Abstract:
:The effects of the Trendelenburg (TREND) position and passive straight leg raising (PLR) on cardiopulmonary performance in 18 anesthetized patients undergoing myocardial revascularization were studied with a two-dimensional transesophageal echocardiography probe and a thermodilution right ventricular ejection fraction (RVEF) pulmonary artery catheter. The TREND position (at 20 degrees) and PLR (at 60 degrees) were studied in relation to the level-supine position in random order. At 3 min, the TREND caused significant (p less than .05) decreases in heart rate (62 +/- 9 to 58 +/- 10 [SD] beat/min) and RVEF (0.48 +/- 0.11 to 0.44 +/- 0.10), and significant increases in mean arterial pressure (77 +/- 11 to 82 +/- 11 mm Hg), mean pulmonary artery pressure (16 +/- 4.3 to 19 +/- 5.5 mm Hg), wedge pressure (11 +/- 4 to 13 +/- 4 mm Hg), cardiac index (CI) (2.36 +/- 0.79 to 2.52 +/- 0.93 L/min.m2), right ventricular end-systolic volume index (44 +/- 21 to 58 +/- 21 ml/m2), right ventricular end-diastolic volume index (83 +/- 24 to 102 +/- 22 ml/m2), and shunt fraction (0.16 +/- 0.06 to 0.19 +/- 0.06). CVP and left ventricular areas did not change significantly. PLR had similar effects as the TREND position, except CI did not change significantly. Thus, the TREND and PLR resulted in minor hemodynamic improvement with right ventricular dilation, decreased RVEF, and impaired oxygenation in the anesthetized cardiac surgical patient.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Reich DL,Konstadt SN,Raissi S,Hubbard M,Thys DMdoi
10.1097/00003246-198904000-00003subject
Has Abstractpub_date
1989-04-01 00:00:00pages
313-7issue
4eissn
0090-3493issn
1530-0293journal_volume
17pub_type
临床试验,杂志文章,随机对照试验abstract:OBJECTIVES:We sought to review findings from recent literature on the postresuscitation care of cardiac arrest patients using therapeutic hypothermia as part of nontrial treatment. DESIGN:Literature review. SETTING:Hospital-based environment. SUBJECTS:Patients initially resuscitated from cardiac arrest who underwent...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e3181aa5c7c
更新日期:2009-07-01 00:00:00
abstract::Hypophosphatemia may occur in Reye's syndrome. We retrospectively studied 42 patients with Reye's syndrome to determine the frequency and degree of hypophosphatemia, to identify possible causes, and to determine whether hypophosphatemia was related to the severity of disease or mortality. Nineteen (46%) patients were ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198506000-00008
更新日期:1985-06-01 00:00:00
abstract:PURPOSE:To describe the dark side of pediatric intensive care fellowship training and offer educational approaches for understanding feelings of fallibility, anger, frustration, and loss. DATA SOURCES:Listening and observing fellows in the courses of their pediatric intensive care training and later careers. STUDY SE...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/00003246-199305000-00023
更新日期:1993-05-01 00:00:00
abstract::These guidelines were developed to provide a reference for preparing policies on admission and discharge for pediatric intensive care units (PICUs). They represent a consensus opinion of physicians, nurses, and allied health care professionals. By using this document as a framework for developing multidisciplinary adm...
journal_title:Critical care medicine
pub_type: 指南,杂志文章,实务指引
doi:
更新日期:1999-04-01 00:00:00
abstract:OBJECTIVE:Preoperative intra-aortic balloon pumping (IABP) improves the results of complex coronary surgery. However, its insertion may be harmful or contraindicated in cases of severe and diffuse atherosclerosis of the descending aorta and peripheral arteries. We sought to evaluate the efficacy and safety of transbrac...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000229884.94475.DB
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVES:To determine: a) any heart site or tissue-specific differences in the response to increased perfusion potassium concentrations, and b) the cellular site (intracellular vs. extracellular) of the effect of calcium on reversing electrocardiographic effects of hyperkalemia. DESIGN:In vitro prospective, repeated...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract:OBJECTIVE:Artery puncture and hematoma formation are the most common immediate complications during internal jugular vein catheterization. This study was performed to assess whether the bevel-down approach of the puncture needle decreases the incidence of posterior venous wall damage and hematoma formation during inter...
