A Planning Playbook for Opening a New Orthopedic ASC
The ASC market continues its rapid growth. In 2023, roughly 116 new ASCs opened in the U.S., many of which were orthopedic-specific in nature....
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By: Edward Septimus
Published: 10/7/2020
Surgical site infections (SSIs) are expensive adverse events for surgical facilities, especially with procedures like total joint replacements and complex spine cases. While SSI risk is very low, complications are devastating for everyone involved. An implant infection is quite significant because typically the implant must be removed, so it becomes a costly multiple-stage procedure and the patient may not emerge with a good result. It's important, then, to realize that the simple administration of nasal decolonization before surgery is an extremely inexpensive preventative intervention. If the patient is colonized with S. aureus, the nares are far and away the most common site.
The problem right now is a lack of consensus on what the most effective and reliable nasal decolonization regimen actually is. Four major buckets of therapies enjoy at least some peer-reviewed data to suggest potential efficacy and use. Mupirocin is the traditional treatment. Nasal povidone-iodine (PI) is a distant second in terms of number of publications, followed by nasal alcohol-based preps and photodynamic therapy. Given the limited peer-reviewed information on the true efficacy of the mupirocin alternatives, it's too early to say which is the best. Here, we'll take a closer look at all four in the hopes of better informing your facility's nasal decolonization regimen.
Remember, as an outpatient facility, you possess an advantage: procedures are elective. That means you have the ability to plan ahead for each patient's nasal decolonization — a process that can take several days to complete before surgery.
The challenge with mupirocin is that it requires screening at least a week in advance, and then the patient has to strictly follow the regimen at home for five days, which presents the risk of noncompliance or incomplete compliance. There's also growing concern about mupirocin resistance, resulting from its wide use over a long period of time. Mupirocin's colonization eradication rate typically is extremely high — 93% to 95% ?— but if there's high-level mupirocin resistance, you often get no reduction in colonization. With intermediate or low-level resistance, there may be a transient reduction in the number of organisms, but a quick rebound takes place at the end of the first week. In terms of surgical prophylaxis, we still don't know if a transient reduction is good enough.
I don't believe there's been a major shift away from mupirocin yet, but there's a trend toward trying to find something better and easier to use. In the next year or two, a number of studies should be published that help clarify whether we're seeing increased mupirocin resistance. Meanwhile, there's renewed interest in evaluating newer nasal agents that can serve as alternative methods of nasal decolonization. The action centers around PI, alcohol-based swabs and an interesting technique being used in Canada called photodynamic therapy.
Keep in mind that all PI isn't created equal, however. At least three companies market a PI product indicated for intranasal use. These intranasal versions of PI contain chemicals that help it attach better to the nasal mucosa, which is where the mechanism of action is. There's a cost issue here, unfortunately: These specialized PI preparations are multiple times more expensive than generic over-the-counter PI swabs. However, one study shows that, in terms of eradication rates, the intranasal preparations are better than the less expensive preparations. If someone asks me, I tell them to stick with the intranasal PI preparation until someone proves over-the-counter versions are more effective. Sure, it's more expensive than generic PI, but it's not nearly as expensive as an SSI.
These four regimens are the most viable nasal decolonization methods that have been shown to be effective. But again, none of them has the same level of evidence or the same number of publications that mupirocin has.
The nasal decolonization picture will likely become clearer in the next couple of years.
There's a fifth possibility — retapamulin, which is currently used for skin and soft tissue infections. It has lost favor, however, mostly due to bleeding and irritation associated with its intranasal use, and there's still very limited information about its use for nasal colonization. It really does seem to work, though, so I think it's still a potential option down the road.
Nasal decolonization is just one part of a larger SSI prevention protocol. From those of us who are veterans in hospital infection prevention for years, heed this advice: If you want good results, perform evidence-based interventions consistently well. I was involved in a published study that looked at 20 hospitals that were performing total joints or open heart surgery. Our analysis showed that those facilities that complied fully with a robust, evidence-based SSI prevention protocol — screening, decolonization, administering the appropriate surgical antibiotics for prophylaxis — had lower infection rates than those that were partially compliant. It's about doing the small things consistently well.
The SSI prevention chain is only as strong as its weakest link, and with nasal decolonization methods still developing, it's important to strengthen that link in the chain as our knowledge of each agent and approach expands. I anticipate that the nasal decolonization picture will likely become clearer in the next couple of years. For now, the important thing is to fully understand how each agent works and follow their related evidence-based protocols to the letter. OSM
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