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[Resection syndrome following transurethral resection of the prostate].

The essence and clinical aspects of the resection syndrome occurring in association with transuretheral prostate resection and the possiblity of determining the direction of the absorption of the washing solution are discussed. By means of radioisotope tests a direct correlation was detected between the extent of the haemorrhage and the intravasation of the washing solution. Great importance is ascribed to the vesico-renal reflux often occurring during resection, which might have a major role in the development of post-resectional pyelonephritis.

Aged

Intersphincteric resection versus abdominoperineal resection for lower rectal cancer: A systematic review and meta-analysis.

BACKGROUND: The optimal surgical approach for lower rectal cancer (LRC) remains debated, particularly between intersphincteric resection (ISR) and abdominoperineal resection (APR). While ISR offers potential sphincter preservation, its oncological efficacy compared to APR is unclear. METHODS: A systematic review was conducted to compare clinical and oncological outcomes of ISR versus APR in LRC patients. On December 8, 2024, a comprehensive search of Medline, Embase, Cochrane Library, Scopus, and Web of Science identified 24 retrospective studies involving 4502 patients. Key outcomes analyzed included positive circumferential resection margin (CRM), number of harvested lymph nodes (LNs), local recurrence (LR), length of hospital stay (LOS), early postoperative complications, and survival. RESULTS: Twenty-four retrospective studies involving 4502 patients (ISR: 2266 (50.3%) and APR: 1558 (34.6%)) met the eligibility criteria. ISR was associated with significantly lower rates of positive CRM (risk ratio (RR): 0.41, p&#x202f;<&#x202f;0.001), decreased early postoperative complications (RR: 0.76, p&#x202f;<&#x202f;0.001), lower LR (RR: 0.63, p&#x202f;=&#x202f;0.0038), and improvement in five-year overall survival (5YOS) (hazard ratio (HR)&#x202f;=&#x202f;0.42, p&#x202f;<&#x202f;0.001) and five-year disease-free survival (5YDFS) (HR&#x202f;=&#x202f;0.59, p&#x202f;<&#x202f;0.001). CONCLUSIONS: ISR demonstrates several advantages over APR in selected LRC patients, including lower rates of positive CRM, fewer early postoperative complications, reduced LR, greater LN harvest, shorter LOS, and improved long-term survival outcomes (5YOS and 5YDFS). Therefore, ISR can be considered a safe and effective alternative to APR in appropriately chosen patients, with careful patient selection and surgical expertise remaining essential.

Humans

Role of fat maldigestion in pathogenesis of steatorrhea in ileal resection. Fat digestion after two sequential test meals with and without cholestyramine.

To clarify the role of fat maldigestion in the pathogenesis of steatorrhea in patients with ileal resection the total and aqueous phase concentrations of bile acid and fatty acid were characterized in 8 such patients (5 patients with small ileal resection, bile acid diarrhea, and steatorrhea less than 20 g per day; 3 patients with large ileal resection, fatty acid diarrhea, and steatorrhea greater than 20 g per day) as well as 4 healthy control subjects after a morning and an afternoon liquid test meal. The study was then repeated with cholestyramine, 4 g being administered before each meal to induce fat maldigestion. After a conventional test meal, patients with large resections and severe steatorrhea had significantly lower aqueous phase concentrations of bile acids (and fatty acids) than patients with smaller resections or control subjects, explained in part by intraluminal precipitation of about one-half of the bile acids during digestion. When cholestyramine was administered before the meal, aqueous phase bile acid concentrations decreased in all patients, including the normal control subjects; the degree of fat maldigestion induced in the patients with small resections (and the control subjects) became similar to that present after the conventional test meal in the patients with large resections. Because steatorrhea increased little in the patients with small resections when cholestyramine was administered continuously, the data suggest that fat maldigestion per se does not induce severe fat malabsorption in patients with sufficient anatomical reserve, because such patients can absorb fat efficiently by utilizing the distal small intestine. In patients with large ileal resections, severe steatorrhea is explained in part by the combination of fat maldigestion and decreased surface area. It is also speculated that the steatorrhea occurring in patients with small resections and relatively normal fat digestion during two test meals may be explained by impaired fat digestion which occurs during the final meal of the day, which is often the largest meal.

Adult

Endoscopic submucosal dissection for locally recurrent gastric neoplasia following endoscopic resection: a systematic review and meta-analysis.