journal_title:Critical care medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/CCM.0b013e318232da48
更新日期:2012-02-01 00:00:00
abstract:OBJECTIVE:To examine the longitudinal outcome of a cohort of mechanically ventilated patients admitted to an acute care respiratory unit after critical illness. DESIGN, SETTING, AND PATIENTS:Prospective, observational study of 210 consecutive patients admitted to a respiratory unit of an acute, tertiary care universit...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000287589.16724.B2
更新日期:2007-11-01 00:00:00
abstract:OBJECTIVE:The flow rate of a liquid drainage from the lungs is limited because of the elastic nature of the airways. This study was designed to clarify the relationship between intrapulmonary liquid volume and the development of the flow limitation or choked flow phenomenon as a function of expiratory flow rate during ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000104918.48411.91
更新日期:2004-01-01 00:00:00
abstract::The validity of the urinary urea nitrogen (UUN) estimate of total urinary nitrogen (TUN) was tested in patients who required iv nutrition. UUN and TUN were determined in 120 urine collections from ten preoperative, 13 postoperative, and 11 stressed patients. The relationship between TUN and UUN was examined by linear ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198904000-00002
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVES:Survivors of critical illness in early life are at risk of long-term-memory and attention impairments. However, their neurobiologic substrates remain largely unknown. DESIGN:A prospective follow-up study. SETTING:Erasmus MC-Sophia Children's Hospital, Rotterdam, the Netherlands. PATIENTS:Thirty-eight scho...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000002553
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:Although studies have indicated that adrenal insufficiency occurs after severe trauma and hemorrhagic shock, it remains controversial whether adrenal function is depressed during the late stage of polymicrobial sepsis. DESIGN:Prospective, controlled animal study. SETTING:A university research laboratory. ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200103000-00026
更新日期:2001-03-01 00:00:00
abstract:CONTEXT:The results of studies on noninvasive positive pressure ventilation (NPPV) for acute hypoxemic respiratory failure unrelated to cardiogenic pulmonary edema have been inconsistent. OBJECTIVE:To assess the effect of NPPV on the rate of endotracheal intubation, intensive care unit and hospital length of stay, and...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.ccm.0000148011.51681.e2
更新日期:2004-12-01 00:00:00
abstract:OBJECTIVES:To assess the specific host responses to systemic endotoxemia and tumor necrosis factor (TNF) activation after abdominal aortic aneurysm surgery by measuring antiendotoxin core antibodies (EndoCab) immunoglobulin (Ig)G and IgM, and soluble p55TNF receptor concentrations. The role of the gut in initiating the...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199709000-00013
更新日期:1997-09-01 00:00:00
abstract:OBJECTIVE:To determine the effect of a bolus infusion of diaspirin cross-linked hemoglobin (DCLHb or hemoglobin crosfumaril) on the ileal mucosal microcirculation in septic rats. DESIGN:Prospective, randomized, single-blinded study. SETTING:University-affiliated animal research laboratory. SUBJECTS:Twenty-four male ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200003000-00029
更新日期:2000-03-01 00:00:00
abstract:OBJECTIVES:To evaluate the cardiovascular response and acute stress reaction after arousal induced by a benzodiazepine antagonist, flumazenil, in patients sedated with midazolam. DESIGN:Prospective study. SETTING:Emergency center in a university hospital. PATIENTS:A total of 12 patients were ventilated mechanically ...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00003246-200002000-00005
更新日期:2000-02-01 00:00:00
abstract::A simple, safe, and effective system for umbilical artery monitoring controls continuous fluid infusion to prevent fluid overinfusion and keep the catheter from clotting. Accurate and continuous pressure measurements can be recorded simultaneously with fluid infusion. A convenient method for checking dynamic response ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198207000-00009
更新日期:1982-07-01 00:00:00
abstract:OBJECTIVES:To measure temporal trends in survival over time in people with severe coronavirus disease 2019 requiring critical care (high dependency unit or ICU) management, and to assess whether temporal variation in mortality was explained by changes in patient demographics and comorbidity burden over time. DESIGN:Re...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000004747
更新日期:2021-02-01 00:00:00
