Evidence map›Paper›PMID 26374600›Full record

ArticleNephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association2015

The effect of parathyroidectomy on patient survival in secondary hyperparathyroidism.

Kerstin M Ivarsson, Shahriar Akaberi, Elin Isaksson, Eva Reihnér, Rebecca Rylance, Karl-Göran Prütz, Naomi Clyne, Martin Almquist

Abstract read
In one paragraph

Article in Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Kerstin M IvarssonDepartment of Nephrology, Clinical Sciences Lund, Skåne, Sweden.
Shahriar AkaberiDepartment of Nephrology and Transplantation, Skane University Hospital Lund, Skåne, Sweden.
Elin IsakssonVO Urology, Division 4, Malmö, Sweden.
Eva ReihnérDepartment of Molecular Medicine and Surgery, Karolinska University Hospital, Stockholm, Sweden.
Rebecca RylanceNational Registry Centre, Skane University Hospital Lund, Skåne, Sweden.
Karl-Göran PrützDepartment of Internal Medicine, Helsingborg Hospital, Helsingborg, Sweden.
Naomi ClyneDepartment of Nephrology and Transplantation, Skane University Hospital Lund, Skåne, Sweden.
Martin AlmquistDepartment of Surgery Section of Endocrine and Sarcoma, Skane University Hospital, Lund, Skåne, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSecondary hyperparathyroidism is a common condition in patients with end-stage renal disease and is associated with osteoporosis and cardiovascular disease. Despite improved medical treatment, parathyroidectomy (PTX) is still necessary for many patients on renal replacement therapy. The aim of this study was to evaluate the effect of PTX on patient survival.

methodsA nested index-referent study was performed within the Swedish Renal Registry (SRR). Patients on maintenance dialysis and transplantation at the time of PTX were analysed separately. The PTX patients in each of these strata were matched for age, sex and underlying renal diseases with up to five referent patients who had not undergone PTX. To calculate survival time and hazard ratios, indexes and referents were assigned the calendar date (d) of the PTX of the index patient. The risk of death after PTX was calculated using crude and adjusted Cox proportional hazards regressions.

resultsThere were 20 056 patients in the SRR between 1991 and 2009. Of these, 579 (423 on dialysis and 156 with a renal transplant at d) incident patients with PTX were matched with 1234/892 non-PTX patients. The adjusted relative risk of death was a hazard ratio (HR) of 0.80 [95% confidence interval (CI) 0.65-0.99] for dialysis patients at d who had undergone PTX compared with matched patients who had not. Corresponding results for the patients with a renal allograft at d were an HR of 1.10 (95% CI 0.71-1.70).

conclusionsPTX was associated with improved survival in patients on maintenance dialysis but not in patients with renal allograft.

Indexed as

Kidney TransplantationAgedCohort StudiesFemaleHumansHyperparathyroidism, SecondaryIncidenceKidney Failure, ChronicMaleMiddle AgedParathyroidectomyProportional Hazards ModelsRegistriesRenal Replacement TherapyRisk FactorsSurvival Ratedialysisepidemiologyhyperparathyroidismkidney transplantationPTHsurvival analysis

Identifiers

PMID26374600
PMCPMC4832998

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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.