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Kushi Y, Imamura H, Itazu T, Ozaki S, Niwa A, Shimonaga K, Ikedo T, Hamano E, Yamada K, Ohta T, Satow T, Yamamoto T, Iihara K, Kataoka H. One-stage combined open and endovascular treatment using a hybrid operating room is safe and effective for distal middle cerebral artery aneurysms. World Neurosurg 2024:S1878-8750(24)00733-2. [PMID: 38697262 DOI: 10.1016/j.wneu.2024.04.159] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND Aneurysms located in the distal middle cerebral artery (MCA) are relatively rare and lack an established treatment strategy. For distal MCA (DMCA) aneurysms, we performed a one-stage combined procedure of endovascular parent artery occlusion (PAO) with coils and superficial temporal artery to middle cerebral artery (STA-MCA) bypass in a hybrid operating room (HOR). The aim of this study was to evaluate the safety and efficacy of this procedure. METHODS Cases of unruptured DMCA aneurysms treated with the one-stage combined PAO and STA-MCA bypass in HOR were retrospectively examined, and patients' and aneurysmal backgrounds, surgical procedures, and treatment outcomes were analyzed. RESULTS Six patients were included in the study. The average maximum diameter of the aneurysms was 14.4 mm. One aneurysm was located at M2 and five at M3. All aneurysms had a fusiform shape. No cases were associated with infection, trauma, or malignant tumors. In all six cases, the combined PAO and STA-MCA bypass was successfully completed. No postoperative hemorrhagic complications occurred. A symptomatic ischemic complication occurred in one case whose symptom disappeared in a week. Three months after surgery, complete obliteration of the aneurysm and patency of the bypass were confirmed in all cases. CONCLUSIONS The one-stage combined PAO and STA-MCA bypass in the HOR is safe and effective for DMCA aneurysms, potentially serving as a treatment option for this complex aneurysm.
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Affiliation(s)
- Yuji Kushi
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan; Department of Neurosurgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa, Yokohama, 2360004, Japan; Department of Neurosurgery, Saiseikai Yokohamashi Nanbu Hospital, 3-2-10 Konandai, Konan, Yokohama, 2340054, Japan.
| | - Hirotoshi Imamura
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Takaaki Itazu
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Saya Ozaki
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Akihiro Niwa
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Koji Shimonaga
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Taichi Ikedo
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Eika Hamano
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Kiyofumi Yamada
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Tsuyoshi Ohta
- Department of Neurosurgery, Kobe City Medical Center General Hospital, 2-1-1 Minatojima, Chuo-ku, Kobe, 6500047, Japan
| | - Tetsu Satow
- Department of Neurosurgery, Faculty of Medicine, Kindai University, 377-2 Ohnohigashi, Sayama, Osaka, 5898511, Japan
| | - Tetsuya Yamamoto
- Department of Neurosurgery, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa, Yokohama, 2360004, Japan
| | - Koji Iihara
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
| | - Hiroharu Kataoka
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita, Osaka, 5648565, Japan
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Yamauchi K, Kumagai M, Itazu T, Sakai H. Open Retrograde Stenting with a Sheathless Method Using a Balloon-guiding Catheter for Proximal Common Carotid Artery Stenosis. J Neuroendovasc Ther 2020; 14:331-335. [PMID: 37502172 PMCID: PMC10370596 DOI: 10.5797/jnet.tn.2020-0035] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/20/2020] [Indexed: 07/29/2023]
Abstract
Objective Carotid artery stenting (CAS) and carotid endarterectomy are relatively difficult for proximal common carotid artery (CCA) stenosis because of the difficulty in anatomical approach. We treated proximal CCA stenosis by retrograde stenting using a 9Fr Optimo for peripheral intervention with a sheathless method. Case Presentation A 60-year-old woman was scheduled for total arch replacement (TAR) for an aortic arch aneurysm. Preoperative cervical MRI incidentally revealed tandem stenosis in the left CCA. We intended to treat CCA stenosis prior to aortic arch replacement. Under general anesthesia, distal left CCA was exposed. A 9Fr Optimo was introduced into CCA by retrograde with a sheathless method. The retrograde CAS was performed under distal balloon protection. Her postoperative course was uneventful. Conclusion Retrograde stenting using a 9Fr Optimo for peripheral intervention with a sheathless method was safe and useful for proximal CCA stenosis.
