Abstract:
:The myocardial effects of protamine, with and without heparin, were documented in this investigation. Isolated rabbit hearts (n = 30) were retrograde perfused with Krebs-Ringers bicarbonate solution aerated with 95% O2/5% CO2 through the aortic root (37 C, 80 mmHg). Developed left ventricular blood pressure, heart rate, coronary artery flow, contractility as reflected by peak +dp/dt, oxygen extraction (a-vO2), and oxygen consumption (VO2) were measured at baseline and continuously throughout the experiment. Protamine (25 micrograms, 50 micrograms, and 250 micrograms per mL of perfusate) was circulated in the Krebs-Ringers buffer to hearts perfused without heparin (groups I, II, and III) or hearts perfused with heparin added to the buffer solution, 0.1 IU/1.0 microgram protamine (groups IV, V, and VI). Blood pressure 4 minutes after protamine was less in groups III (-23 mmHg) and VI (-28 mmHg) than in groups I (-6 mmHg), II (-18 mmHg), IV (-1 mmHg), and V (-7 mmHg). Heart rate changes (beats/minute) at 4 minutes revealed similar dose-dependent reductions (III and VI: -51, -55; II and V: -36, -36; and I and IV: -20, -16, respectively). Coronary artery flow at 4 minutes was slightly increased in groups III (9 mL/minute) and VI (15 mL/minute), but was relatively unchanged in the other groups. Decreases in contractility were apparent in all groups 4 minutes after protamine was started: group I, -14%; II, -16%; III, -30%; IV, -7%; V, -15%; and VI, -34%. Similarly declines in oxygen extraction and consumption were noted in all groups at the same time period and were greater in groups III (-53%, -44%) and VI (-55%, -49%) than in groups I (-25%, -26%), II (-15%, -12%), IV (-48%, -49%) and V (-15%, -18%), with p less than or equal to 0.05 or p less than or equal to 0.01 compared to baseline. Three of ten hearts exposed to high-dose protamine stopped beating after 5 minutes. This investigation establishes, for the first time, that protamine has dose- and time-specific adverse effects on cardiac contractility. In addition protamine decreases myocardial a-vO2 and VO2. These changes may contribute to certain adverse events accompanying the clinical administration of protamine.
journal_name
Ann Surgjournal_title
Annals of surgeryauthors
Wakefield TW,Bies LE,Wrobleski SK,Bolling SF,Stanley JC,Kirsh MMdoi
10.1097/00000658-199010000-00001subject
Has Abstractpub_date
1990-10-01 00:00:00pages
387-93; discussion 394issue
4eissn
0003-4932issn
1528-1140journal_volume
212pub_type
杂志文章abstract::Because hospitalization is a key factor in controlling health care costs and because fee-for-service remains the predominant mode of physician payment, a study was undertaken of the hospitalization experiences of open panel fee-for-service health maintenance organizations (IPA-HMOs) and Foundations for Medical Care (F...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197709000-00017
更新日期:1977-09-01 00:00:00
abstract:OBJECTIVE:To find out how women with breast or ovarian cancer rate their chances of carrying hereditary factors for these cancers and to determine the extent to which they overestimate their risk. SUMMARY BACKGROUND DATA:BRCA1 and BRCA2 are genes that cause breast and ovarian cancer when they are inherited in families...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199809000-00010
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:To explore the events and people that shaped Harvey Cushing, one of the nation's leading surgeons, into a political actor as he rallied support for the issue of military medical preparedness for World War One. SUMMARY BACKGROUND DATA:In a little remembered episode of American medical history, for 2 years bef...
journal_title:Annals of surgery
pub_type: 传,历史文章,杂志文章
doi:10.1097/SLA.0b013e3181e77bdc
更新日期:2010-07-01 00:00:00
abstract:OBJECTIVE:We hypothesized that inpatient postoperative pain trajectories are associated with 30-day inpatient readmission and emergency department (ED) visits. BACKGROUND:Surgical readmissions have few known modifiable predictors. Pain experienced by patients may reflect surgical complications and/or inadequate or dif...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000002372
更新日期:2017-09-01 00:00:00
abstract::The etiology of hepatic insufficiency associated with the multiple systems organ failure (MSOF) syndrome is unclear. The authors have investigated the possibility that a macrophage/Kupffer cell mediated modulation of hepatocyte function may play a role in this phenomenon. Isolated rat hepatocytes were cultured, and th...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:
更新日期:1985-01-01 00:00:00
abstract::A randomized clinical trial was undertaken to compare early and delayed cholecystectomy for acute cholecystitis. Patients entering early (n = 83) or delayed (n = 82) surgery groups were comparable with regard to prerandomization data. One patient in the early group and five in the delayed group refused surgery (p < 0....
