This is a carousel. Use Next and Previous buttons to navigateTexas Medical Center hospitals stopped updating key metrics showing the stress rising numbers of COVID-19 patients were placing on their facilities for more than three days, rattling policymakers and residents who have relied on the information to gauge the spread of the coronavirus.The institutions — which together constitute the world’s largest medical complex — reported Thursday that their base intensive care capacity had hit 100 percent for the first time during the pandemic and was on pace to exceed an “unsustainable surge...…This is a carousel. Use Next and Previous buttons to navigateTexas Medical Center hospitals stopped updating key metrics showing the stress rising numbers of COVID-19 patients were placing on their facilities for more than three days, rattling policymakers and residents who have relied on the information to gauge the spread of the coronavirus.The institutions — which together constitute the world’s largest medical complex — reported Thursday that their base intensive care capacity had hit 100 percent for the first time during the pandemic and was on pace to exceed an “unsustainable surge...WW…