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Wu KY, Wang X, Youngson E, Gouda P, Graham MM. Sex differences in post-operative outcomes following non-cardiac surgery. PLoS One 2023; 18:e0293638. [PMID: 37910570 PMCID: PMC10619824 DOI: 10.1371/journal.pone.0293638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/17/2023] [Indexed: 11/03/2023] Open
Abstract
It is uncertain whether sex is an independent risk factor for poor outcomes after non-cardiac surgery. We examined sex differences in short- and long-term mortality and morbidity in patients undergoing non-cardiac surgery in Alberta, Canada. Using linked administrative databases, we identified patients undergoing one of 45 different non-cardiac surgeries who were hospitalized between 2008 and 2019. Adjusted odds ratios (95% CI) were reported for mortality at 30-days, 6-months, and 1-year stratified by sex. Secondary outcomes including all-cause hospitalization, hospitalization for heart failure (HF), hospitalization for acute coronary syndrome (ACS), hospitalization for infection, hospitalization for stroke, and hospitalization for bleeding were also analyzed. Multivariate logistic regression was adjusted for age, sex, surgery type, the components of the Charlson Comorbidity Index, and the Revised Cardiac Risk Index. We identified 552,224 unique patients who underwent non-cardiac surgery of which 304,408 (55.1%) were female. Male sex was a predictor of mortality at 30-days (aOR 1.25 (1.14, 1.38), p<0.0001), 6-months (aOR 1.26 (1.20, 1.33), p<0.0001), and 1-year (aOR 1.25 (1.20, 1.31), p<0.0001). Similarly, male sex was a predictor of hospital readmission at 30-days (1.12 (1.09, 1.14), p<0.0001), 6-months (aOR 1.11 (1.10, 1.13), p<0.0001), and 1-year (aOR 1.06 (1.04, 1.07), p<0.0001). When the results were stratified by age, the effect of male sex on clinical outcome diminished for age ≥ 65years compared to younger patients. In conclusion, male patients undergoing non-cardiac surgery have higher risks of all-cause mortality and readmission after adjustment for baseline risk factor differences, particularly in those under 65-years-old. The overall incidence of readmission for stroke, bleeding, HF and ACS after non-cardiac surgery was low. The impact of male sex on clinical outcomes decreases with increasing age, suggesting the importance of considering the effect of both sex and age on clinical outcomes after non-cardiac surgery.
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Affiliation(s)
- Kai Yi Wu
- Mazankowski Alberta Heart Institute, Division of Cardiology, University of Alberta, Edmonton, Alberta, Canada
| | - Xiaoming Wang
- Research Facilitation, Alberta Health Services, Edmonton, Alberta, Canada
| | - Erik Youngson
- Research Facilitation, Alberta Health Services, Edmonton, Alberta, Canada
| | - Pishoy Gouda
- Mazankowski Alberta Heart Institute, Division of Cardiology, University of Alberta, Edmonton, Alberta, Canada
| | - Michelle M. Graham
- Mazankowski Alberta Heart Institute, Division of Cardiology, University of Alberta, Edmonton, Alberta, Canada
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Sugita S, Ishikawa M, Sakuma T, Iizuka M, Hanai S, Sakamoto A. Intraoperative serum lactate levels as a prognostic predictor of outcome for emergency abdominal surgery: a retrospective study. BMC Surg 2023; 23:162. [PMID: 37328824 DOI: 10.1186/s12893-023-02075-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/13/2023] [Indexed: 06/18/2023] Open
Abstract
BACKGROUND The relationship between intraoperative lactate levels and prognosis after emergency gastrointestinal surgery remains unclear. The purpose of this study was to investigate the prognostic value of intraoperative lactate levels for predicting in-hospital mortality, and to examine intraoperative hemodynamic managements. METHODS We conducted a retrospective observational study of emergency GI surgeries performed at our institution between 2011 and 2020. The study group comprised patients admitted to intensive care units postoperatively, and whose intraoperative and postoperative lactate levels were available. Intraoperative peak lactate levels (intra-LACs) were selected for analysis, and in-hospital mortality was set as the primary outcome. The prognostic value of intra-LAC was assessed using logistic regression and receiver operating characteristic (ROC) curve analysis. RESULTS Of the 551 patients included in the study, 120 died postoperatively. Intra-LAC in the group who survived and the group that died was 1.80 [interquartile range [IQR], 1.19-3.01] mmol/L and 4.22 [IQR, 2.15-7.13] mmol/L (P < 0.001), respectively. Patients who died had larger volumes of red blood cell (RBC) transfusions and fluid administration, and were administered higher doses of vasoactive drugs. Logistic regression analysis showed that intra-LAC was an independent predictor of postoperative mortality (odds ratio [OR] 1.210, 95% CI 1.070 -1.360, P = 0.002). The volume of RBCs, fluids transfused, and the amount of vasoactive agents administered were not independent predictors. The area under the curve (AUC) of the ROC curve for intra-LAC for in-hospital mortality was 0.762 (95% confidence interval [CI], 0.711-0.812), with a cutoff value of 3.68 mmol/L by Youden index. CONCLUSIONS Intraoperative lactate levels, but not hemodynamic management, were independently associated with increased in-hospital mortality after emergency GI surgery.
