LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 81

Search options

  1. Article ; Online: Treatment efficacy for human papillomavirus-related anal squamous cell dysplasia in an under-represented population: human immunodeficiency-negative, non-men having sex with men, and non-transplant population.

    Messick, C A

    Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland

    2019  Volume 22, Issue 1, Page(s) 29–35

    Abstract: Aim: Human papillomavirus (HPV)-related anal squamous cell dysplasia has been well-reported in high-risk (HR) patients [human immunodeficiency virus (HIV)-positive, men having sex with men (MSM) or immune-suppressed transplant recipients]. However, data ...

    Abstract Aim: Human papillomavirus (HPV)-related anal squamous cell dysplasia has been well-reported in high-risk (HR) patients [human immunodeficiency virus (HIV)-positive, men having sex with men (MSM) or immune-suppressed transplant recipients]. However, data are extremely limited for all other patients. This study reports treatment outcomes for HPV-related dysplasia in a population of non-HR patients.
    Method: A retrospective study was performed to review treatment efficacy in non-HR patients diagnosed with anal dysplasia or superficially invasive squamous cell carcinoma of the anus (SISCCA) with at least 12-months' follow-up; HR patients were excluded. Medical records were reviewed for demographics, pathology, cytopathology, treatment and recurrences.
    Results: Forty-one patients were identified (34 women). The median age at diagnosis was 58 years (range 26-85) and median follow-up was 26 months (range 12-51). At diagnosis, 36 patients had anal dysplasia and five patients had SISCCA. Treatment outcomes (resolved versus recurrent) differed between treatment modalities (P = 0.014). Topical and fulguration-only treatment modalities were superior to wide local excision (WLE) (P < 0.006 and P < 0.008, respectively). Fourteen (39%) patients had recurrent dysplasia at a median of 14 months (range 4-62); eight patients developed a second recurrence at a median of 14 months (range 11-26). No SISCCA patient had a recurrence, but two patients progressed to anal cancer after treatment.
    Conclusion: The behaviour of anal dysplasia reported in this under-represented, small group of non-HR patients reveals that treatment for anal dysplasia is not necessarily a single event and nonexcisional treatments may be favourable to WLE. Though the true denominator of this population is unknown, treatment may not prevent the recurrence of dysplasia or progression to cancer, warranting close follow-up.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Alphapapillomavirus ; Anus Neoplasms/therapy ; Anus Neoplasms/virology ; Carcinoma, Squamous Cell/therapy ; Carcinoma, Squamous Cell/virology ; Conservative Treatment/methods ; Electrocoagulation/statistics & numerical data ; Female ; Humans ; Male ; Middle Aged ; Minority Groups/statistics & numerical data ; Papillomavirus Infections/complications ; Papillomavirus Infections/virology ; Precancerous Conditions/therapy ; Precancerous Conditions/virology ; Proctectomy/statistics & numerical data ; Recurrence ; Retrospective Studies ; Treatment Outcome
    Language English
    Publishing date 2019-08-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 1440017-0
    ISSN 1463-1318 ; 1462-8910
    ISSN (online) 1463-1318
    ISSN 1462-8910
    DOI 10.1111/codi.14786
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: A qualitative study of reflective practice in the workplace. Speech-language pathologists have their say.

    Cook, Kate J / Messick, Cheryl / Baylor, Carolyn / McAuliffe, Megan J

    International journal of speech-language pathology

    2023  , Page(s) 1–15

    Abstract: Purpose: Engaging in reflective practice (RP) and demonstrating reflective abilities is an essential graduate skill for speech-language pathologists (SLPs), yet limited studies have examined the perspectives of practicing SLPs and how and why they ... ...

    Abstract Purpose: Engaging in reflective practice (RP) and demonstrating reflective abilities is an essential graduate skill for speech-language pathologists (SLPs), yet limited studies have examined the perspectives of practicing SLPs and how and why they engage in RP. This qualitative study aimed to examine SLPs' experiences and perspectives of RP in diverse workplaces.
    Method: Individual semi-structured interviews were conducted with 30 SLPs working in health, education, or private practice sectors. Interviews were analysed using thematic analysis.
    Result: Three themes were developed from the data, describing what SLPs use RP for, what SLPs perceive as important in order to engage in RP in the workplace, as well as the barriers they have identified, and how SLPs have observed a change in engaging in RP as they have progressed in their careers.
    Conclusion: SLPs described that RP is valued in the workplace for supporting client focused care, problem-solving, and lifelong learning. SLPs wanted time to be protected for RP at all stages of their career and valued the relationships with others as contributing positively to RP. Perceptions of and engagement in RP changed in relation to SLPs' clinical experience. Implications for clinical practice are discussed.
    Language English
    Publishing date 2023-12-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 2402483-1
    ISSN 1754-9515 ; 1754-9507
    ISSN (online) 1754-9515
    ISSN 1754-9507
    DOI 10.1080/17549507.2023.2267193
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Written reflective practice abilities of SLT students across the degree programme.

