5 results on '"Clinton D. Kemp"'
Search Results
2. Extracorporeal membrane oxygenation for profound cardiogenic shock due to cocaine toxicity
- Author
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Christopher M. Sciortino, Steven P. Schulman, Jared D. Miller, Joshua C. Grimm, Mollie R. Myers, Clinton D. Kemp, and Keki R. Balsara
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medicine.medical_specialty ,Extracorporeal membrane oxygenation ,business.industry ,Cardiogenic shock ,medicine.medical_treatment ,Ischemia ,Vasodilation ,medicine.disease ,Article ,Angina ,Internal medicine ,Anesthesia ,Coronary vasospasm ,medicine ,Cardiology ,Myocardial infarction ,cardiovascular diseases ,Cocaine toxicity ,business ,Cardiology and Cardiovascular Medicine ,Perfusion ,Coronary artery vasospasm - Abstract
Cocaine toxicity can result in myocardial infarction from coronary vasospasm. The current treatment algorithm includes intravenous and/or intracoronary vasodilator administration with an expectantly quick resolution of symptoms and signs of ischemia. However, in situations in which myocardial injury persists, the optimal management is uncertain. We present a case in which extracorporeal membrane oxygenation effectively stabilized a patient with ongoing hemodynamic instability who experienced repeated episodes of myocardial injury and ventricular tachyarrhythmias due to cocaine toxicity. Learning objective: In many urban settings, cocaine-induced angina is not uncommon. The pathogenesis of its manifestation includes coronary artery vasospasm and decreased left ventricular function. Treatment typically involves systemic vasodilators, such as nitrates and calcium channel blockers. However, in patients with substantial hemodynamic instability, these agents might result in a worsening of systemic perfusion. Accordingly, extracorporeal membrane oxygenation should be considered in such cases to promote myocardial recovery.>
- Published
- 2014
3. The GYMSSA trial: a prospective randomized trial comparing gastrectomy, metastasectomy plus systemic therapy versus systemic therapy alone
- Author
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Itzhak Avital, Martha Quezado, Udai S. Kammula, Ann Berger, Barry R. Goldspiel, Steven A. Rosenberg, Melissa Walker, Clinton D. Kemp, Seth M. Steinberg, King F. Kwong, Mary Ann Toomey, Guiseppe Giaccone, Aradhana M. Venkatesan, David S. Schrump, Austin G. Duffy, and Sid P. Kerkar
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medicine.medical_specialty ,Organoplatinum Compounds ,medicine.medical_treatment ,Leucovorin ,Medicine (miscellaneous) ,law.invention ,Randomized controlled trial ,law ,Gastrectomy ,Stomach Neoplasms ,Study protocol ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Hepatectomy ,Humans ,Continuous hyperthermic peritoneal perfusion ,Pharmacology (medical) ,Pneumonectomy ,Survival rate ,FOLFOXIRI ,lcsh:R5-920 ,business.industry ,Five-year survival rate ,Hyperthermia, Induced ,Combined Modality Therapy ,Surgery ,Survival Rate ,Regimen ,Camptothecin ,Fluorouracil ,Metastasectomy ,Peritoneum ,business ,lcsh:Medicine (General) - Abstract
Background The standard of care for metastatic gastric cancer (MGC) is systemic chemotherapy which leads to a median survival of 6-15 months. Survival beyond 3 years is rare. For selected groups of patients with limited MGC, retrospective studies have shown improved overall survival following gastrectomy and metastasectomies including peritoneal stripping with continuous hyperthermic peritoneal perfusion (CHPP), liver resection, and pulmonary resection. Median survival after liver resection for MGC is up to 34 months, with a five year survival rate of 24.5%. Similarly, reported median survival after pulmonary resection of MGC is 21 months with long term survival of greater than 5 years a possibility. Several case reports and small studies have documented evidence of long-term survival in select individuals who undergo CHPP for MGC. Design The GYMSSA trial is a prospective randomized trial for patients with MGC. It is designed to compare two therapeutic approaches: gastrectomy with metastasectomy plus systemic chemotherapy (GYMS) versus systemic chemotherapy alone (SA). Systemic therapy will be composed of the FOLFOXIRI regimen. The aim of the study is to evaluate overall survival and potential selection criteria to determine those patients who may benefit from surgery plus systemic therapy. The study will be conducted by the Surgery Branch at the National Cancer Institute (NCI), National Institutes of Health (NIH) in Bethesda, Maryland. Surgeries and followup will be done at the NCI, and chemotherapy will be given by either the local oncologist or the medical oncology branch at NCI. Trial Registration ClinicalTrials.gov ID. NCT00941655
- Published
- 2009
4. ICP0, ICP4, or VP16 Expressed from Adenovirus Vectors Induces Reactivation of Latent Herpes Simplex Virus Type 1 in Primary Cultures of Latently Infected Trigeminal Ganglion Cells
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David J. Davido, William P. Halford, Priscilla A. Schaffer, Jennifer A. Isler, and Clinton D. Kemp
