Hemant Sonwalkar

ORCID: 0000-0003-4822-7338
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About
Contact & Profiles
Research Areas
  • Intracranial Aneurysms: Treatment and Complications
  • Cerebrovascular and Carotid Artery Diseases
  • Vascular Malformations Diagnosis and Treatment
  • Renal and Vascular Pathologies
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Moyamoya disease diagnosis and treatment
  • Neurological Complications and Syndromes
  • Radiology practices and education
  • Intracerebral and Subarachnoid Hemorrhage Research
  • Ocular Diseases and Behçet’s Syndrome
  • Vascular Tumors and Angiosarcomas
  • Sarcoma Diagnosis and Treatment
  • Aortic aneurysm repair treatments
  • COVID-19 and healthcare impacts
  • Management of metastatic bone disease
  • Renal Diseases and Glomerulopathies
  • Cervical and Thoracic Myelopathy
  • Alcoholism and Thiamine Deficiency
  • Artificial Intelligence in Healthcare and Education
  • Infectious Diseases and Tuberculosis
  • Biochemical Acid Research Studies
  • Brain Metastases and Treatment
  • Musculoskeletal synovial abnormalities and treatments
  • Vasculitis and related conditions
  • CNS Lymphoma Diagnosis and Treatment

Royal Preston Hospital
2012-2024

Thieme Medical Publishers (Germany)
2021-2024

Stony Brook University
2022

Neurological Surgery
2022

Shinshu University
2022

Lancashire Teaching Hospitals NHS Foundation Trust
2016-2022

Midas Multispeciality Hospital
2009

Sree Chitra Thirunal Institute for Medical Sciences and Technology
2004-2006

Institute of Medical Sciences
2004

The first and second generations of the Pipeline Embolization Device (PED) have been widely adopted for treatment intracranial aneurysms (IAs) due to their high associated occlusion rates low morbidity mortality. objective this study was evaluate safety effectiveness third- generation Shield device (PED-Shield) IAs.The SHIELD a prospective, single-arm, multicenter, post-market, observational evaluating PED-Shield IAs. primary efficacy endpoint complete aneurysm without significant parent...

10.1136/neurintsurg-2020-015943 article EN cc-by-nc Journal of NeuroInterventional Surgery 2020-06-01

Abstract Objectives To create a nationwide consortium to gather all the data related advanced devices used for aneurysm treatment and conduct pragmatic real-world studies despite variations amongst centres. The strength of this study will be in pooling less commonly recent where there is evidence. prospective retrospective initial recruitment figure expected around 5000 patients. Methods assess how endovascular techniques vary among different UK centres we illustrate results surveys that...

10.1093/bjr/tqaf094 article EN British Journal of Radiology 2025-04-26

The Pipeline Vantage Embolization Device (PEDV) is the fourth-generation pipeline flow diverter for intracranial aneurysm treatment. There are no outcome studies second PEDV version. We aimed to evaluate safety and efficacy outcomes. Primary secondary objectives were determine outcomes unruptured ruptured cohorts, respectively.

10.1136/jnis-2023-020754 article EN cc-by Journal of NeuroInterventional Surgery 2023-12-09

OBJECTIVE The use of flow-diverting stents has been increasingly important in intracranial aneurysm treatment. However, accurate sizing and landing zone prediction remain challenging. Inaccurate can lead to suboptimal deployment, device waste, complications. This study presents stent deployment length predictions offered medical software (PreSize Neurovascular) that provides physicians with real-time planning support, allowing them preoperatively "test" different devices the patient’s...

10.3171/2021.12.jns211687 article EN Journal of neurosurgery 2022-02-04

Subpial hematoma is a rare type of intracranial hemorrhage with poor prognosis. A new mechanism to explain subpial Sylvian formation in acute post-aneurysmal subarachnoid (SAH) was observed during coiling posterior communicating artery aneurysm. Multiple small bleeding points from pial branches the left middle cerebral artery, which were remote ruptured aneurysm, on conventional angiography. This led large expanding hematoma. Similar observations have been recently demonstrated 4D CT...

10.1136/neurintsurg-2016-012715.rep article EN Journal of NeuroInterventional Surgery 2016-11-22

The Raymond-Roy classification has been the standard for neck recurrences following endovascular coiling with three grades. Several modified systems subdivisions have reported in literature but it is unclear whether this adds value predicting recurrence or retreatment. Our aim to assess if these aid and need retreatment.A retrospective review of all patients undergoing between 2013 2014. Patients requiring stent assistance other embolization devices were excluded from study. residue was...

