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Bitar R, Kaur M, Crandall I, McNamara R, Revzin MV. Ultrasound evaluation of portal venous gas and its mimics. Abdom Radiol (NY) 2024:10.1007/s00261-024-04328-2. [PMID: 38735019 DOI: 10.1007/s00261-024-04328-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 05/13/2024]
Abstract
Portal venous gas on abdominal ultrasound classically represents an indirect indicator of bowel ischemia, a critical condition which poses a high patient mortality and therefore warrants emergent corrective action. While the classic appearance of portal venous gas on ultrasound is well-described in the literature, the characteristic descriptors are nonspecific and may actually represent other less emergent mimics. Therefore, while radiologists should remain vigilant for the detection of findings corresponding to portal venous gas, they should also be aware of similar-appearing entities in order to provide the most accurate diagnosis. This pictorial essay will open with imaging examples of true portal venous gas attributable to bowel ischemia and describe the classic features which should alert radiologists to this specific diagnosis. Subsequently, this pictorial essay will provide imaging examples of other various other clinical entities which on ultrasound may share similar imaging characteristics. An important objective of this pictorial essay is to highlight distinguishing imaging features along with specific clinical circumstances for each pathological entity which can direct radiologists into identifying the correct diagnosis.
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Affiliation(s)
- Ryan Bitar
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA
| | - Manroop Kaur
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA
| | - Ian Crandall
- Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Robert McNamara
- Department of Cardiovascular Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Margarita V Revzin
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, CT, USA.
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Chen L, Zhi W, Huang S, Wang J. A Nomogram for Predicting Surgical Risk in Neonates with Necrotizing Enterocolitis: A Retrospective Cohort Study. Indian J Pediatr 2024:10.1007/s12098-024-05091-4. [PMID: 38557821 DOI: 10.1007/s12098-024-05091-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/23/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVES To construct a nomogram that predicts the risk of surgery in patients with necrotizing enterocolitis (NEC). METHODS This retrospective cohort study recruited patients diagnosed with NEC at the Children's Hospital of Soochow University from 2013 to 2023. The neonates were divided into conservative and surgical-treatment groups. Univariate and multivariate logistic regressions were performed to identify factors influencing surgical risk, and a predictive model was constructed. RESULTS This study comprised 154 cases of NEC, 103 cases (66.9%) in the conservative group and 51 cases (33.1%) in the surgical group. Multivariate logistic regression analysis revealed that increased bloody stools [odds ratio (OR) 5.066; 95% confidence interval (CI) 1.7396-14.7532; p = 0.0029), oxygen inhalation (OR 1.8278; 95% CI 1.2113-2.7581; p = 0.0041), use of vasoconstrictors (OR 4.4446; 95% CI 1.7157-11.5137; p = 0.0021), portal venous gas (OR 4.5569; 95% CI 1.6324-12.7209; p = 0.0038), and blood sodium (OR 0.8339; 95% CI 0.7477-0.9301; p = 0.0011) were independent factors of surgical risk. The area under the nomogram's receiver operating characteristic (ROC) curve was 0.886. Decision curve analysis (DCA) and calibration curves demonstrated good predictive performance for the nomogram. CONCLUSIONS The nomogram effectively assessed the risk of surgical intervention in NEC patients, providing new insights and references for diagnosing and treating NEC.
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Affiliation(s)
- Lulu Chen
- Department of Surgery, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Wenxian Zhi
- Department of Surgery, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Shungen Huang
- Department of Surgery, Children's Hospital of Soochow University, Suzhou, 215025, China
| | - Jian Wang
- Department of Surgery, Children's Hospital of Soochow University, Suzhou, 215025, China.
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Chen Y, Lan C, Zhong W, Song K, Ma Z, Huang L, Zhu Y, Xia H. Plasma anti-myosin autoantibodies in the diagnosis of necrotizing enterocolitis. Eur J Pediatr 2023; 182:5203-5210. [PMID: 37715022 PMCID: PMC10640473 DOI: 10.1007/s00431-023-05188-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/17/2023]
Abstract
We aimed to assess whether autoantibodies can be used as biomarkers for necrotizing enterocolitis (NEC) and applied for its early diagnosis. A prospective observational study was conducted in neonates with suspected NEC abdominal distension (the developmental study), which consisted of 50 neonates finally divided into NEC (n = 24) and non-NEC (n = 26) cohorts based on follow-up results. Serum samples were collected within 48 h of illness onset and used for screening NEC-associated plasma autoantibodies by autoantigen microarray. Additionally, we validated anti-myosin autoantibodies by enzyme-linked immunosorbent assay (ELISA) in an independent validation study, for which we selected plasma samples within 48 h of onset of NEC (n = 38) and samples of gestational age- and weight-matched controls (n = 13). Autoantigen microarray revealed that both IgG and IgM anti-myosin autoantibodies in plasma from neonates with NEC were significantly higher than those in neonates with other diagnoses. ELISA showed that plasma anti-myosin autoantibodies increased in the NEC cohort, with 1.5-fold higher levels than in the non-NEC cohort. Anti-myosin autoantibodies were able to distinguish NEC from non-NEC, achieving an area under the curve (AUC) of 0.8856 (95% confidence interval (CI): 0.7918-0.9795), with sensitivity of 81.58% and specificity of 76.93%. Plasma anti-myosin autoantibodies were significantly higher in all three subtypes of NEC (P < 0.0001 for NEC I; P = 0.0018 for NEC II; P = 0.0011 for NEC III), especially in NEC stage I than that in the non-NEC controls. CONCLUSION Anti-myosin autoantibodies may be applied as a promising diagnostic marker for NEC, especially for NEC stage I. WHAT IS KNOWN • Intestinal damage and self-antigen exposure may lead to increased autoantibodies, and they are widely used as biomarkers for diagnosing inflammatory bowel disease. • Necrotizing enterocolitis (NEC) is a devastating disease with overwhelming inflammation and immune dysregulation. WHAT IS NEW • Increased autoantibodies were present in patients with NEC, even before typical X-ray manifestations. • Anti-myosin autoantibodies may be applied as a promising diagnostic marker for NEC.
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Affiliation(s)
- Yuqiong Chen
- Department of Pediatrics, The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Tianhe District, Guangzhou, Guangdong, CN 510630, China
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
- Department of Pediatrics, The First People's Hospital of Chenzhou, Chenzhou, Hunan, China
| | - Chaoting Lan
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Weiyong Zhong
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Kai Song
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Zuyi Ma
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Lihua Huang
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China.
| | - Yun Zhu
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China.
| | - Huimin Xia
- Department of Pediatrics, The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Tianhe District, Guangzhou, Guangdong, CN 510630, China.
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China.
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Kowalczyk A(O, Bhogal J, Surak A. Point-of-care ultrasound aided diagnosis and management of peritoneal parenteral nutrition extravasation in a preterm baby: A case report. Clin Case Rep 2023; 11:e7563. [PMID: 37415581 PMCID: PMC10320363 DOI: 10.1002/ccr3.7563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 07/08/2023] Open
Abstract
POCUS could identify some of UVC complications at the bedside. It complements the clinical picture and helps narrowing the deferential diagnosis when there is a clinical deterioration.
