1.The efficacy and safety of radiofrequency ablation in papillary thyroid carcinoma: A systematic review and meta-analysis.
Wei Shuen Clarissa CHEONG ; Xin Yi Joy AU ; Ming Yann LIM ; Ernest Weizhong FU ; Hao LI ; Uei PUA ; Yong Quan Alvin SOON ; Yijin Jereme GAN
Annals of the Academy of Medicine, Singapore 2025;54(3):170-177
INTRODUCTION:
Radiofrequency ablation (RFA) avoids the complications of general anaesthesia, reduces length of hospitalisation and reduces morbidity from surgery. As such, it is a strong alternative treatment for patients with comorbidities who are not surgical candidates. However, to our knowledge, there have only been 1 systematic review and 3 combined systematic review and meta-analyses on this topic to date. This systematic review and meta-analysis seeks to evaluate the efficacy and safety of RFA in the treatment of papillary thyroid carcinoma (PTC) with longer follow-up durations.
METHOD:
PubMed, Embase and Cochrane databases were searched for relevant studies published from 1990 to 2021; 13 studies with a total of 1366 patients were included. The Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines and Sandelowski et al.'s approach1 to "negotiated consensual validation" were used to achieve consensus on the final list of articles to be included. All authors then assessed each study using a rating scheme modified from the Oxford Centre for Evidence-Based Medicine.
RESULTS:
Pooled volume reduction rates (VRRs) from 1 to 48 months after RFA, complete disappearance rates (CDR) and complications were assessed. Pooled mean VRRs were 96.59 (95% confidence interval [CI] 91.05-102.13, I2=0%) at 12 months2-6 and 99.31 (95% CI 93.74-104.88, I2=not applicable) at 48 months.2,5 Five studies showed an eventual CDR of 100%.2,4,7-9 No life-threatening complications were recorded. The most common complications included pain, transient voice hoarseness, fever and less commonly, first-degree burn.
CONCLUSION
RFA may be an effective and safe alternative to treating PTC. Larger clinical trials with longer follow-up are needed to further evaluate the effectiveness of RFA in treating PTC.
Humans
;
Radiofrequency Ablation/methods*
;
Thyroid Cancer, Papillary/surgery*
;
Thyroid Neoplasms/surgery*
;
Treatment Outcome
;
Postoperative Complications/etiology*
2.Perioperative complications associated with routine preoperative glucocorticoid use among patients undergoing pituitary surgery with normal preoperative HPA axis: A retrospective cohort study
Franz Michael Magnaye ; Elizabeth Paz-pacheco
Journal of the ASEAN Federation of Endocrine Societies 2025;40(1):89-96
OBJECTIVE
This study determined the incidence of perioperative complications associated with routine preoperative glucocorticoid use in patients undergoing pituitary surgery with normal preoperative hypothalamo-pituitary-adrenal axis (HPA axis).
METHODOLOGYFrom 2011-2021 retrospective chart review, 243 patients undergoing pituitary surgery with normal preoperative HPA axis were analyzed into 2 groups: 1) with preoperative steroids and 2) without preoperative steroids. Development of postoperative complications was subsequently evaluated.
RESULTSIncidence of primary composite postoperative complications of in-hospital mortality, postoperative infection and postoperative diabetes insipidus (DI) was significantly increased among those who had preoperative steroids compared to those without (58.33% versus 33.33%, p-value 0.004) with an adjusted odds ratio of 2.90 (CI 1.29 to 6.53, p-value 0.010). Among the components of the composite outcome, post-operative DI was statistically higher among those who were given preoperative steroids (52.45% versus 28.21%, p-value 0.006) with an adjusted OR of 3.31 (CI 1.43 to 7.67, p-value 0.005). The incidence of postoperative adrenal insufficiency was similar between the 2 groups (20.15% with steroids versus 8.70% without steroids, p-value 0.258).
CONCLUSIONAmong patients with normal preoperative HPA axis, the routine use of preoperative steroids is associated with an increased risk of composite postoperative complications (in-hospital mortality, postoperative infection and postoperative DI). Steroid-sparing protocol is not associated with an increased risk of postoperative AI. The findings will encourage more rational use of steroids and minimize preventable complications.
