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Björklund J, Rautiola J, Zelic R, Edgren G, Bottai M, Nilsson M, Vincent PH, Fredholm H, Falconer H, Sjövall A, Nilsson PJ, Wiklund P, Aly M, Akre O. Risk of Venous Thromboembolic Events After Surgery for Cancer. JAMA Netw Open 2024; 7:e2354352. [PMID: 38306100 PMCID: PMC10837742 DOI: 10.1001/jamanetworkopen.2023.54352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/11/2023] [Indexed: 02/03/2024] Open
Abstract
Importance The risks and benefits of thromboprophylaxis therapy after cancer surgery are debated. Studies that determine thrombosis risk after cancer surgery with high accuracy are needed. Objectives To evaluate 1-year risk of venous thromboembolic events after major cancer surgery and how these events vary over time. Design, Setting, and Participants This register-based retrospective observational matched cohort study included data on the full population of Sweden between 1998 and 2016. All patients who underwent major surgery for cancer of the bladder, breast, colon or rectum, gynecologic organs, kidney and upper urothelial tract, lung, prostate, or gastroesophageal tract were matched in a 1:10 ratio with cancer-free members of the general population on year of birth, sex, and county of residence. Data were analyzed from February 13 to December 5, 2023. Exposure Major surgery for cancer. Main Outcomes and Measures The main outcome was incidence of venous thromboembolic events within 1 year after the surgery. Crude absolute risks and risk differences of events within 1 year and adjusted time-dependent cause-specific hazard ratios (HRs) of postdischarge events were calculated. Results A total of 432 218 patients with cancer (median age, 67 years [IQR, 58-75 years]; 68.7% women) and 4 009 343 cancer-free comparators (median age, 66 years [IQR, 57-74 years]; 69.3% women) were included in the study. The crude 1-year cumulative risk of pulmonary embolism was higher among the cancer surgery population for all cancers, with the following absolute risk differences: for bladder cancer, 2.69 percentage points (95% CI, 2.33-3.05 percentage points); for breast cancer, 0.59 percentage points (95% CI 0.55-0.63 percentage points); for colorectal cancer, 1.57 percentage points (95% CI, 1.50-1.65 percentage points); for gynecologic organ cancer, 1.32 percentage points (95% CI, 1.22-1.41 percentage points); for kidney and upper urinary tract cancer, 1.38 percentage points (95% CI, 1.21-1.55 percentage points); for lung cancer, 2.61 percentage points (95% CI, 2.34-2.89 percentage points); for gastroesophageal cancer, 2.13 percentage points (95% CI, 1.89-2.38 percentage points); and for prostate cancer, 0.57 percentage points (95% CI, 0.49-0.66 percentage points). The cause-specific HR of pulmonary embolism comparing patients who underwent cancer surgery with matched comparators peaked just after discharge and generally plateaued 60 to 90 days later. At 30 days after surgery, the HR was 10 to 30 times higher than in the comparison cohort for all cancers except breast cancer (colorectal cancer: HR, 9.18 [95% CI, 8.03-10.50]; lung cancer: HR, 25.66 [95% CI, 17.41-37.84]; breast cancer: HR, 5.18 [95% CI, 4.45-6.05]). The hazards subsided but never reached the level of the comparison cohort except for prostate cancer. Similar results were observed for deep vein thrombosis. Conclusions and Relevance This cohort study found an increased rate of venous thromboembolism associated with cancer surgery. The risk persisted for about 2 to 4 months postoperatively but varied between cancer types. The increased rate is likely explained by the underlying cancer disease and adjuvant treatments. The results highlight the need for individualized venous thromboembolism risk evaluation and prophylaxis regimens for patients undergoing different surgery for different cancers.