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Affiliation(s)
| | - Jagmeet Bhogal
- Department of PaediatricsUniversity of AlbertaEdmontonAlbertaCanada
| | - Aimann Surak
- Department of PaediatricsUniversity of AlbertaEdmontonAlbertaCanada
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Inarejos Clemente EJ, Barber I, Navallas Irujo M, Ladera E, Sousa P, Salas B, Fernández CV, Rodríguez-Fanjul J, Navarro OM. US for Evaluation of Acute Abdominal Conditions in Neonates. Radiographics 2023; 43:e220110. [PMID: 36602924 DOI: 10.1148/rg.220110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
US is the imaging modality of choice for evaluation of a variety of abdominal conditions, and in recent years it has also become useful and promising as a bedside technique for assessment of acute abdominal conditions in neonates. Bedside US can help, complement, and sometimes replace radiographic or contrast-enhanced studies in critically ill and labile neonates who are difficult to transport to the fluoroscopy suite. Some of the features of bedside US can be applied as point-of-care US (POCUS) of the sick neonate. Some of the abdominal conditions in neonates that can be assessed and monitored with bedside US are necrotizing enterocolitis and its complications, malrotation with a midgut volvulus, segmental volvulus, meconium peritonitis, and complicated inguinal hernia. High-resolution US with the use of 15-MHz and higher-frequency probes allows characterization of the bowel anatomy and features of intestinal abnormalities in neonates in fine detail. Color Doppler US and microvascular imaging improve accuracy in the detection and characterization of bowel vascularity, which is important in the treatment and follow-up of patients with intestinal conditions. © RSNA, 2023 Quiz questions for this article are available through the Online Learning Center. The slide presentation from the RSNA Annual Meeting is available for this article.
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Affiliation(s)
- Emilio J Inarejos Clemente
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Ignasi Barber
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - María Navallas Irujo
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Enrique Ladera
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Paulino Sousa
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Bárbara Salas
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Carmen Virginia Fernández
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Javier Rodríguez-Fanjul
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
| | - Oscar M Navarro
- From the Department of Diagnostic Imaging (E.J.I.C., I.B., M.N.I., E.L., P.S., B.S.) and Neonatal Intensive Care Unit, Department of Pediatrics (C.V.F.), Hospital Sant Joan de Déu, Av Sant Joan de Déu 2, 08950 Esplugues de Llobregat, Spain; Neonatal Intensive Care Unit, Department of Pediatrics, Hospital Germans Trias i Pujol, Badalona, Spain (J.R.F.); and Department of Medical Imaging, University of Toronto, Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada (O.M.N.)
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Rao H, Xie Y, Zhou Y, Liao Z. Application of comprehensive score of risk factors to determine the best time for surgical intervention in neonatal necrotizing enterocolitis. J Paediatr Child Health 2023; 59:276-281. [PMID: 36404681 PMCID: PMC10099772 DOI: 10.1111/jpc.16285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/20/2022] [Accepted: 11/07/2022] [Indexed: 11/22/2022]
Abstract
AIM Necrotizing enterocolitis (NEC) is a severe digestive systemic disease. Surgery is critical treatment for NEC patients. However, it is still hard to predict the optimal timing of surgery. Our study aimed to explore the indicative effect of comprehensive risk factors method in surgical intervention in NEC patients. METHODS Retrospective analysis was made on newborns with NEC, who were divided into group I (patients with NEC conservative therapeutic approach or no necrosis or perforation found in NEC operation) and group II (patients with necrosis or perforation found in NEC operation or failure of NEC conservative approach). Clinical manifestations and complications were recorded and the risk factors scores were calculated. The receiver operating characteristic curve and Youden index were calculated. RESULTS One hundred and six NEC patients in Huizhou Central People's hospital were analysed. Significant difference was observed in the comprehensive scores of the two groups to judge the indications of NEC surgery. Among the risk factors of NEC surgery, the incidence specificity of abdominal induration, abdominal tenderness, hypotension and pneumoperitoneum was 100% in group II. The area under the curve of the comprehensive score of risk factors was 0.981 (95% confidence interval 0.958-1.000). The best cutoff value obtained by the maximum Youden index is 3.5 (sensitivity 97.2%; specificity 52.8%). When the specificity is 100%, the best interception value is 7.5 (sensitivity 91.4%; specificity 100%). Complications such as surgical intervention, mortality, stenosis after conservative treatment, perforation or necrosis during surgery were significantly different in different comprehensive scores. CONCLUSIONS Abdominal induration, abdominal tenderness, hypotension and pneumoperitoneum are independent predictors of NEC surgery. Comprehensive risk factors score may be a potentially useful clinical decision-making tool for NEC surgery.
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Affiliation(s)
- Hongping Rao
- Newborn Department of Pediatrics, Central People's Hospital of Huizhou City, Huizhou, China
| | - Yanmei Xie
- Department of Radiology, Central People's Hospital of Huizhou City, Huizhou, China
| | - Yuxiang Zhou
- Newborn Department of Pediatrics, Central People's Hospital of Huizhou City, Huizhou, China
| | - Zhihang Liao
- Newborn Department of Pediatrics, Central People's Hospital of Huizhou City, Huizhou, China
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Aurora M, Keyes ML, Acosta JG, Swartz K, Lombay J, Ciaramitaro J, Rudnick A, Kelleher C, Hally S, Gee M, Madhavan V, Roumiantsev S, Cummings BM, Nelson BD, Lerou PH, Matute JD. Standardizing the Evaluation and Management of Necrotizing Enterocolitis in a Level IV NICU. Pediatrics 2022; 150:189570. [PMID: 36164852 PMCID: PMC10026590 DOI: 10.1542/peds.2022-056616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/12/2022] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Necrotizing enterocolitis (NEC) is a severe intestinal inflammatory disease and a leading cause of morbidity and mortality in NICUs. Management of NEC is variable because of the lack of evidence-based recommendations. It is widely accepted that standardization of patient care leads to improved outcomes. This quality improvement project aimed to decrease variation in the evaluation and management of NEC in a Level IV NICU. METHODS A multidisciplinary team investigated institutional variation in NEC management and developed a standardized guideline and electronic medical record tools to assist in evaluation and management. Retrospective baseline data were collected for 2 years previously and prospectively for 3.5 years after interventions. Outcomes included the ratio of observed-to-expected days of antibiotics and nil per os (NPO) on the basis of the novel guidelines and the percentage of cases treated with piperacillin/tazobactam. Balancing measures were death, surgery, and antifungal use. RESULTS Over 5.5 years, there were 124 evaluations for NEC. Special cause variation was noted in the observed-to-expected antibiotic and NPO days ratios, decreasing from 1.94 to 1.18 and 1.69 to 1.14, respectively. Piperacillin/tazobactam utilization increased from 30% to 91%. There were no increases in antifungal use, surgery, or death. CONCLUSIONS Variation in evaluation and management of NEC decreased after initiation of a guideline and supporting electronic medical record tools, with fewer antibiotic and NPO days without an increase in morbidity or mortality. A quality improvement approach can benefit patients and decrease variability, even in diseases with limited evidence-based standards.
