Pulse Oxymeter

STUDY DESIGN: A case report describing our experience with anterior revision surgery for a dislocated ProDisc artificial disc at the L4-5 level, 2.5 years after the initial surgery. OBJECTIVE: To highlight the difficulties and risks associated with the use of a repeat anterior approach for the revision of a ProDisc that has failed at the L4-5 level. SUMMARY OF BACKGROUND DATA: As the ProDisc has a central vertical keel, more intensive vascular mobilization is required to remove the dislocated implant during surgery than that required in patients who must undergo a revision of the SB-Charité disc...

Sexual activity is an important component of quality of life in patients suffering from chronic illnesses. To our knowledge, the effects of sexual activity on gas exchange in patients with respiratory failure have not been yet studied. To such an extent, we evaluated the oxygen saturation (SaO2), by a pulse oxymeter, during three different sexual performances in a 63-yr-old patient affected by chronic obstructive pulmonary disease (COPD) on long-term oxygen therapy (LTOT). The sexual performances were divided in four periods: basal, sex, 10 min after sex and relax...

BACKGROUND: The Mindray 9006 is a newly developed pulse oximeter. The performance of noninvasive monitoring of arterial oxygen saturation by pulse oximetry (SpO(2)) and pulse rate (PR) with the Mindray 9006 was evaluated. MATERIAL/METHODS: Twenty healthy volunteers participated in this study. The Mindray 9006 was evaluated according to guidelines including HS3-A, EP5-A, and EP9-A2 published by the CLSI, and ISO 9919. A blinded side-by-side comparison of the Mindray 9006 and the Masimo MS-3 oximeter was also performed...

AIM: When studying intestinal blood flow (IBF) using radiolabeled erythrocytes in the rabbit intestinal volvulus model, we also evaluated whether a pulse oxymeter (POX) could be used for the measurement of intestinal blood flow. METHODS: IBF was measured with radiolabeled erythrocytes and POX in the rabbit intestinal volvulus model. The study was performed on 3 groups: 1) baseline, 2) volvulus, 3) volvulus plus devolvulus. RESULTS: The POX and scintigraphic measurements were in correlation and showed that IBF stopped for 6 hours following volvulus...

Recommendations of the International Liaison Committee on Resuscitation (ILCOR) become updated every five years with changing evidence resulting in revised recommendations for clinical practice. New data exist concerning the adequate oxygen concentration to be used in the delivery room, the management of imminent meconium aspiration, ventilation strategies and the role of body temperature during and after resuscitation of preterm and term newborn infants. Only in some cases new evidence has led to clear-cut recommendations for or against specific interventions...

We summarize all original research in the field of respiratory intensive care medicine published in 2005 in Critical Care. Twenty-seven articles were grouped into the following categories and subcategories to facilitate rapid overview: mechanical ventilation (physiology, spontaneous breathing during mechanical ventilation, high frequency oscillatory ventilation, side effects of mechanical ventilation, sedation, and prone positioning); infection (pneumonia and sepsis); monitoring (ventilatory monitoring, pulmonary artery catheter and pulse oxymeter); and education (training and health outcome)...

OBJECTIVE: To discuss the utility of Sit-to-Stand Test (STST) compared to the 6min walking test (6MWT) for the evaluation of functional status in patients with chronic obstructive pulmonary disease (COPD). MATERIAL-METHOD: SUBJECTS: Fifty-three patients with stable COPD (mean forced expiratory volume in 1s (FEV(1)) 46+/-9% predicted, mean age 71+/-12 year) and 15 healthy individuals (mean FEV(1) 101+/-13% predicted and mean age 63+/-8) were included...

Though the mortality of tuberculosis in Japan has been extremely rapidly depressed from about 150 deaths per 100,000 in 1950 down to about 4 in 1985 during the period of a couple of decades after the World War II. However, the declining trend of the mortality and the morbidity seem to be leveling off now and the morbidity of the tuberculosis remain on the almost same level which are much higher than that of the developed countries. We have to make the progress in the field of the new diagnostic technique and the creation of the new drugs applying the most frontier science and the social system supporting the completion of the treatment for every patient...

We report an experience of anesthetic management of the ex-utero intrapartum treatment (EXIT) procedure performed in a fetus with congenital high airway obstruction syndrome (CHAOS) due to laryngeal atresia at 30 weeks' gestation. Anesthesia of the mother was induced with rapid sequence, and maintained with 3.5% sevoflurane in 100% oxygen and fentanyl before delivery. Two minimum alveolar concentration (MAC) sevoflurane provided excellent uterine relaxation without maternal hypotension. After hysterotomy, a sterile pulse oxymeter was placed on the fetus hand for monitoring fetal SpO2 and pulse rate, and a Doppler ultrasound transducer was applied to monitor fetal heart rate...

The objective of the study is to evaluate changes in finger pulse wave amplitude (PWA), as measured by photoplethysmography, and heart rate (HR), related to obstructive respiratory events and associated arousals during sleep. We analyzed 1,431 respiratory events in NREM sleep from 12 patients according to (1) the type of event (apnea, hypopnea, upper airway resistance episode) and (2) the duration of the associated EEG arousal (>10, 3-10, <3 s). Obstructive respiratory events provoked a relative bradycardia and vasodilation followed by HR increase and vasoconstriction...

