Open Resection Research Articles

Laparoscopic versus open surgery for liver resection: a multicenter cohort study

The relative risk and benefits of Laparoscopic liver resection (LLR) are still controversial. This study aimed to evaluate perioperative and survival outcomes for three primary malignant liver tumors related outcomes following LLR. Data from three Homogeneous-High-Volume-Expert-Centers were collected. Multivariable logistic regression analysis was performed for the association between LLR, and major complications defined as Clavien-Dindo Classification grade ≥ II. Multivariable Cox proportional hazards regression was used to explore the impact of LLR on primary malignant liver tumor survival. Overall, 5886 patients underwent liver resection, of which 1991 underwent LLR. After adjusting for covariables, LLR had significantly lower rate of CDC grade ≥ II (OR = 0.56, 95% CI: 0.48–0.67, P < 0.001). Interaction analysis showed that LLR had significant association with sex, drinking status, history of abdominal surgery, and platelet count (all P < 0.05). The overall survival for each primary malignant liver tumor shown potential risk but without significantly different between LLR and OLR (all P > 0.05). LLR was associated with lower rate of major complications, especially in women, non-drinkers, those without a history of abdominal surgery, and those with normal platelet. For primary malignant liver tumors, the survival outcomes did not differ significantly between LLR and OLR.

Risk factors for wound dehiscence after surgery for epilepsy.

Wound dehiscence following craniotomy is a complication for which patients are subjected to additional procedures to achieve wound closure. During surgery for epilepsy, a craniotomy is performed at various sites to cure or palliate seizures in patients with intractable epilepsy. Collaborations between medicine and engineering have provided many surgical devices and materials for various stages of craniotomy, from skin incision to wound closure. The risk factors for wound dehiscence remain undetermined. Here, the authors attempt to identify risk factors associated with wound dehiscence after surgery for epilepsy. They retrospectively reviewed the clinical records and operative notes of consecutive patients with intractable epilepsy who had undergone craniotomy to allow resective or disconnective surgery between 2015 and 2023 in the Department of Neurosurgery, Hiroshima University Hospital, and had a minimum follow-up of 1 year. The authors conducted a multivariate logistic regression analysis to determine the risk factors for wound dehiscence. The study population comprised 174 patients who had undergone corpus callosotomy (70 patients), cortical resection (CR; 65 patients), or CR via intracranial video electroencephalography monitoring (IVEEG; 39 patients). Wound dehiscence occurred in 14 patients (8.0%). Univariate analysis showed that wound dehiscence was associated with CR via IVEEG (p = 0.0330), electrocautery scalpels (p = 0.0037), T-shaped skin incisions (p = 0.0216), dural closure (p = 0.0002), and longer operative duration (p = 0.0088). Multivariate logistic regression analysis revealed that skin incision using an electrocautery scalpel (p = 0.0462, OR 9.38, 95% CI 1.04-84.74) and dural closure using nonabsorbable artificial dura (p = 0.0078, OR 6.29, 95% CI 1.63-24.31) were independent risk factors for wound dehiscence. Surgical devices and materials contribute to wound dehiscence after epilepsy surgery. To avoid wound dehiscence, the use of an electrocautery scalpel is not recommended when performing skin incisions, nor is dural closure using a nonabsorbable artificial dura.

Initial Experience With Robotic Liver Resection in the United States.

This study's aim was to show the feasibility and safety of robotic liver resection (RLR) even without extensive experience in major laparoscopic liver resection (LLR). A single center, retrospective analysis was performed for consecutive liver resections for solid liver tumors from 2014 to 2022. The analysis included 226 liver resections, comprising 127 (56.2%) open surgeries, 28 (12.4%) LLR, and 71 (31.4%) RLR. The rate of RLR increased and that of LLR decreased over time. In a comparison between propensity score matching-selected open liver resection and RLR (41:41), RLR had significantly less blood loss (384 ± 413 vs 649 ± 646mL, P = .030) and shorter hospital stay (4.4 ± 3.0 vs 6.4 ± 3.7 days, P = .010), as well as comparable operative time (289 ± 123 vs 290 ± 132 mins, P = .954). A comparison between LLR and RLR showed comparable perioperative outcomes, even with more surgeries with higher difficulty score included in RLR (5.2 ± 2.7 vs 4.3 ± 2.5, P = .147). The analysis of the learning curve in RLR demonstrated that blood loss, conversion rate, and complication rate consistently improved over time, with the case number required to achieve the learning curve appearing to be 60 cases. The findings suggest that RLR is a feasible, safe, and acceptable platform for liver resection, and that the safe implementation and dissemination of RLR can be achieved without solid experience of LLR.