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Affiliation(s)
- Megan Aurora
- Divisions of aNewborn Medicine
- Departments of Pediatrics
- These authors contributed equally to this work
| | - Madeline L Keyes
- Divisions of aNewborn Medicine
- Departments of Pediatrics
- Harvard Neonatal-Perinatal Medicine Fellowship Program, Boston, Massachusetts
- These authors contributed equally to this work
| | | | | | - Jesiel Lombay
- Divisions of aNewborn Medicine
- Departments of Pediatrics
| | | | | | | | | | - Michael Gee
- Radiology, Massachusetts General Hospital, Boston, Massachusetts
| | | | | | | | | | - Paul H Lerou
- Divisions of aNewborn Medicine
- Departments of Pediatrics
- These authors co-supervised this work
| | - Juan D Matute
- Divisions of aNewborn Medicine
- Departments of Pediatrics
- These authors co-supervised this work
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Ogoyama M, Takahashi H, Kagawa K, Shimozawa H, Yada Y, Wada S, Sago H, Fujiwara H. Disseminated intravascular coagulation complicated by amniotic band syndrome associated with deceased fetal umbilical cord following fetoscopic laser surgery. J Obstet Gynaecol Res 2022; 48:1989-1996. [PMID: 35614528 DOI: 10.1111/jog.15281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 02/27/2022] [Accepted: 04/25/2022] [Indexed: 12/15/2022]
Abstract
Fetoscopic laser surgery occasionally causes amniotic band syndrome, in which the disrupted amniotic membrane constricts fetal body parts, leading to functional or morphological loss. We report a case of fetal distress at 31 weeks of gestation in the larger surviving twin after fetoscopic laser surgery for selective intrauterine growth restriction, necessitating emergent cesarean section. Physical examination of the infant showed constriction rings caused by a disrupted amniotic membrane on the digits, and the distal part of the right index finger was necrotic because of tight strangulation by an amniotic band with the umbilical cord of the deceased smaller twin. Laboratory data showed severe coagulopathy, and the infant was diagnosed with disseminated intravascular coagulation (DIC). Immediate treatment improved his condition. DIC may have been associated with the necrotic finger, which was strangulated by the umbilical cord of the deceased fetus, because neither maternal coagulopathy nor an underlying neonatal disorder was detected.
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Affiliation(s)
- Manabu Ogoyama
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hironori Takahashi
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Keiko Kagawa
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hironori Shimozawa
- Department of Pediatrics, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Yukari Yada
- Department of Pediatrics, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Seiji Wada
- Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Haruhiko Sago
- Center for Maternal-Fetal, Neonatal and Reproductive Medicine, National Center for Child Health and Development, Tokyo, Japan
| | - Hiroyuki Fujiwara
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
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Ji C, Li J, Praster M, Rath B, Hildebrand F, Eschweiler J. Smoothing the Undersampled Carpal Bone Model with Small Volume and Large Curvature: A Feasibility Study. Life (Basel) 2022; 12:life12050770. [PMID: 35629436 PMCID: PMC9145375 DOI: 10.3390/life12050770] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/10/2022] [Accepted: 05/18/2022] [Indexed: 12/27/2022] Open
Abstract
The carpal bones are eight small bones with irregularities and high curvature on their surfaces. The 3D model of the carpal bone serves as the foundation of further clinical applications, e.g., wrist kinematic behavior. However, due to the limitation of the Magnetic Resonance Imaging (MRI) technique, reconstructed carpal bone models are discretely undersampled, which has dramatic stair-step effects and leads to abnormal meshes on edges or surfaces, etc. Our study focuses on determining the viability of various smoothing techniques for a carpal model reconstructed by in vivo gathered MR images. Five algorithms, namely the Laplacian smoothing algorithm, the Laplacian smoothing algorithm with pre-dilation, the scale-dependent Laplacian algorithm, the curvature flow algorithm, and the inverse distance algorithm, were chosen for evaluation. The assessment took into account the Relative Volume Difference and the Hausdorff Distance as well as the surface quality and the preservation of morphological and morphometric properties. For the five algorithms, we analyzed the Relative Volume Difference and the Hausdorff Distance for all eight carpal bones. Among all the algorithms, the scale-dependent Laplacian method processed the best result regarding surface quality and the preservation of morphological and morphometric properties. Based on our extensive examinations, the scale-dependent Laplacian algorithm is suitable for the undersampled carpal bone model with small volume and large curvature.
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Affiliation(s)
- Chengcheng Ji
- Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, 52074 Aachen, Germany; (C.J.); (M.P.); (F.H.); (J.E.)
| | - Jianzhang Li
- Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, 52074 Aachen, Germany; (C.J.); (M.P.); (F.H.); (J.E.)
- Correspondence: ; Tel.: +49-(0)-241-808-8386
| | - Maximilian Praster
- Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, 52074 Aachen, Germany; (C.J.); (M.P.); (F.H.); (J.E.)
| | - Björn Rath
- Department of Orthopaedic Surgery, Klinikum Wels-Grieskirchen, 4600 Wels, Austria;
| | - Frank Hildebrand
- Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, 52074 Aachen, Germany; (C.J.); (M.P.); (F.H.); (J.E.)
| | - Jörg Eschweiler
- Department of Orthopaedics, Trauma and Reconstructive Surgery, RWTH Aachen University Hospital, 52074 Aachen, Germany; (C.J.); (M.P.); (F.H.); (J.E.)
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Prediction of High Bell Stages of Necrotizing Enterocolitis Using a Mathematic Formula for Risk Determination. CHILDREN 2022; 9:children9050604. [PMID: 35626781 PMCID: PMC9139239 DOI: 10.3390/children9050604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/23/2022] [Accepted: 04/22/2022] [Indexed: 11/16/2022]
Abstract
Necrotizing enterocolitis (NEC) continues to cause high morbidity and mortality. Identifying early predictors for severe NEC is essential to improve therapy and optimize timing for surgical intervention. We present a retrospective study of patients with NEC, treated between 2010 and 2020, trying to identify factors influencing the severity of NEC. Within the study period, 88 affected infants with NEC or NEC-like symptoms are analyzed. A multiple logistic regression analysis reveals the following three independent predictors for NEC in Bell stage III: red blood cell transfusion (p = 0.027 with odds ratio (OR) = 3.298), sonographic findings (p = 0.037; OR = 6.496 for patients with positive vs. patients without pathological findings) and cardiac anatomy (p = 0.015; OR = 1.922 for patients with patent ductus arteriosus (PDA) vs. patients with congenital heart disease (CHD); OR = 5.478/OR = 2.850 for patients with CHD/PDA vs. patients without cardiac disease). Results are summarized in a clinical score for daily application in clinical routine. The score is easy to apply and combines clinically established parameters, helping to determine the timing of surgical intervention.
