Abstract:
OBJECTIVE:Anecdotal reports suggest that propofol (Diprivan) may stimulate mucus hypersecretion in patients without pulmonary disease. The purpose of this study was to evaluate the effect of methohexital or propofol anesthesia on the physical and transport properties of airway mucus in spontaneously breathing dogs. DESIGN:Randomized, controlled, crossover laboratory study. SETTING:University laboratory. SUBJECTS:Four healthy, purpose-bred female beagle dogs. INTERVENTIONS:Dogs were anesthetized with 5 mg/kg of propofol by intravenous bolus followed by a maintenance infusion at 0.4 mg x kg(-1) x min(-1) or 4 mg/kg of methohexital followed by an infusion at 0.3 mg x kg(-1) x min(-1). Premedication with 0.05 mg/kg of acepromazine was given, and either atropine (0.2 mg) or saline was given by intravenous bolus at the time of induction. Dogs were intubated but spontaneously breathing throughout the experiment. Tracheal secretions were collected after induction and again after 40 mins. MEASUREMENTS AND MAIN RESULTS:The volume of secretions collected on the endotracheal tube during the 1.5-hr experiment and on a bronchoscopy brush over 10 mins during the experiment was measured. Tracheal epithelial potential difference was measured bronchoscopically by saturated agar bridges, and tracheal mucus transport velocity was determined by timing particle transport. The dynamic viscoelasticity of collected mucus was assessed by microrheometry, and secretion mucociliary transportability was measured in vitro. There were no differences in any physical or transport properties of airway secretions that could be attributed to the anesthetic agent. Secretion volume was significantly lower (p < .05) and epithelial potential difference was significantly higher (p = .03) with atropine premedication. Despite this, there were no differences in tracheal mucus transport velocity, viscoelasticity, or secretion mucociliary transportability with either anesthetic agent or with atropine. CONCLUSIONS:This study suggests that neither methohexital nor propofol significantly affects mucus secretion or clearance in healthy dogs.
journal_name
Crit Care Medjournal_title
Critical care medicineauthors
Padda GS,Kishioka C,Rubin BKdoi
10.1097/00003246-200105000-00035subject
Has Abstractpub_date
2001-05-01 00:00:00pages
1045-8issue
5eissn
0090-3493issn
1530-0293journal_volume
29pub_type
杂志文章abstract:OBJECTIVE:The role of family interests in medical decision making is controversial. Physicians who routinely treat incompetent patients may have preferred strategies for addressing family interests as they are encountered in surrogate medical decision making. We sought to determine how physicians view the role of famil...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.ccm.0000084805.15352.01
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVE:To study the impact of diabetes mellitus on the relationship between glycemia and mortality in critically ill patients. DESIGN:Retrospective observational study. SETTING:Intensive care units of two university hospitals. PATIENTS:Cohort of 4946 critically ill patients including 728 patients with diabetes me...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e318181039a
更新日期:2008-08-01 00:00:00
abstract:OBJECTIVE:To determine whether the supplementation of parenteral nutrition with ω-3 fatty acids confers treatment benefits to critically ill adult patients. DATA SOURCE:We performed computerized searches for relevant articles from 1996 to June 2011 on MEDLINE, EMBASE, and the Cochrane register of controlled trials and...
