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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.
World J Clin Cases. Apr 16, 2026; 14(11): 119896
Published online Apr 16, 2026. doi: 10.12998/wjcc.v14.i11.119896
Transient drooping lid after scalp block during deep brain stimulation for Parkinson’s disease: A case report
Anil Kumar Sharma, Dasari Subha Priyanka, Rohit Patnaik, Nupur Karan
Nupur Karan, Dasari Subha Priyanka, Anil Kumar Sharma, Department of Anaesthesiology, All India Institute of Medical Sciences, Raipur 492099, Chhattisgarh, India
Rohit Patnaik, Department of Critical Care Medicine, Medeor 24x7 Hospital, Abu Dhabi 40330, United Arab Emirates
Author contributions: Karan N wrote the original draft; Karan N and Patnaik R contributed to the conceptualization, writing, reviewing, and editing; Karan N, Patnaik R, Priyanka DS and Sharma AK participated in drafting the manuscript; all authors have read and approved the final version of the manuscript.
Informed consent statement: Informed written consent was obtained from the patient for publication of this report and any accompanying images.
Conflict-of-interest statement: The authors report no relevant conflicts of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Corresponding author: Rohit Patnaik, DM, MD, Department of Critical Care Medicine, Medeor 24x7 Hospital, Al Falah Street Al Danah Zone 1, Abu Dhabi 40330, United Arab Emirates. rohitpatnaik09@gmail.com
Received: February 10, 2026
Revised: February 19, 2026
Accepted: March 11, 2026
Published online: April 16, 2026
Processing time: 58 Days and 13.5 Hours
Abstract
BACKGROUND

Scalp block is a well-established regional anaesthetic technique in neurosurgery, particularly for awake procedures such as deep brain stimulation (DBS). While generally safe, rare complications can occur.

CASE SUMMARY

This report details a case of a 39-year-old male with drug-refractory Parkinson’s disease who developed unilateral complete ptosis following a scalp block administered for awake bilateral subthalamic nucleus DBS. The ptosis resolved spontaneously within 12 hours without intervention.

CONCLUSION

This case underscores the importance of understanding the anatomical basis of scalp innervation and the potential for rare complications.

Keywords: Nerve block; Ptosis; Deep brain stimulation; Parkinson’s disease; Neurosurgical procedures; Facial nerve; Case report

Core Tip: This case report describes a rare case of transient unilateral ptosis occurring during awake deep brain stimulation (DBS) following a scalp block. A 39-year-old man undergoing bilateral subthalamic nucleus DBS developed complete left-sided ptosis 30 minutes after local anaesthetic infiltration, with normal ocular movements and pupillary responses. Imaging excluded surgical complications, and the ptosis resolved spontaneously within 12 hours. The report highlights how inadvertent spread of local anaesthetic along subgaleal or periorbital planes, or transient facial nerve involvement, can mimic neurologic injury. Recognizing this benign, self-limiting complication helps avoid unnecessary interventions during awake neurosurgical procedures.