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1.
Eur J Pediatr ; 183(5): 2325-2332, 2024 May.
Article in English | MEDLINE | ID: mdl-38427039

ABSTRACT

PURPOSE: Gastric residual measurement is routinely performed in premature infants prior to feeding despite a lack of evidence of benefit. We aimed to evaluate if the exclusion of routine gastric residual measurement and evaluation has an impact on the time taken to achieve full enteral feeding in preterm neonates. METHODS: International multi-centre randomised controlled trial. Clinically stable, appropriate for gestational age infants between 26+0 and 30+6 weeks of gestation and less than 1.5 kg birth weight were eligible. Infants were randomised to the intervention arm (no monitoring of gastric aspirates) or control arm (routine care). Primary outcome was the achievement of enteral feeds of 100 ml/kg/day by day 5 of life. RESULTS: Ninety-five infants were recruited with 88 included in an intention-to-treat analysis, 45 in the intervention arm and 43 in the control arm. There was no imbalance in baseline characteristics. Thirty-three (73.3%) infants in the intervention group and 32 infants (74.4%) in the control group reached full feeds by day 5 of life (p = 0.91) with no difference in median time to full feeds. There were no statistically significant differences in survival or the major morbidities of prematurity. CONCLUSION:  There was no difference in time to attainment of enteral feeds of 100 ml/kg/day in premature infants when gastric residuals were not monitored. In the absence of a clinical benefit to routine monitoring, it may be appropriate to discontinue this practice and only monitor residuals when clinical concern of feeding intolerance or gastrointestinal pathology arises in this group of patients. TRIAL REGISTRATION:  NCT03111329- https://clinicaltrials.gov/ . Registered 06/04/2017. WHAT IS KNOWN: • Previous randomized trials have shown little benefit to the performance of routine assessment of gastric residuals in preterm infants. Despite this, they continue to be performed due to concerns from observational data regarding development of NEC. Meta-analysis to date has failed to answer the question regarding NEC. WHAT IS NEW: • In very low birth weight infants who are fed using modern feeding practice of faster feed advancement, to minimize use of central access and parenteral nutrition, exclusion of routine checks of gastric residuals did not increase the proportion of infants reaching full enteral feeds by day 5. No harm was seen when residual checks were not performed. • In the absence of a clinical benefit to the routine performance of gastric residuals in very low birth weight infants, it may be appropriate to discontinue their use and instead check residuals when clinical concern of pathology arises.


Subject(s)
Enteral Nutrition , Infant, Premature , Female , Humans , Infant, Newborn , Male , Enteral Nutrition/methods , Gestational Age , Single-Blind Method , Time Factors
2.
Clin Exp Immunol ; 205(1): 89-97, 2021 07.
Article in English | MEDLINE | ID: mdl-33768526

ABSTRACT

Neonatal encephalopathy (NE) is characterized by altered neurological function in term infants and inflammation plays an important pathophysiological role. Inflammatory cytokines interleukin (IL)-1ß, IL-1ra and IL-18 are activated by the nucleotide-binding and oligomerization domain (NOD)-, leucine-rich repeat domain (LRR)- and NOD-like receptor protein 3 (NLRP3) inflammasome; furthermore, we aimed to examine the role of the inflammasome multiprotein complex involved in proinflammatory responses from the newborn period to childhood in NE. Cytokine concentrations were measured by multiplex enzyme-linked immunosorbent assay (ELISA) in neonates and children with NE in the absence or presence of lipopolysaccharide (LPS) endotoxin. We then investigated expression of the NLRP3 inflammasome genes, NLRP3, IL-1ß and ASC by polymerase chain reaction (PCR). Serum samples from 40 NE patients at days 1 and 3 of the first week of life and in 37 patients at age 4-7 years were analysed. An increase in serum IL-1ra and IL-18 in neonates with NE on days 1 and 3 was observed compared to neonatal controls. IL-1ra in NE was decreased to normal levels at school age, whereas serum IL-18 in NE was even higher at school age compared to school age controls and NE in the first week of life. Percentage of LPS response was higher in newborns compared to school-age NE. NLRP3 and IL-1ß gene expression were up-regulated in the presence of LPS in NE neonates and NLRP3 gene expression remained up-regulated at school age in NE patients compared to controls. Increased inflammasome activation in the first day of life in NE persists in childhood, and may increase the window for therapeutic intervention.


