So I’ve been pretty skeptical about people sewing protective face masks at home. And, as with a lot of things we don’t have all the data that we wish we had. So…I’m putting this scientific evidence out there and encouraging you to contribute to this blog by adding other scientific data.
Nevertheless, the expert opinion at CDC is that they are in the “Better Than Nothing” category and gives this additional advice. “In settings where N95 respirators are so limited that routinely practiced standards of care for wearing N95 respirators and equivalent or higher level of protection respirators are no longer possible, and surgical masks are not available, as a last resort, it may be necessary for HCP to use masks that have never been evaluated or approved by NIOSH or homemade masks. It
may be considered to use these masks for care of patients with COVID-19, tuberculosis, measles, and varicella. However, caution should be exercised when considering this option.1,2“
Anecdotally, providers are using them to extend the life of other masks or N95s. Women are also making some with little pockets for other filters, and a material called HANIBON that can be purchased online is used often on the outer layer of disposable masks and works to block out dust and fluids from entering.
- Dato, VM, Hostler, D, and Hahn, ME. Simple Respiratory Maskexternal icon, Emerg Infect Dis. 2006;12(6):1033–1034.
- Rengasamy S, Eimer B, and Shaffer R. Simple respiratory protection-evaluation of the filtration performance of cloth masks and common fabric materials against 20-1000 nm size particlesexternal icon, Ann Occup Hyg. 2010;54(7):789-98.
“Sew” there you have it. Expert opinion is that as a last resort you may use inadequately tested cloth masks if it is all you have. I am grateful for all those sewists out there responding to medical center calls to supply them with cotton and elastic homemade masks, and sending out the patterns to do so. Field medicine.
CDC also says “The filters used in modern surgical masks and respirators are considered “fibrous” in nature—constructed from flat, nonwoven mats of fine fibers” If this is true then would nonwoven interfacing improve the homemade masks?
Enrolled in an MSN….and wondering what to do for an evidence-based clinical project?
Recently a former student contacted me about that very question. Part of my response to her is below:
“One good place to start if you are flexible on your topic is to look through Cochrane Reviews, Joanna Briggs Institute, AHRQ Clinical Practice Guidelines, or similar for very strong evidence on a particular topic and then work to move that into practice in some way. (e.g., right now I’m involved in a project on using evidence of a Cochrane review on the benefits of music listening–not therapy–in improving patient outcomes like pain, mood, & opioid use).
Once you narrow the topic it will get easier. Also, you can apply only the best evidence you have, so if there isn’t much research or other evidence about the topic you might have to tackle the problem from a different angle” or pick an area where there IS enough evidence to apply.
Medscape just came out with Eric J. Topol article: 15 Studies that Challenged Medical Dogma in 2019. Critically check it out to practice your skills in applying evidence to practice. What are the implications for your practice? Are more or stronger studies needed before this overturning of dogma becomes simply more dogma? Are the resources and people’s readiness there for any warranted change? If not, what needs to happen? What are the risks of adopting these findings into practice?
TIME TO REPUBLISH THIS ONE:
Below is my adaptation of one of the clearest representations that I have ever seen of when the roads diverge into quality improvement, evidence-based practice, & research. Well done, Dr. E.Schenk PhD MHI, RN-BC!
A pilot study is to research what a trial balloon is to politics.
In politics, a trial balloon is communicating a law or policy idea via media to see how the intended audience reacts to it. A trial balloon does not answer the question, “Would this policy (or law) work?” Instead a trial balloon answers questions like “Which people hate the idea of the policy/law–even if it would work?” or “What problems might enacting it create?” In other words, a trial balloon answers questions that a politician wants to know BEFORE implementing a policy so that the policy or law can be tweaked to be successfully put in place.
In research, a pilot study is sort of like a trial balloon. It is “a small-scale test of the methods and procedures” of a planned full-scale study (Porta, Dictionary of Epidemiology, 5th edition, 2008). A pilot study answers questions that we want to know BEFORE doing a larger study, so that we can tweak the study plan and have a successful full-scale research project. A pilot study does NOT answer research questions or hypotheses, such as “Does this intervention work?” Instead a pilot study answers the question “Are these research procedures workable?”
A pilot study asks & answers: “Can I recruit my target population? Can the treatments be delivered per protocol? Are study conditions acceptable to participants?” and so on. A pilot study should have specific measurable benchmarks for feasibility testing. For example if the pilot is finding out whether subjects will adhere to the study, then adherence might be defined as “70 percent of participants in each [group] will attend at least 8 of 12 scheduled group sessions.” Sample size is based on practical criteria such as budget, participant flow, and the number needed to answer feasibility questions (ie. questions about whether the study is workable).
A pilot study does NOT: Test hypotheses (even preliminarily); Use inferential statistics; Assess safety of a treatment; Estimate effect size; Demonstrate safety of an intervention.
A pilot study is not just a small study.
Next blog: Why this matters!!
For more info read the source of all quotes in this blog: Pilot Studies: Common Uses and Misuses @ https://nccih.nih.gov/grants/whatnccihfunds/pilot_studies
I’m not a New Year’s resolution person. I used to be and then I realized that I wanted to hit the restart button more often than every 365 days. So…my aim for this blog remains pretty much unchanged: Make research processes and ideas understandable for every RN.
Although “to be simple is difficult,” that’s my goal. Let me know what’s difficult for you in research, because it probably is for others as well. Let’s work on the difficult together so that you can use the BEST Evidence in your practice.
The 2019 journey begins today, and tomorrow, and the tomorrows after that!
FOR MORE: Go to PubMed. Search for a topic of interest. Send me the article & we’ll critique together.