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Liu X, Xiao W, Yang Y, Yan Y, Liang F. Augmented reality technology shortens aneurysm surgery learning curve for residents. Comput Assist Surg (Abingdon) 2024; 29:2311940. [PMID: 38315080 DOI: 10.1080/24699322.2024.2311940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024] Open
Abstract
OBJECTIVES We aimed to prospectively investigate the benefit of using augmented reality (AR) for surgery residents learning aneurysm surgery. MATERIALS AND METHODS Eight residents were included, and divided into an AR group and a control group (4 in each group). Both groups were asked to locate an aneurysm with a blue circle on the same screenshot after their viewing of surgery videos from both AR and non-AR tests. Only the AR group was allowed to inspect and manipulate an AR holographic representation of the aneurysm in AR tests. The actual location of the aneurysm was defined by a yellow circle by an attending physician after each test. Localization deviation was determined by the distance between the blue and yellow circle. RESULTS Localization deviation was lower in the AR group than in the control group in the last 2 tests (AR Test 2: 2.7 ± 1.0 mm vs. 5.8 ± 4.1 mm, p = 0.01, non-AR Test 2: 2.1 ± 0.8 mm vs. 5.9 ± 5.8 mm, p < 0.001). The mean deviation was lower in non-AR Test 2 as compared to non-AR Test 1 in both groups (AR: p < 0.001, control: p = 0.391). The localization deviation of the AR group decreased from 8.1 ± 3.8 mm in Test 2 to 2.7 ± 1.0 mm in AR Test 2 (p < 0.001). CONCLUSION AR technology provides an effective and interactive way for neurosurgery training, and shortens the learning curve for residents in aneurysm surgery.
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Affiliation(s)
- Xinman Liu
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Weiping Xiao
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Yibing Yang
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Yan Yan
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Feng Liang
- Department of Neurosurgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Alotaibi NS. Micro aneurysm detection using optimized residual-based temporal attention Convolutional Neural Network with Inception-V3 transfer learning. Microsc Res Tech 2024; 87:908-921. [PMID: 38168879 DOI: 10.1002/jemt.24478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 10/27/2023] [Accepted: 12/09/2023] [Indexed: 01/05/2024]
Abstract
In this manuscript micro aneurysm detection using residual-based temporal attention Convolutional Neural Network (CNN) with Inception-V3 transfer learning optimized with equilibrium optimization algorithm (MA-RTCNN-Inception V3-EOA) is proposed. The proposed research work contains four phases: (1) pre-processing, (2) segmentation, (3) post-processing, and (4) classification. At first, guided box filtering for contrast enhancement and background exclusion of input image. The proposed MA-RTCNN-Inception V3-EOA based classification framework is implemented in MATLAB using several performances evaluating metrics like precision, sensitivity, f-measure, specificity, accuracy, classification error rate, and Matthews's correlation coefficient and RoC analysis. The experimental outcome demonstrates that the proposed method provides 23.56%, 14.99%, and 21.37% higher accuracy and 31.26%, 57.69%, and 21.14% minimum classification error rate compared to existing methods, such as diabetic retinopathy identification utilizing prognosis of micro aneurysm and early diagnosis for non-proliferative diabetic retinopathy depending on deep learning approaches (DRD-CNN-NPDR), a magnified adaptive feature pyramid network for automatic micro aneurysms identification (MAFPN-AMD-MAFP-Net) respectively. RESEARCH HIGHLIGHTS: Micro aneurysm detection using residual-based temporal attention Convolutional Neural Network (CNN) is proposed. To get rid of the retina background, guided box filtering is applied. COAT is used for segmenting the images into smaller parts RTCNN is used for accurate micro aneurysms disease classification. RT-CNN algorithm successfully identifies the micro aneurysms using EOA.
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Mei J, Yu H, Qin L, Zhang J, Xu H, Xue T, Tang L, Jia Z. Multimodal Study of the Superior Mesenteric Artery Wall. Ann Vasc Surg 2024; 102:92-100. [PMID: 38301851 DOI: 10.1016/j.avsg.2023.11.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/23/2023] [Accepted: 11/07/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND To quantitatively analyze histological and fiber structure of the superior mesenteric artery (SMA) wall and to further explore the possible relationship between the architecture and histology changes of vessel wall and the occurrence of related diseases. METHODS Histological and fiber structure analysis were performed on SMA specimens obtained from 22 cadavers. The SMA specimens were divided into initial, curved, and distal segments, and each segment was separated into the anterior and posterior walls. RESULTS From the initial to the curved to the distal segment, the ratio of elastin decreased (31.4% ± 6.0%, 21.1% ± 5.8%, 18.6% ± 4.7%, respectively; P < 0.001), whereas the ratio of smooth muscle actin (24.5% ± 8.7%, 30.5% ± 6.8%, 36.1% ± 7.3%, respectively; P < 0.001) increased. Elastic fiber longitudinal amplitude of angular undulation was highest in the initial segment [7° (3.25°, 15°)] and lowest in the curved segment [2° (1°, 5°)]. In SMA curved segment, the anterior wall, when compared with the posterior wall, demonstrated a lower ratio of elastin (19.0% ± 5.8% vs. 23.3% ± 5.0%; P = 0.010) and collagen (41.4% ± 12.3% vs. 49.0% ± 10.2%; P = 0.032), a lower elastic fiber longitudinal amplitude of angular undulation [1° (1°, 5°) vs. 3° (2°, 5.25°); P = 0.013], a lower average fiber diameter (8.06 ± 0.36 pixels vs. 8.45 ± 0.50 pixels; P = 0.005), and a lower average segment length (17.96 ± 1.59 pixels vs. 20.05 ± 2.33 pixels; P = 0.001). CONCLUSIONS SMA wall structure varies along the circumferential and axial directions, the presence of dense undulated elastic fiber protects the SMA initial segment of from dissection and aneurysm, but highly cross-linked collagen fiber here increases the likelihood of plaque formation. In the anterior wall of the curved segment, lower elastin and collagen content, lower elastic fiber undulation, and higher degree of collagen fiber cross-linking leads to the occurrence of SMA dissection and aneurysm. In the distal segment, high levels of vascular smooth muscle cells and bundles of long collagen fiber offer protection against the development of SMA-related diseases.
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Affiliation(s)
- Junhao Mei
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Haiyang Yu
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Lihao Qin
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Jiawei Zhang
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Haoran Xu
- Department of Pathology, The Affiliated Changzhou Second People's Hospital with Nanjing Medical University, Changzhou, China
| | - Tongqing Xue
- Department of Interventional Radiology, Huaian Hospital of Huai'an City, Huai'an, China
| | - Liming Tang
- Department of Gastrointestinal Surgery, The Affiliated Changzhou Second People's Hospital with Nanjing Medical University, Changzhou, China
| | - Zhongzhi Jia
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China.
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Wang X, Tian W, Zhao Y, Yang Y, Deng L. Systemic immune inflammation index and system inflammation response index on the third postoperative day predict poor prognosis of aneurysmal subarachnoid hemorrhage patients. Medicine (Baltimore) 2024; 103:e37818. [PMID: 38640265 PMCID: PMC11030023 DOI: 10.1097/md.0000000000037818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 03/09/2024] [Accepted: 03/15/2024] [Indexed: 04/21/2024] Open
Abstract
The inflammatory response is involved in the progression of aneurysmal subarachnoid hemorrhage (aSAH). We sought to investigate the relationships of inflammatory indicators including blood cell counts and the ratios of different blood cells counts with the prognosis of aSAH patients. We performed a retrospective study including 140 patients with aSAH and aneurysm surgeries. The relationships of neutrophils, lymphocytes, monocytes, platelets, systemic immune inflammation index (SII), system inflammation response index (SIRI), neutrophil-lymphocyte ratio and platelet-lymphocyte ratio with prognosis were investigated by univariable analysis and multivariable logistic regression model. The patient with Modified Rankin Scale (mRS) score<3 was defined as having a good prognosis, while with mRS score ≥3 was defined as having a poor prognosis. Among 140 patients included, there were 108 cases with good prognosis and 32 cases with poor prognosis after follow-up. On the 3rd postoperative day, the neutrophils counts, SIRI level and SII level in cases with poor prognosis were significantly higher than cases with good prognosis, P < .05. After adjusting for baseline differences in Hunt-Hess grade, Glasgow Coma Scale score, combination with intraventricular hemorrhage and maximum diameter of aneurysm, the levels of SIRI (odds ratio = 3.968, 95% CI: 1.432-10.992, P = .008) and SII (odds ratio = 3.313, 95% CI: 1.029-10.665, P = .045) on the 3rd postoperative day could predict poor prognosis. SII and SIRI on the 3rd postoperative day could independently predict the poor prognosis in aSAH. However, the cutoff values for predicting prognosis needs to be validated in larger-sample studies.
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Affiliation(s)
- Xian Wang
- Department of Pharmacy, The First Affiliated Hospital of Yangtze University, Jingzhou, China
| | - Wei Tian
- The Neurointensive Care Unit, The First Affiliated Hospital of Yangtze University, Jingzhou, China
| | - Yongfeng Zhao
- Department of Hematology, The First Affiliated Hospital of Yangtze University, Jingzhou, China
| | - Yong Yang
- The Neurointensive Care Unit, The First Affiliated Hospital of Yangtze University, Jingzhou, China
| | - Li Deng
- Medical Department, The First Affiliated Hospital of Yangtze University, Jingzhou, China
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Hudelist B, Prebot J, Lecarpentier E, Apra C. A realistic aneurysm clipping simulation combining 3D-printed and placenta-based models-how I do it. Acta Neurochir (Wien) 2024; 166:172. [PMID: 38592539 DOI: 10.1007/s00701-024-06068-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/28/2024] [Indexed: 04/10/2024]
Abstract
INTRODUCTION Neurovascular surgery, particularly aneurysm clipping, is a critical skill for aspiring neurosurgeons. However, hands-on training opportunities are limited, especially with the growing popularity of endovascular techniques. To address this challenge, we present a novel neurovascular surgical training station that combines synthetic 3D-printed models with placental vascular structures to create a semi-realistic surgical field. METHODS Our model consists of three components: a 3D-printed skull replica with anatomical landmarks, a malleable silicone parenchyma with a Sylvian fissure, and vascular layers (placenta). The placental vascular layer is catheterized and perfused to replicate pulsatile flow, offering a realistic aneurysm simulation. This innovative training station provides a cost-effective solution (approximately 200 USD once) without ethical constraints. Surgeons can practice essential skills such as Sylvian fissure dissection, managing anatomical constraints like bone, and achieving proximal vascular control. The model's realism allows for training in various scenarios, including clipping with different hand orientations and handling ruptures realistically. CONCLUSION Our neurovascular surgical station bridges the gap between existing training models, offering affordability, ecological considerations, and minimal ethical concerns. It empowers neurosurgery residents to refine their skills in handling both emergencies and elective cases under close-to-real surgical conditions, with the potential for independent practice and senior supervision.
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Affiliation(s)
- Benoit Hudelist
- Neurosurgery Department, UMR 955, Université Paris Est Créteil (UPEC)AP-HP, Henri Mondor HospitalUnitéIMRB, INSERM 15, 94000, Créteil, France.
- Department of Neurosurgery, GHU Paris - Psychiatry and Neuroscience, Sainte-Anne Hospital, Paris, France.
| | - Juliette Prebot
- Service de modélisation et d'impression 3D de l'Assistance Publique - Hopitaux de Paris (PRIM3D), Paris, France
| | - Edouard Lecarpentier
- Department of Obstetrics Gynecology and Reproductive Medicine, Centre Hospitalier Inter-Communal de Créteil, Creteil, France
- Faculté de Santé, Univ Paris Est Créteil, Créteil, France
- INSERM, Institut Cochin, Paris, France
| | - Caroline Apra
- Neurosurgery Department, UMR 955, Université Paris Est Créteil (UPEC)AP-HP, Henri Mondor HospitalUnitéIMRB, INSERM 15, 94000, Créteil, France
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Takiguchi T, Tominaga N, Hamaguchi T, Seki T, Nakata J, Yamamoto T, Tagami T, Inoue A, Hifumi T, Sakamoto T, Kuroda Y, Yokobori S. Etiology-Based Prognosis of Extracorporeal CPR Recipients After Out-of-Hospital Cardiac Arrest: A Retrospective Multicenter Cohort Study. Chest 2024; 165:858-869. [PMID: 37879561 DOI: 10.1016/j.chest.2023.10.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/04/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND A better understanding of the relative contributions of various factors to patient outcomes is essential for optimal patient selection for extracorporeal CPR (ECPR) therapy for patients with out-of-hospital cardiac arrest (OHCA). However, evidence on the prognostic comparison based on the etiologies of cardiac arrest is limited. RESEARCH QUESTION What is the etiology-based prognosis of patients undergoing ECPR for OHCA? STUDY DESIGN AND METHODS This retrospective multicenter registry study involved 36 institutions in Japan and included all adult patients with OHCA who underwent ECPR between January 2013 and December 2018. The primary etiology for OHCA was determined retrospectively from all hospital-based data at each institution. We performed a multivariable logistic regression model to determine the association between etiology of cardiac arrest and two outcomes: favorable neurologic outcome and survival at hospital discharge. RESULTS We identified 1,781 eligible patients, of whom 1,405 (78.9%) had cardiac arrest because of cardiac causes. Multivariable logistic regression analysis for favorable neurologic outcome showed that accidental hypothermia (adjusted OR, 5.12; 95% CI, 2.98-8.80; P < .001) was associated with a significantly higher rate of favorable neurologic outcome than cardiac causes. Multivariable logistic regression analysis for survival showed that accidental hypothermia (adjusted OR, 5.19; 95% CI, 3.15-8.56; P < .001) had significantly higher rates of survival than cardiac causes. Acute aortic dissection/aneurysm (adjusted OR, 0.07; 95% CI, 0.02-0.28; P < .001) and primary cerebral disorders (adjusted OR, 0.12; 95% CI, 0.03-0.50; P = .004) had significantly lower rates of survival than cardiac causes. INTERPRETATION In this retrospective multicenter cohort study, although most patients with OHCA underwent ECPR for cardiac causes, accidental hypothermia was associated with favorable neurologic outcome and survival; in contrast, acute aortic dissection/aneurysm and primary cerebral disorders were associated with nonsurvival compared with cardiac causes.
