Gayle DiLalla

Positions:

Assistant Professor of Surgery

Surgical Oncology
School of Medicine

Member of the Duke Cancer Institute

Duke Cancer Institute
School of Medicine

Education:

M.D. 1987

University of Missouri Kansas City, School of Medicine

Publications:

Mortality in Older Patients with Breast Cancer Undergoing Breast Surgery: How Low is "Low Risk"?

BACKGROUND: Breast surgery carries a low risk of postoperative mortality. For older patients with multiple comorbidities, even low-risk procedures can confer some increased perioperative risk. We sought to identify factors associated with postoperative mortality in breast cancer patients ≥70 years to create a nomogram for predicting risk of death within 90 days. METHODS: Patients diagnosed with nonmetastatic invasive breast cancer (2010-2016) were selected from the National Cancer Database. Unadjusted OS was estimated using the Kaplan-Meier method. Multivariate logistic regression was used to estimate the association of age and surgery with 90-day mortality and to build a predictive nomogram. RESULTS: Among surgical patients ≥70 years, unadjusted 90-day mortality increased with increasing age (70-74 = 0.4% vs. ≥85 = 1.6%), comorbidity score (0 = 0.5% vs. ≥3 = 2.7%), and disease stage (I = 0.4% vs. III = 2.7%; all p < 0.001). After adjustment, death within 90 days of surgery was associated with higher age (≥85 vs. 70-74: odds ratio [OR] 3.16, 95% confidence interval [CI] 2.74-3.65), comorbidity score (≥3 vs. 0: OR 4.79, 95% CI 3.89-5.89), and disease stage (III vs. I: OR 4.30, 95% CI 3.69-5.00). Based on these findings, seven variables (age, gender, comorbidity score, facility type, facility location, clinical stage, and surgery type) were selected to build a nomogram; estimates of risk of death within 90 days ranged from <1 to >30%. CONCLUSIONS: Breast operations remain relatively low-risk procedures for older patients with breast cancer, but select factors can be used to estimate the risk of postoperative mortality to guide surgical decision-making among older women.
MLA Citation
Dillon, Jacquelyn, et al. “Mortality in Older Patients with Breast Cancer Undergoing Breast Surgery: How Low is "Low Risk"?Ann Surg Oncol, vol. 28, no. 10, 2021, pp. 5758–67. Pubmed, doi:10.1245/s10434-021-10502-3.
URI
https://scholars.duke.edu/individual/pub1483069
PMID
34309779
Source
pubmed
Published In
Annals of Surgical Oncology
Volume
28
Published Date
Start Page
5758
End Page
5767
DOI
10.1245/s10434-021-10502-3

Metastatic breast cancer: Who benefits from surgery?

BACKGROUND: We sought to identify characteristics of metastatic breast cancer (MBC) patients who may benefit most from primary tumor resection. METHODS: Recursive partitioning analysis (RPA) was used to categorize non-surgical patients with de novo MBC in the NCDB (2010-2015) into 3 groups (I/II/III) based on 3-year overall survival (OS). After bootstrapping (BS), group-level profiles were applied, and the association of surgery with OS was estimated using Cox proportional hazards models. RESULTS: All patients benefitted from surgery (median OS, surgery vs no surgery): 72.7 vs 42.9 months, 47.3 vs 30.4 months, 23.8 vs 14.4 months (all p < 0.001) in BS-groups I, II, and III, respectively. After adjustment, surgery remained associated with improved OS (HR 0.52, 95% CI 0.50-0.55). The effect of surgery on OS differed quantitatively across groups. CONCLUSION: Prognostic groups may inform the degree of benefit from surgery, with the greatest benefit seen in those with the most favorable survival.
MLA Citation
Marks, Caitlin E., et al. “Metastatic breast cancer: Who benefits from surgery?Am J Surg, July 2021. Pubmed, doi:10.1016/j.amjsurg.2021.07.018.
URI
https://scholars.duke.edu/individual/pub1493295
PMID
34325907
Source
pubmed
Published In
Am J Surg
Published Date
DOI
10.1016/j.amjsurg.2021.07.018

Preoperative nasopharyngeal swab testing and postoperative pulmonary complications in patients undergoing elective surgery during the SARS-CoV-2 pandemic.

