Pankajavalli Ramakrishnan

ORCID: 0000-0003-1576-2772
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About
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Research Areas
  • Acute Ischemic Stroke Management
  • Cerebrovascular and Carotid Artery Diseases
  • Stroke Rehabilitation and Recovery
  • Intracranial Aneurysms: Treatment and Complications
  • COVID-19 and healthcare impacts
  • Peripheral Artery Disease Management
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Long-Term Effects of COVID-19
  • Venous Thromboembolism Diagnosis and Management
  • Moyamoya disease diagnosis and treatment
  • Climate Change and Health Impacts
  • Cerebrospinal fluid and hydrocephalus
  • Neurological Complications and Syndromes
  • Pharmacological Effects and Toxicity Studies
  • Vascular Malformations Diagnosis and Treatment
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Infectious Diseases and Tuberculosis
  • Neurosurgical Procedures and Complications
  • Bacterial Infections and Vaccines
  • Signaling Pathways in Disease
  • Neurological Disease Mechanisms and Treatments
  • Oropharyngeal Anatomy and Pathologies
  • Nerve injury and regeneration
  • Case Reports on Hematomas
  • Cerebral Venous Sinus Thrombosis

MidHudson Regional Hospital
2025

Health Net
2025

Westchester Medical Center
2025

Riverside Regional Medical Center
2017-2024

Velammal Medical College Hospital and Research Institute
2023

Sri Ramachandra Institute of Higher Education and Research
2023

Newport (United States)
2023

Boston Medical Center
2021-2022

Boston University
2021-2022

Hospital de Clínicas de Porto Alegre
2021

Raul G. Nogueira Mohamad Abdalkader Muhammed M. Qureshi Michael Frankel Malek Mansour and 95 more Hiroshi Yamagami Zhongming Qiu Mehdi Farhoudi James E. Siegler Shadi Yaghi Eytan Raz Nobuyuki Sakai Nobuyuki Ohara Michel Piotin Laura Mechtouff Omer Eker Vanessa Chalumeau Timothy Kleinig Raoul Pop Jianmin Liu Hugh Stephen Winters Xianjin Shang Alejandro Rodriguez Vasquez Jordi Blasco Juan F. Arenillas Mario Martínez‐Galdámez Alex Brehm Marios‐Nikos Psychogios Pedro Lylyk Diogo C Haussen Alhamza R Al‐Bayati Mahmoud Mohammaden Luísa Fonseca M Luís Silva F. Mont’alverne Leonardo Renieri Salvatore Mangiafico Urs Fischer Jan Gralla Donald Frei Chandril Chugh Brijesh Mehta Simon Nagel Markus Möhlenbruch Santiago Ortega‐Gutiérrez Mudassir Farooqui Ameer E Hassan Allan Taylor Bertrand Lapergue Arturo Consoli Bruce Campbell Malveeka Sharma Melanie Walker Noel van Horn Jens Fiehler Huy Thang Nguyen Nguyễn Quốc Trung Daisuke Watanabe Hao Zhang Huynh Vu Le Viet Q. Nguyen Ruchir Shah Thomas Devlin Priyank Khandelwal Italo Linfante Wazim Izzath Pablo M. Lavados Verónica V. Olavarría Gisele Sampaio Silva Anna Verena de Carvalho Sousa Jawad F. Kirmani Martin Bendszus Tatsuo Amano Ryoo Yamamoto Ryosuke Doijiri Naoki Tokuda Takehiro Yamada Tadashi Terasaki Yukako Yazawa Jane G. Morris Emma Griffin John Thornton Pascale Lavoie Charles Matouk Michael D. Hill Andrew M. Demchuk Monika Killer‐Oberpfalzer Fadi Nahab Dorothea Altschul Anna Ramos‐Pachón Natàlia Pérez de la Ossa Raghid Kikano William Boisseau Gregory Walker Steve M Cordina Ajit S Puri Anna Luisa Kühn Dheeraj Gandhi Pankajavalli Ramakrishnan Roberta Novakovic‐White

The COVID-19 pandemic led to profound changes in the organization of health care systems worldwide.We sought measure global impact on volumes for mechanical thrombectomy, stroke, and intracranial hemorrhage hospitalizations over a three-month period at height (1 March-31 May 2020) compared with two control periods (immediately preceding one year prior).Retrospective, observational, international study, across 6 continents, 40 countries, 187 comprehensive stroke centers. diagnoses were...

