RESUMO
La obesidad afecta sobre todo a hombres y mujeres jóvenes, tanto en países desarrollados como en vías de desarrollo. Los tratamientos farmacológicos han demostrado ser ineficaces, quedando la cirugía como única opción terapéutica. Los procedimientos bariátricos, a pesar de realizarse por cirugía mínimamente invasiva, no están libres de presentar complicaciones posoperatorias. El presente artículo tiene el objetivo de realizar un análisis crítico de las complicaciones posoperatorias a corto y largo plazo de la cirugía bariátrica. Se efectuó una revisión bibliográfica de reportes y series de casos, así como de revisiones bibliográficas; en idioma inglés, español y portugués, publicados desde enero de 2005 hasta a noviembre de 2022, en revistas nacionales e internacionales indexadas en bases de datos reconocidas. Las palabras clave empleadas fueron: cirugía laparoscópica, cirugía bariátrica y complicaciones posoperatorias. Los procedimientos quirúrgicos más realizados y de mayor aceptación son la manga gástrica y el bypass gástrico. Las principales complicaciones a corto plazo son: fuga de la anastomosis, fallo de la línea de grapas, fístulas y sangrado gastrointestinal. Las complicaciones a largo plazo están dadas por: anemia, déficit de vitaminas y minerales, estenosis de la manga gástrica, hernias internas y reganancia del peso corporal.
Obesity affects mostly young men and women, both in developed and developing countries. Pharmacological treatments have proven to be ineffective, leaving surgery as the only therapeutic option. Bariatric procedures, despite being performed by minimally invasive surgery, are not free from presenting postoperative complications. The objective of this article is to carry out a critical analysis of the short and long-term postoperative complications of bariatric surgery. A bibliographic review of case reports and series, as well as bibliographic reviews was carried out; in English, Spanish and Portuguese, published from January 2005 to November 2022, in national and international journals indexed in recognized databases. The keywords used were: laparoscopic surgery, bariatric surgery and postoperative complications. The most widely performed and widely accepted surgical procedures are the gastric sleeve and gastric bypass. The main short-term complications are: anastomotic leakage, staple line failure, fistulas and gastrointestinal bleeding. Long-term complications are given by: anemia, vitamin and mineral deficiency, gastric sleeve stenosis, internal hernias and gain of body weight.
RESUMO
Endonasal surgery is a minimally invasive approach for the removal of pituitary tumors (sarcomas). In this type of procedure, the surgeon has to complete the surgical maneuvers for sarcoma resection with extreme precision, as there are many vital structures in this area. Therefore, the use of robots for this type of intervention could increase the success of the intervention by providing accurate movements. Research has focused on the development of teleoperated robots to handle a surgical instrument, including the use of virtual fixtures to delimit the working area. This paper aims to go a step further with a platform that includes a teleoperated robot and an autonomous robot dedicated to secondary tasks. In this way, the aim is to reduce the surgeon's workload so that he can concentrate on his main task. Thus, the article focuses on the description and implementation of a navigator that coordinates both robots via a force/position control. Finally, both the navigation and control scheme were validated by in-vitro tests.