Selective Arterial Embolization Research Articles

Combining transcatheter arterial embolization with endoscopic debulking for hypervascular airway tumor management: a retrospective single center study.

Airway obstruction due to tumor invasion or concurrent respiratory distress and hemoptysis poses a significant challenge in clinical management, often requiring prompt and effective intervention to alleviate symptoms and improve patient outcomes. This study aimed to evaluate the efficacy and safety of selective transcatheter arterial embolization (TAE) as a preparatory measure to mitigate airway obstruction before bronchoscopic debulking as an approach to address this clinical challenge. The data of patients with airway obstruction due to tumor invasion or concurrent respiratory distress and hemoptysis treated at The First Affiliated Hospital of Zhengzhou University from January 2018 to August 2022 were analyzed. After computed tomography (CT) scans and bronchoscopic findings were assessed, selective TAE was performed as a preparatory measure to alleviate airway obstruction before bronchoscopic debulking, and the occurrence of hemorrhage-related complications, Karnofsky Performance Status (KPS) score, breathlessness index, and the extent of airway obstruction were evaluated. All 22 patients underwent selective TAE before bronchoscopic tumor debulking. The overall efficacy rate was 100%, with a significant improvement in the KPS score from preoperative (60.45±14.63) to postoperative (74.55±9.63) levels (t=-6.891; P<0.001). Similarly, there was a considerable reduction in the shortness of breath score from preoperative (2.91±0.81) to postoperative (1.73±0.63) levels (t=6.973; P<0.001). Airway obstruction decreased substantially from preoperative (79.14%±14.56%) to postoperative (21.27%±7.19%) levels (t=26.857; P<0.001). Furthermore, the severity classification of airway obstruction decreased from preoperative (4±0.82) to postoperative (1.36±0.49) levels (t=18.794; P<0.001). Among the patients, only one experienced moderate bleeding necessitating prolonged mechanical balloon compression and intracavitary lesion removal, while the other patients had minor and negligible bleeding. TAE combined with endoscopic debulking can effectively control intraoperative bleeding and respiratory distress and achieve successful local resolution of endotracheal hypervascular tumors.

Extravasated Pudendal Artery Pseudoaneurysm Presenting as a Large Vaginal Hematoma Following Uncomplicated Delivery