10.1177/1747493021991652 article EN cc-by International Journal of Stroke 2021-01-18

Benign familial neonatal convulsions (BFNC), a class of idiopathic generalized epilepsy, is an autosomal dominantly inherited disorder newborns. BFNC has been linked to mutations in two putative K+ channel genes, KCNQ2 andKCNQ3. Amino acid sequence comparison reveals that both genes share strong homology KvLQT1, the potassium encoded byKCNQ1, which responsible for over 50% long QT syndrome. Here we describe cloning, functional expression, and characterization channels byKCNQ2 KCNQ3 cDNAs....

10.1074/jbc.273.31.19419 article EN cc-by Journal of Biological Chemistry 1998-07-01

Objective: To determine the association between a composite measure of serological test results for common infections (Chlamydia pneumoniae, Helicobacter pylori, cytomegalovirus, and herpes simplex virus 1 2) stroke risk in prospective cohort study.Design: Prospective followed up longitudinally median 8 years.Setting: Northern Manhattan Study.Patients: Randomly selected stroke-free participants from multiethnic urban community.Main Outcome Measure: Incident other vascular events.Results: All...

10.1001/archneurol.2009.271 article EN Archives of Neurology 2009-11-10

Global disparities in stroke care, particularly acute interventions like mechanical thrombectomy (MT), remain profound, with the Mechanical Thombectomy Access for Stroke study reporting a median global MT access of just 2.79%. Furthermore, low- and middle-income countries (LMICs) have been recognized to be disproportionately burdened this regard as compared high-income countries. These observed inequities care impact not only clinical outcomes but also economic productivity social systems....

10.1097/crd.0000000000000914 article EN Cardiology in Review 2025-04-04

Aneurysmal subarachnoid hemorrhage is one of the feared stroke subtypes with a high degree morbidity and mortality. Even after initial treatment ruptured aneurysm, patients remain critically ill due to numerous neurologic systemic sequalae. Among them cerebral vasospasm, which key contributor in development delayed ischemia (DCI). Whereas prevention DCI oral nimodipine standard care, neurointerventional strategies management are varied. Chemical angioplasty intra-arterial vasodilators has...

10.1097/crd.0000000000000921 article EN PubMed 2025-04-17

Reversible cerebral vasoconstriction syndrome presents with thunderclap headaches accompanied by mild neurologic deficits and is characterized multifocal narrowing of the arteries that resolves over days to weeks. This may be idiopathic or occur in special contexts, most often involving adrenergic serotonergic overactivity. To best our knowledge, reversible has not previously been reported association Hydroxycut use literature.We report case a 65-year-old Caucasian woman on longstanding...

10.1186/1752-1947-5-548 article EN cc-by Journal of Medical Case Reports 2011-11-10

Background and Purpose: Recent randomized clinical trial (RCTs) demonstrated efficacy of mechanical thrombectomy using stent-retrievers in acute ischemic stroke (AIS) patients. The main purpose TRevo ACute Ischemic StroKe (TRACK) stent-retriever multicenter registry is to demonstrate safety real life practice. Methods: investigator-initiated TRACK recruited 24 sites north America submit demographic, clinical, site-adjudicated angiographic, outcome data on consecutive AIS patients treated...

10.1161/str.47.suppl_1.wmp8 article EN Stroke 2016-02-01

<h3>Background</h3> The MR CLEAN multicenter randomized clinical trial demonstrated the safety and effectiveness of intra-arterial treatment within 6 h after stroke onset in patients with acute ischemic (AIS) caused by proximal intracranial occlusion anterior circulation. <h3>Objective</h3> To present angiographic outcomes a CLEAN-like population real-world TREVO Stent-Retriever Acute Stroke (TRACK) Post-marketing Registry assess its performance relative to population....