journal_title:Critical care medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/CCM.0b013e3182657578
更新日期:2013-01-01 00:00:00
abstract::The current investigation describes the morphological and pathophysiological effects of stroma-free hemoglobin solution (SFH) on the liver and kidney. One h after a 75% blood volume exchange in animals receiving 7% SFH, hepatic morphology was normal. Animals whose blood was similarly exchanged with 7% albumin demonstr...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198204000-00011
更新日期:1982-04-01 00:00:00
abstract::The effects of hypertonic mannitol on postischemic cerebral circulation were studied in 20 dogs. Mannitol, 2 g/kg iv, was infused into ten dogs during a 2-h period starting 1.5 h after 6 min of complete cerebral ischemia. One hour postischemia, regional cerebral blood flow (rCBF) was 36% in the control group (ten dogs...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198607000-00010
更新日期:1986-07-01 00:00:00
abstract:OBJECTIVES:Studies have shown that endothelium-dependent relaxation (mediated by endothelium-derived nitric oxide) is depressed during the early, hyperdynamic stage of sepsis. Although it is known that ATP-MgCl2 produces beneficial effects following various adverse circulatory conditions, it remains unknown whether thi...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199905000-00035
更新日期:1999-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the potential clinical, metabolic, and economic advantages of enteral nutrition over total parenteral nutrition. DESIGN:Prospective, randomized clinical trial. SETTING:Department of surgery in a university hospital. PATIENTS:Two hundred and fifty-seven patients with cancer of the stomach (n = 1...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-200102000-00003
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:To develop a pharmacokinetic-pharmacogenomic population model of morphine in critically ill children with acute respiratory failure. DESIGN:Prospective pharmacokinetic-pharmacogenomic observational study. SETTING:Thirteen PICUs across the United States. PATIENTS:Pediatric subjects (n = 66) mechanically ven...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003741
更新日期:2019-06-01 00:00:00
abstract::Perfluorocarbon (PFC) emulsions are promising oxygen-carrying blood supplements for the treatment of shock and in organ preservation for transplantation. We used the isolated, blood-perfused, canine right lower lung lobe (RLL) to determine the effect of a PFC emulsion, Oxypherol (FC-43), upon lung fluid balance and he...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198512000-00006
更新日期:1985-12-01 00:00:00
abstract:OBJECTIVE:Resuscitation of hemorrhagic hypotension after traumatic brain injury is challenging. A hemoglobin-based oxygen carrier may offer advantages. The novel therapeutic hemoglobin-based oxygen carrier, polynitroxylated pegylated hemoglobin (PNPH), may represent a neuroprotective hemoglobin-based oxygen carrier for...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0b013e318206b1fa
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVE:To study the effect of early and continuous venovenous hemofiltration (CVVH) on the plasma concentrations of several humoral mediators of inflammation and subsequent organ dysfunction in septic patients. DESIGN:Randomized, controlled trial. SETTING:Intensive care unit of a tertiary hospital. PATIENTS:Twent...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-200201000-00016
更新日期:2002-01-01 00:00:00
abstract::The tradition of clinical ultrasound in the hands of physicians who provide critical care to the most acutely ill patients stretches back into the 1980s and is rich with experiences from surgical, emergency medicine, and other practices. Now, as critical care ultrasound explodes around the world, it is important to re...
journal_title:Critical care medicine
pub_type: 历史文章,杂志文章
doi:10.1097/01.CCM.0000260623.38982.83
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVE:Sepsis is a frequent cause of admission, but incidence rates based on administrative data have previously produced large differences in estimates. The aim of the study was to estimate the incidence of community-acquired sepsis based on patients' symptoms and clinical findings at arrival to the hospital. DESI...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000000611
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to evaluate the long-term cardiopulmonary outcome at ages 10-15 yrs following neonatal extracorporeal membrane oxygenation (ECMO). The specific aims of the study were to assess baseline aerobic capacity, cardiac function, and pulmonary function in neonatal ECMO survivors using gr...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/01.CCM.0000084856.00372.CE
更新日期:2003-09-01 00:00:00
abstract::The objectives of this article were to review the causes and extent of hospital-associated infectious diarrhea and associated risks in the general hospital ward and intensive care unit (ICU), to compare microorganisms with similar symptoms to aid in recognition that will lead to timely and appropriate treatment and co...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e3181e69f05
更新日期:2010-08-01 00:00:00
abstract::Seven dogs with electromagnetic flow probes implanted on their main (QT) and left (QL) pulmonary arteries, had catheters placed in their left atria and pulmonary artery, and were ventilated via Carlen's double-lumen endotracheal tubes. The effect of high-frequency oscillation (HFO) on the redistribution of pulmonary b...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198405000-00008
更新日期:1984-05-01 00:00:00
abstract:OBJECTIVE:To examine the value of laser bronchoscopy in patients with inoperable carcinoma of the lung who required ventilatory assistance for acute respiratory failure. DESIGN:Retrospective review of the medical records of all patients undergoing laser bronchoscopy. SETTING:The Lahey Clinic Medical Center, a tertiar...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199303000-00016
更新日期:1993-03-01 00:00:00
abstract:OBJECTIVE:To examine the effects of hypertonic (7.5%) saline-6% dextran 70 (HSD) and isotonic (0.9%) saline-6% dextran 70 (ISD) on cardiovascular function and intestinal perfusion in experimental endotoxin shock. DESIGN:Experimental, randomized, unblinded, interventional study. SETTING:University experimental animal ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200008000-00027
更新日期:2000-08-01 00:00:00
abstract::Critical care clinicians no longer consider family members as visitors in the intensive care unit. Family-centered care has emerged from the results of qualitative and quantitative studies evaluating the specific needs of families of patients dying in the intensive care unit. In addition, interventional studies have e...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/01.CCM.0000237049.44246.8C
更新日期:2006-11-01 00:00:00
abstract::End tidal CO2 tension (PetCO2) and transcutaneous CO2 tension (PtcCO2) were compared with arterial CO2 (PaCO2) before and after withdrawal of mechanical ventilation in 20 patients predisposed to hypercarbia. With stable PaCO2 during mechanical ventilation, the correlation coefficient (r) between PaCO2 and PetCO2 was ....
