Complications of robotic and laparoscopic urologic surgery relevant to anesthesia

Technology keeps advancing in this era allowing surgery to become less invasive in many surgical sciences. Besides these technological advances, minimally invasive procedures such as laparoscopy and robotic assisted laparoscopy are preferred widely around the globe by both surgeons and patients. Because of the increasing demand to laparoscopy and robotic surgery, anesthetists also should adapt to these specific surgical procedures. Carbon dioxide (CO2) insufflation is applied in these procedures in order to provide working space and exposure to target organs. CO2 insufflation (pneumoperitoneum if applied intrabdominally) and positional maneuvers such as steep Trendelenburg position is used in urologic laparoscopy and robotic surgery, which have vital effects on patient’s physiology regarding cardiovascular, respiratory, renal, ocular and neurological systems. Special positions and unique surgical tools used in these procedures may hinder vital interventions such as cardiopulmonary resuscitation and open conversion. Comprehension of these pathophysiological effects and specific considerations is crucial to detect, to prevent and to manage serious complications that may occur during surgery

Epidemiology of surgery associated acute kidney injury (EPIS-AKI): a prospective international observational multi-center clinical study

Purpose: The incidence, patient features, risk factors and outcomes of surgery-associated postoperative acute kidney injury (PO-AKI) across different countries and health care systems is unclear. Methods: We conducted an international prospective, observational, multi-center study in 30 countries in patients undergoing major surgery (> 2-h duration and postoperative intensive care unit (ICU) or high dependency unit admission). The primary endpoint was the occurrence of PO-AKI within 72 h of surgery defined by the Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Secondary endpoints included PO-AKI severity and duration, use of renal replacement therapy (RRT), mortality, and ICU and hospital length of stay. Results: We studied 10,568 patients and 1945 (18.4%) developed PO-AKI (1236 (63.5%) KDIGO stage 1500 (25.7%) KDIGO stage 2209 (10.7%) KDIGO stage 3). In 33.8% PO-AKI was persistent, and 170/1945 (8.7%) of patients with PO-AKI received RRT in the ICU. Patients with PO-AKI had greater ICU (6.3% vs. 0.7%) and hospital (8.6% vs. 1.4%) mortality, and longer ICU (median 2 (Q1-Q3, 1-3) days vs. 3 (Q1-Q3, 1-6) days) and hospital length of stay (median 14 (Q1-Q3, 9-24) days vs. 10 (Q1-Q3, 7-17) days). Risk factors for PO-AKI included older age, comorbidities (hypertension, diabetes, chronic kidney disease), type, duration and urgency of surgery as well as intraoperative vasopressors, and aminoglycosides administration. Conclusion: In a comprehensive multinational study, approximately one in five patients develop PO-AKI after major surgery. Increasing severity of PO-AKI is associated with a progressive increase in adverse outcomes. Our findings indicate that PO-AKI represents a significant burden for health care worldwide