scholarly journals Epidemiology, Prevalence, and Incidence in Retinopathy of Prematurity

2018 ◽  
pp. 2-4
Keyword(s):  
Birth Weight ◽  
Preterm Infants ◽  
Premature Infants ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Retinal Vasculature ◽  
Frequency Data

Retinopathy of prematurity (ROP) is a disease that occurs in premature infants with retinal vasculature with an incomplete immature retina structure. ROP affects a substantial number of preterm infants worldwide. Both the incidence and severity increase with decreasing gestational age (GA) and birth weight (BW). In this review, epidemiological history and frequency data of the disease have been summarized after evaluating studies conducted in our country and abroad.

Reduction of Sleep Apnea and Bradycardia in Preterm Infants on Oscillating Water Beds: A Controlled Polygraphic Study

PEDIATRICS ◽  
1978 ◽  
Vol 61 (4) ◽  
pp. 528-533
Author(s):  
Anneliese F. Korner ◽  
Christian Guilleminault ◽  
Johanna Van den Hoed ◽  
Roger B. Baldwin
Keyword(s):  
Birth Weight ◽  
Sleep Apnea ◽  
Preterm Infants ◽  
Premature Infants ◽  
Gestational Age ◽  
Periodic Breathing ◽  
Quiet Sleep ◽  
Severe Bradycardia

The sleep and respiratory patterns of eight apneic preterm infants were polygraphically recorded for 24 hours. This polygraphic study was designed to test and extend our previous finding that gently oscillating water beds reduce apnea in premature infants. The infants who ranged in gestational age from 27 to 32 weeks and in birth weight from 1,077 to 1,650 gm served as their own controls, off and on the water bed. The 24-hour recordings were divided into four time blocks with the infant being placed on the water bed during alternate six-hour periods. Apnea was significantly reduced while the infants were on the oscillating water beds, with the longest apneic periods and those associated with severe bradycardia being reduced the most. Reduction of apnea was most consistent during indeterminate sleep and most pronounced during quiet sleep. Short respiratory pauses and periodic breathing were not significantly reduced. Reductions of central, obstructive, and mixed apneas were approximately equal.

scholarly journals Validation of The DIGIROP-Birth Model in A Chinese Cohort

2021 ◽  
Author(s):  
Sizhe Chen ◽  
Rong Wu ◽  
He Chen ◽  
Wenbei Ma ◽  
Shaolin Du ◽  
...  
Keyword(s):  
Risk Factors ◽  
Birth Weight ◽  
Receiver Operating Characteristic ◽  
Preterm Infants ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Roc Curve ◽  
Operating Characteristic ◽  
Predictive Performance ◽  
Postnatal Risk Factors

Abstract Background We aimed to validate the predictive performance of the DIGIROP-Birth model for identifying treatment-requiring retinopathy of prematurity (TR-ROP) in Chinese preterm infants to evaluate its generalizability across countries and races. Methods We retrospectively reviewed the medical records of preterm infants who were screened for retinopathy of prematurity (ROP) in a single Chinese hospital between June 2015 and August 2020. The predictive performance of the model for TR-ROP was assessed through the construction of a receiver-operating characteristic (ROC) curve and calculating the areas under the ROC curve (AUC), sensitivity, specificity, and positive and negative predictive values. Results Four hundred and forty-two infants (mean (SD) gestational age = 28.8 (1.3) weeks; mean (SD) birth weight = 1237.0 (236.9) g; 64.7% males) were included in the study. Analyses showed that the DIGIROP-Birth model demonstrated less satisfactory performance than previously reported in identifying infants with TR-ROP, with an area under the receiver-operating characteristic curve of 0.634 (95% confidence interval = 0.564–0.705). With a cutoff value of 0.0084, the DIGIROP-Birth model showed a sensitivity of 48/93 (51.6%), which increased to 89/93 (95.7%) after modification with the addition of postnatal risk factors. In infants with a gestational age < 28 weeks or birth weight < 1000 g, the DIGIROP-Birth model exhibited sensitivities of 36/39 (92.3%) and 20/23 (87.0%), respectively. Conclusions Although the predictive performance was less satisfactory in China than in developed countries, modification of the DIGIROP-Birth model with postnatal risk factors shows promise in improving its efficacy for TR-ROP. The model may also be effective in infants with a younger gestational age or with an extremely low birth weight.