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Affiliation(s)
- Toru Takiguchi
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan; Department of Healthcare Information Management, The University of Tokyo Hospital, Tokyo, Japan.
| | - Naoki Tominaga
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
| | - Takuro Hamaguchi
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
| | - Tomohisa Seki
- Department of Healthcare Information Management, The University of Tokyo Hospital, Tokyo, Japan
| | - Jun Nakata
- Division of Cardiovascular Intensive Care, Department of Cardiovascular Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - Takeshi Yamamoto
- Division of Cardiovascular Intensive Care, Department of Cardiovascular Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - Takashi Tagami
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan; Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Akihiko Inoue
- Department of Emergency and Critical Care Medicine, Hyogo Emergency Medical Center, Kobe, Japan
| | - Toru Hifumi
- Department of Emergency and Critical Care Medicine, St. Luke's International Hospital, Tokyo, Japan
| | - Tetsuya Sakamoto
- Department of Emergency Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Yasuhiro Kuroda
- Department of Emergency Medicine, Kagawa University School of Medicine, Kagawa, Japan
| | - Shoji Yokobori
- Department of Emergency and Critical Care Medicine, Nippon Medical School, Tokyo, Japan
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Wang H, Yang N, Liu YW, Li YM. [Feasibility and safety study of distal radial artery approach in emergency PCI of elderly STEMI patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:276-280. [PMID: 38514329 DOI: 10.3760/cma.j.cn112148-20230831-00119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Objective: To investigate the feasibility and safety of distal radial artery approach in emergency percutaneous coronary intervention(PCI) of elderly ST-segment elevation myocardial infarction(STEMI) patients. Methods: This study is a cross-sectional study. Elderly patients with acute myocardial infarction who received emergency PCI at the Third Central Hospital of Tianjin from January 2020 to December 2022 were selected. They were divided into the distal radial artery group and the classic radial artery group based on the puncture location. The success rate, puncture time, surgical success rate, and surgical time of the two groups were observed; The incidence of complications in patients, including radial artery occlusion rate, radial artery spasm rate, local hematoma rate, aneurysm incidence rate were recorded. Results: There were 70 cases in the distal radial artery group, including 33 males (47.1%), aged (65.6±6.7) years old; There were 70 cases in the classic radial artery group, including 35 males (50.0%), aged (66.4±6.9) years old. There was no statistically significant difference in puncture success rate, puncture time, surgical success rate, and surgical time between the distal radial artery group and the classical radial artery group (P>0.05). The incidence of radial artery occlusion in the distal radial artery group was significantly lower than that in the classical radial artery group (1.4% vs. 8.6%, P=0.024). The postoperative compression time in the distal radial artery group was significantly shorter than that in the classical radial artery group ((291.6±10.5) min vs. (343.5±9.8) min, P=0.047). There was no statistically significant difference in the incidence of radial artery spasm, local hematoma, and aneurysm between the two groups (P>0.05). Conclusions: The distal radial artery approach has a lower radial artery occlusion rate, shorter compression time, and better safety. It can be used as a new approach for emergency PCI in elderly patients with STEMI for clinical application.
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Affiliation(s)
- H Wang
- Clinical School of Cardiovascular Disease, Tianjin Medical University, Tianjin 300457, China Heart Center, the Third Central Hospital of Tianjin, Tianjin 300170, China
| | - N Yang
- TEDA International Cardiovascular Hospital, Tianjin 300457, China
| | - Y W Liu
- Heart Center, the Third Central Hospital of Tianjin, Tianjin 300170, China
| | - Y M Li
- TEDA International Cardiovascular Hospital, Tianjin 300457, China
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Xiao Y, Jin X, Jia L, Li J, Zhang B, Geng X, Ye L, Zhang AY, Gu Y, Feng ZG. Long-term observation of polycaprolactone small-diameter vascular grafts with thickened outer layer and heparinized inner layer in rabbit carotid arteries. Biomed Mater 2024; 19:035018. [PMID: 38430567 DOI: 10.1088/1748-605x/ad2f6b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 03/01/2024] [Indexed: 03/04/2024]
Abstract
In our previous study, the pristine bilayer small-diameterin situtissue engineered vascular grafts (pTEVGs) were electrospun from a heparinized polycaprolactone (PCL45k) as an inner layer and a non-heparinized PCL80k as an outer layer in the thickness of about 131 μm and 202 μm, respectively. However, the hydrophilic enhancement of inner layer stemmed from the heparinization accelerated the degradation of grafts leading to the early formation of arterial aneurysms in a period of 3 months, severely hindering the perennial observation of the neo-tissue regeneration, host cell infiltration and graft remodeling in those implanted pTEVGs. Herein to address this drawback, the thickness of the outer layers was increased with PCL80k to around 268 μm, while the inner layer remained unchangeable. The thickened TEVGs named as tTEVGs were evaluated in six rabbits via a carotid artery interpositional model for a period of 9 months. All the animals kept alive and the grafts remained patent until explantation except for one whose one side of arterial blood vessels was occluded after an aneurysm occurred at 6 months. Although a significant degradation was observed in the implanted grafts at 9 month, the occurrence of aneurysms was obviously delayed compared to pTEVGs. The tissue stainings indicated that the endothelial cell remodeling was substantially completed by 3 months, while the regeneration of elastin and collagen remained smaller and unevenly distributed in comparison to autologous vessels. Additionally, the proliferation of macrophages and smooth muscle cells reached the maximum by 3 months. These tTEVGs possessing a heparinized inner layer and a thickened outer layer exhibited good patency and significantly delayed onset time of aneurysms.
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Affiliation(s)
- Yonghao Xiao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Xin Jin
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Liujun Jia
- Beijing Key Laboratory of Pre-clinic Research and Evaluation for Cardiovascular Implant Materials, Fuwai Hospital National Cardiovascular Center, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Jubo Li
- Beijing Key Laboratory of Pre-clinic Research and Evaluation for Cardiovascular Implant Materials, Fuwai Hospital National Cardiovascular Center, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Baojie Zhang
- Beijing Key Laboratory of Pre-clinic Research and Evaluation for Cardiovascular Implant Materials, Fuwai Hospital National Cardiovascular Center, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Xue Geng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Ai-Ying Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Yongquan Gu
- Department of Vascular Surgery, Xuanwu Hospital and Institute of Vascular Surgery, Capital Medical University, Beijing, People's Republic of China
| | - Zeng-Guo Feng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, People's Republic of China
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Li J, Sun F, Zhu D, Hou Y, Cheng G, Wang P, Jin X, Zhou W, Sun X, Li Z, Liu T. Deficiency of peripheral CLA + Tregs and clinical relevance in Behcet's syndrome. Arthritis Res Ther 2024; 26:76. [PMID: 38515127 PMCID: PMC10956224 DOI: 10.1186/s13075-024-03306-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/10/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Autoimmune responses have been suggested to involvement in patients with Behcet's syndrome (BS). There has been growing attention towards the roles of cutaneous lymphocyte antigen (CLA)+ regular T cells (Tregs) in autoimmune diseases. The role of CLA+ Tregs in BS is still uncertain. This study aims to clarify the impact of CLA+ Tregs on BS. METHODS We collected peripheral blood from a total of 107 patients with BS and 114 healthy controls (HCs). The number of CLA+ Tregs, natural killer (NK) cells, B cells, and several subtypes of CD4+ T cells were detected using flow cytometry and compared between patients and HCs. RESULTS The absolute number and proportion of CLA+ Tregs among CD4+ T lymphocytes and CD4+ Tregs were lower in patients with BS than in HCs. CLA+ Tregs were positively related with NK cells (r = 0.500, P < 0.001) and B cells (r = 0.470, P < 0.001) and negatively related with effector T cells (r=-0.402, P < 0.001) in patients with BS. Patients with BS and arterial aneurysms had CLA+ Treg cell deficiency. A decreased proportion of CLA+ Tregs was associated with arterial aneurysms in patients with BS. The proportion of CLA+ Tregs in patients with BS increased with corticosteroids and immunosuppressants. CONCLUSION CLA+ Tregs decrease in association with arterial aneurysm in patients with BS. CLA+ Tregs may be a predictor of response to BS treatment.
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Affiliation(s)
- Jiachen Li
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Feng Sun
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Danxue Zhu
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Yuke Hou
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Gong Cheng
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Ping Wang
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Xu Jin
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Wenyan Zhou
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Xiaolin Sun
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China
| | - Zhanguo Li
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China.
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China.
| | - Tian Liu
- Department of Rheumatology and Immunology, PKUPH, Beijing, 100044, China.
- Beijing Key Laboratory for Rheumatism Mechanism and Immune Diagnosis (BZ0135), Beijing, 100044, China.
- Shijiazhuang People's Hospital, Shijiazhuang, 050030, China.
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Gaye B, Vignac M, Gådin JR, Ladouceur M, Caidahl K, Olsson C, Franco-Cereceda A, Eriksson P, Björck HM. Predictive machine learning models for ascending aortic dilatation in patients with bicuspid and tricuspid aortic valves undergoing cardiothoracic surgery: a prospective, single-centre and observational study. BMJ Open 2024; 14:e067977. [PMID: 38508639 PMCID: PMC10961501 DOI: 10.1136/bmjopen-2022-067977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/14/2024] [Indexed: 03/22/2024] Open
Abstract
OBJECTIVES The objective of this study was to develop clinical classifiers aiming to identify prevalent ascending aortic dilatation in patients with bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV). DESIGN AND SETTING A prospective, single-centre and observational cohort. PARTICIPANTS The study involved 543 BAV and 491 TAV patients with aortic valve disease and/or ascending aortic dilatation, excluding those with coronary artery disease, undergoing cardiothoracic surgery at the Karolinska University Hospital (Sweden). MAIN OUTCOME MEASURES Predictors of high risk of ascending aortic dilatation (defined as ascending aorta with a diameter above 40 mm) were identified through the application of machine learning algorithms and classic logistic regression models. EXPOSURES Comprehensive multidimensional data, including valve morphology, clinical information, family history of cardiovascular diseases, prevalent diseases, demographic details, lifestyle factors, and medication. RESULTS BAV patients, with an average age of 60.4±12.4 years, showed a higher frequency of aortic dilatation (45.3%) compared with TAV patients, who had an average age of 70.4±9.1 years (28.9% dilatation, p <0.001). Aneurysm prediction models for TAV patients exhibited mean area under the receiver-operating-characteristic curve (AUC) values above 0.8, with the absence of aortic stenosis being the primary predictor, followed by diabetes and high-sensitivity C reactive protein. Conversely, prediction models for BAV patients resulted in AUC values between 0.5 and 0.55, indicating low usefulness for predicting aortic dilatation. Classification results remained consistent across all machine learning algorithms and classic logistic regression models. CONCLUSION AND RECOMMENDATION Cardiovascular risk profiles appear to be more predictive of aortopathy in TAV patients than in patients with BAV. This adds evidence to the fact that BAV-associated and TAV-associated aortopathy involves different pathways to aneurysm formation and highlights the need for specific aneurysm preventions in these patients. Further, our results highlight that machine learning approaches do not outperform classical prediction methods in addressing complex interactions and non-linear relations between variables.
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Affiliation(s)
- Bamba Gaye
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Maxime Vignac
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jesper R Gådin
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Kenneth Caidahl
- Clinical Physiology Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Christian Olsson
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Anders Franco-Cereceda
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Per Eriksson
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Hanna M Björck
- Cardiovascular Medicine Unit, Center for Molecular Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
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11
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Shi X, Xue Y, Wu H, Shen C, Zhong L, Lei J, Xia Z, Yang Y, Zhu J. Targeting myeloperoxidase to stabilize unruptured aneurysm: an imaging-guided approach. BMC Cardiovasc Disord 2024; 24:169. [PMID: 38509468 PMCID: PMC10953282 DOI: 10.1186/s12872-024-03822-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 02/28/2024] [Indexed: 03/22/2024] Open
Abstract
Inflammation plays a key role in pathogenesis and rupture of aneurysms. Non-invasively and dynamically monitoring aneurysm inflammation is critical. This study evaluated myeloperoxidase (MPO) as an imaging biomarker and therapeutic target for aneurysm inflammation using an elastase-induced rabbit model treated with or without 4-aminobenzoic acid hydrazide (ABAH), an irreversible inhibitor of MPO. Myeloperoxidase-sensitive magnetic resonance imaging (MRI) using Mn-TyrEDTA, a peroxidase activity-dependent contrast agent, revealed weak contrast enhancement in contralateral arteries and decreased contrast enhancement in aneurysm walls with ABAH treatment, indicating MPO activity decreased and inflammation mitigated. This was supported by reduced immune cell infiltration, matrix metalloproteinases (MMP-2 and - 9) activity, ROS production and arterial wall destruction on histology. Finally, the aneurysm expansion rate remained < 50% throughout the study in the ABAH(+) group, but increased gradually in the ABAH(-) group. Our results suggest that inhibition of MPO attenuated inflammation and expansion of experimental aneurysm and MPO-sensitive MRI showed promise as a noninvasive tool for monitoring aneurysm inflammation.
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Affiliation(s)
- Xingchi Shi
- Medical Imaging Key Laboratory of Sichuan province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China
- Department of Cardiovascular disease, School of Clinical Medicine, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China
| | - Yuan Xue
- Medical Imaging Key Laboratory of Sichuan province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Fujiang Road 234, Nanchong City, 637000, Sichuan, China
| | - Huiyu Wu
- Medical Imaging Key Laboratory of Sichuan province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China
- School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, 637000, Sichuan, China
| | - Chengyi Shen
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Fujiang Road 234, Nanchong City, 637000, Sichuan, China
| | - Lei Zhong
- Medical Imaging Key Laboratory of Sichuan province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China
| | - Jun Lei
- School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, 637000, Sichuan, China
| | - Zhiyang Xia
- Institute of Basic Medicine and Forensic Medicine, North Sichuan Medical College, Fujiang Road 234, Nanchong City, 637000, Sichuan, China.
| | - Ying Yang
- Medical Imaging Key Laboratory of Sichuan province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China.