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11
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Hwang M, Tierradentro-García LO, Dennis RA, Anupindi SA. The role of ultrasound in necrotizing enterocolitis. Pediatr Radiol 2022; 52:702-715. [PMID: 34654968 DOI: 10.1007/s00247-021-05187-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 07/07/2021] [Accepted: 08/12/2021] [Indexed: 01/10/2023]
Abstract
Ultrasound has proved to be a useful modality for enhancing the diagnostic accuracy of necrotizing enterocolitis and associated complications. The standard imaging algorithm for evaluating necrotizing enterocolitis includes radiographs and clinical symptoms, the combination of which constitutes the Bell criteria. Major limitations of using the Bell criteria for diagnosing and clinically managing necrotizing enterocolitis include low diagnostic accuracy of radiographs and nonspecific symptomatology of preterm infants. In this regard, US can offer additional insights into bowel health by helping to characterize bowel motility, echogenicity, thickness, pneumatosis and perfusion. Extramural findings such as portal venous gas, nature and extent of ascites, and pneumoperitoneum can also be assessed. Recently, contrast-enhanced US was explored in a case series of preterm bowel disease and its diagnostic utility warrants further investigation. This article reviews the US features of necrotizing enterocolitis and highlights the role of US as a complement to radiographs, as well as the emerging use of contrast-enhanced US in necrotizing enterocolitis.
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Affiliation(s)
- Misun Hwang
- Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA. .,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Luis O Tierradentro-García
- Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA
| | - Rebecca A Dennis
- Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sudha A Anupindi
- Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd., Philadelphia, PA, 19104, USA.,Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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12
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Melatonin Alleviates Neonatal Necrotizing Enterocolitis by Repressing the Activation of the NLRP3 Inflammasome. Gastroenterol Res Pract 2022; 2022:6920577. [PMID: 35340691 PMCID: PMC8947927 DOI: 10.1155/2022/6920577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/22/2022] [Accepted: 02/26/2022] [Indexed: 02/08/2023] Open
Abstract
Objective Necrotizing enterocolitis (NEC) is one of the commonest gastrointestinal critical diseases in newborns. Several researches have proven the efficacy of melatonin (MEL) on NEC, but the latent mechanisms were ambiguous. We designed the current research to evaluate the function and mechanism of MEL on NEC in a neonatal mouse model. Methods The newborn mice were subjected to formula milk containing LPS and hypoxia to establish a NEC model and also intraperitoneally injected with MEL. During the experiment, all mice were closely monitored and weighed. The effect of MEL on the histopathological injury of the terminal ileum tissues, inflammation, and oxidative stress of serum in NEC mice was examined by hematoxylin-eosin (H&E) staining and ELISA. The effect of MEL on the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome was assessed via quantitative real-time PCR and Western blot. Results MEL intensified the survival rate and body weight in NEC mice. The H&E staining illustrated that MEL improved the histopathological injury in NEC mice. Moreover, MEL repressed the IL-1β, TNF-α, and MDA levels of serum and enhanced the SOD and GSH-Px levels of serum in NEC mice. We also discovered that MEL attenuated the mRNA and protein levels of NLRP3, Toll-like Receptor 4 (TLR4), NF-κB, and caspase-1 of the terminal ileum tissues in NEC mice. Conclusion Our research illuminated that MEL attenuated the severity of NEC via weakening the activation of the NLRP3 inflammasome.
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13
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Mishra V, Cuna A, Singh R, Schwartz DM, Chan S, Maheshwari A. Imaging for Diagnosis and Assessment of Necrotizing Enterocolitis. NEWBORN (CLARKSVILLE, MD.) 2022; 1:182-189. [PMID: 36864828 PMCID: PMC9976546 DOI: 10.5005/jp-journals-11002-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Necrotizing enterocolitis (NEC) is inflammatory bowel necrosis of preterm and critically ill infants. The disease is seen in 6-10% of preterm infants who weigh less than 1500 g at birth and carries considerable morbidity, mortality, and healthcare cost burden. Efforts focused on timely mitigation remain restricted due to challenges in early diagnosis as clinical features, and available laboratory tests remain nonspecific until late in the disease. There is renewed interest in the radiological and sonographic assessment of intestinal diseases due to technological advances making them safe, cost-efficient, and supporting Web-based transmission of images, thereby reducing time to diagnosis by disease experts. Most of our experience has been with plain abdominal radiography, which shows characteristic features such as pneumatosis intestinalis in up to 50-60% of patients. Many patients with advanced disease may also show features such as portal venous gas and pneumoperitoneum. Unfortunately, these features are not seen consistently in patients with early, treatable conditions, and hence, there has been an unfulfilled need for additional imaging modalities. In recent years, abdominal ultrasound (AUS) has emerged as a readily available, noninvasive imaging tool that may be a valuable adjunct to plain radiographs for evaluating NEC. AUS can allow real-time assessment of vascular perfusion, bowel wall thickness, with higher sensitivity in detecting pneumatosis, altered peristalsis, and characteristics of the peritoneal fluid. Several other modalities, such as contrast-enhanced ultrasound (CEUS), magnetic resonance imaging (MRI), and near-infrared spectroscopy (NIRS), are also emerging. In this article, we have reviewed the available imaging options for NEC evaluation.
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Affiliation(s)
- Vinayak Mishra
- Department of Pediatrics, Grant Medical College and Sir JJ Group of Hospitals, Mumbai, Maharashtra, India
| | - Alain Cuna
- Division of Neonatology, Children’s Mercy, Kansas City, Missouri, United States of America
| | - Rachana Singh
- Department of Pediatrics, Tufts Children’s Hospital, Boston, Massachusetts, United States of America
| | - Daniel M Schwartz
- Department of Radiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Sherwin Chan
- Department of Radiology, Children’s Mercy, Kansas City, Missouri, United States of America
| | - Akhil Maheshwari
- Global Newborn Society, Baltimore, Maryland, United States of America
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14
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Early Diagnosis of Neutropenic Enterocolitis by Bedside Ultrasound in Hematological Malignancies: A Prospective Study. J Clin Med 2021; 10:jcm10184277. [PMID: 34575387 PMCID: PMC8468879 DOI: 10.3390/jcm10184277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/23/2021] [Accepted: 09/13/2021] [Indexed: 02/06/2023] Open
Abstract
(1) Background: Neutropenic enterocolitis (NEC) is a life-threatening complication following chemotherapy with high mortality rates. Early diagnosis is crucial to improve outcomes. We designed a large prospective study employing bedside ultrasonography (US) as a novel approach to allow early diagnosis and prompt treatment to reduce mortality. (2) Methods: NEC was defined as US or computed tomography (CT)-proven bowel wall thickness ≥ 4 mm at the onset of at least one of the following symptoms: fever and/or abdominal pain and/or diarrhea during neutropenia. From 2007 to 2018, 1754 consecutive patients underwent baseline bedside US that was invariably repeated within 12 h from the onset of symptom(s) suggestive of NEC. (3) Results: Overall, 117 episodes of NEC were observed, and overall mortality was 9.4%. Bowel wall thickening was invariably absent in the negative control group. Abdominal pain associated with one or more symptoms correlated with the highest relative risk (17.33), sensitivity (89.7%), specificity (100%), and accuracy (96.2%) for diagnosis. The combination of abdominal pain and fever at onset significantly correlated with worse survival (p < 0.0001, OR 13.85). BWT (p = 0.046), type of therapy (p = 0.049) and blood culture positivity (p = 0.003) correlated with worse survival. (4) Conclusions: Bedside ultrasound is a non-invasive and radiation free imaging technique for early diagnosis of NEC and its prompt treatment significantly reduced mortality.