scholarly journals The Correlation Between Bronchopulmonary Dysplasia and Platelet Metabolism in Preterm Infants

2021 ◽  
Vol 9 ◽  
Author(s):  
Longli Yan ◽  
Zhuxiao Ren ◽  
Jianlan Wang ◽  
Xin Xia ◽  
Liling Yang ◽  
...  
Keyword(s):  
Platelet Count ◽  
Birth Weight ◽  
Preterm Infants ◽  
Bronchopulmonary Dysplasia ◽  
Premature Infants ◽  
Gestational Age ◽  
Admission Diagnosis ◽  
Control Group ◽  
The Relationship

Background: Platelets play an important role in the formation of pulmonary blood vessels, and thrombocytopenia is common in patients with pulmonary diseases. However, a few studies have reported on the role of platelets in bronchopulmonary dysplasia.Objective: The objective of the study was to explore the relationship between platelet metabolism and bronchopulmonary dysplasia in premature infants.Methods: A prospective case-control study was performed in a cohort of premature infants (born with a gestational age &lt;32 weeks and a birth weight &lt;1,500 g) from June 1, 2017 to June 1, 2018. Subjects were stratified into two groups according to the diagnostic of bronchopulmonary dysplasia: with bronchopulmonary dysplasia (BPD group) and without bronchopulmonary dysplasia (control group). Platelet count, circulating megakaryocyte count (MK), platelet-activating markers (CD62P and CD63), and thrombopoietin (TPO) were recorded and compared in two groups 28 days after birth; then serial thrombopoietin levels and concomitant platelet counts were measured in infants with BPD.Results: A total of 252 premature infants were included in this study. Forty-eight premature infants developed BPD, 48 premature infants without BPD in the control group who were matched against the study infants for gestational age, birth weight, and admission diagnosis at the age of postnatal day 28. Compared with the controls, infants with BPD had significantly lower peripheral platelet count [BPD vs. controls: 180.3 (24.2) × 109/L vs. 345.6 (28.5) × 109/L, p = 0.001]. Circulating MK count in the BPD group was significantly more abundant than that in the control group [BPD vs. controls: 30.7 (4.5)/ml vs. 13.3 (2.6)/ml, p = 0.025]. The level of CD62p, CD63, and TPO in BPD group was significantly higher than the control group [29.7 (3.1%) vs. 14.5 (2.5%), 15.4 (2.0%) vs. 5.8 (1.7%), 301.4 (25.9) pg/ml vs. 120.4 (14.2) pg/ml, all p &lt; 0.05]. Furthermore, the concentration of TPO was negatively correlated with platelet count in BPD group with thrombocytopenia.Conclusions: Our findings suggest that platelet metabolism is involved in the development of BPD in preterm infants. The possible mechanism might be through increased platelet activation and promoted TPO production by feedback.

scholarly journals Validation of WINROP algorithm as a screening tool for retinopathy of prematurity in a northern Spanish cohort

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Raúl Fernández-Ramón
Keyword(s):  
Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Predictive Value ◽  
Predictive Values ◽  
Extremely Preterm ◽  
Extremely Preterm Infants ◽  
Sensitivity Specificity ◽  
Spanish Cohort