Subject(s)
Brain Diseases/immunology , Inflammasomes/immunology , Inflammation/immunology , Child , Child, Preschool , Cytokines/immunology , Female , Humans , Infant, Newborn , Interleukin-1beta/immunology , Lipopolysaccharides/immunology , Male , NLR Family, Pyrin Domain-Containing 3 Protein/immunology , Up-Regulation/immunology
3.
Eur J Clin Nutr ; 74(12): 1661-1667, 2020 12.
Article in English | MEDLINE | ID: mdl-32371987

ABSTRACT

BACKGROUND: Early discontinuation of total parenteral nutrition (TPN) at 100 ml/kg/day of enteral feeds, compared with 140 ml/kg/day, led to significant delay in time to regain the birth weight in very low birth weight infants (birth weight < 1500 g, VLBW). Our aim was to compare the growth of infants in relation with timing of TPN discontinuation up to 2 years corrected gestational age (CGA). METHODS: Posttrial follow-up study using review of paper medical records. Participants of the randomized controlled trial studying effect of early parenteral nutrition discontinuation on time to regain birth weight in VLBW infants were included. Growth parameters inclusive of weight, length, and occipital-frontal circumference (OFC) were collected. Z-scores were calculated at five predefined time points-birth, 0-11 weeks CGA, 12-35 weeks CGA, 36-60 weeks CGA, and 61-96 weeks CGA and compared for control and intervention groups. RESULTS: Regarding weight, we found lower mean Z-score in the intervention group between 0 and 11 weeks CGA, with larger difference in extremely low birth weight infants (birth weight < 1000 g, ELBW), but this did not reach the statistical significance. Regarding length, the same difference, slightly delayed to 35 weeks CGA was observed and reached statistical significance for ELBW infants between 12 and 35 weeks CGA. There was no difference in OFC mean Z-scores at any timepoint. CONCLUSIONS: The discontinuation of TPN at 100 ml/kg/day showed significantly lower Z-score for length in ELBW infants between 12 and 35 weeks CGA. There were no differences in Z-scores by 2 years CGA.


Subject(s)
Infant, Premature , Infant, Very Low Birth Weight , Catheters , Follow-Up Studies , Humans , Infant , Infant, Newborn , Parenteral Nutrition
5.
Acta Chir Plast ; 59(3-4): 142-148, 2018.
Article in English | MEDLINE | ID: mdl-29651852

ABSTRACT

Dupuytren's disease (fibromatosis of the palmar fascia, benign neoplastic fibromatosis, Dupuytren's contracture) is a disease characterized by growth and successive contracture of single parts of the palmar aponeurosis. This condition is known and has been treated for several centuries. In the advanced stages of the disease, it leads to significant limitation of hand function, resulting in reduced quality of life of the patient. Dupuytren's disease (DD) is a life-long disease with a variable course and a heterogeneous clinical presentation. Therapy focuses on the clinical manifestations of the disease as well as on reduction of the functional limitation of the hand caused by the disease. In addition to conservative and surgical procedures, there are also some mini-invasive methods available. Treatment should be reserved for centres and experienced surgeons specialized in hand surgery.


Subject(s)
Dupuytren Contracture/therapy , Hand Deformities, Acquired/therapy , Humans , Quality of Life
6.
Acta Chir Plast ; 59(3-4): 149-155, 2018.
Article in English | MEDLINE | ID: mdl-29651855

ABSTRACT

Malignant melanoma is a serious disease, the incidence of which rises. Since the most important treatment method is sufficient wide skin and subcutaneous tissue excision, plastic surgeon is often the only specialist who is able to close the resulting defect. This paper deals with recommendations and treatment options for malignant melanoma from the point of a plastic surgeon. The primary width of excised safety rim of healthy tissue with regards to the depth of melanoma invasion differs. Safety margin is 0.5 cm for melanoma in situ, 1 cm in Breslow up to 2 mm and 2 cm in Breslow over 2 mm. Furthermore, there is indication for sentinel lymph node biopsy, which should be performed in melanoma with Breslow over 1 mm, and in risky melanoma in Breslow above 0.75 mm. Every patient with stage IIB malignant melanoma and above according to TNM classification should undergo adjuvant therapy in a specialized centre. Ideal condition for the patient is a permanent and close cooperation between a dermatologist, oncologist and plastic surgeon, who supplement each other in diagnostics, therapy and follow up of the patients.


