Time Of Surgery Research Articles

Robotic assistance for upper cervical instrumentation: report on accuracy and safety.

This study aims to evaluate the accuracy and safety of C1 lateral mass and upper cervical pedicle screw placement assisted by the TiRobot II system. Ten patients who underwent cervical spine surgery assisted by the TiRobot II system were included. Screw accuracy was assessed using the Gertzbein-Robbins scale and by comparing the final screw positions with pre-planned trajectories. Deviations in screw tip, tail, and angle were recorded. Clinical data, including symptoms, surgical outcomes, and postoperative follow-up, were collected. Neurological improvement was evaluated using pre- and post-operative mJOA scores, with recovery rates calculated by Hirabayashi's method to assess outcomes 3months after surgery. A total of 30 screws were placed in 10 patients. All screws (30/30) were within the clinically acceptable range, with 93.33% (28 screws) classified as Grade A and 6.67% (2 screws) as Grade B. In the sagittal plane, the average tip deviation was 1.82 ± 0.79mm, tail deviation 1.64 ± 0.60mm, and angular deviation 1.92 ± 1.39°. In the axial plane, tip deviation was 1.96 ± 0.87mm, tail deviation 1.92 ± 0.65mm, and angular deviation 2.01 ± 1.07°. The average surgery time was 318.80 ± 66.07min, with a mean EBL of 205.00 ± 55.03mL. Postoperative mJOA scores significantly improved from 8.10 ± 1.97 to 12.60 ± 1.78 (p < 0.05), with a 52 ± 14% recovery rate. All patients showed significant symptom improvement. The TiRobot II system demonstrates the capability to precisely execute pre-planned trajectories and improves the accuracy and safety of C1 lateral mass and upper cervical screw placement.

Proposal for a pacemaker implant technique with minimum radiation exposure

Objective: To describe a standardized technique for implanting a pacemaker to reduce the time of surgery and radiation exposure and to demonstrate the results in a series of patients. Methods: Through descriptive and cross-sectional statistics, 109 patients undergoing dual-chamber (DDD) and single-chamber (VVI) pacemaker implantation were evaluated, using a standardized technical approach used in the cardiac surgery service of Santa Casa de Misericórdia of Ponta Grossa-PR, Brazil, from November 2016 to November 2019. Clinical aspects, implant indication, implant times, and radiation time were studied. The technique was described, and its most relevant aspects were discussed. Results: 68.81% of the pacemakers were DDD and the surgical time ranged from 11’22’’ to 34’43’’, with a median of 18’15’’. In these cases, the fluoroscopy time ranged from 34’’ to 5’10’’, with a mean of 1’42’’ and a 16.9 mGy median amount of radiation. The time to implant the VVI pacemaker ranged from 12’ to 42’, with a median of 17’12’’. The fluoroscopy time ranged from 26’’ to 6’25’’, with a mean of 1’41’’ and the median amount of radiation was 13.6 mGy. Conclusion: The technique proved to be agile, safe, with low fluoroscopy times and small amount of radiation. There were no postoperative complications. However, few studies were found for comparison.

Association Between the Time of Surgery and the Incidence of Postoperative Nausea-Vomiting: A Propensity Score Matched Analysis.

Background The probability ofpostoperative nausea and vomiting (PONV) may be influenced by the time of day.Since therehas been no recent study published exploring this association, we conducted a study to determine the effect of surgical time of day on PONV. Methods With ethics approval, data of all patients undergoing elective non-cardiac non-neurosurgery, with a high risk of PONV, and which had a 24-hour assessment of PONVbetween October 2017 and December 2020 were extracted. Surgical sessions were classified as either morning surgery (defined as start-time and end-time before noon)or afternoon surgery (defined as surgery start-time at or after 12 noon). Those patients who had surgical sessions extending from morning sessions to afternoon sessions were excluded. A propensity-score-matching (PSM) based on 1:1 matching was performed to potential biases. For the entire study population before matching, we used Pearson's chi-square test or Fisher's exact test for categorical variables, and Student's t-test or Mann-Whitney U-test for normally or non-normally distributed continuous variables, respectively. For the matched study population, we used conditional logistic regression to test for differences. A p-value of <0.05 was considered statistically significant. Results Of the 3808 surgical sessions, 1439 surgical sessions were excluded from the analysis because they extended between morning and afternoon surgery. After 1:1 PSM, 1043 matched pairs were obtained. The incidence of PONV, prior to matching, remained statistically insignificant even after PSM. Conclusion We found that the time of surgery (morning or afternoon) did not affect both the overall incidence and severity of PONV. The association between PONV and time of day remained statistically insignificant prior to and after propensity matching for a number of covariates.