PURPOSE: The aim of this study was to compare the muscle deoxygenation measured by near infrared spectroscopy in endurance athletes who presented or not with exercise-induced hypoxemia (EIH) during a maximal incremental test in normoxic conditions. METHODS: Nineteen male endurance sportsmen performed an incremental test on a cycle ergometer to determine maximal oxygen consumption (VO2max) and the corresponding power output (P(max)). Arterial O2 saturation (SaO2) was measured noninvasively with a pulse oxymeter at the earlobe to detect EIH, which was defined as a drop in SaO2 > 4% between rest and the end of the exercise...

In newborn and premature infants whose lung immaturity entails a limited capacity for O2 detoxification, the use of supplemental oxygen should be continuously and non-invasively monitored. Pulse oximetry and transcutaneous O2 monitoring are the systems most used in the NICU. Major limitations of pulse oximetry are motion artifact, sensitivity to excessive light, cutaneous hypoperfusion, hypothermia, venous congestion, arterio-venous shunting, strong skin pigmentation, anemia and high percentage of abnormal hemoglobin...

OBJECTIVE: The following questions were investigated: 1) the psychomotor development in newborns with pathological cardiotocographic recording (CTG), having been born spontaneously due to a normal oxygen saturation monitored by intrapartum pulse oxymetry (IFPO)(group I), 2) possible difference in development of children in group I in comparison with those with pathological CTG without IFPO monitoring delivered by cesarean section (group II), 3) possible differences in children in these two groups with signs of intrapartum hypoxia (groups I and II, respectively) from children delivered spontaneously during physiological delivery without signs of hypoxia (group III)...

The aim of the study is to establish the mean values of SpO2, during labour with symptoms of fetal distress and to find out when fetal hypoxia is expected to develop as well as unsatisfactory clinical status of the newborn. The study includes 62 women on labour at term with pathological decelerations from the fetal heart rate (FHR). SpO2 is monitored by means of fetal pulse oxymeter Nellcor N 400. Simultaneously FHR is monitored by means of cardiotocography. Fetal well-being is verified by pH u blood gas analysis from fetal scalp while the newborn well-being is proven by pH from umbilical artery and Apgar score at minute 1 and 5 after birth...

UNLABELLED: The setting up of the so-called "decrees on perinatal safety" on October 1998 has been associated with many difficulties which were apparently related to the lack of beds for intensive care units, special care units and neonatal medicine. This led to a national survey. OBJECTIVES: The aim of the survey was : (1) to collect the number of neonates requiring hospitalization in NICU and special care units over a 1-week period in metropolitan France and overseas departments and territories; (2) to assess the needs in equipments and care-givers...

We present an emergent surgical case of massive pulmonary embolism (MPE) that happened during orthopedic surgery. A 38-year-old man, who had bone fractures with his lumbar vertebra and ankle, underwent the internal fixation of the tibial bone with tourniquet under general anesthesia in our hospital. During this surgery, the pulse oxymeter showed a drop of arterial oxygen saturation suddenly. Immediately we installed a transesophageal echo (TEE) probe in the patient, and detected enlargement of the right ventricle and right atrial thrombus...

Leukotrienes, one of the mediators of inflammation in asthma, have a strong bronchoconstrictive effect. L-carnitine has been reported to influence respiratory functions. It has also been reported that L-carnitine inhibits leukotriene synthesis. To evaluate the effects of L-carnitine on oxygen saturation, urine leukotriene E4 levels and lung histopathology in a murine model of asthma, high IgE responder BALB/c mice (n = 24) were systemically sensitized to ovalbumin and chronically challenged with low particle mass concentrations of aerosolized ovalbumin, and then they were divided into 3 groups (study groups A, B, and C) each including eight mice...

The objective of this study is to report eight cases of arterial complication following anterior lumbar interbody fusion (ALIF) and to analyze the data in order to identify possible risk factors. The authors have encountered six cases of common iliac artery occlusion and two cases of acute vasospasm as a complication of ALIF using two different approaches to spine: hypogastric-midline-transperitoneal approach at one center and minimally invasive muscle-sparing retroperitoneal approach at the other. All cases involved surgery at the L4-L5 level...

OBJECTIVES: The objective of this study was to evaluate the addition of intravenous (IV) tezosentan to standard therapy for patients with pulmonary edema. BACKGROUND: Tezosentan is an IV nonselective endothelin (ET)-1 antagonist that yields favorable hemodynamic effects in patients with acute congestive heart failure (CHF). METHODS: Pulmonary edema was defined as acute CHF leading to respiratory failure, as evidenced by an oxygen saturation (SO(2)) <90% by pulse oxymeter despite oxygen treatment...

This study was designed to determine the effects of saline solution administered prior to endotracheal suctioning by nurses working in intensive care on oxygenation, heart rate and long-term pulmonary hygiene. The study was carried out on an experimental basis in the Intensive Care Unit of a university hospital in Turkey. A total of 20 patients were included, who were mechanically ventilated because of pulmonary or cardiovascular problems or trauma. Data were collected using a data form. Each patient was monitored for 5 minutes following suctioning with or without saline solution and findings of heart rate, SpO2, and blood gas measurements were recorded...