Evidence map›Paper›PMID 39215778›Full record

ArticleObesity surgery2025

Causes of Death After Bariatric Surgery: Long-Term Study of 10 Years.

Nathaniel Rookes, Oday Al-Asadi, Sashi Yeluri, Peter Vasas, Nehemiah Samuel, Srinivasan Balchandra, Abdulzahra Hussain

Abstract read
In one paragraph

Article in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–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.

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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Volume‒outcome relationships in bariatric surgery: a rapid review.International journal of obesity (2005) · 2026
    Pooled it
  2. Article
  3. 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

7 authors.

Nathaniel RookesMedical School, University of Sheffield, Sheffield, UK.
Oday Al-AsadiHomerton University Hospital, London, UK.
Sashi YeluriDoncaster Royal Infirmary, Doncaster, UK.
Peter VasasDoncaster Royal Infirmary, Doncaster, UK.
Nehemiah SamuelDoncaster Royal Infirmary, Doncaster, UK.
Srinivasan BalchandraDoncaster Royal Infirmary, Doncaster, UK.
Abdulzahra HussainMedical School, University of Sheffield, Sheffield, UK. azahrahussain@yahoo.com.ORCID 0000-0001-9956-0291

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a lack of up-to-date research addressing the causes of death and predictors of long-term mortality after bariatric surgery.

methodsThis was a single-centre retrospective study. Trust records were used to identify deceased patients and their medical history. The demographic data, comorbidities, cause of death, and time since surgery were retrieved and tabulated. Data was recoded to allow for use in IBM SPSS.

resultsThere were 39 deaths amongst 891 patients who underwent bariatric surgery between 15th June 2010 to 18th September 2022. The main cause of death was pneumonia and respiratory causes with 15.4% of the cohort. A history of asthma/COPD had an association with the cause of death (p = 0.021). A history of hypertension, ischaemic heart disease (IHD), and smoking were all associated with a higher age at death, whilst a history of IHD was associated with a higher number of days from operation to death. Age at operation and number of comorbidities both correlated with age at death, and multiple linear regression of age at death with age at operation and number of comorbidities as predictors was significant (p < 0.001). A Cox regression found age at operation to have a significant effect on survival, with a hazard ratio of 1.063 (95% CI:1.027 to 1.100, p < 0.001).

conclusionPneumonia and respiratory causes are the largest causes of long-term mortality after bariatric surgery. The only factor found to have a detrimental effect on all-cause mortality was age at operation which reduced survival. Hypertension, IHD, and smoking are indirect factors that are associated with mortality.

Indexed as

Bariatric SurgeryCause of DeathObesity, MorbidAdultAgedComorbidityFemaleHumansMaleMiddle AgedPneumoniaPostoperative ComplicationsRetrospective StudiesRisk FactorsBody mass indexGlucagon-like peptide 1 receptor antagonistLaparoscopic adjustable gastric band (LAGB)Laparoscopic sleeve gastrectomy (LSG)One anastomosis gastric bypassRoux-en-Y gastric bypassType 2 diabetes mellitus

Identifiers

PMID39215778
PMCPMC11717799

What Socratic holds

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LicenceCC BY
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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 Socratic graph.