Subject(s)
Melanoma/surgery , Skin Neoplasms/surgery , Carcinoma in Situ/pathology , Carcinoma in Situ/therapy , Combined Modality Therapy , Humans , Margins of Excision , Melanoma/pathology , Neoplasm Invasiveness , Neoplasm Staging , Sentinel Lymph Node Biopsy , Skin Neoplasms/pathology
7.
Clin Anat ; 30(7): 963-973, 2017 Oct.
Article in English | MEDLINE | ID: mdl-28791730

ABSTRACT

We offer a complete systemic review of the anatomy of arteries of the thumb, including their sources in the first web space. Eleven studies were selected from the PubMed, Medline, Embase, Scopus and Ovid databases. Data about each artery of the thumb were obtained; in particular, the incidence and dominance of each of these arteries were calculated. The ulnopalmar digital artery of the thumb (UPDAT) was found in 99.63%, the radiopalmar digital artery of the thumb (RPDAT) in 99.26%, the ulnodorsal digital artery of the thumb (UDDAT) in 83.39%, and the radiodorsal digital artery of the thumb (RDDAT) in 70.38%. The sources for the thumb arteries are the first palmar metacarpal artery (for UPDAT in 63.15%, for RPDAT in 78.88%, for UDDAT in 56.95% and for RDDAT in 41.48%), the first dorsal metacarpal artery (for UPDAT in 20.54%, for RPDAT 2.53%, for UDDAT in 20.62%, and for RDDAT in 4.81%) and the superficial palmar arch, either complete or incomplete (for UPDAT in 25.57%, for RPDAT in 23.04%, for UDDAT in 0%, and for RDDAT in 5.19%). The dominant source could be identified in 88.2% of cases: the first palmar metacarpal artery (66.2%), the first dorsal metacarpal artery (15.5%) and the superficial palmar arch, complete or incomplete (8.2%). Four arteries usually supply the thumb. Any artery in the first web space can be a source for the thumb arteries. We propose a new classification of the arteries of the hand, dividing them into three systems (superficial palmar, deep palmar and dorsal system), and suggest that the term "princeps pollicis artery" be reconsidered and systemic anatomical terms of the thumb arteries preferred. Clin. Anat. 30:963-973, 2017. ©2017 Wiley-Liss, Inc.


Subject(s)
Arteries/anatomy & histology , Thumb/blood supply , Hand/blood supply , Humans
8.
Early Hum Dev ; 104: 45-49, 2017 01.
Article in English | MEDLINE | ID: mdl-28042972

ABSTRACT

BACKGROUND: Treatment of the patent ductus arteriosus (PDA) in the preterm infant remains contentious. There are numerous options of the PDA management from early targeted treatment, late (symptomatic) treatment to no treatment at all. AIMS: To evaluate a three different PDA management approaches in very low birth weight (VLBW) infants. STUDY DESIGN: A retrospective observational time series study of three cohorts of VLBW infants born between 2004 and 2011. SUBJECTS: Infants in Symptomatic Treatment Group (STG) were echocardiographically evaluated when clinical signs suggestive of a PDA were present and treated if a haemodynamically significant PDA was confirmed. Early Targeted Group (ETG) underwent echocardiography within the first 48h and infants received ibuprofen if a large PDA was present. Conservative Treatment Group (CTG) was screened by echocardiography on day seven of life; patients with PDA were managed with increased positive end expiratory pressure and fluid restriction as a first line intervention. OUTCOMES: The primary outcome was medical and surgical treatment in the three time periods. Secondary outcomes included mortality, severe periventricular and intraventricular haemorrhage, respiratory distress syndrome and chronic lung disease. RESULTS: There were 138 infants diagnosed with PDA; 52 infants in STG, 52 infants in ETG and 34 infants in CTG. Ibuprofen therapy and ligation were less frequent in CTG. There was significantly decreased incidence of chronic lung disease in CTG compared to STG (18% vs. 51%; p=0.003) and to ETG (18% vs. 46%; p=0.02). There was no difference in the other short term outcomes. CONCLUSION: Conservative treatment of persistent ductus arteriosus in VLBW infants is a feasible option and future randomized trials of conservative management are warranted.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Ductus Arteriosus, Patent/drug therapy , Ibuprofen/therapeutic use , Infant, Very Low Birth Weight/physiology , Anti-Inflammatory Agents, Non-Steroidal/administration & dosage , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Ductus Arteriosus, Patent/diagnostic imaging , Female , Humans , Ibuprofen/administration & dosage , Ibuprofen/adverse effects , Infant, Newborn , Male
9.
Acta Chir Plast ; 59(2): 85-91, 2017.
Article in English | MEDLINE | ID: mdl-29446308

