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Endocrine Practice : Official Journal... Aug 2023Accurate diagnosis of diabetes insipidus (DI) is of significant importance for correct management. We aimed to evaluate the diagnostic accuracy of copeptin level... (Meta-Analysis)
Meta-Analysis Review
OBJECTIVE
Accurate diagnosis of diabetes insipidus (DI) is of significant importance for correct management. We aimed to evaluate the diagnostic accuracy of copeptin level measurements in the differential diagnosis between DI and primary polydipsia (PP).
METHODS
A literature search of electronic databases from January 1, 2005, to July 13, 2022, was performed. Primary studies that evaluated the diagnostic accuracy of copeptin concentration in patients with DI and PP were considered eligible. Two reviewers independently screened relevant articles and extracted data. The Quality Assessment of Diagnostic Accuracy Studies 2 tool was used to assess the quality of the included studies. The hierarchical summary receiver operating characteristic model and bivariate method were used.
RESULTS
Seven studies including 422 patients with polydipsia-polyuria syndrome were included; of the 422 patients, 189 (44.79%) presented with arginine vasopressin deficiency (AVP-D, cranial DI) and 212 (50.24%) with PP. The summary estimates of the diagnostic performance of stimulated copeptin to differentiate between PP and AVP-D were 0.93 (95% CI, 0.89-0.97) for sensitivity and 0.96 (95% CI, 0.88-1.00) for specificity. Baseline copeptin level showed high performance in identifying AVP resistance (nephrogenic DI), with a pooled sensitivity of 1.00 (95% CI, 0.82-1.00) and specificity of 1.00 (95% CI, 0.98-1.00); however, it showed little value in the differentiation between PP and AVP-D.
CONCLUSION
Copeptin level measurement is a useful tool for the differential diagnosis of patients with DI and PP. Stimulation before copeptin measurement is necessary in the diagnosis of AVP-D.
Topics: Humans; Diagnosis, Differential; Diabetes Insipidus; Glycopeptides; Diabetes Insipidus, Neurogenic; Diabetes Mellitus
PubMed: 37225043
DOI: 10.1016/j.eprac.2023.05.006 -
Pediatrics in Review Feb 2022
Topics: Child; Female; Humans; Polydipsia; Polyuria
PubMed: 35102404
DOI: 10.1542/pir.2020-003202 -
Journal of Clinical Neuroscience :... May 2023Primary suprasellar germinoma (PSG) is a rare malignant tumor of the central nervous system. This study aimed to explore the clinical characteristics, treatment...
Primary suprasellar germinoma (PSG) is a rare malignant tumor of the central nervous system. This study aimed to explore the clinical characteristics, treatment protocol, and prognosis of patients with PSG. This case series retrospectively analyzed the clinical data of patients with PSG in Tianjin Huanhu Hospital diagnosed between January 2016 and December 2021. Fifteen patients with an average age of 19.6 years were included, in which nine of them were males. The mean duration between initial symptoms and admission was 17.0 months. The mean follow-up was 40.8 months. Ten patients had polydipsia and polyuria, visual impairments were observed in 8 patients, and 2 cases (13.3%) had symptoms both from suprasellar and pineal regions. All 15 cases were histopathologically confirmed as germinoma through craniotomy or biopsy. Most patients (80%) underwent radiotherapy combined with chemotherapy. During follow-up, all the patients showed a reduction in tumor size, especially in the bifocal cases. Symptoms of polydipsia, polyuria, and visual impairment were markedly relieved to different degrees. All patients had recovered well at discharge. Patients with polydipsia and polyuria took desmopressin daily. A histological confirmation by open biopsy through craniotomy or endoscopic biopsy might be recommended for PSG to start the appropriate treatments. Patients with PSG will usually have a good prognosis, but attention should be paid to the treatment of endocrine deficiencies.
Topics: Male; Humans; Young Adult; Adult; Female; Brain Neoplasms; Retrospective Studies; Polyuria; Germinoma; Central Nervous System Neoplasms; Head and Neck Neoplasms
PubMed: 36963125
DOI: 10.1016/j.jocn.2023.03.007 -
Scandinavian Journal of Trauma,... May 2019Dysnatremias are common electrolyte disturbances with significant morbidity and mortality. In chronic dysnatremias a slow correction rate (<10 mmol/L/24 h) is... (Review)
Review
BACKGROUND
Dysnatremias are common electrolyte disturbances with significant morbidity and mortality. In chronic dysnatremias a slow correction rate (<10 mmol/L/24 h) is indicated to avoid neurological complications. In acute dysnatremias (occurring <48 h) a rapid correction rate may be indicated. Most guidelines do not differ between acute and chronic dysnatremias. In this review, we focus on the evidence-based treatment of acute dysnatremias.