Human ; Pituitary-adrenal System ; Pituitary Gland ; Postoperative Complications ; Glucocorticoids ; Steroids
3.Predicting late aortic complications after acute type A dissection surgery with volumetric measurements in a Singapore cohort.
Jasmine GE ; Vinay Bahadur PANDAY ; Siew-Pang CHAN ; Bernard WEE ; Julian Chi Leung WONG ; Leok Kheng Kristine TEOH ; Moe Thu SAN ; Carlos A MESTRES ; Theodoros KOFIDIS ; Vitaly A SOROKIN
Singapore medical journal 2025;66(9):469-475
INTRODUCTION:
This study was conducted to evaluate the efficacy of postoperative computed tomography (CT) measurements of aortic lumen volumes in predicting aortic-related complications following acute type A aortic dissection (ATAAD) repair.
METHODS:
We conducted a single-institution retrospective aortic volumetric analysis of patients after ascending aorta replacement performed during 2001-2015. The volumetric measurements of total lumen (total-L), true lumen (TL), false lumen (FL), as well as the TL:FL ratio from the first and second postoperative computer angiograms were obtained. A generalised structural equation model was created to analyse the predictive utility of TL:FL ratio.
RESULTS:
One hundred and twenty-five patients underwent surgical intervention, of whom 97 patients were eventually discharged and analysed for postoperative complications. A total of 19 patients were included in the final analysis. Patients with late postoperative aortic complications had a significantly higher FL volume and total-L volume on the first (FL volume P = 0.041, total-L volume P = 0.05) and second (FL volume P = 0.01, total-L volume P = 0.007) postoperative scans. The odds of having aortic complications were raised by 1% with a 1 cm 3 increase in total-L volume and by 2% with a 1 cm 3 increase in FL volume. The TL:FL ratio was significantly lower in patients who developed complications.
CONCLUSION
Postoperative CT volumetric measurements in patients who developed complications are characterised by a significant increase in the FL volume and total-L volume from the first postoperative scans. Patients with disproportionately expanded FL presenting with TL:FL ratios less than 1 were associated with aortic complications. Hence, the TL:FL ratio may be a reliable and useful parameter to monitor postoperative disease progression and to evaluate the risk of late complications in ATAAD patients.
Humans
;
Male
;
Female
;
Retrospective Studies
;
Singapore
;
Aortic Dissection/diagnostic imaging*
;
Middle Aged
;
Postoperative Complications/diagnostic imaging*
;
Aged
;
Tomography, X-Ray Computed
;
Aortic Aneurysm/diagnostic imaging*
;
Aorta/surgery*
;
Adult
;
Treatment Outcome
;
Computed Tomography Angiography
4.Postoperative urinary retention following hip or knee arthroplasty under spinal anaesthesia with intrathecal morphine: a retrospective cohort study.
Elad DANA ; Oz BEN-ZUR ; Sara DICHTWALD ; Guy FEIGIN ; Noa BRIN ; Michael MARKUSHEVICH ; Brian FREDMAN ; Yaron Shraga BRIN
Singapore medical journal 2025;66(9):481-485
INTRODUCTION:
Postoperative urinary retention (POUR) frequently complicates the course of patients following hip and knee arthroplasty. Intrathecal morphine (ITM) was identified as a significant risk factor for POUR. The objective of this study was to investigate the incidence and risk factors for POUR in fast-track total joint arthroplasty (TJA) under spinal anaesthesia (SA) with ITM.
METHODS:
We conducted a retrospective study of our institutional joint registry of patients who underwent primary TJA under SA with ITM between October 2017 and May 2021. Preoperative (baseline demographics) and perioperative data were collected. The primary outcome was the incidence of POUR after 8 h or earlier, either due to lack of voiding or according to patient's complaints of bladder distension. Univariate and adjusted analyses were performed to identify predictors of POUR.
RESULTS:
Sixty-nine patients who underwent total knee arthroplasty (TKA) and 36 patients who underwent total hip arthroplasty (THA) under SA with ITM were included in the study. POUR requiring bladder catheterisation was diagnosed in 21% of patients. Independent predictors of POUR were age over 65 years and male gender.
CONCLUSIONS
SA with ITM for TJA is associated with high rates of POUR in males older than 65 years of age. Other previously identified risk factors such as intraoperative fluid administration or comorbidities may not be as influential.