10.1136/neurintsurg-2015-011917.130 article EN 2015-07-01

<h3>Background</h3> Real life practice can differ significantly from &nbsp;criteria in randomized clinical trials (RCT), including patient population, treatment criteria, and broader times. &nbsp;Distinguishing device performance these two different &nbsp;scenarios is critical applying RCT data to routine practice. <h3>Objective</h3> The TREVO Stent-Retriever Acute Stroke (TRACK) Registry aimed assess the real-world safety, angiographic, efficacy of comparison results TREVO-2 trial....

10.1136/neurintsurg-2015-011917.8 article EN 2015-07-01

Introduction Public stroke education campaigns have traditionally utilized mass media. We hypothesized that a worldwide awareness social media campaign, utilizing dance videos to express the BE‐FAST acronym for signs and symptoms, could reach large audience at low cost. Methods Mission Thrombectomy 2020+ officially launched #BEFASTChallenge, Social Media (SoMe) public educational on May 15, 2022, World Stroke Day, after an internal “lead‐in” phase starting first week of 2022. The campaign...

10.1161/svin.03.suppl_1.203 article EN Stroke Vascular and Interventional Neurology 2023-03-01

Introduction Subarachnoid hemorrhage patients presenting with complex morphology, and those dissecting /fusiform aneurysms, blister aneurysms have historically posed a challenge for acute endovascular treatment. Flow diversion as treatment ruptured intracranial is last resort given the need dual antiplatelet therapy in setting. Methods We present our single center experience, real world experience of subarachnoid pipeline flow device. Results 6 presented acutely hemorrhage. Two had saccular...

10.1161/svin.03.suppl_1.199 article EN Stroke Vascular and Interventional Neurology 2023-03-01

Pulmonary nocardiosis is a rare infectious disorder mainly affecting immunocompromised patients. It may remain cryptic which gradually progresses in its course. Our patient was 37 years old immunocompetent female who presented with radiological picture of left upper lobe opacification. She treated empirical anti tuberculosis treatment outside, no improvement seen. After she reported here, evaluated bronchoscopy biopsy and bronchial wash culture showed Nocardia species. managed...

10.17727/jmsr.2023/11-44 article EN cc-by Journal of Medical and Scientific Research 2023-07-01

<h3>Introduction</h3> Platelet reactivity measurements are commonly utilized in the perioperative phase of neurointerventional stenting procedures. Reliability and clinical decision strategies based on test results have been controversial. We examined fluctuations platelet response to Aspirin Clopidogrel treatment day procedure postoperative one. <h3>Methods</h3> Medical records patients undergoing neuroendovascular procedures at our institution between 2012 2016 were included if available...

10.1136/neurintsurg-2017-snis.67 article EN 2017-07-01

Introduction: Few reports have compared the commonly used technical approaches of stentriever, suction thrombectomy, and combined technique, particularly with emphasis on thrombus volume, fragmentation, distal embolization, clinical outcome. Methods: Medical records radiographic images patients undergoing endovascular stroke therapy at our institution between 2014 2015 were reviewed for following data points: Patient age, sex, NIH scale (NIHSS) presentation, number passes, presence...

10.1161/str.48.suppl_1.wp23 article EN Stroke 2017-02-01

Introduction: Although mechanical thrombectomy (MT) is the standard of care for patients with acute ischemic stroke due to emergent large vessel occlusion (ELVO), few remain eligible MT pre-hospital delays and presentation non-MT capable hospitals. Emergence in field screening tools have allowed EMS reliably identify likely ELVO, thus facilitating their direct triage hospitals prompt thrombectomy. Methods: In collaboration Peninsulas Council (PEMS), we implemented a community based pilot...

10.1161/str.49.suppl_1.tp239 article EN Stroke 2018-01-22
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