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Affiliation(s)
- Shinji Sugita
- Department of Anesthesiology and Pain Medicine, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan.
- Department of Anesthesiology, Nippon Medical School Musashi-Kosugi Hospital, 1-383 Kosugi-cho, Nakahara-ku, Kawasaki-shi, Kanagawa, 211-8533, Japan.
| | - Masashi Ishikawa
- Department of Anesthesiology and Pain Medicine, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Takahiro Sakuma
- Department of Anesthesiology and Pain Medicine, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Masumi Iizuka
- Department of Anesthesiology and Pain Medicine, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
- Department of Anesthesia, Urasoe General Hospital, 4-16-1 Iso, Urasoe-shi, Okinawa, 901-2132, Japan
| | - Sayako Hanai
- Department of Anesthesiology and Pain Medicine, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
- Department of Anesthesiology, Keiyu Hospital, 3-7-3 Minatomirai, Nishi-ku, Yokohama-shi, Kanagawa, 220-8521, Japan
| | - Atsuhiro Sakamoto
- Department of Anesthesiology and Pain Medicine, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
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Evaluation of Treatment Differences Between Men and Women Undergoing Ventral Hernia Repair: An Analysis of the Abdominal Core Health Quality Collaborative. J Am Coll Surg 2022; 235:603-611. [PMID: 36106866 DOI: 10.1097/xcs.0000000000000295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Sex is emerging as an important clinical variable associated with surgical outcomes and decision making. However, its relevance in regard to baseline and treatment differences in primary and incisional ventral hernia repair remains unclear. STUDY DESIGN This is a retrospective cohort study using the Abdominal Core Health Quality Collaborative database to identify elective umbilical, epigastric, or incisional hernia repairs. Propensity matching was performed to investigate confounder-adjusted treatment differences between men and women. Treatments of interest included surgical approach (minimally invasive or open), mesh use, mesh type, mesh position, anesthesia type, myofascial release, fascial closure, and fixation use. RESULTS A total of 8,489 umbilical, 1,801 epigastric, and 16,626 incisional hernia repairs were identified. Women undergoing primary ventral hernia repair were younger (umbilical 46.4 vs 54 years, epigastric 48.7 vs 52.7 years), with lower BMI (umbilical 30.4 vs 31.5, epigastric 29.2 vs 31.1), and less likely diabetic (umbilical 9.9% vs 11.4%, epigastric 6.8% vs 8.8%). Women undergoing incisional hernia repair were also younger (mean 57.5 vs 59.1 years), but with higher BMI (33.1 vs 31.5), and more likely diabetic (21.4% vs 19.1%). Propensity-matched analysis included 3,644 umbilical, 1,232 epigastric, and 12,480 incisional hernias. Women with incisional hernia were less likely to undergo an open repair (60.2% vs 63.4%, p < 0.001) and have mesh used (93.8% vs 94.8%, p = 0.02). In umbilical and incisional hernia repairs, women had higher rates of intraperitoneal mesh placement and men had higher rates of preperitoneal and retro-muscular mesh placement. CONCLUSIONS Small but statistically significant treatment differences in operative approach, mesh use, and mesh position exist between men and women undergoing ventral hernia repair. It remains unknown whether these treatment differences result in differing clinical outcomes.