The Oncological Stress Test of Neoadjuvant Therapy: A Systematic Review in Outcomes of Neoadjuvant Therapy Compared to Upfront Resection Approach for Borderline Resectable Pancreatic Adenocarcinoma.

Pancreatic adenocarcinoma, increasingly diagnosed in the United States, has a disheartening initial resection rate of 15%. Neoadjuvant therapy, particularly FOLFIRINOX and gemcitabine-based regimens, is gaining favor for its potential to improve resectability rates and achieving microscopically negative margins (R0) in borderline resectable cases, marked by intricate arterial or venous involvement. Despite surgery being the sole curative approach, actual benefit of neoadjuvant therapy remains debatable. This study scrutinizes current literature on oncological outcomes post-resection of borderline resectable pancreatic cancer. A MEDLINE/PubMed search was conducted to systematically compare oncological outcomes of patients treated with either neoadjuvant therapy with intent of curative resection or an "upfront resection" approach. A total of 1293 studies were initially screened and 30 were included (n = 1714) in this analysis. All studies included data on outcomes of patients with borderline resectable pancreatic adenocarcinoma being treated with neoadjuvant therapy (n = 1387) or a resection-first approach (n = 356). Patients treated with neoadjuvant therapy underwent resection 52% of the time, achieving negative margins of 43% (n = 601). Approximately 77% of patients who received an upfront resection underwent a successful resection, with 39% achieving negative margins. Neoadjuvant therapy remains marginally efficacious in treatment of borderline resectable pancreatic adenocarcinoma, as patients undergo an operation and successful resection less often when treated with neoadjuvant therapy. Rates of curative resection are comparable, despite neoadjuvant therapy being a primary recommendation in borderline resectable cases and employed more often than upfront resection. Upfront resection may offer improved resection rates by intention-to-treat, which can provide more patients with paths to curative resection.

Comparison of Awake Craniotomy with Craniotomy Under General Anesthesia for Resection of Tumors in Eloquent Areas of Brain

Objective: To compare awake craniotomy with craniotomy under general anesthesia for early post-operative parameters in patients undergoing resection of tumors in eloquent areas of brain. Study Design: Quasi experimental study. Place and Duration of Study: Department of Anesthesia, Combined Military Hospital, Rawalpindi Pakistan Apr 2021 to May 2022. Methodology: All the patients who underwent resection surgeries for brain tumors in eloquent areas of brain were included in the study. They were divided into two Groups via lottery method. Group A underwent awake craniotomy while Group B underwent craniotomy under general anesthesia. Relevant intraoperative and early post-operative parameters were compared in both the Groups. Results: A total of 60 patients who underwent resection of eloquent area brain tumors in our hospital during the study period were included in the final analysis. Out of these 40(66.7%) underwent craniotomy under general anesthesia while 20(33.3%) underwent awake craniotomies. Mean age of the study participants was 45.61±7.889 years. Frontal lobe tumors were the most encountered brain tumors in our study participants. Patients who underwent awake craniotomy had statistically significantly lower KORNAFSKY score, lesser days of post-operative admission days and lesser neurological deficits (p-value &lt;0.005) as compared to those who underwent craniotomy under general anesthesia. Conclusion: Awake craniotomy emerged as superior option as compared to craniotomy under general anesthesia in terms of early post-operative parameters. Lower KORNAFSKY score, lesser days of post-operative admission days and lesser neurological deficits were seen in patients undergoing awake craniotomy.

"Mini Brain" Appearance in Spinal Metastasis From Type A Thymoma Detected by 18F-FDG PET/CT.

