Evidence map›Paper›PMID 31339558›Full record

ArticleThe British journal of surgery2019

Mortality after liver surgery in Germany.

N Filmann, D Walter, E Schadde, C Bruns, T Keck, H Lang, K Oldhafer, H J Schlitt, M R Schön, E Herrmann and 2 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in The British journal of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 5 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

66 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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  13. [Centralization of liver surgery in Germany].Chirurgie (Heidelberg, Germany) · 2026
    Review
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  16. International Benchmark Values for Robotic Right Hepatectomy: Multicenter Study From 22 Expert Centers.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2025
    Article
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6 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

N FilmannInstitute of Biostatistics and Mathematical Modelling, Frankfurt University Hospital, Goethe-University Frankfurt/Main, Frankfurt/Main, Germany.
D WalterDepartment of Medicine I, Frankfurt University Hospital, Goethe-University Frankfurt/Main, Frankfurt/Main, Germany.
E SchaddeDepartment of Surgery, Rush University Medical Center, Chicago, Illinois, USA.ORCID 0000-0003-4561-6469
C BrunsDepartment of General, Visceral and Cancer Surgery, University of Cologne, Cologne, Germany.
T KeckDepartment of Surgery, University Medical Centre Schleswig-Holstein, Campus Luebeck, Luebeck, Germany.
H LangDepartment of General, Visceral and Transplant Surgery, Universitaetsmedizin Mainz, Mainz, Germany.
K OldhaferSemmelweis University, Budapest, Campus Hamburg, Hamburg, Germany.
H J SchlittDepartment of Surgery, University Hospital Regensburg, Regensburg, Germany.
M R SchönClinic of Visceral Surgery, Städtisches Klinikum Karlsruhe, Karlsruhe, Germany.
E HerrmannInstitute of Biostatistics and Mathematical Modelling, Frankfurt University Hospital, Goethe-University Frankfurt/Main, Frankfurt/Main, Germany.
W O BechsteinDepartment of General and Visceral Surgery, Frankfurt University Hospital, Goethe-University Frankfurt/Main, Frankfurt/Main, Germany.
A A SchnitzbauerDepartment of General and Visceral Surgery, Frankfurt University Hospital, Goethe-University Frankfurt/Main, Frankfurt/Main, Germany.ORCID 0000-0003-1527-1877

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMortality rates after liver surgery are not well documented in Germany. More than 1000 hospitals offer liver resection, but there is no central regulation of infrastructure requirements or outcome quality.

methodsHospital mortality rates after liver resection were analysed using the standardized hospital discharge data (Diagnosis-Related Groups, ICD-10 and German operations and procedure key codes) provided by the Research Data Centre of the Federal Statistical Office and Statistical Offices of the Länder in Wiesbaden, Germany.

resultsA total of 110 332 liver procedures carried out between 2010 and 2015 were identified. The overall hospital mortality rate for all resections was 5·8 per cent. The mortality rate among 17 574 major hepatic procedures was 10·4 per cent. Patients who had surgery for colorectal liver metastases (CRLMs) had the lowest mortality rate among those with malignancy (5·5 per cent), followed by patients with gallbladder cancer (7·1 per cent), hepatocellular carcinoma (9·3 per cent) and intrahepatic cholangiocarcinoma (11·0 per cent). Patients with extrahepatic cholangiocarcinoma had the highest mortality rate (14·6 per cent). The mortality rate for extended hepatectomy was 16·2 per cent and the need for a biliodigestive anastomosis increased this to 25·5 per cent. Failure to rescue after complications led to mortality rates of more than 30 per cent in some subgroups. There was a significant volume-outcome relationship for CRLM surgery in very high-volume centres (mean 26-60 major resections for CRLMs per year). The mortality rate was 4·6 per cent in very high-volume centres compared with 7·5 per cent in very low-volume hospitals (odds ratio 0·60, 95 per cent c.i. 0·42 to 0·77; P < 0·001).

conclusionThis analysis of outcome data after liver resection in Germany suggests that hospital mortality remains high. There should be more focused research to understand, improve or justify factors leading to this result, and consideration of centralization of liver surgery.

Indexed as

AdultAgedBile Duct NeoplasmsCarcinoma, HepatocellularCholangiocarcinomaFemaleGermanyHepatectomyHospital MortalityHospitals, High-VolumeHospitals, Low-VolumeHumansLiver NeoplasmsMaleMiddle AgedPostoperative Complications

Identifiers

PMID31339558

What OpenQuestion holds

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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.