ABSTRACT

Even though reconstructive surgery of the nerves underwent significant progress due to experimental and clinical research over the past 40 years, injuries to the peripheral nerves still remain a great challenge for microsurgery. Literature results of these procedures are often evaluated as very good but the final result is often characterized by an achievement of only a useful and not full function, which is rather rare. It is not only a simple suture; the success is also based on functional regeneration and interconnection of the nerve fibres. This is limited by correct surgical technique, the age of the patient, delay from the time of injury and the mechanism or localization of the injury. Some injuries even now remain untreatable (such as the most severe brachial plexus injuries or long traction injuries of the peroneal nerve). Apart from standard neurolysis and epi- or perineural suture with or without nerve grafts, distal nerve transfers (in case of proximal injuries) and end-to-side neurorrhaphy (mainly in trauma of sensitive nerves) have recently been frequently used. The future is however based on influence of nerve regeneration at the cellular level using substances with growth potential. The main prerequisite of successful surgery is however early indication of surgical revision in a specialized centre.


Subject(s)
Brachial Plexus , Nerve Transfer , Peripheral Nerve Injuries , Plastic Surgery Procedures , Humans , Neurosurgical Procedures , Peripheral Nerve Injuries/surgery
10.
Acta Paediatr ; 106(1): 30-33, 2017 Jan.
Article in English | MEDLINE | ID: mdl-27637413

ABSTRACT

AIM: To evaluate the reported use of data monitoring committees (DMCs), the frequency of interim analysis, prespecified stopping rules and early trial termination in neonatal randomised controlled trials (RCTs). METHODS: We reviewed neonatal RCTs published in four high-impact general medical journals, specifically looking at safety issues including documented involvement of a DMC, stated interim analysis, stopping rules and early trial termination. We searched all journal issues over an 11-year period (2003-2013) and recorded predefined parameters on each item for RCTs meeting inclusion criteria. RESULTS: Seventy neonatal trials were identified in four general medical journals: Lancet, New England Journal of Medicine (NEJM), British Medical Journal and Journal of American Medical Association. A total of 43 (61.4%) studies reported the presence of a DMC, 36 (51.4%) explicitly mentioned interim analysis, stopping rules were reported in 15 (21.4%) RCTs and seven (10%) trials were terminated early. The NEJM most frequently reported these parameters compared to the other three journals reviewed. CONCLUSION: While the majority of neonatal RCTs report on DMC involvement and interim analysis, there is still scope for improvement. Clear documentation of safety-related issues should be a central component of reporting in neonatal trials involving newborn infants.


Subject(s)
Clinical Trials Data Monitoring Committees/statistics & numerical data , Early Termination of Clinical Trials/standards , Randomized Controlled Trials as Topic/standards , Research Design/statistics & numerical data , Bibliometrics , Humans , Infant, Newborn , Patient Safety/standards , Periodicals as Topic/statistics & numerical data , Randomized Controlled Trials as Topic/methods , Randomized Controlled Trials as Topic/statistics & numerical data , Research Design/standards
11.
J Obstet Gynaecol ; 36(1): 19-23, 2016.
Article in English | MEDLINE | ID: mdl-26214050

ABSTRACT

Neural tube defects (NTDs) carry a heavy burden for affected individuals and their family. Physical and neurological outcome measures may help in counselling couples. The aim of this audit was to review all cases of NTDs seen at a tertiary referral foetal medicine unit. Cases were identified from obstetric, neonatal and neurosurgical records. Thirty-six cases of NTDs were identified. Of the 36, 25% (n = 9, one trisomy 18) opted for termination of pregnancy abroad. Of the remaining 27, 19% (n = 5) died in the antepartum period. 81% (n = 22) were liveborn with four neonatal deaths (one trisomy 18). Of 15 cases, 14 had neurosurgical repair within a median time of 3 days and 9 of these also had a ventriculoperitoneal shunt inserted. Antenatal ultrasound accurately diagnosed lesion level in the majority of cases. The survival rate for babies diagnosed with non-lethal neural tubes defects is high when multidisciplinary care is initiated early.


