Search Results (399)

Background/Objectives: Biliary complications are common after liver transplantation (LT), with bile leaks representing a major cause of morbidity. Conventional imaging modalities such as ultrasound, CT, MRCP, and endoscopic techniques may fail to localize peripheral or complex leaks. This study aimed to evaluate the feasibility of [⁶⁸Ga]Ga-TEoS-DAZA-PET/CT for non-invasive localization of bile leaks after LT. Methods: Five male patients (mean age 53.2 years) with suspected bile leakage and inconclusive prior imaging underwent [⁶⁸Ga]Ga-TEoS-DAZA-PET/CT. The tracer was synthesized under GMP conditions and administered at a mean activity of 204 ± 42 MBq. Dynamic PET/CT imaging was performed for 60 min, and findings were classified according to the Nagano classification. Results: Bile leaks were detected and anatomically localized in all five patients. Sites included the liver resection surface, central bile ducts, bilioenteric anastomosis, and biliary drainage exit. PET/CT findings guided revision surgery in one case and endoscopic treatment in three, while one patient improved without intervention. No adverse effects occurred. Conclusions: [⁶⁸Ga]Ga-TEoS-DAZA-PET/CT is a feasible and safe imaging technique for the anatomical localization of bile leaks following LT. Its antegrade visualization of biliary flow, high spatial and temporal resolution, and lack of contraindications make it a promising complementary modality when conventional imaging is inconclusive or not feasible. Larger studies are warranted to validate its diagnostic value and clinical utility in postoperative and post-traumatic biliary injuries. Full article

Background: Neoadjuvant therapy (NT) is increasingly utilized for patients with localized pancreatic ductal adenocarcinoma (PDAC). Toxicities during NT are common, often leading to the inability to undergo surgical resection, yet risk factors for attrition are poorly understood. Therefore, we sought to evaluate the impact of baseline frailty on outcomes of patients with PDAC undergoing NT. Methods: All patients with potentially resectable (PR) or borderline resectable (BR) PDAC who initiated neoadjuvant chemotherapy and/or chemoradiation between 2019 and 2025 at a single institution were assessed retrospectively in an intention-to-treat fashion. The association between frailty as defined by the modified 11-item frailty index (mFI-11) and receipt of surgical resection as well as other secondary endpoints was assessed. Comprehensive functional frailty assessments were prospectively obtained in a subset of patients. Results: Among 252 eligible patients, the median age was 67 years, 56.7% were male, 90.9% were White, 49.6% had PR disease, and 5.2% were frail according to mFI-11. After a median 3.6 months of NT, 62.7% underwent surgical resection. Frail individuals had worse performance status and increased comorbidities compared with non-frail patients. On multivariable analysis, male sex, BR anatomic staging, initial use of Gemcitabine + nab-paclitaxel, and frailty (OR 0.09; 95%CI 0.02–0.44) were associated with reduced odds of undergoing resection. Along with increased baseline CA 19-9 levels, frailty was independently associated with worse overall survival (HR 3.00; 95%CI 1.46–6.20). Among 39 patients who underwent formal functional frailty assessment, only abnormal posture was associated with lower odds of surgical resection following NT (OR, 0.22; 95% CI, 0.05–0.92), and no aspects of functional frailty were associated with overall survival. Conclusions: Among patients with localized PDAC initiating NT, frailty as assessed by mFI-11 was associated with reduced odds of undergoing surgical resection and worse overall survival. Future research should focus on efforts to improve functional status during NT. Full article