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viruses ,Ubiquitin-Protein Ligases ,Immunology ,Genetic Vectors ,Replication ,Herpesvirus 1, Human ,Biology ,medicine.disease_cause ,Microbiology ,Viral vector ,Adenoviridae ,Immediate-Early Proteins ,Viral Proteins ,Virology ,Virus latency ,Chlorocebus aethiops ,medicine ,Animals ,Vero Cells ,Herpes simplex virus protein vmw65 ,Expression vector ,Herpes Simplex Virus Protein Vmw65 ,biochemical phenomena, metabolism, and nutrition ,medicine.disease ,Molecular biology ,Virus Latency ,DNA-Binding Proteins ,Herpes simplex virus ,Trigeminal Ganglion ,Cell culture ,Doxorubicin ,Insect Science ,Vero cell ,Trans-Activators ,Virus Activation - Abstract
In a previous study, we demonstrated that infected-cell polypeptide 0 (ICP0) is necessary for the efficient reactivation of herpes simplex virus type 1 (HSV-1) in primary cultures of latently infected trigeminal ganglion (TG) cells (W. P. Halford and P. A. Schaffer, J. Virol. 75:3240–3249, 2001). The present study was undertaken to determine whether ICP0 is sufficient to trigger HSV-1 reactivation in latently infected TG cells. To test this hypothesis, replication-defective adenovirus vectors that express wild-type and mutant forms of ICP0 under the control of a tetracycline response element (TRE) promoter were constructed. Similar adenovirus vectors encoding wild-type ICP4, wild-type and mutant forms of the HSV-1 origin-binding protein (OBP), and wild-type and mutant forms of VP16 were also constructed. The TRE promoter was induced by coinfection of Vero cells with the test vector and an adenovirus vector that expresses the reverse tetracycline-regulated transactivator in the presence of doxycycline. Northern blot analysis demonstrated that transcription of the OBP gene in the adenovirus expression vector increased as a function of doxycycline concentration over a range of 0.1 to 10 μM. Likewise, Western blot analysis demonstrated that addition of 3 μM doxycycline to adenovirus vector-infected Vero cells resulted in a 100-fold increase in OBP expression. Wild-type forms of ICP0, ICP4, OBP, and VP16 expressed from adenovirus vectors were functional based on their ability to complement plaque formation in Vero cells by replication-defective HSV-1 strains with mutations in these genes. Adenovirus vectors that express wild-type forms of ICP0, ICP4, or VP16 induced reactivation of HSV-1 in 86% ± 5%, 86% ± 5%, and 97% ± 5% of TG cell cultures, respectively (means ± standard deviations). In contrast, vectors that express wild-type OBP or mutant forms of ICP0, OBP, or VP16 induced reactivation in 5% ± 5%, 8% ± 0%, 0% ± 0%, and 13% ± 6% of TG cell cultures, respectively. In control infections, an adenovirus vector expressed green fluorescent protein efficiently in TG neurons but did not induce HSV-1 reactivation. Therefore, expression of ICP0, ICP4, or VP16 is sufficient to induce HSV-1 reactivation in latently infected TG cell cultures. We conclude that this system provides a powerful tool for determining which cellular and viral proteins are sufficient to induce HSV-1 reactivation from neuronal latency.
- Published
- 2001
5. THE GooseMan: A simulator for transhiatal esophagectomy
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Kanika Trehan, Xun Zhou, Clinton D. Kemp, Yufei Tang, Stephen C. Yang, and Doru Petrisor
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Models, Anatomic ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Esophageal Neoplasms ,Swine ,medicine.medical_treatment ,Manikins ,medicine ,Animals ,Humans ,Esophagus ,Transhiatal esophagectomy ,business.industry ,Gold standard ,Mediastinum ,Esophageal cancer ,medicine.disease ,Tracheobronchial injury ,Diaphragm (structural system) ,Surgery ,Esophagectomy ,medicine.anatomical_structure ,business ,Cardiology and Cardiovascular Medicine - Abstract
Esophageal cancer is the fastest growing cancer in the United States and the seventh leading cause of cancerrelated death worldwide. The gold standard therapy is surgical resection commonly performed as a transhiatal esophagectomy (THE), which involves blindly dissecting the esophagus in the mediastinum through abdominal and cervical neck incisions. Compared with transthoracic esophagectomy, which requires creating a direct thoracic incision, THE has similar long-term survival but is less invasive and has fewer complications, a shorter recovery time, and decreased in-hospital mortality. Yet, morbidity and mortality from THE remain high compared with other thoracic procedures, largely a result of complications that arise during the blind mobilization process, such as injury to blood vessels, pleural entry, tracheobronchial injury, and hypotension and arrhythmia from compression of the heart. Although THE is difficult to perform, it is also difficult to teach because limited space and lack of visualization in the mediastinum minimize opportunities for careful supervision. In addition, learning opportunities are limited because many surgeons perform transthoracic esophagectomy or laparoscopic esophagectomy instead. Surgical simulation may provide a safe and accessible alternative for THE training; however, there are currently no simulators that can be adapted for this operation. Thus, we developed THE GooseMan, a simple bench model for THE simulation training made of synthetic materials along with porcine organs that costs
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