METHODS
A literary search in PubMed and Embase. A total of 72 articles containing 79 cases were included, of which 12 cases were excluded due to lack of information.
RESULTS
Of 67 patients (70% women) with acute dysnatremia, 60 had hypo- and 7 had hypernatremia. All patients with hyper- and 88% with hyponatremia had a rapid correction rate (> 10 mmol/L/24 h). The median time of correction was 1 day in patients with hypo- and 2.5 days in patients with hypernatremia. The mortality was 7% in patients with hypo- and 29% in patients with hypernatremia.
INTERPRETATION
Severe acute dysnatremias have significant mortality and require immediate treatment. A rapid correction rate may be lifesaving and is not associated with neurological complications. Chronic dysnatremias, on the other hand, are often compensated and thus less severe. In these cases a rapid correction rate may lead to severe cerebral complications.
Topics: Acute Disease; Adult; Aged; Female; Hospitalization; Humans; Hypernatremia; Hyponatremia; Male; Middle Aged; Nervous System Diseases; Respiration, Artificial; Young Adult
PubMed: 31138251
DOI: 10.1186/s13049-019-0633-3 -
AACE Clinical Case Reports 2021Our objective is to describe how polydipsia and intake of nonsteroidal anti-inflammatory drugs (NSAIDs) after fasting while breastfeeding may result in acute symptomatic...
OBJECTIVE
Our objective is to describe how polydipsia and intake of nonsteroidal anti-inflammatory drugs (NSAIDs) after fasting while breastfeeding may result in acute symptomatic hyponatremia.
CASE REPORT
We present the case of a 24-year-old woman at 4 weeks postpartum who engaged in a 20-hour fast from both eating and drinking, during which she continued to breastfeed her newborn child. After ending her fast, she noted decreased milk supply. Attributing her decreased milk supply to dehydration, she then consumed 4 L of water with little salt and also took NSAIDs for a headache, which continued to worsen. Upon presentation to the emergency department, she was found to have a sodium level of 124 mEq/L (normal, 135-145 mEq/L) and a urine specific gravity of 1.015 (normal, 1.005 - 1.030). Thyroid function and cortisol level test results were normal. She was diagnosed with acute symptomatic hypovolemic hyponatremia. After 1 L of normal saline her sodium rapidly corrected to normal and her symptoms resolved. At 2 months of follow-up she was asymptomatic and had no further episodes of hyponatremia.
DISCUSSION
Due to the patient's gender and small body size, 4 L of water was sufficient to lower her serum sodium rapidly from normal to 124 mEq/L. She was unable to excrete this water due to a combination of hypovolemia-mediated arginine vasopressin and NSAID use.
CONCLUSION
Clinicians should be cognizant that reproductive-age women are uniquely susceptible to hyponatremia and dangerous sequelae therein. They should counsel fasting individuals, particularly lactating women, to consume solute as well as fluid after fasting.
PubMed: 34307843
DOI: 10.1016/j.aace.2021.02.005 -
Psychiatry Research Mar 2021Despite the clinical importance of polydipsia, no diagnostic criteria or severity scales that comprehensively assess this condition are available. Thus, we aimed to...
Despite the clinical importance of polydipsia, no diagnostic criteria or severity scales that comprehensively assess this condition are available. Thus, we aimed to develop diagnostic criteria and a severity scale for polydipsia based on a systematic review and well-experienced clinicians' consensus. We performed a systematic review, identified 27 studies related to diagnostic criteria or severity classification for polydipsia, and extracted items used to assess polydipsia in these studies. Ten well-experienced clinicians-5 psychiatrists and 5 nurses-participated in the Delphi method. They evaluated 39 items extracted based on the results of the systematic review regarding (1) their necessity in diagnosing and assessing the severity of polydipsia, and (2) their relative importance rated on 7-point scale among the items included in the severity scale. The Polydipsia Diagnostic Criteria (PDC) included 4 essential items-excessive drinking, low serum sodium level or low serum osmolality, abnormal normalized diurnal weight gain, and low urine specific gravity-based on consensus reached using the Delphi method. The Polydipsia Severity Scale (PSS) included 13 items with a maximum score of 59. The first diagnostic criteria and symptom scale for polydipsia were developed based on the findings of a systematic review and well-experienced clinicians' consensus.