A 66-year-old man presented with persistent dull pain in the lower back for over 7 months. An expansile lytic lesion in the L4 vertebral body showed a characteristic "mini brain" appearance on MRI, which is highly suggestive of plasmacytoma. 18F-FDG PET/CT scan revealed increased FDG uptake in the L4 lesion, with an additional finding of a mass in the anterior mediastinum that showed mild FDG uptake. Lumbar surgery and complete resection of the anterior mediastinum tumor confirmed spinal metastatic type A thymoma, which was classified as p-T1aN0M1b, stage IVb. The patient's condition improved postsurgery and chemotherapy, with long-term follow-up necessary due to recurrence risk.

Comprehensive strategies for preoperative pulmonary risk evaluation and management.

Postoperative pulmonary complications (PPCs) significantly increase morbidity and mortality in surgical patients, particularly those with pulmonary conditions. The incidence of PPCs varies widely, influenced by surgery type, patient age, smoking status, and comorbidities like chronic obstructive pulmonary disease (COPD) and congestive heart failure. Preoperative pulmonary function tests and chest radiographs, while critical for lung resection surgery, should be selectively used based on individual risk factors. Effective risk stratification models, including ASA classification, Arozullah Respiratory Failure Index, Gupta Calculators, and ARISCAT model, aid in predicting PPCs. Key strategies to reduce PPCs involve preoperative optimization of pulmonary conditions, smoking cessation, and respiratory rehabilitation. In COPD and asthma patients, maintaining optimal disease control through inhaled therapies, systemic corticosteroids, and preoperative respiratory exercises is crucial. Anemia and hypoalbuminemia are notable predictors of PPCs, warranting careful management. The type and duration of anesthesia significantly impact PPC risk, with regional anesthesia preferred over general anesthesia when feasible. Comprehensive preoperative evaluation and tailored interventions are essential to improve surgical outcomes and reduce PPC incidence. Further study involving domestic patients is needed to refine national guidelines for managing patients at risk of PPCs.

Alginate/chitosan-based hemostatic microspheres loaded with doxorubicin liposomes for postoperative local drug delivery in solid tumor.

In clinical solid tumor treatment, intraoperative bleeding, compromised postoperative recovery, and increased non-specific toxicity from chemotherapy are always challenges. To address these limitations, we developed and well characterized novel alginate/chitosan-based hemostatic microspheres loaded with doxorubicin liposomes. The multifunctional microspheres exhibited optimal drug loading capacity and excellent drug encapsulation efficiency. Remarkably, this unique structural composition enhanced the hemostatic performance by improving their swelling and adhesion properties, surpassing those of commercial hemostatic microspheres CELOX® in both rat tail amputation and hepatic injury models. In a tumor recurrence model, SCs-lip microspheres, designed with a multi-release in situ drug delivery system, achieved sustained release of doxorubicin over an extended period, effectively reducing its toxic side effects while enhancing therapeutic efficacy. Biocompatibility experiments further validated the safety profile of this multifunctional materials. The development of this drug delivery system presents a promising opportunity to bridge the "treatment gap" between solid tumor resection surgery and chemotherapy, offering a potentially transformative approach for the application of anti-tumor drugs.

Awake surgery with mapping-based resection to treat focal epilepsy in eloquent brain areas.

Resective surgery is a potential therapeutic option for select patients with intractable focal epilepsy. However, the presence of ictal onset zones within or surrounding highly functional brain areas presents a surgical challenge, leading to poor seizure and functional outcomes. This report describes our experiences with awake mapping-tailored resection of epileptogenic areas involving eloquent cortices and evaluates their feasibility, tolerance, limitations, and significance. The study included patients who underwent surgery for drug-resistant focal epilepsy at our center under awake conditions. The surgical approach aimed to achieve maximum resection of preoperatively defined epileptogenic zones, considering the boundaries defined by surrounding functional areas. We collected data on preoperative evaluations, intraoperative tests and seizures, postoperative status epilepticus, and neurological functional outcomes. We included 22 patients, 10 of whom had non-lesional epilepsy. Language, motor function, and sensory function were at risk in 19, 9, and 4 patients, respectively. Resection was performed as planned in 14 (63.6%) patients, while modifications were necessary in 8 (36.4%) patients due to functional constraints. The mean follow-up duration was 29.8months. Sixteen (72.7%) patients achieved Engel class Ia outcomes, indicating seizure freedom, while none of the patients experienced clinically significant permanent postoperative neurological deficits. Resective surgery with intraoperative brain mapping under awake conditions was a valid treatment option for achieving a cure in cases of drug-resistant focal epilepsy, even in situations in which the condition is considered inoperable due to the risk of significant postoperative neurological deficits.