Humans
;
Retrospective Studies
;
Male
;
Urinary Retention/epidemiology*
;
Arthroplasty, Replacement, Knee/adverse effects*
;
Anesthesia, Spinal/adverse effects*
;
Female
;
Arthroplasty, Replacement, Hip/adverse effects*
;
Morphine/adverse effects*
;
Aged
;
Middle Aged
;
Risk Factors
;
Postoperative Complications/epidemiology*
;
Injections, Spinal
;
Incidence
;
Analgesics, Opioid/adverse effects*
;
Aged, 80 and over
5.Presenting characteristics, histological subtypes and outcomes of adult central nervous system tumours: retrospective review of a surgical cohort.
Mervyn Jun Rui LIM ; Yilong ZHENG ; Sean Wai-Onn ENG ; Celest Wen Ting SEAH ; Shuning FU ; Lucas Zheng Long LAM ; Joel Yat Seng WONG ; Balamurugan VELLAYAPPAN ; Andrea Li-Ann WONG ; Kejia TEO ; Vincent Diong Weng NGA ; Sein LWIN ; Tseng Tsai YEO
Singapore medical journal 2025;66(10):545-550
INTRODUCTION:
The most recent local study on the incidence of histological subtypes of all brain and spinal tumours treated surgically was published in 2000. In view of the outdated data, we investigated the presenting characteristics, histological subtypes and outcomes of adult patients who underwent surgery for brain or spinal tumours at our institution.
METHODS:
A single-centre retrospective review of 501 patients who underwent surgery for brain or spinal tumours from 2016 to 2020 was conducted. The inclusion criteria were (a) patients who had a brain or spinal tumour that was histologically verified and (b) patients who were aged 18 years and above at the time of surgery.
RESULTS:
Four hundred and thirty-five patients (86.8%) had brain tumours and 66 patients (13.2%) had spinal tumours. Patients with brain tumours frequently presented with cranial nerve palsy, headache and weakness, while patients with spinal tumours frequently presented with weakness, numbness and back pain. Overall, the most common histological types of brain and spinal tumours were metastases, meningiomas and tumours of the sellar region. The most common complications after surgery were cerebrospinal fluid leak, diabetes insipidus and urinary tract infection. In addition, 15.2% of the brain tumours and 13.6% of the spinal tumours recurred, while 25.7% of patients with brain tumours and 18.2% of patients with spinal tumours died. High-grade gliomas and metastases had the poorest survival and highest recurrence rates.
CONCLUSION
This study serves as a comprehensive update of the epidemiology of brain and spinal tumours and could help guide further studies on brain and spinal tumours.
Humans
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Retrospective Studies
;
Female
;
Male
;
Middle Aged
;
Adult
;
Aged
;
Central Nervous System Neoplasms/pathology*
;
Brain Neoplasms/pathology*
;
Treatment Outcome
;
Postoperative Complications
;
Young Adult
;
Spinal Neoplasms/pathology*
;
Neoplasm Recurrence, Local
;
Aged, 80 and over
;
Adolescent
6.Case of oculomotor nerve palsy after the surgery of cranial-orbital communicating tumor.
Cangsong ZHAO ; Zhongyu TANG ; Tao WANG ; Haiyan WANG
Chinese Acupuncture & Moxibustion 2025;45(4):548-550
The paper reports acupuncture treatment for one case of oculomotor nerve palsy after cranial-orbital communicating tumor surgery. The acupoint prescription was composed of the local acupoints of the eyes (Yansanzhen, Tijian, Cuanzhu [BL2], Yuyao [EX-HN4] and Sizhukong [TE23]), the acupoints on the head, face and neck (Yangbai [GB14], Sibai [ST2] and Fengchi [GB20]), Guanyuan (CV4) on the abdomen, and those on the four limbs (Hegu [LI4], Zusanli [ST36], Shenmai [BL62] and Zhaohai [KI6]). The point-to-point needling technique with the eyelid lifted was operated at Tijian, Cuanzhu (BL2), Yuyao (EX-HN4), and Sizhukong (TE23). Warm needling with moxa cone placed on the needle handle was operated at Guanyuan (CV4) and Zusanli (ST36), and the usual needling technique was delivered at the rest acupoints. The treatment was given once daily, discontinued for 1 day after every 6 treatments. One course of treatment was composed of 7 days, and 6 courses were required. After treatment completion, the upper eyelids were basically symmetrical and the bilateral eye cracks were equal, the double vision appeared occasionally. No recurrence and no aggravation were reported in 1 month of follow up visit.
