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use of Svo2 weaning ventilation

Ru Lin, Lin-hua Tan, Ze-wei Zhang, Mei-yue Sun, Li-zhong Du
OBJECTIVE: To summarize the experience of extracorporeal membrane oxygenation (ECMO) to rescue a neonate with severe low cardiac output syndrome following open heart surgery. METHODS: The patient was a male, 2 d, 2.8 kg, G3P2 full-term neonate with gestational age 40 weeks, born by Cesarean-section with Apgar score of 10 at 1 min. He was admitted due to severe dyspnea with oxygen desaturation and heart murmur on the second day after birth. Physical examination showed clear consciousness, cyanosis, dyspnea, RR 70 bpm and a grade II/6 heart murmur...
January 2008: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
Hiroshi Kanamaru, Kensuke Karasawa, Osamu Abe, Michio Miyashita, Mamoru Ayusawa, Naokata Sumitomo, Tomoo Okada, Kensuke Harada, Hideo Mugishima
BACKGROUND: The purpose of this study was to determine the appropriate recommendations for weaning off cardiopulmonary support (CPS) in children with fulminant myocarditis. METHODS AND RESULTS: Four consecutive patients diagnosed with fulminant myocarditis who were treated with CPS were enrolled (mean age: 9 years). The relationships between timing of weaning from CPS and various factors, including bleeding episodes, platelet count, serum concentration of the MB isoform of creatine kinase (CK-MB), echocardiographic findings, and the mixed venous blood oxygen saturation (SvO2), were retrospectively analyzed...
October 2007: Circulation Journal: Official Journal of the Japanese Circulation Society
Shyang-Yun Pamela K Shiao
PURPOSE: To assess oxygen consumption VO2) with arterial and venous oxygen saturation SaO2 and SvO2) from blood measurements for continuous monitoring of mechanically ventilated preterm neonates. METHOD: Twelve preterm neonates with gestational ages ranging from 27 to 34 weeks at birth, who were mechanically ventilated and had umbilical arterial and venous lines in place, were investigated. Analyses were performed with blood samples and continuous monitoring of VO2 from SaO2 and SvO2 measurements...
April 2006: Journal of Perinatal & Neonatal Nursing
Anis S Baraka, Marie T Aouad, Maya I Jalbout, Roland N Kaddoum, Mohammad F Khatib, Sania T Haroun-Bizri
This prospective study included 32 patients undergoing cardiopulmonary bypass (CPB) for elective coronary artery bypass grafting correlates the respiratory end-tidal CO2 (ETCO2) during partial separation from CPB with cardiac output (CO) following weaning from CPB. After induction of general anesthesia, a pulmonary artery catheter was inserted for measurement of cardiac output by thermodilution. Patients were monitored using a 5-lead ECG, pulse oximeter, invasive blood pressure monitoring, rectal temperature probe, and end-tidal capnography...
September 2004: Journal of Extra-corporeal Technology
A J Michaels, R J Schriener, S Kolla, S S Awad, P B Rich, C Reickert, J Younger, R B Hirschl, R H Bartlett
OBJECTIVE: To present a series of 30 adult trauma patients who received extracorporeal life support (ECLS) for pulmonary failure and to retrospectively review variables related to their outcome. METHODS: In a Level I trauma center between 1989 and 1997, ECLS with continuous heparin anticoagulation was instituted in 30 injured patients older than 15 years. Indication was for an estimated mortality risk greater than 80%, defined by a PaO2: FIO2 ratio less than 100 on 100% FIO2, despite pressure-mode inverse ratio ventilation, optimal positive end-expiratory pressure, reasonable diuresis, transfusion, and prone positioning...
April 1999: Journal of Trauma
C Vedrinne, O Bastien, R De Varax, P Blanc, P G Durand, B Du Grès, H Bouvier, C Saroul, J J Lehot
The main goal of this prospective study was to identify among cardiac surgery patients, usually monitored through a standard pulmonary artery catheter (PAC), those in whom a fiberoptic catheter oximeter to measure oxygen saturation in mixed venous blood (SVO2 PAC) would be most useful. Data from 286 patients who underwent coronary artery bypass graft (50%) or valvular surgery were recorded, including ASA physical status, New York Heart Association (NYHA) classification, and Parsonnet score (PS). Hemodynamic events and SVO2 changes were collected intra- and postoperatively until weaning from mechanical ventilation...
July 1997: Anesthesia and Analgesia
C L Cason, S K DeSalvo, W T Ray
OBJECTIVE: To evaluate changes in oxygenation as measured by pulse oximetry (SpO2) and saturated venous oxygenation (SvO2) during weaning from mechanical ventilator support. DESIGN: Exploratory, pilot study. SETTING: Cardiovascular intensive care unit in a private 691-bed acute care medical center in the South. SUBJECTS: Ten adults between 50 and 76 years of age who had uncomplicated coronary artery bypass graft surgery...
September 1994: Heart & Lung: the Journal of Critical Care
M L Noll, J F Byers
OBJECTIVES: To determine whether combined use of the parameters of mixed venous oxygen saturation, arterial oxygen saturation obtained by pulse oximetry (Spo2), and vital signs correlated with arterial blood gas variables (ABGs) better than each individual variable during weaning of postoperative cardiac surgery patients from mechanical ventilation; and to evaluate the relationship of derived parameters: oxygen extraction index and ventilation/perfusion index (VQI), and ABGs. DESIGN: Secondary analysis of previous correlational study...
May 1995: Heart & Lung: the Journal of Critical Care
C I Richless
It is increasingly evident that there is little data available to compare the use of various modes of mechanical ventilation or to assess their application. It is difficult to compare the new modes of mechanical ventilation with the conventional modes because of a similar lack of clinical data. The challenge for future research in the area of ventilator technology is to generate controlled clinical studies to support its application. With the increased impact of financial constraints on healthcare, research will also need to examine the economic issues related to the application of newer modes of mechanical ventilation...
March 1991: Critical Care Nurse
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