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Patient Sex and Postoperative Outcomes after Inpatient Intraabdominal Surgery: A Population-based Retrospective Cohort Study. Anesthesiology 2022; 136:577-587. [PMID: 35188547 DOI: 10.1097/aln.0000000000004136] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Intraabdominal surgeries are frequently performed procedures that lead to a high volume of unplanned readmissions and postoperative complications. Patient sex may be a determinant of adverse outcomes in this population, possibly due to differences in biology or care delivery, but it is understudied. The authors hypothesized that there would be no association between patient sex and the risk of postoperative adverse outcomes in intraabdominal surgery. METHODS This retrospective, population-based cohort study involved adult inpatients aged 18 yr or older who underwent intraabdominal surgeries in Ontario, Canada, between April 2009 and March 2016. The authors studied the association of patient sex on the primary composite outcome of all-cause death, hospital readmission, or major postoperative complications, all within 30 postoperative days. Inverse probability of exposure weighting based on propensity scores (computed using demographic characteristics such as rural residence status and median neighborhood income quintile, common comorbidities, and surgery- and hospital-specific characteristics) was used to estimate the adjusted association of sex on outcomes. RESULTS The cohort included 215,846 patients (52.3% female). The primary outcome was observed in 24,712 (21.9%) females and 25,486 (24.7%) males (unadjusted risk difference, 2.8% [95% CI, 2.5 to 3.2%]; P < 0.001). After adjustment, the association between the male sex and the primary outcome was not statistically significant (adjusted risk difference, -0.2% [95% CI, -0.5 to 0.2%]; P = 0.378). CONCLUSIONS In a large population of intraabdominal surgical patients, there was no differential risk between sexes in the composite outcome of all-cause death, hospital readmission, or major postoperative complications, all within 30 postoperative days. EDITOR’S PERSPECTIVE
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OUP accepted manuscript. Br J Surg 2022; 109:746-753. [DOI: 10.1093/bjs/znac128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/06/2021] [Accepted: 04/05/2022] [Indexed: 11/14/2022]
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McCann A, Sorensen J, Nally D, Kavanagh D, McNamara DA. Discharge outcomes among elderly patients undergoing emergency abdominal surgery: registry study of discharge data from Irish public hospitals. BMC Geriatr 2020; 20:72. [PMID: 32075577 PMCID: PMC7031938 DOI: 10.1186/s12877-020-1469-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 02/11/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Intra-abdominal emergency surgery is associated with high mortality risk and long length of hospital stay. The objective of this study was to explore variations in surgery rates, the relationship between admission source and discharge destination, and whether the postoperative length of stay was related to nursing home capacity in Irish counties. METHODS Data on emergency hospital episodes for 2014-18 for patients aged over 65 years with a primary abdominal procedure code were obtained from the National Quality Assurance Improvement System. Data on population and nursing home capacity were obtained from the Central Statistics Office and the Health Information and Quality Authority. Episode rates per 100,000 were estimated for sex and age groups and compared between 26 Irish counties. The association between admission source and discharge destination was explored in terms episode numbers, length of stay and mortality. A negative binomial regression model estimated casemix adjusted excess post-operative length of stay. The correlation between excess post-operative length of stay and nursing home capacity was explored by linear regression. RESULTS Overall, 4951 hospital episodes were included. The annual surgery rate ranged from 100 episodes per 100,000 65-69 years old to 250 per 100,000 85-89 year old men. 90% of the episodes were admitted from patients' home. Four in five of these patients returned to their home while 12.7% died at hospital. The proportion of episodes where patients returned to their home reduced to two in five for those aged 85-89 years. The post-operative length of stay was 13.6 days longer (p < 0.01) for episodes admitted from home and discharged to nursing home in comparison with episodes discharged home. A negative association (p = 0.08) was found between excess post-operative length of stay and county-level nursing home capacity. CONCLUSIONS This study provides relevant information to support informed consent to surgery for patients and clinicians and to improve the provision of care to older patients presenting with intra-abdominal emergencies.