journal_title:Annals of surgery
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000658-198004000-00018
更新日期:1980-04-01 00:00:00
abstract::To determine the significance of proteolysis and delayed freezing of tumor samples on estrogen receptor levels, values from 19 of 31 biopsy specimens were compared with that in remaining tumor at the completion of mastectomy. There was a 15-100% decrease in receptor content. Time-decay studies on selected postmastecto...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198105000-00003
更新日期:1981-05-01 00:00:00
abstract::An analysis of 584 operations for recurrent inguinal hernia was made in an attempt to determine the cause of the recurrence based on the anatomic findings. The recurrence was indirect in 300, direct in 241, and various other in 43 operations. The causes of the indirect recurrences appeared to be an unrecognized hernia...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198512000-00019
更新日期:1985-12-01 00:00:00
abstract:OBJECTIVE:To report survival, functional, and quality-of-life (QoL) outcomes after extended radical resection for advanced pelvic tumors with en bloc sciatic or femoral nerve resection. BACKGROUND:Advanced pelvic tumors involving the sciatic or femoral nerve have traditionally been considered inoperable. Small studies...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000003390
更新日期:2019-06-07 00:00:00
abstract:OBJECTIVES:The aim of the study was to evaluate and study the full spectrum of swallowing dysfunction and long-term disease-specific outcomes in adults with surgically corrected esophageal atresia/tracheaesophageal fistula (EA/TEF). BACKGROUND:Long-term outcomes for adults who underwent EA/TEF repair because infants a...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001978
更新日期:2017-08-01 00:00:00
abstract::Fibronectin exists in a soluble form in plasma and in an insoluble form in tissues. Plasma fibronectin can modulate phagocytic function as well as incorporate into the tissue matrix where it is believed to influence microvascular integrity and tissue repair. The temporal alterations in plasma and lung lymph fibronecti...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198508000-00016
更新日期:1985-08-01 00:00:00
abstract::As a continuation of work from this laboratory on anticholinesterase induced pancreatitis, a study of the relationship between reduced serum cholinesterase activity and changes in pancreatic intraductal pressure was undertaken. Pharmakokinetic studies in three dogs revealed rapid reduction in serum cholinesterase acti...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197907000-00002
更新日期:1979-07-01 00:00:00
abstract:OBJECTIVES:To clarify whether bowel preparation use or its individual components [mechanical bowel preparation (MBP)/oral antibiotics] impact specific outcomes after colorectal surgery. METHODS:National Surgical Quality Improvement Program-targeted colectomy data initiated in 2012 capture information on the use/type o...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001416
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVE:This study determined how scar formation develops in a non-human primate model of fetal skin repair. SUMMARY BACKGROUND DATA:A transition from healing scarlessly to healing with scar formation characterizes skin repair in rat and sheep fetuses. New knowledge of the regulatory processes occurring in the fetal...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199304000-00011
更新日期:1993-04-01 00:00:00
abstract:OBJECTIVE:The purpose of the present study was to determine the effect of insulin therapy on hepatic function, structure, and hepatic mRNA and protein cytokine expression during the hypermetabolic cascade post burn. SUMMARY BACKGROUND DATA:Liver function and morphology are crucial for survival of patients suffering fr...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/01.sla.0000133353.57674.cd
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:To investigate whether the accuracy of magnetic resonance imaging (MRI) after neoadjuvant systemic therapy (NST) is affected by molecular features of primary breast cancer and the use of human epidermal growth factor receptor 2 (HER2)-targeted agents. BACKGROUND:Improved understanding of factors affecting th...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182686bd9
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the survival and function of hepatocytes (HCs) on a novel three-dimensional (3D) synthetic biodegradable polymer scaffold with an intrinsic network of interconnected channels under continuous flow conditions. SUMMARY BACKGROUND DATA:The authors' laboratory has investigated HC transplantation usin...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199807000-00002
更新日期:1998-07-01 00:00:00
abstract::The relationship between two variables may be mathematically coupled if either one or both variables are derived and/or calculated, and this can lead to erroneous results and invalid conclusions. The purpose of this report is to identify four types of mathematic coupling of data. Type 1 coupling involves directional c...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-198103000-00008
更新日期:1981-03-01 00:00:00
abstract:BACKGROUND:Surgery is the criterion standard for the treatment of severe burns and of late sequels after ingestion of corrosive agents, but long-term outcome is unknown. METHODS:Patients who underwent surgery between 1987 and 2006, for the treatment of severe caustic burns (group I, n = 268) or of late sequels (group ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182583fb2
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:The aim of the present trial was to ascertain whether laparoscopic cholecystectomy (LCC) can prevent recurrent attacks of idiopathic acute pancreatitis (IAP). SUMMARY:Up to 50% to 75% of IAP may be due to microlithiasis, which is undetectable by conventional imaging methods. METHODS:This randomized, prospec...
