Together, these changes can result in a wide range of cardiopulmonary distress, especially in older patients, or those who are morbidly obese or have chronic lung disease 3,4. CO2 absorption associated with acidosis.That tilt results in the cephalad movement of the diaphragm by abdominal contents and pneumoperitoneum, leading to increased peak airway pressure and a decrease in lung compliance by 25% – 40%, as well as a marked increase in the airway pressure 1. However, this clinical technique, wherein the body is supine and tilted so that the head is lower than the body and the legs, can lead to serious physiologic consequences, including significant negative cardiorespiratory effects. Trendelenburg position is routinely requested by surgeons during laparoscopic procedures to facilitate the exposure of the pelvis and the lower abdomen. Patient Positioning Results in Safety Concerns We’ll also take a look at the current state of research that backs PCV-VG as the superior ventilation strategy for laparoscopic procedures. In this article, we’ll discuss the unique challenges laparoscopic surgery presents, as well as the merits of PCV-VG compared to VCV. ![]() That is why more studies are focusing on the benefits of pressure-controlled volume guaranteed ventilation (PCV-VG), which incorporates the benefits of both VCV and PCV, while reducing the negative consequences associated with the two modes. Because of this specific issue, pressure-controlled ventilation (PCV) mode was introduced as an alternative mode in laparoscopic surgeries, an option that offered a reduction in barotrauma, yet also increased the risk of hypo- and hyperventilation. While the most common ventilation mode used in anesthesia is volume-controlled ventilation (VCV), this option may predispose patients to barotrauma. In order to reduce these risks, safe ventilation strategies are needed.
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