    Cook, Kate J / Messick, Cheryl / McAuliffe, Megan J

    International journal of language & communication disorders

    2022  Volume 58, Issue 4, Page(s) 994–1016

    Abstract: Background: Written reflective practice (WRP) is a teaching tool used across speech-language therapy (SLT) clinical education programmes. The process aims to support the development of reflective skills required for the workplace (e.g., problem-solving ... ...

    Abstract Background: Written reflective practice (WRP) is a teaching tool used across speech-language therapy (SLT) clinical education programmes. The process aims to support the development of reflective skills required for the workplace (e.g., problem-solving and self-evaluation).
    Aims: This cross-sectional and repeated-measures study design investigated students' demonstration of breadth of WRP across the clinical education programme.
    Methods & procedures: The participants were 77 undergraduate SLT students in their first, second or final professional year of the clinical programme. Participants wrote critical reflections following an interaction with a client/s as part of their clinical education experiences. Formative feedback was provided after each written reflection (WR). In total four WRs per participant were coded for breadth of WRP using a modification of Plack et al.'s coding schema from 2005. This was completed for each of the four time points across the academic year for each professional year.
    Outcomes & results: There was a statistically significant association between time (i.e., professional year of the programme) and likelihood of demonstration of breadth of reflection for the lower level reflective element of 'attend' and higher level reflective element of 're-evaluate'. A positive trend between time and likelihood of demonstration of breadth of reflection was seen for the lower level element of 'reflection-for-action'. Final-professional-year students exhibited significant enhancements in the higher level elements (e.g., 'premise') compared with first- and second-professional-year students.
    Conclusions & implications: This group of SLT students exhibited significant change in breadth of WRP across the degree programme. This finding has positive implications for facilitating WRP with students and using the current coding framework in clinical programmes.
    What this paper adds: What is already known on this subject WRP is one form of reflective practice (RP) used in SLT, allied health, medical and nursing clinical education programmes. Researchers have suggested that RP skills develop over time for students. Previously, studies examining WRP have focused on one off assessment of skill or over a timeframe of 6-10 weeks. Here, we examine SLT students' WRP skills across the degree programme. What this paper adds to existing knowledge SLT students exhibited significant positive change in breadth of WRP across the degree programme as their clinical experience increased. Our results provide quantitative information in support of using RP as a learning tool throughout clinical education programmes for SLT. What are the potential or actual clinical implications of this work? This study offers support for educators of SLT students; for example, how educators can assess WRP, and how educators can foster SLT student skill development with formative feedback and reflective questioning. This study also offers support for student SLT, for example, describing how WRP can be part of their individualized learning approach and provide a purposeful examination of self and clinical skill development.
    MeSH term(s) Humans ; Cross-Sectional Studies ; Educational Status ; Learning ; Problem Solving ; Students ; Language Therapy ; Speech Therapy
    Language English
    Publishing date 2022-12-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1415919-3
    ISSN 1460-6984 ; 1368-2822
    ISSN (online) 1460-6984
    ISSN 1368-2822
    DOI 10.1111/1460-6984.12815
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Two-Stage Turnbull-Cutait Pull-Through Coloanal Anastomosis for Low Rectal Cancers.

    Sun, Ryan / Messick, Craig / Wei, Lee-Jen

    JAMA surgery

    2020  Volume 156, Issue 2, Page(s) 202–203

    MeSH term(s) Anastomosis, Surgical ; Digestive System Surgical Procedures ; Humans ; Rectal Neoplasms/surgery
    Language English
    Publishing date 2020-12-05
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 2701841-6
    ISSN 2168-6262 ; 2168-6254
    ISSN (online) 2168-6262
    ISSN 2168-6254
    DOI 10.1001/jamasurg.2020.5189
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: The Management and Prevention of Anal Squamous Cell Carcinoma.

