BACKGROUND: During the coronavirus disease 2019 (COVID-19) outbreak, a general decrease in surgical activity was observed. There is perception that this phenomenon has involved also surgical emergency, but no extensive data have been presented to date. The aim of this study was to analyze the real number of admissions and procedures for emergency surgical disease during COVID-19 pandemic. METHODS: This is a multicenter study including 18 general surgery units performing emergency surgery in hospitals of the “Red Zone” in Lombardy. Data about admissions from emergency department and surgical emergency procedures performed during March 2019 and March 2020 were collected in an online database. Additional data were collected according to the different indications for surgical treatment. The primary outcomes were the overall rate of admissions for emergent surgical disease and the overall rate of emergency surgical procedures in the study periods. The secondary outcome was the overall surgical rates (among all the diagnosed surgical diseases). RESULTS: Emergency surgical admissions and surgical operations significantly decreased with a fall in value of 45% (p < 0.001) and 41% (p = 0.001), respectively. This reduction was confirmed by the analysis according to different surgical indications, with the exceptions of admissions and operations for gastrointestinal bleeding and operations for abdominal trauma. The overall ratio between surgical procedures and diseases was not significantly different (54% vs. 63%; p = 0.619). This ratio was significantly different only for bowel obstruction and for gastrointestinal perforation. CONCLUSIONS: It seems correct to consider “true” the dramatic decrease of surgical problems during COVID-19 outbreak, despite any therapeutic strategies and logistic difficulties. LEVEL OF EVIDENCE: Epidemiological, level III.

Oxidative stress (OS) can have an impact in the pathogenesis and in the progression of thyroid cancer. We investigated the levels of reactive oxygen species (ROS) in 50 malignant and benign thyroid lesions and 41 normal tissues, and correlated them with the thyroid differentiation score-TDS and the clinico-pathologic features. NOX4 expression, GPx activity and the genetic pattern of tumors were evaluated. In malignant and benign lesions, ROS generation and NOX4 protein expression were higher than in normal tissues. Follicular (FTCs) and anaplastic/poorly differentiated cancers had increased OS relative to papillary tumors (PTCs). Moreover, OS in FTCs was higher than in follicular adenomas. Mutated PTCs showed increased OS compared with non-mutated PTCs. In malignant tumors, OS was inversely correlated with TDS, and directly correlated with tumor stage and ATA risk. GPx activity was increased in tumors compared with normal tissues, and inversely correlated to OS. In conclusion, our data indicate that thyroid tumors are exposed to higher OS compared with normal tissues, while showing a compensative increased GPx activity. OS correlates with tumor aggressiveness and mutations in the MEK-ERK pathway in PTC. The inverse correlation between OS and TDS suggests that ROS may repress genes involved in thyroid differentiation.

Worldwide, the indications for thyroid surgery have been continuously extended among elderly patients in the last 20 years. The balance between treatment indication and surgical risk is certainly an interesting topic for every thyroid surgeon. This paper is a review of recent literature from January 2005 up to April 2017. We analyzed three principal subjects: indications for surgical treatment, medical complications and surgical complications. We can summarize the conclusions of our analysis, stating that age could not be considered as an absolute factor, but in relation to the comorbidities and the general clinical condition of the patient. Special risk indices dedicated to geriatric patients could be very useful in order to facilitate the decision-making process; however, relying on the current knowledge, we could state that there is value in providing surgery to geriatric patients in highly specialized and high-volume centers, where access to technology and its systematic use, coupled with surgeons’ experience, could certainly avail the geriatric patient management.