Abstract:
OBJECTIVES:The OX-40 receptor (OX-40R/CD134) is expressed primarily on activated CD4(+) ("helper") T cells. We have previously reported the presence of OX-40(+) T cells in head and neck cancer and melanoma, where they appear to be restricted to tumor compartments (primary tumor infiltrating lymphocytes [TILs] and draining lymph node cells) and therefore may represent the tumor antigen-specific CD4(+) T cells. METHODS:In order to determine the degree of OX-40R expression, and any relationship with the presence of tumor cells (lobular and/or infiltrating ductal carcinoma), 45 archived paraffin-embedded breast primary tumors and their associated draining (axillary) lymph nodes were retrospectively analyzed using standard immunohistochemical techniques. RESULTS:Seven of 45 primary tumors (16%) and 7 of 29 with lympocytic infiltrates (24%) were noted to have elevated levels of OX-40R(+) lymphocytes within the tumor specimens, including 2 of 4 specimens thought to have only "pure" ductal carcinoma in situ (DCIS). No OX-40R(+) lymphocytes were noted in normal breast tissue. Twenty-one (43%) patients had axillary metastases at the time of resection. High levels of OX-40R expression was seen in 9 (45%) of these 21 axillary node specimens, whereas no such staining was seen in the node-negative specimens (P <0.001). Furthermore, in a patient thought to be without axillary disease, several subcapsular single-cell metastases were retrospectively discovered near a lone cluster of OX-40R(+) lymphocytes. In general, visual inspection showed OX-40R(+) T cells to be in close proximity to tumor and often in direct contact with metastatic cells. CONCLUSIONS:The OX-40R is upregulated on lymphocytes within tumor draining lymph nodes, and these lymphocytes are specifically localized around tumor deposits. These data imply that OX-40R immunostaining may be useful for both determination of occult involvement of lymph nodes by tumor and for identification of potential candidates for future OX-40 based immunotherapy.
journal_name
Am J Surgjournal_title
American journal of surgeryauthors
Ramstad T,Lawnicki L,Vetto J,Weinberg Adoi
10.1016/s0002-9610(00)00361-5subject
Has Abstractpub_date
2000-05-01 00:00:00pages
400-6issue
5eissn
0002-9610issn
1879-1883pii
S0002-9610(00)00361-5journal_volume
179pub_type
杂志文章abstract:BACKGROUND:This pilot project involved the development of a structured, experiential, educational module using a bench model technical skills simulation and standardized patients. It integrated teaching and assessment of clinical, technical, and interpersonal skills, as well as professionalism within the context of an ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2005.07.003
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:Mental skills training refers to the implementation of cognitive performance-enhancing strategies to promote optimal performance. We aimed to develop a surgery-specific mental skills curriculum (MSC) and obtain initial evidence of efficacy. METHODS:The developed MSC consisted of 8 proven performance-enhanci...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2016.06.027
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:The field of telemedicine has grown tremendously over the last decade. We present a systematic review of publications on telemedicine as it pertains to surgery, addressing six facets: 1) telerobotics, 2) telementoring, 3) teleconsulting, 4) telemedicine in post-operative follow-up, 5) tele-education, and 6) ...
journal_title:American journal of surgery
pub_type: 杂志文章,评审
doi:10.1016/j.amjsurg.2019.07.018
更新日期:2019-10-01 00:00:00
abstract:BACKGROUND:Short bowel syndrome, secondary to a variety of causes, can be lethal in infancy and childhood. Isoperistaltic bowel lengthening, performed by longitudinal division of dilated small bowel with end-to-end anastomosis, has shown early promise but long-term outcome is unknown. METHODS:Sixteen infants and child...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(99)00218-4
更新日期:1999-12-01 00:00:00
abstract::An adaptable on-line computer system for entry, retrieval, and analysis of medical discharge summaries has been developed and applied in the Trauma Service of a busy city hospital. Each summary occupied 5 to 10 minutes of the physician's time and compared favorably in cost to the standard dictated summary. While the a...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(76)90049-0
更新日期:1976-08-01 00:00:00
abstract:BACKGROUND:Distal pancreatectomy (DP) continues to carry a significant risk of morbidity resulting in hospital readmissions and increased costs. Prognostic factors predicting 30-day readmission after DP were evaluated. METHODS:Data were collected from 946 patients undergoing DP at the University of Verona Hospital Tru...
