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Cardiovascular and Cerebrovascular Events After Parathyroidectomy in Patients on Renal Replacement Therapy

Ivarsson, Kerstin M. LU ; Akaberi, Shahriar LU ; Isaksson, Elin LU ; Reihnér, Eva ; Czuba, Tomasz LU ; Prütz, Karl Göran LU ; Clyne, Naomi LU orcid and Almquist, Martin LU (2019) In World Journal of Surgery 43(8). p.1981-1988
Abstract

Background: A majority of patients with end-stage renal disease suffer from secondary hyperparathyroidism, which is associated with osteoporosis and cardiovascular disease. Parathyroidectomy (PTX) is often necessary despite medical treatment. However, the effect of PTX on cardio- and cerebrovascular events (CVE) remains unclear. Data on the effect of PTX from population-based studies are scarce. Some studies have shown decreased incidence of CVE after PTX. The aim of this study was to evaluate the effect of PTX on risk of CVE in patients on renal replacement therapy. Methods: We performed a nested case–control study within the Swedish Renal Registry (SRR) by matching PTX patients on dialysis or with functioning renal allograft with up... (More)

Background: A majority of patients with end-stage renal disease suffer from secondary hyperparathyroidism, which is associated with osteoporosis and cardiovascular disease. Parathyroidectomy (PTX) is often necessary despite medical treatment. However, the effect of PTX on cardio- and cerebrovascular events (CVE) remains unclear. Data on the effect of PTX from population-based studies are scarce. Some studies have shown decreased incidence of CVE after PTX. The aim of this study was to evaluate the effect of PTX on risk of CVE in patients on renal replacement therapy. Methods: We performed a nested case–control study within the Swedish Renal Registry (SRR) by matching PTX patients on dialysis or with functioning renal allograft with up to five non-PTX controls for age, sex and underlying renal disease. To calculate time to CVE, i.e., myocardial infarct, stroke and transient ischemic attack, control patients were assigned the calendar date (d) of the PTX of the case patient. Crude and adjusted proportional hazards regressions with random effect (frailty) were used to calculate hazard ratios for CVE. Results: The study cohort included 20,056 patients in the SRR between 1991 and 2009. Among these, 579 patients had undergone PTX, 423 during dialysis and 156 during time with functioning renal allograft. These patients were matched with 1234 dialysis and 736 transplanted non-PTX patients. The adjusted hazard ratio (HR) with 95% confidence interval (CI) of CVE after PTX was 1.24 (1.03–1.49) for dialysis patients compared with non-PTX patients. Corresponding results for patients with renal allograft at d were HR (95% CI) 0.53 (0.34–0.84). Conclusions: PTX patients on dialysis at d had a higher risk of CVE than patients without PTX. Patients with renal allograft at d on the other had a lower risk after PTX than patients without PTX.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
World Journal of Surgery
volume
43
issue
8
pages
1981 - 1988
publisher
Springer
external identifiers
  • pmid:31087130
  • scopus:85065803095
ISSN
0364-2313
DOI
10.1007/s00268-019-05020-z
language
English
LU publication?
yes
id
da06f76f-93b1-4763-ad3f-48b8e6576369
date added to LUP
2019-05-29 12:39:06
date last changed
2024-03-03 10:19:28
@article{da06f76f-93b1-4763-ad3f-48b8e6576369,
  abstract     = {{<p>Background: A majority of patients with end-stage renal disease suffer from secondary hyperparathyroidism, which is associated with osteoporosis and cardiovascular disease. Parathyroidectomy (PTX) is often necessary despite medical treatment. However, the effect of PTX on cardio- and cerebrovascular events (CVE) remains unclear. Data on the effect of PTX from population-based studies are scarce. Some studies have shown decreased incidence of CVE after PTX. The aim of this study was to evaluate the effect of PTX on risk of CVE in patients on renal replacement therapy. Methods: We performed a nested case–control study within the Swedish Renal Registry (SRR) by matching PTX patients on dialysis or with functioning renal allograft with up to five non-PTX controls for age, sex and underlying renal disease. To calculate time to CVE, i.e., myocardial infarct, stroke and transient ischemic attack, control patients were assigned the calendar date (d) of the PTX of the case patient. Crude and adjusted proportional hazards regressions with random effect (frailty) were used to calculate hazard ratios for CVE. Results: The study cohort included 20,056 patients in the SRR between 1991 and 2009. Among these, 579 patients had undergone PTX, 423 during dialysis and 156 during time with functioning renal allograft. These patients were matched with 1234 dialysis and 736 transplanted non-PTX patients. The adjusted hazard ratio (HR) with 95% confidence interval (CI) of CVE after PTX was 1.24 (1.03–1.49) for dialysis patients compared with non-PTX patients. Corresponding results for patients with renal allograft at d were HR (95% CI) 0.53 (0.34–0.84). Conclusions: PTX patients on dialysis at d had a higher risk of CVE than patients without PTX. Patients with renal allograft at d on the other had a lower risk after PTX than patients without PTX.</p>}},
  author       = {{Ivarsson, Kerstin M. and Akaberi, Shahriar and Isaksson, Elin and Reihnér, Eva and Czuba, Tomasz and Prütz, Karl Göran and Clyne, Naomi and Almquist, Martin}},
  issn         = {{0364-2313}},
  language     = {{eng}},
  month        = {{05}},
  number       = {{8}},
  pages        = {{1981--1988}},
  publisher    = {{Springer}},
  series       = {{World Journal of Surgery}},
  title        = {{Cardiovascular and Cerebrovascular Events After Parathyroidectomy in Patients on Renal Replacement Therapy}},
  url          = {{http://dx.doi.org/10.1007/s00268-019-05020-z}},
  doi          = {{10.1007/s00268-019-05020-z}},
  volume       = {{43}},
  year         = {{2019}},
}