BACKGROUND AND AIMS: Endoscopic submucosal dissection (ESD) for locally recurrent gastric neoplasia following endoscopic resection (ER) is technically challenging because of scar-related submucosal fibrosis. We performed a systematic review and meta-analysis to evaluate the efficacy and safety of salvage ESD in this setting. METHODS: Multiple databases were searched through December 2025 for studies reporting ESD outcomes for locally recurrent gastric lesions at or contiguous with a prior ER scar. Primary outcome was curative resection and need for surgery. Secondary outcomes were en bloc and R0 resection, local recurrence, delayed bleeding, and perforation. Meta-analyses were performed using a random effects model. Heterogeneity was assessed using I2. RESULTS: Seven studies (259 patients; 265 ESDs) were included. Across 5 studies and 243 ESDs, pooled curative resection rate was 69.7% (95% CI, 60.6-78.1; I2 = 38%), while 8.2% (95% CI, 3.3-14.6; I2 = 38.4%) required surgery. En bloc resection rate was 92.3% (95% CI, 79.1-99.7; I2 = 83.7%) across 6 studies, and pooled R0 resection rate was 87.5% (95% CI, 82.1-92.2; I2 = 0%) across 4 studies. Over a mean follow-up of 42 months, pooled local recurrence was 2.0% (95% CI, 0.0-9.7; I2 = 54.1%) across 6 studies. Delayed bleeding was 4.1% (95% CI, 0.8-9.0; I2 = 40.8%) and perforation was 4.1% (95% CI, 1.6-7.3; I2 = 0%). CONCLUSIONS: ESD for locally recurrent gastric neoplasia after ER achieves acceptable curative resection, high en bloc/R0 resection, and low local recurrence and morbidity. It is a viable organ-preserving option for appropriately selected patients, ideally performed at expert centers with close surveillance.

Humans

Endoscopic mucosal resection with precutting vs. anchoring technique using snare tip for 10-25&#x2009;mm nonpedunculated colorectal polyps: a randomized controlled trial.

BACKGROUND AND AIMS: Modified endoscopic mucosal resection (EMR) techniques using a snare tip, precutting EMR (P-EMR) and anchoring EMR (A-EMR), have been developed for the effective resection of nonpedunculated colorectal polyps measuring 10-25&#x2005;mm. Although previous studies have compared either P-EMR or A-EMR with conventional EMR, no study has directly compared these two snare tip-assisted techniques within modified EMR. This study aimed to evaluate P-EMR and A-EMR in terms of the R0 resection rate and procedure duration. METHODS: This prospective randomized controlled trial enrolled patients with nonpedunculated colorectal polyps measuring 10-25&#x2005;mm. The patients were randomly assigned to the P-EMR or A-EMR groups. The primary outcome was R0 resection rate, defined as en bloc resection with histologically tumor-free margins. Secondary outcomes included the injection-to-snaring time, total procedure time, and adverse events. RESULTS: Each group included 63 polyps, of which 126 were analyzed in the final evaluation. Both groups achieved high R0 resection rates (93.7% for P-EMR and 88.9% for A-EMR), with no significant difference ( P &#x2005;=&#x2005;0.344). However, the A-EMR group demonstrated significantly shorter injection-to-snaring time (181.8&#x2005;&#xb1;&#x2005;81.9 vs. 320.9&#x2005;&#xb1;&#x2005;143.5&#x2005;s, P &#x2005;<&#x2005;0.001) and total procedure time (259.7&#x2005;&#xb1;&#x2005;139.7 vs. 479.8&#x2005;&#xb1;&#x2005;249.0&#x2005;s, P &#x2005;<&#x2005;0.001). Adverse events, including intraprocedural and delayed bleeding, were comparable between the groups. CONCLUSION: Both P-EMR and A-EMR demonstrated high R0 resection rates for nonpedunculated polyps measuring 10-25&#x2005;mm. However, A-EMR achieved these outcomes with a shorter procedure time than P-EMR.

Humans

Neoadjuvant Systemic Therapy for Resectable Intrahepatic Cholangiocarcinoma: From Retrospective Studies to Randomized Evidence.