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Affiliation(s)
- Keita Yamauchi
- Department of Neurosurgery, National Hospital Organization Toyohashi Medical Center, Toyohashi, Aichi, Japan
| | - Masaki Kumagai
- Department of Neurosurgery, National Hospital Organization Toyohashi Medical Center, Toyohashi, Aichi, Japan
| | - Takaaki Itazu
- Department of Neurosurgery, National Hospital Organization Toyohashi Medical Center, Toyohashi, Aichi, Japan
| | - Hideki Sakai
- Department of Neurosurgery, National Hospital Organization Toyohashi Medical Center, Toyohashi, Aichi, Japan
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Haruta T, Takata Y, Iwanishi M, Maegawa H, Imamura T, Egawa K, Itazu T, Kobayashi M. Ala1048-->Asp mutation in the kinase domain of insulin receptor causes defective kinase activity and insulin resistance. Diabetes 1993; 42:1837-44. [PMID: 8243830 DOI: 10.2337/diab.42.12.1837] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We identified a heterozygous missense mutation that substituted aspartic acid (GAC) for alanine (GCC) at codon 1048 of the insulin receptor gene in a patient who displayed typical symptoms of Type A syndrome of insulin resistance. The proband's mother and younger brother were also found to be heterozygous for the mutation. We constructed the identified mutant insulin receptor cDNA by site-directed mutagenesis, transfected the mutant cDNA into COS 7 cells, and found that kinase activity of the mutant insulin receptors was markedly impaired. Ala1048 is located in the kinase domain of the insulin receptor beta-subunit and is conserved in most of protein-tyrosine kinases. Besides, neighboring Glu1047 is invariant in all protein kinases and is thought to be involved in interaction with ATP. Photoaffinity labeling of the mutant insulin receptor with ATP analogue, 8-azido (alpha-32P)ATP was not influenced by the mutation, suggesting that the mutation did not inhibit ATP binding but possibly interfered with subsequent phosphoryl transfer. Insulin-stimulated phosphorylation of exogenous substrate by partially purified insulin receptors prepared from COS 7 cells that were cotransfected with wild-type and mutant insulin receptor cDNAs was markedly impaired, whereas autophosphorylation was decreased by approximately 50% of wild-type receptors. These results indicated that the identified heterozygous substitution of Asp for Ala1048 in insulin receptor was responsible for insulin resistance of this patient.
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Affiliation(s)
- T Haruta
- First Department of Medicine, Toyama Medical and Pharmaceutical University, Japan
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Iwanishi M, Haruta T, Takata Y, Ishibashi O, Sasaoka T, Egawa K, Imamura T, Naitou K, Itazu T, Kobayashi M. A mutation (Trp1193-->Leu1193) in the tyrosine kinase domain of the insulin receptor associated with type A syndrome of insulin resistance. Diabetologia 1993; 36:414-22. [PMID: 8390949 DOI: 10.1007/bf00402277] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We evaluated a 35-year-old diabetic male patient with type A insulin resistance, showing acanthosis nigricans. Insulin binding to the patient's Epstein-Barr-virus transformed lymphocytes was mildly reduced. The maximal insulin-stimulated autophosphorylation of the insulin receptor from the patient's transformed lymphocytes was decreased to 45% of that from the control subjects. On examination, the biological activities of insulin and insulin-like growth factor I in the patient's cultured fibroblasts, insulin sensitivity of amino isobutyric acid uptake and thymidine incorporation was decreased, but insulin-like growth factor I action was normal. The sequence analysis of amplified genomic DNA revealed that the patient was heterozygous for a mutation substituting Leu for Trp at codon 1193 in exon 20 of the insulin receptor gene. The patient's mother and sister were also heterozygous for a mutation in the insulin receptor gene that substituted Leu for Trp1193 in the beta subunit of the receptor. Therefore, the mutation causes insulin resistance in a dominant fashion. They were less hyperglycaemic and more hyperinsulinaemic than the proband after glucose loading. The mother had diabetes mellitus but did not show acanthosis nigricans, while the sister did not have diabetes and showed acanthosis nigricans. These results suggest that this mutation causes defective tyrosine kinase activity of the insulin receptor, which results in insulin resistance. Insulin action and phenotypic appearance may be mediated by different factors.
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Affiliation(s)
- M Iwanishi
- First Department of Medicine, Toyama Medical and Pharmaceutical University, Japan
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