ABSTRACT
Introduction: The SARS-CoV 2 pandemic has brought a high burden of disease. Its long-term repercussions are still under investigation. The objective of this report was to evaluate the occupational, clinical, and functional respiratory recovery at 3 months of patients hospitalized for COVID-19, related to the ventilatory therapy received. Material(s) and Method(s): Prospective cohort of 116 patients from the Hospital Naval Almirante Nef de Vina del Mar, Chile, with clinical and functional respiratory follow-up at 3 months. Result(s): Median follow-up 100 days. 75 men, Median age 60 years, 50% obese, 34.5% smokers and 13.8% with respiratory comorbidity. 16% had undergo rehabilitation. Dyspnea in 73.7% and fatigue in 50%. Only 54.8% returned to work. 65% who used oxygen therapy (O2) returned to work compared to 44% who used HFNC and 33.3% IMV. Return to normal life achieved was greater in the O2 group compared with HFNC group and IMV group (71.4% versus 17.5% and 11.1%). Pulmonary function tests were normal in 39 patients (33.6%). Normal DLCO and normal distance walked in 6 minutes were higher in the group that return to work. The HNFC group had an OR of 5.9 of DLCO alterations, while VMI group had an OR of 3.6 in relation to the group that received O2. Discussion(s): This cohort repeats risk factors and persistence of symptoms described in literature. DLCO alteration was the most frequently founding and to a greater extent than other reports. Conclusion(s): At 3 months of follow-up, work absenteeism, persistence of symptoms and respiratory functional alteration were frequently evidenced, especially in those who received ventilatory support.