Subject(s)
Neural Tube Defects/diagnostic imaging , Neural Tube Defects/surgery , Abortion, Eugenic , Female , Fetal Death , Humans , Infant, Newborn , Ireland , Live Birth , Perinatal Death , Pregnancy , Tertiary Care Centers , Ultrasonography, Prenatal , Ventriculoperitoneal Shunt
12.
J Perinatol ; 35(4): 304-6, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25813677

ABSTRACT

The available evidence does not support the routine use of inhaled nitric oxide (iNO) in the care of premature infants. We present a case series of 22 preterm infants born after prolonged preterm premature rupture of membranes and oligohydramnios with respiratory failure. Oxygenation index decreased significantly after commencement of iNO.


Subject(s)
Fetal Membranes, Premature Rupture/therapy , Infant, Premature , Nitric Oxide/administration & dosage , Respiratory Insufficiency/therapy , Vasodilator Agents/administration & dosage , Administration, Inhalation , Bronchopulmonary Dysplasia , Female , Humans , Infant, Newborn , Leukomalacia, Periventricular , Male
13.
Acta Paediatr ; 104(1): e1-6, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25163391

ABSTRACT

AIM: Few studies have focused on cardiac ventricular diastolic function in preterm neonates in the immediate post-natal period. This study evaluated Doppler-derived parameters of diastolic ventricular function in infants with birth weights of <1250 g during the transitional period. METHODS: This was a prospective observational study conducted in the Coombe Women and Infants University Hospital in Dublin, Ireland. Flow patterns on the mitral and tricuspid valve, isovolumic relaxation time (IVRT), left and right ventricular output and superior vena cava flow were measured in 22 infants with a birth weight of below 1250 g at six, 12, 24 and 48 h of age. RESULTS: Early filling peak velocity of the left and right ventricle increased significantly from 30.3 to 39.5 cm/sec and 26.6 to 32.1 cm/sec, respectively. IVRT of the right ventricle decreased from 70 to 57 ms, and there was a nonsignificant decrease in IVRT of the left ventricle from 61.6 to 54 ms over the first 48 h. CONCLUSION: We have demonstrated that parameters of diastolic ventricular function change significantly over the first 48 h of life in preterm infants <1250 g and that these changes may represent early diastolic dysfunction during the transitional period.


Subject(s)
Infant, Extremely Premature/physiology , Ventricular Function , Cardiac Output , Diastole , Female , Humans , Infant, Newborn , Male , Mitral Valve/physiology , Prospective Studies , Tricuspid Valve/physiology , Vena Cava, Superior/physiology
14.
Neonatology ; 105(4): 275-81, 2014.
Article in English | MEDLINE | ID: mdl-24576799

ABSTRACT

BACKGROUND: Extremely preterm babies (delivered at <28 completed weeks of gestation) are frequently diagnosed with hypotension and treated with inotropic and pressor drugs in the immediate postnatal period. Dopamine is the most commonly used first-line drug. Babies who are treated for hypotension more frequently sustain brain injury, have long-term disability or die compared to those who are not. Despite the widespread use of drugs to treat hypotension in such infants, evidence for efficacy is lacking, and the effect of these agents on long-term outcomes is unknown. HYPOTHESIS: In extremely preterm babies, restricting the use of dopamine when mean blood pressure (BP) values fall below a nominal threshold and using clinical criteria to determine escalation of support ('restricted' approach) will result in improved neonatal and longer-term developmental outcomes. RESEARCH PLAN: In an international multi-centre randomised trial, 830 infants born at <28 weeks of gestation, and within 72 h of birth, will be allocated to 1 of 2 alternative treatment options (dopamine vs. restricted approach) to determine the better strategy for the management of BP, using a conventional threshold to commence treatment. The first co-primary outcome of survival without brain injury will be determined at 36 weeks' postmenstrual age and the second co-primary outcome (survival without neurodevelopmental disability) will be assessed at 2 years of age, corrected for prematurity. DISCUSSION: It is essential that appropriately designed trials be performed to define the most appropriate management strategies for managing low BP in extremely preterm babies.