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15
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Zhang H, Guo L, Ling K, Hu X, Li W, Li L. Specific imaging features of intestinal perforation on supine abdominal X-ray evaluation in infants with necrotizing enterocolitis. WORLD JOURNAL OF PEDIATRIC SURGERY 2021; 4:e000255. [DOI: 10.1136/wjps-2020-000255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/20/2021] [Accepted: 03/23/2021] [Indexed: 11/04/2022] Open
Abstract
BackgroundNecrotizing enterocolitis (NEC) is associated with high mortality and morbidity in neonates. For infants with NEC, intestinal perforation is the most serious complication, and confirming perforation and performing radical surgical treatment as early as possible may reduce mortality and sequelae. The aim of this study was to identify the specific imaging characteristics of intestinal perforation after NEC on supine abdominal X-ray for the early diagnosis of intestinal perforation.MethodsA retrospective study was conducted at the Children’s Hospital of Chongqing Medical University. Infants admitted to the hospital from 2013 to 2020 with NEC (Bell’s stage ≥Ⅱ) were divided into perforation and non-perforation groups. All infants were examined by abdominal X-ray in the erect and supine positions. The sensitivity and specificity of specific X-ray signs were analyzed.ResultsA total of 598 infants were included, 113 of whom suffered from perforation. On the supine abdominal films, lucency over the liver shadow, the liver falciform ligament sign, the football sign, the Rigler sign, the triangle sign and more than any one of the above signs had sensitivities of 64.60%, 45.13%, 37.17%, 30.97%, 15.93% and 86.73%, respectively. None of these signs were found on erect or supine abdominal films in the non-perforation group. The total of accuracy of prediction was 46.76%, and the specificity of all the signs was 100%.ConclusionSpecific signs on supine abdominal X-ray could be used to confirm perforation in neonates with NEC with 86.73% sensitivity and 100% specificity.
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16
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Perrone S, Cremonini I, Marinelli F, Monaco S, Nicoletti L, Giordano M, Esposito S. New Strategies for Necrotizing Enterocolitis Diagnosis and Prevention in Newborns. Curr Pediatr Rev 2021; 17:191-200. [PMID: 33902422 DOI: 10.2174/1573396317666210426102610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/27/2020] [Accepted: 02/23/2021] [Indexed: 11/22/2022]
Abstract
Necrotizing enterocolitis is one of the most frequent and severe gastrointestinal diseases that affect preterm newborns in Neonatal Intensive Care Units. It was firstly described in 1960s, but this clinical entity was not widely recognized until the advent of modern neonatal intensive care. The disease is characterized by submucosal edema, infiltration of intestinal wall by immune cells, specifically neutrophils and, in severe forms, wall necrosis that leads to intestinal perforation. Its incidence is inversely associated to birth weight and gestational age. Necrotizing enterocolitis has been responsible for high rates of morbidity and mortality (15-30%), despite improvements made in neonatal care in the last decades. The challenge is to optimize strategies for early diagnosis, define the best medical and surgical treatments and standardize preventive measures. Several biomarkers have been proposed for the early prediction of necrotizing enterocolitis onset in preterm newborns and can be useful not only for diagnostic purposes but also for prediction of disease progression and severity. The purpose of this paper is to illustrate the most recent evidence regarding the diagnosis and prevention of necrotizing enterocolitis. This manuscript contributes to clinical decision-making in preterm neonates at high risk of developing necrotizing enterocolitis.
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Affiliation(s)
- Serafina Perrone
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | | | - Sara Monaco
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Laura Nicoletti
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Maurizio Giordano
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Susanna Esposito
- Department of Medicine and Surgery, University of Parma, Parma, Italy
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17
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Wei Y, Zhu Y, Luo X, Chen L, Hu X. Case Report: Is Pneumoperitoneum the Only Indication for Surgery in Necrotizing Enterocolitis? Front Pediatr 2021; 9:714540. [PMID: 34422732 PMCID: PMC8377350 DOI: 10.3389/fped.2021.714540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/09/2021] [Indexed: 11/13/2022] Open
Abstract
Objective: This study aims to explore whether pneumoperitoneum is the only surgical indication for neonates with necrotizing enterocolitis (NEC) and to analyze when early surgical intervention should be considered. Methods: A retrospective case series study was conducted including six neonates with stage 2a-2b NEC who received surgeries without absolute indication but with failed conservative treatment. In the meantime, seven infants who received surgery due to pneumoperitoneum and 32 infants treated with conservative treatment were also included for comparison. Results: Our results indicated that the six infants who received surgical treatment without pneumoperitoneum had a better prognosis compared to the seven infants who underwent surgical treatment after the onset of pneumoperitoneum. None of the infants who received early surgical treatment developed short bowel syndrome or neurodevelopmental impairment, while four out of six infants exhibited growth retardation. On the other hand, a total of five out of the seven infants who received surgical treatment after pneumoperitoneum forfeited further treatment, two developed short bowel syndrome, and one experienced neurodevelopmental impairment. Lower gestational age and birth weight, fetal growth restriction (FGR), perinatal asphyxia, postnatal steroid and vascular active drug use, blood transfusion, and hemodynamic significant patent ductus arteriosus were identified as risk factors associated with surgical repair for infants with NEC. In a laboratory test, infants who needed surgeries had a lower platelet count and a higher C-reactive protein value. Conclusion: Aggressive surgical treatment should be considered in infants with severe necrotizing enterocolitis before the onset of pneumoperitoneum. Lower gestational age and birth weight, FGR, perinatal asphyxia, postnatal steroid and vascular active drug use, blood transfusion, and hsPDA may be associated with surgical repair for infants with NEC.
