Biomedical subjects

Marsha L Cirgin Ellett

Publications and source records attributed to Marsha L Cirgin Ellett.

11 recordsLinked to original sources

PubMed2005

Predicting the insertion distance for placing gastric tubes.

Approximately 1 million enteral tubes are placed through the nose or mouth in adults and children in the United States annually. Previous studies found gastric tube placement errors to be common. A primary issue in ensuring safe and effective gastric feeding by tube is achieving optimal tube position on insertion. The purpose of this study is to use 24 variables to develop a clinical prediction rule for gastric tube insertion distance in adults, using the internal-nares-to-distal-lower esophageal-sphincter distance. A three-variable model using gender, weight, and nose-umbilicus-flat was selected. This new model, validated using nonparametric bootstrap cross-validation, correctly predicted gastric tube insertion distance 85.3% of the time. This new model is compared to two other methods, one evidence based and one commonly used in practice, and was found to be superior. Two nomograms, one for each gender, are drawn to make this new model easier to use.

Adolescent↗

PubMed2005

Gastric tube placement in young children.

In this study, the internal position of a nasogastric/orogastric tube was determined in 72 children, prior to an abdominal radiograph, by measuring CO2 and pH and bilirubin of tube aspirate. Fifteen of the 72 tubes (20.8%) were incorrectly placed on radiograph. Using the suggested adult cutoff of pH 5, pH of aspirate correctly predicted misplacement outside the stomach in 7/28 (25%) of children and correctly predicted correct placement in the stomach in 34 of 40 children (85%). Using the suggested adult cutoff of bilirubin > or = 5 mg/dL, bilirubin monitoring failed to identify either of two incorrectly placed tubes. In this study, using an algorithm of assuming stomach placement if the pH of aspirate is < or = 5 and obtaining an abdominal radiograph when either no aspirate is obtained or the pH is >5 would have resulted in 92% accuracy. Alternatively, obtaining an abdominal radiograph would result in nearly 100% accuracy.

Age Factors↗

PubMedDate not supplied

Ethical and legal issues of conducting nursing research via the Internet.

In February 2001, President Clinton's Information Technology Advisory Commission reported that information technology has the potential to advance biomedical research. As nursing research via the Internet expands, important ethical and legal issues need to be addressed. The purpose of this article is to report one researcher's journey in attempting to conduct ethical and legal nursing research via the Internet. The ethical and legal issues needing attention are discussed. Potential guidelines are provided for researchers wanting to use Internet technology.

Confidentiality↗

PubMedDate not supplied

Introduction to qualitative research.

The purpose of this article is to introduce practicing nurses to qualitative research. Qualitative research terms are defined, philosophy of science is briefly discussed, and several types of qualitative research studies are described. A hermeneutic phenomenological study of infant colic is described as an example of qualitative research useful in gastroenterology nursing. Finally, suggested criteria for evaluating a qualitative study are introduced.

Adult↗

PubMedDate not supplied

What is known about infant colic?

The ancient Greeks were the first to mention infant colic in recorded history; yet in 2002, the cause of infant colic is still unknown. Review of the infant colic literature suggests there are at least five possible explanations-cow's milk/soy protein allergy or intolerance; immature gastrointestinal system; immature central nervous system; difficult infant temperament; and parent-infant interaction problems consisting of either the transfer of parental anxiety to the infant or the inability of the infant to give clear cues about needs to the caregiver. It is likely the cause of infant colic is multifactorial because it has proven to be so elusive. One or more of the above explanations (or as yet an undiscovered explanation) is likely to play a role in the development of colic in a given infant. Determining the most probable explanation for each infant and then selecting interventions based on this explanation is likely to be more successful in preventing or decreasing the length or frequency of episodes than the various trial-and-error approaches to treatment currently recommended by healthcare providers. Infant colic is an important clinical problem that is amenable to nursing intervention.

Age of Onset↗

PubMedDate not supplied

Development and psychometric testing of the infant colic scale.

Novice researchers, when confronted with a clinical problem they want to study, are admonished by more experienced researchers to search the literature for an instrument that already has established reliability and validity, fits the problem of study, or that can be easily adapted. Sometimes, however, there is no such instrument available so the researcher has to develop a new instrument. The purpose of this article is to describe the steps required to develop and psychometrically test a new instrument. A new instrument, the Infant Colic Scale, is used as an example.

Colic↗

PubMedDate not supplied

Feasibility of using kangaroo (skin-to-skin) care with colicky infants.