- Department of Cardiovascular disease, School of Clinical Medicine, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China.
| | - Jiang Zhu
- Medical Imaging Key Laboratory of Sichuan province, Department of Oncology, Affiliated Hospital of North Sichuan Medical College, Maoyuan Road 1, Nanchong City, 637000, Sichuan, China.
- School of Pharmacy, North Sichuan Medical College, Fujiang Road 234, Nanchong City, 637000, Sichuan, China.
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12
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Lodewijkx R, Draijer L, de Ridder R, Eikelenboom MJ, Coert BA, Meeuwes M, Vandertop WP. [Subarachnoid hemorrhage in a young girl]. Ned Tijdschr Geneeskd 2024; 168:D7943. [PMID: 38512273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
BACKGROUND Subarachnoid hemorrhage in children is rare. The most common cause is trauma, followed by an arteriovenous malformation, aneurysm or tumor. CASE DESCRIPTION We describe the case of an 11-year-old girl who developed sudden headache with nausea and vomiting during athletics training. Her neurological exam was normal. With imaging and a lumbar puncture a subarachnoid hemorrhage was diagnosed, based on a ruptured saccular aneurysm of the right middle cerebral artery. Endovascular treatment was unsuccessful, after which the aneurysm was treated surgically. Postoperative recovery was uneventful. Additional tests for underlying conditions were negative. CONCLUSION Also in a child with acute headache, nausea, and vomiting, the diagnosis of a subarachnoid hemorrhage should be considered, even if neurological examination is normal. Expeditious diagnosis and treatment are important in order to prevent rebleeding.
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Affiliation(s)
| | - Laura Draijer
- Dijklander Ziekenhuis, afd. Kindergeneeskunde, Hoorn
| | | | | | - B A Coert
- Amsterdam UMC, afd. Neurochirurgie, Amsterdam
| | - Merel Meeuwes
- Dijklander Ziekenhuis, afd. Kindergeneeskunde, Hoorn
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13
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Asano T, Noma K, Mizoguchi Y, Karakawa S, Okada S. Human STAT1 gain of function with chronic mucocutaneous candidiasis: A comprehensive review for strengthening the connection between bedside observations and laboratory research. Immunol Rev 2024; 322:81-97. [PMID: 38084635 DOI: 10.1111/imr.13300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 03/20/2024]
Abstract
Germline human heterozygous STAT1 gain-of-function (GOF) variants were first discovered a common cause of chronic mucocutaneous candidiasis (CMC) in 2011. Since then, numerous STAT1 GOF variants have been identified. A variety of clinical phenotypes, including fungal, viral, and bacterial infections, endocrine disorders, autoimmunity, malignancy, and aneurysms, have recently been revealed for STAT1 GOF variants, which has led to the expansion of the clinical spectrum associated with STAT1 GOF. Among this broad range of complications, it has been determined that invasive infections, aneurysms, and malignancies are poor prognostic factors for STAT1 GOF. The effectiveness of JAK inhibitors as a therapeutic option has been established, although further investigation of their long-term utility and side effects is needed. In contrast to the advancements in treatment options, the precise molecular mechanism underlying STAT1 GOF remains undetermined. Two primary hypotheses for this mechanism involve impaired STAT1 dephosphorylation and increased STAT1 protein levels, both of which are still controversial. A precise understanding of the molecular mechanism is essential for not only advancing diagnostics but also developing therapeutic interventions. Here, we provide a comprehensive review of STAT1 GOF with the aim of establishing a stronger connection between bedside observations and laboratory research.
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Affiliation(s)
- Takaki Asano
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
- Department of Genetics and Cell Biology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Kosuke Noma
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
| | - Yoko Mizoguchi
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
| | - Shuhei Karakawa
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
| | - Satoshi Okada
- Department of Pediatrics, Hiroshima University Graduate School of Biomedical and Health Science, Hiroshima, Japan
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14
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Doobin D, Sharma T, Horowitz J. RUPTURED RETINAL ARTERIAL MACRO ANEURYSMS ASSOCIATED WITH HEMORRHAGIC BACILLARY LAYER DETACHMENTS. Retin Cases Brief Rep 2024; 18:269-273. [PMID: 36730461 PMCID: PMC10898541 DOI: 10.1097/icb.0000000000001371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND/PURPOSE Bacillary layer detachments (BALAD) are a recently recognized form of retinal detachment involving a splitting of photoreceptors at the inner segment myoid zone, with separation of the external limiting membrane and ellipsoid zone on optical coherence tomography (OCT). A growing number of disease processes are recognized to cause BALAD, and here we present three of the first cases of hemorrhagic retinal artery macroaneurysms that resulted in BALAD. METHODS A retrospective review of three patients who presented for acute, painless, monocular vision loss was performed. Multimodal imaging including fundus photography and OCT are included in this analysis. RESULTS Three elderly female patients, all with a history of hypertension, presented with ruptured macroaneurysms involving the macula. All three patients had evidence of BALAD on OCT. Various management strategies were used. CONCLUSION Hemorrhagic retinal arterial macroaneurysms can be associated with BALAD, observed best on OCT. This is most likely secondary to the rapid accumulation of intraretinal fluid during the hemorrhage, which leads to an avulsion at the inner segment myoid zone-a site of inherent structural weakness in the photoreceptors. Visual recovery may be improved in instances of hemorrhagic macroaneurysms associated with BALAD, similar to other disease entities where BALAD occurs, although further research is needed.
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Affiliation(s)
- David Doobin
- Department of Ophthalmology, Columbia University, New York, New York; and
- Department of Ophthalmology, Mass Eye and Ear, Boston, Massachusetts
| | - Tarun Sharma
- Department of Ophthalmology, Columbia University, New York, New York; and
| | - Jason Horowitz
- Department of Ophthalmology, Columbia University, New York, New York; and
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15
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Xie Y, Zou Y. Bilateral Eggshell-like Internal Iliac Artery Aneurysms. Radiology 2024; 310:e232524. [PMID: 38501947 DOI: 10.1148/radiol.232524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Affiliation(s)
- Yong Xie
- From the Department of Interventional Radiology and Vascular Surgery, Peking University First Hospital, No 8 Xishiku St, Xicheng District, Beijing 100034, China
| | - Yinghua Zou
- From the Department of Interventional Radiology and Vascular Surgery, Peking University First Hospital, No 8 Xishiku St, Xicheng District, Beijing 100034, China
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16
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Yue L, Anqi X, Yi L. Vasculitis with hypereosinophilia caused by parasitic coinfection in a patient after aneurysm clipping. Asian J Surg 2024; 47:1477-1478. [PMID: 38072699 DOI: 10.1016/j.asjsur.2023.11.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/24/2023] [Indexed: 03/13/2024] Open
Affiliation(s)
- Li Yue
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Xiao Anqi
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Liu Yi
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China; West China Brain Research Centre, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.
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17
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Molinari I, Deorsola L, Ferroni F, Tumbarello R, Napoleone CP. [Complex right cervical aortic arch repair: less is more]. G Ital Cardiol (Rome) 2024; 25:176-178. [PMID: 38410899 DOI: 10.1714/4209.42004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Cervical aortic arch is a rare malformation that often has anatomical abnormalities of the supra-aortic trunks and may also be associated with aortic stenosis, aneurysms, or cardiac malformations. To correct them, symptomatic patients undergo surgery, which usually consists of a prosthetic graft repair, aortoplasty patch, or an end-to-end anastomosis. In addition, circulatory arrest and deep hypothermia are often required, as in aortic arch surgery. We report the case of a 13-year-old patient who underwent correction of a right cervical aortic arch stenosis with a post-stenotic aneurysm between the origin of the right carotid artery and the right subclavian artery. The anatomy of the aortic branches was abnormal. The surgical procedure consisted of an extensive resection with direct end-to-end anastomosis, without the use of a prosthetic graft, using moderate hypothermic cardiopulmonary bypass and without circulatory arrest.
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Affiliation(s)
- Isabella Molinari
- S.C. Cardiochirurgia Pediatrica e delle Cardiopatie Congenite, Ospedale Infantile Regina Margherita, Città della Salute e della Scienza, Torino - S.C.U. Cardiochirurgia, Città della Salute e della Scienza, Torino
| | - Luca Deorsola
- S.C. Cardiochirurgia Pediatrica e delle Cardiopatie Congenite, Ospedale Infantile Regina Margherita, Città della Salute e della Scienza, Torino
| | - Francesca Ferroni
- S.C. Cardiologia Pediatrica e delle Cardiopatie Congenite, Ospedale Infantile Regina Margherita, Città della Salute e della Scienza, Torino
| | - Roberto Tumbarello
- Unità di Cardiologia Pediatrica e Cardiopatie Congenite, Azienda Ospedaliera "G. Brotzu", Cagliari
| | - Carlo Pace Napoleone
- S.C. Cardiochirurgia Pediatrica e delle Cardiopatie Congenite, Ospedale Infantile Regina Margherita, Città della Salute e della Scienza, Torino
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18
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Anglese S, Varrica A, Saracino A, Conti M, Frigiola A, Lo Rito M. Unusual Aneurysm of a Cervical Aortic Arch: Surgical Repair Improves Fluid Dynamics. World J Pediatr Congenit Heart Surg 2024; 15:224-226. [PMID: 37853733 PMCID: PMC10949141 DOI: 10.1177/21501351231196516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/27/2023] [Indexed: 10/20/2023]
Abstract
The cervical aortic arch is a rare congenital vascular abnormality related to the anomalous development of the aortic arch. We present the case of a 6-year-old patient with a large aneurysmal cervical aortic arch who underwent surgical correction and arch reconstruction. Surgical repair was indicated based on the risk of progressive dilation and rupture, aiming to restore correct geometry and hemodynamics. We evaluated preoperative and postoperative hemodynamics using computational fluid dynamics simulations, and we also identified, within the repaired region, an area that remains affected by greater turbulent flow, requiring follow-up surveillance.
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Affiliation(s)
- Serena Anglese
- 3D and Computer Simulation Laboratory, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Alessandro Varrica
- Department of Congenital Cardiac Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Antonio Saracino
- Department of Pediatric and Adult Congenital Cardiology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Michele Conti
- Department of Civil Engineering and Architecture (DICAr), University of Pavia, Pavia, Italy
| | - Alessandro Frigiola
- Department of Congenital Cardiac Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Mauro Lo Rito
- Department of Congenital Cardiac Surgery, IRCCS Policlinico San Donato, San Donato Milanese, Italy
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19
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Li JJ, Wang XP, Wang QN, Bao XY, Guo QB, Kong ZQ, Gao G, Wang MJ, Liu SM, Fu HG, Zhang Q, Duan L. Long-term outcomes after conservative and EDAS treatment for 111 elderly patients with moyamoya disease: longitudinal and cross-sectional study. J Neurosurg 2024; 140:800-808. [PMID: 37724788 DOI: 10.3171/2023.7.jns231060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/11/2023] [Indexed: 09/21/2023]
Abstract
OBJECTIVE This study aimed to explore the clinical features of moyamoya disease (MMD) and the efficacy of encephaloduroarteriosynangiosis (EDAS) in elderly patients with MMD and to identify the risk factors for long-term stroke events. METHODS Clinical data were retrospectively collected on elderly patients with MMD (age ≥ 60 years) who had been treated at the authors' center from May 2007 to December 2017. Clinical features, angiographic findings, and long-term outcomes (> 5-year follow-up) were analyzed. Cox regression analysis was performed to determine the risk factors for postoperative stroke events. Long-term stroke events were analyzed using Kaplan-Meier curves. RESULTS The mean age at symptom onset was 62.9 ± 3.0 years among 111 elderly patients with MMD. Vascular comorbidities were present in 80 (72.1%) patients. The ratio of female to male patients was 1:1.2. Familial MMD was found in 7 (6.3%) patients. Cerebral ischemia was the most common clinical manifestation observed in 82 (73.9%) patients. Most patients (59.5%) presented with Suzuki stages 5 and 6 MMD, and 29 (26.1%) patients presented with stenosis or occlusion of the posterior circulation. Unilateral MMD was present in 17 (15.3%) patients. Among the 58 (52.3%) patients who underwent EDAS, 28 (48.3%) and 30 (51.7%) underwent bilateral and unilateral surgeries, respectively. Overall, 53 (47.7%) patients were treated conservatively using internal medicine. After a median follow-up duration of 8.2 years, stroke incidence in the EDAS and conservative treatment groups was respectively 17.2% (7 and 3 cases of cerebral infarction and hemorrhage, respectively) and 49.1% (22 and 4 cases of cerebral infarction and hemorrhage, respectively). The stroke incidence rate was higher in the conservative group than in the EDAS group, with a statistically significant difference (p = 0.001) according to results of the Kaplan-Meier analysis. The identified predictor of postoperative stroke events was initial hemorrhage in the EDAS group and advanced age, aneurysm, and initial ischemia in the conservative treatment group. CONCLUSIONS The postoperative long-term stroke rate among elderly patients with MMD was lower in the EDAS group than in the conservative treatment group. Long-term stroke events were associated with advanced age, aneurysm, and initial ischemia after conservative treatment and only initial hemorrhage after EDAS.