Subject(s)
Arterial Pressure/drug effects , Dopamine/therapeutic use , Fluid Therapy , Hypotension/therapy , Infant, Extremely Premature , Research Design , Vasoconstrictor Agents/therapeutic use , Brain Injuries/etiology , Brain Injuries/physiopathology , Brain Injuries/prevention & control , Child Development , Child, Preschool , Clinical Protocols , Combined Modality Therapy , Dopamine/adverse effects , Europe , Fluid Therapy/adverse effects , Gestational Age , Humans , Hypotension/diagnosis , Hypotension/physiopathology , Infant, Newborn , Time Factors , Treatment Outcome , Vasoconstrictor Agents/adverse effects
15.
Early Hum Dev ; 89(7): 449-52, 2013 Jul.
Article in English | MEDLINE | ID: mdl-23628231

ABSTRACT

BACKGROUND: Near-infrared spectroscopy is a non-invasive method of assessing cerebral oxygenation. Functional echocardiography is increasingly used by neonatologists in the assessment of cardiovascular function. AIMS: To correlate cerebral tissue oxygenation index (cTOI) and cardiac output in infants less than 1250 g at 6, 12, 24 and 48 hours of age. STUDY DESIGN: A prospective observational study. SUBJECTS: Newborns with birth weight<1250 g. OUTCOME MEASURES: Serial assessments of superior vena cava (SVC) flow, right and left ventricular outputs, ductus arteriosus and cTOI were performed at 6, 12, 24 and 48 hours of age. Clinical parameters, including mean blood pressure, mean airway pressure, blood gas parameters and oxygen saturations were recorded. RESULTS: 22 neonates were enrolled following parental consent. The mean birth weight was 851 g (SD±201), mean gestational age was 25.9 weeks (SD±1.7). Mean SVC flow at 6 hours of age was 56.8 ml/kg/min and increased to 68.6 ml/kg/min at 48 hours of age. 9 infants (41%) had at least one measurement of low SVC flow (<41 ml/kg/min) in the first 48 hours. Mean cTOI was 65.2% at 6 hours of age, 63.9% at 12 hours of age, 68.8% at 24 hours of age and 67.2% at 48 hours of age. Cerebral fractional tissue oxygen extraction values were highest at 12 hours (0.31±0.09). There was no correlation between SVC flow and cTOI values. CONCLUSION: SVC flow, left and right ventricular output increased during first 48 hours of life. cTOI decreased at 12 hours of age with a concomitant increase in fractionated oxygen extraction. These changes reflect transitional changes in both cardiac and cerebral hemodynamics in extremely low gestational age newborns during the first 48 hours.


Subject(s)
Brain/blood supply , Cardiac Output , Infant, Very Low Birth Weight/physiology , Oxygen/blood , Vena Cava, Superior/physiology , Blood Volume , Female , Humans , Infant, Newborn , Infant, Premature , Male , Prospective Studies , Regional Blood Flow
16.
Ir Med J ; 105(2): 42-5, 2012 Feb.
Article in English | MEDLINE | ID: mdl-22455237

ABSTRACT

Parenteral nutrition (PN) plays an important role in providing nutrients for infants unable to tolerate enteral feeds study was to look at PN prescribing in neonatal units in the United Kingdom (U.K.) and Ireland, in particular in infants < 1.5 kg. A postal questionnaire was administered to the 235 neonatal units. The response rate was 179 (76%), of which 136 (76%) used PN. The initial amount of protein prescribed was 0.1-2 g/kg/day in 102 units (91%), >2 g/kg/day in 4 (4%) and 5 (5%) used no protein. 88 (80%) started lipids with the first PN prescription. Only 5 units (5%) started with >1 g/kg/day. The maximum dose of lipids and protein both varied from 2 - >4 g/kg/day. The initial glucose infusion rate was 4-8 mg/kg/min. Interestingly only 44% of units started PN in the first 24 hours of age. Hence results show great variation in PN prescribing.