MTOR inhibitor in the treatment of TFE-positive advanced maligmnant PEComa of the uterus: a case report and literature review.

The pre- and intra-operative diagnoses of malignant uterine vascular perivascular epithelioid cell tumors (PEComas) can be challenging, for which the literature is limited. Some cases have been shown to have TSC gene mutations or rearrangements of the MiT factor family, resulting in variable responses to mTOR inhibitors. We report a case of a TFE-positive malignant PEComa of the uterus with pulmonary metastases that responded favorably to the mTOR inhibitor, everolimus. A 52-year-old female underwent a total hysterectomy 5 years ago for suspected sub-serosal or broad ligament fibroids. The intraoperative pathologic diagnosis was leiomyosarcoma of the uterus and the postoperative diagnosis was malignant PEComa of the uterus. The patient declined genetic testing and further treatment. In December 2020 the patient presented with a pelvic mass and underwent open abdominal mass resection and pelvic adhesiolysis. The pathologic findings confirmed recurrent malignant PEComa of the uterus. The pulmonary lesions gradually progressed during the follow-up period, so treatment with everolimus was initiated. Close follow-up evaluation for nearly 3 years showed disease remission without recurrence or progression. The patient described herein had a TFE-positive uterine malignant PEComa with lung metastasis and responded well to the mTOR inhibitor, everolimus. Close follow-up in the last 3 years showed remission without recurrence or progression.

Long-Term Outcomes of Minimally Invasive Endoscopic Versus Sternotomy Surgical Resection of Primary Cardiac Tumors.

Primary cardiac tumors are uncommon, often benign, but can be potentially life threatening. Minimally invasive endoscopic (ENDO) techniques have been shown to be a feasible alternative for tumor resection compared with conventional sternotomy (CS). This study compared the clinical and surgical outcomes of a small series of patients undergoing cardiac tumor resection operations. Between November 2009 and December 2022, 34 consecutive patients underwent cardiac tumor resection using either ENDO (n = 21) or CS (n = 13) techniques. We compared early perioperative outcomes, echocardiographic outcomes, and long-term clinical and tumor recurrence outcomes. Baseline characteristics were similar between groups; however, the ENDO group included younger patients (56 ± 16 vs 62 ± 17 years) and more female patients (83% vs 53%). The tumor was located in the left atrium (n = 19, 56%), right atrium (n = 5, 15%), or either ventricle (n = 4, 12%). In-hospital mortality and stroke frequency were similar for both groups (n = 0). There was no significant difference in cardiopulmonary bypass or cross-clamp times, respiratory or renal failure, or intensive care unit or hospital lengths of stay. At follow-up (ENDO, 42 [2 to 131] months vs CS, 54 [1 to 156] months), there were no deaths in the ENDO group and 2 patients died in the CS group (P = 0.21). No patients in either group experienced tumor recurrence. In selected patients, both ENDO and CS approaches to primary cardiac tumor resection were safe, effective, durable, and associated with similarly good early and late results.

An international multicentre randomised controlled trial of en bloc resection of bladder tumour vs conventional transurethral resection of bladder tumour: first results of the en bloc resection of urothelium carcinoma of the bladder (EBRUC) II trial.