Background: Recent trials, including JCOG0802/WJOG4607L and CALGB140503, have confirmed the oncological adequacy of segmentectomy for early-stage non-small-cell lung cancer (NSCLC). This shift emphasizes the preservation of pulmonary function and minimal invasiveness. Robot-assisted thoracic surgery (RATS) offers enhanced anatomical precision and potentially improves segmentectomy outcomes. Methods: We reviewed the current evidence comparing sublobar resection and lobectomy for early-stage NSCLC, focusing on RATS segmentectomy. Clinical trials, perioperative and long-term outcomes, technical innovations, and patient selection criteria were analyzed. Comparative data among RATS, video-assisted thoracoscopic surgery (VATS), and open approaches were synthesized, including the emerging roles of AI and 3D imaging. Results: Segmentectomy yields survival outcomes equivalent or superior to lobectomy for stage IA peripheral NSCLC ≤2 cm, with better pulmonary function despite higher locoregional recurrence. RATS enhances visualization, dexterity, and ergonomics, thereby enabling precise dissection and lymph node assessment. Compared to VATS and open surgery, RATS shows lower conversion rates, reduced pain, and comparable oncological control. Innovations, such as indocyanine green imaging, 3D modeling, and AI-guided navigation, support margin accuracy and personalized care. Conclusions: Segmentectomy has redefined the surgical standards for early-stage NSCLC. RATS maximizes the minimally invasive benefits by combining oncological safety and functional preservation. Its technical precision facilitates complex resections and integration with digital planning tools to advance personalized thoracic surgery. RATS represents the next evolution of minimally invasive thoracic surgery, redefining the balance between oncological safety and functional preservation in early-stage NSCLC. Full article

Background/Objectives: Minimally invasive thoracic surgery has evolved rapidly, with uniportal video-assisted thoracoscopic surgery (U-VATS) and robotic-assisted thoracic surgery (RATS). Biportal-RATS (Bi-RATS) has emerged as a hybrid technique, combining robotics advantages with the reduced invasiveness of U-VATS. The aim of this study was to evaluate the safety, perioperative outcomes, lymphadenectomy, and postoperative quality of life (QoL) of Bi-RATS compared with U-VATS for lung resections. Methods: This single-center, observational cohort study included 130 consecutive patients undergoing anatomical lung resection between December 2021 and December 2024. Baseline and perioperative characteristics, including complications, chest drain duration, hospital stay, and lymph node yield, were analyzed. Health-related QoL was assessed preoperatively and 6 months postoperatively using the EQ-5D-5L questionnaire and EQ-VAS. Propensity score matching (PSM) at a 1:1 ratio was performed to minimize selection bias, obtaining 32 patients per group. Results: After PSM, the baseline characteristics were comparable between groups. Operative time was longer with Bi-RATS (221.3 ± 84.5 vs. 119.3 ± 53.4 min, p < 0.001). No significant differences were observed in postoperative complications, drain duration, or hospital stay. Bi-RATS seemed to be associated with a higher lymph node yield, particularly in segmentectomies. At 6 months, the overall EQ-VAS was comparable between techniques (78.9 U-VATS vs. 78.1 Bi-RATS; p = 0.832), while among the EQ-5D-5L dimensions, only mobility favored Bi-RATS (p = 0.045). Conclusions: Bi-RATS appears safe and effective, with perioperative outcomes and overall EQ-VAS comparable to those of U-VATS 6 months after surgery. These findings suggest that Bi-RATS may represent a valuable evolution of minimally invasive thoracic surgery. Full article