journal_title:American journal of surgery
pub_type: 杂志文章,多中心研究
doi:10.1016/j.amjsurg.2017.12.007
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Atrial fibrillation and atrial flutter (AF) frequently complicate coronary artery bypass surgery (CABG) and increase hospital stay as well as morbidity. Studies of drug prophylaxis to prevent AF with beta-adrenergic blocking agents administered in fixed doses have had conflicting results. METHODS:One hundre...
journal_title:American journal of surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/S0002-9610(97)00077-9
更新日期:1997-05-01 00:00:00
abstract::Between 1982 and 1985, 83 patients with hypopharyngeal or extensive laryngeal cancers underwent pharyngoesophagectomy (48 patients), circumferential pharyngectomy (8 patients), and partial pharyngectomy (27 patients), depending on the site and extent of tumor involvement. The resultant hypopharyngeal defects were reco...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(89)90007-x
更新日期:1987-10-01 00:00:00
abstract:BACKGROUND:Laparoscopic transabdominal preperitoneal (TAPP) herniorrhaphy provides an opportunity to definitively evaluate both inguinal areas without the need for additional dissection. We aimed to establish the rates and contributing patient factors to errors in the preoperative assessment. METHODS:A retrospective r...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2006.10.015
更新日期:2007-04-01 00:00:00
abstract::Although common in Japan, early gastric cancer is rarely seen in Western countries and generally accounts for only 7 to 10 percent of all gastric malignancies. Eleven patients with early gastric cancer seen over a 10 year period have been reviewed for clinical and pathologic features, method of diagnosis, treatment, a...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(87)90268-6
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND:Sentinel lymph node biopsy (SLNB) for the evaluation of women with invasive breast cancer is rapidly gaining acceptance. The purpose of this study was to assess how surgeons in the Department of Defense (DOD) are incorporating SLNB into practice. METHODS:Surgeons at all DOD hospitals were telephonically sur...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(02)00920-0
更新日期:2002-08-01 00:00:00
abstract::Trovafloxacin, a new fluoronaphthyridone derivative related to fluoroquinolone antimicrobial drugs, has demonstrated the following characteristics: significant gram-positive and gram-negative activity; significant activity against anaerobes and atypical respiratory pathogens; approximately 11-hour elimination half-lif...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(98)00213-x
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND:Laparoscopic parastomal hernia repair can be technically challenging. We herein present a simplified technique of laparoscopic parastomal hernia repair. METHODS:This technique entails fixation of the rolled mesh to the anterior abdominal wall before unfolding it, each side of the mesh is unfolded and fixed ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2007.06.034
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:The aim of the current study was to identify predictors of pathologic complete response (pCR) following neoadjuvant therapy. METHODS:From 2000 to 2007, 518 breast cancer patients received neoadjuvant therapy. Data were compared using chi(2) and Fisher's exact tests and multivariate analysis of variance, as ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2009.06.004
更新日期:2009-10-01 00:00:00
abstract:PURPOSE:The Integrated Procedural Performance Instrument (IPPI) consists of clinical scenarios in which bench-top models are positioned to simulated patients. Trainees are required to perform technical skills while engaging with the patient. The purpose of this study was to determine whether an IPPI format examination ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2008.08.011
更新日期:2009-01-01 00:00:00
abstract::The restitution of blood volume and plasma protein after 10 per cent hemorrhage was studied in intact dogs and in dogs subjected to adrenalectomy and infused with cortisol at basal or physiologically increased rates. The results suggest that increased extracellular osmolality, mediated by an increased secretion of cor...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(75)90513-9
更新日期:1975-11-01 00:00:00
abstract::A new, improved drainage system has been specifically designed to provide either closed suction drainage for the ambulating patient or sump drainage for the patient confined to bed. This drainage system is made of silicone that has a hydrogel coating with a low coefficient of friction. This coating facilitates removal...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(85)80089-1
更新日期:1985-02-01 00:00:00
abstract::The management of primary varicose veins is evolving. Recovery time, cost, recurrence rate, and cosmesis are critical determinants. Classic "high ligation" and ankle-to-groin stripping is expensive, results in a long convalescence, and may produce unacceptable scarring and possible permanent nerve injury. This report ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(91)90182-d
更新日期:1991-08-01 00:00:00
abstract::A procedure of tape-guided living donor left hepatectomy is described. A tape was placed along the anterior wall of the inferior vena cava for left liver with caudate lobe, and along Arantius' ligament for left liver without caudate lobe. The final step of liver transection was applied by dividing the liver parenchyma...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2006.09.044
更新日期:2007-07-01 00:00:00
abstract::Lower esophageal sphincter (LES) effects produced by the mammalian tachykinins were evaluated in anesthetized dogs. The distribution and content of substance P (SP) and neurokinin A (NKA) in the region of the canine gastroesophageal junction was also studied. SP and NKA stimulated a linear dose-dependent contraction o...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(91)90379-r
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:Surgical length of stay (LOS) has been correlated with quality of care, with shorter stays implying better care. The relationship between LOS and postdischarge complications (PDCs) has not been evaluated effectively. METHODS:The 2005 to 2007 National Surgical Quality Improvement Program data were queried fo...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2012.04.006
更新日期:2013-01-01 00:00:00
abstract::A prospective clinical trial was designed to evaluate the efficacy of postoperative jejunostomy feedings using high (44 percent) and low (15 percent) branched-chain amino acid elemental diet formulations compared with no jejunostomy feedings in a homogeneous surgical population. Twenty-eight patients undergoing radica...