<h4>Background</h4>Surgical services are preparing to scale up in areas affected by COVID-19. This study aimed to evaluate the association between preoperative SARS-CoV-2 testing and postoperative pulmonary complications in patients undergoing elective cancer surgery.<h4>Methods</h4>This international cohort study included adult patients undergoing elective surgery for cancer in areas affected by SARS-CoV-2 up to 19 April 2020. Patients suspected of SARS-CoV-2 infection before operation were excluded. The primary outcome measure was postoperative pulmonary complications at 30 days after surgery. Preoperative testing strategies were adjusted for confounding using mixed-effects models.<h4>Results</h4>Of 8784 patients (432 hospitals, 53 countries), 2303 patients (26.2 per cent) underwent preoperative testing: 1458 (16.6 per cent) had a swab test, 521 (5.9 per cent) CT only, and 324 (3.7 per cent) swab and CT. Pulmonary complications occurred in 3.9 per cent, whereas SARS-CoV-2 infection was confirmed in 2.6 per cent. After risk adjustment, having at least one negative preoperative nasopharyngeal swab test (adjusted odds ratio 0.68, 95 per cent confidence interval 0.68 to 0.98; P = 0.040) was associated with a lower rate of pulmonary complications. Swab testing was beneficial before major surgery and in areas with a high 14-day SARS-CoV-2 case notification rate, but not before minor surgery or in low-risk areas. To prevent one pulmonary complication, the number needed to swab test before major or minor surgery was 18 and 48 respectively in high-risk areas, and 73 and 387 in low-risk areas.<h4>Conclusion</h4>Preoperative nasopharyngeal swab testing was beneficial before major surgery and in high SARS-CoV-2 risk areas. There was no proven benefit of swab testing before minor surgery in low-risk areas.
Authors
COVIDSurg Collaborative,
MLA Citation
COVIDSurg Collaborative, Christopher S. “Preoperative nasopharyngeal swab testing and postoperative pulmonary complications in patients undergoing elective surgery during the SARS-CoV-2 pandemic.The British Journal of Surgery, vol. 108, no. 1, Jan. 2021, pp. 88–96. Epmc, doi:10.1093/bjs/znaa051.
URI
https://scholars.duke.edu/individual/pub1481716
PMID
33640908
Source
epmc
Published In
British Journal of Surgery
Volume
108
Published Date
Start Page
88
End Page
96
DOI
10.1093/bjs/znaa051

Elective Cancer Surgery in COVID-19-Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study.

PURPOSE: As cancer surgery restarts after the first COVID-19 wave, health care providers urgently require data to determine where elective surgery is best performed. This study aimed to determine whether COVID-19-free surgical pathways were associated with lower postoperative pulmonary complication rates compared with hospitals with no defined pathway. PATIENTS AND METHODS: This international, multicenter cohort study included patients who underwent elective surgery for 10 solid cancer types without preoperative suspicion of SARS-CoV-2. Participating hospitals included patients from local emergence of SARS-CoV-2 until April 19, 2020. At the time of surgery, hospitals were defined as having a COVID-19-free surgical pathway (complete segregation of the operating theater, critical care, and inpatient ward areas) or no defined pathway (incomplete or no segregation, areas shared with patients with COVID-19). The primary outcome was 30-day postoperative pulmonary complications (pneumonia, acute respiratory distress syndrome, unexpected ventilation). RESULTS: Of 9,171 patients from 447 hospitals in 55 countries, 2,481 were operated on in COVID-19-free surgical pathways. Patients who underwent surgery within COVID-19-free surgical pathways were younger with fewer comorbidities than those in hospitals with no defined pathway but with similar proportions of major surgery. After adjustment, pulmonary complication rates were lower with COVID-19-free surgical pathways (2.2% v 4.9%; adjusted odds ratio [aOR], 0.62; 95% CI, 0.44 to 0.86). This was consistent in sensitivity analyses for low-risk patients (American Society of Anesthesiologists grade 1/2), propensity score-matched models, and patients with negative SARS-CoV-2 preoperative tests. The postoperative SARS-CoV-2 infection rate was also lower in COVID-19-free surgical pathways (2.1% v 3.6%; aOR, 0.53; 95% CI, 0.36 to 0.76). CONCLUSION: Within available resources, dedicated COVID-19-free surgical pathways should be established to provide safe elective cancer surgery during current and before future SARS-CoV-2 outbreaks.
Authors
Glasbey, JC; Nepogodiev, D; Simoes, JFF; Omar, O; Li, E; Venn, ML; Pgdme,; Abou Chaar, MK; Capizzi, V; Chaudhry, D; Desai, A; Edwards, JG; Evans, JP; Fiore, M; Videria, JF; Ford, SJ; Ganly, I; Griffiths, EA; Gujjuri, RR; Kolias, AG; Kaafarani, HMA; Minaya-Bravo, A; McKay, SC; Mohan, HM; Roberts, KJ; San Miguel-Méndez, C; Pockney, P; Shaw, R; Smart, NJ; Stewart, GD; Sundar Mrcog, S; Vidya, R; Bhangu, AA; COVIDSurg Collaborative,
MLA Citation
Glasbey, James C., et al. “Elective Cancer Surgery in COVID-19-Free Surgical Pathways During the SARS-CoV-2 Pandemic: An International, Multicenter, Comparative Cohort Study.J Clin Oncol, vol. 39, no. 1, Jan. 2021, pp. 66–78. Pubmed, doi:10.1200/JCO.20.01933.
URI
https://scholars.duke.edu/individual/pub1482458
PMID
33021869
Source
pubmed
Published In
Journal of Clinical Oncology
Volume
39
Published Date
Start Page
66
End Page
78
DOI
10.1200/JCO.20.01933

