to maximise the real-world use of evidence by non-academic or non-research-oriented audiences. Many frameworks have been developed to guide and measure the research utilisation process, yet none have been widely applied. Some frameworks are simplified to an unrealistic linear representation while others are rendered overly complex and unusable in an attempt to capture all aspects of the research utilisation process. Additionally, many research utilisation frameworks have focused on the policy development process or within a clinical setting, with less application of the translation process at the programme level. In response to this gap - and drawing from over a decade of experience implementing research utilisation strategies - we developed a simple, four-phase framework to guide global health and development efforts that seek to apply evidence to policies and programmes. We present a detailed description of each phase in our framework, with examples of its relevance and application illustrated through our own case study experiences in global health. We believe the utility of this framework extends beyond the health sector and is relevant for maximising use of evidence to achieve the Sustainable Development Goals.

Venovenous Extracorporeal Membrane Oxygenation With Prophylactic Subcutaneous Anticoagulation Only: An Observational Study in More Than 60 Patients.

Extracorporeal lung support and therapeutic anticoagulation are dogmatically linked for most clinicians in fear of clotting of the extracorporeal circuit. In the last decade, however, we have learned that bleeding complications in the course of extracorporeal membrane oxygenation (ECMO) therapy are common and not occasionally limiting or fatal. Even though international guidelines lowered the PTT-target values, ECMO therapy without anticoagulation has only been reported sporadically in case reports heretofore. This monocentric, observational study was designed to evaluate a protocol for venovenous ECMO therapy without additional anticoagulation. Patients without former thrombotic events solely received thrombosis prophylaxis with 40 mg subcutaneous enoxaparin per day like every critical care patient. After approval by the local ethics committee (Albert-Ludwigs-University Freiburg ethics committee, EK 513/14) all consecutive patients treated with venovenous ECMO therapy since introduction of the protocol have been identified. Digital charts of the patients have been evaluated with special regard to bleeding and thrombotic or embolic events or breakdown of the extracorporeal circuit. Sixty-one patients received venovenous ECMO therapy with prophylactic subcutaneous enoxaparin only. Median duration of ECMO therapy was 7 days (2-32). Overall 560 ECMO days have been observed. No system exchange because of thrombotic occlusion was necessary within the permitted 5 days run time of the centrifugal pump. Overall we identified thrombotic complications in four patients. In three of them centrifugal pump after a runtime of more than 5 days unexpectedly stopped completely because of thrombotic occlusion. In all cases pump exchange was performed promptly and patients did not incur hypoxic deficit. One other patient received substitution of blood products and coagulation factor concentrates because of severe bleeding and sustained myocardial infarction the day after. Only 18% of patients presented with essential clinical bleeding after 7 days of therapy. No fatal bleeding event and no intracranial hemorrhage was observed. Patients required only a third of blood product transfusion compared to published data. Venovenous ECMO therapy with prophylactic anticoagulation only was feasible in this study. It was not associated with an increased rate of system exchanges compared to regimes with therapeutic anticoagulation in registry data. It provides the potential to relevantly decrease the incidence of severe bleeding events and blood transfusion requirements. The apodictic adherence to anticoagulation in therapeutic dosage should be critically scrutinized in every patient.

Indicators for Monitoring and Evaluation of Community-Based Injectable Contraception: Multisourced Process and New Global Guidance.

For many women, convenient access to family planning in their communities provides the impetus they need to start and maintain use of a family planning method. The benefits of family planning task shifting, which allows community health workers (CHWs) to provide methods such as oral contraceptive pills and injectables within communities, were publicly recognized by the World Health Organization (WHO) in 2009. WHO's 2012 global guidelines on task sharing recommended CHW provision of injectable contraception, accompanied by targeted monitoring and evaluation (M&E); however, the term "targeted" was not defined. To fill this gap, we undertook a literature review, technical consultation, and case studies in Malawi, Senegal, and Uganda to inform our development of a list of M&E indicators, supporting guidance, and job aids to help strengthen community-based access to injectable contraception programs and their ability to follow WHO recommendations. We identified 4 essential indicators: there are enough CHWs certified to provide injectables to meet project goals, CHWs are being appropriately supervised to ensure client safety, the stock of injectables is reliable and can meet project goals, and clients are receiving injections.

Scaling up community provision of injectables through the public sector in Uganda.

This case study presents service monitoring data and programmatic lessons from scaling up Uganda's community-based distribution of depot medroxyprogesterone acetate (DMPA, marketed as Depo-Provera) to the public sector in two districts. We describe the process and identify implementation opportunities and challenges, including modifications to the service model. Analysis of monitoring data indicates that the number of women initiating DMPA with a community health worker (CHW) was 56 percent higher than the number of new DMPA acceptors served by clinics. Including continuing DMPA users, about three of every four DMPA clients chose CHWs as their service delivery point. CHW provision appears to be the preferred method of delivery for new DMPA users in this study, and may appeal even more to continuing clients. Lessons from scaling up in Uganda's public sector include recognizing the needs for ongoing assessment of support, a process to gain community "ownership," and spontaneous innovations to supplement CHW supervision.