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Affiliation(s)
- Aisling McCann
- National Clinical Programme in Surgery, Royal College of Surgeons in Ireland, 2 Proud’s Lane, Dublin, Ireland
| | - Jan Sorensen
- Healthcare Outcomes Research Centre, Royal College of Surgeons in Ireland, Beaux Lane House, Mercer Street Lower, Dublin, Ireland
| | - Deirdre Nally
- Department of Surgical Affairs, Royal College of Surgeons in Ireland, 121 St. Stephen’s Green, Dublin, Ireland
| | - Dara Kavanagh
- Department of Surgical Affairs, Royal College of Surgeons in Ireland, 121 St. Stephen’s Green, Dublin, Ireland
| | - Deborah A. McNamara
- National Clinical Programme in Surgery, Royal College of Surgeons in Ireland, 2 Proud’s Lane, Dublin, Ireland
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Rucker D, Warkentin LM, Huynh H, Khadaroo RG. Sex differences in the treatment and outcome of emergency general surgery. PLoS One 2019; 14:e0224278. [PMID: 31682610 PMCID: PMC6827895 DOI: 10.1371/journal.pone.0224278] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 10/09/2019] [Indexed: 01/01/2023] Open
Abstract
Background Sociodemographic characteristics, such as sex, have been shown to influence health care delivery. Acute care surgery models are effective in decreasing mortality and morbidity after emergency surgeries, but sex-based differences in delivery and outcomes have not been explored. Our objective was to explore sex associated differences in the patient characteristics and clinical outcomes of those admitted to emergency general surgery. Methods A post-hoc analysis of 512 emergency general surgical patients admitted consecutively to two tertiary care hospitals in Alberta Canada, between April 1, 2014 and July 31, 2015. We measured associations between sex and patient demographics, pre-, intra- and post-operative delivery of care, as well as post-operative outcomes. Findings Of those excluded from the analysis, older females were more likely to undergo conservative management compared to older men (41% vs 34%, p = 0.03). Overall, there were no differences between sexes for time from admission to surgery, time spent in surgery, overall complication rate, mortality, hospital length of stay, or discharge disposition. Women were more likely to have a cancer diagnosis [OR 4.12 (95% CI: 1.61–10.5), p = 0.003, adjusted for age], while men were more likely to receive hernia surgery [OR 2.33 (95% CI 1.35–4.02), p = 0.002, adjusted for age and Charlson Comorbidity Index]. Finally, men were more likely to have a major respiratory complication [OR 2.73 (95% CI: 1.19–6.24), p = 0.02, adjusted for age]. Conclusions Only two differences in peri and post-operative complications between sexes were noted, which suggests sex-based disparity in quality of care is limited once a decision has been made to operate. Future studies with larger databases are needed to corroborate our findings and investigate potential sex biases in surgical versus conservative management.
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Affiliation(s)
- Diana Rucker
- Department of Medicine, Division of Geriatrics, University of Alberta, Edmonton, AB, Canada
| | | | - Hanhmi Huynh
- Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Rachel G. Khadaroo
- Department of Surgery, University of Alberta, Edmonton, AB, Canada
- Department of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada
- * E-mail:
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Association Between Geographic Measures of Socioeconomic Status and Deprivation and Major Surgical Outcomes. Med Care 2019; 57:949-959. [DOI: 10.1097/mlr.0000000000001214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Females Are More Resistant to Ischemia-Reperfusion-induced Intestinal Injury Than Males. Ann Surg 2019; 272:1070-1079. [DOI: 10.1097/sla.0000000000003167] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Abstract
INTRODUCTION Patients undergoing complex ventral hernia repair (VHR) often present with significant medical comorbidities, the most prevalent of which is obesity. Although recent advancements in abdominal wall reconstruction techniques have provided the general hernia patient population with markedly improved recurrence and postoperative complication rates, many patients have been precluded from these procedures owing to excessive body mass index (BMI). In this study, we investigate the viability of complex ventral hernia repair with epigastric artery perforator sparing skin incisions, component separation, and wide-spanning retrorectus mesh reinforcement for patients with BMI of greater than or equal to 40 kg/m(2) (class III obesity). METHODS A single surgeon retrospective review of our prospectively maintained database was performed. We restricted this data to class III morbidly obese patients undergoing open VHR with component muscle separation and wide-spanning mesh reinforcement. RESULTS Between 2010 and 2017, 131 patients met the inclusion criteria for our study. The mean patient BMI was 46.7 kg/m(2). Operative wounds were categorized according to the National Healthcare Safety Network Wound Class Definitions. There was no statistically significant association between wound class and postoperative complication rates. After our implementation of epigastric artery perforator sparing skin incisions in 2013, significantly less wound breakdown was observed (26.3%) as opposed to before (49.0%) (P < 0.01). Furthermore, significantly less cases required return to the operating room after this technique was implemented (31.3%) as compared with before (60.8%) (P < 0.001). Postoperatively, 28 patients developed an infection requiring antibiotic treatment (21.4%), and the overall hernia recurrence rate was 5.3%. Three patients expired. CONCLUSIONS Complex VHR with abdominal wall reconstruction may be a viable option for class III morbidly obese patients. Preliminary data suggest that implementation of epigastric artery perforator sparing skin incisions may reduce the risk of postoperative wound complications, and we have demonstrated hernia recurrence and wound complications comparable with those seen in the general population.