Laparoscopic Salpingectomy Regulates The Expression of Endometrial Homeobox Genes (HOXA9, HOXA10, HOXA11, HOXD10) and HOX Transcript Antisense Intergenic RNA in Women with Communicating Hydrosalpinx: A Prospective Study.

This study aimed to determine the alteration of endometrial expression levels of HOXA9/HOXA10/ HOXA11/HOXD10 genes and HOX transcript antisense intergenic RNA (HOTAIR) in mid-luteal phase endometrium in patients with hydrosalpinx before and after salpingectomy. In this prospective study, 14 infertile women with unilateral hydrosalpinx who were scheduled for laparoscopic salpingectomy were evaluated. The presence of hydrosalpinx was confirmed by hysterosalpingography or transvaginal 2D-ultrasonography. All patients had normal hormonal profiles, body mass index, and regular menstrual cycles identified by mid-luteal serum progesterone. Fourteen healthy fertile age-matched women with a successful pregnancy history were considered the control group. Mid-luteal-phase endometrial biopsies were performed at the time of surgery and during the mid-luteal phase of the fourth treatment cycle by Pipelle. After tissue collection, RNA extraction and cDNA synthesis were performed. Real-time polymerase chain reaction (PCR) technique was used for quantitative gene expression of HOXA9/HOXA10/ HOXA11/ HOXD10 and lnc HOTAIR. The endometrial expression of HOXA9 (P<0.001), HOXA10 (P=0.001), HOXA11 (P=0.003), and HOXD10 (P=0.004) were significantly lower in the patients with hydrosalpinx compared to the controls. After salpingectomy, we observed a significant increase in the endometrial HOXA9 (P=0.006) and HOXA10 (P=0.023) mRNA expression levels compared to before salpingectomy samples. Similarly, a significant upregulation in endometrial HOXA11 (P= 0.013) and HOXA10 mRNA expression levels (P=0.012) were detected in postoperative samples compared to preoperative tissue. Moreover, the lnc HOTAIR was significantly higher in the endometrium-induced hydrosalpinx fluid than in controls (P=0.020), which had a 2.89-fold decrease following salpingectomy (P=0.010). Elevated endometrial lncRNA HOTAIR may disrupt the expression of endometrial receptivity HOX genes in women with hydrosalpinx. However, our results failed to show a significant inverse correlation between HOTAIR and HOX genes due to limited sample size. Further studies with larger sample sizes are required to investigate HOTAIR inverse co-expression with HOX genes in these subjects.

Outcomes of sliding hip screw fixation in stable versus unstable intertrochanteric hip fractures

Purpose: Unstable intertrochanteric (IT) fractures are common orthopedic injuries in the elderly people with high morbidity. The treatment of unstable IT fractures with sliding hip screw (SHS) is still controversial. The purpose of our study is to assess the outcomes of conventional SHS in unstable IT fractures in comparison to stable ones. Methods: A total of 35 stable and 23 unstable IT fracture cases were treated with SHS between January 2017 and December 2018. Patients were evaluated for infection, revision rate, screw cut-out, development of post-traumatic arthritis or heterotopic ossification, and mortality. Results: The mean age of the patients at the time of surgery was 69.8 and 73.9 years for stable and unstable IT fractures, respectively, with 38 males (25 stable vs. 13 unstable) and 20 females (10 in each group). The mean follow-up was 42.2 and 49.4 weeks in stable and unstable IT fractures, respectively. We found a significant association between the occurrence of screw cut-out in unstable fractures compared to stable ones (17.4% vs. 0%, respectively, p = 0.01). There was an obvious trend for nonunion and higher revision rates in unstable IT fractures (17.4% vs. 2.9%, p = 0.056). Logistic regression analysis did not reveal any statistically significant confounder that might affect the rates of fracture union or revision rates. Post-traumatic arthritis and heterotopic ossification occurred in one case of unstable IT fracture. There were no reported cases of infection. Conclusion: There are higher risks of screw cut-out, nonunion, and the need for revision when the SHS is used to treat unstable IT fractures.

