Esteban Ramirez Ferrer

Dr. Esteban Ramirez Ferrer

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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2 September 2025 in Complications
Verified
Journal Article
Open access
PDF file
JZJuan Pablo Zuluaga-Garcia
Juan Pablo Zuluaga-Garcia
MDMaria Alejandra Sierra Delgado
Maria Alejandra Sierra Delgado
FCFrancisco Call-Orellana
Francisco Call-Orellana
DHDavid Herrera
David Herrera
RARomulo Augusto Andrade de Almeida
Romulo Augusto Andrade de Almeida
EFEsteban Ramirez Ferrer
Esteban Ramirez Ferrer
Percutaneous vertebroplasty (PVP) has emerged as a key intervention for painful vertebral compression fractures in osteoporotic and metastatic disease, but its safety profile warrants comprehensive evaluation. We conducted a PRISMA-compliant systematic review of studies published between 2009 and 2024, identifying 15 clinical studies (n ≈ 8500 patients) that reported PVP-related complications in adults with osteoporotic or neoplastic fractures. Data extraction focused on complication incidence, presentation, imaging findings, risk factors, and management strategies. Cement leakage was the most frequently detected event (20–70% of levels, higher in neo-plastic lesions), yet symptomatic neural or vascular sequelae occurred in <1%. Pulmonary cement embolism appeared on imaging in 2–26% of cases but was clinically evident in ≤0.5%, with conservative management or brief anticoagulation sufficing for most patients. New vertebral fractures developed in 8–20% of osteoporotic and up to 30% of metastatic cohorts, paralleling underlying bone fragility rather than PVP itself. Postprocedural infection (0.2–0.5%) and neurologic injury (<0.5%) were uncommon but required prompt surgical and antibiotic interventions. Overall, PVP’s benefits—rapid pain relief and mechanical stabilization—outweigh its risks when performed with meticulous technique, vigilant imaging, and multidisciplinary follow-up, confirming its favorable safety profile in both osteoporosis and spinal malignancy.

13 November 2025 in Journal of Clinical Medicine
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Journal Article
Open access
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GKGil Kimchi
Gil Kimchi
SVSamantha Varela
Samantha Varela
JZJuan Pablo Zuluaga-Garcia
Juan Pablo Zuluaga-Garcia
FCFrancisco Call-Orellana
Francisco Call-Orellana
EFEsteban Ramirez Ferrer
Esteban Ramirez Ferrer
CTClaudio E. Tatsui
Claudio E. Tatsui
Objective: Intramedullary melanocytomas are extremely rare spinal cord tumors with distinct histopathological and imaging characteristics. This report reviews the literature on this pathology and presents a representative case study, highlighting aspects of diagnosis and management. Methods: A scoping review of PubMed, Web of Science, and Embase databases was conducted to identify reports on intramedullary melanocytomas, focusing on clinical presentation, imaging features, histopathology, treatment, and outcomes. Case reports and case series were included due to the rarity of these tumors. Results: Twelve manuscripts met the inclusion criteria, including 15 patients. In the majority of patients, intramedullary melanocytomas present with progressive myelopathy and pain. Most common MRI findings include hyperintensity on T1-weighted images, iso- to hypointensity on T2-weighted images, and homogeneous contrast enhancement. Intralesional cysts and associated syrinx are common. Gross total resection (GTR) remains the primary treatment, but complete removal is often challenging due to tumor adherence to neural structures. Conclusions: Intramedullary melanocytomas require careful diagnosis and management due to their diagnostic overlap with malignant melanoma and potential for recurrence. While GTR is the mainstay of treatment, long-term surveillance is warranted due to high recurrence rates. Further research is needed to define the natural history of the disease and establish optimal therapeutic strategies.

29 July 2022 in Surgical Neurology International
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Journal Article
Open access
EFEsteban Ramirez Ferrer
Esteban Ramirez Ferrer
JAJuan Felipe Abaunza-Camacho
Juan Felipe Abaunza-Camacho
APAndres Felipe Pineda-Martinez
Andres Felipe Pineda-Martinez
MAMaria Paula Aguilera-Pena
Maria Paula Aguilera-Pena
WRWilliam Mauricio Riveros-Castillo
William Mauricio Riveros-Castillo
LLLeonardo Laverde-Frade
Leonardo Laverde-Frade
Background: Posttraumatic spinal cerebrospinal fluid leak (CSFL) without neurological deficit is a rare entity. Historically, the first-line treatment is a nonsurgical approach, which includes Trendelenburg positioning, carbonic anhydrase inhibitor (acetazolamide), and subarachnoid catheter, with a high successful rate of leak correction. However, in some cases, this first-line treatment could fail, being necessary the surgical approach. Case Description: A 23-year-old male with a recent stab wound to his lumbar region, complained of positional headache and fluid outflow through his wound. On physical examination, an active CSFL was detected without evidence of neurologic deficit. Imaging studies showed a CSF collection extending from the right L4 lamina to the subcutaneous tissue. CSF studies revealed bacterial meningitis. The treatment with carbonic anhydrase inhibitors, Trendelenburg position, lumbar subarachnoid catheter, and antibiotics was initiated. Failure of conservative measures prompted a surgical treatment to resolve the CSFL. Intraoperatively, a dura mater defect was identified, and an autologous paravertebral muscle flap was used for water-tight closure of the defect. The patient recovered without further complications and with CSFL resolution. Conclusion: Even though the nonsurgical approach is the first-line of treatment of traumatic CSFL cases, failures can occur. The evidence of a CSF trajectory in imaging studies could be a predictor of treatment failure of the nonsurgical treatment. The surgical treatment as second-line treatment has outstanding results regarding CSFL correction and should be considered when the prediction rate to nonsurgical approach failure is high.

19 June 2025 in Journal of Neuro-Oncology
Verified
Journal Article
Closed access
JZJuan Pablo Zuluaga-Garcia
Juan Pablo Zuluaga-Garcia
EFEsteban Ramirez Ferrer
Esteban Ramirez Ferrer
SPSophie Peeters
Sophie Peeters
FDFranco DeMonte
Franco DeMonte
SRShaan M. Raza
Shaan M. Raza

12 August 2025 in Journal of Neuro-Oncology
Verified
Journal Article
Closed access
PDF file
EFEsteban Ramirez Ferrer
Esteban Ramirez Ferrer
JZJuan Pablo Zuluaga-Garcia
Juan Pablo Zuluaga-Garcia
JAJuan Diego Alzate
Juan Diego Alzate
JMJuliana Mayorga-Corvacho
Juliana Mayorga-Corvacho
MDMaria Alejandra Sierra Delgado
Maria Alejandra Sierra Delgado
MRMauricio Riveros-Castillo
Mauricio Riveros-Castillo