Abstract:
:We estimated ambulatory venous pressure (AVP) noninvasively with a new technique of quantitative photoplethysmography (PPG). Postural changes of hydrostatic pressure permitted in vivo calibration of the PPG. We recorded quantitative PPG and AVP in 14 normal subjects and 14 patients with postthrombotic chronic venous insufficiency. The results were contrasted with qualitative PPG recordings on 41 consecutive patients with chronic venous insufficiency. All but one of the latter patients demonstrated a decrement in skin blood content with exercise of the calf muscle, and shortened recovery time ws the only significant indicator of venous disease. Quantitative PPG correlated closely with AVP with respect to both estimated drop in superficial venous pressure (r = 0.97, P less than 0.001) and recovery time (r = 0.98, P less than 0.001). PPG estimates of intravenous pressure in normal and postthrombosis patients, 42 +/- 10 and 62 +/- 18 mm Hg, respectively, agreed with AVP measurements, 39 +/- 9 and 61 +/- 18 mm Hg, respectively. Quantitative PPG may prove to be an accurate estimate of AVP in patients with suspected chronic venous insufficiency.
journal_name
Surgeryjournal_title
Surgeryauthors
Norris CS,Beyrau A,Barnes RWsubject
Has Abstractpub_date
1983-11-01 00:00:00pages
758-64issue
5eissn
0039-6060issn
1532-7361pii
0039-6060(83)90063-6journal_volume
94pub_type
杂志文章相关文献
SURGERY文献大全abstract::Multivisceral isografts and allografts were transplanted to Lewis rats, and the histopathologic changes were studied in the liver, intestine, and other constituent organs. Rats receiving isografts had indefinite survival with maintenance of weight. With multivisceral allografts (from Brown-Norway donors), the intestin...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1990-11-01 00:00:00
abstract:BACKGROUND:Neuroendocrine neoplasms most commonly metastasize to the liver. Operative extirpation of neuroendocrine neoplasm hepatic metastases improves symptoms and seems to improve survival, but subsequent evidence is required. The current study evaluates the progression-free survival and overall survival of patients...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2010.06.008
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Propranolol has been shown previously to restore bone marrow function and improve anemia after lung contusion/hemorrhagic shock. We hypothesized that daily clonidine administration would inhibit central sympathetic outflow and restore bone marrow function in our rodent model of lung contusion/hemorrhagic sho...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2016.08.043
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:Hepatopancreatobiliary surgery has a high incidence of postoperative morbidity, including incisional surgical site infection. Although several studies showed that subcuticular sutures reduced incisional surgical site infection in other fields of surgery, their impact on hepatopancreatobiliary surgery remains...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2018.04.002
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Pancreatic endocrine tumors (PETs) may secrete a variety of peptide hormones, either alone or in combination, and intravenously administered provocative agents have been used to stimulate hormone release to aid in the diagnosis and localization in suspected cases. These features of PETs led us to perform det...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract:BACKGROUND:Clinical parameters influencing the effect of preoperative portal vein embolization (PVE) in hypertrophying the nonembolized lobe of patients with either normal or abnormal liver parenchyma and its effect upon portal pressure were examined to identify the patient population for whom this approach is most sui...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1067/msy.2002.118259
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:Activated factor X (FXa) is involved in hemostasis, thrombogenesis, inflammation, and cellular immune response. Tissue factor (TF) is an initiator of blood coagulation. We investigated whether FXa induces TF expression in human peripheral monocytes and whether treatment with FXa inhibitor reduces TF expressi...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1067/msy.2001.116452
更新日期:2001-11-01 00:00:00
abstract::Active-specific immunotherapy with concanavalin A or with neuraminidase-modified syngeneic tumor cells has been studied in an experimental model of colon cancer. Systemic immunotherapy with concanavalin A-modified tumor cells or with neuraminidase-modified tumor cells has resulted in up to 70 percent cure of rats rece...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1976-08-01 00:00:00
abstract::Abdominal wall defects created in Sprague-Dawley rats were repaired with either polypropylene mesh (PPM) or expanded polytetrafluoroethylene patch (PTFE). Tensiometric studies of abdominal wall strength showed that PPM and expanded PTFE provided a strong repair in uninfected wounds. Wounds reconstructed with expanded ...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1991-05-01 00:00:00
abstract:BACKGROUND:Our ability to predict respiratory compromise during general anesthesia in a child with an anterior mediastinal mass is limited. Two prior reports have found a correlation between adequacy of ventilation during general anesthesia and the tracheal cross-sectional area obtained from computed tomograms (compute...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/s0039-6060(05)80360-5
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:The objective of this study was to examine the clinicopathologic characteristics of solid pseudopapillary tumors (SPTs) of the pancreas, including the risk factors for disease recurrence and their effects on survival. METHODS:The medical records of 114 patients who underwent surgery for a pathologically con...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2010.11.005
更新日期:2011-05-01 00:00:00
abstract::Using software to transform magnetic resonance imaging (MRI) tomographic data into three-dimensional projections, we have produced "angiograms" of the abdominal aorta in 18 patients with occlusive (15) and aneurysmal (3) disease. This information may be displayed to demonstrate flow, cross-sectional diameter, or aorti...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:Hospitals are increasingly focused on demonstration of high-value care for common surgical procedures. Although sociodemographic status (SDS) factors have been tied to various surgical outcomes, the impact of SDS factors on hospital value rankings has not been well explored. Our objective was to examine effe...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2015.12.009