Introduction: WINROP (Weight, Insulin-like growth factor 1, Neonatal Retinopathy of Prematurity) is a computer-based ROP risk which correlate postnatal weight gain with the developed of treatment-requiring ROP. The purpose of this study was to evaluate the ability of the WINROP algorithm to detect severe (Type 1 or Type 2) ROP in a Spanish cohort of infants. Methods: Birth weight, gestational age, and weekly weight measurements of preterm infants (>23 and <32 weeks gestation) born between 2015 and 2017 were retrospectively collected and entered in WINROP algorithm. Infants were classified according alarm activation and compared with ROP screening outcomes. Sensitivity, specificity, and predictive values were calculated. Results: A total of 109 infants were included. The mean gestational age was 29.37 ± 2.26 weeks and mean birth weight was 1178 ± 320 g. Alarm occurred in 47.7 % (52/109) of neonates, with a mean time from birth to alarm of 1.9 ± 1.4 weeks. WINROP had a sensitivity of 100% (CI 95%, 59-100), a specificity of 55.9% (CI 95%, 45.7-65.7), a positive predictive value of 13.5% (CI 95%, 11.1-16.2) and a negative predictive value of 100% (CI 95%, 93.7-100) for predicting severe ROP. Conclusion: The WINROP algorithm has proven to be a useful tool in the detection of severe ROP in our cohort. Nevertheless, in extremely preterm infants (GA <28 weeks) the results should be taken with caution and an optimization of WINROP can be necessary to improve its utility in other populations.

scholarly journals Prevalence and outcome of retinopathy of prematurity in preterm infants, with low birth weight at KMCH, Tamil Nadu, India

2019 ◽  
Vol 6 (2) ◽  
pp. 264
Author(s):  
R. Nikhil ◽  
K. Rajendran ◽  
Bala Krishnan
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Tamil Nadu ◽  
Tertiary Care ◽  
Inclusion Criteria ◽  
Very High

Background: Premature infants have avascular or incompletely vascularized retina at birth and ROP evolves over 4-5 weeks after birth. The aim of this study is to know the prevalence of retinopathy of prematurity in preterm infants, with birth weight ≤ 1500 grams and/or gestational age ≤32 weeks in a tertiary care center.Methods: The study was conducted in Kovai Medical Centre and Hospital Coimbatore in 2016. The sample size is 95 babies. All preterm infants admitted with a birth weight of ≤1500 grams and/or ≤ 32 weeks of gestation and baby those at risk of ROP.Results: 95 babies have enrolled during the study period of which 78 babies fulfilled the inclusion criteria and completed this prospective study.12 babies could not complete the follow-up protocol and 5 babies died before full vascularization of the retina. 78 babies who fulfilled the inclusion criteria were screened and 15 babies were found to have ROP. The prevalence of ROP in this study is 19.2%.Conclusions: Among the preventable causes of blindness in children, ROP figures very high on the agenda. Low birth weight and gestational age were found to be the most important risk factors for the development of ROP.

scholarly journals Prevalence of patent ductus arteriosus in premature infants at the Neonatal Ward, Cipto Mangunkusumo Hospital, Jakarta

2016 ◽  
Vol 44 (6) ◽  
pp. 223 ◽  
Author(s):  
Benita Deselina ◽  
Sukman Tulus Putra ◽  
Rulina Suradi
Keyword(s):  
Birth Weight ◽  
Incidence Rate ◽  
Preterm Infants ◽  
Premature Infants ◽  
Gestational Age ◽  
Heart Diseases ◽  
Ductus Arteriosus ◽  
Chronological Age ◽  
Neonatal Ward ◽  
Patent Ductus

Background Patent ductus arterious (PDA) is one of the mostcommon congenital heart diseases encountered in preterm infants.The lower the birth weight and gestational age are, the higher theincidence of PDA is.Objectives To investigate the incidence of PDA in premature infantshospitalized in the neonatal wards of Cipto Mangunkusumo Hospitalusing echocardiography.Methods Preterm infants born between August and October 2003were included in this study. Clinical features were retrieved from medicalcharts. The first echocardiography was conducted on all of the preterminfants at the chronological age of 3 days. If PDA was detected,echocardiography was repeated at the chronological age of 6 days.Results During the 3-month period, sixty-five preterm infantsparticipated in this study and underwent echocardiography. In thefirst echocardiogram, the incidence rate of PDA was 32%. Atgestational age of less than 28 weeks, 1 of 2 infants had PDA. Of 3infants with birth weight of more than 1000 grams, 2 had PDA. Onthe second echocardiography, the incidence rate of PDA was 14%and mostly found in infants at gestational age of less than 28 weeks(8/9) and in those with birth weight of less than 1000 grams (7/9).All infants with RDS whose PDA was identified in the firstechocardiography proved to maintain their PDA in the secondechocardiography.Conclusion The incidence rate of PDA in preterm infants was14%. The lower the birth weight, the higher the incidence rate ofPDA. The presence of RDS is related to the delay in the closing ofthe arterial duct

