1
|
Robinow ZM, Peterson C, Riestenberg R, Waldau B, Yu N, Shahlaie K. Cosmetic Outcomes of Supraorbital Keyhole Craniotomy Via Eyebrow Incision: A Systematic Review and Meta-Analysis. J Neurol Surg B Skull Base 2023; 84:470-498. [PMID: 37671300 PMCID: PMC10477017 DOI: 10.1055/s-0042-1755575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/08/2022] [Indexed: 10/14/2022] Open
Abstract
Background Supraorbital eyebrow craniotomy is a minimally invasive alternative to a frontotemporal craniotomy and is often used for tumor and vascular pathologies. The purpose of this study was to investigate how patient cosmetic outcomes are affected by technique variations of this approach. Methods PubMed, Embase, and Scopus databases were systematically searched, and results were reported according to PRISMA guidelines. For the meta-analysis portion, the DerSimonian-Laird random effects model was used, and the primary end points were patient satisfaction and percentage of permanent cosmetic complications. Results A total of 2,629 manuscripts were identified. Of those, 124 studies (8,241 surgical cases) met the inclusion criteria. Overall, 93.04 ± 11.93% of patients reported favorable cosmetic outcome following supraorbital craniotomy, and mean number of cases with permanent cosmetic complications was 6.62 ± 12.53%. We found that vascular cases are associated with more favorable cosmetic outcomes than tumor cases ( p = 0.0001). Addition of orbital osteotomy or use of a drain is associated with adverse cosmetic outcomes ( p = 0.001 and p = 0.0001, respectively). The location of incision, size of craniotomy, utilization of an endoscope, method of cranial reconstruction, skin closure, use of antibiotics, and addition of pressure dressing did not significantly impact cosmetic outcomes ( p > 0.05 for all). Conclusions Supraorbital craniotomy is a minimally invasive technique associated with generally high favorable cosmetic outcomes. While certain techniques used in supraorbital keyhole approach do not pose significant cosmetic risks, utilization of an orbital osteotomy and the addition of a drain correlate with unfavorable cosmetic outcomes.
Collapse
Affiliation(s)
- Zoe M. Robinow
- California Northstate University College of Medicine, Elk Grove, California, United States
| | - Catherine Peterson
- Department of Neurological Surgery, University of California Davis, Sacramento, California, United States
| | - Robert Riestenberg
- Department of Neurological Surgery, University of California Davis, Sacramento, California, United States
| | - Ben Waldau
- Department of Neurological Surgery, University of California Davis, Sacramento, California, United States
| | - Nina Yu
- Department of Neurological Surgery, University of California Davis, Sacramento, California, United States
| | - Kiarash Shahlaie
- Department of Neurological Surgery, University of California Davis, Sacramento, California, United States
| |
Collapse
|
2
|
The risk factors of postoperative infarction after surgical clipping of unruptured anterior communicating artery aneurysms: anatomical consideration and infarction territory. Acta Neurochir (Wien) 2023; 165:501-515. [PMID: 36652012 DOI: 10.1007/s00701-023-05487-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 12/30/2022] [Indexed: 01/19/2023]
Abstract
PURPOSE An anterior communicating artery is a common location for both ruptured and unruptured intracranial aneurysms, and microsurgery is sometimes necessary for their successful treatment. However, postoperative infarction should be considered during clipping due to the complex surrounding structures of anterior communicating artery aneurysms. This study aimed to evaluate the risk factors of postoperative infarction after surgical clipping of unruptured anterior communicating artery aneurysms and its clinical outcomes. METHODS The data of patients who underwent microsurgical clipping of an unruptured anterior communicating artery aneurysm in our hospital between January 2008 and December 2020 were retrospectively analyzed. The patients' demographic data, anatomical features of the anterior communicating artery complex and aneurysm, surgical technique, characteristics of postoperative infarction, and its clinical course were evaluated. RESULTS Notably, among 848 patients, 66 (7.8%) and 34 (4%) patients had radiologic and symptomatic infarctions, respectively. Univariate and multivariate logistic regression analyses showed that hypertension (odds ratio (OR), 1.99; [Formula: see text]), previous stroke (OR, 3.89; [Formula: see text]), posterior projection (OR, 5.58; [Formula: see text]), aneurysm size (OR, 1.17; optimal cut-off value, 6.14 mm; [Formula: see text]), and skull base-to-aneurysm distance (OR, 1.15; optimal cut-off value, 11.09 mm; [Formula: see text]) were associated with postoperative infarction. In the pterional approach, a closed A2 plane was an additional risk factor (OR, 1.88; [Formula: see text]). Infarction of the subcallosal and hypothalamic branches was significantly associated with symptomatic infarction ([Formula: see text]). CONCLUSION Hypertension, previous stroke, posteriorly projecting aneurysms, aneurysm size, and highly positioned aneurysms are independent risk factors for postoperative infarction during surgical clipping of an unruptured anterior communicating artery aneurysm. Additionally, a closed A2 plane is an additional risk factor of postoperative infarction in patients undergoing clipping via the pterional approach.