To determine the safety and oncological advantages of en bloc resection of bladder tumour (ERBT) vs conventional transurethral resection of bladder tumour (cTURBT) in terms of resection quality, staging quality, and safety. We conducted a single-blinded randomised controlled trial at seven European hospitals with the following inclusion criteria: first diagnosis of non-muscle-invasive bladder cancer, no singular carcinoma in situ, and tumour size >4.3 mm. Patients were randomised intraoperatively in a 1:1 ratio to either the ERBT or cTURBT group. Outcome analysis was performed using the chi-square test, t-test, and multivariate regression analysis. A total of 97 patients were randomised into the study (cTURBT = 40, ERBT = 57). A switch to cTURBT was necessary in two patients (3.5%) and 11.5% of the screened patients were preoperatively excluded for ERBT. There was no difference in the specimen presence of detrusor muscle with 73.7% in cTURBT and 67.3% in ERBT specimens (P = 0.69). There were no significant differences in mean operative time (ERBT 27.6 vs cTURBT 25.4 min, P = 0.450) or mean resection time (ERBT 16.3 vs cTURBT 15.5 min, P = 0.732). Overall the complication rate did not differ significantly (ERBT 18.2% vs cTURBT 7.5%, P = 0.142). Bladder perforations occurred significantly more often in the ERBT group (ERBT seven vs cTURBT none, P = 0.020). R0 status was reported more often after ERBT, whilst a second resection was significantly less frequent after ERBT (P = 0.018). Recurrence rates were comparable for both techniques after 6 months of follow-up. The feasibility of ERBT is higher than previously reported. Whereas other perioperative and safety parameters are comparable to cTURBT, bladder perforations occurred significantly more often in the ERBT group and raised safety concerns. This is why this trial was terminated.

Acute hyperlipidemia has transient effects on large-scale bone regeneration in male mice

Excessive dietary fat intake increases plasma lipid levels and has been associated with reduced bone mineral density (BMD) and increased risk of osteoporotic fracture, especially in older postmenopausal women. The objective of this study was to investigate whether there are sex-related differences in lipid metabolism that could have an impact on large-scale bone regeneration. Because ribs provide a unique exception as the only bones capable of completely regenerating large-scale defects, we used a rib resection mouse model in which human features are recapitulated. After 10 days of exposure to a low-fat diet or high-fat diet (HFD), we performed large-scale rib resection surgeries on male and female mice (6–7 weeks old) with deletion of the low-density lipoprotein (LDL) receptor (Ldlr−/−) and age- and sex-matched wild-type (WT) mice were used as controls. Plasma analysis showed that short-term exposure to HFD significantly increases total cholesterol, LDL cholesterol, and triglycerides levels in Ldlr−/− mice but not in WT, with no differences between males and females. However, under HFD, callus bone volume was significantly reduced exclusively in male Ldlr−/− mice when compared to WT, although these differences were no longer apparent by 21 days after resection. Regardless of diet or genotype, BMD of regenerated ribs did not differ significantly between groups, although male mice typically had lower average BMD values. Together, these results suggest that short-term hyperlipidemia has transient effects on large-scale bone regeneration exclusively in male mice.

Associations Between Testing and Treatment Pathways in a Case of Pediatric Nonlesional Epilepsy: A Census Survey of NAEC Center Directors.

Epilepsy surgery is vital in managing of children with drug-resistant epilepsy. Noninvasive and invasive testing modalities allow for evaluation and treatment of children with drug-resistant epilepsy. Evidence-based algorithms for this process do not exist. This study examines expert response to a vignette of pediatric nonlesional epilepsy to assess associations in evaluation and treatment choices. We analyzed annual report data and an epilepsy practice survey reported in 2020 from 135 pediatric epilepsy center directors in the United States. Characteristics of centers along with noninvasive and invasive testing and surgical treatment strategies were collected. Multivariable logistic regression modeling was performed. The response rate was 100% with 135 responses included in the analyses. Most used noninvasive testing modalities included Neuropsychology evaluation (90%), interictal brain fluorodeoxyglucose-positron emission tomography (85%), and functional magnetic resonance imaging (MRI) (72%) with nearly half obtaining genetic testing. Choosing functional MRI was associated with stereo electroencephalography (EEG) (P = .025) and selecting Wada with subdural grid/strips (P = .038). Directors from pediatric-only centers were more likely to choose stereo EEG as opposed to combined centers (P = .042). Laser interstitial thermal therapy was almost 7 times as likely to be chosen as a treatment modality compared with open resection in dedicated pediatric centers (OR 6.96, P = .002). In a vignette of nonlesional childhood drug-resistant epilepsy, epilepsy center directors' patterns of noninvasive testing, invasive testing, and treatment were examined. Management choices were associated with pediatric versus combined pediatric/adult center characteristics. Expert opinions demonstrated equipoise in evaluation and management of children with drug-resistant epilepsy and the need for evidence-based management strategies.

