Cristin Georgiana Buzatu

Dr. Cristin Georgiana Buzatu

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

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

Representative Publications

View All Publications
23 September 2022 in Life
Verified
Journal Article
Open access
PDF file
CBCristin Georgiana Buzatu
Cristin Georgiana Buzatu
Bobirca FlorinBobirca Florin
Bobirca Florin
Isac SebastianIsac Sebastian
Isac Sebastian
OMOana Antonia Mihalache
Oana Antonia Mihalache
MCMihail Cotorogea
Mihail Cotorogea
Droc GabrielaDroc Gabriela
Droc Gabriela
Background: As the COVID-19 pandemic reached its peak, it became unavoidable that patients with other risk factors for severe pulmonary impairment (such as neuromuscular illnesses) would become afflicted. While the subject of myasthenic crisis secondary to COVID-19 pneumonia represents an interesting topic in the literature, we could not find consistent data that include, as a novel therapeutic approach, both intravenous immunoglobulin and plasma exchange therapy for the treatment of these two concurrent diseases. Case summary: A 69-year-old man with known seropositive generalized myasthenia gravis, hypertension, ischaemic heart disease, NYHA class II-III heart failure, cerebrovascular disease, and recurrent urinary tract infections, was admitted to the ICU for mixed acute respiratory failure, elevated serum lactate and liver function enzymes, and severe thrombocytopenia. A SARS-CoV-2 PCR test was positive, despite a previous COVID-19 pneumonia episode, 10 months prior to the current one. The patient had a recent ICU admission for a myasthenic crisis, which required non-invasive mechanical ventilation and intravenous immunoglobulin therapy. He received supportive therapy, as well as etiological (intravenous remdesivir, plasmapheresis and intravenous dexamethasone). Fifteen days after admission, the patient was transferred to the neurological ward, whence he left 20 days later, with no apparent sequelae. Conclusions: Subsequent intravenous immunoglobulins and plasma exchange therapy appear to be effective and safe in patients with simultaneous acute myasthenic episode and COVID-19 pneumonia.

10 July 2025 in Life
Verified
Journal Article
Open access
PDF file
CBCristin Georgiana Buzatu
Cristin Georgiana Buzatu
Isac SebastianIsac Sebastian
Isac Sebastian
GTGeani Danut Teodorescu
Geani Danut Teodorescu
TITeodora Isac
Teodora Isac
CMCristina Martac
Cristina Martac
Droc GabrielaDroc Gabriela
Droc Gabriela
Introduction: Methadone, a synthetic opioid used for opioid substitution therapy (OST), is typically associated with arrhythmias rather than direct myocardial depression. Neurological complications, especially with concurrent antipsychotic use, have also been reported. Acute left ventricular failure in young adults is uncommon and often linked to genetic or infectious causes. We present a rare case of reversible cardiogenic shock and cerebellar insult due to methadone toxicity. Case Presentation: A 37-year-old man with a history of drug abuse on OST with methadone (130 mg/day) was admitted to the ICU with hemodynamic instability, seizures, and focal neurological deficits. Diagnostic workup revealed low cardiac output syndrome and a right cerebellar insult, attributed to methadone toxicity. The patient received individualized catecholamine support. After 10 days in the ICU, he was transferred to a general ward for ongoing cardiac and neurological rehabilitation and discharged in stable condition seven days later. Conclusions: Methadone-induced reversible left ventricular failure, particularly when accompanied by cerebellar insult, is rare but potentially life-threatening. Early recognition and multidisciplinary management are essential for full recovery in such complex toxicological presentations.