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:Despite the recommendations of the Advanced Trauma Life Support course of the American College of Surgeons, patients undergo computed tomography (CT) in local hospitals before transfer to a trauma center. The problem of repeat CTs caused by technical and protocol issues is ongoing. The objective is to measur...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2018.07.007
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND:Nodal status is one of the most important prognostic factors for carcinoma of the papilla of Vater. The pattern of lymphatic spread and mode of recurrence were analyzed by determining the frequency of nodal involvement and antemortem and postmortem examination of patients with recurrent disease. METHODS:Fro...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/s0039-6060(97)90048-9
更新日期:1997-06-01 00:00:00
abstract::We investigated the effects of infusion of somatostatin (200 and 500 ng/kg/min) on central hemodynamics and renal blood flow measured with radioactive microspheres. At the lower dose infusion rate somatostatin did not alter any hemodynamic parameter, but at 500 ng/kg/min somatostatin caused minor transient bradycardia...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1985-03-01 00:00:00
abstract::That the fetus swallows amniotic fluid and has the capability of intestinal absorption of protein and carbohydrate is known, but its significance in fetal nutrition is not clear. We have infused nutrient solutions of dextrose and amino acids intra-amniotically in a chronic third-trimester fetal rabbit model and examin...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1985-09-01 00:00:00
abstract:BACKGROUND:Determination of the genetic composition of papillary thyroid cancers may help explain differences in observed clinical behavior. Comparative genomic hybridization (CGH) is a novel molecular cytogenetic assay that allows simultaneous detection of gains, losses, and amplification of genetic information, makin...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1067/msy.2000.110847
更新日期:2000-12-01 00:00:00
abstract::We prospectively sampled 38 large soft tissue masses in 37 patients with both core needle biopsy (CNBX) and fine-needle aspiration (FNA) to determine the diagnostic utility of these biopsy methods. In 27 cases the histologic diagnosis made from the resected specimen was compared with the diagnosis based on the biopsy....
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
abstract::During the recent 5 2/3 years, hepatic resection was performed on 118 patients with hepatocellular carcinoma. Ages ranged from 17 to 78 years with an average of 57 years. There were 101 males and 17 females. Underlying cirrhosis of the liver was found in 101 cases, and chronic hepatitis was found in 16 cases. Before s...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1986-06-01 00:00:00
abstract:BACKGROUND:Adaptation after massive smallbowel resection (SBR) is associated with increased cell turnover, increased rates of enterocyte proliferation, and apoptosis. Epidermal growth factor receptor (EGFR) inhibition attenuates adaptation and increases apoptosis. Intestinal levels of bax appear to correlate with EGFR ...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2004.04.004
更新日期:2004-08-01 00:00:00
abstract::Adrenal scintigraphy with 131I-6 beta-iodomethylnorcholesterol (NP-59) has been widely used to evaluate adrenal cortical tumors during the past 20 years. Unilateral visualization on the side of an adrenal tumor has been considered diagnostic of a benign adrenocortical adenoma in the patient with Cushing's syndrome. Bi...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1992-11-01 00:00:00
abstract::Insulin-glucose homeostasis was examined in 62 patients with chronic pancreatitis (CP). All patients were graded on the basis of test results from five studies: (1) endoscopic retrograde cholangiopancreatography, (2) fat-stimulated release of pancreatic polypeptide (PP), (3) NBT-bentiromide PABA test, (4) 72-hour feca...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1988-12-01 00:00:00
abstract:BACKGROUND:Carcinoid tumors of the duodenum are rare, and their natural history has not been defined. Consequently, there is no consensus on the optimal extent of surgical treatment. METHODS:The authors reviewed the records of all patients with primary carcinoid tumors of the duodenum treated at their institution from...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2005.09.016
更新日期:2005-12-01 00:00:00
abstract:BACKGROUND:Although task training on virtual reality (VR) simulators has been shown to transfer to the operating room, to date no VR curricula have been described for advanced laparoscopic procedures. The purpose of this study was to develop a proficiency-based VR technical skills curriculum for laparoscopic colorectal...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2011.08.005
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:A laparoscopic approach to adrenalectomy has become the procedure of choice for most adrenal resections. We hypothesized that laparoscopic adrenalectomy is less likely to result in intensive care unit (ICU) level complications or death than open adrenalectomy, despite baseline comorbidity mix. METHODS:Using...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2012.08.020
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:The hypothesis of this study was that differences exist among patients with private insurance compared with patients with Medicaid or no insurance, regarding access to the timely treatment of abdominal aortic aneurysms (AAAs) and the outcomes of AAA repair. METHODS:The study comprised 5363 patients aged les...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1067/msy.2003.214
更新日期:2003-08-01 00:00:00
abstract::We have reported on a patient with isolated metachronous renal artery emboli. The second embolus was treated successfully surgically 12 hours after the onset of symptoms. A review of the literature shows that emboli to the renal arteries occur more frequently than realized and that late embolectomy often is successful...
journal_title:Surgery
pub_type: 杂志文章,评审
doi:
更新日期:1976-01-01 00:00:00
abstract:BACKGROUND:To improve the therapeutic strategy for esophageal squamous cell carcinoma (ESCC), combined neoadjuvant chemotherapy (NAC) followed by operative surgical resection has been applied recently to patients at clinical stages II/III. Our study aimed to elucidate the impact of the circumferential resection margin ...
journal_title:Surgery
pub_type: 杂志文章
doi:10.1016/j.surg.2015.06.044
更新日期:2016-02-01 00:00:00
abstract::The central venous dialysis catheter has gained wide acceptance for short-term hemodialysis with the realization of the need to spare peripheral extremity vessels for the creation of more durable internal arteriovenous fistulas. The Hemocath (Quinton Instrument Co., Seattle, Wash.), a soft, silicone rubber, double-lum...
journal_title:Surgery
pub_type: 杂志文章
doi:
更新日期:1987-11-01 00:00:00