Complete resection remains the only potentially curative treatment for localized intrahepatic cholangiocarcinoma (iCCA), yet postoperative recurrence is common, particularly in patients with high-risk disease. Neoadjuvant systemic therapy may permit earlier control of occult micrometastatic disease, optimize the delivery of systemic treatment, and provide an in vivo assessment of tumor biology prior to major hepatectomy. These potential benefits must be balanced against treatment-related toxicity, surgical delay, and the risk of disease progression precluding resection. Early evidence was primarily derived from retrospective studies, which yielded inconsistent survival outcomes and exhibited substantial vulnerability to confounding and treatment-selection bias. The single-arm NEO-GAP trial subsequently demonstrated the feasibility of administering neoadjuvant gemcitabine, cisplatin, and nab-paclitaxel followed by surgical resection. More recently, the randomized phase II-III ZSAB-neoGOLP trial showed that neoadjuvant gemcitabine-oxaliplatin, lenvatinib, and toripalimab followed by surgery prolonged median event-free survival compared with upfront surgery (median: 18.0 vs. 8.7 months) without substantially compromising surgical feasibility. However, the interim overall survival analysis was inconclusive, and the generalizability of these findings beyond selected, medically fit patients treated at Chinese centers remains uncertain. This narrative review critically appraises the evolving evidence, discusses patient selection and perioperative treatment, and identifies priorities for future research. Current evidence supports the selective consideration of neoadjuvant therapy in medically fit patients with technically resectable but oncologically high-risk iCCA, rather than its routine use in all resectable cases.

GOLP

A multicenter survey on BRAF screening for the implementation of perioperative cancer genomic medicine for resectable colorectal oligometastases.

BACKGROUND: Genomic screening is an essential, but potentially time-consuming procedure, especially in neoadjuvant settings. We evaluated the preoperative screening of the BRAF V600E mutation for recruitment to a clinical trial among patients with resectable colorectal oligometastases (CRM). METHODS: In April 2022, an investigator-initiated trial was launched to investigate the efficacy and safety of perioperative use of the BEACON triplet regimen for BRAF V600E mutant resectable CRM. BRAF screening was retrospectively conducted in patients with resected colorectal liver metastases in 2019 for planning the trial and prospectively conducted in preoperative patients with resectable CRM from January 2022 to June 2025 for patient recruitment to the trial. RESULTS: BRAF V600E mutation was detected in 12 (3.2%) of 379 postoperative patients retrospectively and in 36 (1.7%) of 2140 preoperative patients prospectively, with 1840 patients (86.0%) carrying the wild-type and 264 patients (12.3%) classified as untested. The detection rate of the BRAF V600E mutation was significantly lower when the screening was performed prospectively in preoperative patients (P&#x2009;<&#x2009;0.001). The untested rates varied across metastatic organs, with 10.3% in the liver, 18.1% in the lungs, 12.0% in the lymph nodes, 16.7% in the peritoneum, and 7.8% in other organs. The untested rates decreased consistently across semiannual comparisons: 28.5% in the first evaluation, followed by 15.0%, 12.0%, 8.4%, 9.1%, 7.3%, and 7.1% (P&#x2009;<&#x2009;0.01 when compared with the first period). CONCLUSION: Raising physician awareness, as reflected by the untested rate, is a crucial factor in conducting clinical trials to implement perioperative cancer genomic medicine.

Humans

Prognostic Value of Circulating Tumor DNA-Based Minimal Residual Disease for Recurrence-Free Survival in Resectable Gastric Cancer: A Systematic Review and Meta-Analysis with Serial Monitoring Analysis.