abstract:OBJECTIVE:Pulmonary air embolism, causing vessel obstruction and primary or secondary reactions of blood, can lead to acute lung injury. In addition, nitric oxide has been known to play a key role in various causes of lung injury. In this study we employed the isolated rat lung model to investigate the effects of l-arg...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000178175.54354.ea
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:To assess the mortality rate and complications in a population of surgical patients with severe adult respiratory distress syndrome (ARDS) treated with positive end-expiratory pressure (PEEP) of > 15 cm H2O in an attempt to reduce intrapulmonary shunt to approximately 0.20 and reduce FIO2 to < 0.50. DESIGN:R...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199509000-00008
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVES:To describe the impact of choice of therapy on renal recovery. DESIGN:Literature review. MAIN RESULTS:Randomized controlled trials conducted have not shown a benefit of continuous renal replacement therapy in mortality over intermittent renal replacement therapy. However, renal recovery is another importan...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e318168e4a8
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVE:Inadequate nutrition is common in critical illness due in part to gastric stasis. However, recent data suggest that altered small intestinal mucosal function may be a contributing factor. The aim of this study was to examine the effects of critical illness on sucrose absorption, permeability, and mucosal morp...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31827ca2fa
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:This pilot study was designed to identify which contextual factors facilitate/hinder the implementation of the awakening, breathing, coordination, delirium, and early mobility (ABCDE) bundle for guidance in future studies. DESIGN:The sources of data for this study included document review, planned site visit...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182a2c2b1
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that the hypocalcemia and hypoparathyroidism that follow severe burn injury are related to up-regulation of the parathyroid gland calcium-sensing receptor (CaR), which may reduce the set-point for suppression of circulating parathyroid hormone by blood calcium. DESIGN:A controlled but ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200012000-00024
更新日期:2000-12-01 00:00:00
abstract:OBJECTIVE:The physicochemical approach, described by Stewart to investigate the acid-base balance, includes the strong ion gap (SIG), a quantitative measure of "unmeasured" anions, which strongly correlates to the corrected anion gap. The chemical nature of these anions is for the most part unknown. We hypothesized tha...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0B013E31816443CB
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVE:Anemia increases risk of bleeding complications in the critically ill. In primary intracerebral hemorrhage (ICH), the most fatal type of stroke, outcome is largely dependent on the volume of hemorrhage into the brain. We investigated the relationship between anemia and clinical course of acute ICH. METHODS:S...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e31819ced3a
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVES:Explosive traumatic injury to an extremity may lead to both local and distant organ injury. Regional traumatic tissue hypothermia has been reported to offer systemic protection; here we investigated the protective effects of regional limb hypothermia on local tissue trauma and the lungs. Furthermore, the opt...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e3182a84daa
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:To define the features of human amniotic mesenchymal stromal cell secretome and its protective properties in experimental models of acute brain injury. DESIGN:Prospective experimental study. SETTING:Laboratory research. SUBJECTS:C57Bl/6 mice. INTERVENTIONS:Mice subjected to sham or traumatic brain injury...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000001864
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:To determine whether chest wall vibration with tracheal gas insufflation during bronchoconstriction maintains gas exchange at lower airway and intrathoracic pressures than those that occur during positive pressure ventilation. DESIGN:Prospective study. SETTING:Experimental laboratory. SUBJECTS:Six anesthet...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200007000-00057
更新日期:2000-07-01 00:00:00
abstract:OBJECTIVES:To determine the accuracy of intramucosal pH (pHi) calculated using arterial bicarbonate instead of mucosal capillary bicarbonate in the Henderson-Hasselbalch equation. DESIGN:Simulation of progressive ischemia in mucosal capillary blood. SETTING:University research laboratory. SUBJECTS:Normal human blood...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199911000-00028
更新日期:1999-11-01 00:00:00