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Affiliation(s)
- Jing-Jie Li
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - Xiao-Peng Wang
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - Qian-Nan Wang
- 3Department of Neurosurgery, The Eighth Medical Center, Chinese PLA General Hospital, Beijing; and
| | - Xiang-Yang Bao
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - Qing-Bao Guo
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | | | - Gan Gao
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - Min-Jie Wang
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - Si-Meng Liu
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - He-Guan Fu
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
| | - Qian Zhang
- 4Department of Neurosurgery, The Fifth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Lian Duan
- 1Medical School of Chinese PLA, Beijing
- 2Department of Neurosurgery, The First Medical Center, Chinese PLA General Hospital, Beijing
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20
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Thilak S, Brown P, Whitehouse T, Gautam N, Lawrence E, Ahmed Z, Veenith T. Diagnosis and management of subarachnoid haemorrhage. Nat Commun 2024; 15:1850. [PMID: 38424037 PMCID: PMC10904840 DOI: 10.1038/s41467-024-46015-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024] Open
Abstract
Aneurysmal subarachnoid haemorrhage (aSAH) presents a challenge to clinicians because of its multisystem effects. Advancements in computed tomography (CT), endovascular treatments, and neurocritical care have contributed to declining mortality rates. The critical care of aSAH prioritises cerebral perfusion, early aneurysm securement, and the prevention of secondary brain injury and systemic complications. Early interventions to mitigate cardiopulmonary complications, dyselectrolytemia and treatment of culprit aneurysm require a multidisciplinary approach. Standardised neurological assessments, transcranial doppler (TCD), and advanced imaging, along with hypertensive and invasive therapies, are vital in reducing delayed cerebral ischemia and poor outcomes. Health care disparities, particularly in the resource allocation for SAH treatment, affect outcomes significantly, with telemedicine and novel technologies proposed to address this health inequalities. This article underscores the necessity for comprehensive multidisciplinary care and the urgent need for large-scale studies to validate standardised treatment protocols for improved SAH outcomes.
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Affiliation(s)
- Suneesh Thilak
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, B15 2GW, UK
| | - Poppy Brown
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, B15 2GW, UK
| | - Tony Whitehouse
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, B15 2GW, UK
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
| | - Nandan Gautam
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, B15 2GW, UK
| | - Errin Lawrence
- University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, B15 2GW, UK
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
| | - Zubair Ahmed
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK
- Centre for Trauma Sciences Research, University of Birmingham, Birmingham, B15 2TT, UK
| | - Tonny Veenith
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, B15 2TT, UK.
- Centre for Trauma Sciences Research, University of Birmingham, Birmingham, B15 2TT, UK.
- Department of Critical Care Medicine and Anaesthesia, The Royal Wolverhampton NHS Foundation Trust, New Cross Hospital, Wolverhampton, WV10 0QP, UK.
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21
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Dorrepaal DJ, Goedegebuure WJ, Smagge L, van der Steen M, van der Lugt A, Hokken-Koelega ACS. Cerebrovascular Abnormalities in Adults Born SGA at 12 Years After Growth Hormone Cessation Compared to Controls. J Clin Endocrinol Metab 2024; 109:e1185-e1193. [PMID: 37855389 PMCID: PMC10876403 DOI: 10.1210/clinem/dgad622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/04/2023] [Accepted: 10/17/2023] [Indexed: 10/20/2023]
Abstract
CONTEXT Increased cerebrovascular morbidity was reported in adults born small for gestational age (SGA) who were treated with growth hormone (GH) during childhood compared to the general population. However, previous studies did not have an appropriate control group, which is a major limitation. OBJECTIVE To study cerebrovascular abnormalities (aneurysms, previous intracerebral hemorrhages and microbleeds) using magnetic resonance imaging (MRI) in adults born SGA at 12 years after cessation of childhood GH treatment (SGA-GH) compared to appropriate controls. METHODS In this single-center, prospective study, brain MRIs were performed between May 2016 and December 2020 on a 3T MRI system. MRI images were scored by 2 neuroradiologists who were blinded to patient groupings. Participants included adults born SGA previously treated with GH and 3 untreated control groups: adults born SGA with persistent short stature (SGA-S), adults born SGA with spontaneous catch-up growth to a normal height (SGA-CU) and adults born appropriate for gestational age with a normal height (AGA). The intervention was long-term GH treatment during childhood and the main outcome measure was cerebrovascular abnormalities. RESULTS A total of 301 adults were investigated. Aneurysms were found in 6 adults: 3 (3.6%) SGA-GH, 1 (2.9%) SGA-S and 2 (2.2%) AGA adults, without differences between SGA-GH adults and the controls. Previous intracerebral hemorrhages were only found in 2 SGA-S adults (4.8%). Microbleeds were found in 17 adults: 4 (4.3%) SGA-GH, 4 (9.5%) SGA-S, 3 (4.3%) SGA-CU and 6 (6.3%) AGA adults, without differences between SGA-GH adults and the controls. CONCLUSION Our findings suggest that SGA-GH adults at 12 years after GH cessation have no increased prevalence of cerebrovascular abnormalities compared to appropriate controls. Further research is needed to confirm our findings.
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Affiliation(s)
- Demi Justine Dorrepaal
- Department of Pediatrics, Erasmus Medical Center-Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
| | - Wesley Jim Goedegebuure
- Department of Pediatrics, Erasmus Medical Center-Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
| | - Lucas Smagge
- Department of Radiology, Erasmus Medical Center, 3015 CN Rotterdam, The Netherlands
| | - Manouk van der Steen
- Department of Pediatrics, Erasmus Medical Center-Sophia Children's Hospital, 3015 CN Rotterdam, The Netherlands
| | - Aad van der Lugt
- Department of Radiology, Erasmus Medical Center, 3015 CN Rotterdam, The Netherlands
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Chien A, Tang H, Jagessar B, Chang KW, Peng N, Nael K, Salamon N. AI-Assisted Summarization of Radiologic Reports: Evaluating GPT3davinci, BARTcnn, LongT5booksum, LEDbooksum, LEDlegal, and LEDclinical. AJNR Am J Neuroradiol 2024; 45:244-248. [PMID: 38238092 DOI: 10.3174/ajnr.a8102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/09/2023] [Indexed: 02/09/2024]
Abstract
BACKGROUND AND PURPOSE The review of clinical reports is an essential part of monitoring disease progression. Synthesizing multiple imaging reports is also important for clinical decisions. It is critical to aggregate information quickly and accurately. Machine learning natural language processing (NLP) models hold promise to address an unmet need for report summarization. MATERIALS AND METHODS We evaluated NLP methods to summarize longitudinal aneurysm reports. A total of 137 clinical reports and 100 PubMed case reports were used in this study. Models were 1) compared against expert-generated summary using longitudinal imaging notes collected in our institute and 2) compared using publicly accessible PubMed case reports. Five AI models were used to summarize the clinical reports, and a sixth model, the online GPT3davinci NLP large language model (LLM), was added for the summarization of PubMed case reports. We assessed the summary quality through comparison with expert summaries using quantitative metrics and quality reviews by experts. RESULTS In clinical summarization, BARTcnn had the best performance (BERTscore = 0.8371), followed by LongT5Booksum and LEDlegal. In the analysis using PubMed case reports, GPT3davinci demonstrated the best performance, followed by models BARTcnn and then LEDbooksum (BERTscore = 0.894, 0.872, and 0.867, respectively). CONCLUSIONS AI NLP summarization models demonstrated great potential in summarizing longitudinal aneurysm reports, though none yet reached the level of quality for clinical usage. We found the online GPT LLM outperformed the others; however, the BARTcnn model is potentially more useful because it can be implemented on-site. Future work to improve summarization, address other types of neuroimaging reports, and develop structured reports may allow NLP models to ease clinical workflow.
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Affiliation(s)
- Aichi Chien
- From the Department of Radiological Science (A.C., H.T., B.J., K.N., N.S.), David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Hubert Tang
- From the Department of Radiological Science (A.C., H.T., B.J., K.N., N.S.), David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Bhavita Jagessar
- From the Department of Radiological Science (A.C., H.T., B.J., K.N., N.S.), David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Kai-Wei Chang
- Department of Computer Science (K.C., N.P.), University of California, Los Angeles, Los Angeles, California
| | - Nanyun Peng
- Department of Computer Science (K.C., N.P.), University of California, Los Angeles, Los Angeles, California
| | - Kambiz Nael
- From the Department of Radiological Science (A.C., H.T., B.J., K.N., N.S.), David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Noriko Salamon
- From the Department of Radiological Science (A.C., H.T., B.J., K.N., N.S.), David Geffen School of Medicine at UCLA, Los Angeles, California
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23
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Baykan A, Kum YE, Yılmazer MM, Varan C, Yakut K, Sert A, Öztunç F, Öncül M, Uç D, Başpınar O, Pamukçu Ö, Murat M, Tanıdır İC, Alkan G, Murt NU, Akın A, Karakurt C, Şahin DA, Doğan A, Duman D, Öztürk E, Coşkun Yİ, Türe M, Temel MT, Elkıran Ö. One-Year Follow-Up Results of MIS-C Patients with Coronary Artery Involvement: A Multi-center Study. Pediatr Cardiol 2024; 45:282-291. [PMID: 38159144 DOI: 10.1007/s00246-023-03364-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 11/26/2023] [Indexed: 01/03/2024]
Abstract
Multisystem inflammatory syndrome (MIS-C) in children is a rare complication of SARS-CoV-2 infection. Knowing the course of the affected or unaffected coronary arteries in the patients under follow-up is important in terms of defining the long-term prognosis of the disease and determining the follow-up plan. This is a multicenter and retrospective study. The data were obtained from nine different centers. Between May 2020 and August 2022, 68 of 790 patients had coronary artery involvement. One-year echocardiographic data of 67 of 789 MIS-C patients with coronary artery involvement were analyzed. Existing pathologies of the coronary arteries were grouped as increased echogenicity, dilatation and aneurysm according to Z scores, and their changes over a 1-year period were determined. The data of all three groups are defined as frequency. SPSS Statistics version 22 was used to evaluate the data. In our study, aneurysm was observed in 16.4%, dilatation in 68.7% and increased echogenicity in 13.4% of the patients. All of the patients with involvement in the form of increased echogenicity recovered without sequelae by the end of the first month. No progression to aneurysm was observed in any of the patients with dilatation. No new-onset involvement was observed in patients with previously healthy coronary arteries during the convalescent period. In addition, from the sixth month follow-up period, there was no worsening in the amount of dilatation in any of the patients. At least 94% of the patients who completed the 12th month control period returned to normal.
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Affiliation(s)
- Ali Baykan
- Department of Pediatric Cardiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Yunus Emre Kum
- Department of Pediatric Cardiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
| | - Murat Muhtar Yılmazer
- Department of Pediatric Cardiology, Dr. Behcet Uz Pediatric Diseases and Surgery Training and Research Hospital, University of Health Sciences, İzmir, Turkey
| | - Celal Varan
- Department of Pediatric Cardiology, Adıyaman Training and Research Hospital, Adıyaman, Turkey
| | - Kahraman Yakut
- Department of Pediatric Cardiology, Istanbul Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
| | - Ahmet Sert
- Department of Pediatric Cardiology, Faculty of Medicine, Selçuk University, Konya, Turkey
| | - Funda Öztunç
- Department of Pediatric Cardiology, Faculty of Medicine, Istanbul University Cerrahpaşa, Istanbul, Turkey
| | - Mehmet Öncül
- Department of Pediatric Cardiology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Duygu Uç
- Department of Pediatric Cardiology, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
| | - Osman Başpınar
- Department of Pediatric Cardiology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Özge Pamukçu
- Department of Pediatric Cardiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Mehmet Murat
- Department of Pediatric Cardiology, Dr. Behcet Uz Pediatric Diseases and Surgery Training and Research Hospital, University of Health Sciences, İzmir, Turkey
| | - İbrahim Cansaran Tanıdır
- Department of Pediatric Cardiology, Istanbul Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
| | - Gülsüm Alkan
- Department of Pediatric Infectious Disease, Faculty of Medicine, Selçuk University, Konya, Turkey
| | - Nujin Uluğ Murt
- Department of Pediatric Cardiology, Faculty of Medicine, Istanbul University Cerrahpaşa, Istanbul, Turkey
| | - Alper Akın
- Department of Pediatric Cardiology, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
| | - Cemşit Karakurt
- Department of Pediatric Cardiology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Derya Aydın Şahin
- Department of Pediatric Cardiology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Alper Doğan
- Department of Pediatric Cardiology, Batman Training and Research Hospital, Batman, Turkey
| | - Derya Duman
- Department of Pediatric Cardiology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Erkut Öztürk
- Department of Pediatric Cardiology, Istanbul Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
| | - Yusuf İskender Coşkun
- Department of Pediatric Cardiology, Faculty of Medicine, Istanbul University Cerrahpaşa, Istanbul, Turkey
| | - Mehmet Türe
- Department of Pediatric Cardiology, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
| | - Münevver Tuğba Temel
- Department of Pediatric Cardiology, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey
| | - Özlem Elkıran
- Department of Pediatric Cardiology, Faculty of Medicine, İnönü University, Malatya, Turkey
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Costa M, Pierre C, Basamh M, Vivanco-Suarez J, Baldoncini M, Monteith SJ. Novel Technique of Head-Mounted Augmented Reality-Assisted Endovascular Neurosurgery: Proof of Concept on a Flow Model. World Neurosurg 2024; 182:99. [PMID: 38030075 DOI: 10.1016/j.wneu.2023.11.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/18/2023] [Accepted: 11/20/2023] [Indexed: 12/01/2023]
Abstract
Augmented reality (AR) is an emerging technology in medicine that is underexplored in the endovascular neurosurgery arena. We describe a novel technique integrating the Hololens 2 head-mounted AR (HMAR) system for navigation of the intracranial circulation and simple coiling of an aneurysm silicone model. Computed tomography angiographies (CTAs) of the silicone models were obtained, simulating the preprocedural CTA obtained for patient treatments. CTA was imported into the 3-dimensional (3D) HMAR system, and a 3D hologram of the circulation was created. Using the right common carotid artery run (performed in the silicon model) as a landmark, the AR hologram was superimposed on the angiography screen (Video 1). A 5-French sheath, intermediate catheter, 0.012-inch microcatheter, and microwire were used for the purely navigational model. The same process was repeated with the aneurysm model, which was navigated with a 0.58 intermediate catheter, 0.17 microcatheter, 0.014 microwire, and 6 × 15 3D-shaped soft coil. The proximal and distal vessels of the flow model were successfully navigated using the AR hologram, which replaced the conventional roadmap. No contrast ¨puffs¨ were needed because the hologram replaced the roadmap from proximal to distal vasculature. The silicon navigational model and aneurysm model were successfully navigated using only the AR 3D model. A coil was deployed in the aneurysm model. Finally, a 3D-360-degree examination of the aneurysmal anatomy was possible during the procedure. The concept of HMAR-assisted cerebral angiography is feasible. We were able to perform the whole intracranial navigation using only the preoperative CTA. Additional refinements and fine-tuning of the registration and alignment of the hologram to the silicon model or anatomy of the patient are needed before this technology can be incorporated into clinical practice. In the meantime, the use of this tool for the training and development of endovascular skills offers valuable educational opportunities. Further advances in this direction aiming to create real 3D roadmaps are needed to decrease contrast use, radiation exposure, and navigation times.
