Background: Hyperthyroid cats that are azotemic and hypothyroid after surgical or medical treatment have poor outcomes, and supplementation with levothyroxine (LT4) improves survival. However, the effect of LT4 supplementation on survival of nonazotemic, hypothyroid radioiodine (RI)-treated hyperthyroid cats is unknown.
Hypothesis: Radioiodine treated hyperthyroid cats with iatrogenic hypothyroidism or azotemia have shorter survival times than euthyroid, nonazotemic cats and supplementation of LT4 improves survival times of hypothyroid cats.
Animals: One hundred seventeen RI treated hyperthyroid cats.
Methods: Prospective cohort study. Radioiodine treated cats were screened for azotemia and iatrogenic hypothyroidism using TSH stimulation test; LT4 supplementation was offered to all hypothyroid cats with decision to treat based on owner preference. The log rank test was used to compare survival times between groups, and the Mann-Whitney U test was used to compare age and renal variables. Data are presented as median [range].
Results: Euthyroid azotemic cats (934 [759-2035] days) and nonsupplemented hypothyroid cats (azotemic and nonazotemic combined, 1232 [238-2363] days) had shorter survival times than euthyroid nonazotemic cats (1616 [663-3369] days, P = .003 and P = .002, respectively). Levothyroxine supplemented hypothyroid nonazotemic cats had longer survival times than nonsupplemented hypothyroid nonazotemic cats (1037 [300-2401] days vs 768 [34-1014] days; P = .027). Levothyroxine supplementation was not associated with prolonged survival times in hypothyroid azotemic cats vs nonsupplemented hypothyroid azotemic cats (771 [718-1558] days vs 152 [82-1852] days, respectively, P = .991).
Conclusions And Clinical Importance: Levothyroxine supplementation in nonazotemic cats with iatrogenic hypothyroidism (diagnosed based on TSH stimulation test results) improved survival times, although randomized controlled trials are needed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/jvim.17295 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of Intravenous Hydroxyzine Versus Haloperidol Monotherapy for Delirium: A Retrospective Study.
J Clin Psychiatry
January 2025
Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan, Division of Drug Informatics, Keio University Faculty of Pharmacy, Tokyo, Japan.
Although antipsychotics are used commonly for delirium, they increase the risk of mortality in elderly patients and those with dementia. As hydroxyzine has sedative and anxiolytic effects, it can be used in the treatment of delirium. We performed a retrospective study to compare the effects of intravenous hydroxyzine and haloperidol monotherapy on delirium.
View Article and Find Full Text PDFMortality and reoperations following treatment of acetabular fractures in patients ≥ 70 years: a retrospective cohort study of 247 patients.
Acta Orthop
January 2025
Department of Surgical Sciences, Section for Orthopaedics, Uppsala University, Uppsala, Sweden.
Background And Purpose: Evidence for long-term outcomes following acetabular fractures in older adults is limited. We aimed to evaluate mortality, complications, and need for subsequent surgical procedures in operatively and nonoperatively treated older patients with acetabular fractures.
Methods: Patients aged ≥ 70 years with acetabular fractures treated at Uppsala University Hospital between 2010 and 2020 were included.
Suspected heparin-induced thrombocytopaenia in pulmonary thromboendarterectomy: retrospective cohort.
Interdiscip Cardiovasc Thorac Surg
January 2025
Department of Thoracic Surgery and Heart-Lung Transplantation, Paris-Saclay University, Marie-Lannelongue Hospital, 92350, Le Plessis-Robinson, France.
Objectives: Heparin is given for anticoagulation during and after pulmonary thromboendarterectomy for chronic thromboembolic pulmonary hypertension. Our objective was to add to the limited data available on the incidence, management, and outcomes of suspected heparin-induced thrombocytopaenia after pulmonary thromboendarterectomy for chronic thromboembolic pulmonary hypertension.
Methods: This retrospective single-centre study included consecutive patients with suspected heparin-induced thrombocytopaenia after pulmonary thromboendarterectomy done in 2005-2018.
Revisiting ascending aortic resection in the elective valve-sparing root replacement: assessing the benefits and necessity of hemiarch replacement at three centres.
Eur J Cardiothorac Surg
January 2025
Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Philadelphia, PA, USA.
Objectives: The aim of this study was to determine the indication and optimal timing for performing a hemiarch procedure in patients undergoing valve-sparing root replacement (VSRR).
Methods: We conducted a retrospective study on 986 patients undergoing VSRR at three tertiary care centres. Inclusion criteria were all patients undergoing elective VSRR.
Ventriculoperitoneal shunt in the treatment of cryptococcal meningitis with intracranial hypertension.
J Infect Dev Ctries
December 2024
Department of Neurosurgery, The third affiliated hospital, Sun Yat-Sen University, Guangzhou, China.
Introduction: Cryptococcal meningitis (CM) combined with intracranial hypertension is associated with a poor prognosis. This study aimed to investigate the therapeutic efficacy and prognostic factors of ventriculoperitoneal (VP) shunt in non-human immunodeficiency virus (HIV) CM patients with intracranial hypertension.
Methodology: A total of 136 non-HIV CM patients with intracranial hypertension treated in our hospital from July 2010 to December 2019 were retrospectively included.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!