Body of Abstract: (1) To report a case of an extravasated pudendal pseudoaneurysm presenting as vaginal hematoma following an uncomplicated delivery. (2) To discuss alternatives of management of vulvar hematomas. Introduction: Postpartum hemorrhage is a leading cause of maternal mortality and can infrequently (1/300-1/1500 deliveries) be caused by vulvar hematomas. Vulvar hematomas are typically small and resolve with conservative treatment. Rarely, they can develop rapidly, posing a significant risk to the patient. Risks for vulvar hematomas include a prolonged second stage of labor, multiple gestation, operative vaginal delivery, episiotomy, and vaginal laceration. Extravasation from a pseudoaneurysm in the pelvic arteries is a rare cause of vulvar hematomas (&lt; 5% of cases) with &gt;75% involving the uterine artery. Pseudoaneurysms typically result from damage to vasculature during a traumatic delivery. Spread into the retroperitoneal space can lead to shock and eventual demise if improperly managed. This case illustrates the exceptionally rare occurrence of a pudendal artery pseudoaneurysm with rapidly expanding potentially catastrophic hematoma formation. Case Summary: Presented is a 21-year-old G2P1011 patient at 39w5d with a large vaginal hematoma diagnosed shortly following spontaneous vaginal delivery. The case initially presented to the hospital one hour after spontaneous rupture of membranes with an unremarkable pregnancy. Normal labor ensued and stage II of labor lasted one hour with an uncomplicated nonoperative vaginal delivery. Postpartum a significant increase in fundal height was noted. Cytotec was given and bladder catheterization removed 800 ml urine. Abdominal pain increased. Vital signs were normal. Exam revealed a large posterior vaginal wall swelling extending upward, but without active bleeding. A computerized tomography (CT) scan of the abdomen/pelvis revealed a 9.7 X 10.5 X 13.2 cm pelvic hematoma arising from the posterior vaginal wall with extension cephalad into the perirectal space and right adnexa. Evidence of active bleeding and bilateral hydronephrosis were reported. Hemoglobin was 10.1, down from admission 12.5. Symptoms included worsening abdominal pain and dizziness. Based on the active bleeding noted on CT scan and the progressive symptoms, the patient was transferred to a tertiary care center. Upon tertiary center admission the patient was tachycardic and hypotensive (P 153 and BP 101/61). Hemoglobin was 9.3. Physical exam was unchanged. Interventional radiology recommended and patient underwent embolization of bilateral uterine arteries for treatment of a diagnosed pseudoaneurysm with extravasation of the right pudendal artery. Postpartum day 1, mild right lower quadrant pain was felt to be consistent with the embolization. Hemoglobin decreased to 6.5, and the patient received one unit of packed red blood cells (PRBCs). Clinically, ambulation was tolerated, but tachycardia and hypotension remained and there was decreased swelling. Hemoglobin remained low at 6.8, and another unit of PRBCs was given. Hospital course thereafter was uneventful and discharge was on day 3. Discussion: This case describes a vaginal hematoma and pudendal artery pseudoaneurysm as a very rare but potentially life-threatening postpartum hemorrhage following vaginal delivery. Association with an uncomplicated pregnancy and delivery, involvement of the pudendal artery with an expanding large hematoma dissecting the retroperitoneal space creating a hemodynamically unstable situation are only rarely seen concurrently. Hematoma treatment starts conservatively, utilizing ice, rest, and pain control if patient is hemodynamically stable and the hematoma is small. When large, rapidly expanding, or the patient is hemodynamically unstable, surgical intervention or artery embolization should be considered when imaging identifies the source of bleeding. Imaging may include ultrasound, CT, CT angiography, and magnetic resonance imaging as options for localization of hematoma. No superior mode of evaluation is identified. Pseudoaneurysms following delivery have most commonly been described in the uterine arteries with only a handful of case reports documenting other sources including the obturator, labial, vaginal, and internal pudendal arteries. Our case demonstrates that extravasated pelvic artery pseudoaneurysms can present in benign appearing nonoperative deliveries and should be considered in the differential diagnosis as a source of post-partum hemorrhage. Recently, pseudo-aneurysms have more commonly been treated with IR artery embolization as it is a less invasive and better tolerated procedure by patients. Tsumagari et al suggested an algorithm proposing vulvovaginal hematomas should be observed versus surgically evacuated, whereas upper vaginal hematomas should undergo CT angiography for assessment for selective arterial embolization. Conclusion: Pseudoaneurysms of the pudendal artery with hematoma formation occurring in an uncomplicated delivery are an extremely rare cause of potentially life-threatening hemorrhage as reported in only a handful of cases. Because of their potential for catastrophic sequelae, they should be considered in the differential diagnosis of expanding upper vaginal hematomas. This case depicts the importance and success of rapid identification and embolization of pudendal artery pseudoaneurysm to prevent mortality.

Dramatic Reduction Of Symptomatic Renal Angiomyolipoma With Pseudoaneurysm By Selective Arterial Embolization: A Case Presentation

Purpose: Angiomyolipomas are usually diagnosed incidentally and are usually asymptomatic. Dysmorphic blood vessels in angiomyolipomas usually do not contain an internal elastic lamina, so bleeding risks are high. Particularly, lesions larger than 4 cm have a tendency to become symptomatic and can present with life-threatening retroperitoneal or urinary bleeding. Although intrarenal or perinephric bleeding is the usual complication of angiomyolipomas, a pseudoaneurysm appears unusual. In this case, we aimed to present a patient with pseudoaneurysm, an unusual complication of angiomyolipoma. Case presentation: In this article, a patient who presented with complaints of left flank pain and hematuria and who underwent selective arterial embolization due to pseudoaneurysmatic angiomyolipoma in the left kidney is presented. The patient's angiography showed a large hypervascular mass filling the upper and middle segments of the left kidney. A pseudoaneurysmal filling originating from a subsegmental branch was observed in the mass. The patient underwent selective embolization. After 5 years of follow-up, the mass was observed to shrink. Conclusions: Angiomyolipomas are benign tumors, but especially symptomatic masses larger than 4 cm and especially masses with aneurysms larger than 5 mm can cause life-threatening retroperitoneal hemorrhages. Coexistence of angiomyolipomas with pseudoaneurysm is rare, especially. Safe, effective and minimally invasive selective arterial embolization can be safely performed to prevent massive bleeding and rupture.

