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Dyrka K, Dzialach L, Niedziela M, Jonczyk-Potoczna K, Derwich K, Obara-Moszynska M. Central Diabetes Insipidus in Children as a Diagnostic Challenge. Clin Pediatr (Phila) 2024; 63:1044-1055. [PMID: 37798950 DOI: 10.1177/00099228231202607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Central diabetes insipidus (CDI) is a disorder in the pediatric population resulting from antidiuretic hormone deficiency. The excessive production of dilute urine characterizes it and manifests with polyuria, nocturia, and polydipsia. The diagnostics of CDI is often challenging, especially concerning the underlying condition of the disease. This article highlights the diverse clinical presentation of children with CDI and diagnostic difficulties among patients with polyuria and polydipsia. The article also reviews the etiology, symptoms, diagnostic workup, and management of CDI. We present 4 pediatric patients (aged 3-13.5 years) diagnosed with CDI of different etiology: 1 due to septo-optic dysplasia/optic nerve hypoplasia and 3 due to acquired processes such as Langerhans cell histiocytosis and germ cell tumor in 2 patients. Central diabetes insipidus was the first manifestation of a tumor or granuloma in all presented patients with acquired pathology. The patients sometimes need long-term follow-up to establish the proper final diagnosis.
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Affiliation(s)
- Kamil Dyrka
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Lukasz Dzialach
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
- Department of Internal Medicine, Endocrinology and Diabetes, Medical University of Warsaw, Warsaw, Poland
| | - Marek Niedziela
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Katarzyna Jonczyk-Potoczna
- Department of Pediatric Radiology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Katarzyna Derwich
- Department of Pediatric Oncology, Hematology and Transplantology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
| | - Monika Obara-Moszynska
- Department of Pediatric Endocrinology and Rheumatology, Institute of Pediatrics, Poznan University of Medical Sciences, Poznan, Poland
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Hawton K, Galloway L, Harmer M, Kumaran A, Kharbanda M, Platt C, Candler T. Challenging case of hypernatraemia in infancy. Arch Dis Child Educ Pract Ed 2024:edpract-2024-327310. [PMID: 39209372 DOI: 10.1136/archdischild-2024-327310] [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: 04/24/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
A 1-month-old male infant presented unwell with a fever and shock. Blood tests showed hypernatraemia, hyperchloraemia and raised urea and creatinine. Initially, he was treated for dehydration secondary to sepsis. However, high urine output combined with low urine osmolality and high plasma osmolality was suggestive of a disorder of arginine vasopressin (AVP), previously called diabetes insipidus (DI). On further endocrine testing, thyroxine (T4) level was low with an inappropriately normal thyroid-stimulating hormone level with no other anterior pituitary hormone abnormalities, a normal MRI head and ophthalmological assessment. Desmopressin, a synthetic form of AVP, was commenced, however, there was an inadequate response despite dose escalation, leading to a diagnosis of AVP resistance (previously nephrogenic DI) rather than AVP deficiency (previously cranial DI). Copeptin, an AVP precursor peptide and surrogate marker, was significantly elevated. A renal tubulopathy genetic screen demonstrated a likely pathogenic hemizygous variant in the AVP receptor 2 gene, which has previously been associated with X-linked vasopressin resistance. This case demonstrates the challenge of differentiating between AVP deficiency and resistance in infancy and the value of copeptin and genetic testing in confirming diagnosis. We outline an approach to fluid management in AVP disorders.
