Alp Yildiz

Dr. Alp Yildiz


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

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

Representative Publications

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24 May 2022 in The Lancet Global Health
Verified
Journal Article
Open access
CSCatherine A Shaw
Catherine A Shaw
RPRiinu Pius
Riinu Pius
TDThomas M Drake
Thomas M Drake
LNLisa Norman
Lisa Norman
AAAdesoji O Ademuyiwa
Adesoji O Ademuyiwa
JLJean Wilguens Lartigue
Jean Wilguens Lartigue
Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide. A multimethods analysis was performed as part of the GlobalSurg 3 study—a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital. Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3·85 [95% CI 2·58–5·75]; p<0·0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63·0% vs 82·7%; OR 0·35 [0·23–0·53]; p<0·0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer. Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised. National Institute for Health and Care Research.

1 January 2017 in Pan African Medical Journal
Verified
Journal Article
Open access
KDKürşat Dikmen
Kürşat Dikmen
HBHasan Bostanci
Hasan Bostanci
HGHuseyin Gobut
Huseyin Gobut
AYAlp Yildiz
Alp Yildiz
OEOnur Ertunc
Onur Ertunc
FTFerit Taneri
Ferit Taneri
Parathyroid carcinomas are rare endocrine tumors which comprise 0.3-5.6% of all causes of hyperparathyroidism. 90% of them are hormonally active, while 10% of them may be non-functional. They mostly occur in a single parathyroid gland. Concurrent involvement of both parathyroid glands is quite rare. A 57-year-old male patient was admitted to emergency department with the complaint of dyspnea. Thorax tomography revealed a retrosternal mass. The mass was thoracoscopically excised by thoracic surgeons. Histopathological examination result of the mass was reported as parathyroid carcinoma. Parathyroid scintigraphy performed and focal activity increase in the lower pole of the left lobe. Parathyroid hormone level was 118 pg/ml and calcium level was measured as 11.4 mg/dl. The patient with these findings was operated and pathological examination of excised left lower parathyroid tissue was reported as carcinoma. In addition, micropapillary carcinoma was detected in left thyroid lobectomy specimen.Our case was also unusual in that double parathyroid carcinoma, which is a rare condition, was hormonally inactive. We aimed to present our case in the light of the literature due to its rare occurrence.

1 July 2020 in Clinical Radiology
Verified
Journal Article
Closed access
PDF file
MCM.N. Cerit
M.N. Cerit
AÖA.Y. Öner
A.Y. Öner
AYAlp Yildiz
Alp Yildiz
ECE. Cindil
E. Cindil
HŞH.N. Şendur
H.N. Şendur
SLS. Leventoğlu
S. Leventoğlu

1 August 2020 in Sao Paulo Medical Journal
Verified
Journal Article
Open access
PDF file
AYAlp Yildiz
Alp Yildiz
EKEmre Kizil
Emre Kizil
AYAybala Yildiz
Aybala Yildiz
Very few data are available for evaluating health-related quality of life among people with irritable bowel syndrome (IBS) and even fewer data are available in relation to anxiety and depression status among these patients. To evaluate the quality of life, anxiety and depression status of patients with IBS. Observational cohort study conducted in a tertiary-care university hospital. Patients who had recently been diagnosed with IBS and who had been followed up for IBS-specific treatment for at least three months were included. A quality of life (QoL) survey, the Beck Anxiety Index (BAI) and the Hamilton Depression Index (HAM-D) were applied to the patients. In total, 274 patients with IBS were included in the study cohort. These patients presented very high baseline scores for anxiety and depression, and very poor QoL results. Our study showed that IBS had a very high impact on these patients, regarding their anxiety and depression levels, alongside very poor results relating to quality of life.