Comprehensive Insights Into Renal Perivascular Epithelioid Cell Neoplasms: From Molecular Mechanisms to Clinical Practice

Comprehensive Insights Into Renal Perivascular Epithelioid Cell Neoplasms: From Molecular Mechanisms to Clinical Practice

Selective Genicular Artery Embolization in the Management of Osteoarthritic Knee Pain-A Narrative Review.

Many people with pain from osteoarthritis (OA) of the knee are either not ready for surgery or may never be surgical candidates. Genicular artery embolization (GAE) is a new proposed management for those with pain despite maximum medical management. It has historically been used to manage recurrent spontaneous haemarthrosis following total knee replacement, but newer studies are showing a positive effect in managing pre-arthroplasty knee OA. The goal of this review is to summarise current and relevant literature from searches of computerised databases and relevant journals, and analyse their results. Studies included show that GAE has promising outcomes in managing mild to moderate OA knee pain in those who have exhausted at least 3 months of conservative therapy. Most studies show improvements in VAS pain and PROM scores (including KOOS, and/or WOMAC). Minimal adverse effects have been associated in up to two years of follow up, the majority of which are self-resolving. The article précises a concise general procedural technique for performing GAE, as well as comparing and contrasting different embolic agents that may be utilised. GAE shows promising outcomes in management of mild to moderate OA knee pain. In the future, there will need to be higher volume studies to determine effectiveness, suitable candidates, and other potential adverse effects.

Az arteria meningea media embolisatio szerepe a krónikus subduralis haematoma kezelési algoritmusában, legújabb evidenciák és saját tapasztalataink

<p>Chronic subdural hematoma is one of the most common diseases requiring a neurosurgical operation that affect elderly and fragile patients. In addition to standard neurosurgical operations (trepanation and craniotomy), embolization of the meningeal artery media is an alternative solution. Several review aerticles have confirmed the very high rate of success and safety of the endovascular treatment. We present the technical details and results of our 10 consecutive selective media meningeal artery embolization procedures for residual chronic subdural hematomas. Our interventions were performed without complications and all resulted in complete recovery.&nbsp;</p>.

Trends and outcomes of hospitalized patients with priapism in Germany: results from the GRAND study.

We aimed to provide evidence on the trends and in-hospital outcomes of patients with low- and high-flow priapism through the largest study in the field. We used the GeRmAn Nationwide inpatient Data (GRAND), provided by the Research Data Center of the Federal Bureau of Statistics (2008-2021), and performed multiple patient-level analyses. We included 6,588 men with low-flow and 729 with high-flow priapism. Among patients with low-flow priapism, 156 (2.4%) suffered from sickle cell disease, and 1,477 (22.4%) patients required shunt surgery. Of them, only 37 (2.5%) received a concomitant penile prosthesis implantation (30 inflatable and 7 semi-rigid prosthesis). In Germany, the total number of patients with low-flow priapism requiring hospital stay has steadily increased, while the number of patients with high-flow priapism requiring hospital stay has decreased in the last years. Among patients with high-flow priapism, 136 (18.7%) required selective artery embolization. In men with low-flow priapism, sickle cell disease was associated with high rates of exchange transfusion (OR: 21, 95% CI: 14-31, p < 0.001). The length of hospital stay (p = 0.06) and the intensive care unit admissions (p = 0.9) did not differ between patients with low-flow priapism due to sickle cell disease versus other causes of low-flow priapism. Accordingly, in men with high-flow priapism, embolization was not associated with worse outcomes in terms of length of hospital stay (p > 0.9), transfusion (p = 0.8), and intensive care unit admission (p = 0.5). Low-flow priapism is an absolute emergency that requires shunt surgery in more than one-fifth of all patients requiring hospital stay. On the contrary, high-flow priapism is still managed, in most cases, conservatively.