Background and Clinical Significance: Adults suffering from cerebellar metastases are often at high risk for rapid deterioration of their neurological status because the posterior fossa has limited compliance and the location of these metastases are close to the brain stem and important cerebrospinal fluid (CSF) pathways. In this paper, we present a longitudinal, patient-centered report on the history of an elderly individual who suffered from cognitive comorbidities and experienced a sudden loss of function in her cerebellum. Our goal in reporting this case is to provide a comparison between the patient’s pre-operative and post-operative neurological examinations; the imaging studies she had before and after surgery; the surgical techniques utilized during her operation; and the outcome of her post-operative course in a way that will be helpful to other patients who have experienced a similar situation. Case Presentation: We report the case of an 80-year-old woman who initially presented with progressive ipsilateral limb-trunk ataxia, impaired smooth pursuit eye movement, and rebound nystagmus, but preserved pyramidal and sensory functions. Her quantitative bedside assessments included some of the components of the Scale for the Assessment and Rating of Ataxia (SARA), and a National Institute of Health Stroke Scale (NIHSS) score of 3. These findings indicated dysfunction of the left neocerebellar hemisphere and possible dentate nucleus involvement. The patient’s magnetic resonance imaging (MRI) results demonstrated an expansive mass with surrounding vasogenic edema and marked compression and narrowing of the exits of the fourth ventricle which placed the patient’s CSF pathways at significant risk of occlusion, while the aqueduct and inlets were patent. She then underwent a left lateral suboccipital craniectomy with controlled arachnoidal CSF release, preservation of venous drainage routes, subpial corticotomy oriented along the lines of the folia, stepwise internal debulking, and careful protection of the cerebellar peduncles and dentate nucleus. Dural reconstruction utilized a watertight pericranial graft to restore the cisternal compartments. Her post-operative intensive care unit (ICU) management emphasized optimal venous outflow, normoventilation, and early mobilization. Histopathology confirmed the presence of metastatic carcinoma, and staging suggested that the most likely source of the primary tumor was the lungs. Immediately post-operation, computed tomography (CT) imaging revealed a smooth resection cavity with open foramina of Magendie and Luschka, intact contours of the brain stem, and no evidence of bleeding or hydrocephalus. The patient’s neurological deficits, including dysmetria, scanning dysarthria, and ataxic gait, improved gradually during the first 48 h post-operatively. Upon discharge, the patient demonstrated an improvement in her limb-kinetic subscore on the International Cooperative Ataxia Rating Scale (ICARS) and demonstrated independent ambulation. At two weeks post-operation, CT imaging revealed decreasing edema and stable cavity size, and the patient’s modified Rankin scale had improved from 3 upon admission to 1. There were no episodes of CSF leakage, wound complications, or new cranial nerve deficits. A transient post-operative psychotic episode that was likely secondary to her underlying Alzheimer’s disease was managed successfully with short-course pharmacotherapy. Conclusions: The current case study demonstrates the value of anatomy-based microsurgical planning, preservation of venous and CSF pathways, and targeted peri-operative management to facilitate rapid recovery of function in older adults who suffer from cerebellar metastasis and cognitive comorbidities. The case also demonstrates the importance of early multidisciplinary collaboration to allow for timely initiation of both adjuvant stereotactic radiosurgery and molecularly informed systemic therapy. Full article

Background: The sphenoid sinus is essential for transsphenoidal surgical accesses to the sellar and parasellar regions because of its anatomic proximity to vital vascular and neurologic structures such as the internal carotid artery, optic nerve, and cavernous sinus. The high degree of morphological variability of the sphenoid sinus has a significant impact on surgical technique and the risk of intraoperative complications. Detailed knowledge of individual anatomy is therefore crucial for the safety and efficacy of transsphenoidal approaches. Objectives: This review aims to conduct a systematic analysis of the current scientific literature on anatomical variations in the sphenoid sinus and their clinical relevance in surgical interventions to the skull base. Special attention is paid to the influence of morphological features on surgical strategies to pathological processes in this area and postoperative outcomes. Materials and Methods: A systematic review of the literature was conducted according to PRISMA 2020 guidelines. The PubMed, Scopus, Web of Science, and Google Scholar databases were searched for the period March 2010 to March 2025. Keywords such as “sphenoid sinus”, “anatomical variations”, “transsphenoidal surgery” and “skull base” were used. Original studies, systematic reviews, and meta-analyses focused on the anatomy, pneumatization, and surgical significance of sphenoid sinus variations are included. Quality and relevance criteria for published material were considered in the selection of articles. Results: The most commonly identified anatomic variations included sellar and lateral pneumaticity, the presence of Onodi cells, multiple and deviated septa, and dehiscence of the posterior wall of the sphenoid sinus and prolapse into its cavity of the internal carotid artery. These variations are associated with an increased risk of intraoperative vascular injury, visual deficit, and postoperative liquorrhea. Accurate preoperative assessment by high-resolution computed axial tomography and magnetic resonance imaging, as well as the use of intraoperative neuronavigation, are critical to reduce surgical risk. Conclusions: Anatomic variations in the sphenoid sinus are an essential factor to consider when planning and performing transsphenoidal surgical accesses. An individualized approach based on detailed diagnostic imaging analysis and neuronavigation technologies contributes to a higher safety of the performed surgical interventions, a better radicality of tumor resection and more favorable postoperative outcomes. Full article

