Publications by authors named "Craig Hooker"

Background: Here, we investigated the relationship between clinical parameters, including the site of surgical anastomosis and radiation dose to the anastomotic region, and anastomotic complications in esophageal cancer patients treated with trimodality therapy.

Methods: Between 2007 and 2016, esophageal cancer patients treated with trimodality therapy at a tertiary academic cancer center were identified. Patient, treatment, and outcome parameters were collected.

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Background: National costs of lung cancer care exceed $12 billion. We investigate the resource-savings benefit of a single-day thoracic oncology multidisciplinary clinic (MDC) in the diagnostic period prior to non-small-cell lung cancer (NSCLC) treatment.

Materials And Methods: From July 2007 to January 2015, patients with NSCLC treated with multimodality therapy at a tertiary hospital-based cancer center in Maryland were identified.

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Objectives: The tendency for patients with primary focal hyperhidrosis (PFH), characterized by excessive sweating, to experience psycho-social deficits is well documented. In addition, although endoscopic thoracic sympathectomy (ETS) effectively corrects PFH, its role in the psycho-social management of these patients remains unclear. Here, we examined changes in psychiatric symptomatology and psychotropic medication usage in PFH patients following ETS.

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Background: Complex esophageal reconstruction (CER) is defined as restoring esophageal continuity in a previously operated field, using a nongastric conduit, or after esophageal diversion. This study compares the outcomes of CER with non-CER (NCER), which uses an undisturbed stomach for reconstruction.

Methods: This single-institution retrospective cohort study compares 75 CERs with 75 NCERs from 1995 to 2014 that were matched for cancer versus benign disease.

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Background: Robot-assisted surgical techniques have been introduced in recent years as an alternative minimally invasive approach for lung surgery. While the advantage of video-assisted thoracoscopic surgery (VATS) over thoracotomy for anatomical lung resection has been extensively reported, the results of robotic video-assisted thoracoscopic surgery (RVATS) compared to VATS are still under investigation.

Methods: We performed a retrospective review of lung cancer patients, undergoing minimally invasive segmentectomy or lobectomy between December 2007 and May 2014.

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Neurofilament heavy polypeptide (NEFH) has recently been identified as a candidate DNA hypermethylated gene within the functional breast cancer hypermethylome. NEFH exists in a complex with neurofilament medium polypeptide (NEFM) and neurofilament light polypeptide (NEFL) to form neurofilaments, which are structural components of the cytoskeleton in mature neurons. Recent studies reported the deregulation of these proteins in several malignancies, suggesting that neurofilaments may have a role in other cell types as well.

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Objective: Readmission after surgery is an unwanted adverse event that is costly to the healthcare system. We sought to evaluate factors associated with increased risk of readmission and to characterize the nature of these readmissions in patients who have esophageal cancer.

Methods: A retrospective cohort study was performed in 306 patients with esophageal carcinoma who underwent neoadjuvant chemoradiation followed by esophagectomy at Johns Hopkins Hospital between 1993 and 2011.

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Background: Obesity has increased dramatically in the American population during the past 2 decades. Approximately 35% of adults are obese. Although obesity represents a major health issue, the association between obesity and operative outcomes has been a subject of controversy.

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Background: Epidemiological evidence suggests that HIV-infected individuals are at increased risk of lung cancer, but no data exist because large computed tomography (CT) screening trials routinely exclude HIV-infected participants.

Methods: From 2006 to 2013, we conducted the world's first lung cancer screening trial of 224 HIV-infected current/former smokers to assess the CT detection rates of lung cancer. We also used 130 HIV-infected patients with known lung cancer to determine radiographic markers of lung cancer risk using multivariate analysis.

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Background: Data to guide the management of advanced pulmonary carcinoid (APC) come from retrospective reports and subgroup analyses of trials that included mainly extrapulmonary carcinoid tumors. We report the largest series to date of 49 patients with locally advanced or metastatic pulmonary carcinoid.

Methods: The Johns Hopkins Pathology Database was reviewed for APC patients treated between January 1992 and December 2012.

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Purpose: Non-small cell lung cancer (NSCLC) is the leading cause of cancer mortality in the world. Novel diagnostic biomarkers may augment both existing NSCLC screening methods as well as molecular diagnostic tests of surgical specimens to more accurately stratify and stage candidates for adjuvant chemotherapy. Hypermethylation of CpG islands is a common and important alteration in the transition from normal tissue to cancer.

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Background: "Rush to surgery" among patients with worse symptoms, delays related to morbidity, and inclusion of patients with advanced disease in study populations have produced a mixed picture of importance of time to treatment to survival of non-small cell lung cancer. Our objective was to assess the contribution of diagnosis to first surgery interval to survival among patients diagnosed in the community with early-stage non-small cell lung cancer.

Methods: Patients with early-stage lung cancer (N = 174) at the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins who were diagnosed and treated from 2003 to 2009 and followed through 2011 made up a prospective study of overall survival.