journal_title:Annals of surgery
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/SLA.0000000000001469
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:To assess whether level of arterial obstruction determines the effectiveness of SET in patients with IC. BACKGROUND DATA:Guidelines advocate SET before invasive treatment for IC, but early revascularization remains widespread, especially in patients with aortoiliac disease. METHODS:Patients were recruited f...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000004073
更新日期:2020-07-24 00:00:00
abstract:OBJECTIVE:To prospectively characterize changes in body weight, satiety, and postprandial gut hormone profiles following esophagectomy. BACKGROUND:With improved oncologic outcomes in esophageal cancer, there is an increasing focus on functional status and health-related quality of life in survivorship. Early satiety a...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001918
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVES:Recent data from Iraq supporting early aggressive use of fresh frozen plasma (FFP) in a 1:1 ratio to packed red blood cells (PRBCs) has led many civilian trauma centers to adopt this resource intensive strategy. METHODS:Prospective data were collected on 806 consecutive trauma patients admitted to the inten...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e31818990ed
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:To study the effects of autologous platelet-rich fibrin (PRF) versus human albumin on incisional wound breaking strength and subcutaneous collagen deposition in patients undergoing laparoscopic cholecystectomy in a randomized trial. SUMMARY BACKGROUND DATA:Platelet peptidic growth factors may stimulate colla...
journal_title:Annals of surgery
pub_type: 杂志文章,随机对照试验
doi:10.1097/SLA.0b013e3181d3548c
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:The role of adjuvant chemoradiation in esophageal cancer has been underestimated in the literature. This study was undertaken to determine whether adjuvant chemoradiation improves survival compared with surgery alone. METHODS:Data of 1095 esophageal squamous cell carcinoma (ESCC) patients, including 679 in ...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001410
更新日期:2016-07-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to determine whether weekday of esophagectomy impacts 30-day mortality, and short- and long-term oncologic outcomes in esophageal cancer. SUMMARY OF BACKGROUND DATA:Recent literature suggests a relationship between the weekday of esophagectomy and overall survival. This finding coul...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0000000000001909
更新日期:2017-07-01 00:00:00
abstract::The case records of the Connecticut Tumor Registry were reviewed from 1952-1982. There were 37 cases of adenoid cystic carcinoma of the breast (ACC) from a total of 40,350 invasive breast tumors. Patient survival, complications, and pathologic sections were reviewed. Only 14 of 27 surgical pathology slides available f...
journal_title:Annals of surgery
pub_type: 杂志文章,评审
doi:10.1097/00000658-198703000-00013
更新日期:1987-03-01 00:00:00
abstract::Gastric carcinoma following operation for benign peptic ulcer disease has been considered rare but nine patients have been seen during the past five years. All were male patients, the average time interval from prior ulcer operation to development of cancer was 17 years, but was a short as ten years. The symptoms of c...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-197803000-00007
更新日期:1978-03-01 00:00:00
abstract::The induction of donor-specific tolerance could prevent the side effects of immunosuppression while improving allograft survival. Male adult Buffalo (RT1b) rats underwent an intrathymic (IT), portal venous (PV), intrasplenic (IS), or subcutaneous (SQ) injection of 25 x 10(6) major histocompatibility complex (MHC) mism...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/00000658-199210000-00003
更新日期:1992-10-01 00:00:00
abstract:OBJECTIVE:Because continuity of care (CC) is a necessary component of resident education, this analysis was done to understand what keeps CC between residents and patients low and how it can be most effectively improved. BACKGROUND:Many authors lament low CC between residents and patients, especially in the era of dut...
journal_title:Annals of surgery
pub_type: 杂志文章
doi:10.1097/SLA.0b013e3182468dcf
更新日期:2012-04-01 00:00:00