Late Phase Testicular Torsion in Pre-Geriatic Age: A Case Report

Background: Testicular torsion is a urological emergency caused by a twist of spermatic cord, which result in testicular tissue ischemia and requiring immediate surgery. The incidence occurred generally in children and adolescents, rarely found in adults. Severe Scrotal pain is the most common manifestation of testicular torsion. The definitive treatment for testicular torsion is surgery, either one of orchidopexy or orchidectomy. The prognosis of testicular torsion depends on the onset of symptoms and the decision time for surgery. Case Report: A 52-year-old man presented to emergency department with a history of gradual severe right-sided scrotal pain (visual analogue scale 8) radiated to the right groin in the last 3 day before admission. Previously, the patient's genitals were hit by the table. On physical examination, the testicles were found to be asymmetrical, swollen, redness, tenderness, and the testicle felt hard and immobilized, either the cremaster reflex or the Phren sign test were negative. The TWIST score was 6 (high risk for testicular torsion). Orchidopexy and orchidectomy were performed immediately without Scrotal Doppler Ultrasonography due to operational problems. Histopathology examination of the orchidectomy specimen impression showed an inflammation sign with exudative fluid presentation. Conclusion: Gradual Severe scrotal pain manifestations should be suspected as testicular torsion as soon as possible before it evolves into later phase. One of the causes of late phase testicular torsion is late admission to Hospital. Surgical emergency action should be taken considering theemergency state without waiting for ideal sonography

Traumatic Abdominal Wall Hernia, often missed diagnosis in blunt trauma and delayed elective repair: A Case Report

Background: Traumatic Abdominal Wall Hernia (TAWH) is a rare type of hernia following blunt abdominal trauma that can easily missed. Always have high clinical suspicion following blunt trauma. Ultrasound scans and CT scans are particularly useful investigation to diagnose TAWH and associated abdominal injuries. Surgical repair is the definitive management of TAWH. Case description: This report presents a case of a 57-year-old male who presented abdominal wall hernia following blunt trauma to the abdomen and the diagnosis and management of TAWH. Conclusion: The timing of surgery depends on the concomitant injury. Delayed elective repair may be safe and cause less postoperative complications in stable patients. Delayed repair carries the risk of bowel incarceration and strangulation.

Removal of Metallic Foreign Bodies with Complete Penetration of the Cornea: Introduction of a New Approach.

The purpose of this study was to present a new ab interno approach and relevant case series using a polymer-tipped cannula for the removal of metallic foreign bodies that penetrate the full thickness of the cornea and are located in the posterior corneal region. Corneal foreign bodies located on the posterior side of the cornea were gently pushed toward the epithelial side with a polymer-tipped cannula placed using a side-port incision, to be removed without damaging the corneal endothelial layer. The polymer-tipped cannula is specially angled to keep it at a distance from the corneal endothelial layer. In this way, unnecessary endothelial contact and the risk of possible endothelial loss are minimized. The foreign body was held by the epithelium with forceps and carefully removed along the corneal perforation line. This technique was performed in 5 eyes of 5 patients. The mean patient age at the time of surgery was 38.0 ± 12.1 years (range, 28-59 years). Anterior segment optical coherence tomography showed a metallic foreign body and its shadow that completely penetrated the cornea with the deterioration of the endothelial layer in all cases. In all cases, the corneal foreign body was successfully removed. While preoperative corneal endothelial cell density was 3040.0 ± 512.8 cells/mm2, postoperative corneal endothelial cell density was 2927.2 ± 608.1 cells/mm2 at the third postoperative month, and there was no significant corneal endothelial cell loss in any of the cases (P = 0.31). The ab interno approach, performed with a polymer-tipped cannula for the removal of corneal foreign bodies that penetrate deeply, stands out as an important surgical method. This method offers a reliable and effective solution by preventing the foreign body from falling into the anterior chamber and minimizing endothelial damage.

Transforming Subdural Hematoma Treatment in the Elderly: Insights from an Endoscopic Case Series.

Subdural hematoma (SDH), a critical brain condition, significantly affects the elderly, making traditional surgeries risky due to their length and potential for blood loss. Endoscope-assisted evacuation offers a safer, less invasive alternative by reducing operation time and minimizing damage, providing an effective solution for older patients. This study evaluated six patients treated with endoscopic evacuation for different stages of SDH from August 2019 to July 2023. Selection criteria were based on altered consciousness, lack of severe brain contusion, SDH thickness over 1 cm, or midline shift over 0.5 cm. The technique used a burr hole and rigid lens endoscope for hematoma removal, focusing on shorter surgery times and better outcomes. Patients aged between 63 to 84 years showed no surgical fatalities, with all recovering well by discharge. Hematoma clearance rates were 76.9% at three days, improving to 96.8% after one month. Endoscope-assisted evacuation is a safe, efficient treatment for elderly patients with various stages of SDH, offering a less invasive option with potential for better outcomes. It supports the trend towards minimally invasive neurosurgery, with further research needed to optimize patient selection and understand long-term benefits.

Spine deformity surgery in patients with Beals syndrome can be effectively performed but does risk revision surgery.