Renal angiomyolipoma selective arterial embolization: Australian tertiary centre experience over 10 years.

The purpose of this study is to evaluate the patient selection methods, treatment outcomes, complications, clinical and radiological follow-up after renal angiomyolipoma (AML) treatment with selective arterial embolization (SAE) in an Australian metropolitan tertiary centre. This study presents a retrospective single-centre review of patients' medical records who underwent SAE for renal AML during the period of 1st January 2012 and 1st January 2023. A total of 32 SAE procedures for renal AML occurred during the study period. Three episodes were classified as emergency cases [9.38%] and the remaining 29 were treated electively. Mean AML size pre-treatment was 69.45 mm (range = 33-177; SD = 31.69). All AMLs demonstrated hyper-vascularity on contrast-enhanced cross-sectional imaging (arterial-phase enhancement characteristics and/or prominent tortuous feeding vessels) [n = 32; 100%] or an intralesional aneurysm or pseudoaneurysm [n = 12; 42.85%]. Periprocedural complications [n = 3; 9.38%] included: one intralesional haemorrhage after embolization, one vascular access site complication, and one lipiduria-associated urinary tract infection. No patients suffered a life-threatening complication, non-target embolization, deterioration in renal function or death following SAE. Re-treatment with SAE was performed in only three patients [10.71%]. Hospital mean length of stay was 1.58 days. Median durations of clinical and radiological follow-up post-treatment were 493 days (range = 104-1645) and 501 days (range = 35-1774), respectively. Follow-up imaging revealed AML total size reduction in all cases [mean = -17.17 mm; -26.51%] and 50% had obliteration of lesion hyper-vascularity after one episode of SAE. Outpatient clinical follow-up signifies that none of the patients included in the study have re-presented with lesion haemorrhage after successful SAE. In this study, renal AMLs were treated safely with a high degree of success by using SAE, and there were very low rates of periprocedural complications. Follow-up of patients after SAE treatment of renal AML should include both radiological (assessment for reduction in lesion vascularity and size) and clinical review in an outpatient clinic setting (either by an interventional radiologist or urologist).

Modern treatment of unicameral and aneurysmatic bone cysts.

The best treatment of unicameral bone cyst and aneurismatic bone cyst (ABC) is debated in the literature. For simple bone cysts, multiple treatments were proposed from observation only to open curettage. The historical treatment with intraosseous injection of methylprednisolone acetate into the bone cysts nowadays is reduced due to the morbidity of multiple injections and the risk of multiple pathologic fractures until the healing. Different types of treatments for ABC are reported, including surgery, percutaneous treatments, and medical treatments; however, there is currently no consensus on the best approach. The association of curettage, bone graft, and elastic stable intramedullary nail (ESIN) had a success rate of over 85%. Decompressing the cyst wall is more critical for increasing the healing rate than the type of graft used to fill the cavity. In ABC, sclerotherapy offers the advantages of lower invasiveness and morbidity, associated with better functional scores and faster return to full weight-bearing. Moreover, they can be used in challenging locations. Selective arterial embolization is a complex procedure and often requires association with other treatments. Further studies are needed to confirm the effectiveness of denosumab and its side effects on skeletally immature patients. Curettage with adjuvants and autogenous bone grafting still shows promising results and can be used in larger, aggressive defects or superficial lesions. For simple bone cysts, the combination of curettage, bone graft, and ESIN showed the best results. Sclerotherapy for ABC also shows promising results.

Arterial pseudoaneurysm: a rare complication following laser lithotripsy-case series and literature review.

