Evidence map›Paper›PMID 33955261›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2021

Case Studies in Physiology: Untangling the cause of hypoxemia in a patient with obesity with acute leukemia.

Iliya Amaza, Hardik Kalra, Michael Eberlein, Yogesh Jethava, Joseph McDonell, Bobby Wolfe, Michael H Tomasson, Melissa L Bates

Open access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 35% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
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

8 authors at 1 institution in 1 country.

Iliya AmazaDepartment of Internal Medicine, Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa, Iowa City, Iowa.
Hardik KalraDepartment of Health and Human Physiology, University of Iowa, Iowa City, Iowa.
Michael EberleinDepartment of Internal Medicine, Division of Pulmonary, Critical Care, and Occupational Medicine, University of Iowa, Iowa City, Iowa.
Yogesh JethavaDepartment of Internal Medicine, Division of Hematology, Oncology, and Bone Marrow Transplant, University of Iowa, Iowa City, Iowa.
Joseph McDonellDepartment of Health and Human Physiology, University of Iowa, Iowa City, Iowa.
Bobby WolfeDepartment of Surgery, University of Iowa, Iowa City, Iowa.
Michael H TomassonDepartment of Internal Medicine, Division of Hematology, Oncology, and Bone Marrow Transplant, University of Iowa, Iowa City, Iowa.
Melissa L BatesDepartment of Internal Medicine, Division of Hematology, Oncology, and Bone Marrow Transplant, University of Iowa, Iowa City, Iowa.ORCID 0000-0002-2605-0984
University of Iowa · US

Funding

Viral VectorP30CA086862 · NCI · UNIVERSITY OF IOWA · PI Douglas Robert Spitz · 2000 to 2026
$70.0M
The University of Iowa Clinical and Translational Science AwardUL1TR002537 · NCATS · UNIVERSITY OF IOWA · PI HANSEN, MARLAN R, WINOKUR, PATRICIA · 2018 to 2022
$20.0M
NCATS NIH HHS UL1 TR002537NCI NIH HHS P30 CA086862NIH HHS P30CA086862
6 · The paper itself

Abstract

Diagnosing the cause of hypoxemia and dyspnea can be complicated in complex patients with multiple comorbidities. This "Case Study in Physiology" describes an man with obesity admitted to the hospital for relapse of acute lymphoblastic leukemia, who experienced progressive hypoxemia, shortness of breath, and dyspnea on exertion during his hospitalization. After initial empirical treatment with diuresis and antibiotics failed to improve his symptoms and because an arterial blood gas measurement was not readily available, we applied a novel, recently described physiological method to estimate the arterial partial pressure of oxygen from the peripheral saturation measurement and calculate the alveolar-arterial oxygen difference to discern the source of his hypoxemia and dyspnea. Using basic physiological principles, we describe how hypoventilation, anemia, and the use of a β blocker and furosemide, collaborated to create a "perfect storm" in this patient that impaired oxygen delivery and limited utilization. This case illustrates the application of innovative physiology methodology in medicine and provides a strong rationale for continuing to integrate physiology education in medical education.

Indexed as

HypoxiaLeukemiaHumansMaleObesityOxygenPartial PressureOxygenA-aDO2blood cancerHill equationobesity hypoventilation syndromephysiology education

Identifiers

PMID33955261
PMCPMC8409924
OpenAlexW3157315652

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.