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Affiliation(s)
- Matias Costa
- Cerebrovascular Neurosurgery, Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA.
| | - Clifford Pierre
- Cerebrovascular Neurosurgery, Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA
| | - Mohammed Basamh
- Cerebrovascular Neurosurgery, Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA
| | - Juan Vivanco-Suarez
- Cerebrovascular Neurosurgery, Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA
| | - Matias Baldoncini
- Department of Neurological Surgery, Hospital San Fernando, San Fernando, Argentina
| | - Stephen J Monteith
- Cerebrovascular Neurosurgery, Swedish Neuroscience Institute, Swedish Medical Center, Seattle, Washington, USA
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25
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Jose JT, Tierney ESS. Outpatient Pediatric Cardiology Follow-Up of Patients with Multisystem Inflammatory Syndrome in Children (MIS-C): A Single-Institution, Medium-Term Follow-Up Study. Pediatr Cardiol 2024; 45:401-409. [PMID: 37749261 DOI: 10.1007/s00246-023-03298-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 09/05/2023] [Indexed: 09/27/2023]
Abstract
We are continuing to learn about the multisystem inflammatory syndrome in children (MIS-C) associated with SARS-CoV-2 infection. There are many published studies regarding the acute management of MIS-C; however, there is still much to learn regarding the long-term outcomes of patients with MIS-C. In this study, we report the outcomes of patients admitted at our institution with MIS-C and the follow-up practices in Pediatric Cardiology over the last three years. We included patients who were admitted at Lucile Packard Children's Hospital between January 1, 2020 and October 31, 2022, who met the CDC criteria for MIS-C, and were followed in the Pediatric Cardiology Outpatient Clinic at our institution. There were 25 patients who met our inclusion criteria. Eighteen patients (72%) had their initial follow-up visit within 1-2 weeks of discharge and seven patients (28%) had their initial follow-up visit within 4-6 weeks of discharge. Six patients out of the 25 (24%) had decreased left ventricular ejection fraction (LVEF < 50%) during their hospitalization. No patients had left main coronary artery aneurysm (z-score > 2.5), two patients (8%) had proximal right coronary artery aneurysm (z-score > 2.5), and one patient (4%) had left anterior descending coronary artery aneurysm (z-score > 2.5) during hospitalization. Patients who were admitted with the diagnosis of MIS-C showed normalization of left ventricular dysfunction at their initial follow-up visit as early as 2-4 weeks after discharge. In this cohort of MIS-C patients, a 4-6-week window for the first follow-up visit after discharge seems reasonable.
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Affiliation(s)
- Jerin Tresa Jose
- Division of Pediatric Cardiology, Lucile Packard Children's Hospital, Stanford University Medical Center, 750 Welch Road, Palo Alto, CA, 94304, USA.
| | - Elif Seda Selamet Tierney
- Division of Pediatric Cardiology, Lucile Packard Children's Hospital, Stanford University Medical Center, 750 Welch Road, Palo Alto, CA, 94304, USA
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26
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Li Y, Guo A, Liu J, Tang L, Su L, Liu Z. Myeloid-specific knockout of Notch-1 inhibits MyD88- and TRIF-mediated TLR signaling pathways by regulating oxidative stress-SHP2 axis, thus restraining aneurysm progression. Aging (Albany NY) 2024; 16:1182-1191. [PMID: 38284891 PMCID: PMC10866402 DOI: 10.18632/aging.205392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 11/15/2023] [Indexed: 01/30/2024]
Abstract
OBJECTIVE Notch-1 is a signal regulatory protein with extensive effects in myeloid cells, but its role in aneurysms remains to be fully clarified. In this study, therefore, the aneurysm mouse model with myeloid-specific knockout of Notch-1 was established to observe the role of Notch-1 in aneurysm progression. METHODS AND RESULTS The effect of Notch-1 was assessed by pathological staining and Western blotting. It was found that after myeloid-specific knockout of Notch-1 in the aneurysm mouse model, the area of aneurysms and the macrophage infiltration were significantly reduced, the damage to arterial elastic plates was significantly relieved, and the oxidative stress level significantly declined. The results of Western blotting showed that after myeloid-specific knockout of Notch-1, the levels of oxidative stress-related proteins p22 and p47 in aneurysm tissues significantly declined, accompanied by a significant increase in the protein level of Src homology 2 domain-containing tyrosine phosphatase-2 (SHP2). In addition, the levels of phosphorylated myeloid differential protein-88 (MyD88), TIR domain-containing adaptor-inducing interferon-β (TRIF) and nuclear factor-κB (NF-κB), and inflammatory cytokines interferon-γ (IFN-γ), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) also significantly decreased after myeloid-specific knockout of Notch-1. Following myeloid-specific knockout of Notch-1, the phagocytic capacity of macrophages was enhanced by promoting the SHP2 signaling pathway. CONCLUSION Notch-1 in monocytes/macrophages can activate the Toll-like receptor (TLR)-mediated inflammatory and stress responses by activating oxidative stress and inhibiting the SHP2 protein expression, thus facilitating aneurysm progression.
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Affiliation(s)
- Yu Li
- Department of Cardiovascular Surgery, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Ailin Guo
- Department of Cardiovascular Surgery, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Jianlei Liu
- Department of Cardiovascular Surgery, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Lijuan Tang
- Institute of Prevention and Control of Non-communicable Chronic Diseases, Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - Lide Su
- Department of Cardiovascular Surgery, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Zonghong Liu
- Department of Cardiovascular Surgery, Xiang’an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen 361102, China
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Dimanche A, Bervini D, Miller DR, Schär A, Goldberg J, Raabe A, Dunn AK. Cortical perfusion measurements with laser speckle contrast imaging during adenosine induced cardiac arrest for aneurysm clipping: a case report. Acta Neurochir (Wien) 2024; 166:27. [PMID: 38261093 DOI: 10.1007/s00701-024-05925-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/17/2023] [Indexed: 01/24/2024]
Abstract
Adenosine induced cardiac arrest (AiCA) is one of the methods used to facilitate microsurgical aneurysm clipping by providing more visibility and less pressure in the aneurysmal sac and neighboring vessels. We report the use of laser speckle contrast imaging (LSCI) during AiCA to monitor the changes in pulsation and perfusion on the cortical surface during adenosine induced cardiac arrest for aneurysm clipping surgery. Application of this technology for perfusion monitoring may improve workflow and surgical guidance and provide valuable feedback continuously throughout the procedure. ClinicalTrials.gov identifier: NCT0502840.
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Affiliation(s)
- Alexis Dimanche
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA
| | - David Bervini
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | | | - Andreas Schär
- Department Anaesthesiology & Pain Therapy, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Johannes Goldberg
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Andreas Raabe
- Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Andrew K Dunn
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, USA.
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Autio AH, Paavola J, Tervonen J, Lång M, Elomaa AP, Huuskonen TJ, Huttunen J, Kärkkäinen V, von Und Zu Fraunberg M, Lindgren AE, Koivisto T, Kurola J, Jääskeläinen JE, Kämäräinen OP. Acute evacuation of 54 intracerebral hematomas (aICH) during the microsurgical clipping of a ruptured middle cerebral artery bifurcation aneurysm-illustration of the individual clinical courses and outcomes with a serial brain CT/MRI panel until 12 months. Acta Neurochir (Wien) 2024; 166:17. [PMID: 38231317 PMCID: PMC10794262 DOI: 10.1007/s00701-024-05902-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024]
Abstract
PURPOSE In aneurysmal intracerebral hemorrhage (aICH), our review showed the lack of the patient's individual (i) timeline panels and (ii) serial brain CT/MRI slice panels through the aICH evacuation and neurointensive care until the final brain tissue outcome. METHODS Our retrospective cohort consists of 54 consecutive aICH patients from a defined population who acutely underwent the clipping of a middle cerebral artery bifurcation saccular aneurysm (Mbif sIA) with the aICH evacuation at Kuopio University Hospital (KUH) from 2010 to 2019. We constructed the patient's individual timeline panels since the emergency call and serial brain CT/MRI slice panels through the aICH evacuation and neurointensive care until the final brain tissue outcome. The patients were indicated by numbers (1.-54.) in the pseudonymized panels, tables, results, and discussion. RESULTS The aICH volumes on KUH admission (median 46 cm3) plotted against the time from the emergency call to the evacuation (median 8 hours) associated significantly with the rebleeds (n=25) and the deaths (n=12). The serial CT/MRI slice panels illustrated the aICHs, intraventricular hemorrhages (aIVHs), residuals after the aICH evacuations, perihematomal edema (PHE), delayed cerebral injury (DCI), and in the 42 survivors, the clinical outcome (mRS) and the brain tissue outcome. CONCLUSIONS Regarding aICH evacuations, serial brain CT/MRI panels present more information than words, figures, and graphs. Re-bleeds associated with larger aICH volumes and worse outcomes. Swift logistics until the sIA occlusion with aICH evacuation is required, also in duty hours and weekends. Intraoperative CT is needed to illustrate the degree of aICH evacuation. PHE may evoke uncontrollable intracranial pressure (ICP) in spite of the acute aICH volume reduction.
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Affiliation(s)
- Anniina H Autio
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland.
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland.
| | - Juho Paavola
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Joona Tervonen
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Maarit Lång
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
- Neurointensive Care Unit, Kuopio University Hospital, Kuopio, Finland
| | - Antti-Pekka Elomaa
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Terhi J Huuskonen
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jukka Huttunen
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Virve Kärkkäinen
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
| | - Mikael von Und Zu Fraunberg
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
- Department of Neurosurgery, Oulu University Hospital, Oulu, Finland
- Research Unit of Clinical Medicine, University of Oulu, Oulu, Finland
| | - Antti E Lindgren
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
- Clinical Radiology, Kuopio University Hospital, Kuopio, Finland
| | - Timo Koivisto
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jouni Kurola
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
- Center for Prehospital Emergency Care, Kuopio University Hospital, Kuopio, Finland
| | - Juha E Jääskeläinen
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Olli-Pekka Kämäräinen
- Neurosurgery, NeuroCenter, Kuopio University Hospital, PL 100, 70029, Kuopio, Finland
- Institute of Clinical Medicine, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
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Candy NG, Van Der Veken J, Van Velthoven V. 'What's in a name', a systematic review of the pterional craniotomy for aneurysm surgery and its many modifications with a proposal for simplified nomenclature. Acta Neurochir (Wien) 2024; 166:11. [PMID: 38227061 DOI: 10.1007/s00701-024-05888-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/17/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND The pterional or frontosphenotemporal craniotomy has stood the test of time and continues to be a commonly used method of managing a variety of neurosurgical pathology. Already described in the beginning of the twentieth century and perfected by Yasargil in the 1970s, it has seen many modifications. These modifications have been a normal evolution for most neurosurgeons, tailoring the craniotomy to the patients' specific anatomy and pathology. Nonetheless, an abundance of variations have appeared in the literature. METHODS A search strategy was devised according to the 2020 Preferred Reporting Items of Systematic Reviews and Meta-Analyses (PRISMA) statement. To identify articles investigating the variations in the pterional approach, the following search terms were applied: (pterional OR minipterional OR supraorbital) AND (approach OR craniotomy OR technique). RESULTS In total, 3552 articles were screened with 74 articles being read in full with 47 articles being included for review. Each article was examined according the name of the technique, temporalis dissection technique, craniotomy technique and approach. CONCLUSION This systematic review gives an overview of the different techniques and modifications to the pterional craniotomy since it was initially described. We advocate for the use of a more standardised nomenclature that focuses on the target zone to simplify the management approach to supratentorial aneurysms.
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Affiliation(s)
- Nicholas G Candy
- Department of Surgery - Otolaryngology, Head and Neck Surgery, The University of Adelaide, Basil Hetzel Institute for Translational Research, Woodville South, Adelaide, Australia.
- Department of Neurosurgery, Royal Adelaide Hospital, Adelaide, Australia.
| | - Jorn Van Der Veken
- Department of Neurosurgery, Aalsters Stedelijk Ziekenhuis, Merestraat 80, 9300, Aalst, Belgium
| | - Vera Van Velthoven
- Department of Neurosurgery, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, 1090, Jette, Belgium
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Oliveira LDB, Cieslak PH, Marques GN, Batista S, Andreão FF, Palavani LB, Bocanegra-Becerra JE, Bertani R, Rabelo NN, Welling LC, Figueiredo EG. Maxillary artery utilization in subcranial-intracranial bypass procedures: a comprehensive systematic review and pooled analysis. Neurosurg Rev 2024; 47:41. [PMID: 38206429 DOI: 10.1007/s10143-023-02265-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024]
Abstract
The utilization of the internal maxillary artery (IMAX) in subcranial-intracranial bypass for revascularization in complex aneurysms, tumors, or refractory ischemia shows promise. However, robust evidence concerning its outcomes is lacking. Hence, the authors embarked on a systematic review with pooled analysis to elucidate the efficacy of this approach. We systematically searched PubMed, Embase, and Web of Science databases following PRISMA guidelines. Included articles used the IMAX as a donor vessel for revascularizing an intracranial area and reported at least one of the following outcomes: patency, complications, or clinical data. Favorable outcomes were defined as the absence of neurologic deficits or improvement in the baseline condition. Complications were considered any adverse event directly related to the procedure. Out of 418 retrieved articles, 26 were included, involving 183 patients. Among them, 119 had aneurysms, 41 experienced ischemic strokes (transient or not), 2 had arterial occlusions, and 3 had neoplasia. Furthermore, 91.8% of bypasses used radial artery grafts, and 87.9% revascularized the middle cerebral artery territory. The median average follow-up period was 12 months (0.3-53.1). The post-operation patency rate was 99% (95% CI: 97-100%; I2=0%), while the patency rate at follow-up was 82% (95% CI: 68-96%; I2=77%). Complications occurred in 21% of cases (95% CI: 9-32%; I2=58%), with no significant procedure-related mortality in 0% (95% CI: 0-2%; I2=0%). Favorable outcomes were observed in 88% of patients (95% CI: 81-96%; I2=0%), and only 3% experienced ischemia (95% CI: 0-6%; I2=0%). The subcranial-intracranial bypass with the IMAX shows excellent postoperative patency and considerable favorable clinical outcomes. While complications exist, the procedure carries a minimal risk of mortality. However, long-term patency presents heterogeneous findings, warranting additional research.