BACKGROUND: Circulating tumor DNA (ctDNA)-based minimal residual disease (MRD) is an emerging biomarker, but its utility in resectable gastric cancer remains incompletely characterized. METHODS: We conducted a systematic review and meta-analysis of eight studies (520 patients) to evaluate the prognostic value of ctDNA-based MRD for recurrence-free survival (RFS) and overall survival (OS) in resectable gastric cancer. RESULTS: In localized resectable gastric cancer (Stage I-III), the setting in which postoperative ctDNA most coherently represents true molecular residual disease after curative-intent surgery, postoperative ctDNA positivity was associated with diminished recurrence-free survival (RFS: HR 12.26, 95% CI 3.30-45.52) and overall survival (OS: HR 8.57, 95% CI 3.06-23.98). The test for subgroup differences between localized and mixed-stage cohorts was not statistically significant (P&#x2009;=&#x2009;0.57), and the numerically higher HR in the localized subgroup should therefore not be interpreted as evidence of a quantitatively stronger prognostic effect. Postoperative ctDNA detection demonstrated substantially stronger prognostic value (overall RFS: HR 10.00, 95% CI 4.53-22.10) compared to preoperative assessment (HR 2.17, 95% CI 1.10-4.28). Both tumor-informed and tumor-agnostic strategies effectively stratified high-risk patients. However, these effect sizes should be interpreted cautiously given the small number of studies and substantial heterogeneity (I2&#x2009;=&#x2009;65-72%). Results from mixed-stage cohorts including Stage IV disease are supportive but should not be considered equivalent to localized-disease findings, as ctDNA in metastatic disease reflects persistent systemic burden rather than minimal residual disease in the postoperative sense. CONCLUSIONS: Postoperative ctDNA-based MRD shows a consistent adverse prognostic association in resectable gastric cancer, with localized disease (Stage I-III) representing the most biologically and clinically coherent setting for interpretation. However, the large pooled hazard ratios (HR 10.00-12.26) should be interpreted as a directionally consistent signal rather than precise quantitative estimates, given the small number of studies, wide confidence intervals, and substantial heterogeneity (I2&#x2009;=&#x2009;65-73%). This heterogeneity is largely driven by substantial variation in postoperative sampling timing (4&#xa0;days to 16&#xa0;weeks) and ctDNA assay characteristics (platform, sensitivity, coverage, variant filtering, and positivity thresholds), which require standardization in future studies. While ctDNA is prognostically valuable, its clinical utility remains unestablished. Prospective randomized trials are needed to determine whether ctDNA-guided strategies improve patient outcomes before routine clinical implementation can be recommended.

Humans

Adjuvant alectinib versus chemotherapy in resected ALK-positive non-small-cell lung cancer (ALINA): health-related quality-of-life and safety outcomes from a randomised, open-label, phase 3 trial.

BACKGROUND: For patients with resected, ALK-positive non-small-cell lung cancer (NSCLC), adjuvant alectinib significantly improved disease-free survival versus platinum-based chemotherapy in the global, phase 3, open-label, randomised ALINA trial. We report safety and health-related quality-of-life (HRQoL) outcomes from the ALINA trial. METHODS: Eligible patients aged 18 years or older with resected, ALK-positive, stage IB (&#x2265;4 cm)-IIIA NSCLC (per the American Joint Committee on Cancer and the Union for International Cancer Control Cancer Staging Manual 7th edition) and an Eastern Cooperative Oncology Group performance status of 0-1 were randomly assigned (1:1) via a block-stratified randomisation method to receive oral alectinib (600 mg twice daily) for 24 months or intravenous platinum-based chemotherapy for four 3-week cycles. Randomisation was stratified according to disease stage and race. The primary endpoint, previously reported, was disease-free survival. Safety was a secondary endpoint and HRQoL was an exploratory endpoint. Safety was assessed by the investigator as per the National Cancer Institute Common Terminology Criteria for Adverse Events version 5&#xb7;0 until 28 days after the last alectinib dose or chemotherapy cycle. HRQoL was assessed via the Short-Form 36-item health survey version 2 (SF-36v2) questionnaire at baseline, every 3 weeks to week 12, then every 12 weeks until disease recurrence, consent withdrawal, death, or week 96. Norm-based scoring was applied; clinically meaningful changes were defined using the SF-36v2 manual. Safety was assessed in the safety-evaluable population and HRQoL in the intention-to-treat population. This study is registered with ClinicalTrials.gov (NCT03456076) and is ongoing. FINDINGS: Between Aug 16, 2018, and Dec 8, 2021, 257 patients were assigned to receive alectinib (n=130) or chemotherapy (n=127). 123 (48%) patients were male and 134 (52%) were female; 143 (56%) were Asian. The safety-evaluable population comprised 128 patients who received alectinib and 120 patients who received chemotherapy; median duration of safety follow-up was 24&#xb7;8 months (IQR 22&#xb7;0-24&#xb7;9) in the alectinib group and 3&#xb7;7 months (IQR 3&#xb7;7-3&#xb7;8) in the chemotherapy group. The safety of adjuvant alectinib was generally consistent with its known profile. The most common grade 3-4 adverse events were blood creatine phosphokinase increased (eight [6%] of 128), alanine aminotransferase increased (two [2%] of 128), and blood bilirubin increased (two [2%] of 128) in the alectinib group, and neutrophil count decreased (12 [10%] of 120), neutropenia (ten [8%] of 120), and nausea (five [4%] of 120) in the chemotherapy group. Serious treatment-related adverse events occurred in two (2%; one each with appendicitis and pneumonitis) of 128 patients in the alectinib group and eight (7%) of 120 patients in the chemotherapy group ( most common were gastrointestinal disorders in three [3%] patients). No deaths due to adverse events were reported in either group. There were fewer discontinuations due to adverse events with alectinib (seven [5%]) versus chemotherapy (15 [13%]). A clinically meaningful difference in improvement from baseline was seen at week 12 for bodily pain, role physical, mental health, social functioning, and vitality SF-36v2 domains with alectinib; improvements in physical and mental HRQoL were maintained over 2 years of active treatment (at week 96, mean Mental Component Summary score: 49&#xb7;9 [SD 10&#xb7;4]; mean Physical Component Summary score: 48&#xb7;8 [SD 7&#xb7;2]) and reached levels similar to the general population (population norm: 50). INTERPRETATION: For patients with resected ALK-positive NSCLC, adjuvant alectinib had a manageable safety profile; HRQoL improved and was maintained over 2 years of active treatment. Together with the disease-free survival benefit seen in ALINA, these data support adjuvant alectinib as an important new standard-of-care for patients with resected ALK-positive NSCLC. FUNDING: F&#x2008;Hoffmann-La Roche.