scholarly journals TO STUDY THE PREVALENCE OF RETINOPATHY OF PREMATURITY IN PRETERM INFANTS: AN HOSPITAL BASED OBSERVATIONAL STUDY.

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Binit Singh ◽  
Rizwan Haider ◽  
Ved Prakash Gupta
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Preterm Infants ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Care Center ◽  
Tertiary Care ◽  
Tertiary Care Center ◽  
Inclusion Criteria

Background: Premature infants have avascular or incompletely vascularized retina at birth and ROP evolves over 4-5 weeks after birth. The aim of this study is to know the prevalence of retinopathy of prematurity in preterm infants, with birth weight ? 1500 grams and/or gestational age ?32 weeks in a tertiary care center. Material and methods: The study was conducted in a tertiary care center of Bihar region India The sample size is 145 babies. All preterm infants admitted with a birth weight of ?1500 grams and/or ? 32 weeks of gestation and baby those at risk of ROP. Results: 145 babies have enrolled during the study period of which 124 babies fulfilled the inclusion criteria and completed this prospective study.15 babies could not complete the follow-up protocol and 6 babies died before full vascularization of the retina. 124 babies who fulfilled the inclusion criteria were screened and 33 babies were found to have ROP. The prevalence of ROP in this study is 26.6%. Conclusions: Among the preventable causes of blindness in children, ROP figures very high on the agenda. Low birth weight and gestational age were found to be the most important risk factors for the development of ROP. Keywords: Low birth weight, Prematurity in preterm infant, Retinopathy, Oxygen therapy

scholarly journals Macular Findings Obtained by Spectral Domain Optical Coherence Tomography in Retinopathy of Prematurity

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Muhammet Kazim Erol ◽  
Ozdemir Ozdemir ◽  
Deniz Turgut Coban ◽  
Ahmet Burak Bilgin ◽  
Berna Dogan ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Birth Weight ◽  
Premature Infants ◽  
Gestational Age ◽  
Retinopathy Of Prematurity ◽  
Inverse Correlation ◽  
Spectral Domain ◽  
Optical Coherence ◽  
Foveal Thickness ◽  
Sd Oct

Purpose.To examine the macular findings obtained with spectral domain optical coherence tomography (SD OCT) in infants with retinopathy of prematurity (ROP).Materials and Methods.The macular SD OCT images of 190 premature infants were analyzed. Data regarding central foveal thickness (CFT), cystoid macular edema (CME), and cyst grading were compared. The relationships of CFT with gestational age and birth weight were investigated.Results.The results were obtained from 358 eyes of 179 infants (81 females and 98 males) of a mean gestational age of30.9±2.7weeks and a mean birth weight of1609±477 g. ROP was diagnosed in 126 eyes and CME in 139 eyes. A significantly greater percentage of eyes with ROP were found to have CME (54%) compared to eyes without ROP (31%;P=0.001). The incidence of CME was 46.3% for stage 1 ROP, 57.1% for stage 2, and 87.5% for stage 3. There was a weakly inverse correlation between CFT, gestational age, and birth weight (P=0.025,r=-0.227;P=0.002,r=-0.182, resp., Spearman correlation test).Conclusions.High-quality SD OCT images can be obtained from premature infants using the iVue system. Severity and frequency of CME in premature infants increase as stage of ROP increases.

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