Evidence map›Paper›PMID 29998393›Full record

ArticleSurgical endoscopy2019

Preoperative anemia: a common finding that predicts worse outcomes in patients undergoing primary hiatal hernia repair.

Guillaume S Chevrollier, Andrew M Brown, Scott W Keith, Joanne Szewczyk, Michael J Pucci, Karen A Chojnacki, Ernest L Rosato, Francesco Palazzo

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2019. 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
0.9field-weighted citation impact, top 24% 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, 7 citations in OpenAlex.

  1. One-year outcomes of biological mesh in hiatal hernia repair: a real-world study.Hernia : the journal of hernias and abdominal wall surgery · 2025
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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

8 authors at 1 institution in 1 country.

Guillaume S ChevrollierDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA.
Andrew M BrownDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA.
Scott W KeithDepartment of Biostatistics, Thomas Jefferson University, Philadelphia, PA, USA.
Joanne SzewczykDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA.
Michael J PucciDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA.
Karen A ChojnackiDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA.
Ernest L RosatoDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA.
Francesco PalazzoDepartment of Surgery, Sidney Kimmel Medical College of Thomas Jefferson University, 1100 Walnut St. 5th Floor, Philadelphia, PA, 19107, USA. Francesco.Palazzo@Jefferson.edu.
Thomas Jefferson University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe increased incidence of anemia in patients with hiatal hernias (HH) and resolution of anemia after HH repair (HHR) have been clearly demonstrated. However, the implications of preoperative anemia on postoperative outcomes have not been well described. In this study, we aimed to identify the incidence of preoperative anemia in patients undergoing primary HHR at our institution and sought to determine whether preoperative anemia had an impact on postoperative outcomes.

methodsUsing our IRB-approved institutional HH database, we retrospectively identified patients undergoing primary HHR between January 2011 and April 2017 at our institution. We identified patients with anemia, defined as serum hemoglobin levels less than 13 mg/dL in men and 12 mg/dL in women, measured within two weeks prior to surgery, and compared this group to a cohort of patients with normal preoperative hemoglobin. Perioperative outcomes analyzed included estimated blood loss (EBL), operative time, perioperative blood transfusions, failed postoperative extubation, intensive care unit (ICU) admission, postoperative complications, length of stay (LOS), and 30-day readmission. Outcomes were compared by univariable and multivariable analyses, with significance set at p < 0.05.

resultsWe identified 263 patients undergoing HHR. The median age was 66 years and most patients were female (78%, n = 206). Seventy patients (27%) were anemic. In unadjusted analyses, anemia was significantly associated with failed postoperative extubation (7 vs. 2%, p = 0.03), ICU admission (13 vs. 5%, p = 0.03), postoperative blood transfusions (9 vs. 0%, p < 0.01), and postoperative complications (41 vs. 18%, p < 0.01). On adjusted multivariable analysis, anemia was associated with 2.6-fold greater odds of postoperative complications (OR 2.57; 95% CI 1.36-4.86; p < 0.01).

conclusionsIn this study, anemia had a prevalence of 27% in patients undergoing primary HHR. Anemic patients had 2.6-fold greater odds of developing postoperative complications. Anemia is common in patients undergoing primary HHR and warrants consideration for treatment prior to elective repair.

Indexed as

HerniorrhaphyPostoperative ComplicationsAgedAnemiaFemaleHemoglobinsHernia, HiatalHumansIncidenceLength of StayMaleMiddle AgedOperative TimePreoperative PeriodPrevalenceRetrospective StudiesHemoglobinsAnemiaCameron lesionsCameron ulcersHiatal herniaHiatal hernia repairParaesophageal hernia

Identifiers

PMID29998393
OpenAlexW2849749362

What OpenQuestion holds

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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.