Postoperative Morbidity and Factors Predicting the Development of Lymphoceles Following Lateral Pelvic Node Dissection for Rectal Cancer: A Cohort Study.

Lateral pelvic node dissection (LPLND) is indicated inthe surgical management of clinically significant pelvic lymphadenopathy associated with rectal malignancies. However, procedure-related morbidity, including the incidence and predisposing factors for lymphoceles arising in this setting have not been adequately evaluated. This retrospective single-institution study included 183 patients with nonmetastatic, lateral node-positive rectal cancer undergoing total mesorectal excision with LPLND between June 2014 and May 2023 to determine the incidence and severity of postoperative complications using the Clavien-Dindo system, with logistic regression performed to model a relationship between lymphocele-development and potentially-predictive variables. In this cohort, mean age was 45.3 ± 12.81 years, 62.8% were male, and 27.9% had body mass index ≥ 25kg/m2. Median tumor-distance from the verge was 3.0 (interquartile range [IQR] 1.0-5.0)cm. Following radiotherapy in 86.9%, all patients underwent surgery: 30.1% had open resection and 26.2% had bilateral LPLND. Median nodal-yield was 6 (IQR 4-8) per side. Postoperatively, 45.3% developed complications, with 18% consideredclinically significant. Lymphoceles, detected in 21.3%, comprised the single-most common sequelae following LPLND, 46.2%arising within 30 days of surgery and 33.3% requiring intervention. On multivariate analyses, obesity (hazard ratio [HR] 2.496; 95% confidence interval [CI] 1.094-5.695), receipt of preoperative radiation (HR 10.026; 95% CI 1.225-82.027), open surgical approach (HR 2.779; 95% CI 1.202-6.425), and number of harvested nodes (HR 1.105; 95% CI 1.026-1.190) were significantly associated with lymphocele-development. Pelvic lymphoceles and its attendant complications represent the most commonly encountered morbidity following LPLND for rectal cancer, with obesity, neoadjuvant radiotherapy, open surgery, and higher nodal-yield predisposing to their development.

Experiences in robotic colorectal surgery: comprehensive insights from a multi-center analysis using the Senhance Robotic System.

Robotic-assisted surgery has revolutionised minimally invasive approaches, particularly in colorectal surgery. While many single-center studies on colorectal surgeries exist in present literature, including experiences with Senhance® Robotic Systems, comprehensive multi-center studies are lacking. This study, conducted through the TransEnterix European Patient Registry ("TRUST"), aims to assess the safety and feasibility in this context. The present study explored procedural times, complications, robotic malfunction and limitations, adverse events and pain management outcomes for colorectal procedures, including sigmoid resection, right hemicolectomy and rectal surgery collected in two European centers. Data from 355 colorectal surgeries showed that the median duration of surgery was 147.2min (IQR: 124.3-183.0), the docking time was reported with a median of 3.4min (IQR: 2.0-5.4) and the console time was found at a mean of 84.4min (SD: 33.6). Despite minimal blood loss, pain scores, and robotic malfunction, 2.9% of the cases (10 instances) required conversions to either an open or laparoscopic approach. Further, most robotic limitations were attributed to limited motion (18.9%, 67 cases) and collisions (11.5%, 41 cases). Adverse events (24 cases, 6.8%) were effectively managed, with 23 instances judged completely unrelated to the robotic system. This study underscores the positive outcomes and safety profile of Senhance® Robotic Systems in colorectal surgery, contributing valuable insights for future research and clinical practice.

Preoperative Epidural Infusion for Blood Pressure Control in Phaeochromocytoma

The 2004 World Health Organization (WHO) classification of endocrine tumours defines phaeochromocytoma as a catecholamine-producing intra-adrenal tumour arising from the chromaffin cells. The most important functional characteristics of the adrenal and extra-adrenal sympathetic tissue derived tumours is the production of various types of catecholamines and the related clinical attributes [1]. Preoperative blood pressure control in phaeochromocytoma is an uphill task using multiple medications leading to post operative hypotension. It is well known that complete prevention of perioperative hypertension and tachycardia cannot be achieved by any dose or combination of drugs. Epidural anesthesia is often used for pain control in open resection of these tumours; one of its side effects is hypotension [2]. We describe here a case of phaeochromocytoma in whom perioperative blood pressure control was achieved with the help of epidural drugs instead of systemic antihypertensive medications.