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Affiliation(s)
- Leonardo de Barros Oliveira
- Department of Neurosurgery, State University of Ponta Grossa, Uvaranas Campus - General Carlos Cavalcanti Avenue, 4748, Ponta Grossa, Paraná, Brazil.
| | - Pedro Henrique Cieslak
- Department of Neurosurgery, State University of Ponta Grossa, Uvaranas Campus - General Carlos Cavalcanti Avenue, 4748, Ponta Grossa, Paraná, Brazil
| | | | - Sávio Batista
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Filipi Fim Andreão
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | - Leonardo C Welling
- Department of Neurosurgery, State University of Ponta Grossa, Uvaranas Campus - General Carlos Cavalcanti Avenue, 4748, Ponta Grossa, Paraná, Brazil
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Cayron AF, Bejuy O, Vargas MI, Colin DJ, Aoki T, Lövblad KO, Bijlenga P, Kwak BR, Allémann E, Morel S. Time-of-flight and black-blood MRI to study intracranial arteries in rats. Eur Radiol Exp 2024; 8:3. [PMID: 38191711 PMCID: PMC10774247 DOI: 10.1186/s41747-023-00407-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/07/2023] [Indexed: 01/10/2024] Open
Abstract
Intracranial aneurysms (IAs) are usually incidentally discovered by magnetic resonance imaging (MRI). Once discovered, the risk associated with their treatment must be balanced with the risk of an unexpected rupture. Although clinical observations suggest that the detection of contrast agent in the aneurysm wall using a double-inversion recovery black-blood (BB) sequence may point to IA wall instability, the exact meaning of this observation is not understood. Validation of reliable diagnostic markers of IA (in)stability is of utmost importance to deciding whether to treat or not an IA. To longitudinally investigate IA progression and enhance our understanding of this devastating disease, animal models are of great help. The aim of our study was to improve a three-dimensional (3D)-time-of-flight (TOF) sequence and to develop a BB sequence on a standard preclinical 3-T MRI unit to investigate intracranial arterial diseases in rats. We showed that our 3D-TOF sequence allows reliable measurements of intracranial artery diameters, inter-artery distances, and angles between arteries and that our BB sequence enables us to visualize intracranial arteries. We report the first BB-MRI sequence to visualize intracranial arteries in rats using a preclinical 3-T MRI unit. This sequence could be useful for a large community of researchers working on intracranial arterial diseases.Relevance statement We developed a black-blood MRI sequence to study vessel wall enhancement in rats with possible application to understanding IAs instability and finding reliable markers for clinical decision-making.Key points• Reliable markers of aneurysm stability are needed for clinical decision.• Detection of contrast enhancement in the aneurysm wall may be associated with instability.• We developed a black-blood MRI sequence in rats to be used to study vessel wall enhancement of IAs.
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Affiliation(s)
- Anne F Cayron
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, CMU, Rue Michel-Servet 1, CH-1211, Geneva, Switzerland
- Geneva Center for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
| | - Olivia Bejuy
- CIBM Center for BioMedical Imaging, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Small Animal Preclinical Imaging Platform, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Maria Isabel Vargas
- Division of Neuroradiology, Faculty of Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Didier J Colin
- Small Animal Preclinical Imaging Platform, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Tomohiro Aoki
- Department of Pharmacology, Jikei University School of Medicine, Tokyo, Japan
| | - Karl-Olof Lövblad
- Division of Neuroradiology, Faculty of Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Philippe Bijlenga
- Division of Neurosurgery, Department of Clinical Neurosciences, Faculty of Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Brenda R Kwak
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, CMU, Rue Michel-Servet 1, CH-1211, Geneva, Switzerland
- Geneva Center for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Eric Allémann
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
- Small Animal Preclinical Imaging Platform, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sandrine Morel
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, CMU, Rue Michel-Servet 1, CH-1211, Geneva, Switzerland.
- Geneva Center for Inflammation Research, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
- Division of Neurosurgery, Department of Clinical Neurosciences, Faculty of Medicine, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.
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Hansen MA. Evolution of the pterional approach for MCA aneurysm repair. J Clin Neurosci 2024; 119:8-9. [PMID: 37956527 DOI: 10.1016/j.jocn.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 11/06/2023] [Indexed: 11/15/2023]
Affiliation(s)
- Mitchell A Hansen
- Department of Neurosurgery, John Hunter Hospital, New Lambton Heights PO Box 391, New Lambton 2305, AUSTRALIA; University of Newcastle, Newcastle, AUSTRALIA.
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Udupa MC, Saha S, Natarajan S. Numerical simulation of the blood flow through a pre-stenotic aneurysm in coronary artery: effects of varying heart rate. Comput Methods Biomech Biomed Engin 2024; 27:459-477. [PMID: 38146852 DOI: 10.1080/10255842.2023.2297659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/08/2023] [Indexed: 12/27/2023]
Abstract
The left anterior descending artery (LAD) is a significant coronary artery and a facilitator of oxygenated blood to the heart muscles. Thus, any occurrence of an aneurysm in LAD requires immediate medical attention. It is often inclined toward fatality if coupled with a blockage due to stenosis. Given the high relevance of understanding such models, invasive techniques under all parametric circumstances are hard to achieve. So, a theoretical approach with a cost-effective intervention of mathematical modeling becomes essential. In our current work, we analyze the model with the numerical technique of a modified form of SIMPLE pressure-correction based algorithm and perform parametric studies for the flow field with degree of stenosis, degree of aneurysm, heart rate, and distance separating aneurysm and stenosis as parameters. The study reveals a direct proportionality relation between the number of recirculation zones and heart rate through instantaneous streamline plots. Alongside this, the demonstration of an increase in the risk of rupture of the aneurysm with a decrease in the distance between stenosis and aneurysm, using the physical parameters associated with blood flow, is another key finding. Further, we examine the effect of the flow field on heat transfer and the consequent temperature profiles.
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Affiliation(s)
- Mahesh C Udupa
- Department of Mathematics, SAS, VIT Vellore, Tamil Nadu, India
| | - Sunanda Saha
- Centre for Clean Environment, VIT Vellore, Tamil Nadu, India
| | - Sekarapandian Natarajan
- Department of Thermal and Energy, School of Mechanical Engineering, VIT Vellore, Tamil Nadu, India
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Doddamani R, Chandra PS. Intraoperative Rupture of Aneurysms: Better Avoid than Mitigate. Neurol India 2024; 72:2-3. [PMID: 38442992 DOI: 10.4103/neurol-india.neurol-india_79_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/07/2024]
Affiliation(s)
- Ramesh Doddamani
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
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Zamirpour S, Boskovski MT, Pirruccello JP, Pace WA, Hubbard AE, Leach JR, Ge L, Tseng EE. Sex differences in ascending aortic size reporting and growth on chest computed tomography and magnetic resonance imaging. Clin Imaging 2024; 105:110021. [PMID: 37992628 DOI: 10.1016/j.clinimag.2023.110021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/16/2023] [Accepted: 11/02/2023] [Indexed: 11/24/2023]
Abstract
PURPOSE Diameter-based guidelines for prophylactic repair of ascending aortic aneurysms have led to routine aortic evaluation in chest imaging. Despite sex differences in aneurysm outcomes, there is little understanding of sex-specific aortic growth rates. Our objective was to evaluate sex-specific temporal changes in radiologist-reported aortic size as well as sex differences in aortic reporting. METHOD In this cohort study, we queried radiology reports of chest computed tomography or magnetic resonance imaging at an academic medical center from 1994 to 2022, excluding type A dissection. Aortic diameter was extracted using a custom text-processing algorithm. Growth rates were estimated using mixed-effects modeling with fixed terms for sex, age, and imaging modality, and patient-level random intercepts. Sex, age, and modality were evaluated as predictors of aortic reporting by logistic regression. RESULTS This study included 89,863 scans among 46,622 patients (median [interquartile range] age, 64 [52-73]; 22,437 women [48%]). Aortic diameter was recorded in 14% (12,722/89,863 reports). Temporal trends were analyzed in 7194 scans among 1998 patients (age, 68 [60-75]; 677 women [34%]) with ≥2 scans. Aortic growth rate was significantly higher in women (0.22 mm/year [95% confidence interval 0.17-0.28] vs. 0.09 mm/year [0.06-0.13], respectively). Aortic reporting was significantly less common in women (odds ratio, 0.54; 95% CI, 0.52-0.56; p < 0.001). CONCLUSIONS While aortic growth rates were small overall, women had over twice the growth rate of men. Aortic dimensions were much less frequently reported in women than men. Sex-specific standardized assessment of aortic measurements may be needed to address sex differences in aneurysm outcomes.
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Affiliation(s)
- Siavash Zamirpour
- Division of Adult Cardiothoracic Surgery, Department of Surgery, University of California San Francisco, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA; School of Medicine, University of California San Francisco, CA, USA
| | - Marko T Boskovski
- Division of Adult Cardiothoracic Surgery, Department of Surgery, University of California San Francisco, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA
| | - James P Pirruccello
- Division of Cardiology, Department of Medicine, University of California San Francisco, USA; Institute for Human Genetics, University of California San Francisco, USA
| | - William A Pace
- Division of Adult Cardiothoracic Surgery, Department of Surgery, University of California San Francisco, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA; School of Medicine, University of California San Francisco, CA, USA
| | - Alan E Hubbard
- Division of Biostatistics, School of Public Health, University of California Berkeley, USA
| | - Joseph R Leach
- Department of Radiology and Biomedical Imaging, University of California San Francisco, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA
| | - Liang Ge
- Division of Adult Cardiothoracic Surgery, Department of Surgery, University of California San Francisco, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA
| | - Elaine E Tseng
- Division of Adult Cardiothoracic Surgery, Department of Surgery, University of California San Francisco, San Francisco Veterans Affairs Health Care System, San Francisco, CA, USA.
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Rana V, Agarwal A, Arora A, Bansal R, Dogra M, Bhadada SK, Singh N, Gupta V. Predicting visual outcomes following anti-vascular endothelial growth factor treatment for diabetic macular edema. Indian J Ophthalmol 2024; 72:S16-S21. [PMID: 38131536 PMCID: PMC10833155 DOI: 10.4103/ijo.ijo_893_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 12/23/2023] Open
Abstract
PURPOSE To assess the utility of pre-defined imaging biomarkers on optical coherence tomography (OCT) and OCT angiography (OCTA) in patients with diabetic macular edema (DME) following anti-vascular endothelial growth factor (anti-VEGF) therapy in determining visual and anatomical outcomes. METHODS In this prospective, non-randomized, and interventional study, 17 patients with treatment-naive DME were included. OCT biomarkers [size/reflectivity of cysts, disorganization of retinal inner layers, integrity of ellipsoid zone or external limiting membrane, subfoveal serous retinal detachment, hyper-reflective foci (HRF)] and OCTA [vascular density (VD), foveal avascular zone (FAZ), and total micro-aneurysms in superficial capillary plexus and deep capillary plexus (DCP)] were analyzed at baseline and after three monthly intravitreal anti-VEGF injections. Response was defined as a decrease of 10% or more in central macular thickness from the baseline after three injections. RESULTS 13/17 (76.47%) patients were categorized as responders to anti-VEGF therapy. Non-responders had significantly greater hyper-reflectivity of cysts (P = 0.015), larger cystic spaces (P = 0.023), and an increased number of HRF (P = 0.04) at baseline. On OCTA, non-responders showed larger FAZ in DCP (1.35 ± 0.21 versus 1.14 ± 0.28 mm2) (P = 0.042) and lower VD (61.17 ± 0.45 versus 62.73 ± 3.32) in DCP at baseline. At 3 months, the VD increased in responders (63.10 ± 3.42) compared to a decrease in non-responders (60.82 ± 1.13) (P = 0.032). CONCLUSIONS Non-responders show a higher number of micro-aneurysms, larger FAZ, and lower VD in the DCP on OCTA and higher cyst hyper-reflectivity and HRF and larger cystic spaces on OCT imaging.
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Affiliation(s)
- Vipin Rana
- Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Aniruddha Agarwal
- The Eye Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates (UAE)
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Ophthalmology, University of Maastricht Medical Center+, Maastricht, The Netherlands
| | - Atul Arora
- Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Reema Bansal
- Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Mohit Dogra
- Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Sanjay Kumar Bhadada
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Nirbhai Singh
- Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Vishali Gupta
- Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Qian YL, Quan RL, Chen XX, Lin YY, Jing XL, Gu Q, Xiong CM, He JG, Zhi AH. Imaging characteristics and prognostic factors of Behcet's disease with arterial involvement: A long-term follow-up study. Eur J Radiol 2024; 170:111206. [PMID: 37995514 DOI: 10.1016/j.ejrad.2023.111206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/22/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023]
Abstract
PURPOSE To investigate the imaging characteristics and prognostic factors for the long-term survival of Behcet's disease (BD) with arterial involvement. METHODS In this retrospective study, BD patients with arterial involvement were identified from January 2003 to January 2020. Arterial lesions were detected by ultrasonography, traditional arteriography, and/or computed tomography angiography (CTA). Cox proportional hazards regression analyses were performed to identify the prognostic factors. RESULTS Totally, 84 BD patients with arterial involvement were identified (73.8 % males). The mean age at BD diagnosis was 39.1 ± 13.1 years. Arterial involvement was the initial manifestation in 33.3 % of the patients, and the median time from BD diagnosis to arterial involvement was 6 (IQR 1-15.5) years for the rest of patients. Systemic artery involvement and pulmonary artery involvement (PAI) were found in 64 and 27 patients, respectively. Approximately 94.0 % (79/84) of the patients had more than one artery involved concurrently or successively during the course of BD. Aneurysm/dilation was the most prevalent lesion in the aorta (76.0 %), while stenosis/occlusion was the main lesion of the coronary artery (90.9 %) and other aortic branches (74.5 %). Pulmonary hypertension was found in 70.4 % (19/27) of patients with PAI. The 5- and 10-year survival rates of BD patients with arterial involvement were 87.4 % and 84.1 %, respectively. Cardiac involvement (HR: 4.34) and pulmonary artery aneurysm/dilation (HR: 4.89) were independently associated with mortality. CONCLUSIONS Arterial lesions associated with BD usually involve multiple arteries and manifest differently in different types of arteries. Cardiac involvement and pulmonary artery aneurysm/dilation are independent prognostic factors of BD patients with arterial involvement.
