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  1. Article ; Online: Extreme-aged patients (≥ 85 years) experience similar outcomes as younger geriatric patients following chronic subdural hematoma evacuation: a matched cohort study.

    Nisson, Peyton L / Francis, John J / Michel, Michelot / Goel, Keshav / Patil, Chirag G

    GeroScience

    2024  

    Abstract: Subdural hematoma (SDH) evacuation represents one of the most frequently performed neurosurgical procedures. Several reports cite a rise in both the age and number of patient's requiring treatment, due in part to an aging population and expanded ... ...

    Abstract Subdural hematoma (SDH) evacuation represents one of the most frequently performed neurosurgical procedures. Several reports cite a rise in both the age and number of patient's requiring treatment, due in part to an aging population and expanded anticoagulation use. However, limited data and conflicting conclusions exist on extreme-aged geriatric patients (≥ 85 years of age) after undergoing surgery. Patients undergoing SDH evacuation at a tertiary academic medical center between November 2013-December 2021 were retrospectively identified. The study group consisted of patients ≥ 85 years (Group 1) diagnosed with a chronic SDH surgically evacuated. A control group was created matching patients by 70-84 years of age, gender, and anticoagulation use (Group 2). Multiple metrics were evaluated between the two including length-of hospital-stay, tracheostomy/PEG placement, reoperation rate, complications, discharge location, neurological outcome at the time of discharge, and survival. A total of 130 patients were included; 65 in Group 1 and 65 in Group 2. Patient demographics, medical comorbidities, SDH characteristics, international normalized ratio, partial thromboplastin time, and use of blood thinning agents were similar between the two groups. Kaplan Meier survival analysis at one-year was 80% for Group 1 and 76% for Group 2. No significant difference was identified using the log-rank test for equality of survivor functions (p = 0.26). All measured outcomes including GCS at time of discharge, length of stay, rate of reoperations, and neurological outcome were statistically similar between the two groups. Backwards stepwise conditional logistic regression revealed no significant association between poor outcomes at the time of discharge and age. Alternatively, anticoagulation use was found to be associated with poor outcomes (OR 3.55, 95% CI 1.08-11.60; p = 0.036). Several outcome metrics and statistical analyses were used to compare patients ≥ 85 years of age to younger geriatric patients (70-84 years) in a matched cohort study. Adjusting for age group, gender, and anticoagulation use, no significant difference was found between the two groups including neurological outcome at discharge, reoperation rate, and survival.
    Language English
    Publishing date 2024-01-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2886586-8
    ISSN 2509-2723 ; 2509-2715
    ISSN (online) 2509-2723
    ISSN 2509-2715
    DOI 10.1007/s11357-024-01081-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Early versus delayed postoperative radiotherapy for treatment of low-grade gliomas.

    Dhawan, Sanjay / Patil, Chirag G / Chen, Clark / Venteicher, Andrew S

    The Cochrane database of systematic reviews

    2020  Volume 1, Page(s) CD009229

    Abstract: Background: This is an update of the review originally published in 2011 and first updated in 2015. In most people with low-grade gliomas (LGG), the primary treatment regimen remains a combination of surgery followed by postoperative radiotherapy. ... ...