Collapse
|
3
|
Kim M, Kim BJ, Son W, Park J. Postoperative Clipping Status after a Pterional versus Interhemispheric Approach for High-Positioned Anterior Communicating Artery Aneurysms. J Korean Neurosurg Soc 2021; 64:524-533. [PMID: 33853297 PMCID: PMC8273785 DOI: 10.3340/jkns.2020.0215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/07/2020] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE When treating high-positioned anterior communicating artery (ACoA) aneurysms, pterional-transsylvian and interhemispheric approaches are both viable options, yet comparative studies of these two surgical approaches are rare. Accordingly, this retrospective study investigated the surgical results of both approaches. METHODS Twenty-four patients underwent a pterional approach (n=11) or interhemispheric approach (n=13), including a unilateral low anterior interhemispheric approach or bifrontal interhemispheric approach, for high-positioned ACoA aneurysms with an aneurysm dome height >15 mm and aneurysm neck height >10 mm both measured from the level of the anterior clinoid process. The clinical and radiological data were reviewed to investigate the surgical results and risk factors of incomplete clipping. RESULTS The pterional patient group showed a significantly higher incidence of incomplete clipping than the interhemispheric patient group (p=0.031). Four patients (36.4%) who underwent a pterional approach showed a postclipping aneurysm remnant, whereas all the patients who experienced an interhemispheric approach showed complete clipping. In one case, the aneurysm remnant was obliterated by coiling, while follow-up of the other three cases showed the remnants remained limited to the aneurysm base. A multivariate analysis revealed that a pterional approach for a large aneurysm with a diameter >8 mm presented a statistically significant risk factor for incomplete clipping. CONCLUSION For high-positioned ACoA aneurysms with a dome height >15 mm and neck height >10 mm above the level of the anterior clinoid process, a large aneurysm with a diameter >8 mm can be clipped more completely via an interhemispheric approach than via a pterional approach.
Collapse
Affiliation(s)
- Myungsoo Kim
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Byoung-Joon Kim
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Wonsoo Son
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jaechan Park
- Department of Neurosurgery, School of Medicine, Kyungpook National University, Daegu, Korea
| |
Collapse
|
4
|
Jang CK, Chung J, Lee JW, Huh SK, Son NH, Park KY. Recurrence and retreatment of anterior communicating artery aneurysms after endovascular treatment: a retrospective study. BMC Neurol 2020; 20:287. [PMID: 32727591 PMCID: PMC7389810 DOI: 10.1186/s12883-020-01871-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/26/2020] [Indexed: 11/16/2022] Open
Abstract
Background Surgical treatment of anterior communicating artery (Acom) aneurysm is challenging due to anatomic complexity. We aimed to describe our experiences with endovascular treatment (EVT) of Acom aneurysms, and to evaluate the incidence and risk factors of recurrence and retreatment. Methods The study comprised 260 patients who were treated at a single center between January 2010 and December 2018. Patients who had EVT, including stent-assisted coiling of Acom aneurysms, were included. All medical records were retrospectively reviewed. The incidence and risk factors of recurrence and retreatment were evaluated. Univariate and multivariate analysis were conducted. Results Recurrence of Acom aneurysms occurred in 38 (14.6%) patients. Mean follow-up duration was 27 months (range 1–110). Multivariate logistic regression indicated that ruptured aneurysm (odds ratio [OR] 3.55, P = 0.001), dome direction (anterior) (OR 3.86, P = 0.002), maximal diameter (OR 1.19, P = 0.02), and mean age (OR 0.96, P = 0.02) were independent risk factors for aneurysm recurrence. Of 38 cases of recurrence, 10 (3.8%) patients underwent retreatment. Ruptured aneurysm (OR 14.7, P = 0.004), maximal diameter (OR 1.56, P = 0.02), inflow angle (OR 1.04, P = 0.03), and Raymond-Roy classes II and III (OR 6.19, P = 0.03) showed significant relation to retreatment in multivariate logistic regression analysis. Conclusions In our study, recurrence rate of Acom aneurysms after EVT was 14.6%. Rupture, anterior dome direction, maximal diameter, and mean age were significantly associated with recurrence. Retreatment rate of recurrent Acom aneurysms after EVT was 3.8%. Patients with Acom aneurysms with large inflow, rupture, large size, or incomplete occlusion may be at a high risk of retreatment of recurring aneurysm.