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198708000-00011
更新日期:1987-08-01 00:00:00
abstract:OBJECTIVE:To study the course of gastric regional PCO2 (PrCO2) in patients with cardiogenic shock requiring intra-aortic balloon (IAB) counterpulsation and the prognostic value of PrCO2 in this patient population. DESIGN:A prospective, observational clinical study. SETTING:Medical intensive care unit in a university ...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-200010000-00013
更新日期:2000-10-01 00:00:00
abstract::Twenty-seven surgical patients who developed post-extubation hypoxemia unresponsive to routine respiration therapy (incentive spirometry and chest physical therapy) received continuous positive airway pressure (CPAP) delivered through a mask at an inspired oxygen fraction (FIO2) of 0.45. All patients responded with an...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198501000-00012
更新日期:1985-01-01 00:00:00
abstract::In a prospective randomized study to determine whether prevention of colonization of Gram-negative bacteria results in prevention of Gram-negative bacterial infections, 96 intensive care patients were randomly allocated into a control group and a study group. The study group received oral nonabsorbable antimicrobial a...
journal_title:Critical care medicine
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00003246-198811000-00001
更新日期:1988-11-01 00:00:00
abstract::The Hemoccult slide test is used frequently to test for the presence of occult blood in samples of gastric juice obtained from critically ill patients. The purpose of this study was to investigate the accuracy of this test to determine the presence of blood in human gastric juice at various pH values. Gastric aspirate...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198210000-00016
更新日期:1982-10-01 00:00:00
abstract:OBJECTIVE:To review the rationale for the regionalization of adult critical care and discuss how lessons from the trauma experience may be relevant to this debate. DESIGN:Narrative review and opinion. RESULTS:Variation in the quality of critical care among hospitals has prompted calls for regionalization of care for ...
journal_title:Critical care medicine
pub_type: 杂志文章,评审
doi:10.1097/CCM.0b013e31818c37b2
更新日期:2008-11-01 00:00:00
abstract::The need for closed-loop control of blood pressure in acute hypertension after cardiac surgery was evaluated by estimating the amount of nurse-time required to adjust the infusion rate of sodium nitroprusside. The evaluation consisted of a nationwide telephone survey of head nurses in postsurgical ICUs at 9 institutio...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198212000-00005
更新日期:1982-12-01 00:00:00
abstract::Doppler ultrasound was used to study cerebral hemodynamics in the pericallosal artery of 21 newborn infants undergoing extracorporeal membrane oxygenation (ECMO) for intractable respiratory failure. Cerebral blood flow velocity waveforms were obtained pre-ECMO, after every major change in cardiopulmonary bypass flow d...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-199001000-00003
更新日期:1990-01-01 00:00:00
abstract::Cerebral arteriovenous differences in oxygen content [C(a-v)O2] and glucose content [C(a-v)gluc] were used to predict outcome in 20 patients who remained comatose after resuscitation for cardiopulmonary arrest. Cerebral prognosis was good when C(a-v)O2 values were greater than 1.8 mMol/L and the oxygen glucose index (...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198410000-00013
更新日期:1984-10-01 00:00:00
abstract:OBJECTIVES:To evaluate knowledge translation after publication of the target temperature management 33°C versus 36°C after out-of-hospital cardiac arrest trial and associated patient outcomes. Our primary hypothesis was that target temperature management at 36°C was rapidly adopted in Australian and New Zealand ICUs. S...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/CCM.0000000000003339
更新日期:2018-11-01 00:00:00
abstract::Impedance respiratory monitoring is the standard technique for detecting apnea in infants. A miniature microphone/amplifier system has been used to sense breath sounds over the trachea in order to detect both central and obstructive apnea episodes in infants and children. The tracheal microphone has several advantages...
journal_title:Critical care medicine
pub_type: 杂志文章
doi:10.1097/00003246-198206000-00005
更新日期:1982-06-01 00:00:00