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Affiliation(s)
- Ying Wei
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanhong Zhu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Chen
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaolin Hu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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18
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Chen W, Sun J, Kappel SS, Gormsen M, Sangild PT, Aunsholt L. Gut transit time, using radiological contrast imaging, to predict early signs of necrotizing enterocolitis. Pediatr Res 2021; 89:127-133. [PMID: 32244249 DOI: 10.1038/s41390-020-0871-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 02/07/2020] [Accepted: 03/04/2020] [Indexed: 01/23/2023]
Abstract
BACKGROUND Immature gut motility in preterm neonates may be a risk factor for necrotizing enterocolitis (NEC). Using preterm pigs as a model for infants, we hypothesized that intestinal dysmotility precedes NEC development. METHODS Eighty-five preterm pigs were fed increasing amounts of milk diets to induce NEC lesions, as detected at autopsy on day 5. Gut transit time was determined on day 4 by x-ray imaging after oral intake of contrast solution. RESULTS No clinical or radiological signs of NEC were detected on day 4, but macroscopic NEC lesions were recorded in 59% of pigs (n = 50) on day 5. Relative to pigs without NEC (noNEC, n = 35), pigs with small intestinal lesions (siNEC, n = 18) showed delayed stomach emptying time (StEmpty) and time for contrast to reach cecum (ToCecum) already on day 4. Pigs with lesions only in colon (coNEC, n = 20) showed more diarrhea, shorter ToCecum time, but longer small intestinal emptying time (SiEmpty). ToCecum time predicted siNEC and coNEC lesions with a receiver-operator characteristic area under the curve of 78-81%. CONCLUSIONS Region-dependent changes in gut transit time is associated with early NEC development in preterm pigs. How gut dysmotility is related to NEC in preterm infants requires further investigations. IMPACT Using preterm pigs as a model for preterm infants, we show that gut transit time, using serial x-ray contrast imaging, was changed in individuals with NEC-like lesions before they showed the typical radiological signs of NEC. Thus prolonged transit time across the entire gut was recorded when NEC lesions appeared in the small intestine but not when lesions were detected only in the colon. Until now, recordings of food transit have mainly investigated changes in the upper gut. Using serial x-rays, this study describes food transit across the entire gut and documents a region-dependent effect of NEC lesions on gut transit changes in preterm individuals. The findings provide proof of concept for use of x-ray contrast imaging as a tool to monitor gut transit in preterm pigs as models for infants. Delayed passage across the entire gut may be an early sign of small intestinal NEC, at least in pigs. More studies are needed to confirm relations in infants. In the future, it might be possible to use x-ray contrast imaging in preterm infants to better understand gut motility in relation to early NEC progression and need for medical NEC treatment.
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Affiliation(s)
- Wenchao Chen
- Department of Neonatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China.,Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jing Sun
- Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Susanne S Kappel
- Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Neonatology, Rigshospitalet, Copenhagen, Denmark
| | | | - Per T Sangild
- Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Neonatology, Rigshospitalet, Copenhagen, Denmark.,Department of Pediatrics, Odense University Hospital, Odense, Denmark
| | - Lise Aunsholt
- Comparative Pediatrics and Nutrition, Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark. .,Department of Neonatology, Rigshospitalet, Copenhagen, Denmark.
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19
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Wadood Z, Sams CM. Imaging of the Pediatric Acute Abdomen. Semin Roentgenol 2020; 55:373-384. [PMID: 33220784 DOI: 10.1053/j.ro.2020.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zara Wadood
- Department of Diagnostic Imaging, Warren Alpert Medical School of Brown University, Rhode Island Hospital/Hasbro Children's Hospital, Providence, RI
| | - Cassandra M Sams
- Department of Diagnostic Imaging, Warren Alpert Medical School of Brown University, Rhode Island Hospital/Hasbro Children's Hospital, Providence, RI.
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20
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Gokli A, Acord MR, Hwang M, Medellin-Kowalewski A, Rubesova E, Anupindi SA. Contrast-enhanced US in Pediatric Patients: Overview of Bowel Applications. Radiographics 2020; 40:1743-1762. [PMID: 33001781 DOI: 10.1148/rg.2020200019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Contrast material-enhanced US is a technique that is approved by the U.S. Food and Drug Administration for the characterization of liver lesions and intravesicular applications in children; however, contrast-enhanced US has several other pediatric applications in clinical practice. The most common application is for patients with inflammatory bowel disease (IBD). Contrast-enhanced US can be used to diagnose IBD, distinguish regions of active or chronic inflammation of the bowel wall, and evaluate associated complications such as abscesses, fistulas, and strictures. Dynamic contrast material evaluation provides qualitative and quantitative information about mural and mesenteric blood flow, which is essential in the determination of disease activity in these patients. It also has the potential to provide a means of monitoring the response to therapy beyond endoscopy or MR enterography. In addition to its use for IBD, contrast-enhanced US can be used to assess for bowel perfusion when problem solving in patients with necrotizing enterocolitis, neonatal bowel infarction, or intussusception. It is a useful imaging technique to fortify diagnoses that may otherwise be indeterminate, such as appendicitis, epiploic appendagitis, intraluminal bowel masses, and complex cysts. Finally, innovative applications such as shear-wave elastography have the potential to provide information about the stiffness of the bowel wall. Online supplemental material is available for this article. ©RSNA, 2020 See discussion on this article by Watson and Humphries.
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Affiliation(s)
- Ami Gokli
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Michael R Acord
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Misun Hwang
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Alexandra Medellin-Kowalewski
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Erika Rubesova
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
| | - Sudha A Anupindi
- From the Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA 19104 (A.G., M.R.A., M.H., S.A.A.); Department of Radiology, University of Calgary, Calgary, Alberta, Canada (A.M.K.); and Department of Radiology, Lucile Packard Children's Hospital, Stanford University, Stanford, Calif (E.R.)
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21
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Agakidou E, Agakidis C, Gika H, Sarafidis K. Emerging Biomarkers for Prediction and Early Diagnosis of Necrotizing Enterocolitis in the Era of Metabolomics and Proteomics. Front Pediatr 2020; 8:602255. [PMID: 33425815 PMCID: PMC7793899 DOI: 10.3389/fped.2020.602255] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
Necrotizing Enterocolitis (NEC) is a catastrophic disease affecting predominantly premature infants and is characterized by high mortality and serious long-term consequences. Traditionally, diagnosis of NEC is based on clinical and radiological findings, which, however, are non-specific for NEC, thus confusing differential diagnosis of other conditions such as neonatal sepsis and spontaneous intestinal perforation. In addition, by the time clinical and radiological findings become apparent, NEC has already progressed to an advanced stage. During the last three decades, a lot of research has focused on the discovery of biomarkers, which could accurately predict and make an early diagnosis of NEC. Biomarkers used thus far in clinical practice include acute phase proteins, inflammation mediators, and molecules involved in the immune response. However, none has been proven accurate enough to predict and make an early diagnosis of NEC or discriminate clinical from surgical NEC or other non-NEC gastrointestinal diseases. Complexity of mechanisms involved in NEC pathogenesis, which remains largely poorly elucidated, could partly explain the unsatisfactory diagnostic performance of the existing NEC biomarkers. More recently applied technics can provide important insight into the pathophysiological mechanisms underlying NEC but can also aid the detection of potentially predictive, early diagnostic, and prognostic biomarkers. Progress in omics technology has allowed for the simultaneous measurement of a large number of proteins, metabolic products, lipids, and genes, using serum/plasma, urine, feces, tissues, and other biological specimens. This review is an update of current data on emerging NEC biomarkers detected using proteomics and metabolomics, further discussing limitations and future perspectives in prediction and early diagnosis of NEC.