Collapse
Affiliation(s)
- Chang Ki Jang
- Department of Neurosurgery, Severance Stroke Center, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joonho Chung
- Department of Neurosurgery, Severance Stroke Center, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.,Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Whan Lee
- Department of Neurosurgery, Severance Stroke Center, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Seung Kon Huh
- Department of Neurosurgery, Severance Stroke Center, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.,Department of Neurosurgery, Muhas Academic Medical Center, Dar es Salaam, United Republic of Tanzania
| | - Nak-Hoon Son
- Medical Research Supporting Section, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea
| | - Keun Young Park
- Department of Neurosurgery, Severance Stroke Center, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| |
Collapse
|
5
|
Hendrix P, Fischer G, Krug J, Linnebach AC, Simgen A, Griessenauer CJ, Burkhardt BW, Oertel J. Olfactory dysfunction in patients undergoing supraorbital keyhole craniotomy for clipping of unruptured aneurysms. Clin Anat 2019; 33:316-323. [PMID: 31769083 DOI: 10.1002/ca.23529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/15/2019] [Accepted: 11/19/2019] [Indexed: 11/08/2022]
Abstract
Olfactory performance has rarely been assessed in the perioperative phase of elective aneurysm surgery. Here, we assessed the risk for olfactory deterioration following surgical treatment of unruptured cerebral aneurysm via the supraorbital keyhole craniotomy. A retrospective review of patients with electively treated cerebral aneurysms who underwent perioperative assessment of olfactory function using a sniffin' sticks odor identification test between January 2015 and January 2016 was performed. A subgroup of patients without history of subarachnoid hemorrhage, without prior aneurysm treatment, and confirmed olfactory function underwent supraorbital keyhole craniotomy for aneurysm clipping. Microscopic and endoscopic videos were reviewed for this subgroup. Sixty-four patients who underwent elective aneurysm treatment either via surgical clipping or endovascular aneurysm obliteration were identified. Prior to treatment, 4/64 (6.3%) demonstrated bilateral anosmia. Collectively, 14 patients (21.9%) met subgroup criteria of supraorbital keyhole craniotomy for aneurysm clipping. Here, olfactory performance significantly decreased postoperatively on the side of craniotomy (ipsilateral, P = 0.007), whereas contralateral and bilateral olfactory function remained unaltered (P = 0.301 and P = 0.582, respectively). Consequently, 4/14 patients (28.6%) demonstrated ipsilateral anosmia 3 months after surgery. One patient (1/14, 7.1%) also experienced contralateral anosmia resulting in bilateral anosmia. Intraoperative visualization of the olfactory tract and surgical maneuvers do not facilitate prediction of olfactory outcome. The supraorbital keyhole craniotomy harbors a specific risk for unilateral olfactory deterioration. Lack of perioperative olfactory assessment likely results in underestimation of the risk for olfactory decline. Despite uneventful surgery, prediction of postoperative olfactory function and dysfunction remain challenging. Clin. Anat. 33:316-323, 2020. © 2019 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Philipp Hendrix
- Department of Neurosurgery, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| | - Gerrit Fischer
- Department of Neurosurgery, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| | - Julian Krug
- Department of Neurosurgery, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| | - Alan-Christopher Linnebach
- Department of Neurosurgery, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| | - Andreas Simgen
- Department of Neuroradiology, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| | - Christoph J Griessenauer
- Department of Neurosurgery, Geisinger Health System, Danville, Pennsylvania.,Research Institute of Neurointervention, Paracelsus Medical University, Salzburg, Austria
| | - Benedikt W Burkhardt
- Department of Neurosurgery, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| | - Joachim Oertel
- Department of Neurosurgery, Saarland University Medical Center and Saarland University Faculty of Medicine, Homburg/Saar, Germany
| |
Collapse
|
6
|