Adult

Extent of resection as an independent predictor of survival for patients with glioblastoma as defined by the new WHO 2021 classification.

OBJECTIVE: Extent of resection (EOR) has previously been demonstrated to have an impact on survival in patients with glioblastoma (GBM). However, with the World Health Organization (WHO) 2021 reclassification of GBMs based on IDH-mutation status, patients with "IDH-mutant GBMs," who typically survive long term, were reclassified as WHO grade 4 IDH-mutant astrocytomas and removed from the GBM taxonomy. Therefore, it is unknown whether the previously reported impact of resection on survival was a false-positive result due to the inclusion of the less aggressive IDH-mutant tumors in previous datasets. This study aimed to determine the extent to which EOR remains an independent predictor of survival in patients with WHO 2021 GBM after the reclassification of IDH-mutant grade 4 astrocytomas. METHODS: All cases of GBM tumors (based on the pre-2021 GBM classification) that were newly diagnosed between 2005 and 2021 were identified in our institutional database and subsequently reclassified based on the updated WHO 2021 criteria using IDH status. Multivariable statistical analyses of demographic information, survival time, and EOR based on volumetric MRI were performed to determine the independent predictors of survival for the whole group of patients and for IDH-wildtype GBM patients exclusively. Additional analyses were performed to identify an EOR threshold for improvement in survival. RESULTS: Of the 523 tumors classified as GBM based on the pre-2021 taxonomy, 52 (9.9%) cases were reclassified as WHO grade 4 IDH-mutant astrocytomas, and the median survival of patients in this group was 7.9 years, whereas median survival of the IDH-wildtype GBM patients was 1.4 years. Multivariate analyses of the whole group demonstrated that IDH-mutant astrocytomas were associated with reduced hazard of death. In both the whole group (n = 523) and in IDH-wildtype GBMs (n = 471), higher EOR of the contrast-enhancing (CE) tumor was associated with reduced hazard of death, whereas older age or male sex was associated with increased hazard of death. Because most patients (90%) had high EOR values (> 81%), a statistically meaningful EOR threshold could not be established. CONCLUSIONS: These analyses demonstrated that EOR of the CE tumor is an independent predictor of survival and that greater EOR is associated with improved survival in WHO 2021 IDH-wildtype GBMs even after excluding grade 4 IDH-mutant astrocytomas. However, an absolute EOR threshold below which resection did not improve survival could not be established, raising concerns about prior cutoff assessments.

Humans

Longitudinal functional trajectory and surgical outcomes after intracranial meningioma resection: implications for surgical decision-making in older patients.