Subject(s)
Infant, Very Low Birth Weight , Parenteral Nutrition , Amino Acids/administration & dosage , Humans , Infant, Newborn , Ireland , Parenteral Nutrition/standards , United Kingdom
17.
J Perinatol ; 30(8): 522-6, 2010 Aug.
Article in English | MEDLINE | ID: mdl-20336081

ABSTRACT

OBJECTIVE: Recent evidence suggests that high cortisol concentrations are associated with increased morbidity and mortality in very low birth weight (VLBW) infants. Neonatal illness severity and mortality risk scores are reliable in predicting morbidity and mortality. The objectives were (i) to assess the correlation between serum cortisol levels and clinical assessment of multi-organ dysfunction/illness severity scores (CRIB II, SNAPPE-II and neonatal multiple organ dysfunction score (NEOMOD)) in first 24 h in VLBW infants and (ii) to assess the relationship between surrogates of end organ blood flow and serum cortisol levels. STUDY DESIGN: A prospective observational cohort study. Neonates with birth weight <1500 g were eligible for enrollment. Echocardiography evaluation of superior vena cava (SVC) flow was carried out in the first 24 h life. Cortisol levels were measured simultaneously and appropriate clinical scores were calculated. RESULT: A total of 54 VLBW neonates were enrolled following parental consent. Two patients were excluded because of congenital malformations. In 14 babies the cortisol value was not simultaneously obtained. The mean birth weight was 1.08 kg, mean gestational age was 27.8 weeks. There was a significant correlation between cortisol and NEOMOD score (P=0.006). There was no correlation between cortisol and CRIB II score (P=0.34), SVC flow (P=0.49) and mean arterial blood pressure respectively (P=0.35). CONCLUSION: There was no correlation between SVC flow and cortisol values or between cortisol and mean blood pressure values. There was a significant correlation between cortisol levels and neonatal organ dysfunction score evaluated suggesting that stressed VLBW infants do mount a cortisol response.


Subject(s)
Hydrocortisone/blood , Hypotension/blood , Infant, Very Low Birth Weight , Severity of Illness Index , Vena Cava, Superior/diagnostic imaging , Adrenal Insufficiency/blood , Biomarkers/blood , Blood Flow Velocity , Gestational Age , Humans , Infant, Newborn , Intensive Care Units, Neonatal , Prospective Studies , Ultrasonography
18.
Acta Paediatr ; 98(1): 43-6, 2009 Jan.
Article in English | MEDLINE | ID: mdl-18945276

ABSTRACT

BACKGROUND: Superior vena cava (SVC) flow assesses blood flow from the upper body, including the brain. Near infrared spectroscopy (NIRS) provides information on brain perfusion and oxygenation. AIM: To assess the relationship between cerebral tissue oxygenation index (cTOI) and cardiac output measures in the very low birth weight (VLBW) infant in the first day of life. METHODS: A prospective observational cohort study. Neonates with birth weight less than 1500 g (VLBW) were eligible for enrollment. Newborns with congenital heart disease, major congenital malformations and greater than Papile grade1 Intraventricular Haemorrhage on day 1 of life were excluded. Echocardiographic evaluation of SVC flow was performed in the first 24 h of life. Low SVC flow states were defined as a flow less than 40 mL/kg/min. cTOI was measured using NIRO 200 Hamamatsu. RESULTS: Twenty-seven VLBW neonates had both echocardiography and NIRS performed. The median (range) gestation was 29/40 (25 + 3 to 31 + 5 weeks) and median birth weight was 1.2 kg (0.57-1.48 kg). The mean (SD) TOI was 68.1 (7.9)%. The mean (SD) SVC flow was 70.36(39.5) mLs/kg/min. The correlation coefficient of cerebral tissue oxygenation and SVC flow was r = 0.53, p-value 0.005. There was a poor correlation between right and left ventricular output and cTOI which is not surprising considering the influence of intra- and extracardiac shunts. CONCLUSION: There is a positive relationship between cerebral TOI values and SVC flow in the very low birth infant on day one of life.