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Affiliation(s)
- Johan Björklund
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Juhana Rautiola
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Renata Zelic
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Gustaf Edgren
- Clinical Epidemiology Division, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Cardiology, Södersjukhuset, Stockholm, Sweden
| | - Matteo Bottai
- Division of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Magnus Nilsson
- Division of Surgery and Oncology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Per Henrik Vincent
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Hanna Fredholm
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Henrik Falconer
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
- Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
| | - Annika Sjövall
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Per J. Nilsson
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Peter Wiklund
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Markus Aly
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
| | - Olof Akre
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden
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Ni Y, Deng P, Yin R, Zhu Z, Ling C, Ma M, Wang J, Li S, Liu R. Effect and mechanism of paclitaxel loaded on magnetic Fe 3O 4@mSiO 2-NH 2-FA nanocomposites to MCF-7 cells. Drug Deliv 2023; 30:64-82. [PMID: 36474448 PMCID: PMC9744220 DOI: 10.1080/10717544.2022.2154411] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Magnetic Fe3O4 nanoparticles were prepared via a simple hydrothermal method and utilized to load paclitaxel. The average particle size of Fe3O4 nanoparticles was found to be 20.2 ± 3.0 nm, and the calculated saturation magnetization reached 129.38 emu/g, verifying superparamagnetism of nanomaterials. The specific surface area and pore volume were 84.756 m2/g and 0.265 cm3/g, respectively. Subsequently, Fe3O4@mSiO2 nanoparticles were successfully fabricated using the Fe3O4 nanoparticles as precursors with an average size of 27.81 nm. The relevant saturation magnetization, zeta potential, and specific surface area of Fe3O4@mSiO2-NH2-FA were respectively 76.3 emu/g, -14.1 mV, and 324.410 m2/g. The pore volume and average adsorption pore size were 0.369 cm3/g and 4.548 nm, respectively. Compared to free paclitaxel, the solubility and stability of nanoparticles loaded with paclitaxel were improved. The drug loading efficiency and drug load of the nanoformulation were 44.26 and 11.38%, respectively. The Fe3O4@mSiO2-NH2-FA nanocomposites were easy to construct with excellent active targeting performance, pH sensitivity, and sustained-release effect. The nanoformulation also showed good biocompatibility, where the cell viability remained at 73.8% when the concentration reached 1200 μg/mL. The nanoformulation induced cell death through apoptosis, as confirmed by AO/EB staining and flow cytometry. Western blotting results suggested that the nanoformulation could induce iron death by inhibiting Glutathione Peroxidase 4 (GPX4) activity or decreasing Ferritin Heavy Chain 1 (FTH1) expression. Subsequently, the expression of HIF-1α was upregulated owing to the accumulation of reactive oxygen species (ROS), thus affecting the expression of apoptosis-related proteins regulated by p53, inducing cell apoptosis.
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Affiliation(s)
- Yun Ni
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Peng Deng
- The People’s Hospital of Danyang, Affiliated Danyang Hospital of Nantong University, Zhenjiang, P.R. China
| | - Ruitong Yin
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Ziye Zhu
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Chen Ling
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Mingyi Ma
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Jie Wang
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China
| | - Shasha Li
- Affiliated Kunshan Hospital, Jiangsu University, Suzhou, P.R. China,CONTACT Shasha Li
| | - Ruijiang Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, P.R. China,Ruijiang Liu
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Xiang L, Jin S, Yu Y, Wang D, Chen H. Risk of venous thromboembolism in patients undergoing gastric cancer surgery: a systematic review and meta-analysis. BMC Cancer 2023; 23:933. [PMID: 37789268 PMCID: PMC10546706 DOI: 10.1186/s12885-023-11424-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/20/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND Venous thromboembolism (VTE) is a common postoperative complication in patients undergoing surgery for gastric cancer (GC). Although VTE incidence may vary among cancers, guidelines rarely stratify preventive methods for postoperative VTE by cancer type. The risk of VTE in patients undergoing surgery for GC remains unclear. METHODS A systematic review and meta-analysis was undertaken to determine the risk of VTE after GC surgery and discuss the clinical value of pharmacological thromboprophylaxis in these cases. Medline, Embase, Web of Science, and Cochrane Library databases were searched for articles published from their inception to September 2022. RESULTS Overall, 13 studies (111,936 patients) were included. The overall 1-month incidence of VTE, deep vein thrombosis (DVT), and pulmonary embolism (PE) after GC surgery was 1.8% (95% CI, 0.8-3.1%; I²=98.5%), 1.2% (95% CI, 0.5-2.1%; I²=96.1%), and 0.4% (95% CI, 0.1-1.1%; I²=96.3%), respectively. The prevalence of postoperative VTE was comparable between Asian and Western populations (1.8% vs. 1.8%; P > 0.05). Compared with mechanical prophylaxis alone, mechanical plus pharmacological prophylaxis was associated with a significantly lower 1-month rate of postoperative VTE and DVT (0.6% vs. 2.9% and 0.6% vs. 2.8%, respectively; all P < 0.05), but not PE (P > 0.05). The 1-month postoperative incidence of VTE was not significantly different between laparoscopic and open surgery (1.8% vs. 4.3%, P > 0.05). CONCLUSION Patients undergoing GC surgery do not have a high risk of VTE. The incidence of VTE after GC surgery is not significantly different between Eastern and Western patients. Mechanical plus pharmacological prophylaxis is more effective than mechanical prophylaxis alone in postoperative VTE prevention. The VTE risk is comparable between open and laparoscopic surgery for GC.