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Affiliation(s)
- Eleni Agakidou
- 1st Department of Neonatology, Faculty of Medicine, Ippokration General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Charalampos Agakidis
- 1st Department of Pediatrics, Faculty of Medicine, Ippokration General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Helen Gika
- Laboratory of Forensic Medicine and Toxicology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.,BIOMIC_AUTH, Bioanalysis and Omics Laboratory, Centre for Interdisciplinary Research and Innovation, CIRI-AUTH B1.4, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kosmas Sarafidis
- 1st Department of Neonatology, Faculty of Medicine, Ippokration General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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22
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Knudsen KBK, Thorup J, Thymann T, Strandby R, Nerup N, Achiam MP, Lauritsen T, Svendsen LB, Buelund L, Sangild PT, Ifaoui IBR. Laparoscopy to Assist Surgical Decisions Related to Necrotizing Enterocolitis in Preterm Neonates. J Laparoendosc Adv Surg Tech A 2019; 30:64-69. [PMID: 31874058 DOI: 10.1089/lap.2018.0180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Aim of the Study: Necrotizing enterocolitis (NEC) is a devastating intestinal disease that mainly affects preterm infants. Despite advancements in neonatal care, mortality of NEC remains high and controversies exist regarding the most appropriate time for surgical intervention and challenging of diagnosing NEC. Using a pig model of NEC, we aimed to examine if laparoscopy is feasible for diagnosis of NEC. Methods: Preterm caesarean-delivered piglets (n = 42) were fed with increasing amounts of infant formula up to 5 days to induce NEC. On days 3-5, we examined the intestine by laparoscopy under general anesthesia. The bowel was examined by tilting the pigs from supine position to the left and right side. Macroscopic NEC lesions were identified and graded according to a macroscopic scoring system, then a laparotomy was performed to rule out any organ injury and missed NEC lesions. Results: Visible NEC lesions (scores 4-6) were found in 26% (11/42) of the piglets. A positive predictive value of 100% was found for laparoscopy as a diagnostic marker of NEC in both colon and the small intestine. One piglet had a higher NEC score in the small intestine found at laparotomy, than at laparoscopy, resulting in a sensitivity of 67%, and a specificity of 100% for the small intestine. Conversely, both the sensitivity and specificity for colon was 100%. Acceptable levels of agreement was found, with minimal proportional bias in both colon and the small intestine for laparoscopy and laparotomy. Ultrasound examination had a lower sensitivity of 67% and specificity of 63%. All piglets were respiratory and circulatory stable during the procedure. Conclusions: In preterm piglets, laparoscopy is a feasible tool to diagnose NEC with a high positive predictive value and a high specificity.
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Affiliation(s)
- Kristine Bach Korsholm Knudsen
- Department of Surgical Gastroenterology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Pediatric Surgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Section for Comparative Pediatrics and Nutrition, IVH, University of Copenhagen, Copenhagen, Denmark
| | - Jorgen Thorup
- Department of Pediatric Surgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Thymann
- Section for Comparative Pediatrics and Nutrition, IVH, University of Copenhagen, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Rune Strandby
- Department of Surgical Gastroenterology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Nikolaj Nerup
- Department of Surgical Gastroenterology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Michael Patrick Achiam
- Department of Surgical Gastroenterology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Torsten Lauritsen
- Department of Anesthesiology, The Juliane Marie Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lars Bo Svendsen
- Department of Surgical Gastroenterology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lene Buelund
- Section of Diagnostic Imaging, Department of Veterinary Clinical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Per Torp Sangild
- Section for Comparative Pediatrics and Nutrition, IVH, University of Copenhagen, Copenhagen, Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Inge Botker Rasmussen Ifaoui
- Department of Surgical Gastroenterology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Pediatric Surgery, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
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van Druten J, Khashu M, Chan SS, Sharif S, Abdalla H. Abdominal ultrasound should become part of standard care for early diagnosis and management of necrotising enterocolitis: a narrative review. Arch Dis Child Fetal Neonatal Ed 2019; 104:F551-F559. [PMID: 31079066 DOI: 10.1136/archdischild-2018-316263] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/27/2022]
Abstract
Necrotising enterocolitis (NEC) is a leading cause of death and disability in preterm newborns. Early diagnosis through non-invasive investigations is a crucial strategy that can significantly improve outcomes. Hence, this review gives particular attention to the emerging role of abdominal ultrasound (AUS) in the early diagnosis of NEC, its performance against abdominal radiograph and the benefits of AUS use in daily practice. AUS has been used in the diagnosis and management of NEC for a couple of decades. However, its first-line use has been minimal, despite growing evidence demonstrating AUS can be a critical tool in the early diagnosis and management of NEC. In 2018, the NEC group of the International Neonatal Consortium recommended using AUS to detect pneumatosis and/or portal air in preterm NEC as part of the 'Two out of three' model. To facilitate widespread adoption, and future improvement in practice and outcomes, collaboration between neonatologists, surgeons and radiologists is needed to generate standard operating procedures and indications for use for AUS. The pace and scale of the benefit generated by use of AUS can be amplified through use of computer-aided detection and artificial intelligence.
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Affiliation(s)
- Jacqueline van Druten
- School of Architecture Computing and Engineering, University of East London, London, Greater London, UK
| | - Minesh Khashu
- Perinatal Health, Bournemouth University, Poole, Dorset, UK.,Department of Neonatology, Poole Hospital NHS Foundation Trust, Poole, UK
| | - Sherwin S Chan
- Department of Radiology, Children's Mercy Hospitals and Clinics, Kansas City, Kansas, USA
| | - Saeed Sharif
- School of Architecture Computing and Engineering, University of East London, London, Greater London, UK
| | - Hassan Abdalla
- School of Architecture Computing and Engineering, University of East London, London, Greater London, UK
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24
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25
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Raghuveer TS, Lakhotia R, Bloom BT, Desilet-Dobbs DA, Zarchan AM. Abdominal Ultrasound and Abdominal Radiograph to Diagnose Necrotizing Enterocolitis in Extremely Preterm Infants. Kans J Med 2019; 12:24-27. [PMID: 30854167 PMCID: PMC6396957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Talkad S. Raghuveer
- University of Kansas School of Medicine-Wichita, Department of Pediatrics, Division of Neonatology,Wesley Medical Center, Wichita, KS
| | - Richa Lakhotia
- University of Kansas School of Medicine-Wichita, Department of Pediatrics, Division of Neonatology,Wesley Medical Center, Wichita, KS
| | - Barry T. Bloom
- University of Kansas School of Medicine-Wichita, Department of Pediatrics, Division of Neonatology,Wesley Medical Center, Wichita, KS
| | - Debbi A. Desilet-Dobbs
- Wesley Medical Center, Wichita, KS,University of Kansas School of Medicine-Wichita, Department of Diagnostic Radiology
| | - Adam M. Zarchan
- Wesley Medical Center, Wichita, KS,University of Kansas School of Medicine-Wichita, Department of Diagnostic Radiology
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26
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The pediatric gastrointestinal tract: ultrasound findings in acute diseases. J Ultrasound 2019; 22:409-422. [PMID: 30758808 DOI: 10.1007/s40477-018-00355-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/15/2018] [Indexed: 02/07/2023] Open
Abstract
The study of the gastrointestinal tract by imaging, particularly using ultrasound, is a required instrument for diagnosis of acute and chronic gastrointestinal pathologies in pediatric age. Actually, ultrasound plays an increasing role in the evaluation of gastrointestinal tract in neonatal and pediatric patients because of their small body habitus and the presence of less fat tissue in the abdominal wall and peritoneal cavity. Ultrasound has certain advantages, thanks to the new wide-spectrum frequency probes able to assess a detailed study of the morphological aspects and functional characteristics of bowel loops, adding a new dimension to the imaging of this body system. In this paper, we review anatomy, ultrasound technique and sonographic findings of bowel pathology frequently encountered in neonatal and pediatric emergency setting.