    Abstract Background: This is an update of the review originally published in 2011 and first updated in 2015. In most people with low-grade gliomas (LGG), the primary treatment regimen remains a combination of surgery followed by postoperative radiotherapy. However, the optimal timing of radiotherapy is controversial. It is unclear whether to use radiotherapy in the early postoperative period, or whether radiotherapy should be delayed until tumour progression occurs.
    Objectives: To assess the effects of early postoperative radiotherapy versus radiotherapy delayed until tumour progression for low-grade intracranial gliomas in people who had initial biopsy or surgical resection.
    Search methods: Original searches were run up to September 2014. An updated literature search from September 2014 through November 2019 was performed on the following electronic databases: the Cochrane Central Register of Controlled Trials (CENTRAL; 2019, Issue 11), MEDLINE via Ovid (September 2014 to November week 2 2019), and Embase via Ovid (September 2014 to 2019 week 46) to identify trials for inclusion in this Cochrane review update.
    Selection criteria: We included randomised controlled trials (RCTs) that compared early versus delayed radiotherapy following biopsy or surgical resection for the treatment of people with newly diagnosed intracranial LGG (astrocytoma, oligodendroglioma, mixed oligoastrocytoma, astroblastoma, xanthoastrocytoma, or ganglioglioma). Radiotherapy may include conformal external beam radiotherapy (EBRT) with linear accelerator or cobalt-60 sources, intensity-modulated radiotherapy (IMRT), or stereotactic radiosurgery (SRS).
    Data collection and analysis: Three review authors independently assessed the trials for inclusion and risk of bias, and extracted study data. We resolved any differences between review authors by discussion. Adverse effects were also extracted from the study report. We performed meta-analyses using a random-effects model with inverse variance weighting.
    Main results: We included one large, multi-institutional, prospective RCT, involving 311 participants; the risk of bias in this study was unclear. This study found that early postoperative radiotherapy was associated with an increase in time to progression compared to observation (and delayed radiotherapy upon disease progression) for people with LGG but did not significantly improve overall survival (OS). The median progression-free survival (PFS) was 5.3 years in the early radiotherapy group and 3.4 years in the delayed radiotherapy group (hazard ratio (HR) 0.59, 95% confidence interval (CI) 0.45 to 0.77; P < 0.0001; 311 participants; 1 trial; low-quality evidence). The median OS in the early radiotherapy group was 7.4 years, while the delayed radiotherapy group experienced a median overall survival of 7.2 years (HR 0.97, 95% CI 0.71 to 1.33; P = 0.872; 311 participants; 1 trial; low-quality evidence). The total dose of radiotherapy given was 54 Gy; five fractions of 1.8 Gy per week were given for six weeks. Adverse effects following radiotherapy consisted of skin reactions, otitis media, mild headache, nausea, and vomiting. Rescue therapy was provided to 65% of the participants randomised to delayed radiotherapy. People in both cohorts who were free from tumour progression showed no differences in cognitive deficit, focal deficit, performance status, and headache after one year. However, participants randomised to the early radiotherapy group experienced significantly fewer seizures than participants in the delayed postoperative radiotherapy group at one year (25% versus 41%, P = 0.0329, respectively).
    Authors' conclusions: Given the high risk of bias in the included study, the results of this analysis must be interpreted with caution. Early radiation therapy was associated with the following adverse effects: skin reactions, otitis media, mild headache, nausea, and vomiting. People with LGG who underwent early radiotherapy showed an increase in time to progression compared with people who were observed and had radiotherapy at the time of progression. There was no significant difference in overall survival between people who had early versus delayed radiotherapy; however, this finding may be due to the effectiveness of rescue therapy with radiation in the control arm. People who underwent early radiation had better seizure control at one year than people who underwent delayed radiation. There were no cases of radiation-induced malignant transformation of LGG. However, it remained unclear whether there were differences in memory, executive function, cognitive function, or quality of life between the two groups since these measures were not evaluated.
    MeSH term(s) Brain Neoplasms/mortality ; Brain Neoplasms/radiotherapy ; Brain Neoplasms/surgery ; Disease-Free Survival ; Glioma/radiotherapy ; Glioma/surgery ; Humans ; Postoperative Care ; Progression-Free Survival ; Radiosurgery ; Radiotherapy/methods ; Randomized Controlled Trials as Topic ; Time Factors ; Watchful Waiting
    Language English
    Publishing date 2020-01-20
    Publishing country England
    Document type Journal Article ; Meta-Analysis ; Research Support, Non-U.S. Gov't ; Systematic Review
    ISSN 1469-493X
    ISSN (online) 1469-493X
    DOI 10.1002/14651858.CD009229.pub3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Letter to the Editor: Venous thromboembolism.

    Mukherjee, Debraj / Patil, Chirag G

    Journal of neurosurgery

    2012  Volume 117, Issue 3, Page(s) 638–639

    MeSH term(s) Female ; Humans ; Male ; Neurosurgical Procedures/adverse effects ; Pulmonary Embolism/etiology ; Venous Thromboembolism/etiology ; Venous Thrombosis/etiology
    Language English
    Publishing date 2012-09
    Publishing country United States
    Document type Comment ; Letter
    ZDB-ID 3089-2
    ISSN 1933-0693 ; 0022-3085
    ISSN (online) 1933-0693
    ISSN 0022-3085
    DOI 10.3171/2011.2.JNS1151
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Intracranial-pressure monitoring in traumatic brain injury.