Background: Down syndrome (DS) is commonly associated with complex respiratory phenotypes due to anatomical, immunological, and vascular factors. Pulmonary sequestration (PS) is a rare congenital malformation of non-functioning lung tissue with anomalous systemic arterial supply, occasionally reported in syndromic individuals. Case presentation: We report the case of a female infant with DS who developed acute respiratory distress secondary to respiratory syncytial virus infection. Chest imaging revealed an intralobar pulmonary pseudosequestration in the right lower lobe, supplied by the celiac trunk and draining into the pulmonary veins, with a communication to the bronchial tree. The patient required pediatric intensive care support and nutritional rehabilitation. Surgical resection was deferred until adequate weight optimization could be achieved. Discussion: This is, to our knowledge, the first description of intralobar pulmonary pseudosequestration in a patient with DS. The association suggests possible overlapping developmental mechanisms involving abnormal angiogenesis and emphasizes the importance of considering congenital pulmonary malformations in DS patients presenting with recurrent or severe respiratory symptoms. Conclusions: Early recognition and tailored management may improve clinical outcomes in this vulnerable population. Full article

Background: The management of complex hepato-pancreato-biliary (HPB) pathologies demands exceptional surgical precision. Traditional two-dimensional imaging has limitations in depicting intricate anatomical relationships, potentially complicating preoperative planning. This review explores the synergistic application of three-dimensional (3D) reconstruction and artificial intelligence (AI) to support surgical decision-making in complex HPB cases. Methods: This narrative review synthesized the existing literature on the applications, benefits, limitations, and implementation challenges of 3D reconstruction and AI technologies in HPB surgery. Results: The literature suggests that 3D reconstruction provides patient-specific, interactive models that significantly improve surgeons’ understanding of tumor resectability and vascular anatomy, contributing to reduced operative time and blood loss. Building upon this, AI algorithms can automate image segmentation for 3D modeling, enhance diagnostic accuracy, and offer predictive analytics for postoperative complications, such as liver failure. By analyzing large datasets, AI can identify subtle risk factors to guide clinical decision-making. Conclusions: The convergence of 3D visualization and AI-driven analytics is contributing to an emerging paradigm shift in HPB surgery. This combination may foster a more personalized, precise, and data-informed surgical approach, particularly in anatomically complex or high-risk cases. However, current evidence is heterogeneous and largely observational, underscoring the need for prospective multicenter validation before routine implementation. Full article

Background: Hepatic resection requires precise knowledge of vascular anatomy and remnant liver volume to guarantee both safety and efficacy. Three-dimensional (3D) models, either virtual or printed, have been proposed as tools to optimize surgical planning, education, and intraoperative navigation. Material and Methods: This retrospective observational study evaluated the impact of 3D model utilization (virtual and printed), in 89 patients who underwent elective hepatectomy at Infanta Elena University Hospital (Valdemoro, Madrid, Spain) between May 2018 and May 2023. The implementation of 3D modeling began to be routinely implemented as of November 2020. Patients were divided into two groups: those without 3D modeling (n = 40) and those with 3D modeling (n = 49). Results: Baseline characteristics were comparable between groups. Intraoperative blood loss was significantly lower in the 3D model group (median 175 mL vs. 262.5 mL; p < 0.001), with no statistically significant differences in operative time, complication rate (Clavien–Dindo classification), length of hospital stay, or in-hospital mortality. Multivariable analysis identified dyslipidemia, postoperative sodium delta, and postoperative increase in direct bilirubin as independent risk factors for complications, whereas albumin demonstrated a protective effect. Conclusions: Three-dimensional modeling improves anatomic orientation and reduces intraoperative blood loss, although it does not significantly modify classic perioperative outcomes. Its principal value appears to reside in preoperative planning and technical safety rather than direct clinical impact. Full article