Infant colic affects about 20% of all infants and the cause remains elusive. Healthcare providers typically view infant colic as a minor inconvenience that is harmless to the thriving infant and will go away with time; however, parents view caring for a colicky infant as a crisis situation. The purpose of this feasibility study conducted via the internet was to examine the feasibility of implementing kangaroo care at the beginning of colicky episodes. Mothers of colicky infants began the study by completing the on-line Infant Colic Scale and recording in a baseline state-of-arousal diary for 3 days. Next, they implemented kangaroo care at the beginning of as many episodes of colic as possible for 2 weeks while recording in a second state-of-arousal diary. Then, they stopped kangaroo care for 2 days while continuing to record in the second state-of-arousal diary, and lastly they were asked how kangaroo care worked for them.Seventy-five parents of colicky infants consented to participate in this study; however, only five of them actually did. Three of these completed only the baseline state-of-arousal diary, and two completed all parts of the study. This dropout rate showed that conducting such an intervention via the internet is not a feasible approach. Because kangaroo care for infants with colic is a promising intervention and because there are no other effective treatments for most of these infants, another feasibility study is warranted using different methods. Then if results are promising, a larger clinical trial should be conducted.

Adult↗

PubMedDate not supplied

What is known about methods of correctly placing gastric tubes in adults and children.

An abdominal radiograph is considered the "gold standard" for determining the position of flexible small-bore nasogastric/orogastric tubes. However, placement must be checked frequently while a tube is in place, and the summative radiation risk of multiple radiographs, as well as their expense, make the development of adequate bedside placement-locating methods imperative. Several methods of detecting tube placement have been investigated in adults, including: aspirating gastric contents and measuring the pH, bilirubin, pepsin, and trypsin levels; examining the visual characteristics of aspirate; placing the proximal end of the tube under water and observing for bubbles in synchrony with expirations; measuring the carbon dioxide level at the proximal end of the nasogastric/orogastric tube; auscultation for a gurgling sound over the epigastrium or left upper quadrant of the abdomen; and measuring the length from the nose/mouth to the proximal end of the tube. Many researchers have already concluded simple auscultation is not a reliable method to assess tube position because injection of air into the tracheobronchial tree or into the pleural space can produce a sound indistinguishable from that produced by injecting air into the gastrointestinal tract. In adults, only pH and bilirubin of aspirate have been shown both to reliably predict tube position and to have inexpensive simple bedside tests. In children, only pH of aspirate has been shown to be reliable. Research on gastric tube placement in children is relatively new because children are challenging to study in that they are considered a vulnerable population. This review of the literature includes results of both adult and pediatric studies. Tube placement error rates varied from 1.9% to 89.5% in adults and between 20.9% and 43.5% in children.

Adult↗

PubMedDate not supplied

Living with a colicky infant.

Infant colic is prolonged hard crying for no apparent reason in an otherwise healthy infant. The purpose of this study was to describe the parents' experiences of caring for their infants with colic. This qualitative study employed a multiple case study design using a descriptive approach through indepth interviews. Five of the interviews were conducted in person, and 10 were conducted via e-mail. One or both parents of 15 colicky infants were interviewed about their recent experiences of living with colicky infants. Three themes--crying, emotions (anger, frustration, worry, and guilt), and feelings (hopeless, helpless, isolated, and unloved) were identified. This study adds the rich description that was missing from the previous two qualitative studies of infant colic. It also adds fathers' perspectives of the experience of living with a colicky infant. Lastly, this study demonstrates that indepth interviews can be conducted via e-mail as well as in person.

Abdominal Pain↗

PubMedDate not supplied

Important facts about intestinal feeding tube placement.

Enteral feeding is desirable when the gastrointestinal tract is functional because it allows better use of nutrients, is safer, and is more cost-effective than parenteral nutrition. Feeding through a gastric tube, however, is often not feasible in severely ill adults and children because of gastric paresis leading to recurrent episodes of gastroesophageal reflux with the risk of subsequent aspiration. Feeding into the small intestine (duodenum or jejunum) through a nasointestinal tube, therefore, is preferred. Unfortunately, no method of enteral feeding is risk free. This literature review addresses the following 10 topics: (a) the reasons why nasointestinal tube feeding is better tolerated by some patients, (b) candidates for nasointestinal tube feeding, (c) options for selecting nasointestinal tubes, (d) recommended methods for predicting the distance to insert nasointestinal tubes, (e) recommended methods for placing nasointestinal tubes, (f) how promotility medications work and whether they facilitate nasointestinal tube placement, (g) nasointestinal tube placement error rate, (h) methods of determining the internal location of nasointestinal tubes, (i) complications associated with nasointestinal tube use, and (j) other pertinent issues surrounding feeding through nasointestinal tubes. The available research evidence is summarized and recommendations for future work are suggested.

Adult↗

PubMedDate not supplied

Examination of the effect of Dr. Brown's Natural Flow Baby Bottles on infant colic.

Thirty-six parents of colicky infants participated in this randomized, placebo-controlled clinical trial conducted via the Internet. Parents recorded a baseline state-of-arousal diary for 3 days using their usual feeding methods, and then they used six study-provided bottles for 2 weeks while recording a second state-of-arousal diary. Infants being fed with placebo bottles significantly spent more time crying (rho=.010) and fussing (rho=.002) on average than infants using Dr. Brown's Natural Flow Baby Bottles. Because these bottles decreased the time the infants spent crying and fussing, use of these bottles may be recommended for colicky infants who receive any bottle feedings.

Air↗