To perform a comprehensive narrative review that will examine the risk factors and treatment outcomes of arterial pseudoaneurysm following laser flexible ureteroscopy (F-URS). A retrospective case series and a review of literature was performed. Clinical records from three patients treated for postoperative arterial pseudoaneurysm from January of 2021 to November 2023 were identified. A comprehensive literature review was also performed. The MEDLINE and Scopus databases were searched. The analysis was made by a narrative synthesis. Three cases of postoperative arterial pseudoaneurysm were included, one from our center, one from Dubai, UAE, and one from Barcelona. The literature review identified six case reports, two after endocorporeal laser lithotripsy with thulium fiber laser (TFL) and four with Ho:YAG laser. All cases, from our series and literature review, presented with macroscopic hematuria and used high-power laser settings. All cases were treated by selective embolization. Ho:YAG or TFL lasers are both capable of causing arterial pseudoaneurysms following F-URS if high-power settings are used. Selective artery embolization continues to be the treatment of choice with good outcomes.

Selective Arterial Embolization for the Management of Large Multinodular Cervicomediastinal Goiter

In the surgical treatment of thyroid disease, surgery of cervicomediastinal goiters has always been a challenge, due to the high risk of intraoperative and postoperative complications, especially excessive bleeding. Case report Fifty-one-year-old female patient with multiple underlying diseases, presenting a large cervical mass resulting to be a large multinodular cervicomediastinal goiter. Underwent selective arterial embolization of vascular branches supplying irrigation to the mass and later a total thyroidectomy with minimum blood loss during the intraoperative time. Conclusion Even if preoperative selective artery embolization is far from being a routine technique in cervicomediastinal goiter surgery, in selected patients who have many underlying medical problems, very voluminous goiter, high bleeding risk or high intraoperative risk, it can be considered a useful and safe procedure.

A pulmonary artery was embolized in a patient with an occluded pulmonary vein to manage massive hemoptysis

BackgroundStenosis and obliteration of the pulmonary vein can be developed by multiple diseases and might cause hemoptysis. Traditional therapy including surgical procedure and conservative treatments might be inappropriate choices to manage massive hemoptysis.Case presentationA 64-year-old man, diagnosed with advanced stage IVA lung squamous cell carcinoma, presented with dyspnea and recurrent, massive hemoptysis. An initial contrast-enhanced computed tomography revealed a giant tumor in the left lung hilus and occlusion of the left superior pulmonary vein. Despite immediate selective bronchial artery embolization and simultaneous embolization of an anomalous branch of the internal thoracic artery, the massive hemoptysis continued. Subsequently, embolization of the left superior pulmonary artery was performed, achieving functional pulmonary lobectomy, which successfully treated the hemoptysis without relapse during a six-month follow-up. The patient continues to undergo cancer therapy and remains stable.ConclusionsThis case successfully managed massive hemoptysis associated with lung cancer invasion into the pulmonary vein through functional pulmonary lobectomy via embolization of the corresponding pulmonary artery.

Partial splenic embolization with embosphere microspheres (700-900 µm) for the treatment of hypersplenism: comparison of selective superior splenic artery embolization and inferior splenic artery embolization

Objective: To compare clinical outcomes of superior versus inferior splenic artery embolization in partial splenic embolization (PSE) and identify predictors of major complications. Material and methods: This retrospective case-control study included 73 patients who underwent PSE between May 2005 and April 2021. They were divided into two groups: the superior and middle splenic artery embolization group (Group A, n = 37) and the inferior and middle splenic artery embolization group (Group B, n = 36). Outcome differences and major complications between the groups were assessed. Logistic regression was used to analyze potential predictors of major complications, and the optimal cutoff value for splenic embolization rates was determined using the Youden index. Results: There were no significant differences in laboratory and radiological outcomes between the two groups. Group A had a significantly lower incidence of major complications than Group B (p = 0.049), a lower Visual Analog Scale (VAS) score for pain (p = 0.036), and a shorter hospital stay (p = 0.022). Independent risk factors for major complications included inferior and middle splenic artery embolization (odds ratio [OR] = 3.672; 95% confidence interval [CI] = 1.028-13.120; p = 0.045) and a higher spleen embolization rate (OR = 1.108; 95% CI = 1.003-1.224; p = 0.044). The optimal cutoff for spleen embolization rate to predict major complications was 59.93% (sensitivity 77.8%, specificity 63.6%). Conclusion: Using 500-700 µm microspheres for PSE, targeting the middle and superior splenic artery yields similar effects to targeting the middle and inferior artery, but results in lower rates of major complications and shorter hospital stays. To effectively minimize the risk of major complications, the embolization rate should be kept below 59.93%, regardless of the target vessel.