    Mukherjee, Debraj / Sarmiento, J Manuel / Patil, Chirag G

    The New England journal of medicine

    2013  Volume 368, Issue 18, Page(s) 1748–1749

    MeSH term(s) Brain/diagnostic imaging ; Brain Injuries/physiopathology ; Female ; Humans ; Intracranial Hypertension/diagnosis ; Intracranial Pressure ; Male ; Monitoring, Physiologic ; Neurologic Examination ; Radiography
    Language English
    Publishing date 2013-05-02
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 207154-x
    ISSN 1533-4406 ; 0028-4793
    ISSN (online) 1533-4406
    ISSN 0028-4793
    DOI 10.1056/NEJMc1301076#SA2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A Simple Three-dimensional Hydrogel Platform Enables

    Hribar, Kolin C / Wheeler, Christopher J / Bazarov, Alexey / Varshneya, Kunal / Yamada, Ryosuke / Buckley, Padraig / Patil, Chirag G

    Molecular cancer therapeutics

    2019  Volume 18, Issue 3, Page(s) 718–725

    Abstract: A cell culture platform that ... ...

    Abstract A cell culture platform that enables
    MeSH term(s) Aged ; Animals ; Carcinoma, Renal Cell/drug therapy ; Carcinoma, Renal Cell/pathology ; Cell Culture Techniques ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Clinical Trials as Topic ; Disease Models, Animal ; Female ; Glioblastoma/drug therapy ; Glioblastoma/pathology ; Humans ; Hydrogels/pharmacology ; Male ; Mice ; Progression-Free Survival ; Spheroids, Cellular/drug effects ; Temozolomide/pharmacology ; Xenograft Model Antitumor Assays
    Chemical Substances Hydrogels ; Temozolomide (YF1K15M17Y)
    Language English
    Publishing date 2019-02-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2063563-1
    ISSN 1538-8514 ; 1535-7163
    ISSN (online) 1538-8514
    ISSN 1535-7163
    DOI 10.1158/1535-7163.MCT-18-0359
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Helicopter vs ground transportation for patients with trauma.

    Mukherjee, Debraj / Nuno, Miriam / Patil, Chirag G

    JAMA

    2012  Volume 308, Issue 6, Page(s) 564–5; author reply 565

    MeSH term(s) Air Ambulances/statistics & numerical data ; Ambulances/statistics & numerical data ; Emergency Medical Services/methods ; Female ; Humans ; Male ; Wounds and Injuries/mortality
    Language English
    Publishing date 2012-08-08
    Publishing country United States
    Document type Comment ; Letter
    ZDB-ID 2958-0
    ISSN 1538-3598 ; 0254-9077 ; 0002-9955 ; 0098-7484
    ISSN (online) 1538-3598
    ISSN 0254-9077 ; 0002-9955 ; 0098-7484
    DOI 10.1001/jama.2012.7774
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Early versus delayed postoperative radiotherapy for treatment of low-grade gliomas.

    Sarmiento, J Manuel / Venteicher, Andrew S / Patil, Chirag G

    The Cochrane database of systematic reviews

    2015  , Issue 6, Page(s) CD009229

    Abstract: Background: In most people with low-grade gliomas (LGG), the primary treatment regimen remains a combination of surgery followed by postoperative radiotherapy. However, the optimal timing of radiotherapy is controversial. It is unclear whether to use ... ...