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27
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Knell J, Han SM, Jaksic T, Modi BP. In Brief. Curr Probl Surg 2019. [DOI: 10.1067/j.cpsurg.2018.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Abstract
Necrotizing enterocolitis (NEC) is a potentially devastating condition that preferentially affects premature and low birth weight infants, with approximately half requiring acute surgical intervention. Surgical consult should be considered early on, and deterioration despite maximal medical therapy or the finding of pneumoperitoneum are the strongest indications for emergent surgical intervention. There is no clear consensus on the optimal surgical approach between peritoneal drainage and laparotomy; the best course of action likely depends on the infant's comorbidities, hemodynamic status, size, disease involvement, and available resources. Patients who develop surgical NEC are at a significant risk for morbidity and mortality, with long-term complications including short bowel syndrome, growth failure, and neurodevelopmental impairment. Further research into strategies that optimize outcomes following surgery for NEC in the neonatal intensive care unit and long-term are paramount.
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29
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Affiliation(s)
- Jamie Knell
- Center for Advanced Intestinal Rehabilitation, Department of Surgery, Boston Children's Hospital, Boston, MA
| | - Sam M Han
- Center for Advanced Intestinal Rehabilitation, Department of Surgery, Boston Children's Hospital, Boston, MA
| | - Tom Jaksic
- Center for Advanced Intestinal Rehabilitation, Department of Surgery, Boston Children's Hospital, Boston, MA; Harvard Medical School, Center for Advanced Intestinal Rehabilitation, Boston Children's Hospital, Boston, MA
| | - Biren P Modi
- Harvard Medical School, Center for Advanced Intestinal Rehabilitation, Boston Children's Hospital, Boston, MA.
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30
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Knell J, Han SM, Jaksic T, Modi BP. WITHDRAWN: In Brief. Curr Probl Surg 2018. [DOI: 10.1067/j.cpsurg.2018.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Sun Z. 3D printing in medicine: current applications and future directions. Quant Imaging Med Surg 2018; 8:1069-1077. [PMID: 30701160 PMCID: PMC6328380 DOI: 10.21037/qims.2018.12.06] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 12/10/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Zhonghua Sun
- Discipline of Medical Radiation Sciences, School of Molecular and Life Sciences, Curtin University, Perth, Western Australia, Australia
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32
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Reference intervals for stool calprotectin in preterm neonates and their utility for the diagnosis of necrotizing enterocolitis. J Perinatol 2018; 38:1379-1385. [PMID: 29740189 DOI: 10.1038/s41372-018-0108-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/27/2018] [Accepted: 03/07/2018] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Calprotectin is an antimicrobial protein found in stool when released by granulocytes. We sought to create stool calprotectin reference ranges in preterm neonates and to evaluate whether levels exceeding the upper reference interval are diagnostic for necrotizing enterocolitis (NEC). STUDY DESIGN Stool calprotectin was measured in premature neonates without gastrointestinal pathology to create reference intervals. For comparison, levels from infants undergoing "rule out NEC" evaluations were plotted on these reference intervals. RESULTS Stool calprotectin reference intervals were created according to gestational age at birth and corrected gestational age. Levels during "rule out NEC" evaluations were more often above the upper reference interval with NEC vs. those without NEC. CONCLUSIONS Stools from preterm neonates have a higher range of calprotectin than stools from healthy term neonates. In evaluating preterm neonates for NEC with stool calprotectin, a calprotectin upper reference interval that incorporates corrected gestational age best predicts the diagnosis of NEC.
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Luo Q, Li Y, Luo L, Diao W. Comparisons of the accuracy of radiation diagnostic modalities in brain tumor: A nonrandomized, nonexperimental, cross-sectional trial. Medicine (Baltimore) 2018; 97:e11256. [PMID: 30075495 PMCID: PMC6081153 DOI: 10.1097/md.0000000000011256] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Tumor morphology improved sensitivity, accuracy, and specificity of the diagnosis, but all diagnostic techniques have attenuation correction issues.To compare computed tomographic (CT), positron emission tomographic (PET), and magnetic resonance imaging (MRI) characteristics of patients with brain tumor in a Chinese setting.A nonrandomized, nonexperimental, cross-sectional trial.Jining No. 1 People's Hospital, China.In total, 127 patients who had clinically confirmed a brain tumor were included in the cross-sectional study. Patients were subjected to brain CT, MRI, and PET. The tumors resected after brain surgery were subjected to morphological diagnosis. Statistical analysis of data of surgically removed tumor and that of different methods of diagnosis was performed using Wilcoxon test following Tukey-Kramer test. Spearmen correlation was performed between diagnostic modalities and in vivo morphology. Results were considered significant at 99% of confidence level.The data of diameter and volume of tumor derived from CT (Spearman r = 0.9845 and 0.9706), and MRI (Spearman r = 0.955 and 0.2378) were failed to correlate with that of that of the surgically removed tumor. However, prediction of diameter and volume of the tumor by PET (Spearman r = 0.9922 and 0.9921) were correlated with that of the surgically removed tumor. CT and MRI were failed to quantified pituitary adenomas.The study was recommended PET for assessment of brain tumor.
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Affiliation(s)
| | | | - Lan Luo
- Department of Gynecology, Jining No. 1 People's Hospital, Jining, Shandong, China
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34
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Neonatal Bowel Disorders: Practical Imaging Algorithm for Trainees and General Radiologists. AJR Am J Roentgenol 2018. [PMID: 29528714 DOI: 10.2214/ajr.17.19378] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Neonatal bowel disorders require prompt and accurate diagnosis to avoid potential morbidity and mortality. Symptoms such as feeding intolerance, emesis, or failure to pass meconium may prompt a radiologic evaluation. CONCLUSION We discuss the most common neonatal bowel disorders and present a practical imaging algorithm for trainees and general radiologists.
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