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Zmora O, Stark Y, Belotserkovsky O, Reichert M, Kozloski GA, Wasserberg N, Tulchinsky H, Segev L, Senagore AJ, Emanuel N. A prospective, randomized assessment of a novel, local antibiotic releasing platform for the prevention of superficial and deep surgical site infections. Tech Coloproctol 2023; 27:209-215. [PMID: 36050560 PMCID: PMC9898410 DOI: 10.1007/s10151-022-02693-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/16/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Despite significant advances in infection control guidelines and practices, surgical site infections (SSIs) remain a substantial cause of morbidity, prolonged hospitalization, and mortality among patients having both elective and emergent surgeries. D-PLEX100 is a novel, antibiotic-eluting polymer-lipid matrix that supplies a high, local concentration of doxycycline for the prevention of superficial and deep SSIs. The aim of our study was to evaluate the safety and efficacy of D-PLEX in addition to standard of care (SOC) in preventing superficial and deep surgical site infections for patients undergoing elective colorectal surgery. METHODS From October 10, 2018 to October 6, 2019, as part of a Phase 2 clinical trial, we randomly assigned 202 patients who had scheduled elective colorectal surgery to receive either standard of care SSI prophylaxis or D-PLEX100 in addition to standard of care. The primary objective was to assess the efficacy of D-PLEX100 in superficial and deep SSI reduction, as measured by the incidence of SSIs within 30 days, as adjudicated by both an individual assessor and a three-person endpoint adjudication committee, all of whom were blinded to study-group assignments. Safety was assessed by the stratification and incidence of treatment-emergent adverse events. RESULTS One hundred and seventy-nine patients were evaluated in the per protocol population, 88 in the intervention arm [51 males, 37 females, median age (64.0 range: 19-92) years] and 91 in the control arm [57 males, 34 females, median age 64.5 (range: 21-88) years]. The SSI rate within 30 day post-index surgery revealed a 64% relative risk reduction in SSI rate in the D-PLEX100 plus standard of care (SOC) group [n = 7/88 (8%)] vs SOC alone [n = 20/91 (22%)]; p = 0.0115. There was no significant difference in treatment-emergent adverse events. CONCLUSIONS D-PLEX100 application leads to a statistically significant reduction in superficial and deep surgical site infections in this colorectal clinical model without any associated increase in adverse events.
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Affiliation(s)
- O Zmora
- Shamir Medical Center, Be'er Ya'akov, Israel
| | - Y Stark
- PolyPid Ltd, Petach Tikvah, Israel
| | | | | | | | - N Wasserberg
- Rabin Medical Center, Beilinson Campus, Petach Tikva, Israel
| | - H Tulchinsky
- Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - L Segev
- Sheba Medical Center, Tel-Hashomer, Ramat Gan, Israel
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Ben-Yaacov A, Laks S, Goldenshluger M, Nevo Y, Mor E, Schtrechman G, Margalit O, Boursi B, Shacham-Shmueli E, Halpern N, Purim O, Hazzan D, Segev L, Zippel D, Adileh M, Nissan A. Impact of "critical lesions" on outcomes following cytoreductive surgery and hyperthermic intra-peritoneal chemotherapy. Eur J Surg Oncol 2021; 47:2933-2938. [PMID: 34088586 DOI: 10.1016/j.ejso.2021.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/19/2021] [Accepted: 05/07/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Peritoneal Cancer Index (PCI) and complete cytoreduction are the best outcome predictors following cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC). Lesions in critical areas, regardless of PCI, complicate surgery and impact oncological outcomes. We prospectively defined "Critical lesions" (CL) as penetrating the hepatic hilum, diaphragm at hepatic outflow, major blood vessels, pancreas, or urinary tract. METHODS Retrospective analysis of a prospective database of 352 CRS + HIPEC patients from 2015 to 2019. Excluded patients with aborted/redo operation (n = 112), or incomplete data (n = 19). Patients categorized by CL status and compared: operative time, estimated blood loss (EBL), PCI, transfusions, hospital stay, post-operative complications and mortality, overall survival (OS) and disease-free survival (DFS). RESULTS Included 221 patients (78 CL; 143 no-CL). No difference in patients' characteristics: age, BMI, gender or co-morbidities noted. Operative time longer (5.3 h vs 4.3 h, p < 0.01), EBL higher (769 ml vs 405 ml, p < 0.01), transfusions higher (1.9 vs 0.7 Units, p < 0.001) and PCI higher (15.5 vs 9.5, p < 0.01) in CL. No difference in major complications. Postoperative complications, CL, OR-time and transfusions were predictive of OS in univariate analysis, while only complications remained on multivariate analysis. Median follow up of 21.4 months, 3-year DFS/OS was 22% vs 30% (p < 0.037) and 73% vs 87% (p < 0.014) in CL and non-CL, respectively. Despite CL complete resection, 17/38 patients (44.7%) that recurred had recurrence at previous CL site. CONCLUSIONS Critical lesions complicate surgery and may be associated with poor oncological outcomes with high local recurrence rate, despite no significant difference in complications. Utilizing adjuvant or intra-operative radiation may be beneficial.