Safety and risk analysis of total resection surgery for thoracic and lumbar spinal tumors: a decadal analysis of 103 cases

Study designRetrospective cohort study.PurposeTo explore the complications and risk factors for total resection (TR) of primary thoracic and lumbar spinal tumors over the past decade at our institution.MethodsPatients meeting inclusion criteria (primary spinal tumors, thoracic or lumbar location, TR at our center) were included. Demographic characteristics, surgical data, perioperative complications and management results were reviewed. Patients were stratified by tumor site, the number of excised segments, and recurrence status to elucidate distinctive characteristics.ResultsThe cohort comprised 103 patients, with a mean age of 35.8 years. On average, 1.83 vertebral segments were resected per patient. Perioperative complications were substantial, totaling 166 events, with 71 classified as major and 95 as minor, yielding an average of 1.61 complications per patient. No perioperative deaths occurred, but 79 patients (76.7%) experienced at least one complication. Multiple vertebral sections correlated with a higher complication rate (P = 0.031), and lumbar surgeries exhibited elevated risks of large vascular injury (P = 0.001), neurological deterioration, and cerebrospinal fluid leakage compared to thoracic cases. Conversely, thoracic spinal procedures showed a higher rate of pleural effusion (P = 0.004). Binary logistics stepwise regression identified multi-segmental resection as the independent risk factor for major perioperative complications.ConclusionsTR of primary spinal tumors is associated with a high perioperative complication rate, although most events have a favorable prognosis. Complication characteristics vary based on the surgical site, number of excised segments, and surgical history. A nuanced preoperative evaluating approach considering patient age, surgical segments, and extent of resection is crucial.

Vaginal Synechiae in a Pregnant Woman with Past Surgery of Low Septum Resection: A Case Report

Introduction: Transverse vaginal septum is a rare mullerian anomaly. Patients with a complete transverse vaginal septum are diagnosed during menarche with symptoms of abdominal pain and amenorrhea. Here, we present a patient who underwent septal resection during puberty and was referred in pregnancy due to vaginal synechiae. Case presentation: The patient was a 40-year-old primigravid referred to the maternity department at 39 weeks of gestational age with labor pain and inability to perform a vaginal examination. She had a past surgical history of low vaginal septum at 13 years old. The vagina was completely obstructed. A thorough resection of the synechiae was performed along with a cesarean section to create a drainage path. Conclusion: It is important to consider a pregnant woman's history of Müllerian abnormalities. In these patients, due to the low frequency of intercourse and the conditions of progesterone dominance, there is a possibility of re-stenosis and the imposition of cesarean section. Paying attention to this possible complication and preventing it by using a dilator can be helpful.

Benefits of laparoscopic liver resection for liver tumors in obese patients: a meta-analysis

ObjectiveThe superiority of laparoscopic liver resection (LLR) and open liver resection (OLR) in obese patients remains controversial. The study aims to assess the available literature and compare the perioperative outcomes of LLR and OLR for liver tumors in obese patients.MethodsWe searched PubMed, Cochrane Library, Embase, and Web of Science databases for studies comparing LLR and OLR. Odds ratios (ORs) and mean differences (MDs) with 95% confidence intervals (CIs) were calculated.ResultsNine studies were included, with a total of 1116 patients (LLR group: 482 patients; OLR group: 634 patients). Compared with OLR, LLR has lower overall morbidity (OR 0.47, 95% CI 0.34, 0.64), major complications (OR 0.45, 95% CI 0.25, 0.82), surgical site infection (OR 0.18, 95% CI 0.07, 0.48), bile leak (OR 0.45, 95% CI 0.22, 0.95), less blood loss (MD, -329.12 mL; 95% CI, -623.35, -34.88), and shorter length of stay (MD, -5.20 days; 95% CI, -7.43, -2.97). There were no significant differences in mortality, operation time, liver failure, and blood transfusion between the two groups.ConclusionsLLR for obese patients is safe and feasible. Compared to OLR, it offers better short-term outcomes. Further randomized controlled trials to verify the potential advantages of LLR over OLR are warranted.