Subject(s)
Brain/blood supply , Cerebrovascular Circulation , Infant, Very Low Birth Weight , Oxygen/blood , Vena Cava, Superior , Cerebral Ventricles/blood supply , Female , Hemodynamics , Humans , Infant, Newborn , Male , Prospective Studies , Regional Blood Flow , Risk Factors , Spectroscopy, Near-Infrared
19.
Eur J Pediatr ; 168(7): 809-13, 2009 Jul.
Article in English | MEDLINE | ID: mdl-18818945

ABSTRACT

We aimed to assess the relationship between the clinical and biochemical parameters of perfusion and superior vena cava (SVC) flow in a prospective observational cohort study of very low birth weight (VLBW) infants. Newborns with congenital heart disease were excluded. Echocardiographic evaluation of SVC flow was performed in the first 24 h of life. Capillary refill time (forehead, sternum and toe), mean blood pressure, urine output and serum lactate concentration were also measured simultaneously. Thirty-eight VLBW infants were examined. Eight patients (21%) had SVC flow less than 40 ml/kg/min. There was a poor correlation between the capillary refill time (in all sites), mean blood pressure, urine output and SVC flow. The correlation coefficient for the serum lactate concentration was r = -0.28, p = 0.15. The median serum lactate concentration was 3.5 (range 2.8-8.5) vs. 2.7 (range 1.2-6.9) mmol/l (p = 0.01) in low flow versus normal flow states. A serum lactate concentration of >2.8 was 100% sensitive and 60% specific for detecting a low flow state. Combining a capillary refill time of >4 s with a serum lactate concentration of >4 mmol/l had a specificity of 97% for detecting a low SVC flow state. Serum lactate concentrations are higher in low SVC flow states. A capillary refill time of >4 s combined with serum lactate concentrations >4 mmol/l increased the specificity and positive and negative predictive values of detecting a low SVC flow state.


Subject(s)
Blood Flow Velocity , Blood Pressure , Capillaries/physiopathology , Infant, Very Low Birth Weight , Lactic Acid/blood , Vena Cava, Superior/physiopathology , Female , Forehead/blood supply , Humans , Infant, Newborn , Intensive Care, Neonatal/methods , Male , Prospective Studies , Sensitivity and Specificity , Statistics, Nonparametric , Sternum/blood supply , Toes/blood supply , Ultrasonography , Vena Cava, Superior/diagnostic imaging
20.
Arch Dis Child Fetal Neonatal Ed ; 93(5): F368-71, 2008 Sep.
Article in English | MEDLINE | ID: mdl-18089627

ABSTRACT

BACKGROUND: Superior vena cava (SVC) flow assesses blood flow from the upper body, and may provide a reliable assessment of systemic blood flow. AIM: (i) To assess the relationship between SVC flow in first 24 h and adverse outcome in very low birthweight (VLBW) infants (ii) To assess correlation between SVC flow and left and right ventricular outputs and anterior cerebral artery (ACA) velocity measurements. METHODS: A prospective, observational cohort study. Neonates with birthweight <1500 g were eligible and those with congenital heart disease (excluding patent ductus arteriosus) or major congenital malformations were excluded. Echocardiographic evaluation of SVC flow, right and left ventricular outputs and ductal patency was done in the first 24 h of life. Capillary refill time, blood pressure and urine output were also measured simultaneously. The primary outcome was intraventricular haemorrhage (IVH) grade > or = II and/or early neonatal death (<7 days). RESULTS: 40 VLBW neonates were enrolled following parental consent. Two were excluded. 8 babies (21%) had low flow states. There was no difference between the cohorts in median birth weight (1.14 kg vs 1.17 kg; p = 0.76), gestational age (26.5 vs 28.0 weeks, respectively; p = 0.12) or hours of life at examination (18.5 h vs 21 h, respectively; p = 0.36). The incidence of primary outcome (IVH > or = grade II and/or early neonatal death) was 50% and 6.7%, respectively (p = 0.01). There was no correlation between SVC flow and right ventricular outputs and ACA velocity and blood pressure measurements. CONCLUSIONS: 21% of our VLBW infants had low SVC flow in the first 24 h, and this was associated with early neonatal death and/or severe IVH.


Subject(s)
Cerebral Ventricles/physiopathology , Cerebrovascular Circulation/physiology , Hypotension/physiopathology , Infant, Very Low Birth Weight/physiology , Vena Cava, Superior/physiopathology , Blood Flow Velocity/physiology , Cerebral Ventricles/diagnostic imaging , Echocardiography, Doppler, Color , Female , Humans , Hypotension/diagnostic imaging , Hypotension/therapy , Infant, Newborn , Intensive Care, Neonatal/methods , Pregnancy , Prospective Studies , Sensitivity and Specificity , Treatment Outcome , Vena Cava, Superior/diagnostic imaging
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