Beals syndrome or congenital contractual arachnodactyly is a rare disorder characterized by multiple joint contractures, Marfanoid body habitus and crumpled ears and has been associated with scoliosis. This study reports a clinical series of patients with Beals syndrome who have had surgical treatment for their spinal deformity. A retrospective review of all patients at a single institution who had a genetically-confirmed diagnosis of Beals syndrome and had surgical treatment for their scoliosis were reviewed for surgical outcome and complications. There were eight patients who had surgery at an average age of 11.5years, four were female and four had cardiovascular abnormalities requiring treatment. The preoperative coronal Cobb was 82.3° which improved to 42.1°(46.8% correction), and 46.5° (43.5% correction) at final follow-up. Preoperative halo-gravity-traction was used in three patients. Three patients had a posterior instrumentation and fusion (PSFI), 2 a combined anterior/PSFI, 1 had tethering, 1 with PSFI with posteriorly-approached discectomy, and 1 with a PSFI and vertebral column resection. One of the eight patients had a critical intraoperative neuromonitoring event but was normal following appropriate responses and no patient awoke with neurologic deficits. Two had an unplanned return to the operating room for implant dislodgement and each had a successful revision. Scoliosis associated with Beals syndrome can have large curves at the time of surgery and require a variety of surgical approaches to achieve a good result. Revision surgery with return to the operating room is necessary in 25% of patients.

Risks of Organ Preservation in Rectal Cancer: Data From Two International Registries on Rectal Cancer.

Organ preservation has become an attractive alternative to surgery (total mesorectal excision [TME]) among patients with rectal cancer after neoadjuvant therapy who achieve a clinical complete response (cCR). Nearly 30% of these patients will develop local regrowth (LR). Although salvage resection is frequently feasible, there may be an increased risk for development of subsequent distant metastases (DM). The aim of this study is to compare the risk of DM between patients with LR after Watch and Wait (WW) and patients with near-complete pathologic response (nPCR) managed by TME at the time of reassessment of response. Data from patients enrolled in the International Watch & Wait Database (IWWD) with cCR managed by WW and subsequent LR were compared with patients managed by TME (with ≤10% cancer cells-nPCR) from the Spanish Rectal Cancer Project (VIKINGO project). The primary end point was DM-free survival at 3 years from decision to WW or TME. The secondary end point was possible risk factors associated with DM. Five hundred and eight patients with LR were compared with 893 patients with near-complete response after TME. Overall, DM rate was significantly higher among LRs (22.8% v 10.2%; P ≤ .001). Independent risk factors for DM included LR (v TME at reassessment; P = .001), ypT3-4 status (P = .016), and ypN+ status (P = .001) at the time of surgery. 3-year DM-free survival was significantly worse for patients with LR (75% v 87%; P = .001). When stratified for pathologic stage, patients with LR did significantly worse through all stages (P ≤ .009). Patients with LR appear to have a higher risk for subsequent DM development than patients with nPCR managed by TME at restaging irrespective of final pathology. Leaving the primary undetectable tumor in situ until development of LR may result in worse oncologic outcomes.

Plasma cytokines are associated with major adverse cardiovascular events in follow-up of patients undergoing carotid endarterectomy

Abstract Background Patients with carotid artery disease undergoing carotid endarterectomy (CEA) have a high risk of experiencing Major Adverse Cardiovascular Events (MACE) after surgery. The occurrence of MACE in CEA-treated patients is not predicted by common cardiovascular (CV) risk factors. Purpose We aimed to identify the association between plasma and plaque inflammatory cytokines and the incidence of MACE in the follow-up after CEA. We hypothesized that MACE is related to a higher level of circulating inflammatory cytokines at the time of surgery. Methods We prospectively enrolled patients with carotid artery disease undergoing CEA. Plasma and carotid plaques were collected during the surgery. Inflammatory cytokines (MCP-1/CCL2, IL-8/CXCL8, IFN-gamma, IL-10, IL-1beta/IL-1F2, IL-6, PDGF-AA, PDGF-AB/BB, TNF-alpha, VEGF) were measured in plasma and tissue homogenates using a customized 10-plex Luminex assay. Baseline demographics and clinical data for all the patients were extracted from electronic health records. MACE after CEA was defined as a composite measure of nonfatal cardiac events such as myocardial infarction with or without revascularization, cerebrovascular events (ischemic stroke, TIA, and amaurosis fugax), and all-cause mortality. Results Of 107 patients who underwent CEA with a median age of 73 (67-78) years, 57 (53.2%) experienced MACE during a median follow-up of 5.2 [2.2-9.3] years: 23 (40.3%) cardiac events, 9 (15.7%) CVA, and 25 (43.8%) all-cause mortality. Plaque cytokines levels did not differ between the groups with and without MACE in the follow-up after CEA. Instead, plasma cytokines were associated with MACE in the follow-up after CEA, as summarized in Figure 1. In the logistic regression analysis, plasma levels of MCP-1/CCL2, IFN-gamma, and TNF-alpha were independent predictors of MACE in follow-up post-CEA in univariate and multivariable models adjusted for CV risk factors such as age, BMI, systolic and diastolic blood pressure, low-density lipoprotein, high-density lipoprotein, and glucose level: MCP1/CCL2 (HR 1.009 [1.002-1.015]; p=0.007), IFN-gamma (HR 1.368 [1.014-1.845]; p=0.040), and TNF-alpha (HR 1.121 [1.022-1.228]; p=0.015) (Table 1). Conclusions Plasma levels of CCL2, IFN-gamma, and TNF-alpha are associated with the high incidence of MACE in the follow-up after CEA, indicating that these are potential biomarkers of MACE in this patient population and potential therapeutic targets in patients' progression of systemic atherosclerosis.Plasma cytokines and MACE after CEACytokines logistic regression analysis