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McCutcheon BA, Chang DC, Marcus L, Gonda DD, Noorbakhsh A, Chen CC, Talamini MA, Carter BS. Treatment biases in traumatic neurosurgical care: a retrospective study of the Nationwide Inpatient Sample from 1998 to 2009. J Neurosurg 2015; 123:406-14. [DOI: 10.3171/2015.3.jns131356] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT
This study was designed to assess the relationship between insurance status and likelihood of receiving a neurosurgical procedure following admission for either extraaxial intracranial hemorrhage or spinal vertebral fracture.
METHODS
A retrospective analysis of the Nationwide Inpatient Sample (NIS; 1998–2009) was performed. Cases of traumatic extraaxial intracranial hematoma and spinal vertebral fracture were identified using International Classification of Diseases, Ninth Revision (ICD-9) diagnosis codes. Within this cohort, those patients receiving a craniotomy or spinal fusion and/or decompression in the context of an admission for traumatic brain or spine injury, respectively, were identified using the appropriate ICD-9 procedure codes.
RESULTS
A total of 190,412 patients with extraaxial intracranial hematoma were identified between 1998 and 2009. Within this cohort, 37,434 patients (19.7%) received a craniotomy. A total of 477,110 patients with spinal vertebral fracture were identified. Of these, 37,302 (7.8%) received a spinal decompression and/or fusion. On multivariate analysis controlling for patient demographics, severity of injuries, comorbidities, hospital volume, and hospital characteristics, uninsured patients had a reduced likelihood of receiving a craniotomy (odds ratio [OR] 0.76, 95% confidence interval [CI] 0.71–0.82) and spinal fusion (OR 0.67, 95% CI 0.64–0.71) relative to insured patients. This statistically significant trend persisted when uninsured and insured patients were matched on the basis of mortality propensity score. Uninsured patients demonstrated an elevated risk-adjusted mortality rate relative to insured patients in cases of extraaxial intracranial hematoma. Among patients with spinal injury, mortality rates were similar between patients with and without insurance.
CONCLUSIONS
In this study, uninsured patients were consistently less likely to receive a craniotomy or spinal fusion for traumatic intracranial extraaxial hemorrhage and spinal vertebral fracture, respectively. This difference persisted after accounting for overall injury severity and patient access to high- or low-volume treatment centers, and potentially reflects a resource allocation bias against uninsured patients within the hospital setting. This information adds to the growing literature detailing the benefits of health reform initiatives seeking to expand access for the uninsured.
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Affiliation(s)
| | | | | | - David D. Gonda
- 2Division of Neurosurgery, University of California, San Diego, California
| | | | - Clark C. Chen
- 2Division of Neurosurgery, University of California, San Diego, California
| | | | - Bob S. Carter
- 2Division of Neurosurgery, University of California, San Diego, California
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Coe TM, Wilson SE, Chang DC. Do past mortality rates predict future hospital mortality? Am J Surg 2015; 211:159-65. [PMID: 26026336 DOI: 10.1016/j.amjsurg.2015.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 04/16/2015] [Accepted: 04/18/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND This study aimed to determine whether hospitals with higher historical mortality rates are independently associated with worse patient outcomes. METHODS Observational study of in-hospital mortality in open abdominal aortic aneurysm repair, aortic valve replacement, and coronary artery bypass graft surgery in a California in-patient database was conducted. Hospitals' annual historical mortality rates between 1998 and 2010 were calculated based on 3 years of data before each year. Results were adjusted for race, sex, age, hospital teaching status, admission year, insurance status, and Charlson comorbidity index. RESULTS Hospitals were divided into quartiles based on historical mortality rates. For abdominal aortic aneurysm repair, the odds ratio (OR) of in-hospital mortality for hospitals within the highest quartile of prior mortality was 1.30 compared with the lowest quartile (95% confidence interval [CI] 1.03 to 1.63). For aortic valve replacement, the OR was 1.41 for the 3rd quartile (95% CI 1.15 to 1.73) and 1.54 for the highest quartile (95% CI 1.27 to 1.87). For coronary artery bypass graft surgery, the OR was 1.33 for the 3rd (95% CI 1.2 to 1.49) and 1.58 for the highest (95% CI 1.41 to 1.76) quartiles. CONCLUSION Patients presenting to hospitals with high historical mortality rates have a 30% to 60% increased mortality risk compared with patients presenting to hospitals with low historical mortality rates.
