Abstract:
:The photoplethysmogram (PPG) is a noninvasive circulatory signal related to the pulsatile volume in tissue and is displayed by many pulse oximeters. The PPG is similar in appearance to the invasive arterial waveform, but is noninvasive and ubiquitous in hospitals. There is increasing interest in seeking circulatory information from the PPG and developing techniques for a wide variety of novel applications. This article addresses the basic physics of photoplethysmography, physiologic principles behind pulse oximetry operation, and recent technological advances in the usefulness of the PPG waveform to assess microcirculation and intravascular fluid volume monitoring during intensive care.
journal_name
Clin Perinatoljournal_title
Clinics in perinatologyauthors
Sahni Rdoi
10.1016/j.clp.2012.06.012subject
Has Abstractpub_date
2012-09-01 00:00:00pages
573-83issue
3eissn
0095-5108issn
1557-9840pii
S0095-5108(12)00062-0journal_volume
39pub_type
杂志文章,评审abstract::This chapter describes the utility of event-related potential recordings in the assessment of auditory and visual system integrity in the newborn infant. A battery of electrophysiologic tests is described that permits the evaluation of sequential levels of processing within these sensory system. ...
journal_title:Clinics in perinatology
pub_type: 杂志文章
doi:
更新日期:1985-02-01 00:00:00
abstract::Necrotizing enterocolitis (NEC) is a multifactorial disorder that primarily affects premature infants. Human milk compared with formula reduces the incidence of NEC. Feeding practices do not increase the incidence of NEC in preterm infants. There is no evidence supporting continuous versus intermittent tube feedings i...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2012.12.001
更新日期:2013-03-01 00:00:00
abstract::Administrative data research on maternal racial disparities supports 2 broad clinical inferences. First, failure to rescue in terms of both death and severe maternal morbidity likely accounts for a significant proportion of maternal disparities. Second, risk for adverse outcomes by race is generally differential with ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2020.08.008
更新日期:2020-12-01 00:00:00
abstract::In patients with chronic renal disease, all advice and decisions must take into account the balance between pregnancy outcome and the long-term impact that pregnancy might have on the disease. To help the clinician address these concerns, the authors focus on the renal changes in normal pregnancy, the problems of chro...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1985-10-01 00:00:00
abstract::The final common pathway to death in all of us is an arrhythmia, yet we still know far too little about the contribution of conduction abnormalities and arrhythmias to the compromised states of the human fetus. At no other time in the human life cycle is the human being at more risk of unexplained and unexpected death...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2007.10.002
更新日期:2007-12-01 00:00:00
abstract::For more than 100 years, three principles have guided the treatment of neonatal asphyxia: maintain body heat, free air passages of obstructions, and stimulate respiration by supplying air to the lungs for oxygenation of the blood. This article addresses the question of which gas, air or 100% oxygen, is best supplied t...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2005.11.003
更新日期:2006-03-01 00:00:00
abstract::Historically, researchers studying the field of sleep have been divided into two main groups. The first group of sleep studies was based on behaviors and behavioral sleep. The second group of researchers based their studies on electroencephalogram EEG patterns and changes. With technologic advancements, a third group ...
journal_title:Clinics in perinatology
pub_type: 杂志文章
doi:10.1016/j.clp.2006.06.009
更新日期:2006-09-01 00:00:00
abstract::Severe combined immunodeficiency (SCID) encompasses a group of genetic defects. T cell development is universally affected and has alteration of B and/or NK cells. We present the case of a 5-day-old boy with combined heterozygous frame shift (c.256_257del, p.(Lys86Valfs*33)) and missense (c.1186C>T, p.(Arg396Cys)) var...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2019.09.004
更新日期:2020-03-01 00:00:00
abstract::Cesarean delivery as a result of maternal request is increasingly popular, leading to important ethical questions. One of the challenging issues is balancing respect for the autonomy of a pregnant woman with concerns of beneficence and nonmaleficence for her and the fetus. The perceived benefit of cesarean section is ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2008.03.011
更新日期:2008-06-01 00:00:00
abstract::Neurologically impaired infants have immature, damaged, or abnormally developed nervous systems that may cause abnormalities of sucking and swallowing, among other problems. Sucking abnormalities usually present as absence of the sucking response, weakness or incoordination of sucking and swallowing, or some combinati...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1987-03-01 00:00:00
abstract::Antimicrobial-resistant pathogens are of increasing concern in the neonatal intensive care unit population. A myriad of resistance mechanisms exist in microorganisms, and management can be complex because broad-spectrum antibiotics are increasingly needed. Control and prevention of antibiotic-resistant organisms (AROs...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2010.06.004
更新日期:2010-09-01 00:00:00
abstract::We have learned from prenatal diagnosis that there is a wide spectrum of clinical severity for fetuses that have a lung mass. Accurate prognostic information is necessary for providing appropriate management and parental counseling. If an associated life-threatening anomaly is present or if the mother is ill with the ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0095-5108(03)00047-2
更新日期:2003-09-01 00:00:00
abstract::The development of the flow-directed pulmonary artery catheter in the early 1970s moved invasive monitoring from the laboratory to the patient's bedside. Its current use in obstetrics is directed toward definition of certain pathophysiologic states unique to pregnancy and toward diagnosis and management of critically ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1986-12-01 00:00:00
abstract::This article discusses the background, methodology, previous clinical studies, and the clinical role and limitations of the noninvasive Doppler technique in the assessment of the cerebral circulation of the newborn infant. ...
