This study supports the proposition that ADA determination is a fast and discriminating test for diagnosing PTB with an optimal cut-off value of 39 IU/L.

Summary and background data Recent coronavirus outbreak and “stay at home” policies have accelerated the implementation of virtual healthcare. Many surgery departments are implementing telemedicine to enhance remote perioperative care. However, concern still arises regarding the safety of this modality in postoperative follow-up after gastrointestinal surgery. The aim of the present prospective study is to compare the use of telemedicine clinics to in-person follow-up for postoperative care after gastrointestinal surgery during COVID-19 outbreak. Methods Prospective study that included all abdominal surgery patients operated since the COVID-19 outbreak. On discharge, patients were given the option to perform their postoperative follow-up appointment by telemedicine or by in-person clinics. Demographic, perioperative, and follow-up variables were analyzed. Results Among 219 patients who underwent abdominal surgery, 106 (48%) had their postoperative follow-up using telemedicine. There were no differences in age, gender, ASA score, and COVID-19 positive rate between groups. Patients who preferred telemedicine over in-person follow-up were more likely to have undergone laparoscopic surgery (71% vs. 51%, P = 0.037) and emergency surgery (55% vs. 41%; P = 0.038). Morbidity rate for telemedicine and in-person group was 5.7% and 8%, ( P = 0.50). Only 2.8% of patients needed an in-person visit following the telemedicine consult, and 1.9% visited the emergency department. Conclusions In the current pandemic, telemedicine follow-up can be safely and effectively performed in selected surgical patients. Patients who underwent laparoscopic and emergency procedures opted more for telemedicine than in-person follow-up.

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