    Abstract Background: In most people with low-grade gliomas (LGG), the primary treatment regimen remains a combination of surgery followed by postoperative radiotherapy. However, the optimal timing of radiotherapy is controversial. It is unclear whether to use radiotherapy in the early postoperative period, or whether radiotherapy should be delayed until tumour progression occurs.
    Objectives: To assess the effects of early postoperative radiotherapy versus radiotherapy delayed until tumour progression for low-grade intracranial gliomas in people who had initial biopsy or surgical resection.
    Search methods: We searched up to September 2014 the following electronic databases: the Cochrane Register of Controlled Trials (CENTRAL, Issue 8, 2014), MEDLINE (1948 to Aug week 3, 2014), and EMBASE (1980 to Aug week 3, 2014) to identify trials for inclusion in this Cochrane review.
    Selection criteria: We included randomised controlled trials (RCTs) that compared early versus delayed radiotherapy following biopsy or surgical resection for the treatment of people with newly diagnosed intracranial LGG (astrocytoma, oligodendroglioma, mixed oligoastrocytoma, astroblastoma, xanthoastrocytoma, or ganglioglioma). Radiotherapy may include conformal external beam radiotherapy (EBRT) with linear accelerator or cobalt-60 sources, intensity-modulated radiotherapy (IMRT), or stereotactic radiosurgery (SRS).
    Data collection and analysis: Three review authors independently assessed the trials for inclusion and risk of bias, and extracted study data. We resolved any differences between review authors by discussion. Adverse effects were also extracted from the study report. We performed meta-analyses using a random-effects model with inverse variance weighting.
    Main results: We included one large, multi-institutional, prospective RCT, involving 311 participants; the risk of bias in this study was unclear. This study found that early postoperative radiotherapy is associated with an increase in time to progression compared to observation (and delayed radiotherapy upon disease progression) for people with LGG but does not significantly improve overall survival (OS). The median progression-free survival (PFS) was 5.3 years in the early radiotherapy group and 3.4 years in the delayed radiotherapy group (hazard ratio (HR) 0.59, 95% confidence interval (CI) 0.45 to 0.77; P value < 0.0001; 311 participants; 1 trail; low quality evidence). The median OS in the early radiotherapy group was 7.4 years, while the delayed radiotherapy group experienced a median overall survival of 7.2 years (HR 0.97, 95% CI 0.71 to 1.33; P value = 0.872; 311 participants; 1 trail; low quality evidence). The total dose of radiotherapy given was 54 Gy; five fractions of 1.8 Gy per week were given for six weeks. Adverse effects following radiotherapy consisted of skin reactions, otitis media, mild headache, nausea, and vomiting. Rescue therapy was provided to 65% of the participants randomised to delayed radiotherapy. People in both cohorts who were free from tumour progression showed no differences in cognitive deficit, focal deficit, performance status, and headache after one year. However, participants randomised to the early radiotherapy group experienced significantly fewer seizures than participants in the delayed postoperative radiotherapy group at one year (25% versus 41%, P value = 0.0329, respectively).
    Authors' conclusions: Given the high risk of bias in the included study, the results of this analysis must be interpreted with caution. Early radiation therapy was associated with the following adverse effects: skin reactions, otitis media, mild headache, nausea, and vomiting. People with LGG who undergo early radiotherapy showed an increase in time to progression compared with people who were observed and had radiotherapy at the time of progression. There was no significant difference in overall survival between people who had early versus delayed radiotherapy; however, this finding may be due to the effectiveness of rescue therapy with radiation in the control arm. People who underwent early radiation had better seizure control at one year than people who underwent delayed radiation. There were no cases of radiation-induced malignant transformation of LGG. However, it remains unclear whether there are differences in memory, executive function, cognitive function, or quality of life between the two groups since these measures were not evaluated.
    MeSH term(s) Biopsy ; Brain Neoplasms/mortality ; Brain Neoplasms/pathology ; Brain Neoplasms/radiotherapy ; Brain Neoplasms/surgery ; Disease Progression ; Disease-Free Survival ; Glioma/mortality ; Glioma/pathology ; Glioma/radiotherapy ; Glioma/surgery ; Humans ; Postoperative Care ; Radiotherapy/adverse effects ; Seizures/therapy ; Time Factors ; Watchful Waiting
    Language English
    Publishing date 2015-06-29
    Publishing country England
    Document type Journal Article ; Meta-Analysis ; Research Support, Non-U.S. Gov't ; Review ; Systematic Review
    ISSN 1469-493X
    ISSN (online) 1469-493X
    DOI 10.1002/14651858.CD009229.pub2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Epidemiology and the global burden of stroke.

    Mukherjee, Debraj / Patil, Chirag G

    World neurosurgery

    2011  Volume 76, Issue 6 Suppl, Page(s) S85–90

    Abstract: Objective: Stroke remains one of the most devastating of all neurological diseases, often causing death or gross physical impairment or disability. As numerous countries throughout the world undergo the epidemiological transition of diseases, trends in ... ...