Park J, Son W, Kwak Y, Ohk B. Pterional versus superciliary keyhole approach: direct comparison of approach-related complaints and satisfaction in the same patient. J Neurosurg 2019; 130:220-226. [PMID: 29498570 DOI: 10.3171/2017.8.jns171167] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 03/02/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate and compare the level of patient satisfaction and approach-related patient complaints between a superciliary keyhole approach and a pterional approach. METHODS Patients who underwent an ipsilateral superciliary keyhole approach and a contralateral pterional approach for bilateral intracranial aneurysms during an 11-year period were contacted and asked to complete a patient satisfaction questionnaire. The questionnaire covered 5 complaint areas related to the surgical approaches: craniotomy-related pain, sensory symptoms in the head, cosmetic complaints, palpable cranial irregularities, and limited mouth opening. The patients were asked to rate the 5 complaint areas on a scale from 0 (asymptomatic or very pleasant) to 4 (severely symptomatic or very unpleasant). Finally, the patients were asked to rate the level of overall satisfaction related to each surgical procedure on a visual analog scale (VAS) from 0 (most unsatisfactory) to 100 (most satisfactory). RESULTS A total of 21 patients completed the patient satisfaction questionnaire during a follow-up clinic visit. For the superciliary procedures, no craniotomy-related pain, palpable irregularities, or limited mouth opening was reported, and only minor sensory symptoms (numbness in the forehead) and cosmetic complaints (short linear operative scar) were reported (score = 1) by 1 (4.8%) and 3 patients (14.3%), respectively. Compared with the pterional approach, the superciliary approach showed better outcomes regarding the incidence of craniotomy-related pain, cosmetic complaints, and palpable irregularities, with a significant between-approach difference (p < 0.05). Furthermore, the VAS score for patient satisfaction was significantly higher for the superciliary approach (mean 95.2 ± 6.0 [SD], range 80-100) than for the pterional approach (mean 71.4 ± 10.6, range 50-90). Moreover, for the pterional approach, a multiple linear regression analysis indicated that the crucial factors decreasing the level of patient satisfaction were cosmetic complaints, craniotomy-related pain, and sensory symptoms, in order of importance (p < 0.05). CONCLUSIONS In successful cases in which the primary surgical goal of complete aneurysm clipping without postoperative complications is achieved, a superciliary keyhole approach provides a much higher level of patient satisfaction than a pterional approach, despite a facial wound. For a pterional approach, the patient satisfaction level is affected by the cosmetic results, craniotomy-related pain, and numbness behind the hairline, in order of importance.
Collapse
Affiliation(s)
- Jaechan Park
- 1Department of Neurosurgery
- 2Research Center for Neurosurgical Robotic Systems, and
| | - Wonsoo Son
- 1Department of Neurosurgery
- 2Research Center for Neurosurgical Robotic Systems, and
| | - Youngseok Kwak
- 1Department of Neurosurgery
- 2Research Center for Neurosurgical Robotic Systems, and
| | - Boram Ohk
- 3Clinical Trial Center, Kyungpook National University, Daegu, Republic of Korea
| |
Collapse
|
7
|
Rabelo NN, da Costa BBS, Teixeira MJ, Figueiredo EG. Letter to the Editor. Minimally invasive techniques: the new frontier in neurosurgery. J Neurosurg 2019; 130:330-331. [PMID: 30141761 DOI: 10.3171/2018.6.jns181491] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
8
|
Rychen J, Croci D, Roethlisberger M, Nossek E, Potts M, Radovanovic I, Riina H, Mariani L, Guzman R, Zumofen DW. Minimally Invasive Alternative Approaches to Pterional Craniotomy: A Systematic Review of the Literature. World Neurosurg 2018; 113:163-179. [DOI: 10.1016/j.wneu.2018.02.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/01/2018] [Accepted: 02/02/2018] [Indexed: 11/28/2022]
|
9
|
Matsukawa H, Kamiyama H, Miyazaki T, Kinoshita Y, Noda K, Ota N, Saito N, Takeda R, Tokuda S, Tanikawa R. Impacts of a Size Ratio on Outcome in Patients with Surgically Treated Unruptured Nondissecting Anterior Cerebral Artery Aneurysms. World Neurosurg 2018; 111:e250-e260. [DOI: 10.1016/j.wneu.2017.12.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/05/2017] [Accepted: 12/08/2017] [Indexed: 11/16/2022]
|
10
|
Hayashi Y, Sasagawa Y, Fukui I, Oishi M, Kita D, Misaki K, Kozaka K, Tachibana O, Nakada M. Descent of the anterior communicating artery after removal of pituitary macroadenoma using transsphenoidal surgery. Surg Neurol Int 2018; 8:306. [PMID: 29404193 PMCID: PMC5764919 DOI: 10.4103/sni.sni_411_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 02/21/2017] [Indexed: 11/09/2022] Open