Mini-Invasive Thoracic Surgery for Early-Stage Lung Cancer: Which Is the Surgeon's Best Approach for Video-Assisted Thoracic Surgery?

Objectives: The choice of the best Video-Assisted Thoracic Surgery (VATS) surgical approach is still debated. Surgeons are often faced with the choice between innovation and self-confidence. The present study reports the experience of a high-volume single institute, comparing data of uni-portal, bi-portal and tri-portal VATS, to find out the safest and most effective mini-invasive approach, leading surgeon's choice. Methods: Between 2015 and 2022, a total of 210 matched patients underwent VATS lobectomy for early-stage cancer, using uni-portal (fifth intercostal space), bi-portal (seventh space for optic and the fifth), and tri-portal (seventh and the fifth/four) access. Patients were matched for age, BPCO, smoke, comorbidities, lesions (size and staging) to obtain three homogenous groups (A: uni-portal; B: bi-portal; C: tri-portal). The surgeons had comparable expertise. Data were retrospectively collected from institutional database and analyzed. Results: No differences were detected considering time of surgery, length of hospital stay, complications, conversion rate, specific survival, and days of chest tube length of stay. Better results on chest tube removal were described in group A (mean 1.1 days) compared to B (mean 2.6 days) and C (mean 4.7 days); nevertheless, they not statistically significant (p = 0.106). Conclusions: No significant differences among the groups were described, except for the reduction in chest tube permanence in group A. This allows to hypothesize an enhanced recovery after surgery in this group but the different approaches in this series seem to guarantee comparable safety and effectiveness. Considering no superiority of one method above the others, the best suggested approach should be the one for which the surgeon feels more confident.

Histopathology and prognosis of new-onset atrio-ventricular block after coronary artery bypass graft surgery

Abstract Background Atrio-ventricular block (AVB) can often be seen in patients undergoing cardiac procedures. Nevertheless, little is known about the histopathological features of new-onset postoperative AVB prior to the clinical manifestation and its prognostic impact. Purpose This study explores the association of first-degree AVB in ECG and postoperative outcome of patients with either preoperative or a new-onset AVB. Furthermore, histopathological features were analyzed to distinguish the characteristics between preoperative and postoperative AVBs compared to no AVB. Methods CAREBANK is a prospective study with atrial biopsies obtained at the time of open-heart cardiac surgery and long-term follow-up focusing on the adverse events. We analyzed preoperative as well as postoperative ECGs derived after index hospitalization (1-18mo) in patients undergoing CABG. The definition of first-degree AVB was PR-interval ≥200ms. The main outcome of interest was follow-up mortality. Histopathological analysis was used to assess the amount of fibrosis, cardiomyocytes, number of nuclei and macrophages. Results Median follow up time was 4.0 (IQR 2.7 – 5.0) years. First-degree AVB was found in 84/373 (22.5%) preoperative ECGs. Altogether 25/289 (8.7%) cases where ECG was available (after excluding preop AVB, atrial fibrillation) developed first-degree AVB after index hospitalization. New-onset first-degree AVB was associated with increased mortality (aHR 4.033 (95-CI% 1.019–15.965, p=0.047). In atrial histopathological analysis, area covered by cardiomyocytes (p=0.033) as well as area covered by nuclei (p=0.047) were smaller in those with new-onset AVB after surgery, but not in those with preoperative first-degree AVB (p=0.692 and p=0.384) as compared with controls, respectively. Similarly, the total area of fibrosis was greater in those with preoperative first-degree AVB (p&amp;lt;0.001), but not in those with postoperative new-onset AVB (p=0.244). When compared with controls, share of CD68 positive macrophages was similar (p=0.073), but anti-inflammatory CD206 positive M2 macrophages were absent in patients with new-onset AVB (p=0.042). Conclusion Patients with new-onset AVB after CABG have increased mortality in the long-term compared to those without. Histopathology identifies marked differences in macrophage populations between those with and without new-onset AVB.