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Affiliation(s)
- Katherine Hawton
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
- University of Bristol, Bristol, UK
| | | | - Matthew Harmer
- Department of Paediatric Nephrology, University Hospital Southampton NHS Foundation Trust, Southampton, Hampshire, UK
- University of Southampton, Southampton, UK
| | - Anitha Kumaran
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mira Kharbanda
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Caroline Platt
- University of Bristol, Bristol, UK
- Bristol Renal Unit, Bristol Royal Hospital for Children, Bristol, UK
| | - Toby Candler
- University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
- University of Bristol, Bristol, UK
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Zhao Y, Li K, Chen C, Lv X, Wang Y, Ma L, Fu S, Liu J. A novel AVPR2 gene mutation in a Chinese pedigree with nephrogenic diabetes insipidus. Postgrad Med 2024:1-8. [PMID: 39041787 DOI: 10.1080/00325481.2024.2383555] [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: 04/26/2024] [Accepted: 07/19/2024] [Indexed: 07/24/2024]
Abstract
Nephrogenic diabetes insipidus (NDI) is a rare genetic disorder primarily associated with mutations in the arginine vasopressin receptor 2 (AVPR2) gene or the aquaporin 2 (AQP2) gene, resulting in impaired water reabsorption in the renal tubules. This report describes a case of a young male patient with NDI from China with a history of polydipsia and polyuria for over 15 years. Laboratory examinations of the proband indicated low urine-specific gravity and osmolality. Urologic ultrasound revealed severe bilateral hydronephrosis in both kidneys, bilateral dilatation of the ureters, roughness of the bladder wall, and the formation of muscle trabeculae. The diagnosis of diabetes insipidus was confirmed by water deprivation tests. The administration of posterior pituitary hormone did not alter urine-specific gravity, and osmolality remained at a low level (<300 mOsm/kg). Based on these findings, and the genetic tests of the proband and his parents were performed. A missense mutation (c.616 G>C) in exon 3 of the AVPR2 gene of the proband was found, caused by the substitution of amino acid valine to leucine at position 206 [p.Val206Leu], which was a hemizygous mutation and consistent with X-chromosome recessive inheritance. The administration of oral hydrochlorothiazide improves the symptoms of polydipsia and polyuria in the proband. This novel AVPR2 gene mutation may be the main cause of NDI in this family, which induces a functional defect in AVPR2, and leads to reduced tubular reabsorption of water.
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Affiliation(s)
- Yangting Zhao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Kai Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Chongyang Chen
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaoyu Lv
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Yawen Wang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Lihua Ma
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Songbo Fu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Jingfang Liu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
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Saba L, Hanna C, Creo AL. Updates in hyponatremia and hypernatremia. Curr Opin Pediatr 2024; 36:219-227. [PMID: 38174733 DOI: 10.1097/mop.0000000000001324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
PURPOSE OF REVIEW Hyponatremia and hypernatremia are commonly encountered electrolyte abnormalities that require timely and careful intervention, as they can be associated with significant morbidity and mortality. RECENT FINDINGS This review article addresses the etiology, presentation, diagnosis, and management of both hyponatremia and hypernatremia, emphasizing the latest advancements and emerging trends in pediatric care. SUMMARY A methodical approach is needed to accurately assess and treat hyponatremia and hypernatremia. Both conditions continue to rely on serum and urine testing, however newer tests such as copeptin and stimulated testing may hold promise to further refine testing in the future.
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Affiliation(s)
- Leslie Saba
- Department of Pediatric and Adolescent Medicine, Mayo Clinic
| | - Christian Hanna
- Division of Pediatric Nephrology and Hypertension, Department of Pediatric and Adolescent Medicine, Mayo Clinic
- Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic
| | - Ana L Creo
- Division of Pediatric Endocrinology, Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota, USA
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Xu D, Song XJ, Chen X, Wang JW, Cui YL. Advances and future perspectives of intranasal drug delivery: A scientometric review. J Control Release 2024; 367:366-384. [PMID: 38286336 DOI: 10.1016/j.jconrel.2024.01.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 01/31/2024]
Abstract
Intranasal drug delivery is as a noninvasive and efficient approach extensively utilized for treating the local, central nervous system, and systemic diseases. Despite numerous reviews delving into the application of intranasal drug delivery across biomedical fields, a comprehensive analysis of advancements and future perspectives remains elusive. This review elucidates the research progress of intranasal drug delivery through a scientometric analysis. It scrutinizes several challenges to bolster research in this domain, encompassing a thorough exploration of entry and elimination mechanisms specific to intranasal delivery, the identification of drugs compatible with the nasal cavity, the selection of dosage forms to surmount limited drug-loading capacity and poor solubility, and the identification of diseases amenable to the intranasal delivery strategy. Overall, this review furnishes a perspective aimed at galvanizing future research and development concerning intranasal drug delivery.
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Affiliation(s)
- Dong Xu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi' an 710032, China
| | - Xu-Jiao Song
- State Key Laboratory of Component-based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, PR China
| | - Xue Chen
- State Key Laboratory of Component-based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, PR China
| | - Jing-Wen Wang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi' an 710032, China
| | - Yuan-Lu Cui
- State Key Laboratory of Component-based Chinese Medicine, Research Center of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, PR China.