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Affiliation(s)
- Lin Xiang
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China.
- Department of Pathology, Lanzhou University Second Hospital, 82 Cuiying Gate, Lanzhou, 730030, China.
| | - Shuai Jin
- Department of Surgery, Qiaokou Hususu Clinic, Wuhan, China
| | - Yang Yu
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
- Department of Tumour Surgery, Lanzhou University Second Hospital, 82 Cuiying Gate, Lanzhou, 730030, China
| | - Dengfeng Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Hao Chen
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China.
- Department of Tumour Surgery, Lanzhou University Second Hospital, 82 Cuiying Gate, Lanzhou, 730030, China.
- The Key Laboratory of the Digestive System Tumours of Gansu Province, Lanzhou University Second Hospital, Lanzhou, China.
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Pan CS, Sanaiha Y, Hadaya J, Lee C, Tran Z, Benharash P. Venous thromboembolism in Cancer surgery: A report from the Nationwide readmissions database. Surg Open Sci 2022; 9:58-63. [PMID: 35669894 PMCID: PMC9166654 DOI: 10.1016/j.sopen.2022.04.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/23/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022] Open
Abstract
Background The present study characterized the incidence of venous thromboembolism in a contemporary cohort of surgical oncology patients and its association with index hospitalization and postdischarge outcomes. Methods Adults undergoing 7 major thoracic and abdominal cancer resections were identified in the 2016–2019 Nationwide Readmissions Database. Multivariable models stratified by operative subtype were developed to evaluate the association of venous thromboembolism with outcomes of interest. Results Of an estimated 436,368 patients, venous thromboembolism was identified in 9,811 (2.2%) patients during index hospitalization. Esophageal (4.1%) and gastric (4.1%) resections exhibited the highest rates of venous thromboembolism, whereas pulmonary resection (1.0%) the lowest. Following adjustment, cancer resection type demonstrated the strongest association with venous thromboembolism development among all factors analyzed (adjusted odds ratio: 3.13, 95% confidence interval: 2.60–3.78). Diagnosis of venous thromboembolism was associated with increased mortality (10.2%, 95% confidence interval: 9.4–11.1 vs 1.7, 95% confidence interval: 1.6–1.7) and prolonged index hospital stay (19.5 days, 95% confidence interval: 19.1–20.0 vs 7.5, 95% confidence interval: 7.4–7.5). Of patients who survived index hospitalization, venous thromboembolism occurrence was associated with increased risk of nonhome discharge (56.4%, 95% confidence interval: 54.7–58.0 vs 14.4, 95% confidence interval: 14.2–14.7) and readmission (30.0%, 95% confidence interval: 28.5–31.1 vs 16.9, 95% confidence interval: 16.7–17.1). Additionally, venous thromboembolism substantially increased index hospitalization ($40,000, 95% confidence interval: $38,000–$42,000) and readmission costs ($3,200, 95% confidence interval: $1,700–$4,700). Conclusion Rates of venous thromboembolism remain high in surgical oncology patients, with cancer resection type as a major predictor of venous thromboembolism incidence. Venous thromboembolism was associated with inferior clinical and financial outcomes that extended beyond discharge. These findings underscore the importance of continued vigilance and procedure-specific prophylaxis measures.