Prognostic impact of left ventricular myocardial work in patients undergoing surgery for primary mitral regurgitation

Abstract Background Although left ventricular ejection fraction (LVEF) is widely used as a parameter for the assessment of LV systolic function, LVEF can overestimate LV systolic function in patients with severe mitral regurgitation (MR) due to its high load-dependency. Echocardiography-based, left ventricular myocardial work (LVMW) can assess LV function by incorporating LV afterload. Purpose This study aims to evaluate the prognostic value of LVMW indices in patients with primary MR undergoing mitral valve surgery. Methods Individuals who underwent mitral valve surgery for severe primary MR were included. All patients underwent transthoracic echocardiography before surgery. LVMW was derived from a vendor-specific package which integrates LV global longitudinal strain with sphygmomanometric blood pressure to construct pressure-strain loops during the cardiac cycle. (Figure 1) For the LVMW indices, previously-established normal values were used as thresholds. The primary endpoint was all-cause mortality after mitral valve surgery. Results A total of 309 patients (mean age 63 ± 12 years, 68% male) with severe, primary MR who underwent surgery, were included. The mean LV global work index (LVGWI) was 1977 ± 537 mmHg% and 132 (43%) patients had impaired LVGWI (≤ 1900 mmHg%). During a median follow-up of 5.0 years (interquartile range, 2.5-8.9), 27 (8.7%) patients died after mitral valve surgery. Patients with impaired LVGWI or LV GLS (≤ 20%) had lower survival rates compared to the group with preserved LVGWI (p &amp;lt;0.01) or LVGLS (p = 0.02), whereas there was no significant difference in the survival rate between patients with LVEF ≤ 60% and &amp;gt; 60%. (Figure 2) Furthermore, LVGWI ≤ 1900 mmHg% demonstrated incremental prognostic value over LVGLS (p = 0.049) for all-cause mortality. Conclusions In patients with severe, primary MR who underwent surgery, impaired pre-operative LVGWI was associated with a higher mortality risk. In addition, impaired LVGWI had incremental prognostic value over LVGLS. Based on these findings, LVMW is a promising parameter for predicting postoperative outcome and determining the optimal timing of valve surgery in patients with severe, primary MR.Fig1.Echo-derived Myocardial workFig2.Kaplan-Meier curves

Long-term efficacy of concomitant surgical ablation for atrial fibrillation with cardiac surgery

Abstract Background Concomitant surgical ablation (SA) is recommended at the time of cardiac surgery in patients with atrial fibrillation (AF) but it is only performed in the minority due to perceived barriers such as increased risk, longer procedure duration and additional technical skills required [1,2]. Furthermore, long-term outcome reporting is limited to only a few high-volume centres. Purpose We sought to report on our centre’s 11-year experience with cardiac surgery and concomitant SA. Methods This was a retrospective observational study on 625 patients with AF who underwent SA in addition to other cardiac surgery at our centre between April 2011 and March 2022. Patients undergoing standalone SA were excluded. Complications were recorded up to 30 days post-procedure. Freedom from atrial tachyarrhythmias (ATA) was determined by electrocardiography, Holter monitoring and pacemaker interrogation at various time points, if available, with or without additional therapies for AF. Results Mean age was 69 +/- 9.9 years and the median duration of AF was 1.2 years (interquartile range 0.4-3.8), persistent in 79% of patients. The median left atrial volume index (LAVI) was 55 ml/m2 (interquartile range 43-71). Concomitant surgery included coronary artery bypass grafting (26%), mitral (68%), aortic (27%), tricuspid (21%) and/or other (5%). Biatrial Cox-Maze IV was performed in 51% of patients and the left atrial appendage was occluded in 74%. Major complications included 30-day mortality (3%), stroke (3%) and pacemaker implantation (4%). Freedom from ATAs was 80% (312/391), 64% (154/240), 53% (76/144) and 44% (33/75) at 1, 3, 5 and 7 years, respectively (Figure 1). Cox regression demonstrated diabetes mellitus, AF duration, persistent AF and LAVI as predictors of 7-year ATA recurrence. Conclusion Concomitant SA for AF has good early and acceptable longer-term rhythm outcomes with no significantly increased complication rate, which should encourage greater uptake of the procedure.