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Korkmaz HA, Coşkunol F, Barışık V, Ozkan B. The therapeutic effect of oral desmopressin lyophilisate formulation in children with central diabetes insipidus. J Pediatr Endocrinol Metab 2023; 36:925-929. [PMID: 37658767 DOI: 10.1515/jpem-2023-0203] [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: 05/02/2023] [Accepted: 08/15/2023] [Indexed: 09/05/2023]
Abstract
OBJECTIVES We aimed to assess the efficacy of oral use of oral desamino-D-arginine-8-vasopressin lyophilisate (OLD) in children with central diabetes insipidus (CDI). METHODS Clinical, laboratory, and imaging characteristics of twenty-five children with CDI treated with OLD were evaluated. RESULTS Fourteen boys and eleven girls with a mean age of 52.37 months were evaluated. These children (mean weight and height at admission, 26.81 ± 14.8 kg vs. 92.52 ± 30 cm) presented with failure to thrive, irritability, prolonged fever, polyuria and hypernatremia (mean sodium level, 143.12 ± 8.6 mEq/L). At the time of hypernatremia, mean serum and urine osmolality were 298.2 ± 18 mOsm/kg and 160.20 ± 8.7 mOsm/kg, respectively. ADH levels were undetectable (<0.5 pmol/L) at admission in all cases. Oral administration of desmopressin lyophilisate (120 µg/tablet) was initiated at a dose of 5 μg/kg/day in two divided doses together with controlled water intake to avoid hyponatremia. Serum sodium levels normalised in a mean duration of 15.2 ± 16.4 h with a mean decline rate of 0.12 ± 0.04 mEq/L/h. Nine children needed rehospitalization because of hypernatremia due to non-compliance. Four episode of hyponatremia was observed. Weight gain and growth were normal during the mean follow-up duration of 37.79 ± 48.2 months. CONCLUSIONS Administration of OLD was practical and safe in the treatment of CDI in children with CNS malformations in this small retrospective series.
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Affiliation(s)
- Hüseyin Anıl Korkmaz
- Department of Pediatrics, Division of Pediatric Endocrinology, Dr. Behçet Uz Pediatric Diseases and Surgery Training and Research Hospital, İzmir, Türkiye
| | - Fulya Coşkunol
- Department of Pediatrics, Dr. Behçet Uz Pediatric Diseases and Surgery Training and Research Hospital, İzmir, Türkiye
| | - Vatan Barışık
- Department of Internal Medicine, Izmir Tepecik Training and Research Hospital, Izmir, Türkiye
| | - Behzat Ozkan
- Department of Pediatrics, Division of Pediatric Endocrinology, Dr. Behçet Uz Pediatric Diseases and Surgery Training and Research Hospital, İzmir, Türkiye
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Gippert S, Brune M, Dirksen RL, Choukair D, Bettendorf M. Arginine-Stimulated Copeptin-Based Diagnosis of Central Diabetes Insipidus in Children and Adolescents. Horm Res Paediatr 2023; 97:270-278. [PMID: 37607514 DOI: 10.1159/000532015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 07/06/2023] [Indexed: 08/24/2023] Open
Abstract
INTRODUCTION Diagnosis of central diabetes insipidus (CDI) remains challenging. Water deprivation testing and hypertonic saline infusion, as established diagnostic tests, are mentally and physically demanding for patients. Arginine-stimulated copeptin has been shown as a putative parameter for the differential diagnosis of CDI in adults. METHODS In this single-centre retrospective study, we identified paediatric patients with suspected pituitary disorders who underwent standard arginine testing. Patients with CDI, matched controls, and primary polydipsia (PP) were identified. Diagnoses were confirmed retrospectively using comprehensive clinical and diagnostic characteristics. Serum copeptin concentrations were measured using a commercially available automated immunofluorescence assay (B.R.A.H.M.S Copeptin-proAVP KRYPTOR®) in samples stored for a median of 4.6 years (1.3-10.84) and collected before and 60 min after arginine infusion. Cut-off analyses were performed using ROC curves. RESULTS Serum samples from 32 patients with CDI, 32 matched controls, and 5 patients with PP (n = 69; 51 males, 18 females) were available for analysis. Median copeptin concentrations increased from 4.47 pmol/L (interquartile range [IQR]: 3.47-8.36) to 6.96 pmol/L (IQR: 4.51-12.89; p < 0.001) in controls, from 1.46 pmol/L (IQR: 1.21-2.12) to 1.44 (IQR: 1.10-1.87; p = 0.645, ns) in CDI, and from 4.40 pmol/L (3.95-6.33) to 9.58 pmol/L (8.19-11.42; p < 0.001) in PP. The published cut-off value of 3.8 pmol/L revealed a sensitivity of 100% and a specificity of 86.5% in confirming CDI. CONCLUSION Our results suggest that arginine-stimulated serum copeptin concentrations are a sensitive and specific diagnostic tool for CDI in paediatric patients, which may replace and simplify the conventional diagnostic pathway of water deprivation testing and hypertonic saline infusion.