10.25259/sni_991_2021 article EN cc-by-nc-sa Surgical Neurology International 2022-04-29

Abstract Coronavirus disease 2019 (COVID-19) is a viral pneumonia that has plagued the world for much of first quarter 2020 and was recently declared global pandemic. The caregivers must be aware take steps to curb its transmission within premises our care settings (hospitals/clinics). In this article, we suggest few proactive can taken at institutional departmental levels break chain.

10.1055/s-0040-1710145 article EN cc-by-nc-nd Journal of Clinical Interventional Radiology ISVIR 2020-04-01

Subpial hematoma is a rare type of intracranial hemorrhage with poor prognosis. A new mechanism to explain subpial Sylvian formation in acute post-aneurysmal subarachnoid (SAH) was observed during coiling posterior communicating artery aneurysm. Multiple small bleeding points from pial branches the left middle cerebral artery, which were remote ruptured aneurysm, on conventional angiography. This led large expanding hematoma. Similar observations have been recently demonstrated 4D CT...

10.1136/bcr-2016-012715 article EN BMJ Case Reports 2016-11-17

We report an unusual case of complete agenesis the right internal carotid artery (ICA) with transsellar anastomosis from cavernous segment contralateral ICA and presence a posterior cerebral aneurysm aberrant origin subclavian artery.

10.1177/197140090401700505 article EN Rivista di Neuroradiologia 2004-10-01

Introduction Perianeurysmal Vasogenic Oedema (PAVO) is a rare but important complication of endovascular treatment intracranial aneurysms. Many potential risk factors have been identified including age, aneurysm size, location, immunological profile, type coil used, diabetes, hypertension, and smoking. PAVO can cause persistent post-procedural symptoms, subsequently increasing post-embolization morbidity. Methods A 10-year retrospective review was conducted between 2011 2021 at Royal Preston...

10.1177/19714009241269509 article EN The Neuroradiology Journal 2024-07-27

A rare case of multiple cerebral aneurysms associated with Takayasu aortitis is reported. Only seven cases have been reported so far, all which are from Japan. This the first this association being India. 50-year-old hypertensive woman developed sudden onset severe headache and loss consciousness. CT scan revealed subarachnoid haemorrhage in suprasellar cisterns mild hydrocephalus. The patient on admission had a rebleed producing massive haemorrhage. Angiogram occlusion bilateral vertebral...

10.1177/159101990401000307 article EN Interventional Neuroradiology 2004-09-01

Endovascular treatment of intracranial aneurysms is increasingly used and has evolved as an alternative to surgical clipping. However, its long-term efficacy yet be established. This retrospective hospital based (tertiary teaching hospital) study aimed identify factors that might important in predicting initial this a follow-up the clinical angiographic results treated aneurysms. A total 80 78 patients were analyzed, percentage occlusion calculated. Overall, 51/80 (64 %) cases with selective...

10.1177/197140090601900312 article EN The Neuroradiology Journal 2006-06-01

Strokes due to embolization from a cardiac myxoma are rare. Myxomatous cerebral emboli can cause occlusion of intracranial vessels or oncotic aneurysm formation. We describe case presenting with stroke having bilateral infarct and have characteristic CT, MR angiography findings, which well seen in this case. The pathogenesis, imaging features, clinical presentation natural history discussed.

10.1177/197140090401700409 article EN Rivista di Neuroradiologia 2004-08-01

<h3></h3> Primary central nervous system (PCNS) PTLD is a very rare complication that occurs as result of immunosuppression in the setting solid organ transplantation. The median time from transplantation to diagnosis ranges 1 4.4 years. We herein describe case patient who developed EBV-positive PCNS approximately 12 years post renal transplant. A 50-year-old lady presented with 12-week history generalised throbbing headache, progressive vertigo, nausea and vomiting. Twelve previously, she...

10.1136/jnnp-2011-301993.131 article EN Journal of Neurology Neurosurgery & Psychiatry 2012-02-09

A case of thoracic spinal cord compression caused by intradural extramedullary fungal granulomatous lesion associated with acute lymphatic leukaemia is presented. The specific diagnosis on imaging was difficult and required specialized histopathological studies. high index clinical suspicion infection, surgical decompression cord, tissue biopsy confirmation are particular features our case.

10.1177/197140090401700411 article EN Rivista di Neuroradiologia 2004-08-01

Dysgenesis of the internal carotid artery is a rare congenital variation that mostly asymptomatic. The key to imaging diagnosis identification narrow bony canal. Dysgenetic hindrance for endovascular access ipsilateral intracranial anterior circulation, timely and differentiation from collapsed ICA secondary occlusion can help guide mechanical thrombectomy via embryonic collateral routes which are usually prominent in those individuals. We describe patient with hyperacute ischemic stroke...

10.4103/aian.aian_22_22 article EN cc-by-nc-sa Annals of Indian Academy of Neurology 2022-04-06
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