    Abstract Objective: Stroke remains one of the most devastating of all neurological diseases, often causing death or gross physical impairment or disability. As numerous countries throughout the world undergo the epidemiological transition of diseases, trends in the prevalence of stroke have dramatically changed.
    Methods: All major international epidemiological articles published during the past 20 years addressing the global burden of stroke were reviewed. A focus was placed upon better defining current and future trends in surveillance, incidence, burden of disease, mortality, and costs associated with stroke internationally.
    Results: Despite the fact that various surveillance systems are used to identify stroke and its sequela around the world, it is clear that stroke remains one of the top causes of mortality and disability-adjusted life-years (DALYs) lost globally. Concerning trends include the increase of stroke mortality and lost DALYs in low- and middle-income countries. The global economic impact of stroke may be dire if effective preventive measures are not implemented to help decrease the burden of this disease.
    Conclusion: The global burden of stroke is high, inclusive of increasing incidence, mortality, DALYs, and economic impact, particularly in low- and middle-income countries. The implementation of better surveillance systems and prevention programs are needed to help track current trends as well as to curb the projected exponential increase in stroke worldwide.
    MeSH term(s) Cost of Illness ; Developing Countries ; Disabled Persons/statistics & numerical data ; Epidemiologic Methods ; Global Health ; Humans ; Risk Factors ; Stroke/economics ; Stroke/epidemiology ; Stroke/mortality ; Stroke/therapy
    Language English
    Publishing date 2011-12
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2534351-8
    ISSN 1878-8769 ; 1878-8750
    ISSN (online) 1878-8769
    ISSN 1878-8750
    DOI 10.1016/j.wneu.2011.07.023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Amantadine for severe traumatic brain injury.

    Mukherjee, Debraj / Patil, Chirag G / Palestrant, David

    The New England journal of medicine

    2012  Volume 366, Issue 25, Page(s) 2427; author reply 2427–8

    MeSH term(s) Amantadine/therapeutic use ; Brain Injuries/drug therapy ; Coma, Post-Head Injury/drug therapy ; Dopamine Agents/therapeutic use ; Female ; Humans ; Male
    Chemical Substances Dopamine Agents ; Amantadine (BF4C9Z1J53)
    Language English
    Publishing date 2012-06-21
    Publishing country United States
    Document type Comment ; Letter
    ZDB-ID 207154-x
    ISSN 1533-4406 ; 0028-4793
    ISSN (online) 1533-4406
    ISSN 0028-4793
    DOI 10.1056/NEJMc1204669#SA1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: The Efficacy of Ketogenic Diet and Associated Hypoglycemia as an Adjuvant Therapy for High-Grade Gliomas: A Review of the Literature.

    Varshneya, Kunal / Carico, Christine / Ortega, Alicia / Patil, Chirag G

    Cureus

    2015  Volume 7, Issue 2, Page(s) e251

    Abstract: Background: A high-fat, low-carbohydrate diet, often referred to as a ketogenic diet (KD), has been suggested to reduce frequency and severity of chronic pediatric and adult seizures. A hypoglycemic state, perpetuated by administration of a KD, has been ...

    Abstract Background: A high-fat, low-carbohydrate diet, often referred to as a ketogenic diet (KD), has been suggested to reduce frequency and severity of chronic pediatric and adult seizures. A hypoglycemic state, perpetuated by administration of a KD, has been hypothesized as a potential aid to the current standard treatments of high-grade gliomas.
    Methods: To understand the effectiveness of the ketogenic diet as a therapy for malignant gliomas, studies analyzing components of a KD were reviewed. Both preclinical and clinical studies were included. The keywords "ketogenic diet, GBM, malignant glioma, hyperglycemia, hypoglycemia" were utilized to search for both abstracts and full articles in English. Overall, 39 articles were found and included in this review.
    Results: Studies in animal models showed that a KD is able to control tumor growth and increase overall survival. Other pre-clinical studies have suggested that a KD sustains an environment in which tumors respond better to standard treatments, such as chemoradiation. In human cohorts, the KD was well tolerated. Quality of life was improved, compared to a standard, non-calorie or carbohydrate restricted diet. Hyperglycemia was independently associated with diminished survival.
    Conclusion: Recent clinical findings have demonstrated that induced hypoglycemia and ketogenic diet are tolerable and can potentially be an adjuvant to standard treatments, such as surgery and chemoradiation. Other findings have advocated for KD as a malignant cell growth inhibitor, and indicate that further studies analyzing larger cohorts of GBM patients treated with a KD are needed to determine the breadth of impact a KD can have on GBM treatment.
    Language English
    Publishing date 2015-02-27
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.251
    Database MEDical Literature Analysis and Retrieval System OnLINE

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