Humans
;
Acupuncture Points
;
Acupuncture Therapy
;
Oculomotor Nerve Diseases/etiology*
;
Orbital Neoplasms/surgery*
;
Postoperative Complications/etiology*
7.Effect of perioperative transcutaneous electrical acupoint stimulation on postoperative fatigue syndrome in elderly patients.
Jing CHENG ; Shiyi HU ; Yuru FANG ; Guixia CAO ; Tao JIANG ; Yiqiao WANG
Chinese Acupuncture & Moxibustion 2025;45(8):1071-1077
OBJECTIVE:
To observe the effect of perioperative transcutaneous electrical acupoint stimulation (TEAS) on postoperative fatigue syndrome (POFS) in elderly patients undergoing laparoscopic radical gastrectomy.
METHODS:
A total of 80 elderly patients scheduled for laparoscopic radical gastrectomy were randomized into a TEAS group and a sham TEAS group, 40 cases in each one. In the TEAS group, TEAS intervention was applied at bilateral Hegu (LI4), Neiguan (PC6), Zusanli (ST36) and Sanyinjiao (SP6) from 30 min before anesthesia induction until surgery completion, and at 18:00 on 1st, 2nd and 3rd days after surgery, once a day, 30 min a time. In the sham TEAS group, the same acupoints were selected and connected to the electroacupuncture device at the same time, without electrical stimulation. One day before surgery and 1, 3, 7 days after surgery, the 10-item short form of identity consequence fatigue scale (ICFS-10) score was observed, and the POFS incidence rate of 1, 3, 7 days after surgery was assessed in the two groups. One day before surgery, surgery completion, and 1, 3 days after surgery, the serum levels of superoxide dismutase (SOD), β-endorphin (β-EP) were detected; 1 day before surgery and 1, 3, 7 days after surgery, the serum level of tumor necrosis factor-α (TNF-α) was detected in the two groups. The pain visual analog scale (VAS) score was observed at 24, 48 and 72 h after surgery; the intraoperative dosage of propofol and remifentanil, and the incidence rate of postoperative nausea and vomiting, itching, respiratory depression were recorded in the two groups.
RESULTS:
In the TEAS group, on 1, 3, 7 days after surgery, except for the scores of item 8-10, the item scores and the total scores of ICFS-10 were lower than those in the sham TEAS group (P<0.001); on 3 and 7 days after surgery, the POFS incidence rates were lower than those in the sham TEAS group (P<0.05). In the TEAS group, on 1 and 3 days after surgery, the serum levels of SOD were higher than those in the sham TEAS group (P<0.05, P<0.01); at surgery completion, and on 1, 3 days after surgery, the serum levels of β-EP were higher than those in the sham TEAS group (P<0.001, P<0.01); on 1, 3, 7 days after surgery, the serum levels of TNF-α were lower than those in the sham TEAS group (P<0.01, P<0.001). In the TEAS group, at 24, 48 and 72 h after surgery, the pain VAS scores were lower than those in the sham TEAS group (P<0.001, P<0.01, P<0.05); the intraoperative dosage of remifentanil was lower than that in the sham TEAS group (P<0.001); the incidence rate of postoperative nausea and vomiting was lower than that in the sham TEAS group (P<0.01).
CONCLUSION
Perioperative TEAS intervention can effectively reduce the incidence rate of POFS, improve fatigue symptom and mental state in elderly patients undergoing laparoscopic radical gastrectomy, its mechanism may related to enhancing endogenous β-EP release, inhibiting inflammatory response, and reducing central oxidative stress, thereby promoting postoperative recovery.
Humans
;
Acupuncture Points
;
Male
;
Female
;
Aged
;
Transcutaneous Electric Nerve Stimulation
;
Postoperative Complications/therapy*
;
Middle Aged
;
Fatigue/etiology*
;
Gastrectomy/adverse effects*
;
beta-Endorphin/blood*
;
Tumor Necrosis Factor-alpha/blood*
8.Development and multicenter validation of machine learning models for predicting postoperative pulmonary complications after neurosurgery.