journal_title:American journal of surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0002-9610(87)90815-4
更新日期:1987-02-01 00:00:00
abstract:BACKGROUND:Endoscopic retrograde cholangiopancreatography is a challenging procedure performed by surgeons and gastroenterologists. We employed cognitive task analysis to identify steps and decision points for this procedure. METHODS:Standardized interviews were conducted with expert gastroenterologists (7) and surgeo...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2015.05.006
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Motility disturbances in the Roux loop can negatively influence the outcome of reflux gastritis; the uncut Roux loop does not have these disadvantages, but is less suitable for clinical application because of staple dehiscence. The reported "cut-closed-reconnected" Roux loop has the same physiological starti...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(00)00246-4
更新日期:2000-02-01 00:00:00
abstract:PURPOSE:To describe the current practice and opinions held by surgeons performing colorectal surgery in Washington regarding laparoscopic colorectal surgery. METHODS:After attempting to identify all surgeons with hospital privileges in colorectal surgery in Washington, a survey was sent to 303 surgeons. The survey ask...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(03)00112-0
更新日期:2003-07-01 00:00:00
abstract::We studied 48 patients with laryngeal or hypopharyngeal primary tumors with DNA flow cytometry. Twenty-four of the tumors were glottic, 18 were supraglottic, and 6 were from the pyriform sinus. Patients were followed for a minimum of 12 months, with a mean follow-up of 23 months. Twenty-three of the 48 primary tumors ...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/0002-9610(86)90311-9
更新日期:1986-10-01 00:00:00
abstract:BACKGROUND:The increased utilization of expanded criteria kidney donors has necessitated the reevaluation of multiple donor risk factors to insure the best outcome from this valuable resource. Reports of decreased graft survival in recipients of kidneys from donors with > or =20% glomerular sclerosis (GS) have led many...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/s0002-9610(00)00502-x
更新日期:2000-12-01 00:00:00
abstract:BACKGROUND:The upper thigh is an alternative but infrequently used site to the forearm for placement of subcutaneous polytetrafluoroethylene (PTFE) arteriovenous conduits in patients requiring hemodialysis for end stage renal failure. This site has the great advantage of easier accessibility for self-cannulation. METH...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/S0002-9610(96)00405-9
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND:Merkel cell carcinoma (MCC) is a cutaneous neuroendocrine tumor that may spread via lymphatics and can therefore be staged with sentinel lymph node biopsy (SLNB). MCC is radiosensitive and chemosensitive, although the role of adjuvant therapy is still unclear. We examined the impact of different treatments o...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2014.06.013
更新日期:2015-02-01 00:00:00
abstract:BACKGROUND:We performed an evaluation of antimicrobial guidelines for patients with surgical sepsis. METHODS:The purpose of this study was to validate current empiric antibiotic recommendations in our sepsis protocol based on the suspected site of infection. The primary objective was to assess the appropriateness of e...
journal_title:American journal of surgery
pub_type: 杂志文章
doi:10.1016/j.amjsurg.2010.09.001
更新日期:2010-12-01 00:00:00