26 April 2023 in Medicina
Verified
Journal Article
Open access
PDF file
Droc GabrielaDroc Gabriela
Droc Gabriela
CMCristina Martac
Cristina Martac
CBCristin Georgiana Buzatu
Cristin Georgiana Buzatu
MJMiruna Andreea Jipa
Miruna Andreea Jipa
MPMaria Daniela Punga
Maria Daniela Punga
Isac SebastianIsac Sebastian
Isac Sebastian
(1) Introduction: Liver transplantation represents the gold-standard therapy in eligible patients with acute liver failure or end-stage liver disease. The COVID-19 pandemic dramatically affected the transplantation landscape by reducing patients’ addressability to specialized healthcare facilities. Since evidence-based acceptance guidelines for non-lung solid organ transplantation from SARS-CoV-2 positive donors are lacking, and the risk of bloodstream-related transmission of the disease is debatable, liver transplantation from SARS-CoV-2 positive donors could be lifesaving, even if long-term interactions are unpredictable. The aim of this case report is to highlight the relevance of performing liver transplantation from SARS-CoV-2 positive donors to negative recipients by emphasizing the perioperative care and short-term outcome. (2) Case presentation: A 20-year-old female patient underwent orthotropic liver transplantation for Child-Pugh C liver cirrhosis secondary to overlap syndrome, from a SARS-CoV-2 positive brain death donor. The patient was not infected nor vaccinated against SARS-CoV-2, and the titer of neutralizing antibodies against the spike protein was negative. The liver transplantation was performed with no significant complications. As immunosuppression therapy, the patient received 20 mg basiliximab (Novartis Farmacéutica S.A., Barcelona, Spain) and 500 mg methylprednisolone (Pfizer Manufacturing Belgium N.V, Puurs, Belgium) intraoperatively. Considering the risk of non-aerogene-related SARS-CoV-2 reactivation syndrome, the patient received remdesivir 200 mg (Gilead Sciences Ireland UC, Carrigtohill County Cork, Ireland) in the neo-hepatic stage, which was continued with 100 mg/day for 5 days. The postoperative immunosuppression therapy consisted of tacrolimus (Astellas Ireland Co., Ltd., Killorglin, County Kerry, Ireland) and mycophenolate mofetil (Roche România S.R.L, Bucharest, Romania) according to the local protocol. Despite the persistent negative PCR results for SARS-CoV-2 in the upper airway tract, the blood titer of neutralizing antibodies turned out positive on postoperative day 7. The patient had a favorable outcome, and she was discharged from the ICU facility seven days later. (3) Conclusions: We illustrated a case of liver transplantation of a SARS-CoV-2 negative recipient, whose donor was SARS-CoV-2 positive, performed in a tertiary, university-affiliated national center of liver surgery, with a good outcome, in order to raise the medical community awareness on the acceptance limits in the case of COVID-19 incompatibility for non-lung solid organs transplantation procedures.

6 August 2026 in Preprints.org
Verified
Preprint
Open access
PDF file
CBCristin Georgiana Buzatu
Cristin Georgiana Buzatu
Isac SebastianIsac Sebastian
Isac Sebastian
GTGeani Danut Teodorescu
Geani Danut Teodorescu
ABAndrada Georgiana Badea
Andrada Georgiana Badea
TITeodora Isac
Teodora Isac
Mircea-Catalin FortofoiuMircea-Catalin Fortofoiu
Mircea-Catalin Fortofoiu
Sepsis and septic shock remain major causes of mortality worldwide, affecting approximately 49 million people annually and accounting for an estimated 11 million deaths, representing nearly 20% of all global deaths. Despite sustained efforts in early diagnosis and treatment, sepsis continues to impose a substantial global health burden. Sepsis is defined as a life-threatening organ dysfunction secondary to a dysregulation of the host response to infection. Despite guidelines-based approaches to its diagnosis and therapy, the mortality rates remain higher even in developed countries, reaching up to 30% in intensive care units. High mortality rates in sepsis are largely driven by clinical heterogeneity, highlighting the critical role of epigenetic modulation mechanisms in shaping diverse clinical phenotypes. The main epigenetic mechanisms that modulate the immune response and outcome in sepsis are: DNA methylation, microRNA synthesis, histone modulation, and RNA methylation. This narrative review examines the role of epigenetic mechanisms in sepsis heterogeneity, phenotyping, management, and outcomes, with particular emphasis on the potential contribution of artificial intelligence to the integration of molecular and clinical data for precision medicine. Consequently, the study of AI-integrated strategies for better tailoring of the diversity of epigenetic changes should be prioritized. Thus, machine learning algorithms, deep learning frameworks, and large language models offer helpful insights in redefining the role of AI in sepsis management from this epigenetic perspective. Despite the support of AI in integrating the epigenetic mechanisms into clinical practice, some disadvantages should be also considered like: black box configuration for deep learning frameworks, inequalities from the past data used for training the models, data privacy, ethical concerns, cohort size, number of parameters considered etc. In conclusion, AI tools represent important means in tailoring the personalized decision tree, especially considering the epigenetic influence on the disease course.