Ahmad Sayasneh

Prof. Ahmad Sayasneh

Faculty of Life Sciences and Medicine, King’s College London, Guy’s Campus, Great Maze Pond, London, SE1 1UL, United Kingdom
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Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 July 2011 in ISRN Obstetrics and Gynecology
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Ahmad SayasnehAhmad Sayasneh
Ahmad Sayasneh
DTDimitris Tsivos
Dimitris Tsivos
RCRobin Crawford
Robin Crawford
Introduction. Endometriosis is one of the most common benign disorders which affects 10–15% of all women in reproductive age. The association between endometriosis and ovarian cancer has been frequently described in the medical literature. Purpose. To evaluate the literature for evidence of a correlation between endometriosis and ovarian cancer. Method. the English language literature (online MEDLINE and EMBASE database) was searched using the keywords endometriosis combined with cancer, tumour, tumor, carcinoma, or adenocarcinoma. All abstracts between January 1985 and August 2010 were reviewed. Full relevant articles were critically assessed. Reference lists of included studies were checked. Results. Seven out of the eight studies, included in our review, have shown an increased risk of ovarian cancer. However, the effect size is modest (OR, RR, and SIR) ranging between 1.32 and 1.9 (95% CI). A causative relationship between the two incidences cannot be confirmed. There is increasing evidence on the role of genetic mutations in ovarian clear-cell and endometrioid carcinoma developing from endometriosis. Conclusion. More evidence is needed before suggesting any change in the current management of endometriosis.

19 January 2024 in Cancers
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SMSian Mitchell
Sian Mitchell
MNManolis Nikolopoulos
Manolis Nikolopoulos
Alaa ElzarkaAlaa Elzarka
Alaa Elzarka
DADHURGHAM AL-KARAWI
DHURGHAM AL-KARAWI
SAShakir Al-Zaidi
Shakir Al-Zaidi
Ahmad SayasnehAhmad Sayasneh
Ahmad Sayasneh
Ovarian cancer is the sixth most common malignancy, with a 35% survival rate across all stages at 10 years. Ultrasound is widely used for ovarian tumour diagnosis, and accurate pre-operative diagnosis is essential for appropriate patient management. Artificial intelligence is an emerging field within gynaecology and has been shown to aid in the ultrasound diagnosis of ovarian cancers. For this study, Embase and MEDLINE databases were searched, and all original clinical studies that used artificial intelligence in ultrasound examinations for the diagnosis of ovarian malignancies were screened. Studies using histopathological findings as the standard were included. The diagnostic performance of each study was analysed, and all the diagnostic performances were pooled and assessed. The initial search identified 3726 papers, of which 63 were suitable for abstract screening. Fourteen studies that used artificial intelligence in ultrasound diagnoses of ovarian malignancies and had histopathological findings as a standard were included in the final analysis, each of which had different sample sizes and used different methods; these studies examined a combined total of 15,358 ultrasound images. The overall sensitivity was 81% (95% CI, 0.80–0.82), and specificity was 92% (95% CI, 0.92–0.93), indicating that artificial intelligence demonstrates good performance in ultrasound diagnoses of ovarian cancer. Further prospective work is required to further validate AI for its use in clinical practice.

1 October 2010 in Journal of Obstetrics and Gynaecology
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Ahmad SayasnehAhmad Sayasneh
Ahmad Sayasneh
HJH. Johnson
H. Johnson
Synthetic mesh erosion is a recognised complication for pelvic floor repair surgery which occurs in 1–10% of patients. Our study aimed to evaluate the different risk factors involved in synthetic mesh erosion complicating vaginal reconstructive surgery at a general district hospital. A retrospective audit of 133 vaginal mesh reconstructive operations at Hinchingbrooke Hospital, Cambridgeshire, UK, was carried out. A total of 14 (10.53%) cases of mesh erosion into the vagina were reported. An increased rate of mesh erosion was associated with concurrent vaginal hysterectomy and previous vaginal reconstructive surgery (p < 0.05, RR 3.222, 95% CI 1.071–9.698 and p < 0.05, RR 4.571, 95% CI 1.58–13.23, respectively). The use of Safil® suture material (polyglycolic acid) was associated with a higher incidence of Gynecare Gynemesh® erosion (p < 0.05, OR = 9, 95% CI 1.073–75.5). It is concluded that this audit has shown the importance of analysing outcomes with all changes of practice, including the change of suture provider.