    Eng, Cathy / Messick, Craig / Glynne-Jones, Rob

    American Society of Clinical Oncology educational book. American Society of Clinical Oncology. Annual Meeting

    2019  Volume 39, Page(s) 216–225

    Abstract: Our aim is to discuss the current established management of care and associated prevention strategies of anal squamous cell carcinoma (SCCA). In general, the development of SCCA is commonly linked to a prior history of HPV. Unfortunately, HPV vaccination ...

    Abstract Our aim is to discuss the current established management of care and associated prevention strategies of anal squamous cell carcinoma (SCCA). In general, the development of SCCA is commonly linked to a prior history of HPV. Unfortunately, HPV vaccination continues to be underutilized in the United States versus other countries. Increased acknowledgment of the importance of HPV vaccination as an anticancer vaccine should be encouraged. The present standard of care is primary chemoradiotherapy (CRT), which results in a high level of disease control for small, early-stage SCCA. More advanced cancers still fare poorly with this treatment, and the disease relapses locoregionally in the majority of cases (30%-50% of patients), resulting in an abdominoperineal resection. Current treatment recommendations are associated with substantial morbidity; alternative radiation doses and/or novel combinations of agents with CRT are needed to improve quality of life and oncologic outcomes. Cytotoxic chemotherapy remains the standard of care for treatment-naïve patients with metastatic disease, with a possible new treatment paradigm of carboplatin/weekly paclitaxel. In addition, immune checkpoint inhibition appears to have a promising role in the setting of patients with refractory disease. Several clinical trials with immunotherapeutic and vaccine approaches for locally advanced and metastatic anal cancer are ongoing, as are HPV-agnostic umbrella trials. Whenever possible, clinical trial enrollment is always encouraged for further therapeutic development in the setting of a rare cancer, given the potentially substantial global impact for other HPV-associated malignancies.
    MeSH term(s) Anus Neoplasms/diagnosis ; Anus Neoplasms/etiology ; Anus Neoplasms/prevention & control ; Anus Neoplasms/therapy ; Carcinoma, Squamous Cell/diagnosis ; Carcinoma, Squamous Cell/etiology ; Carcinoma, Squamous Cell/prevention & control ; Carcinoma, Squamous Cell/therapy ; Combined Modality Therapy ; Diagnostic Imaging ; Disease Management ; Disease Susceptibility ; Early Detection of Cancer ; Humans ; Neoplasm Staging ; Risk Factors ; Treatment Outcome
    Language English
    Publishing date 2019-05-17
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2431126-1
    ISSN 1548-8756 ; 1548-8748
    ISSN (online) 1548-8756
    ISSN 1548-8748
    DOI 10.1200/EDBK_237433
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: The value of national accreditation program for rectal cancer: A survey of accredited programs and programs seeking accreditation.

    Kapadia, Muneera R / Senatore, Peter J / Messick, Craig / Hull, Tracy L / Shaffer, Virginia O / Morris, Arden M / Dietz, David W / Wexner, Steven D / Wick, Elizabeth C

    Surgery

    2024  Volume 175, Issue 4, Page(s) 1007–1012

    Abstract: Background: Significant variation in rectal cancer care has been demonstrated in the United States. The National Accreditation Program for Rectal Cancer was established in 2017 to improve the quality of rectal cancer care through standardization and ... ...

