Evidence map›Paper›PMID 35199305›Full record

ArticleNeurocritical care2022

Cerebrospinal Fluid and Arterial Acid-Base Equilibrium of Spontaneously Breathing Patients with Aneurismal Subarachnoid Hemorrhage.

Thomas Langer, Francesco Zadek, Marco Carbonara, Alessio Caccioppola, Serena Brusatori, Tommaso Zoerle, Francesco Bottazzini, Chiara Ferraris Fusarini, Adriana di Modugno, Alberto Zanella and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Neurocritical care, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Chloride ions in health and disease.Bioscience reports · 2024
    Review
  8. Cerebrospinal fluid pH regulation.Pflugers Archiv : European journal of physiology · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
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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

14 authors at 4 institutions in 1 country.

Thomas LangerDepartment of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy. Thomas.Langer@unimib.it.ORCID http://orcid.org/0000-0002-9725-8520
Francesco ZadekDepartment of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy.
Marco CarbonaraDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Alessio CaccioppolaDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Serena BrusatoriDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Tommaso ZoerleDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Francesco BottazziniDepartment of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Chiara Ferraris FusariniCentral Laboratory, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Adriana di ModugnoCentral Laboratory, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Alberto ZanellaDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Elisa R ZanierLaboratory of Acute Brain Injury and Therapeutic Strategies, Department of Neuroscience, Istituto Di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy.
Roberto FumagalliDepartment of Medicine and Surgery, University of Milan-Bicocca, Monza, Italy.
Antonio PesentiDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
Nino StocchettiDepartment of Pathophysiology and Transplantation, University of Milan, Milan, Italy.
University of Milan · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITAzienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda · ITMario Negri Institute for Pharmacological Research · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHyperventilation resulting in hypocapnic alkalosis (HA) is frequently encountered in spontaneously breathing patients with acute cerebrovascular conditions. The underlying mechanisms of this respiratory response have not been fully elucidated. The present study describes, applying the physical-chemical approach, the acid-base characteristics of cerebrospinal fluid (CSF) and arterial plasma of spontaneously breathing patients with aneurismal subarachnoid hemorrhage (SAH) and compares these results with those of control patients. Moreover, it investigates the pathophysiologic mechanisms leading to HA in SAH.

methodsPatients with SAH admitted to the neurological intensive care unit and patients (American Society of Anesthesiologists physical status of 1 and 2) undergoing elective surgery under spinal anesthesia were enrolled. CSF and arterial samples were collected simultaneously. Electrolytes, strong ion difference (SID), partial pressure of carbon dioxide (PCO

resultsTwenty spontaneously breathing patients with SAH and 25 controls were enrolled. The CSF of patients with SAH, as compared with controls, was characterized by a lower SID (23.1 ± 2.3 vs. 26.5 ± 1.4 mmol/L, p < 0.001) and PCO

conclusionsPatients with SAH have a reduction of CSF SID due to an increased lactate concentration. The resulting localized acidifying effect is compensated by CSF hypocapnia, yielding normal CSF pH values and resulting in a higher incidence of arterial HA.

Indexed as

Subarachnoid HemorrhageAcid-Base EquilibriumHumansLactatesPartial PressureLactatesAcid–base equilibriumBloodCerebrospinal fluidElectrolyte disturbancesSubarachnoid hemorrhage

Identifiers

PMID35199305
PMCPMC9283163
OpenAlexW4213433615

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Registered trials

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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.