Survival Outcomes Among Patients with Metastatic Breast Cancer: Review of 47,000 Patients.

<h4>Background</h4>Although metastatic breast cancer (MBC) remains incurable, advances in therapies have improved survival. Using a contemporary dataset of de novo MBC patients, we explore how overall (OS) and cancer-specific survival (CSS) changed over time.<h4>Methods</h4>All patients with de novo MBC from 1988 to 2016 were selected from Surveillance, Epidemiology, and End Results (SEER) 18. Unadjusted OS and CSS were estimated by Kaplan-Meier method and stratified by disease characteristics. Cox proportional hazards models determined factors associated with survival.<h4>Results</h4>47,034 patients were included, with median OS of 25 months and CSS of 27 months. Survival steadily improved over time (1988: 1-year OS 62%, CSS 65%; 2015: 1-year OS 72%, CSS 74%). Patients with triple-negative breast cancer (TNBC) had the worst prognosis and were most likely to die from MBC [versus human epidermal growth factor receptor 2 (HER2)+ and hormone receptor (HR)+/HER2-]. Those with ≥ 4 sites of metastatic disease were also more likely to die from MBC with nearly identical OS and CSS (5-year OS 9%, CSS 9%), when compared with those with 1 site (5-year OS 31%, CSS 35%). After adjustment, improved CSS was associated with bone-only disease [hazard ratio (HR) 0.88, 95% confidence interval (CI) 0.83-0.94], while TNBC (versus HER2+: HR 3.12, 95% CI 2.89-3.36) and > 3 sites of metastatic disease (versus 1 site: HR 3.24, 95% CI 2.68-3.91) were associated with worse CSS (all p < 0.001).<h4>Conclusions</h4>Accurate prognostic estimates are essential for patient care. As treatments for patients with MBC have expanded, OS and CSS have improved, and more patients, particularly with limited distant disease or favorable tumor subtypes, are also dying from non-MBC causes.
Authors
Taskindoust, M; Thomas, SM; Sammons, SL; Fayanju, OM; DiLalla, G; Hwang, ES; Plichta, JK
MLA Citation
Taskindoust, Mahsa, et al. “Survival Outcomes Among Patients with Metastatic Breast Cancer: Review of 47,000 Patients.Annals of Surgical Oncology, vol. 28, no. 12, 2021, pp. 7441–49. Epmc, doi:10.1245/s10434-021-10227-3.
URI
https://scholars.duke.edu/individual/pub1476929
PMID
34050430
Source
epmc
Published In
Annals of Surgical Oncology
Volume
28
Published Date
Start Page
7441
End Page
7449
DOI
10.1245/s10434-021-10227-3