Evidence map›Paper›PMID 40084913›Full record

Trial reportNeuro-oncology2025

Postoperative fluid restriction to prevent delayed hyponatremia after endoscopic transsphenoidal surgery.

Doriann Klaassen, Shinghei Mok, Jenie Y Hwang, Sydney L Blount, Kelley J Williams, Brendan M Fong, Michael R Chicoine, Ralph G Dacey, Nyssa F Farrell, Joshua W Osbun and 7 more

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Neuro-oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03636568 (Early Fluid Restriction to Prevent Delayed Hyponatremia Following Pituitary Surgery), which is not on this map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03636568 nacompletednot on this map

Early Fluid Restriction to Prevent Delayed Hyponatremia Following Pituitary Surgery

TypeinterventionalSponsorWashington University School of MedicineRan2016 to 2024Enrolled300ConditionsHyponatremia, Hyponatremic, Pituitary Tumor, PituitaryArmsFluid Restricted Group
3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Doriann KlaassenDivision of Endocrinology, Metabolism, and Lipid Research, Washington University School of Medicine, St. Louis, Missouri, USA.
Shinghei MokDepartment of Neurological Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.
Jenie Y HwangDepartment of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.
Sydney L BlountDivision of Diabetes, Endocrinology and Metabolism, and Metabolism, University of Nebraska Medical Center, Omaha, Nebraska, USA.
Kelley J WilliamsDivision of Endocrinology, Metabolism, and Lipid Research, Washington University School of Medicine, St. Louis, Missouri, USA.
Brendan M FongDepartment of Neurosurgery, Neurosurgery of Saint Louis, St. Louis, Missouri, USA.
Michael R ChicoineDepartment of Neurological Surgery, University of Missouri-Columbia, Columbia, Missouri, USA.
Ralph G DaceyDepartment of Neurological Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.
Nyssa F FarrellDepartment of Otolaryngology-Head and Neck Surgery, Washington University in St Louis, St. Louis, Missouri, USA.
Joshua W OsbunDepartment of Neurological Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.
Keith M RichDepartment of Neurological Surgery, Washington University School of Medicine, St. Louis, Missouri, USA.
Lauren T RolandDepartment of Otolaryngology-Head and Neck Surgery, Washington University in St Louis, St. Louis, Missouri, USA.
John S SchneiderDepartment of Otolaryngology-Head and Neck Surgery, Washington University in St Louis, St. Louis, Missouri, USA.
Gregory J ZipfelDepartment of Otolaryngology-Head and Neck Surgery, Washington University in St Louis, St. Louis, Missouri, USA.
Chongliang LuoDivision of Public Health Sciences, Washington University School of Medicine, St. Louis, Missouri, USA.
Albert H KimThe Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri, USA.ORCID 0000-0002-1751-8493
Julie M SilversteinThe Brain Tumor Center, Siteman Cancer Center, Washington University School of Medicine, St. Louis, Missouri, USA.

Funding

DIABETES &RELATED METABOLIC DISEASEST32DK007120 · NIDDK · WASHINGTON UNIVERSITY · PI MARCO COLONNA, Maria Sara Remedi · 1986 to 2026
$15.7M
NIDDK NIH HHS T32 DK007120School of Medicine
6 · The paper itself

Abstract

backgroundReadmission following endoscopic endonasal transsphenoidal surgery (EETS) for pituitary neuroendocrine tumor (PitNET) and other sellar pathology is most commonly due to delayed hyponatremia. Studies suggest postoperative fluid restriction (FR) reduces delayed hyponatremia. We present a prospective randomized controlled study evaluating post-EETS FR.

methods300 participants were scheduled for EETS (2016-2023) at a single institution. Patients with CKD, CHF, arginine vasopressin deficiency on postoperative day (POD) 3, chronic hyponatremia, and untreated adrenal insufficiency or hypothyroidism were excluded. Groups included control (ad-lib, n = 94), moderate FR (1.8 L/day or 2 L/day weight > 100 kg, n = 39), and strict FR (1 L/day or 1.2 L/day weight > 100 kg, n = 62) from POD 3-14. Incidence of overall, moderate, and severe hyponatremia (Na < 135, 125-129, and <125 mEq/L), readmission rates, fluid intake, and thirst were evaluated.

resultsThe incidence of overall hyponatremia was 31.9%, 28.2%, and 21.0% in control, moderate FR, and strict FR groups, and the incidence of severe hyponatremia was 7.4%, 5.1%, and 0% in control, moderate FR, and strict FR groups. Nadir Na level was higher (1.81 mEq/L; 95% CI, 0.34 to 3.27; P = .02) and severe hyponatremia occurred less frequently (95% CI, 0.00 to 1.02; P = .04) in the strict FR vs. control group. Readmission was lower in the strict FR (1.6%, n = 1) vs. control group (6.4%, n = 6).

conclusionsPostoperative FR decreases rates of delayed hyponatremia and related readmission compared to patients drinking ad-lib. Further studies are needed to assess the optimal volume and duration of FR after EETS. Trial registration number: NCT03636568.

Indexed as

EndoscopyHyponatremiaNeuroendocrine TumorsPituitary NeoplasmsPostoperative CarePostoperative ComplicationsAdultAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedPatient ReadmissionPrognosisProspective Studiesendoscopic endonasal transsphenoidal surgeryfluid restrictionhyponatremiapituitary adenomapituitary neuroendocrine tumor

Identifiers

PMID40084913
PMCPMC12417837

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.