Prostatic artery embolization (PAE) has emerged as a minimally invasive treatment for benign prostatic obstruction (BPO), offering clinically meaningful symptom improvement with a favorable perioperative safety and sexual function profile. This narrative review synthesizes the current evidence on PAE relative to transurethral resection of the prostate (TURP) and holmium laser enucleation (HoLEP), and other minimally invasive surgical treatments (MISTs). PAE generally offers a more favorable perioperative safety profile and shorter recovery time, at the cost of higher reintervention rates. PAE improves lower urinary tract symptoms, quality of life, and urinary flow; however, the magnitude of improvement is generally smaller than that observed in comparative studies with TURP and HoLEP. At the same time, PAE is consistently associated with fewer perioperative complications, shorter recovery time, and a significantly higher preservation of ejaculation function. Reintervention rates after PAE are significantly higher than those after TURP, reaching approximately one in five patients at 2 years and nearly half at 5 years in long-term randomized follow-up, suggesting limited long-term durability compared with resective surgery. This review summarizes current patient selection criteria, anatomic and technical considerations, embolization material choices, and clinical outcomes, and also presents comparative data with TURP, HoLEP, and GreenLight photoselective vaporization. Emerging technologies, including imaging guidance and AI-assisted planning, may further optimize patient selection and procedural consistency, but longer-term comparative trials and standardized protocols are needed. Overall, PAE offers an option for carefully selected patients who prioritize functional preservation or are at high surgical risk, with the added disadvantage of lower long-term durability compared to standard surgical approaches. Full article

This pilot study evaluated the feasibility and preliminary outcomes of computer-guided intraosseous anesthesia for oral surgery and dental implantology. Background/Objectives: The inferior alveolar nerve block (IANB) is widely used for dental anesthesia; however, issues such as anatomical variation and inflammation can hinder effective pain control. Alternatives have been studied primarily in irreversible pulpitis, with limited data available for other procedures. Methods: In a retrospective analysis, data from 85 patients who underwent implantation, root resection, or osteotomy using QuickSleeper^® intraosseous anesthesia (IO), infiltration (INF), or IANB were assessed. Results: IO, IANB, and INF produced similar pain levels during administration, procedure, and recovery; blood pressure and heart rate were comparable. IO and INF led to less lip numbness after 15 min and required less anesthetic. IO had a significantly shorter latency than IANB, allowing earlier surgery. Conclusions: Computer-guided IO is a viable alternative to IANB for implantation, root resection, and osteotomy, offering equal pain control, shorter latency, earlier surgery, and reduced injection volume. Within the limitations of this pilot study, the findings should be considered preliminary and require confirmation in larger prospective studies. Given the exploratory pilot design, no formal sample size calculation was performed; the sample size was defined by feasibility considerations. Full article

Background: Giant sacral schwannomas present a significant surgical challenge, often requiring extensive resections that compromise neurological function and sacropelvic biomechanics. Conventional approaches frequently necessitate sacral bone sacrifice, resulting in the deafferentation of key pelvic stabilizers and subsequent long-term functional deficits. This study introduces the novel single-posterior “Sacral Frame Technique,” designed to preserve the lateral sacral bone margin and optimize functional reconstruction. Methods: We describe the surgical technique and report on a case of a 55-year-old female with a giant sacral schwannoma extending into the spinal canal and presacral space. The resection was performed via a combined trans-sacral and extrasacral approach, employing an intralesional piecemeal strategy to maintain the lateral sacral bone margin. The gluteus maximus muscles, along with the sacrotuberous and sacrospinous ligaments, were meticulously reattached to their natural insertion sites on the preserved bone. Clinical and radiological outcomes were evaluated at six months post-operatively. Results: Complete tumor resection was achieved without post-operative neurological deficits or sphincter dysfunction. The patient achieved early mobilization, returned to pre-operative activity levels, and showed no evidence of sacropelvic instability at the six-month follow-up. Post-operative imaging confirmed complete tumor clearance and the structural integrity of the preserved sacral bone margin. Conclusions: The “Sacral Frame Technique” offers a potential strategy for the safe and effective resection of giant sacral schwannomas. By prioritizing the preservation of the lateral sacral bone margin, the technique facilitates the anatomical reattachment of pelvic stabilizers, potentially mitigating long-term biomechanical deficits. Further studies with larger cohorts are warranted to fully validate these findings and establish the broader applicability of this bone-preserving approach. Full article