Symptomatic and aggressive vertebral hemangiomas in children: features of modern interpretation and treatment tactics

Objective. To analyze the features of clinical-radiological manifestations of symptomatic vertebral hemangiomas in children and the possibility of algorithmizing their treatment.Material and Methods. As part of a monocenter cohort, 24 children aged 4 to 17 years received treatment for symptomatic vertebral hemangiomas. The clinical-radiological manifestations of the tumor and the effectiveness of various methods of invasive treatment were evaluated.Results. Symptomatic uncomplicated and complicated vertebral hemangiomas, corresponding to stages S2 and S3 of the Enneking classification for benign tumors, occur in children with almost equal frequency. For tumors without extravertebral spread, a closed percutaneous vertebroplasty provides stable relief of complaints. For aggressive hemangiomas with extravertebral, including epidural, spread, various treatment methods are used. An algorithm for choosing therapeutic tactics is proposed.Conclusion. Surgical treatment of symptomatic vertebral hemangiomas should be carried out using a tactical algorithm that takes into account the stage of the tumor (S2 or S3) and the possibility of performing closed or open vertebroplasty, selective arterial embolization and decompression and stabilization operations on the spine.

A novel swine model of selective middle meningeal artery catheterization and embolization

BackgroundMiddle meningeal artery (MMA) embolization is a promising intervention as a stand-alone or adjunct treatment to surgery in patients with chronic subdural hematomas. There are currently no large animal models...

Surgical evacuation combined with Shirodkar cervical suture and selective uterine artery embolization: A fertility preserving treatment for 10-15 weeks' live cesarean scar ectopic pregnancies.

Cesarean scar ectopic pregnancies (CSEPs) are associated with significant maternal morbidity and termination is often recommended in the early first trimester. Management of more advanced cases is challenging due to higher risks of major intraoperative hemorrhage. Hysterectomy is currently the intervention of choice for advanced cases. This study aimed to investigate if advanced live CSEPs could be managed effectively conservatively using suction curettage and interventional radiology. A retrospective single-center cohort study was performed. A total of 371 women diagnosed with CSEP were identified between January 2008 and January 2023. A total of 6% (22/371) women had an advanced live CSEP with crown-rump length (CRL) of ≥40 mm (≥10 weeks' gestation). Of these, 77% (17/22) opted for surgical intervention, whilst the remaining five continued their pregnancies. A preoperative ultrasound was performed in each patient. All women underwent suction curettage under ultrasound guidance and insertion of Shirodkar cervical suture as a primary hemostatic measure combined with uterine artery embolization (UAE) if required. The primary outcome was rate of blood transfusion. Secondary outcomes were estimated intraoperative blood loss, UAE, intensive care unit admission, reintervention, hysterectomy, hospitalization duration and rate of retained products of conception. Descriptive statistics were used to describe these variables. Median CRL of the 17 patients included was 54.1 mm (range: 40.0-85.7) and median gestational age based on CRL was 12 + 3 weeks (range: 10 + 6-15 + 0). On preoperative ultrasound scan placental lacunae were recorded in 76% (13/17) of patients and color Doppler score was ≥3 in 67% (10/15) of patients. At surgery, Shirodkar cervical suture was used in all cases. It was successful in achieving hemostasis by tamponade in 76% (13/17) of patients. In the remaining 24% (4/17) patients tamponade failed to achieve complete hemostasis and UAE was performed to stop persistent arterial bleeding into the uterine cavity. Median intraoperative blood loss was 800 mL (range: 250-2500) and 41% (7/17) women lost >1000 mL. 35% (6/17) needed blood transfusion. No women required hysterectomy. Surgical evacuation with Shirodkar cervical suture and selective UAE is an effective treatment for advanced live CSEPs.

Diagnosis and Current Treatment of Aneurysmal Bone Cysts.