OBJECTIVE: As the population ages, meningiomas are increasingly encountered in older patients, yet longitudinal functional outcomes following surgery across age groups remain incompletely characterized. This study evaluated age-related differences in clinical and tumor characteristics, functional trajectory, and surgical outcomes. METHODS: This was a retrospective cohort study of 396 consecutive patients who underwent surgery for intracranial meningiomas at a single academic center between January 2023 and September 2025. Patients were stratified into 5 age groups (< 65, 65-69, 70-74, 75-79, and &#x2265; 80 years). Neurological deficits and Karnofsky Performance Status (KPS) were assessed preoperatively, at discharge, and at last follow-up. Logistic regression analyses identified predictors of prolonged length of stay (LOS) (> 5 days) and poor functional outcome at discharge (KPS < 80). RESULTS: Older patients presented with greater comorbidity burden, larger tumors, and lower preoperative KPS (all p < 0.05), while gross-total resection was achieved at comparable rates across all age groups (p = 0.504). A clinically meaningful inflection point was observed around age 75 years, with KPS < 80 at discharge rising from 7.4% and 9.7% in the < 65-year and 70- to 74-year subgroups and to 36.2% and 57.1% in the 75- to 79-year and &#x2265; 80-year subgroups (p < 0.001), and median LOS increased from 4 days in the younger groups to 9 and 7 days in the 75- to 79-year and &#x2265; 80-year groups (p < 0.001). However, recovery rates among patients who experienced functional decline at discharge were comparable across age strata. On multivariable analysis, independent predictors of prolonged LOS were age &#x2265; 75 years (OR 2.31, p = 0.019), diabetes mellitus (OR 2.85, p = 0.004), posterior fossa location (OR 2.1, p = 0.008), tumor diameter (OR 1.33, p < 0.001), postoperative edema (OR 2.58, p = 0.015), and neurosurgical complications (OR 3.18, p = 0.002). Independent predictors of poor functional outcome at discharge were age &#x2265; 75 years (OR 5.84, p < 0.001), lower preoperative KPS (OR 2.8, p < 0.001), posterior fossa location (OR 3.72, p = 0.003), neurosurgical complications (OR 3.56, p = 0.008), and recurrent meningioma (OR 2.89, p = 0.025). Among 70 endoscopic endonasal approach patients, higher preoperative deficit burden and subtotal resection rates were observed compared to open craniotomy, though overall functional outcomes were comparable. CONCLUSIONS: Surgical risk in meningioma resection increases from age 75 years onwards, yet recovery capacity following initial functional decline remains similar across all age groups. Preoperative functional status, tumor location, comorbidity burden, and recurrence history should guide surgical decision-making rather than age alone.

Humans

Effect of transcutaneous auricular vagus nerve stimulation on postoperative pain in patients undergoing thoracoscopic partial lung resection: a randomized, double-blind, controlled clinical trial.

BACKGROUND: Postoperative pain after thoracic surgery remains common and challenging. Transcutaneous auricular vagus nerve stimulation (taVNS) is a noninvasive neuromodulation technique with potential analgesic effects. This study aimed to evaluate the efficacy and safety of taVNS for postoperative pain management in patients undergoing thoracoscopic partial lung resection. METHODS: Adults undergoing thoracoscopic partial lung resection were randomized to active or sham taVNS. The primary outcome was cough pain intensity at 48h post-surgery, assessed by Numeric Rating Scale (NRS). Secondary outcomes included cough pain at 24h and 72h, resting pain, moderate-to-severe pain incidence,&#xa0;opioid consumption, quality of recovery, postoperative pulmonary complications , chest tube duration, hospital stay, postoperative nausea/vomiting, and adverse events. RESULTS: Among 119 analyzed patients (active n&#x2009;=&#x2009;60, sham n&#x2009;=&#x2009;59), active taVNS reduced cough pain scores at 24h, 48h, and 72h postoperatively, as well as resting pain (p < 0.05). It also lowered the incidence of moderate-to-severe cough pain at 24h and 48h, reduced cumulative postoperative opioid use at 24h and 72h, and decreased rescue analgesia on postoperative day 3 (p < 0.05). Active taVNS was associated with a lower incidence of postoperative pneumothorax (p < 0.05). No serious adverse events occurred. CONCLUSION: Perioperative taVNS was associated with a modest analgesic benefit and reduced postoperative opioid requirements after thoracoscopic partial lung resection. The observed reduction in postoperative pneumothorax requires cautious interpretation, and further multicenter trials are needed to determine its clinical utility.