Increasing Trends in Matriculant Publications in the Residency Match: A Scoping Review.

The National Resident Matching Program (NRMP), which is responsible for matching medical students with residency programs in the United States, quantifies an applicant's research by aggregating their total number of publications, presentations, and abstracts (PPA).However, the program does not differentiate between peer-reviewed publications, which are typically academic studies evaluated by peers in the field, and other types of research output. While several studies have examined the peer-reviewed publications of matriculants in specific specialties, none have compared these specialties to identify trends across the residency match. Comparing peer-reviewed publications across specialties helps the NRMP, medical schools, and applicants identify evolving research expectations and align efforts with specialty-specific benchmarks.Therefore, this scoping review aimed to comprehensively synthesize studies that investigated the peer-reviewed publications of matched medical students. A systematic literature search was performed in September 2023 to identify and extract bibliometric variables from studies analyzing the peer-reviewed publications of matriculated medical students. Of 164 articles screened, 18 studies across 10 specialties were included. Neurosurgery matriculants had the most publications (4.67), whereas ophthalmology had the least (1.23). The proportion of students with zero peer-reviewed publications at application ranged from 22% (neurosurgery) to 47% (orthopedic surgery) and decreased over time for orthopedicand plastic surgery. Publications increased over time for nearly all reported specialties. Higher publication quantity and author H-index were associated with matching into higher-tiered residency programs across all analyzed specialties. The quantity and quality of medical student peer-reviewed publications continueto increase, and higher quality and quantity are associated with matching into higher-tiered programs. Given these trends, medical schools/advisors should continue fostering research mentorship, and students should prioritize both research quantity and quality to optimally prepare for the match. Simultaneously, residency selection committees and policymakers should critically assess whether strong research backgrounds are an optimal method to stratify future physicians and whether there are other avenues to prevent a growing research arms race.

Cardiovascular health in women with turner's syndrome: a 3-year single centre audit

Abstract Background Turner’s syndrome (TS) is the most common genetic abnormality affecting females and is characterised by complete or partial absence of the X chromosome. Mortality is predominantly related to cardiovascular disease (1). Risk of life-threatening aortic dissection is 40 per 100,000 (2). Indexed aorta size (ASI) to body surface area (BSA) &amp;gt;20mm/m² is considered abnormal. An ASI of ≥25mm/m² is associated with increased risk of aortic dissection (3). Despite this there is a paucity of data in the literature regarding TS cardiovascular disease and providing evidence-based care can be challenging. Purpose Define cardiovascular disease, with focus upon aortopathy in our TS Cardiovascular Clinic (TCC). Methods Single centre retrospective medical record analysis of 248 women with TS (2021-2024) Results Patient baseline characteristics; mean age 37 years (range 18-75yrs), height 150cm (132-169cm), weight 62kg (37-130kg), BSA 1.55m² (1.19-2.17m²). 65 patients (29%) had bicuspid aortic valve (BAV), 19 (8%) and 5 (3%) had repaired and un-repaired aortic coarctation (CoA) respectively. 30 (13%) had other congenital heart disease, with most common was partial anomalous pulmonary venous connection (12 patients: 5%). 22/248 patients had previous aortic root surgery; 20 elective (mean ASI 29mm/m², range 26-33mm/m², mean age at time of surgery 42 years); 2 presented with aortic dissection (ASI 21mm/m²; pregnant, BAV &amp; 24mm/m²; tri-leaflet aortic valve, TAV). Data was available for 221 unoperated patients (figure 1). The site of maximal dimension was observed at the sinus of Valsalva in 70% compared to 30% at the ascending aorta. 130 patients (59%) had maximal ASI of &amp;lt;20mm/m². Dimensions of 20-23mm/m² and 23-25mm/m² were seen in 64 (29%) and 18 (8%) patients respectively. 7 patients (3%) had a maximal ASI of &amp;gt;25mm/m². 4 patients (2%) had an absolute maximal dimension of 40mm with ASI of 23mm/m² for all four. 9/11 patients with dimension ≥25mm/m² or 40mm had a body mass index (BMI) &amp;gt;25kg/m². Review of medical history for patients at and above threshold for risk of aortic dissection revealed referral to or previous discussion in an Aortic multi-disciplinary meeting (MDT) with a plan for ongoing surveillance. 57 patients (35%) with TAV had significant aortopathy (mean age 46years, range 19-75years) compared with 33 (51%) with BAV (mean age 39yrs, range 22-72 years) (figure 2). Review of patients &amp;gt;55years of age demonstrated a very similar burden of aortopathy in both TAV (14%) and BAV (15%) populations. Conclusions A high burden of cardiovascular disease exists within our TS population. There is a very high prevalence of aortopathy, increasingly with age and both with and without the presence of a bicuspid aortic valve. More published data is needed to help better define those at risk.

