Background Postoperative delirium is one of the common complications after any major surgery such as gastrointestinal surgery. And it is related to increased mortality and morbidity and other serious surgical outcomes. Aims This study aims to identify risk factors for postoperative delirium in patients undergoing gastrointestinal surgery. Materials and Methods Relevant studies published before August 2021 were searched on Pubmed, Embase and Medline. The risk of bias of included studies was assessed by Newcastle–Ottawa Scale (NOS). A random‐effects model of DerSimonian‐Laird was used to synthesise the overall ORs or RRs for all risk factors. MOOSE checklist was used to review this manuscript. Results A total of 21 studies including 6165 patients were finally included for quantitative analysis. The pooled incidence of postoperative delirium is 11% (95% CI: 9%‐15%). 16 risk factors were identified, in which age, sex, alcohol consumption, cerebrovascular diseases, cardiovascular diseases, use of sleeping pills, history of delirium, preoperative C‐reactive protein (CRP) levels, operation time, blood loss and perioperative blood transfusion were statistically significant while smoking, American Society of Anesthesiologists (ASA) score, performance status, diabetes and operation approach were insignificant. Discussion This meta‐analysis may provide tips for nursing staff and surgeons to design and implement prevention programmes to reduce the incidence of postoperative delirium. Conclusion Potential risk factors of delirium after gastrointestinal surgery are age, sex, alcohol consumption, cerebrovascular diseases, cardiovascular diseases, use of sleeping pills, history of delirium, preoperative CRP levels, operation time, blood loss and blood transfusion.

Hypertrophic pulmonary osteoarthropathy (HPOA), mainly manifested clubbing, is rare in patients with esophageal sarcomatoid carcinoma. We herein describe a 48-year-old Chinese man whose advanced sarcomatoid carcinoma was diagnosed while examining his symptoms of HPOA. The patient had no opportunity of surgery after surgical evaluation. Chemoradiation, including 5 cycles of chemotherapy (Paclitaxel liposome 60 mg day 1 and nedaplatin 30 mg day 1, q1w) and 6MV-X/VMAT-95%PGTV 59.92 Gy/2.14 Gy/28 F and 95%PTV 50.4 Gy/1.8 Gy/28 F, and subsequent 6 cycles of chemotherapy (paclitaxel liposome 210 mg day 1 and nedaplatin 50 mg day 1, 60 mg day 2, q3w) shrank the tumor and the condition of the patient became stable without clubbing remission or exacerbation. No medical case report found in a PubMed search in the indexed English-language literature in the past 20 years, though there are some reports of HPOA combined with other pathologic types of esophageal carcinoma. The patient's condition was effectively controlled by chemotherapy and radiotherapy and showed stable disease. However, the five-year survival rate of advanced esophageal carcinoma patients is very low with low life quality, and the adverse reactions also contribute to low life quality. The purpose of this report is to present the feature and our treatment for primary esophageal sarcomatoid carcinoma with HPOA, which could be helpful for further understanding of the disease and clinical decision making. Moreover, this article also reviews esophageal carcinoma with HPOA and sarcomatoid carcinoma in the esophagus. We look forward to the breakthrough of immunotherapy and molecular targeting therapy to improve the situation.

Trigeminocardiac reflex (TCR) can result in bradycardia and even cardiac arrest, and is reversible with elimination of the stimulus. Here, we report the case of a 68-year-old man who experienced cardiac arrest during percutaneous balloon compression for the treatment of trigeminal neuralgia. In this patient, sinus rhythm did not recover after stimulation removal, causing us to successfully perform cardiopulmonary resuscitation (CPR). The patient regained a sinus rhythm and was pretreated with atropine 0.5 mg, allowing the operation to be started again. The operation was completed successfully and the patient experienced no complications. Subsequent heart rate variability (HRV) analysis showed that parasympathetic activity predominated before anesthesia induction and after tracheal intubation. It further elevated during foramen ovale puncture, leading to prolonged asystole. Fortunately, sympathetic activity predominated after atropine was administered, which manifested as an increase in sympathetic activity and a decrease in parasympathetic activity. This could be beneficial for patients with TCR. This case indicates that TCR-related cardiac arrest might not be reversed with stimulus cessation, and atropine played a key role in preventing TCR. Moreover, HRV analysis might be essential for preoperative screening for high-risk patients. We also reviewed the literature for cases of TCR with prolonged asystole.

Objectives Postoperative delirium (POD) is a common postsurgical complication. The early identification of its risk factors is the first step toward reducing POD. The predictive factors for POD in patients after major abdominal surgery remain obscure. Therefore, this meta‐analysis aimed to comprehensively summarize the risk factors of POD after major abdominal surgery. Methods POD studies published between January, 1900 and June 2022 were obtained by searching PubMed, Cochrane Library, Web of Science, Embase, and Medline. Two authors independently reviewed the studies to extract the risk factors and assessed the quality of related articles using the Newcastle‐Ottawa Scale. Data were recorded, and a meta‐analysis was performed using Review Manager version 5.4.1. Results Ten studies including total 2900 patients undergoing major abdominal surgery, were eligible for analysis, 608 of whom developed POD, for a cumulative incidence of 21%. This pooled analysis suggested the statistically significant risk factors for POD were age, higher American Society of Anesthesiologists grade, lower preoperative Mini‐Mental State Examination score, cognitive impairment, preoperative Katz‐ADL score <6, preoperative and postoperative hypoalbuminemia, lower preoperative insulin‐like growth factor‐1 levels, and longer duration of anesthesia. Conclusion POD is common in patients undergoing major abdominal surgery. This meta‐analysis identified risk factors that may aid the early detection of POD and play a prominent role in preventing POD.