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Affiliation(s)
- Yu-Ling Qian
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Rui-Lin Quan
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Xiao-Xi Chen
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Yang-Yi Lin
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Xiao-Li Jing
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Qing Gu
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Chang-Ming Xiong
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Jian-Guo He
- Department of Pulmonary Vascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, State Key Laboratory of Cardiovascular Disease, 100037 Beijing, China
| | - Ai-Hua Zhi
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 100037 Beijing, China; Department of Radiology, Yunnan Fuwai Cardiovascular Hospital, 650000 Kunming, China.
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Dissanayake AS, Ho KM, Phillips TJ, Honeybul S, Hankey GJ. Pre-treatment re-bleeding following aneurysmal subarachnoid hemorrhage: A systematic review of published prediction models with risk of bias and clinical applicability assessment. J Clin Neurosci 2024; 119:102-111. [PMID: 37995407 DOI: 10.1016/j.jocn.2023.10.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/18/2023] [Accepted: 10/29/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Pre-treatment rebleeding following aneurysmal subarachnoid hemorrhage (aSAH) increases the risk of death and a poor neurological outcome. Current guidelines recommend aneurysm treatment "as early as feasible after presentation, preferably within 24 h of onset" to mitigate this risk, a practice termed ultra-early treatment. However, ongoing debate regarding whether ultra-early treatment is independently associated with reduced re-bleeding risk, together with the recognition that re-bleeding occurs even in centres practicing ultra-early treatment due to the presence of other risk-factors has resulted in a renewed need for patient-specific re-bleed risk prediction. Here, we systematically review models which seek to provide patient specific predictions of pre-treatment rebleeding risk. METHODS Following registration on the International prospective register of systematic reviews (PROSPERO) CRD 42023421235; Ovid Medline (Pubmed), Embase and Googlescholar were searched for English language studies between 1st May 2002 and 1st June 2023 describing pre-treatment rebleed prediction models following aSAH in adults ≥18 years. Of 763 unique records, 17 full texts were scrutinised with 5 publications describing 4 models reviewed. We used the semi-automated template of Fernandez-Felix et al. incorporating the Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modelling Studies (CHARMS) checklist and the Prediction model Risk Of Bias ASsessment Tool (PROBAST) for data extraction, risk of bias and clinical applicability assessment. To further standardize risk of bias and clinical applicability assessment, we also used the published explanatory notes for the PROBAST tool and compared the aneurysm treatment practices each prediction model's formulation cohort experienced to a prespecified benchmark representative of contemporary aneurysm treatment practices as outlined in recent evidence-based guidelines and published practice pattern reports from four developed countries. RESULTS Reported model discriminative performance varied between 0.77 and 0.939, however, no single model demonstrated a consistently low risk of bias and low concern for clinical applicability in all domains. Only the score of Darkwah Oppong et al. was formulated using a patient cohort in which the majority of patients were managed in accordance with contemporary, evidence-based aneurysm treatment practices defined by ultra-early and predominantly endovascular treatment. However, this model did not undergo calibration or clinical utility analysis and when applied to an external cohort, its discriminative performance was substantially lower that reported at formulation. CONCLUSIONS No existing prediction model can be recommended for clinical use in centers practicing contemporary, evidence-based aneurysm treatment. There is a pressing need for improved prediction models to estimate and minimize pre-treatment re-bleeding risk.
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Affiliation(s)
- Arosha S Dissanayake
- Department of Neurosurgery, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia.
| | - Kwok M Ho
- Department of Intensive Care, Royal Perth Hospital, Perth, Western Australia, Australia; School of Population Health, The University of Western Australia, Crawley, Western Australia, Australia
| | - Timothy J Phillips
- Neurological Intervention and Imaging Service of Western Australia, Sir Charles Gairdner Hospital, Nedlands, Perth, Western Australia, Australia
| | - Stephen Honeybul
- Department of Neurosurgery, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Graeme J Hankey
- Medical School, Faculty of Health and Medical Sciences, The University of Western Australia, Crawley, Perth, Western Australia, Australia; Perron Institute for Neurological and Translational Science, Nedlands, Perth, Western Australia, Australia
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Karmegaraj B. Foramen ovale flap aneurysm in fetuses associated with and without heart defects: Prenatal diagnosis, imaging, in-utero hemodynamics, pregnancy, and postnatal outcomes. Echocardiography 2024; 41:e15743. [PMID: 38284679 DOI: 10.1111/echo.15743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/30/2023] [Accepted: 01/01/2024] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Isolated redundant foramen ovale flap aneurysm (RFOA) in the absence of restrictive foramen ovale is believed to be a cause for pseudocoarctation of aorta since the impediment of blood flow to the left heart can be severe, resembling the picture of left ventricular hypoplasia with retrograde aortic flow. The primary objective of the study is to find whether RFOA is always a benign lesion. The main focus of the study is to share my experience in particular on fetuses having redundant foramen ovale flap aneurysm developing into coarctation of aorta and to study the associated factors. METHODS Retrospective study (January 2020 to June 2023). All fetuses with RFOA associated with and without congenital heart defects were included. Fetuses with restrictive foramen ovale and RFOA with single ventricle hearts were excluded. The imaging, in-utero hemodynamics, pregnancy, and postnatal outcomes with at least 3 months follow-up were presented. RESULTS During the study period, a total of 1499 fetal echocardiography were performed. Twenty-two fetuses with RFOA were included. Fourteen fetuses had isolated RFOA and eight had associated abnormalities [extracardiac (n = 5); intracardiac (n = 2), Both (n = 1)]. Genetic evaluation were performed only in fetuses with associated defects were normal. Postnatally all isolated RFOA fetuses had no aortic arch obstruction. Fetuses with associated aberrant right subclavian artery, isolated left superior vena cava, absent ductus venosus and ventricular septal defects developed aortic arch obstruction after birth. RFOA causes smallish left ventricle in fetuses with tetralogy of Fallot which recovered to normal size postnatally. CONCLUSION Isolated RFOA can be benign, however, if it is associated with cardiac or extracardiac anomalies predominantly resulted in aortic arch obstruction. Though it is a cause for pseudocoarctation of aorta, through postnatal reassessment of aortic arch is mandatory. Careful search for intracardiac and systemic venous anomalies is recommended. It created confusion regarding adequacy of left ventricle when associated with congenital heart defects.
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Affiliation(s)
- Balaganesh Karmegaraj
- Sowmi Pediatric Heart Centre, Swasthik Fetal Heart unit, Tamilnadu, India
- Department of Paediatric Cardiology, Amrita Institute of Medical Sciences and Research Centre, Kerala, India
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Volynskyi DA, Vakaliuk IP, Tymochko NB, Zvonar PP. Possibilities of predicting adverse cardiovascular events based on the analysis of clinical and instrumental research methods, as well as sST2 in patients after myocardial infarction. Wiad Lek 2024; 77:305-310. [PMID: 38592994 DOI: 10.36740/wlek202402119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
OBJECTIVE Aim: To determine the possibility of predicting adverse cardiovascular events based on the analysis of clinical and instrumental research methods, as well as sST2 in patients after myocardial infarction. PATIENTS AND METHODS Materials and Methods: The study included 64 patients who suffered an acute myocardial infarction and underwent PCI with balloon angioplasty and stenting of the infarct-related vessel in the acute period. The predictors of adverse cardiovascular events were assessed events during 1 year of observation. Indicators of echocardiography and coronary angiography were assessed and concentrations sST2. RESULTS Results: A worse prognosis was associated with intermediate ejection fraction (EF) (odds ratio (OR)=3.981, p<0.05), left aneurysm ventricle (LV) (OR=29.5, p<0.05), high concentrations of sST2 (OR=1.017, p<0.05) and scores on the Syntax scale (OR=1.001, p<0.05). CONCLUSION Conclusions: In patients who underwent percutaneous coronary intervention for myocardial infarction, adverse outcome during the next 2 years is associated with coronary and echocardiographic parameters, as well as biochemical indicators of myocardial stress and fibrosis. HF patients with intermediate EF, LV aneurysm, high sST2 concentrations, and high Syntax scores have the worst prognosis.
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Affiliation(s)
- Denys A Volynskyi
- IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE
| | - Ihor P Vakaliuk
- IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE
| | | | - Pavlo P Zvonar
- IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE
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Szabó D, Kasza G, Fazekas G, Koszta A, Jancsó G, Benkő L. [Results of elective endovascular repair of infrarenal aortic and common iliac artery aneurysms]. Orv Hetil 2023; 164:1993-2000. [PMID: 38108887 DOI: 10.1556/650.2023.32930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/10/2023] [Indexed: 12/19/2023]
Abstract
Bevezetés: Napjainkban az infrarenalis aorta aneurysmák miatt
végzett beavatkozások háromnegyede endovascularisan történik, melynél a nyitott
műtéthez képest alacsonyabb perioperatív morbiditással és mortalitással,
rövidebb kórházi tartózkodással, kevesebb korai szövődménnyel, de több hosszú
távú komplikációval számolhatunk. Célkitűzés: A Pécsi
Tudományegyetem Érsebészeti Klinikáján 2010 és 2020 között infrarenalis aorta
és/vagy arteria iliaca communis aneurysma miatt végzett elektív
sztentgraftbeültetések eredményeit vizsgáltuk. Módszer:
Retrospektív analízisünkben a betegek demográfiai adatai, társbetegségei, a
halálozás, a hospitalizációs idő és a posztoperatív intenzív osztályos
megfigyelés időtartama mellett vizsgáltuk az intraoperatív, korai és késői
szövődményeket, illetve a közöttük fennálló összefüggéseket.
Eredmények: 274 eset került beválogatásra. Intraoperatív
szövődményt 42 alkalommal (15,33%) észleltünk, 7 esetben (2,56%) endoleaket. A
korai időszakban 9 (3,28%), a posztoperatív első évben 14 betegünk hunyt el
(5,11%). A korai szövődmények között 3 endoleaket (1,09%) és 1
aneurysmazsák-rupturát (0,36%) detektáltunk. A sztentgraftspecifikus
szövődmények közül a leggyakoribbak az endoleak voltak (n = 68, 24,82%). A
vizsgálati periódus során az intenzív osztályra helyezett betegek száma és a
hospitalizációs idő is szignifikánsan csökkent. Diabetes mellitus mellett
szignifikánsan ritkábbak voltak a korai szövődmények, dohányzás mellett közel
kétszeres, hyperlipidaemia mellett viszont kétharmadnyi volt a
sztentgraftspecifikus szövődmények esélye. Következtetés: A
vizsgálati periódusban klinikánkon infrarenalis elektív
sztentgraftbeültetéseknél rövidült a hospitalizációs idő, egyre kevesebb beteg
került intenzív osztályos posztoperatív megfigyelésre, míg kapcsolatot találtunk
a dohányzás, a diabetes és a hyperlipidaemia jelenléte, valamint a szövődmények
megjelenési esélye között. Fontos kiemelni azonban, hogy az endovascularis
eszközök rapid fejlődése és az alacsony esetszám miatt a speciális szövődmények
hatékony követési és kezelési stratégiájának meghatározása sokszor individuális
döntést igényel. Orv Hetil. 2023; 164(50): 1993–2000.
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Affiliation(s)
- Dorottya Szabó
- 1 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Érsebészeti Klinika 7624 Pécs, Ifjúság útja 13. Magyarország
| | - Gábor Kasza
- 1 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Érsebészeti Klinika 7624 Pécs, Ifjúság útja 13. Magyarország
| | - Gábor Fazekas
- 1 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Érsebészeti Klinika 7624 Pécs, Ifjúság útja 13. Magyarország
| | - Alexandra Koszta
- 1 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Érsebészeti Klinika 7624 Pécs, Ifjúság útja 13. Magyarország
| | - Gábor Jancsó
- 1 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Érsebészeti Klinika 7624 Pécs, Ifjúság útja 13. Magyarország
| | - László Benkő
- 1 Pécsi Tudományegyetem, Általános Orvostudományi Kar, Klinikai Központ, Érsebészeti Klinika 7624 Pécs, Ifjúság útja 13. Magyarország
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Wang B, Peng G, Chen L, Guo M, Zhou J, Liu Y, Chen Z, Wang L. Effect of transcutaneous electrical acupoint stimulation on remifentanil dosage during craniotomy aneurysm clipping: a prospective, randomized controlled study. BMC Complement Med Ther 2023; 23:453. [PMID: 38093254 PMCID: PMC10717748 DOI: 10.1186/s12906-023-04297-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Craniotomy aneurysm clipping is one of the main treatments for intracranial aneurysm (IA). Endotracheal intubation and intraoperative operation may induce dramatic hemodynamic fluctuations and increase the risk of aneurysm rupture. Intraoperative high-dose opioid use is the main measure to reduce the intraoperative stress response, but it increases the incidence of complications such as postoperative vomiting and delayed awakening. Transcutaneous electrical acupoint stimulation (TEAS) stimulates β-endorphin expression levels and reduces opioid requirements. In this study, we aimed to assess the effects of TEAS on remifentanil dosage and oxidative stress (OS) in craniotomy aneurysm clipping. METHOD Forty-two patients with craniotomy aneurysm clipping were randomized into two groups: the TEAS group (T group) and the sham TEAS group (S group). "Hegu" (LI4), "Neiguan" (PC6) and "Zusanli" points (ST36) were selected, and a "HANS" percutaneous acupoint electrical stimulator was used for intervention 30 min before anesthesia induction until the end of the operation. The primary outcome was intraoperative remifentanil dosage. The secondary outcomes were intraoperative propofol dosage, mean arterial pressure (MAP) and heart rate (HR) 5 min before the TEAS intervention (T0), 5 min before head holder pinning (T1), immediately after pinning (T2), 5 min before craniotomy (T3), immediately after craniotomy (T4), at craniotomy (T5), and at the end of surgery (T6), as well as serum β-endorphin levels at T1, T2 and T6 and neuron-specific enolase (NSE), S100β, superoxide dismutase (SOD) and malondialdehyde (MDA) levels at T1, T2 and 24 h after surgery (T7). RESULTS The dosage of remifentanil in the T group was reduced compared to that in the S group (P < 0.05). At T2, T4 and T5, the MAP and HR in the T group were lower than those in the S group (P < 0.05). At T2 and T7, the levels of NSE, S100β and MDA in group T were lower than those in group S (P < 0.05), while the SOD levels in group T were higher than those in group S (P < 0.05). CONCLUSIONS The use of TEAS can reduce the dosage of remifentanil and reduce hemodynamic fluctuations during craniotomy aneurysm clipping. It reduces the occurrence of OS and central nervous system damage during surgery and has a certain brain protective effect. TRIAL REGISTRATION ChiCTR2100052353. https://www.chictr.org.cn/about.html .