21 October 2021 in Journal of Clinical Medicine
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Mustafa Zelal MuallemMustafa Zelal Muallem
Mustafa Zelal Muallem
Ahmad SayasnehAhmad Sayasneh
Ahmad Sayasneh
RARobert Armbrust
Robert Armbrust
JSJalid Sehouli
Jalid Sehouli
AMAndrea Miranda
Andrea Miranda
(1) Background: Sentinel lymph node staging (SLN) with indocyanine green (ICG) in cervical cancer is the standard of care in most national and international guidelines. However, the vast majority of relevant studies about the safety and feasibility of this method are conducted on minimally invasive surgery; (2) Methods: This study is a retrospective analysis of a retrospective collected database of 76 consecutive patients with cervical cancers, who were operated laparoscopically (50%), or laparotomy (50%). Sentinel nodes were defined as the ICG-positive pelvic nodes in the first and second echelons. False negative cases were defined as positive non-sentinel lymph nodes despite successful sentinel mapping or failed mapping bilaterally by per-patient assessment or unilaterally by pelvic sidewall assessment; (3) Results: Regardless of the approach (open or laparoscopic), the SLN technique achieved a total sensitivity, specificity, and negative predictive value (NPV) of 94.7%, 98.6%, and 94.7%, respectively in the entire sample. The bilateral detection rate was as high as 93.4% with identical results in both approaches. The sensitivity and NPV for SNL in open surgery was found to be similar to minimal access surgery; (4) Conclusions: ICG and SPY-PHI technique is a reliable tool to detect sentinel lymph nodes in cervical cancer during laparotomy.

26 March 2022 in Cancers
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Mustafa Zelal MuallemMustafa Zelal Muallem
Mustafa Zelal Muallem
JSJalid Sehouli
Jalid Sehouli
AMAndrea Miranda
Andrea Miranda
HPHelmut Plett
Helmut Plett
Ahmad SayasnehAhmad Sayasneh
Ahmad Sayasneh
IHImad Hatoum
Imad Hatoum
(1) Background: plastic reconstruction in vulvar surgery can lead to a better treatment outcome than primary closure. This study aims to compare the preoperative parameters (co-morbidities and tumor size) and postoperative results (tumor free margins and wound healing) between the primary closure and reconstructive surgery after vulvar cancer surgery; (2) Methods: this is a retrospective analysis of prospectively collected data from 2009 to 2021 at a tertiary cancer institution; (3) Results: 177 patients were included in the final analysis (51 patients had primary closure PC and 126 had reconstructive surgery RS). About half (49%) of the PC patients had no co-morbidities (p = 0.043). The RS group had a 45 mm median maximal tumor diameter compared to the PC group’s 23 mm (p = 0.013). More than 90% of RS and 80% of PC had tumor-free margins (p = 0.1). Both groups had anterior vulvar excision as the most common surgery (52.4% RS vs. 23.5% PC; p = 0.001). Both groups had identical rates of wound healing disorders. In a median follow-up of 39 months; recurrent disease was found in 23.5% of PC vs. 10.3% in RS (p = 0.012). In terms of overall survival there was no significant difference between the both groups; (4) Conclusions: reconstructive vulvar surgery enables enhanced complete resection rates of larger vulvar tumors with better anatomical restoration and a comparable wound recovery in comparison to primary closure. This results in a lower recurrence rate despite the increased tumor volume.

17 August 2023 in Medicina
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IAIsmail A Al-Badawi
Ismail A Al-Badawi
OAOsama Alomar
Osama Alomar
SASaud Alsehaimi
Saud Alsehaimi
MJMohammed Ziad Jamjoom
Mohammed Ziad Jamjoom
NANadia Ahmed Abdulmalik
Nadia Ahmed Abdulmalik
AAAhmed Abu-Zaid
Ahmed Abu-Zaid
Background and Objectives: Cardiovascular disease (CVD) is a major contributor to the high mortality rate among individuals with ovarian cancer. Nevertheless, there is limited understanding regarding the specific patient attributes that might impact the risk of CVD in this group. Materials and Methods: A retrospective cohort study was performed using the SEER database to analyze primary ovarian cancer cases from 2000 to 2019. Multivariable logistic regression analysis was employed to identify patient characteristics linked to cardiovascular mortality. Results: The cohort included 41,930 cases of patients who were alive, 54,829 cases of cancer-related deaths, 3003 cases of cardiovascular-related deaths, and 10,238 cases with other causes of death. Poorly differentiated cancer cells and distant metastasis were associated with a higher risk of cardiovascular mortality. Logistic regression analysis identified age, year of diagnosis, race, laterality, and staging as significant risk factors for cardiovascular cause of death. The risk of cardiovascular cause of death was lower in patients aged 31–60 and higher in those aged over 60 years old, and the risk also increased with a later year of diagnosis. Patients who were not white were at a higher risk of cardiovascular cause of death. Additionally, bilateral ovarian cancer and distant staging disease were linked to elevated risks of cardiovascular cause of death. Conclusion: Cardiovascular mortality is a significant concern in ovarian cancer patients, and several patient characteristics are associated with an increased risk. Our study suggests that targeted interventions to improve cardiovascular health in high-risk patients, such as those with comorbidities or an advanced stage at diagnosis, may improve survival in this population.