PMID- 31200377 OWN - NLM STAT- Publisher LR - 20240227 IS - 1933-0693 (Electronic) IS - 0022-3085 (Linking) DP - 2019 Jun 14 TI - Significance of degree of neurovascular compression in surgery for trigeminal neuralgia. PG - 1-6 LID - 2019.3.JNS183174 [pii] LID - 10.3171/2019.3.JNS183174 [doi] AB - OBJECTIVE: The aim of this study was to identify preoperative imaging predictors of surgical success in patients with classic trigeminal neuralgia (cTN) undergoing microvascular decompression (MVD) via retrospective multivariate regression analysis. METHODS: All included patients met criteria for cTN and underwent preoperative MRI prior to MVD. MR images were blindly graded regarding the presence and severity (i.e., mild or severe) of neurovascular compression (NVC). All patients were contacted by telephone to determine their postoperative pain status. RESULTS: A total of 79 patients were included in this study. Sixty-two patients (78.5%) were pain-free without medication following MVD. The following findings were more commonly observed with the symptomatic nerve when compared to the contralateral asymptomatic nerve: NVC (any form), arterial compression alone, NVC along the proximal trigeminal nerve, and severe NVC (p values < 0.0001). The only imaging variable that was a statistically significant predictor of being pain-free without medication following MVD was severe NVC. Patients with severe NVC were 6.36 times more likely to be pain-free following MVD compared to those without severe NVC (p = 0.007). CONCLUSIONS: In patients with cTN undergoing MVD, severe NVC on preoperative MRI is a strong predictor of an excellent surgical outcome. FAU - Hughes, Marion A AU - Hughes MA AD - Departments of1Radiology. FAU - Jani, Ronak H AU - Jani RH AD - 2Neurosurgery, and. FAU - Fakhran, Saeed AU - Fakhran S AD - Departments of1Radiology. FAU - Chang, Yue-Fang AU - Chang YF AD - 2Neurosurgery, and. FAU - Branstetter, Barton F AU - Branstetter BF AD - Departments of1Radiology. FAU - Thirumala, Parthasarathy D AU - Thirumala PD AD - 3Neurology, University of Pittsburgh School of Medicine and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania. FAU - Sekula, Raymond F AU - Sekula RF AD - 2Neurosurgery, and. LA - eng PT - Journal Article DEP - 20190614 PL - United States TA - J Neurosurg JT - Journal of neurosurgery JID - 0253357 SB - IM OTO - NOTNLM OT - IHS = International Headache Society OT - MVD = microvascular decompression OT - NVC = neurovascular compression OT - SSFP = steady-state free precession OT - cTN = classic trigeminal neuralgia OT - functional neurosurgery OT - imaging OT - microvascular decompression OT - neurovascular compression OT - pain OT - surgical outcome OT - trigeminal neuralgia EDAT- 2019/06/15 06:00 MHDA- 2019/06/15 06:00 CRDT- 2019/06/15 06:00 PHST- 2018/11/09 00:00 [received] PHST- 2019/03/19 00:00 [accepted] PHST- 2019/06/15 06:00 [pubmed] PHST- 2019/06/15 06:00 [medline] PHST- 2019/06/15 06:00 [entrez] AID - 2019.3.JNS183174 [pii] AID - 10.3171/2019.3.JNS183174 [doi] PST - aheadofprint SO - J Neurosurg. 2019 Jun 14:1-6. doi: 10.3171/2019.3.JNS183174.