A LONG explanatory 🧵 on ICU 'capacity' & 'flow' in Saskatchewan & why we need MULTIPLE interventions to avoid compromised care for ALL #SK citizens & triage.
I'm going to use an analogy of ICU capacity = bathtub. Patients = water. Health care system = house.
Water is running into the bathtub. That's all the patients who need ICU care in Saskatchewan. Some have COVID, some don't. The patients have now overflowed our ICUs.
To cope, we've built walls up on our bathtub to hold more water. That's our 'surge' capacity.
We can only build walls up on the tub so much, because there's limits on what can be done safely w/ availability of specialized staff, especially nursing & respiratory therapists (who support ventilated persons).
Every bathtub has a drain. In normal times, there's a predictable flow of patients in (the water tap) and out (the drain), so that the water level doesn't get too high.
The problem with COVID+ persons, is that they take a LONG time to get out of ICU.
We're transferring COVID+ patients out of our ICUs, thousands of kilometers away to Ontario. That's like taking a bucket and pulling water out of the tub.
It provides TEMPORARY relief so we can manage more patients.
Thankfully, we're getting @CanadianForces personnel likely next week.
Those additional specialized staff will allow us to build our walls on the tub a bit higher, or reinforce the walls that exist as so many of our frontline HCWs are struggling & burning out.
Private indoor gathering restrictions, capacity limits in public venues, distancing measures, work from home mandates, vaccine mandates... ALL of those measures help to prevent more COVID cases, and slow the water tap running into our tub.
We've watched as the tub has overflowed, the house
(our healthcare system) is flooding fast, and ONLY THEN called for staffing help & ICU transfers to Ontario.
But all of those measures are temporary. We can't keep flying everyone out of province forever.
Meanwhile, the rest of Canada are watching us from their dry houses, except Alberta, who flooded a few weeks ago along with us and are picking up the pieces.
Ontario has kept tight control on their taps. They're helping us in our time of need - thank you, #ON.
So the question that our public health & medical leaders can't answer is simple. Why, when the house is flooding, do we not turn off (or at least slow down) the taps?
The longer we wait, the more significant the damage both short- and long-term.
FYI, monoclonal antibody therapy has no real place in this analogy. Given broken testing dynamics & the logistics required, 'early treatment' will do very little to help us in short-term.
I'd liken monoclonal therapy to a sponge, basically. A very small one.
Vaccinations & boosters WILL help slow the water, but only in longer-term, not RIGHT NOW.
What WILL help RIGHT NOW is private indoor gathering restrictions, capacity limits on venues, and other approaches to limit human contact, especially for those unvaccinated.
Between February 1-26, 143 Saskatchewan citizens have died from #COVID19, despite Omicron being "less severe".
That's an INSANELY high number.
Saskatchewan's most deadly month thus far was October 2021, when 156 people died during our horrific Delta wave. /1
As highlighted by @DrKyle, Saskatchewan's death rate from #COVID19 is more than DOUBLE that of the 2nd highest province, Manitoba.
No province is even remotely close in terms of deaths per capita at this point with Omicron. So embarrassingly bad. /2
With 2 days left, February 2022 might not technically be Saskatchewan's deadliest month during this pandemic, but remember... there's only 28 days in February vs 31 days in October.
If you pro-rate 5.5 deaths per day (February 2022's deaths per day) x 31 days? *170* deaths. /3
KEY POINTS:
- 37 deaths over 7 days. 1 b/w 20-39, all others >= 40
- Hospitalizations & ICU admissions decreasing (phew)
- Weekly test positivity 14.4% (last wk ~20%)
- ALL Omicron (no breakdown of BA.1 vs BA.2)
Brief 🧵 /1
Let's start with key data around hospitalizations & ICU admissions.
Week-by-week hospitalizations down 9% to 372, ICU down 18% to 27. Slowly coming down, thankfully.
Of those with known COVID status, 42% in hospital/ICU "due to COVID", 58% "incidental". /2
We can see that overall hospital admissions per day definitely decreasing now across all regions of Saskatchewan, but it's a relatively slow decrease, likely driven by limited protections we have in place provincially.
"Hi Alex, what's BA.2? Is it a little bad or is it REALLY bad?"
BA.2 is a sub-lineage of Omicron. The 'original' lineage of Omicron is designated as BA.1 & remains the dominant strain circulating in most parts of Canada currently.
A brief 🧵 of what we know thus far. /1
BA.1 & BA.2 are both classified by @WHO as Omicron, but are distinct viruses. See the phylogenetic diagram below (thx @kallmemeg).
BA.2 has over 25 mutations that differentiate it vs BA.1.
Many questions still exist around how similar BA.1 & BA.2 are clinically. /2
Danish pre-print data comparing transmission of BA.1 vs BA.2 in household settings suggests BA.2 IS more transmissible than BA.1.
BA.2 also LIKELY possess more immune-evasive properties vs BA.1 that could reduce vaccine efficacy. /3