View clinical trials related to Hemodynamics Instability.
Filter by:At present, there are limited data on perioperative efficacy of barbiturates at home and abroad. The purpose of this clinical trial is to observe the effects of amobarbital sodium combined with low-dose propofol on hemodynamics during induction and perioperative adverse reactions in gynecological laparoscopic surgery patients, and to provide a more reasonable, safe and comfortable anesthesia program for female patients who undergoing laparoscopic surgery. The main questions it aims to answer are: - whether the combination of the two results on more stable hemodynamics during induction in gynecological laparoscopic surgery patients; - whether the incidence of perioperative oxidative stress and inflammation and postoperative nausea and vomiting（ponv） improved after the use of the two combinations of anesthesia induction. Participants will: - Induction of anesthesia with the experimental drug or placebo； - 5 ml of venous blood was retained before, after, and 1 day after surgery for follow-up determination of serum associated factor levels； - To record their vital signs at any point during the anaesthetic process; Serum serological indexes related to oxidative stress and inflammation were determined. The agitation during the recovery period was recorded. The incidence and severity of ponv were recorded at 2h, 2-6h, and 6-24h postoperatively, and the use of palonosetron was also recorded.
Laparoscopic Hepatectomy (LH) is an important treatment for liver diseases, and bleeding is one of the most common complications during dissection of the liver parenchyma. Control Low Central Venous Pressure (CLCVP) technique is currently one of the most important techniques to control intraoperative bleeding. It mainly consists of fluid restriction, position adjustment and use of vasodilators. However, these measures focus on decreasing CVP by reducing the volume of return blood, and less attention is paid to factors such as pulmonary vascular resistance and cardiac function. Sildenafil, known as Viagra, is currently used to treat erectile dysfunction and pulmonary hypertension in men. Its mechanism of action is to inhibit phosphodiesterase-5 (PDE-5) and increase cGMP levels leading to smooth muscle relaxation and vasodilation. Its pharmacological properties provide potential value for the treatment of many diseases. However, few studies have been conducted both domestically and internationally on the use of sildenafil citrate in LH related to CLCVP. The aim of this study is to investigate the following aspects: 1) the feasibility and effectiveness of sildenafil citrate applied to control low central venous pressure in LH, such as intraoperative bleeding, the impact of CVP, and the surgeon's operative field grading to assess the value of its clinical application; 2) the impact of sildenafil citrate applied to the function of the liver and important organs of the kidneys of the patients after LH surgery as well as the incidence of postoperative complications, and to assess the clinical application of its Safety.