Abstract
Background: After removal of pituitary macroadenoma, the anterior communicating artery (AComA) descends toward the original position. However, the process and contributing factors of this descent are not elucidated. Methods: This retrospective study included 102 patients who underwent transsphenoidal surgery (TSS) for macroadenomas with maximum diameters of >2 cm. Sequential T2-weighted magnetic resonance images were used to assess the AComA flow void and its distance from the planum sphenoidale before and after TSS. The AComA position in relation to the adenoma was divided into four groups as follows: anterior, anterosuperior, superior, and posterior. The descent was compared to the presence of intratumoral hemorrhage or adenoma extension into the sphenoid sinus. Results: One week after TSS, the AComA descent was more pronounced than when originally in the superior position (6.5 ± 3.7 mm vs 4.4 ± 3.5 mm, P < 0.0001). The postoperative descents of the AComA were well correlated with those of residual adenomas only when in the superior position (P = 0.030). The AComA descent was more significant at 1 week (4.4 ± 3.5 mm) than at 1 week to 3 months (0.7 ± 1.0 mm) in all the groups. Both intratumoral hemorrhage and sphenoid sinus extension of adenoma did not affect the AComA descent in each group. Conclusion: AComA descent was most influenced when it was superior to the macroadenoma and progressed mostly within 1 week after TSS, probably initiating during TSS. The position of the AComA in relation to a macroadenoma should be considered preoperatively to avoid vascular injury.
Collapse
Affiliation(s)
- Yasuhiko Hayashi
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Yasuo Sasagawa
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Issei Fukui
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Masahiro Oishi
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Daisuke Kita
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Kouichi Misaki
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Kazuto Kozaka
- Department of Radiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Osamu Tachibana
- Department of Neurosurgery, Kanazawa Medical University, Kanazawa, Japan
| | - Mitsutoshi Nakada
- Department of Neurosurgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| |
Collapse
|
11
|
Spiessberger A, Baumann F, Nevzati E, Kothbauer KF, Fandino J, Muroi C. Minimally invasive medial supraorbital, combined subfrontal-interhemispheric approach to the anterior communicating artery complex-a cadaveric study. Acta Neurochir (Wien) 2017; 159:1079-1085. [PMID: 28386838 DOI: 10.1007/s00701-017-3159-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
Abstract
INTRODUCTION In selected cases, microsurgical clipping remains a valuable treatment alternative to endovascular occlusion of anterior communicating artery (AComA) aneurysms. Their clipping is challenging and carries a risk of postsurgical cognitive impairment. We evaluate the microsurgical anatomy of a new, minimally invasive combined interhemispheric-subfrontal approach to the AComA complex via a medial supraorbital craniotomy. METHODS In this descriptive anatomic study, four alcohol-embedded, silicon-injected human cadaver heads were used. In each of the two cadavers, the AComA complex was approached from either the right or left side. An operating microscope and standard microsurgical instruments were used. RESULTS After a medial eyebrow incision, a medial supraorbital minicraniotomy was performed. The frontal sinus was opened and cranialized. Following the dural opening, a subfrontal arachnoid dissection was performed to identify the optico-carotid complex. By following the A1 segment, a low-lying AComA complex could be visualized. Shifting the corridor towards the midline enabled an interhemispheric dissection. This dissection resulted in a wide superior-inferior corridor. Higher-lying AComA complexes could also be visualized. The achieved exposure of the AComA complex would allow safe dissection and clipping of low- and high-lying AComA aneurysms, with minimal retraction and preservation of the surrounding anatomical structures, in particular the perforators. CONCLUSIONS We demonstrate the anatomy of a novel approach for surgical clipping of AComA aneurysms. Our study suggests that this approach provides good exposure without concomitant structural and vascular injury and thus might reduce the risk of procedure-related morbidity.
Collapse
|