    Abstract Background: Significant variation in rectal cancer care has been demonstrated in the United States. The National Accreditation Program for Rectal Cancer was established in 2017 to improve the quality of rectal cancer care through standardization and emphasis on a multidisciplinary approach. The aim of this study was to understand the perceived value and barriers to achieving the National Accreditation Program for Rectal Cancer accreditation.
    Methods: An electronic survey was developed, piloted, and distributed to rectal cancer programs that had already achieved or were interested in pursuing the National Accreditation Program for Rectal Cancer accreditation. The survey contained 40 questions with a combination of Likert scale, multiple choice, and open-ended questions to provide comments. This was a mixed methods study; descriptive statistics were used to analyze the quantitative data, and thematic analysis was used to analyze the qualitative data.
    Results: A total of 85 rectal cancer programs were sent the survey (22 accredited, 63 interested). Responses were received from 14 accredited programs and 41 interested programs. Most respondents were program directors (31%) and program coordinators (40%). The highest-ranked responses regarding the value of the National Accreditation Program for Rectal Cancer accreditation included "improved quality and culture of rectal cancer care," "enhanced program organization and coordination," and "challenges our program to provide optimal, high-quality care." The most frequently cited barriers to the National Accreditation Program for Rectal Cancer accreditation were cost and lack of personnel.
    Conclusion: Our survey found significant perceived value in the National Accreditation Program for Rectal Cancer accreditation. Adhering to standards and a multidisciplinary approach to rectal cancer care are critical components of a high-quality care rectal cancer program.
    MeSH term(s) Humans ; United States ; Internship and Residency ; Surveys and Questionnaires ; Rectal Neoplasms/therapy ; Accreditation ; Data Accuracy
    Language English
    Publishing date 2024-01-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 202467-6
    ISSN 1532-7361 ; 0039-6060
    ISSN (online) 1532-7361
    ISSN 0039-6060
    DOI 10.1016/j.surg.2023.12.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Salvage Treatment of Recurrent or Persistent Anal Squamous Cell Carcinoma: The Role of Multi-modality Therapy.

    Damron, Ethan P / McDonald, Jordan / Rooney, Michael K / Das, Prajnan / Ludmir, Ethan B / Minsky, Bruce D / Messick, Craig / Chang, George J / Morris, Van K / Holliday, Emma B

    Clinical colorectal cancer

    2023  Volume 23, Issue 1, Page(s) 85–94

    Abstract: Background: The standard treatment for recurrent or persistent anal squamous cell carcinoma is surgical salvage, but disease control and survival are suboptimal.: Patients/methods: Patients treated for recurrent or persistent anal squamous cell ... ...

    Abstract Background: The standard treatment for recurrent or persistent anal squamous cell carcinoma is surgical salvage, but disease control and survival are suboptimal.
    Patients/methods: Patients treated for recurrent or persistent anal squamous cell carcinoma at our institution from 2002 to 2022 were included. Patients were classified by type of salvage treatment received: surgery alone vs. reirradiation followed by surgery and by whether they received intraoperative radiation at the time of surgery. Clinical and pathologic variables were collected and assessed for association with risk of second local recurrence and death from any cause.
    Results: Sixty four patients were included; 55(85.9%) were treated with surgery alone and 9 (14.1%) were treated with reirradiation followed by surgery. Median (IQR) follow up from the time of salvage treatment was 40.0 (20.3-68.0) months. The 3-year cumulative incidence of second local recurrence (95% CI) after salvage surgery was 36% (24%-48%); 39% (26%-52%) for patients treated with surgery alone and 15% (0.46%-51%) for patients treated with reirradiation followed by surgery. Factors associated with increased second local recurrence after salvage surgery included a locoregional recurrence, lymphovascular space invasion and positive surgical margins. The 3-year overall survival (95% CI) after salvage surgery was 70% (59%-83%); 68% (7%-56%) after surgery alone and 89% (10.5%-70.6%) after reirradiation followed by surgery. Factors associated with worse overall survival included male sex, a larger recurrent tumor and positive surgical margins.
    Conclusions: Approximately 60% of patients achieved pelvic control after salvage therapy for recurrent or persistent anal squamous cell carcinoma. Although receipt of reirradiation and intraoperative radiation were not associated with improved second local recurrence or overall survival in our cohort, patients with positive surgical margins and lymphovascular space invasion on surgical pathology had higher rates of pelvic recurrence after salvage surgery and may benefit from escalated salvage therapy.
    MeSH term(s) Humans ; Male ; Salvage Therapy ; Margins of Excision ; Carcinoma, Squamous Cell/pathology ; Anus Neoplasms/therapy ; Anus Neoplasms/pathology ; Neoplasm Recurrence, Local/epidemiology ; Neoplasm Recurrence, Local/therapy ; Retrospective Studies ; Combined Modality Therapy ; Treatment Outcome
    Language English
    Publishing date 2023-12-13
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2112638-0
    ISSN 1938-0674 ; 1533-0028
    ISSN (online) 1938-0674
    ISSN 1533-0028
    DOI 10.1016/j.clcc.2023.12.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Daily Vaginal Dilator Use During Radiation for Women With Squamous Cell Carcinoma of the Anus: Vaginal Wall Dosimetry and Patient-Reported Sexual Function.