Topics: Consensus; Humans; Osmolar Concentration; Polydipsia; Psychiatry; Severity of Illness Index
PubMed: 33461119
DOI: 10.1016/j.psychres.2021.113708 -
Mechanisms of hyponatremia and diabetes insipidus after acute spinal cord injury: a critical review.Chinese Neurosurgical Journal Nov 2023The incidence of hyponatremia after spinal cord injury was reported to be between 25 and 80%. Hyponatremia can lead to a variety of clinical symptoms, from mild to... (Review)
Review
The incidence of hyponatremia after spinal cord injury was reported to be between 25 and 80%. Hyponatremia can lead to a variety of clinical symptoms, from mild to severe and even life-threatening. Hyponatremia is often associated with diabetes insipidus, which refers to insufficient arginine vasopressin (AVP) secretion or defective renal response to AVP, with clinical manifestations of syndromes such as hypoosmolality, polydipsia, and polydipsia. Recent mechanistic studies on hyponatremia and diabetes insipidus after acute spinal cord injury have been performed in isolation, without integrating the above two symptoms into different pathological manifestations that occur in the same injury state and without considering the acute spinal cord injury patient's condition as a whole. The therapeutic principles of CSWS and SIADH are in opposition to one another. It is not easy to identify the mechanism of hyponatremia in clinical practice, which makes selecting the treatment difficult. According to the existing theories, treatments for hyponatremia and diabetes insipidus together are contraindicated, whether the mechanism of hyponatremia is thought to be CSWS or SIADH. In this paper, we review the mechanism of these two pathological manifestations and suggest that our current understanding of the mechanisms of hyponatremia and diabetes insipidus after high acute cervical SCI is insufficient, and it is likely that there are other undetected pathogenetic mechanisms.
PubMed: 37968769
DOI: 10.1186/s41016-023-00347-y -
Brain Sciences Dec 2022Cholinergic muscarinic stimulation of vast areas of the limbic brain induced a well-documented polydipsia in laboratory rats. This excessive water-drinking behavior has... (Review)
Review
Cholinergic muscarinic stimulation of vast areas of the limbic brain induced a well-documented polydipsia in laboratory rats. This excessive water-drinking behavior has not received any convincing biological and physiological interpretation for the last 50 years. This review offers such an interpretation and suggests that cholinergically induced drinking response, mostly by carbachol, is associated with activation of the ascending mesolimbic cholinergic system that serves for initiation of emotional aversive arousal of the organism. The ascending cholinergic system originates from the laterodorsal tegmental nucleus, has a diffuse nature, and affects numerous subcortical limbic structures. It is proposed that the carbachol-induced drinking response is related to the state of anxiety and does not serve the regulation of thirst. Instead, the response is anxiety-induced polydipsia that might occur as a soothing procedure that decreases the aversiveness of the negative emotional state induced by carbachol. It is concluded that carbachol-induced water-drinking behavior is a rewarding process that contributes to alleviating the feeling of anxiety by bringing some relief from the cholinergically induced aversive state, and it is a homologue to anxiety-driven polydipsia in humans.
PubMed: 36672042
DOI: 10.3390/brainsci13010060 -
Journal of the American Animal Hospital... 2018Three juvenile male Irish wolfhound littermates presented with marked polyuria and polydipsia. The four female siblings were apparently unaffected. Diagnostic testing...
Three juvenile male Irish wolfhound littermates presented with marked polyuria and polydipsia. The four female siblings were apparently unaffected. Diagnostic testing revealed glucosuria with normoglycemia, generalized aminoaciduria, hypokalemia and metabolic acidosis consistent with Fanconi syndrome. Renal ultrasonographic and histologic findings are presented. Cases were managed with a supplementation regimen based on a treatment protocol for Fanconi syndrome in basenjis. These dogs did not have angular limb deformities as documented previously in juvenile canine siblings with Fanconi syndrome. Fanconi syndrome has not been previously described in Irish wolfhound siblings.
Topics: Amino Acid Metabolism, Inborn Errors; Animals; Dog Diseases; Dogs; Fanconi Syndrome; Kidney; Male; Siblings
PubMed: 29558216
DOI: 10.5326/JAAHA-MS-6439 -
The Veterinary Record Jul 2019
Topics: Animals; Diagnosis, Differential; Dog Diseases; Dogs; Polydipsia; Polyuria
PubMed: 31346113
DOI: 10.1136/vr.l4865