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Affiliation(s)
- Taylor M Coe
- Department of Surgery, University of California, San Diego, UC San Diego Health System, La Jolla, CA, USA
| | - Samuel E Wilson
- Department of Surgery, University of California, Irvine, Irvine Medical Center, Orange, CA, USA
| | - David C Chang
- Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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Older age increases short-term surgical complications after primary knee arthroplasty. Clin Orthop Relat Res 2013; 471:2611-20. [PMID: 23613088 PMCID: PMC3705042 DOI: 10.1007/s11999-013-2985-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 04/04/2013] [Indexed: 01/31/2023]
Abstract
BACKGROUND Age is a known risk factor for complications after knee arthroplasty; however, age-related risks for a variety of complications of total and partial knee arthroplasties have not been well quantified. QUESTIONS/PURPOSES Our study addressed three questions to better understand age-related risk of complications: (1) At what age do different types of complications increase? (2) Is the increase in complications with age resulting from age-related patient comorbidities, sociodemographic characteristics, and surgical conditions? (3) What is the probability of complications at different ages for an average patient? METHODS The American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) database from 2005 to 2009 was used to analyze complications for 8950 patients. Complications included NSQIP events, and complications described by the 2003 National Institutes of Health (NIH) consensus statement on total knee arthroplasty as well as 30-day mortality, deep vein thrombosis, return to the operating room, extended length of stay, and technical aspects of the surgery itself. Logistic regression analysis was performed. RESULTS Mortality was higher for those aged 85 and older. NSQIP complications increased starting at age 70 years and NIH complications at 85 years. Age remained an independent risk factor for multiple complications with controls. The predicted risk for an average patient ranged from 4% (40-64 years old) to 17% (90 years or older) for NSQIP complications and 2.8% to 8.8% for NIH complications. CONCLUSIONS Age is an important independent predictor of surgical complications after knee arthroplasties. Surgeons can share these quantified age-specific risks with patients to guide management decisions.
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Patient safety and the diffusion of surgical innovations: a national analysis of laparoscopic partial nephrectomy. Surg Endosc 2012; 27:1674-80. [PMID: 23239306 DOI: 10.1007/s00464-012-2655-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 10/10/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND There are scant data on patient safety and the national diffusion of surgical innovations. Laparoscopic partial nephrectomy (LPN) provides an apt model for population-based analyses of patient safety and the propagation of complex surgical innovations. METHODS In the nationwide inpatient sample, we identified patients undergoing partial nephrectomy for renal tumors from 1998 to 2009 and utilized patient safety indicators (PSI) to measure preventable adverse outcomes. RESULTS Of the cases, 68,713 (87 %) were OPN and 9,842 (13 %) were LPN. The prevalence of LPN increased more than threefold from 2006 to 2009. Compared to open partial nephrectomy (OPN), LPN patients were more likely to be younger (p = 0.022), have lower Charlson comorbidity scores (p = 0.002), and undergo surgery at urban (p < 0.001) and teaching (p = 0.02) hospitals. On multivariate analysis, LPN was associated with a 28 % decreased probability of any PSI (adjusted odds ratio [ORadj] 0.72, 95 % confidence interval [CI] 0.55-0.96, p = 0.025), although this benefit did not attain significance when comparing robot-assisted LPN to OPN (ORadj 0.72, 95 % CI 0.44-1.16, p = 0.173). Overall mortality decreased from 0.9 % in 1998 to 0.1 % in 2009 (p < 0.001). There were no differences in adjusted mortality between LPN and OPN (p = 0.75). CONCLUSIONS During its initial national diffusion, LPN resulted in enhanced perioperative patient safety compared to OPN. Mortality for both LPN and OPN decreased over time. Further study is needed to elucidate and promote factors contributing to the safe diffusion of complex surgical innovations.
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