    Arzola, Angelica / Chang, Enoch / Rooney, Michael K / Corrigan, Kelsey / Das, Prajnan / Ludmir, Ethan B / Koay, Eugene J / Minsky, Bruce D / Smith, Grace L / Messick, Craig / Morris, Van K / Nebgen, Denise / Crane, Christopher H / Holliday, Emma B

    Practical radiation oncology

    2023  Volume 14, Issue 2, Page(s) e105–e116

    Abstract: Purpose: At our institution, we treat patients with a daily vaginal dilator (VD) during chemoradiation (CRT) for squamous cell carcinoma of the anus (SCCA). We evaluated compliance with daily VD use, radiation dose to the vaginal wall (VW), and anterior ...

    Abstract Purpose: At our institution, we treat patients with a daily vaginal dilator (VD) during chemoradiation (CRT) for squamous cell carcinoma of the anus (SCCA). We evaluated compliance with daily VD use, radiation dose to the vaginal wall (VW), and anterior vaginal wall (AVW), and patient-reported long-term sexual function.
    Methods and materials: We included women with SCCA who received definitive, intensity-modulated radiation therapy-based CRT. Women who were alive without evidence of disease received a patient-reported outcome survey, which included the Female Sexual Function Index (FSFI). We identified factors associated with FSFI, such as radiation dose to the VW and AVW using linear regression models and used Youden index analysis to estimate a dose cutoff to predict sexual dysfunction.
    Results: Three hundred thirty-nine consecutively treated women were included in the analysis; 285 (84.1%) were treated with a daily VD. Of 184 women alive without disease, 90 patients (49%) completed the FSFI, and 51 (56.7%) were sexually active with valid FSFI scores. All received therapy with a daily VD. Forty-one women (80%) had sexual dysfunction. Univariate analysis showed higher dose to 50% (D50%) of the AVW correlated with worse FSFI (β -.262; P = .043), worse desire FSFI subscore (β -.056; P = .003), and worse pain FSFI subscore (β -.084; P = .009). Younger age correlated with worse pain FSFI subscale (β .067; P = .026). Age (β .070; P = .013) and AVW D50% (β -.087; P = .009) were significant on multivariable analysis. AVW D50% >48 Gy predicted increased risk of sexual dysfunction.
    Conclusions: Daily VD use is safe and well tolerated during CRT for SCCA. Using a VD during treatment to displace the AVW may reduce the risk for sexual dysfunction. Limiting the AVW D50% <48 Gy may further reduce the risk but additional data are needed to validate this constraint.
    MeSH term(s) Female ; Humans ; Anal Canal ; Vagina/pathology ; Sexual Dysfunction, Physiological/complications ; Carcinoma, Squamous Cell/pathology ; Pain/etiology
    Language English
    Publishing date 2023-10-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2655748-4
    ISSN 1879-8519 ; 1879-8500
    ISSN (online) 1879-8519
    ISSN 1879-8500
    DOI 10.1016/j.prro.2023.10.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: International consensus definition of low anterior resection syndrome.

    Keane, C / Fearnhead, N S / Bordeianou, L / Christensen, P / Espin Basany, E / Laurberg, S / Mellgren, A / Messick, C / Orangio, G R / Verjee, A / Wing, K / Bissett, I

    Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland

    2020  Volume 22, Issue 3, Page(s) 331–341

    Abstract: Aim: Low anterior resection syndrome (LARS) is pragmatically defined as disordered bowel function after rectal resection leading to a detriment in quality of life. This broad characterization does not allow for precise estimates of prevalence. The LARS ... ...