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KRAS mutations have been found in duodenal adenocarcinomas and may have prognostic significance. The purpose of this study was to classify clinicopathological characteristics, microsatellite instability and KRAS mutations and identify possible prognostic role of KRAS mutations in duodenal adenocarcinomas. Demographics, tumor characteristics and survival were recorded for 78 patients with duodenal adenocarcinomas (Stages I-III).

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Purpose: Little information is available on genetic and epigenetic changes in duodenal adenocarcinomas. The purpose was to identify possible subsets of duodenal adenocarcinomas based on microsatellite instability (MSI), DNA methylation, mutations in the KRAS and BRAF genes, clinicopathologic features, and prognosis.

Experimental Design: Demographics, tumor characteristics, and survival were available for 99 duodenal adenocarcinoma patients.

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Breast cancer (BC) is a disease with diverse tumor heterogeneity, which challenges conventional approaches to develop biomarkers for early detection and prognosis. To identify effective biomarkers, we performed a genome-wide screen for functional methylation changes in BC, i.e.

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Unlabelled: Epigenetic alterations are strongly associated with the development of cancer. We conducted a phase I/II trial of combined epigenetic therapy with azacitidine and entinostat, inhibitors of DNA methylation and histone deacetylation, respectively, in extensively pretreated patients with recurrent metastatic non-small cell lung cancer. This therapy is well tolerated, and objective responses were observed, including a complete response and a partial response in a patient who remains alive and without disease progression approximately 2 years after completing protocol therapy.

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Background: Epithelioid sarcomas (ES) are extremely rare soft tissue sarcomas. As such, their clinical behavior and response to treatment are poorly described in the literature.

Methods: We queried the centralized cancer registry and pathology archives at the Johns Hopkins Medical Institution and identified 22 patients with a diagnosis of ES.

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Background: It remains unclear if patients with clinical stage T2 N0 (cT2 N0) esophageal cancer should be offered induction therapy vs surgical intervention alone.

Methods: This was a retrospective cohort study of cT2 N0 patients undergoing induction therapy, followed by surgical resection, or resection alone, at the Johns Hopkins Hospital from 1989 to 2009. Kaplan-Meier analysis was used to compare all-cause mortality in cT2 N0 patients who had resection alone vs those who had induction chemoradiation therapy, followed by resection.

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Background: The purpose of this study was to assess the effect of human immunodeficiency virus (HIV) infection on postoperative survival among non-small cell lung cancer (NSCLC) patients.

Methods: A retrospective cohort study compared 22 HIV-infected lung cancer patients to 2,430 lung cancer patients with HIV-unspecified status who underwent resection at Johns Hopkins Hospital from 1985 to 2009. Subcohort comparative analyses were performed using individual matching methods.

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Background: The flank is commonly used for primary xenografts in mice, but it is rare for these tumors to metastasize. Tail vein injection creates a pattern of metastases, but is artificial. We hypothesized that the liver is a convenient alternative xenograft site and that metastases would gradually proceed spontaneously.

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Purpose: The importance of genetic and epigenetic alterations maybe in their aggregate role in altering core pathways in tumorigenesis.

Experimental Design: Merging genome-wide genomic and epigenomic alterations, we identify key genes and pathways altered in colorectal cancers (CRC). DNA methylation analysis was tested for predicting survival in CRC patients using Cox proportional hazard model.

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Nuclear localization of non-phosphorylated, active beta-catenin is a measure of Wnt pathway activation and is associated with adverse outcome in patients with acute myeloid leukemia (AML). While genetic alterations of the Wnt pathway are infrequent in AML, inhibitors of this pathway are silenced by promoter methylation in other malignanices. Leukemia cell lines were examined for Wnt pathway inhibitor methylation and total beta-catenin levels, and had frequent methylation of Wnt inhibitors and upregulated beta-catenin by Western blot and immunofluorescence.

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Background: Methylation of tumor suppression genes (TSGs) is common in myeloid malignancies. However, application of this as a molecular marker for risk stratification in patients with AML is limited.

Design And Methods: To elucidate the impact of patterns of TSG methylation on outcome in cytogenetically normal patients, 106 samples from patients with having normal cytogenetic AML were evaluated for methylation of 12 genes by MSP.

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Background: Survival outcomes of never smokers with non-small cell lung cancer (NSCLC) who undergo surgery are poorly characterized. This investigation compared surgical outcomes of never and current smokers with NSCLC.

Methods: This investigation was a single-institution retrospective study of never and current smokers with NSCLC from 1975 to 2004.

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Objective: We hypothesized that most relapses in patients with esophageal cancer having neoadjuvant chemoradiation therapy would occur outside of the surgical and radiation fields.

Methods: Recurrence patterns, time to recurrence, and median survival were examined in 267 patients who had esophagectomy after neoadjuvant chemoradiation therapy at Johns Hopkins over 19 years.

Results: Of 267 patients, 82 (30.

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