Evidence map›Paper›PMID 30062467›Full record

ArticleObesity surgery2018

Hair Loss After Laparoscopic Sleeve Gastrectomy.

Georgia Katsogridaki, George Tzovaras, Eleni Sioka, Konstantinos Perivoliotis, Eleni Zachari, Dimitrios Magouliotis, Vasiliki Tasiopoulou, Christina Chatedaki, Dimitrios Zacharoulis

Abstract read
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In one paragraph

Article in Obesity surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 3 pooled it
1.4field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 3 syntheses or guidelines pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Iron, Vitamin BObesity surgery · 2020 · on this map
    Pooled it
  4. Review
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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

9 authors at 1 institution in 1 country.

Georgia KatsogridakiDepartment of Surgery, University Hospital of Larissa, University of Thessaly, Viopolis, 41110, Larissa, Greece.
George TzovarasDepartment of Surgery, University Hospital of Larissa, University of Thessaly, Viopolis, 41110, Larissa, Greece.
Eleni SiokaDepartment of Surgery, Iaso Thessalias, Larissa, Greece.
Konstantinos PerivoliotisDepartment of Surgery, University Hospital of Larissa, University of Thessaly, Viopolis, 41110, Larissa, Greece.
Eleni ZachariDepartment of Surgery, Iaso Thessalias, Larissa, Greece.
Dimitrios MagouliotisDepartment of Surgery, University Hospital of Larissa, University of Thessaly, Viopolis, 41110, Larissa, Greece.
Vasiliki TasiopoulouDepartment of Surgery, University Hospital of Larissa, University of Thessaly, Viopolis, 41110, Larissa, Greece.
Christina ChatedakiDepartment of Microbiology, Iaso Thessalias, Larissa, Greece.
Dimitrios ZacharoulisDepartment of Surgery, University Hospital of Larissa, University of Thessaly, Viopolis, 41110, Larissa, Greece. zachadim@yahoo.com.ORCID http://orcid.org/0000-0003-0107-3976
University of Thessaly · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimThe aim of this study was to evaluate the prevalence of hair loss after laparoscopic sleeve gastrectomy (LSG). The effects of variables on the likelihood that patients developed hair loss were also examined. MATERIAL AND

methodsFifty patients who underwent LSG were enrolled in this prospective study. Demographics, hematocrit, iron, zinc, folic acid, vitamin B12, total proteins, and albumin were evaluated preoperatively and 6 months postoperatively.

resultsHair loss was observed in 56% of patients and particularly in 46% in females and in 10% in males. Analysis of variance indicated statistical differences for hair loss among the groups with and without hair loss concerning preoperative zinc (p < 0.001), postoperative zinc (p < 0.001), preoperative B12 (p < 0.001), postoperative B12 (p < 0.001), postoperative folic acid (p = 0.039), and postoperative use of supplements (p < 0.001). Patients with hair loss had lower values of zinc preoperatively and postoperatively compared to patients without hair loss (0.61 vs 0.81 mcg/ml) (0.46 vs 0.73 mcg/ml) and also lower values of vitamin B12 preoperatively and postoperatively compared to patients without hair loss (243.04 vs 337.41 pg/ml) (261.54 vs 325.68 pg/ml). Interestingly, the zinc levels were normal preoperatively and lower to normal levels postoperatively and the levels of vitamin B12 were lower than normal values preoperatively in patients with hair loss. Patients with hair loss had mean lower levels of postoperative folic acid of 8 ng/ml.

conclusionThe prevalence of hair loss was 56% 6 months after LSG. Preoperative monitoring and counseling of these micronutrients may be a preventive and therapeutic measure.

Indexed as

AdultAlopeciaDietary SupplementsFemaleFolic AcidGastrectomyHumansIronLaparoscopyMaleMicronutrientsMiddle AgedObesity, MorbidPostoperative ComplicationsPrevalenceProspective StudiesFolic AcidIronMicronutrientsVitamin B 12ZincBariatric surgeryHair lossLaparoscopic sleeve gastrectomyNutritionObesityObesity surgeryZinc

Identifiers

PMID30062467
OpenAlexW2885919954

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.