    Abstract Aim: Low anterior resection syndrome (LARS) is pragmatically defined as disordered bowel function after rectal resection leading to a detriment in quality of life. This broad characterization does not allow for precise estimates of prevalence. The LARS score was designed as a simple tool for clinical evaluation of LARS. Although the LARS score has good clinical utility, it may not capture all important aspects that patients may experience. The aim of this collaboration was to develop an international consensus definition of LARS that encompasses all aspects of the condition and is informed by all stakeholders.
    Method: This international patient-provider initiative used an online Delphi survey, regional patient consultation meetings, and an international consensus meeting. Three expert groups participated: patients, surgeons and other health professionals from five regions (Australasia, Denmark, Spain, Great Britain and Ireland, and North America) and in three languages (English, Spanish, and Danish). The primary outcome measured was the priorities for the definition of LARS.
    Results: Three hundred twenty-five participants (156 patients) registered. The response rates for successive rounds of the Delphi survey were 86%, 96% and 99%. Eighteen priorities emerged from the Delphi survey. Patient consultation and consensus meetings refined these priorities to eight symptoms and eight consequences that capture essential aspects of the syndrome. Sampling bias may have been present, in particular, in the patient panel because social media was used extensively in recruitment. There was also dominance of the surgical panel at the final consensus meeting despite attempts to mitigate this.
    Conclusion: This is the first definition of LARS developed with direct input from a large international patient panel. The involvement of patients in all phases has ensured that the definition presented encompasses the vital aspects of the patient experience of LARS. The novel separation of symptoms and consequences may enable greater sensitivity to detect changes in LARS over time and with intervention.
    MeSH term(s) Consensus ; Humans ; Postoperative Complications ; Quality of Life ; Rectal Neoplasms ; Syndrome
    Language English
    Publishing date 2020-02-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1440017-0
    ISSN 1463-1318 ; 1462-8910
    ISSN (online) 1463-1318
    ISSN 1462-8910
    DOI 10.1111/codi.14957
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Endoscopic and imaging outcomes of PD-1 therapy in localised dMMR colorectal cancer.

    Fox, Daniel A / Bhamidipati, Deepak / Konishi, Tsuyoshi / Kaur, Harmeet / You, Nancy / Raghav, Kanwal P S / Ge, Phillip S / Messick, Craig / Johnson, Benny / Morris, Van K / Thomas, Jane V / Shah, Preksha / Bednarski, Brian K / Kopetz, Scott / Chang, George J / Ludford, Kaysia / Higbie, Victoria Serpas / Overman, Michael J

    European journal of cancer (Oxford, England : 1990)

    2023  Volume 194, Page(s) 113356

    Abstract: Background: Neoadjuvant immune checkpoint blockade (IO) is emerging as a therapeutic option for patients with deficient mismatch repair (dMMR) colorectal cancer (CRC) given high pathological response rates. The aim of the study was to characterise ... ...

    Abstract Background: Neoadjuvant immune checkpoint blockade (IO) is emerging as a therapeutic option for patients with deficient mismatch repair (dMMR) colorectal cancer (CRC) given high pathological response rates. The aim of the study was to characterise imaging and endoscopic response to IO.
    Methods: A retrospective analysis of patients with localised dMMR CRC that received at least one cycle of neoadjuvant anti-PD-1 therapy was conducted. Endoscopy, imaging, and pathological outcomes were reviewed to determine response to treatment according to standardised criteria.
    Results: Thirty-eight patients had received IO for the treatment of localised CRC (median eight cycles). Among evaluable cases (n = 31 for endoscopy and n = 34 for imaging), the best endoscopic response was complete response (CR) in 45% of cases, and the best radiographic response was CR in 23% of cases. Imaging CR rate after ≤4 cycles of IO (n = 1) was 6% compared to 44% after >4 IO cycles (n = 7). Among 28 patients with imaging and endoscopy available, a discrepancy in best response was noted in 15 (54%) cases. At a median follow-up of 28.2 months from IO start, 18 patients underwent surgical resection of which 11 (61%) had pathological CR (pCR). Despite pCR or no evidence of progression ≥6 months after completion of IO among non-operatively managed patients, 72% and 42% of patients had non-CR on imaging and endoscopy, respectively.
    Conclusions: Discrepancies between imaging and endoscopy are prevalent, and irregularities identified on these modalities can be identified despite pathological remission. Improved clinical response criteria are warranted.
    MeSH term(s) Humans ; Colorectal Neoplasms/diagnostic imaging ; Colorectal Neoplasms/drug therapy ; Colorectal Neoplasms/genetics ; DNA Mismatch Repair ; Endoscopy ; Microsatellite Instability ; Neoadjuvant Therapy ; Programmed Cell Death 1 Receptor/antagonists & inhibitors ; Retrospective Studies ; Immune Checkpoint Inhibitors/therapeutic use
    Chemical Substances Programmed Cell Death 1 Receptor ; Immune Checkpoint Inhibitors
    Language English
    Publishing date 2023-09-22
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Comment
    ZDB-ID 82061-1
    ISSN 1879-0852 ; 0277-5379 ; 0959-8049 ; 0964-1947
    ISSN (online) 1879-0852
    ISSN 0277-5379 ; 0959-8049 ; 0964-1947
    DOI 10.1016/j.ejca.2023.113356
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top