{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T23:42:49Z","timestamp":1785368569075,"version":"3.55.0"},"reference-count":72,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9,1]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Laser interstitial thermal therapy (LITT) has emerged as a minimally invasive treatment for primary CNS tumors. While LITT offers advantages over traditional approaches, perilesional intracranial heatsinks can lead to asymmetrical ablation, impacting patient outcomes. Understanding heatsink effects is crucial for optimizing LITT efficacy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>The authors retrospectively analyzed primary CNS tumors treated with LITT at a single tertiary care center. Ablation outcomes were quantified using the Heatsink Effect Index (HEI), measured on a scale of 0\u20131 (0 = total symmetry, 1 = complete asymmetry), and extent of ablation (EOA). The heatsink types evaluated were sulci, meninges, vasculature, and CSF spaces, inclusive of ventricles, resection cavities, and CSF cisterns. Statistical analyses were performed to assess the relationship between heatsink proximity and type and ablation outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>A total of 99 patients satisfied all selection criteria. The cohort was 53% female, with a mean age of 61 years. Glioblastoma was the most predominant tumor type (78%), followed by low-grade glioma (15%) and meningioma (4%). Heatsink proximity significantly correlated with ablation asymmetry (HEI) (p &lt; 0.001), particularly at the midpoint of the catheter trajectory. The correlation between closest heatsink distance and HEI varied across the different heatsink types, with distance to vasculature and CSF spaces correlating the strongest with ablation asymmetry. When assessing the relationship between EOA and medial HEI during suboptimal ablations (EOA &lt; 100%), a negative correlation was demonstrated, showing improved EOA as HEI was reduced. Optimal cutoff catheter-heatsink distances for predicting ablation asymmetry ranged from 6.6 to 13.0 mm, emphasizing the impact of heatsink proximity on LITT efficacy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>This study shows that proximity to heatsinks, especially within a threshold distance of 13.0 mm from the laser catheter, significantly predicts ablation asymmetry and volume in the setting of primary CNS tumors. Vasculature and CSF spaces demonstrate the strongest heatsink effects. Neurosurgeons should consider heatsink effects in pre- and intraoperative planning to optimize LITT outcomes and preserve normal brain tissue.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2025.1.jns241377","type":"journal-article","created":{"date-parts":[[2025,5,23]],"date-time":"2025-05-23T21:54:19Z","timestamp":1748037259000},"page":"818-828","source":"Crossref","is-referenced-by-count":3,"title":["The impact of perilesional heatsink structures on ablation volumes and symmetry in laser interstitial thermal therapy for the treatment of primary central nervous system tumors"],"prefix":"10.3171","volume":"143","author":[{"given":"Chandler N.","family":"Berke","sequence":"first","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cameron A.","family":"Rivera","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shovan","family":"Bhatia","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"},{"name":"Department of Neurological Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Levi","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adham M.","family":"Khalafallah","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victor M.","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kate","family":"Stillman","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chase","family":"DeLong","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eric","family":"Singh","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adam","family":"Levy","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashish H.","family":"Shah","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ricardo J.","family":"Komotar","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael E.","family":"Ivan","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida; and"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"2","key":"b1","series-title":"Neurosurg Clin N Am","first-page":"247","article-title":"Laser interstitial thermal therapy for epilepsy","volume":"34","author":"Van Gompel JJ","year":"2023","unstructured":"Van Gompel JJ, Burkholder DB, Parker JJ,  Laser interstitial thermal therapy for epilepsy. 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The use of stereotactic MRI-guided laser interstitial thermal therapy for the treatment of pediatric cavernous malformations: the SUNY Upstate Golisano Children\u2019s Hospital experience. Childs Nerv Syst. 2023;39(2):417\u2013424."},{"issue":"2","key":"b4","series-title":"J Neurooncol","first-page":"265","article-title":"Laser interstitial thermal therapy for deep-seated perivascular brain tumors is not associated with distal ischemia","volume":"166","author":"Reese JC","year":"2024","unstructured":"Reese JC, Fadel HA, Pawloski JA,  Laser interstitial thermal therapy for deep-seated perivascular brain tumors is not associated with distal ischemia. 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