journal_title:Clinics in perinatology
pub_type: 杂志文章
doi:
更新日期:1985-02-01 00:00:00
abstract::Scientific study of prenatal drug exposure and child outcome began a period of substantial growth in the 1970s with a focus on exposure to opiates. By the mid-1980s, attention shifted to cocaine. Most of this research has involved cohort studies in which groups of children are followed up longitudinally from birth. Si...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1999-03-01 00:00:00
abstract::Phototherapy is now the preferred method of treatment for neonatal hyperbilirubinemia by virtue of its noninvasive nature and its relative freedom from major complications. It is also convenient, easy to use, and inexpensive in terms of personnel, equipment, and disposals. Long-term experience with phototherapy has de...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1991-09-01 00:00:00
abstract::The phenomenal developments in molecular genetics and technological refinements which have occurred over the past decade are revolutionizing the area of prenatal genetics. State-of-the-art care commences with comprehensive preconceptional counseling. Prenatal diagnosis is now feasible from the moment of conception onw...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1994-12-01 00:00:00
abstract::Most allegations in obstetric lawsuits against obstetrician-gynecologists relate in some manner to the management of labor and delivery; few solely involve perceived flaws in prenatal or postpartum care. Although many of these cases accuse the defendant of not having properly monitored the fetus during labor for signs...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2007.03.011
更新日期:2007-06-01 00:00:00
abstract::Gastrointestinal endoscopy permits direct observation of the alimentary tract, acquisition of mucosal tissue for histopathologic examination, and other diagnostic and therapeutic maneuvers. Endoscopes of appropriate size for many neonates and an expanding array of compatible tools and accessories have broadened what i...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2020.02.012
更新日期:2020-06-01 00:00:00
abstract::For adults and pediatric age patients, high-dose intravenous epinephrine was recommended if standard-dose epinephrine failed to achieve return of spontaneous circulation. More recent trials suggest that high-dose epinephrine is not beneficial and may result in increased harm. There are no randomized clinical studies o...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2005.11.016
更新日期:2006-03-01 00:00:00
abstract::History has always been a series of pendulum swings, and there is perhaps no better example in obstetrics than that of vaginal birth after cesarean. Vaginal birth after cesarean (VBAC) rates rose steadily in the early 1990s. However, VBAC rates have declined dramatically over recent years, while the cesarean delivery ...
journal_title:Clinics in perinatology
pub_type: 杂志文章
doi:10.1016/j.clp.2011.03.005
更新日期:2011-06-01 00:00:00
abstract::New knowledge has accumulated in recent years making it prudent to ask questions regarding current oxygenation policies and guidelines. Because new-born resuscitation affects so many individuals, and because resuscitation procedures may have dramatic consequences on infant and child health, intensified discussion and ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2004.04.021
更新日期:2004-09-01 00:00:00
abstract::Complex biochemical consequences are the result of a series of secondary biochemical changes caused by oxygen depletion. Hypoxia in the fetus and neonate results in decreased GI blood flow, especially to the GI mucosa. Although severe O2 deprivation cannot be entirely compensated for, an increase in tissue O2 extracti...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1986-03-01 00:00:00
abstract::Familial hypothyroidism results from both thyroidal and extrathyroidal dysfunction. Specific intrathyroidal abnormalities in thyroid hormone synthesis causing goitrous hypothyroidism are iodide trap defect, organification defect, "coupling" defect, iodoprotein defect, and dehalogenase defect. The diagnostic studies fo...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1976-03-01 00:00:00
abstract::Expertise in neonatal resuscitation is essential for all hospital personnel involved in the care of newborn infants. The guidelines to resuscitation reviewed here have been established by the American Academy of Pediatrics and the American Heart Association and have resulted in significantly improved training and expe...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1999-09-01 00:00:00
abstract::When cystic hygroma is detected antenatally, the prognosis is usually poor, and intrauterine or neonatal death are common. This seems especially true for Turner syndrome (the largest etiologic group associated with cystic hygroma) and the lethal multiple pterygium syndromes. However, some fetuses with Turner syndrome,...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:
更新日期:1990-09-01 00:00:00
abstract::The incidence of neonatal abstinence syndrome owing to prenatal opioid exposure has grown rapidly in recent decades and it disproportionately affects rural, non-white, and public insurance-dependent populations. Treatment consists of pharmacologic and nonpharmacologic interventions with wide variability in approaches ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2019.08.012
更新日期:2019-12-01 00:00:00
abstract::Decades of research have led to the understanding of neonatal pulmonary physiology and have influenced the clinical care that neonatologists provide to the sick newborn. Advances in microprocessor technology have allowed for clinical access of the research-based measurements of neonatal pulmonary functions. These eval...
journal_title:Clinics in perinatology
pub_type: 杂志文章
doi:10.1016/s0095-5108(05)70102-0
更新日期:2001-09-01 00:00:00
abstract::Despite the fact that hypoglycemia is an extremely common disorder of the newborn, consensus has been difficult to reach regarding definition, diagnosis, outcome, and treatment. With improved neuroradiologic techniques, such as MRI and PET scanning becoming increasingly available, studies to determine the correlation ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/s0095-5108(02)00054-4
更新日期:2002-12-01 00:00:00
abstract::Postpartum hemorrhage is an obstetric emergency that represents a major cause of maternal morbidity and mortality. With the recent rise in the cesarean delivery rate, prompt recognition and proper management at the time of cesarean delivery are becoming increasingly important for providers of obstetrics. Preparedness ...
journal_title:Clinics in perinatology
pub_type: 杂志文章,评审
doi:10.1016/j.clp.2008.07.007
更新日期:2008-09-01 00:00:00