Survival improvement over time in renal cell carcinoma treated with nephrectomy: A longitudinal propensity score-matched study.

Surgical treatment for renal cell carcinoma (RCC) has drastically evolved for the past 30 years. However, survival outcomes of RCC according to times have not been fully elucidated, especially in the real-world setting. This study aimed to assess the survival improvement over time in RCC treated with nephrectomy by analyzing a longitudinal cohort using propensity score matching (PSM). We retrospectively reviewed 960 patients with RCC who underwent radical or partial nephrectomy between 1981 and 2018. Patients were divided into two groups according to the time of surgery (1981-1999 vs. 2000-2018). Using PSM, overall survival (OS), cancer-specific survival (CSS), and recurrence-free survival (RFS) were compared between the two groups. Overall, 255 and 705 patients underwent surgery in the earlier (1981-1999) and recent (2000-2018) eras, and PSM derived a matched cohort of 466 patients (233 patients per each group). All patients in the earlier era cohort received open surgeries, whereas about a half (47.4%) of patients in the recent era cohort received minimally-invasive (laparoscopic/robotic) surgeries. After PSM, 137 (29.4%) patients developed recurrence, 105 (22.5%) died of RCC, and 113 (24.2%) died from other causes, with a median follow-up period of 90 months. The recent era cohort had significantly longer OS, CSS, and RFS than the earlier era cohort. Patients with RCC treated in the recent era (2000-2018) showed significantly longer survival than those treated in the earlier era (1981-1999). The improved survival might be attributable to the prevalence of minimally-invasive (laparoscopic/robotic) surgeries.

Comparative effectiveness of Castor single-branch stent and hybrid surgery for the left subclavian artery in managing acute Type B aortic dissection with an inadequate proximal landing zone

Abstract Background Our study aims to compare the clinical outcomes and risk factors for adverse events between TEVAR with branch stent-graft and Hybrid surgery for the reconstruction of the left subclavian artery. Methods We retrospectively analyzed data from patients with insufficient proximal landing zones of acute Type B aortic dissection treated at our hospital from January 2017 to December 2022. According to the surgical method, patients were divided into TEVAR group (n=58) and Hybrid group (n=69). The primary endpoint was all-cause mortality. Results The diameter of the proximal landing zone in the TEVAR group was larger than that in the Hybrid group (31.5mm vs 30.3mm, P=0.037). Early Results: There was no significant difference in major adverse events and 30-day mortality between the TEVAR and Hybrid groups. The Hybrid group had significantly longer surgery time (110min vs 238min), hospital stay (8d vs 12d), and ICU stay (0d vs 1d) compared to the TEVAR group (P&amp;lt;0.001). Mid-Term Results: There was no statistical difference in mid-term mortality rates (3.4% vs 8.7%; P=0.398) between the TEVAR and Hybrid groups. The rate of mid-term adverse events was significantly higher in the Hybrid group compared to the TEVAR group (23.2% vs 6.9%; P=0.023). The rate of re-intervention was significantly higher in the Hybrid group compared to the TEVAR group (17.4% vs 3.4%; P=0.027). The 18-month freedom from mid-term adverse event rate was 93.1% (95% CI, 86.4% - 99.8%) for the TEVAR group and 76.8% (95% CI, 66.6% - 87.0%) for the Hybrid group. There was a significant difference in the rate of mid-term adverse events between the TEVAR and Hybrid groups, with the Hybrid group being higher (6.9% vs 23.2%, P=0.013). COX regression results showed: Diameter of the proximal landing zone (HR=0.6, 95%CI=0.4–0.9, P=0.009) was an independent risk factor for postoperative aortic-related adverse events. Conclusions TEVAR reconstruction of LSA and hybrid surgery are both safe and effective treatments for acute Type B aortic dissection with insufficient proximal landing zones. There is no difference in early adverse events and 30-day mortality rates between TEVAR reconstruction of LSA and hybrid surgery. Compared to hybrid surgery, TEVAR reconstruction of LSA has the advantages of shorter operation time, hospital stay, and ICU duration. There is no difference in aortic-related mortality and all-cause mortality between TEVAR reconstruction of LSA and hybrid surgery. However, TEVAR has significantly lower rates of mid-term adverse events and re-intervention compared to the hybrid group. The diameter of the proximal landing zone are risk factors for all-cause mortality.