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Affiliation(s)
- A Ben-Yaacov
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel.
| | - S Laks
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - M Goldenshluger
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - Y Nevo
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - E Mor
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - G Schtrechman
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - O Margalit
- Sackler School of Medicine, Tel-Aviv University, Israel; Gastrointestinal Malignancies Unit at the Institution of Oncology, The Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - B Boursi
- Sackler School of Medicine, Tel-Aviv University, Israel; Gastrointestinal Malignancies Unit at the Institution of Oncology, The Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - E Shacham-Shmueli
- Sackler School of Medicine, Tel-Aviv University, Israel; Gastrointestinal Malignancies Unit at the Institution of Oncology, The Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - N Halpern
- Sackler School of Medicine, Tel-Aviv University, Israel; Gastrointestinal Malignancies Unit at the Institution of Oncology, The Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - O Purim
- Gastrointestinal Malignancy Service at Assuta Samson Hospital, Ashdod, Israel
| | - D Hazzan
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - L Segev
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - D Zippel
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - M Adileh
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
| | - A Nissan
- Department of General and Oncological Surgery- Surgery C, The Chaim Sheba Medical Center, Tel Hashomer, Israel; Sackler School of Medicine, Tel-Aviv University, Israel
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Dux J, Rayman S, Zendel A, Segev L, Hoffman A, Ben Yaacov A, Marom G, Aderka D, Shacham Shmueli E, Beny A, Ayala H, Grenader T, Brenner B, Purim O, Gutman M, Venturero M, Nissan A. 117. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) for the treatment of peritoneal surface malignancies in the elderly. Eur J Surg Oncol 2016. [DOI: 10.1016/j.ejso.2016.06.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Flores JM, Washenfelder RA, Adler G, Lee HJ, Segev L, Laskin J, Laskin A, Nizkorodov SA, Brown SS, Rudich Y. Complex refractive indices in the near-ultraviolet spectral region of biogenic secondary organic aerosol aged with ammonia. Phys Chem Chem Phys 2014; 16:10629-42. [DOI: 10.1039/c4cp01009d] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Distribution of the number of N atoms and the change in the complex refractive index of unreacted and NH3-aged limonene SOA.
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Affiliation(s)
- J. M. Flores
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
| | - R. A. Washenfelder
- Cooperative Institute for Research in Environmental Sciences
- University of Colorado
- Boulder, USA
- Chemical Sciences Division
- Earth System Research Laboratory
| | - G. Adler
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
| | - H. J. Lee
- Department of Chemistry
- University of California
- Irvine, USA
| | - L. Segev
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
| | - J. Laskin
- Physical Sciences Division
- Pacific Northwest National Laboratory
- Richland, USA
| | - A. Laskin
- Environmental Molecular Sciences Laboratory
- Pacific Northwest National Laboratory
- Richland, USA
| | | | - S. S. Brown
- Chemical Sciences Division
- Earth System Research Laboratory
- National Oceanic and Atmospheric Administration
- Boulder, USA
| | - Y. Rudich
- Department of Earth and Planetary Sciences
- Weizmann Institute of Science
- Rehovot 76100, Israel
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Abstract
During December 2003, symptoms were observed in greenhouse tomato plants in Bet Dagan, Israel that resembled those of Tomato chlorosis virus (ToCV), a crinivirus common in the southeastern United States and southern Europe (2,3). Middle-aged leaves showed interveinal chlorosis, while more mature leaves showed more intense interveinal chlorosis with some interveinal bronzing. Symptoms were associated with the presence of Bemisia tabaci, an efficient vector of ToCV. Total nucleic acids were extracted (1) from middle-aged and mature leaves from two symptomatic plants, as well as from healthy tomato, Physalis wrightii infected with ToCV, and Nicotiana benthamiana infected with Tomato infectious chlorosis virus (TICV), another crinivirus that produces identical symptoms on tomato. Extracts were tested using hybridization with probes specific to the coat protein (CP) gene of ToCV and the HSP70h gene of TICV. Hybridization results identified the presence of ToCV in all samples from symptomatic tomato plants and ToCV-infected P. wrightii, but not in those from healthy tomato or TICV-infected N. benthamiana. TICV was only detected in TICV-infected N. benthamiana. Extracts were also subjected to reverse transcription-polymerase chain reaction using primers specific to the CP gene of ToCV (GenBank Accession No. AY444872; Forward primer: 5' ATGGAGAACAGT GCCGTTGC 3'; Reverse Primer: 5' TTAGCAACCAGTTATCGATGC 3'). All samples from symptomatic tomato and ToCV-infected P. wrightii produced amplicons of the expected size, but no amplicons were produced from extracts of healthy tomato. Laboratory results and observed symptoms confirm the presence of ToCV in symptomatic tomatoes. To our knowledge, this is the first report of ToCV in Israel. References: (1) S. Dellaporta et al. Plant Mol. Biol. Rep. 1:19, 1983. (2) J. Navas-Castillo et al. Plant Dis. 84:835, 2000. (3) G. C. Wisler et al. Phytopathology 88:402, 1998.
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Affiliation(s)
- L Segev
- Department of Virology, Volcani, P.O. Box 6, Bet Dagan 50250, Israel
| | | | - J E Polston
- Department of Plant Pathology, University of Florida, Gainesville 32607
| | - M Lapidot
- Department of Virology, Volcani, P.O. Box 6, Bet Dagan 50250, Israel
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