Perioperative incidence of airway obstructive and hypoxemic events in patients with confirmed or suspected sleep apnea - a prospective, randomized pilot study comparing propofol/remifentanil and sevoflurane/remifentanil anesthesia

Application of sevoflurane combined with remifentanil anesthesia in laparoscopic radical hysterectomy for cervical cancer

OBJECTIVE

To explore the effects of sevoflurane combined with remifentanil anesthesia on the physical stress and immunologic function of patients undergoing laparoscopic radical hysterectomy for cervical cancer.

METHODS

The clinical data of 74 patients undergoing laparoscopic radical hysterectomy for cervical cancer were retrospectively analyzed. Patients were divided into two groups according to the different anesthesia methods, among which 37 cases received propofol and remifentanil anesthesia were set as a control group (CG), and 37 cases received sevoflurane and remifentanil anesthesia were set as an observation group (OG).

RESULTS

The OG showed a lower heart rate, Ramsay score and bispectral index than the CG 30 min after the start of the surgery and at the end of the surgery. The levels of glucagon, angiotensin II and cortisol in the OG were lower than those in the CG upon skin incision, at the end of surgery, and at 1 h after surgery (P < 0.05). The levels of CD3⁺ and CD4⁺ of the OG were higher than those of the CG at 1 d and 3 d after surgery. In terms of Montreal Cognitive Assessment and Mini-Mental State Examination scores 1 d after surgery, the OG was higher than the CG.

CONCLUSION

Sevoflurane combined with remifentanil anesthesia for patients undergoing laparoscopic radical hysterectomy for cervical cancer is superior to propofol and remifentanil, and can ensure stable hemodynamics and mitigate physical stress, so it is worthy of clinical application.

Periprocedural Management during Therapeutic Cardiac Catheterization in Patients with Sleep Apnea Syndrome: Report of Three Cases and Review of Literature

Most of the patients with sleep apnea syndrome (SAS) also known as sleep disordered breathing are not diagnosed before undergoing any cardiac interventional procedure. Many of them can safely undergo outpatient procedure under sedation or anesthesia. Few of them with moderate to severe grade of SAS, who are not optimized medically, may create problem and need special consideration. We managed three such cases in cardiac catheterization laboratory; two of them were not diagnosed before. The periprocedural problems we faced in these patients are narrated in this article along with review of literature. Some suggestions for management of such patients undergoing therapeutic cardiac catheterization are also highlighted.

Study protocol for a randomised controlled clinical trial comparing desflurane-based versus propofol-based anaesthesia on postanaesthesia respiratory depression in patients with obstructive sleep apnoea after major abdominal surgery

INTRODUCTION

Patients with obstructive sleep apnoea (OSA) are more sensitive to postanaesthesia respiratory depression. Whether different anaesthetic regimens (intravenous-based or inhalational-based general anaesthesia) affect the postanaesthesia respiratory depression is controversial. Although desflurane has been reported that presents favourable rapid recovery profile in special patients including whom with OSA, the strong clinical evidence of the benefit on postanaesthesia respiratory depression is far from being revealed. This study aims to fill this knowledge gap by investigating the postanaesthesia respiratory depression in postanaesthesia care unit (PACU) in patients with OSA after major abdominal surgery, followed by desflurane-based anaesthesia compared with propofol-based anaesthesia.

METHODS AND ANALYSIS

Eight hundred and fifty-four patients with OSA scheduled for elective major abdominal surgery will be randomly 1:1 assigned to desflurane-based (n=427) or propofol-based anaesthesia (n=427) using a computer-generated randomisation scheme with permuted block size maintained by a centralised randomisation centre. Patients will be assessed before and a consecutive 3 days after their surgery according to the standardised tasks. Demographic data as well as surgical and anaesthesia information will be collected for the duration of the procedure. Incidence of postanaesthesia respiratory depression in PACU as well as anaesthesia recovery, emergence delirium, postoperative nausea and vomiting, rescue analgesia, duration of PACU and hospital stay, and any other adverse events will be assessed at the given study time point. Investigators performing postoperative follow-up are not involved in both anaesthesia implementation and postoperative care.

ETHICS AND DISSEMINATION

This study protocol has been approved by the ethics board at Xiang'an Hospital of Xiamen University (XAHLL2019003). The results of this study will be published in a peer-review journal and presented at national conferences as poster or oral presentations. Participants wishing to know the results of this study will be contacted directly on data publication.

TRIAL REGISTRATION NUMBER

ChiCTR2000031087.

Society of Anesthesia and Sleep Medicine Guideline on Intraoperative Management of Adult Patients With Obstructive Sleep Apnea

The purpose of the Society of Anesthesia and Sleep Medicine Guideline on Intraoperative Management of Adult Patients With Obstructive Sleep Apnea (OSA) is to present recommendations based on current scientific evidence. This guideline seeks to address questions regarding the intraoperative care of patients with OSA, including airway management, anesthetic drug and agent effects, and choice of anesthesia type. Given the paucity of high-quality studies with regard to study design and execution in this perioperative field, recommendations were to a large part developed by subject-matter experts through consensus processes, taking into account the current scientific knowledge base and quality of evidence. This guideline may not be suitable for all clinical settings and patients and is not intended to define standards of care or absolute requirements for patient care; thus, assessment of appropriateness should be made on an individualized basis. Adherence to this guideline cannot guarantee successful outcomes, but recommendations should rather aid health care professionals and institutions to formulate plans and develop protocols for the improvement of the perioperative care of patients with OSA, considering patient-related factors, interventions, and resource availability. Given the groundwork of a comprehensive systematic literature review, these recommendations reflect the current state of knowledge and its interpretation by a group of experts at the time of publication. While periodic reevaluations of literature are needed, novel scientific evidence between updates should be taken into account. Deviations in practice from the guideline may be justifiable and should not be interpreted as a basis for claims of negligence.