Ming XU ; Wenhao ZHU ; Siyu HOU ; Hongzhi XU ; Jingwen XIA ; Liyu LIN ; Hao FU ; Mingyu YOU ; Jiafeng WANG ; Zhi XIE ; Xiaohong WEN ; Yingwei WANG
Chinese Medical Journal 2025;138(17):2170-2179
BACKGROUND:
Postoperative pulmonary complications (PPCs) are major adverse events in neurosurgical patients. This study aimed to develop and validate machine learning models predicting PPCs after neurosurgery.
METHODS:
PPCs were defined according to the European Perioperative Clinical Outcome standards as occurring within 7 postoperative days. Data of cases meeting inclusion/exclusion criteria were extracted from the anesthesia information management system to create three datasets: The development (data of Huashan Hospital, Fudan University from 2018 to 2020), temporal validation (data of Huashan Hospital, Fudan University in 2021) and external validation (data of other three hospitals in 2023) datasets. Machine learning models of six algorithms were trained using either 35 retrievable and plausible features or the 11 features selected by Lasso regression. Temporal validation was conducted for all models and the 11-feature models were also externally validated. Independent risk factors were identified and feature importance in top models was analyzed.
RESULTS:
PPCs occurred in 712 of 7533 (9.5%), 258 of 2824 (9.1%), and 207 of 2300 (9.0%) patients in the development, temporal validation and external validation datasets, respectively. During cross-validation training, all models except Bayes demonstrated good discrimination with an area under the receiver operating characteristic curve (AUC) of 0.840. In temporal validation of full-feature models, deep neural network (DNN) performed the best with an AUC of 0.835 (95% confidence interval [CI]: 0.805-0.858) and a Brier score of 0.069, followed by Logistic regression (LR), random forest and XGBoost. The 11-feature models performed comparable to full-feature models with very close but statistically significantly lower AUCs, with the top models of DNN and LR in temporal and external validations. An 11-feature nomogram was drawn based on the LR algorithm and it outperformed the minimally modified Assess respiratory RIsk in Surgical patients in CATalonia (ARISCAT) and Laparoscopic Surgery Video Educational Guidelines (LAS VEGAS) scores with a higher AUC (LR: 0.824, ARISCAT: 0.672, LAS: 0.663). Independent risk factors based on multivariate LR mostly overlapped with Lasso-selected features, but lacked consistency with the important features using the Shapley additive explanation (SHAP) method of the LR model.
CONCLUSIONS:
The developed models, especially the DNN model and the nomogram, had good discrimination and calibration, and could be used for predicting PPCs in neurosurgical patients. The establishment of machine learning models and the ascertainment of risk factors might assist clinical decision support for improving surgical outcomes.
TRIAL REGISTRATION
ChiCTR 2100047474; https://www.chictr.org.cn/showproj.html?proj=128279 .
Adult
;
Aged
;
Female
;
Humans
;
Male
;
Middle Aged
;
Algorithms
;
Lung Diseases/etiology*
;
Machine Learning
;
Neurosurgical Procedures/adverse effects*
;
Postoperative Complications/diagnosis*
;
Risk Factors
;
ROC Curve
10.Guideline for prevention and treatment of common complications in older patients undergoing lumbar spinal fusion (2025 edition).
Chinese Journal of Surgery 2025;63(9):771-778
With the aging of the population in China, lumbar degenerative diseases among the older patients have drawn growing attention. Lumbar fusion is an important surgical treatment for degenerative diseases of the lumbar spine, which mainly achieves bony fusion between adjacent vertebrae through methods such as bone grafting and internal fixation. Due to the unique physiological and pathological characteristics of the older patients, it often leads to a higher risk of complications associated with lumbar fusion, which affects the patient's prognosis. However, there is still a lack of standards for the prevention and treatment of some common complications associated with lumbar fusion surgery in the older patients. The Chinese Medical Doctor Association Committee of Neural Restoration took the lead in establishing a guideline development group, followed the principles and methods of guideline development, and produced "Guideline for prevention and treatment of common complications in older patients undergoing lumbar spinal fusion(2025 edition)", covering ten types of common complications associated with lumbar fusion in the older patients with 20 recommendations for clinical practice reference.
Humans
;
Spinal Fusion/adverse effects*
;
Lumbar Vertebrae/surgery*
;
Postoperative Complications/therapy*
;
Aged
;
Spinal Diseases/surgery*


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