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Affiliation(s)
- Sebastian Gippert
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Maik Brune
- Division of Endocrinology, Diabetes, Metabolic Diseases and Clinical Chemistry, Central Laboratory, University Hospital Heidelberg, Heidelberg, Germany
| | - Ruth L Dirksen
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Daniela Choukair
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
| | - Markus Bettendorf
- Division of Paediatric Endocrinology and Diabetes, University Children's Hospital Heidelberg, Heidelberg, Germany
- Centre for Rare Diseases, University Hospital Heidelberg, Heidelberg, Germany
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Binder G, Weber K, Peter A, Schweizer R. Arginine-stimulated copeptin in children and adolescents. Clin Endocrinol (Oxf) 2023; 98:548-553. [PMID: 36710502 DOI: 10.1111/cen.14880] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/16/2022] [Accepted: 01/09/2023] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Copeptin is secreted in isomolar amounts along with arginine vasopressin peptide (AVP) from the neurohypophysis. Its stability makes it a perfect candidate for the endocrine approach in the diagnosis of AVP deficiency (AVPD; cranial diabetes insipidus; CDI). However, pediatric reference values are lacking. DESIGN AND PATIENTS This is a monocentric retrospective analysis of donated residual serum samples from 72 children and adolescents who underwent arginine or growth hormone-releasing hormone-arginine stimulation to test GH secretory capacity from 2018 to 2022. MEASUREMENTS Copeptin was measured in baseline, 30-, and 60-min samples by BRAHMS Copeptin proAVP Kryptor immunofluorescence assay. RESULTS Of the 72 patients, 4 suffered from complete AVPD (CDI). The baseline level of copeptin in the 68 non-AVPD (non-CDI) patients was highly variable (range: 1.3-44.4 pmol/L). The increase after arginine was moderate (30 min range: 1.6-40.4 pmol/L). The median baseline and peak copeptin levels were 5.6 and 8.0 pmol/L, respectively. The 2.5th percentile of the baseline and peak values of copeptin were 2.1 and 3.3 pmol/L, respectively. The increase and peak value of copeptin were inversely related to age (R = -.405; p = .011, and R = -.335; p = .0072, respectively) but not to gender, body mass index (standard deviation score) or GH secretion. In the four patients with AVPD (CDI), baseline or stimulated copeptin was below the 2.5th percentile of non-AVPD (non-CDI) patients. CONCLUSIONS Stimulated copeptin is a promising parameter for the differential diagnosis of polyuria-polydipsia syndrome. However, the low copeptin increase after arginine and the high limit of quantification of the assay are problematic for use in paediatrics.
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Affiliation(s)
- Gerhard Binder
- Pediatric Endocrinology, University Children's Hospital Tübingen, Tübingen, Germany
| | - Karin Weber
- Pediatric Endocrinology, University Children's Hospital Tübingen, Tübingen, Germany
| | - Andreas Peter
- Department for Diagnostic Laboratory Medicine, Institute for Clinical Chemistry and Pathobiochemistry, University Hospital Tübingen, Tübingen, Germany
| | - Roland Schweizer
- Pediatric Endocrinology, University Children's Hospital Tübingen, Tübingen, Germany
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Hyperlactatemia and other perioperative metabolic disturbances in neuroanesthesia. Curr Opin Anaesthesiol 2022; 35:537-542. [PMID: 35942723 PMCID: PMC9594138 DOI: 10.1097/aco.0000000000001180] [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] [Indexed: 02/04/2023]
Abstract
PURPOSE OF REVIEW The concept of 'brain-body cross-talking' has gained growing interest in the last years. The understanding of the metabolic disturbances (e.g., hypernatraemia/hyponatraemia and hyperlactatemia) in neurosurgical patients has improved during the last years. RECENT FINDINGS The impact of elevated lactate without acidosis in neurosurgical patients remains controversial. The pathophysiology of inappropriate secretion of antidiuretic hormone (SIADH) has become clearer, whereas the diagnosis of cerebral salt wasting should be used more carefully. SUMMARY These findings will contribute to a better understanding of the pathophysiology involved and enable better prevention and therapy where possible in clinical practice.
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