Humans

Oliceridine used for patient-controlled analgesia on postoperative quality of recovery in patients undergoing laparoscopic gynecological tumour resection: a randomized clinical trial.

BACKGROUND: Oliceridine, a novel biased &#x3bc;-opioid receptor agonist, is widely used perioperatively, yet limited data exists regarding its impact on postoperative quality of recovery. This study investigated the effect of oliceridine-based&#xa0;patient-controlled intravenous analgesia (PCIA) on postoperative quality of recovery among patients undergoing laparoscopic gynecological tumour resection. METHODS: Ninety&#x2011;four female patients scheduled for elective laparoscopic gynecological tumour resection were included. Patients were randomized to two groups: oliceridine group (loading dose 1.5&#x2009;mg, PCIA 0.55&#x2009;mg/kg) or sufentanil group (loading dose 10&#x2009;&#x3bc;g, PCIA 3&#x2009;&#x3bc;g/kg). The primary outcome was the Quality of Recovery-40 (QoR-40) score on postoperative day 1. The secondary outcomes included the QoR-40 score, the numeric rating scale (NRS) pain score, the Hospital Anxiety and Depression Scale-Anxiety (HADS-A) score, the Fatigue, Resistance, Ambulation, Illness and Loss of weight (FRAIL) index and adverse events within 3 postoperative days. RESULTS: Higher QoR-40 scores were found in the oliceridine group on postoperative day 1 (182.9&#x2009;&#xb1;&#x2009;3.1 versus 177.5&#x2009;&#xb1;&#x2009;3.9, p&#x2009;<&#x2009;0.001). Compared with the sufentanil group, the oliceridine group showed better QoR-40 scores within 3&#x2009;days after operation. No significant differences were observed in NRS pain scores or HADS-A scores between the two groups (all p&#x2009;>&#x2009;0.05). However, the median FRAIL score in the oliceridine group was lower on postoperative day 2 (p&#x2009;=&#x2009;0.018). CONCLUSION: Oliceridine used in PCIA improves early postoperative recovery quality of patients undergoing laparoscopic gynecological tumour resection. It provides analgesic effect comparable to sufentanil and lowers incidences of postoperative frailty, nausea and vomiting. TRIAL REGISTRATION: Chinese Clinical Trial Registry, ChiCTR.org.cn, identifier: ChiCTR2400094271.

Humans

Adjuvant tislelizumab, lenvatinib, and capecitabine for resected biliary tract cancer: a prospective phase II trial.

BACKGROUND: This study aims to assess the efficacy and safety of a triplet adjuvant regimen consisting of tislelizumab, lenvatinib, and capecitabine following radical resection in patients with biliary tract cancer (BTC). METHODS: In this open-label, single-arm trial, patients with histologically confirmed BTC who had undergone curative resection were enrolled to receive adjuvant therapy within 4-16 weeks postoperatively. The treatment regimen consisted of tislelizumab (200 mg), lenvatinib (8 mg), and capecitabine (1250 mg/m2). The primary endpoint was the 1-year disease-free survival (DFS) rate. Secondary endpoints included median DFS, 2-year DFS rate, and 1- and 3-year overall survival (OS) rates, as well as safety profiles. Exploratory analyses were conducted to evaluate genomic alterations and prognostic biomarkers associated with clinical outcomes. RESULTS: Between February 24 and December 31, 2022, a total of 50 patients underwent treatment. As of the data cutoff (April 30, 2025), the median follow-up duration was 29.3 months (95% CI: 27.2-30.4). Intrahepatic cholangiocarcinoma constituted 78% of cases, with TNM stage III or IV observed in 40% of patients and poorly differentiated tumors identified in another 40%. The median DFS was calculated at 12.7 months (95% CI: 6.4-19.0), with DFS rates being reported as 55.5% (95% CI: 51.4%-57.6%) at 1 year and 30.8% (95% CI: 28.6%-32.9%) at 2 years, respectively. Median OS was not reached; however, the 1-year OS rate stood at an impressive figure of 93.8% (95% CI:&#x202f;91.7%-95.9%) while the 3-year OS rate declined to&#x202f;54.4% (95% CI: 50.0%-58.4%). By the exploratory analyses, FSIP2 mutation was associated shorter DFS (P&#x2009;<&#x2009;0.001). Treatment-related grade 3 adverse events occurred in 20% of patients, with no treatment-related deaths or grade&#x2009;&#x2265;&#x2009;4 toxicities reported. CONCLUSIONS: Adjuvant tislelizumab, lenvatinib, and capecitabine demonstrated clinical activity and tolerable safety in patients with resected BTC. Despite not meeting the primary endpoint, continued follow-up and further evaluation are warranted to better define the potential role of this combination regimen. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT05254847; registered prospectively on February 15, 2022.