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Affiliation(s)
- Bingyu Wang
- The First Clinical College of Medicine, Gannan Medical University, Ganzhou, 34100, China
- The Second Hospital of Ningbo, Ningbo, 315100, China
| | - Guanfa Peng
- The First Clinical College of Medicine, Gannan Medical University, Ganzhou, 34100, China
| | - Li Chen
- Department of Anesthesiology, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling West Road, Ganzhou, 34100, China
| | - Mingling Guo
- The First Clinical College of Medicine, Gannan Medical University, Ganzhou, 34100, China
| | - Jianshun Zhou
- The First Clinical College of Medicine, Gannan Medical University, Ganzhou, 34100, China
| | - Yingying Liu
- The First Clinical College of Medicine, Gannan Medical University, Ganzhou, 34100, China
| | - Zhen Chen
- The First Clinical College of Medicine, Gannan Medical University, Ganzhou, 34100, China
| | - Lifeng Wang
- Department of Anesthesiology, The First Affiliated Hospital of Gannan Medical University, No. 128, Jinling West Road, Ganzhou, 34100, China.
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Liu Q, Zhuang W, Chen J, Li S, Li C, Ma D, Chen M. A turn-on fluorescent probe for lipid-targeting imaging in human arterial aneurysm and fibrocalcific stenotic aortic valve. Spectrochim Acta A Mol Biomol Spectrosc 2023; 302:123030. [PMID: 37354855 DOI: 10.1016/j.saa.2023.123030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 06/08/2023] [Accepted: 06/14/2023] [Indexed: 06/26/2023]
Abstract
Fluorescence imaging techniques have shown remarkable performance in studying the biological functions of lipid droplets (LDs). However, the biological applications of the commercially available LDs probes suffer from insufficient specificity and low signal/noise ratio (SNR). Herein, we presented a novel near-infrared (NIR) lipid activatable fluorescence probe, namely Me2NND, with extremely low emission in water but significantly enhanced emission in the lipid environment. Me2NND presented good biocompatibility and impressive LDs-specific imaging ability in cells and tissues. Moreover, Me2NND has also shown good photostability and it could efficiently locate the distribution of LDs in human pathological samples of aortic aneurysms and fibrocalcific stenotic aortic valves. This study provided a novel turn-on probe Me2NND and would improve the bio-applications of LDs-specific probes.
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Affiliation(s)
- Qi Liu
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China
| | - Weihua Zhuang
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China.
| | - Jingruo Chen
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China
| | - Shufen Li
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China
| | - Chengming Li
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China
| | - Di Ma
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China
| | - Mao Chen
- Laboratory of Heart Valve Disease and Department of Cardiology, West China Hospital, Sichuan University, #37 Guoxue Alley, Chengdu 610041, China.
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Arafah A, Pham R, Filby SJ. Left Main Coronary Artery and Bilateral Mammary Artery Aneurysms in a Patient With Extensive Aortopathy. Tex Heart Inst J 2023; 50:e238248. [PMID: 38054351 PMCID: PMC10751475 DOI: 10.14503/thij-23-8248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Affiliation(s)
- Ala’ Arafah
- Division of Internal Medicine, Case Western Reserve University, and University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Richard Pham
- Division of Cardiovascular Medicine, University Hospitals Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Steven J. Filby
- Division of Cardiovascular Medicine, University Hospitals Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
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45
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Cruz Hernández A, Ortiz JLC, Silva Estrada JA. Giant early post-surgical aneurysm of the aortic arch in an infant. Cardiol Young 2023; 33:2649-2650. [PMID: 37905344 DOI: 10.1017/s1047951123003360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Ten-day-old neonate who underwent correction of interrupted aortic arch developed a giant early post-surgical aneurysm. To our knowledge, this unusual complication has been only reported as a late complication.
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Affiliation(s)
- Angel Cruz Hernández
- Department of Pediatric Cardiology, National Institute of Pediatrics, Mexico, Mexico
| | - José L Colín Ortiz
- Department of Pediatric Cardiology, National Institute of Pediatrics, Mexico, Mexico
| | - Jorge A Silva Estrada
- Department of Pediatric Cardiology, National Institute of Pediatrics, Mexico, Mexico
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Catalano O. Turbulent Flow in Aneurysms and Pseudoaneurysms. J Ultrasound Med 2023; 42:2911. [PMID: 37528616 DOI: 10.1002/jum.16311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/03/2023]
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Zhang C, Zhao M, Xie Y, Ding R, Ma M, Guo K, Jiang H, Xi W, Xia L. TL-MSE 2-Net: Transfer learning based nested model for cerebrovascular segmentation with aneurysms. Comput Biol Med 2023; 167:107609. [PMID: 37883854 DOI: 10.1016/j.compbiomed.2023.107609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
Cerebrovascular (i.e., cerebral vessel) segmentation is essential for diagnosing and treating brain diseases. Convolutional neural network models, such as U-Net, are commonly used for this purpose. Unfortunately, such models may not be entirely satisfactory in dealing with cerebrovascular segmentation with tumors due to the following issues: (1) Relatively small number of clinical datasets from patients obtained through different modalities such as computed tomography (CT) and magnetic resonance imaging (MRI), leading to inadequate training and lack of transferability in the modeling; (2) Insufficient feature extraction caused by less attention to both convolution sizes and cerebral vessel edges. Inspired by the existence of similar features on cerebral vessels between normal subjects and patients, we propose a transfer learning strategy based on a pre-trained nested model called TL-MSE2-Net. This model uses one of the publicly available datasets for cerebrovascular segmentation with aneurysms. To address issue (1), our transfer learning strategy leverages a pre-trained model that uses a large number of datasets from normal subjects, providing a potential solution to the lack of sufficient clinical datasets. To tackle issue (2), we structure the pre-trained model based on 3D U-Net, comprising three blocks: ResMul, DeRes, and REAM. The ResMul and DeRes blocks enhance feature extraction by utilizing multiple convolution sizes to capture multiscale features, and the REAM block increases the weight of the voxels on the edges of the given 3D volume. We evaluated the proposed model on one small private clinical dataset and two publicly available datasets. The experimental results demonstrated that our MSE2-Net framework achieved an average Dice score of 70.81 % and 89.08 % on the two publicly available datasets, outperforming other state-of-the-art methods. Ablation studies were also conducted to validate the effectiveness of each block. The proposed TL-MSE2-Net yielded better results than MSE2-Net on a small private clinical dataset, with increases of 5.52 %, 3.37 %, 6.71 %, and 0.85 % for the Dice score, sensitivity, Jaccard index, and precision, respectively.
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Affiliation(s)
- Chaoran Zhang
- Laboratory of Neural Computing and Intelligent Perception (NCIP), Capital Normal University, Beijing, 100048, China
| | - Ming Zhao
- Department of Neurosurgery, First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yixuan Xie
- Laboratory of Neural Computing and Intelligent Perception (NCIP), Capital Normal University, Beijing, 100048, China
| | - Rui Ding
- Laboratory of Neural Computing and Intelligent Perception (NCIP), Capital Normal University, Beijing, 100048, China
| | - Ming Ma
- Department of Computer Science, Winona State University, Winona, MN, 55987, USA
| | - Kaiwen Guo
- Laboratory of Neural Computing and Intelligent Perception (NCIP), Capital Normal University, Beijing, 100048, China
| | - Hongzhen Jiang
- Department of Neurosurgery, First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Wei Xi
- Department of Radiology, Fourth Medical Center, Chinese PLA General Hospital, Beijing, 100048, China
| | - Likun Xia
- Laboratory of Neural Computing and Intelligent Perception (NCIP), Capital Normal University, Beijing, 100048, China.
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Ya'Qoub L, Cheng R, Simson M, Agrawal H. Coronary steal syndrome caused by a large saphenous venous graft aneurysm with a fistula communicating to the right atrium managed by transcatheter closure. J Invasive Cardiol 2023; 35. [PMID: 38108875 DOI: 10.25270/jic/23.00030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
A 71-year-old man with history of coronary artery disease status post coronary artery bypass grafting (CABG) in 1999 (left internal mammary artery-left anterior descending, saphenous venous graft [SVG]-diagonal, and SVG-right coronary artery [RCA], ascending aorta aneurysm [4.8 cm], infrarenal aorta aortic aneurysm status post endovascular aortic repair, heart failure with reduced ejection fraction of 25% status post cardiac resynchronization therapy-defibrillator) presented with decompensated heart failure. He was in monomorphic ventricular tachycardia; he was cardioverted and started on amiodarone and lidocaine. His vital signs remained stable.
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Affiliation(s)
- Lina Ya'Qoub
- Department of Cardiology, University of California-San Francisco, San Francisco, California, USA. E-mail:
| | - Richard Cheng
- Department of Cardiology, University of California-San Francisco, San Francisco, California, USA
| | - Marc Simson
- Department of Cardiology, University of California-San Francisco, San Francisco, California, USA
| | - Harsh Agrawal
- Department of Cardiology, University of California-San Francisco, San Francisco, California, USA
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Liu Y, Qi F, Cai XC. An aneurysm-specific preconditioning technique for the acceleration of Newton-Krylov method with application in the simulation of blood flows. Int J Numer Method Biomed Eng 2023; 39:e3771. [PMID: 37688432 DOI: 10.1002/cnm.3771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 07/25/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023]
Abstract
In this paper, we develop an algorithm to simulate blood flows in aneurysmal arteries and focus on the construction of robust and efficient multilevel preconditioners to speed up the convergence of both linear and nonlinear solvers. The work is motivated by the observation that in the local aneurysmal region, the flow is often quite complicated with one or more vortices, but in the healthy section of the artery, the principal component of blood flows along the centerline of the artery. Based on this observation, we introduce a novel two-level additive Schwarz method with a mixed-dimensional coarse preconditioner. The key components of the preconditioner include (1) a three-dimensional coarse preconditioner covering the aneurysm; (2) a one-dimensional coarse preconditioner covering the central line of the healthy section of the artery; (3) a collection of three-dimensional overlapping subdomain preconditioners covering the fine meshes of the entire artery; (4) extension/restriction operators constructed by radial basis functions. The blood flow is modeled by the unsteady incompressible Navier-Stokes equations with resistance outflow boundary conditions discretized by a stabilized finite element method on fully unstructured meshes and the second-order backward differentiation formula in time. The resulting large nonlinear algebraic systems are solved by a Newton-Krylov algorithm accelerated by the new preconditioner in two ways: (1) the initial guess of Newton is obtained by solving a linear system defined by the coarse preconditioner; (2) the Krylov solver of the Jacobian system is preconditioned by the new preconditioner. Numerical experiments indicate that the proposed preconditioner is highly effective and robust for complex flows in a patient-specific artery with aneurysm, and it significantly reduces the numbers of linear and nonlinear iterations.
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Affiliation(s)
- Yingzhi Liu
- Department of Mathematics, University of Macau, Macau, People's Republic of China
| | - Fenfen Qi
- Department of Mathematics, University of Macau, Macau, People's Republic of China
| | - Xiao-Chuan Cai
- Department of Mathematics, University of Macau, Macau, People's Republic of China
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Stappers S, Swinnen I, Siozopoulou V, Bastin J, De Smet A, Dubois M, Loeys B, Aerts O. Neutrophilic dermatoses and aneurysms: An overlooked association? J Eur Acad Dermatol Venereol 2023; 37:e1461-e1464. [PMID: 37471474 DOI: 10.1111/jdv.19365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 07/18/2023] [Indexed: 07/22/2023]
Affiliation(s)
- Sofie Stappers
- Department of Dermatology, University Hospital Antwerp (UZA), Antwerp, Belgium
| | - Inge Swinnen
- Department of Dermatology, Heilig Hart Ziekenhuis Lier, Antwerp, Belgium
| | | | - Julie Bastin
- Department of General Medical Oncology, Heilig Hart Ziekenhuis Lier, Antwerp, Belgium
| | - Anthony De Smet
- Department of Vascular Surgery, Heilig Hart Ziekenhuis Lier, Antwerp, Belgium
| | - Marc Dubois
- Department of Vascular Surgery, Heilig Hart Ziekenhuis Lier, Antwerp, Belgium
| | - Bart Loeys
- Center of Medical Genetics, University of Antwerp/Antwerp University Hospital (UZA), Antwerp, Belgium
| | - Olivier Aerts
- Department of Dermatology, University Hospital Antwerp (UZA), Antwerp, Belgium
- Research Group Immunology, Infla-Med Centre of Excellence, University of Antwerp, Antwerp, Belgium
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