19 May 2020 in Gazi Medical Journal
Verified
Journal Article
Open access
PDF file
AYAlp Yildiz
Alp Yildiz
MCMehmet Cetinkaya
Mehmet Cetinkaya
SLSezai Leventoglu
Sezai Leventoglu
ASAlpaslan Senkoylu
Alpaslan Senkoylu
Throughout human history, many pandemics have broken out and caused great numbers of deaths. As the technological development made quite a huge advancement by the twentieth century, the medical treatment armamentarium had widened its facilities and resources. This brought with sophisticated and competent health care services for people which provided the medical practitioners with higher success rates when fighting against diseases and improved recovery and survival rates. However, during the COVID-19 pandemic, the high transmission rate of the novel SARS-Cov-2 virus has led to the paralysis of the health system and running out of the resources and healthcare workers. Thus, local government healthcare service regulators have begun building up plans to create management algorithms to use the limited resources more efficiently. This paper presents preliminary practical instructions for healthcare providers as a basic foundation for COVID-19 and potential future pandemics. İnsanlık tarihi boyunca çok sayıda salgın ortaya çıkmış ve pek çok ölüme neden olmuştur. 20. Yüzyılda teknolojik gelişmelerde büyük ilerlemeler olmasıyla birlikte tıbbi tedavi usul ve araç kaynakları ve imkanları da genişledi. Bu durum insanlar için sofistike ve yetkin sağlık hizmetini getirdi ve sağlık çalışanlarının hastalıklarla mücadelede yüksek başarı oranları ve daha iyi sağaltma ve sağkalım oranları elde etmelerini sağladı. Fakat, COVID-19 salgını sırasında, yeni tip SARS-Cov-2 virüsünün yüksek bulaş hızı sağlık sistemini felç etti ve kaynakların ve sağlık çalışanlarının yetersiz kalmasına neden oldu. Bu yüzden yerel sağlık hizmeti düzenleyicileri sınırlı miktardaki kaynakları daha etkin bir şekilde kullanabilmek için yönetim algoritması oluşturma planları yapmaya başladılar. Bu makale de sağlık hizmeti sunanlar için COVID-19 ve ileride ortaya çıkabilecek diğer salgınlar için temel oluşturacak öncül pratik öneriler vermektedir.

1 January 2020 in Pan African Medical Journal
Verified
Journal Article
Open access
TETimuçin EROL
Timuçin EROL
BMBulent Mentes
Bulent Mentes
HBHakan Bayri
Hakan Bayri
IOIgbal Osmanov
Igbal Osmanov
SLSezai Leventoglu
Sezai Leventoglu
USUgur Sungurtekin
Ugur Sungurtekin
Introduction: this pilot study aimed to document our results of treating anorectal abscesses with drainage plus loose seton for possible coexisting high fistulas or drainage plus fistulotomy for low tracts at the same operation. Methods: drainage plus fistulotomy were performed only in cases with subcutaneous mucosa, intersphincteric, or apparently low transsphincteric fistula tracts. For all other cases with high transsphincteric fistula or those with questionable sphincter involvement, a loose seton was placed through the tract. Drainage only was carried out in 17 patients. Results: twenty-three patients underwent drainage plus loose seton. Drainage plus fistulotomy were performed in four cases. None of the patients developed recurrent abscess during a follow-up of 12 months. Not surprisingly, the incontinence scores were similar pre and post-operatively (p=0.564). Only minor complications occurred in 4 cases (14.8 percent). Secondary interventions following loose seton were carried out in 13 patients (48.1 percent). At 12 months, drainage only was followed by 10 recurrences (58.8 percent; p<0.0001, compared with concomitant surgery). Conclusion: concomitant loose seton treatment of high fistula tracts associated with anorectal abscess prevents abscess recurrence without significant complications or disturbance of continence. Concomitant fistulotomy for associated low fistulas also aids in the same clinical outcome. Concomitant fistula treatment with the loose seton may suffice in treating the whole disease process in selected cases. Even in patients with high fistula tracts, the loose seton makes fistula surgery simpler with a mature tract. Abscess recurrence is high after drainage only.