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Intraoperative cerebral angiography in arteriovenous malformation resection in children: a single institutional experience

Clinical article

Marian Gaballah, Phillip B. Storm, Deborah Rabinowitz, Rebecca N. Ichord, Robert W. Hurst, Ganesh Krishnamurthy, Marc S. Keller, Adeka McIntosh, and Anne Marie Cahill

Object

The use of cerebral intraoperative angiography has been described in resection of arteriovenous malformations (AVMs) in adults. More recently, studies have described experiences with intraoperative angiography in a small number of children. However, data on the safety and clinical utility of intraoperative angiography in the pediatric population remains limited in comparison with available data in adults. The aim of the study was to evaluate the use of cerebral intraoperative angiography in children undergoing AVM resection. The clinical utility of intraoperative angiography and procedure-related complications were evaluated.

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对所有patie进行回顾性研究nts undergoing cerebral AVM resection with intraoperative angiography at The Children's Hospital of Philadelphia between 2008 and 2012. Patient imaging and operative and medical notes were reviewed to evaluate for end points of the study. A total of 17 patients (8 males, 9 females) were identified, with a median age of 12.1 years (range 1.2–17.9 years) and median weight of 45.5 kg (range 12.1–78.9 kg).

Results

A total of 21 intraoperative angiography procedures were performed for 18 AVM resections in 17 patients. The technical success rate was 94%. In 2 cases (11%), intraoperative angiography demonstrated a residual AVM, and repeat resections were performed. In both cases, no recurrent disease was noted on postoperative follow-up. One procedure-related complication (4.8%) occurred in 1 patient who was positioned prone. Recurrence to date was noted in 2 (14%) of the 14 cases with available postoperative follow-up at 3.5 and 4.7 months following resection with intraoperative angiography. The median follow-up time from intraoperative angiography to the most recent postoperative angiography was 1.1 years (range 4.3 months to 3.8 years).

Conclusions

Intraoperative angiography is an effective and safe adjunct for surgical management of cerebral AVMs in the pediatric population.

In开云手机版app下载安装最新版神经外科杂志:儿科开云体育app官方网站下载入口Volume 13 (2014): Issue 2 (Feb 2014)

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Intrarater and interrater reliability of the pediatric arteriovenous malformation compactness score in children

Clinical article

Fabio A. Frisoli, Shih-Shan Lang, Arastoo Vossough, Anne Marie Cahill, Gregory G. Heuer, Hisham M. Dahmoush, Phillip B. Storm, and Lauren A. Beslow

Object

脑动静脉畸形(avm)有一个higher postresection recurrence rate in children than in adults. The authors' previous study demonstrated that a diffuse AVM (low compactness score) predicts postresection recurrence. The aims of this study were to evaluate the intra- and interrater reliability of the AVM compactness score.

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Angiograms of 24 patients assigned a preoperative compactness score (scale of 1–3; 1 = most diffuse, 3 = most compact) in the authors' previous study were rerated by the same pediatric neuroradiologist 9 months later. A pediatric neurosurgeon, pediatric neuroradiology fellow, and interventional radiologist blinded to each other's ratings, the original ratings, and AVM recurrence also rated each AVM's compactness. Intrarater and interrater reliability were calculated using the κ statistic.

Results

Of the 24 AVMs, scores by the original neuroradiologist were 1 in 6 patients, 2 in 16 patients, and 3 in 2 patients. Intrarater reliability was 1.0. The κ statistic among the 4 raters was 0.69 (95% CI 0.44–0.89), which indicates substantial reliability. The interrater reliability between the neuroradiologist and neuroradiology fellow was moderate (κ = 0.59 [95%CI 0.20–0.89]) and was substantial between the neuroradiologist and neurosurgeon (κ = 0.74 [95% CI 0.41–1.0]). The neuroradiologist and interventional radiologist had perfect agreement (κ = 1.0).

Conclusions

Intrarater and interrater reliability of the AVM compactness score were excellent and substantial, respectively. These results demonstrate that the AVM compactness score is reproducible. However, the neuroradiologist and interventional radiologist had perfect agreement, which indicates that the compactness score is applied most accurately by those with extensive angiography experience.

In开云手机版app下载安装最新版神经外科杂志:儿科开云体育app官方网站下载入口Volume 11 (2013): Issue 5 (May 2013)

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Middle meningeal artery embolization in the management of chronic subdural hematoma in medically complex pediatric neurosurgical patients: technical note

Anne M. Coyle, Erin K. M. Graves, Shih-Shan Lang, Benjamin C. Kennedy, Tracy M. Flanders, Alexander M. Tucker, Phillip B. Storm, Anne Marie Cahill, Bryan A. Pukenas, and Peter J. Madsen

Middle meningeal artery (MMA) embolization has gained acceptance as a treatment for chronic subdural hematoma (cSDH) in adult patients but has not been well described in pediatric patients. Standard cSDH treatment has historically consisted of burr hole drainage with or without subdural drain placement. However, due to the high rate of recurrence and frequency of comorbidities within this population, as both pediatric and adult patients with cSDH frequently have concurrent cardiac disease and a need for anticoagulant therapies, MMA embolization has increasingly demonstrated its value as both an adjunctive and primary treatment. In this report, the authors present 3 cases of successful MMA embolization in medically complex children at a single institution. MMA embolization was used as a primary treatment modality and as an adjunctive therapy in the acute setting following surgical hematoma evacuation. Two patients were receiving anticoagulation treatment requiring reversal. Technical considerations specific to the pediatric population as well as those common to both the pediatric and adult populations are addressed. Further work is needed to define the optimal indications and outcomes for MMA embolization in children with cSDH.

In开云手机版app下载安装最新版神经外科杂志:儿科开云体育app官方网站下载入口Publish Before Print

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