Background/Objectives: Postoperative pneumonia (PP) is a significant complication following thoracic surgery, increasing morbidity, mortality, and hospital length of stay. Identifying risk factors is crucial for optimizing perioperative management. This study analyses predictors for PP in patients undergoing anatomical lung resections in a single center setting. Methods: A prospective cohort study was conducted using data from the German Thoracic Registry (GTR). Patients who underwent anatomical lung resection were included in the study, while non-anatomical resections and cases with missing data were excluded. The primary outcome measure was the incidence of PP, which was analyzed using chi-square tests and Fisher’s exact test. Results: PP was observed in 15.2% of the 381 patients. Significant preoperative predictors included American Society of Anesthesiologists (ASA) classification ≥ 3 (p = 0.021), C-reactive protein (CRP) ≥ 20 mg/L (p = 0.004), white blood cell count (WBC) ≥ 15,000/µL (p = 0.003) and forced expiratory volume in 1 s (FEV1) < 50% (p = 0.004). Intraoperative risk factors included thoracotomy (THT) (p = 0.001) and duration of operation > 180 min (p = 0.002). Postoperative predictors included Intensive Care Unit (ICU) admission (p < 0.001) and mechanical ventilation > 24 h (p < 0.001). PP was associated with a higher perioperative mortality rate (10.3% vs. 1.2%, p = 0.01) and prolonged hospital stay. Conclusions: A number of risk factors for the development of PP have been identified, which may help to reduce the incidence of the condition. For further validation, multicenter studies are required. Full article

Background and Clinical Significanc: Congenital duodenal diaphragm (CDD) is a rare congenital condition causing partial or complete obstruction of the duodenum, most frequently located in the second part of the duodenum. It is a rare but important cause of intestinal obstruction in infants and young children. Clinically, it often presents with persistent vomiting and failure to thrive. Diagnosis can be made through abdominal X-ray showing the characteristic “double bubble” sign, upper gastrointestinal (GI) series, or gastroscopy. Case Presentation: A 17-month-old female infant with known psychomotor retardation was admitted for evaluation of inadequate weight gain and intermittent postprandial vomiting, both present since birth. Laboratory investigations, including metabolic and electrolyte panels, were within normal limits. Given the persistent clinical symptoms, an upper gastrointestinal series was performed to assess for possible anatomical abnormalities. Imaging revealed a significant delay in the passage of contrast into the second portion of the duodenum, with marked prestenotic dilatation. Subsequent gastroscopy identified a duodenal diaphragm nearly occluding the duodenal lumen at the same site, impeding the passage of the endoscope. Associated findings included gastritis and the presence of food debris in the stomach and proximal duodenum, indicating impaired gastric emptying. The patient underwent successful surgical management via duodenotomy with resection of the septum. Postoperative recovery was uneventful. Conclusions: In infants or young children with persistent postprandial vomiting and inadequate weight gain, anatomical causes such as duodenal diaphragm/web should be considered in the differential diagnosis. Once identified, treatment should be initiated promptly, either endoscopically or surgically, depending on the severity and anatomical characteristics of the obstruction. Full article

Background/Objective: Cesarean scar pregnancy (CSP) represents a challenging and potentially life-threatening form of ectopic pregnancy. This study aims to assess the feasibility, safety, and clinical efficacy of employing the hysteroscopic mechanical tissue removal system as a primary treatment modality for CSP. Methods: This retrospective cohort study included 53 patients diagnosed with CSP who underwent primary hysteroscopic resection at a tertiary care center. The surgical procedure was performed by prioritizing the “no-touch” vaginoscopic approach, which avoids instrumentation. Success rates, operation time, time to negative serum β-hCG, complications, and differences between the anatomical types of CSP (Type 1 vs. Type 2) were analyzed. Results: Primary hysteroscopic treatment was successful in 51 of 53 patients (96.2%). For the entire cohort, the median operative time was 7 min (range: 2–30), and the median interval to β-hCG negativization was 11 days (range: 6–45). The overall major complication rate was 3.8% (n = 2). One case was deemed unsuccessful due to conversion to laparotomy following uterine perforation during cervical dilation. Another patient, diagnosed with persistent trophoblastic disease requiring methotrexate (MTX) therapy, was also considered a treatment failure. Operative time was significantly longer in patients with Type II CSP compared with Type I (median 9 min vs. 5 min; p = 0.0004). Conclusions: Hysteroscopic mechanical tissue removal as a primary treatment for cesarean scar pregnancy represents an effective and safe “one-step” approach, characterized by a high success rate, rapid β-hCG resolution, and a low incidence of complications. This fertility-preserving, minimally invasive technique may be considered a primary treatment option for hemodynamically stable patients with CSP, provided that appropriate patient selection is undertaken and sufficient surgical expertise is available. Full article