| Elective surgery cancellations due to the COVID-19 pandemic: global predictive modelling to inform surgical recovery plans Journal of British Surgery 107 (11), 1440-1449, 2020 | 1510 | 2020 |
| Timing of surgery following SARS-CoV-2 infection: an international prospective cohort study COVIDSurg Collaborative Anaesthesia 76 (6), 748-758, 2021 | 555* | 2021 |
| Global patient outcomes after elective surgery: prospective cohort study in 27 low-, middle-and high-income countries BJA: British Journal of Anaesthesia 117 (5), 601-609, 2016 | 537 | 2016 |
| Surgical site infection after gastrointestinal surgery in high-income, middle-income, and low-income countries: a prospective, international, multicentre cohort study A Bhangu, AO Ademuyiwa, ML Aguilera, P Alexander, SW Al-Saqqa, ... The Lancet Infectious Diseases 18 (5), 516-525, 2018 | 427 | 2018 |
| Short-term safety outcomes of mastectomy and immediate implant-based breast reconstruction with and without mesh (iBRA): a multicentre, prospective cohort study S Potter, EJ Conroy, RI Cutress, PR Williamson, L Whisker, S Thrush, ... The Lancet Oncology 20 (2), 254-266, 2019 | 180 | 2019 |
| The surgical safety checklist and patient outcomes after surgery: a prospective observational cohort study, systematic review and meta-analysis TEF Abbott, T Ahmad, MK Phull, AJ Fowler, R Hewson, BM Biccard, ... British journal of anaesthesia 120 (1), 146-155, 2018 | 165 | 2018 |
| Serum irisin levels are lower in patients with breast cancer: association with disease diagnosis and tumor characteristics X Provatopoulou, GP Georgiou, E Kalogera, V Kalles, MA Matiatou, ... BMC cancer 15, 1-9, 2015 | 137 | 2015 |
| De Garengeot’s hernia: a comprehensive review V Kalles, A Mekras, D Mekras, I Papapanagiotou, W Al-Harethee, ... Hernia 17, 177-182, 2013 | 135 | 2013 |
| Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries SR Knight, CA Shaw, R Pius, TM Drake, L Norman, AO Ademuyiwa, ... The Lancet 397 (10272), 387-397, 2021 | 129 | 2021 |
| SARS-CoV-2 infection and venous thromboembolism after surgery: an international prospective cohort study. C COVIDSurg, C GlobalSurg Anaesthesia 77 (1), 28-39, 2022 | 100 | 2022 |
| Pooled analysis of WHO Surgical Safety Checklist use and mortality after emergency laparotomy Journal of British Surgery 106 (2), e103-e112, 2019 | 80 | 2019 |
| Gastrointestinal schwannomas: a rare but important differential diagnosis of mesenchymal tumors of gastrointestinal tract A Mekras, V Krenn, A Perrakis, RS Croner, V Kalles, C Atamer, ... BMC surgery 18, 1-7, 2018 | 79 | 2018 |
| The current status of positron emission mammography in breast cancer diagnosis V Kalles, GC Zografos, X Provatopoulou, D Koulocheri, A Gounaris Breast Cancer 20, 123-130, 2013 | 69 | 2013 |
| Concurrent versus two-stage hybrid procedures in the treatment of thoracoabdominal aortic aneurysms CN Bakoyiannis, KP Economopoulos, VC Kalles, E Papalambros Journal of Endovascular Therapy 16 (6), 757-758, 2009 | 63* | 2009 |
| Clinical significance of de Garengeot's hernia: a case of acute appendicitis and review of the literature T Piperos, V Kalles, Y Al Ahwal, E Konstantinou, G Skarpas, ... International Journal of Surgery Case Reports 3 (3), 116-117, 2012 | 61 | 2012 |
| Operating personnel safety during the administration of hyperthermic intraperitoneal chemotherapy (HIPEC) I Kyriazanos, V Kalles, A Stefanopoulos, J Spiliotis, F Mohamed Surgical Oncology 25 (3), 308-314, 2016 | 59 | 2016 |
| Digit ratios and relation to myocardial infarction in Greek men and women I Kyriakidis, P Papaioannidou, V Pantelidou, V Kalles, K Gemitzis Gender medicine 7 (6), 628-636, 2010 | 59 | 2010 |
| Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery Journal of British Surgery 107 (2), e161-e169, 2020 | 57 | 2020 |
| Anatomic variations of the right hepatic duct: results and surgical implications from a cadaveric study T Mariolis-Sapsakos, V Kalles, K Papatheodorou, N Goutas, ... Anatomy research international 2012 (1), 838179, 2012 | 55 | 2012 |
| Effects of pre‐operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study COVIDSurg Collaborative, GlobalSurg Collaborative, D Nepogodiev, ... Anaesthesia 76 (11), 1454-1464, 2021 | 43 | 2021 |