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Affiliation(s)
| | | | | | | | | | - Peyman Benharash
- Corresponding author at: UCLA Division of Cardiac Surgery, 64-249 Center for Health Sciences, Los Angeles, CA 90095. Tel.: + 1 (310) 206-6717; Fax: + 1 (310) 206-5901. @CoreLabUCLA@UCLASurgery
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Mallick S, Aiken T, Varley P, Abbott D, Tzeng CW, Weber S, Wasif N, Zafar SN. Readmissions From Venous Thromboembolism After Complex Cancer Surgery. JAMA Surg 2022; 157:312-320. [PMID: 35080619 PMCID: PMC8792793 DOI: 10.1001/jamasurg.2021.7126] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
IMPORTANCE Venous thromboembolism (VTE) is a major cause of preventable morbidity and mortality after cancer surgery. Venous thromboembolism events that are significant enough to require hospital readmission are potentially life threatening, yet data regarding the frequency of these events beyond the 30-day postoperative period remain limited. OBJECTIVE To determine the rates, outcomes, and predictive factors of readmissions owing to VTE up to 180 days after complex cancer operations, using a national data set. DESIGN, SETTING, AND PARTICIPANTS A retrospective cohort study of the 2016 Nationwide Readmissions Database was performed to study adult patients readmitted with a primary VTE diagnosis. Data obtained from 197 510 visits for 126 104 patients were analyzed. This was a multicenter, population-based, nationally representative study of patients who underwent a complex cancer operation (defined as cystectomy, colectomy, esophagectomy, gastrectomy, liver/biliary resection, lung/bronchus resection, pancreatectomy, proctectomy, prostatectomy, or hysterectomy) from January 1 through September 30, 2016, for a corresponding cancer diagnosis. EXPOSURES Readmission with a primary diagnosis of VTE. MAIN OUTCOMES AND MEASURES Proportion of 30-, 90-, and 180-day VTE readmissions after complex cancer surgery, factors associated with readmissions, and outcomes observed during readmission visit, including mortality, length of stay, hospital cost, and readmission to index vs nonindex hospital. RESULTS For the 126 104 patients included in the study, 30-, 90-, and 180-day VTE-associated readmission rates were 0.6% (767 patients), 1.1% (1331 patients), and 1.7% (1449 of 83 337 patients), respectively. A majority of patients were men (58.7%), and the mean age was 65 years (SD, 11.5 years). For the 1331 patients readmitted for VTE within 90 days, 456 initial readmissions (34.3%) were to a different hospital than the index surgery hospital, median length of stay was 5 days (IQR, 3-7 days), median cost was $8102 (IQR, $5311-$10 982), and 122 patients died (9.2%). Independent factors associated with readmission included type of operation, scores for severity and risk of mortality, age of 75 to 84 years (odds ratio [OR], 1.30; 95% CI, 1.02-1.78), female sex (OR, 1.23; 95% CI, 1.11-1.37), nonelective index admission (OR, 1.31; 95% CI, 1.03-1.68), higher number of comorbidities (OR, 1.30; 95% CI, 1.06-1.60), and experiencing a major postoperative complication during the index admission (OR, 2.08; 95% CI, 1.85-2.33). CONCLUSIONS AND RELEVANCE In this cohort study, VTE-related readmissions after complex cancer surgery continued to increase well beyond 30 days after surgery. Quality improvement efforts to decrease the burden of VTE in postoperative patients should measure and account for these late VTE-related readmissions.
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Affiliation(s)
- Saad Mallick
- School of Medicine, Aga Khan University, Karachi, Pakistan
| | - Taylor Aiken
- Division of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison
| | - Patrick Varley
- Division of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison
| | - Daniel Abbott
- Division of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison
| | - Ching-Wei Tzeng
- Department of Surgery, MD Anderson Cancer Center, Houston, Texas
| | - Sharon Weber
- Division of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison
| | - Nabil Wasif
- Department of Surgery, Mayo Clinic Arizona, Phoenix
| | - Syed Nabeel Zafar
- Division of Surgical Oncology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison
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