Humans

Benign obstructive prostatic enlargement. A comparison between the results of treatment by transurethral electro-resection and the results of open surgery.

The results of 532 transurethral electro-resections (TUR) are compared with 67 open prostatectomies performed over a period of 9 years. The age ranges of the two patient materials were fairly similar. The incidence of associated medical diseases was rather high, 30.8%. The weight limit of the glands selected for TUR was preset at 80 g; the largest resected gland was 120 g. post electro-resection weight. The overall mortality rate for the series was 0.5%; for TUR 0.37% and for open surgery 1.5%. The per- and postoperative complications were fewer in the TUR group than in the open surgery group. The post-operative hospital stay was definitely shorter in the patients subjected to TUR.

Aged

The effect of ovarian wedge resection and incision on circulating gonadotropin in patients with polycystic ovarian disease.

Wedge resection (WR) was performed in 12 women with polycystic ovarian disease (PCOD), and Incision was done in 4 PCOD patients without any resection of ovarian tissue. Serum LH, FSH, estradiol-17beta (E2), progesterone, and urinary 17 ketosteroid (17KS) were measured serially before and after surgery. Neither WR nor Incision had any effect on FSH levels. Serum LH levels which had been hypergonadotropic preoperatively, became markedly lower 7--14 days after surgery in 12 wedge-resected and 2 incised patients. Within 7 days after WR there was a significant fall of E2 and a decrease of 17KS. In addition to those hormonal changes observed after WR, BBT charts turned out to be diphasic after the oral administration of dydrogesterone (Duphaston) in 12 out of 17 PCOD patients. The present data suggest that the reduction of the serum LH, induced by an interaction between the ovarian steroidogenesis and the suprapituitary mechanisms, might be involved in the occurrence of ovulation after WR in PCOD patients.

17-Ketosteroids

A multi-scale fusion model based on multi-phase contrast-enhanced CT for predicting pancreatic cancer resectability.

Purpose.Develop a multi-scale fusion model (MSFM) based on multi-phase contrast-enhanced computed tomography (CECT) to predict pancreatic cancer (PC) resectability, thereby assisting expert decision-making.Methods.This retrospective study enrolled 280 patients with PC from four institutions, which were randomly divided into a training cohort (202 patients) and an independent test cohort (78 patients). Three-phase CECT images (arterial, venous, and delayed phases) were used for modeling. The MSFM comprises two sub-networks: (1) a multi-phase fusion network for extracting cross-phase shared fusion features, (2) a phase-specific branch network for capturing phase-specific features; and a post-fusion strategy to generate the final predictive score by integrating the shared fusion features and three groups of phase-specific features. Additionally, a human-machine fusion deep learning model (HMfDL) was constructed by fusing the predictive score of the MSFM with expert assessments.Results.In the independent test, the MSFM achieved an AUC (area under the receiver operating characteristic curve) of 0.8385 (95% CI: 0.7521-0.9249), accuracy of 84.62%, sensitivity of 72.00%, and specificity of 90.57%. This performance outperformed single-phase models (AUC range: 0.7638-0.7781), two-phase models (AUC range: 0.7826-0.7864), and ten states-of-the-art classifiers (AUC range: 0.7404-0.7796). The HMfDL further improved the performance, reaching an AUC of 0.8626 (95% CI: 0.7853-0.9400), accuracy of 91.03%, sensitivity of 80.00%, and specificity of 96.23%. Notably, the HMfDL corrected 58.82% of misdiagnosis made by experts.Conclusions. The MSFM effectively fuses multi-phase CECT to enable highly accurate predictions of PC resectability, and provides valuable support for expert decision-making through HMfDL.

Humans