The purpose of this review is to increase awareness about the evolution and development of current trends in the diagnosis and treatment of aneurysmal bone cysts (ABCs). ABCs are benign, but locally aggressive bone tumors that mainly affect children. ABCs comprise 1% of all primary bone tumors and occur most frequently during the first two decades of life. The diagnosis is made using a variety of imaging modalities and has the characteristic features of an expansile, radiolucent lesion that is often seen in the metaphyseal region of the bone and has fluid-fluid levels that are apparent on MRI. In the pediatric population, telangiectatic osteosarcoma and unicameral bone cyst (UBC) are the main differential diagnoses of an ABC. Giant cell tumors (GCTs) also include in differential diagnosis, which often manifest in patients older than 15 and do not penetrate the open physis although they develop after the physeal closure. Imaging alone cannot rule out telangiectatic osteosarcoma; therefore, a biopsy is recommended. A variety of treatment options have been described; traditionally, most patients are treated with curettage and bone grafting. Curettage alone, however, usually results in tumor recurrence following excision. A variety of adjuvants have been utilized with varying degrees of effectiveness to reduce the risk of local recurrence. When a cyst is in the pelvis, its location and size are such that surgery is a very risky option. Selective arterial embolization has significantly contributed to the development of effective treatments for these situations. Embolization or radiation, as well as denosumab therapy, are widely used as therapies for ABCs in anatomic locations where surgery would significantly increase morbidity.

Surgical management of pediatric spinal aneurysmal bone cysts: patient series.

Aneurysmal bone cysts (ABCs) are rare, highly vascular osteolytic bone lesions that predominantly affect pediatric populations. This report evaluates the clinicopathological data of pediatric patients with spinal ABCs. The medical records for all patients at Children's Hospital Los Angeles with biopsy-proven ABCs of the spine between 1998 and 2018 were evaluated. Seventeen patients, 6 males and 11 females, were identified. The mean age at surgery was 10.4 years (range, 3.5-20 years). The most common presenting complaint was pain at the lesion site 16/17 (94%), followed by lower-extremity weakness 8/17 (47%). Resection and intralesional curettage were performed in all patients. Three (18%) of 17 patients underwent selective arterial embolization prior to resection. Spinal stability was compromised in 15 of 17 patients (88%), requiring instrumented fusion. Five (29%) of the 17 patients received additional therapy including radiation, calcitonin-methylprednisolone, or phenol. Four (23.5%) of 17 patients experienced a recurrence, and the mean time to recurrence was 15 months. The postoperative follow-up ranged from 6 to 108 months (median, 28 months). Reoperation occurred after an average of 35 months. At the recent follow-up, patients were free of disease. Gross-total resection by intralesional curettage with case-dependent instrumented spinal fusion for instability remains an effective strategy for managing pediatric spinal ABCs. Long-term follow-up is necessary to detect tumor recurrence.

Internal Iliac Artery Ligation in Obstetrics and Gynecology: Surgical Anatomy and Surgical Considerations.

The internal iliac artery (IIA) is the main arterial vessel of the pelvis. It supplies the pelvic viscera, pelvic walls, perineum, and gluteal region. In cases of severe obstetrical or gynecologic hemorrhage, IIA ligation can be a lifesaving procedure. Regrettably, IIA ligation has not gained widespread popularity, primarily due to limited surgical training and concerns regarding possible complications, including buttock claudication, impotence, and urinary bladder and rectum necroses. Nowadays, selective arterial embolization or temporary balloon occlusion are increasingly utilized alternatives, which can be applied preoperatively or intraoperatively for threatening severe genital or pelvic bleeding. However, IIA ligation retains its relevance, as the previously described procedures are not always available and have limitations. This article provides a step-by-step guide to the IIA ligation procedure and its possible complications. It also includes a detailed description of the anatomy of the IIA and pelvic arterial anastomoses. This review highlights the importance of a thorough understanding of pelvic anatomy as a prerequisite for safe IIA ligation and posits that training in this procedure should be an integral part of obstetrics and gynecology curricula.

Safety and Efficacy of Selective Renal Artery Embolization in the Management of Postprocedural Acute Renal Bleeding: Experience of A Tertiary Care Center

Safety and Efficacy of Selective Renal Artery Embolization in the Management of Postprocedural Acute Renal Bleeding: Experience of A Tertiary Care Center