Ahmet Kayalı

Dr. Ahmet Kayalı


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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Verified
Journal Article
Open access
PDF file
AKAhmet Kayalı
Ahmet Kayalı
Ejder Saylav BoraEjder Saylav Bora
Ejder Saylav Bora
HAHüseyin ACAR
Hüseyin ACAR
OEOytun Erbaş
Oytun Erbaş
Due to its rising global prevalence, liver failure treatments are urgently needed. Sinomenine (SIN), an alkaloid from sinomenium acutum, is being studied for its liver-repair properties due to Acetaminophen (APAP) overdose. SIN’s effect on APAP-induced hepatotoxicity in rats was examined histologically and biochemically. Three groups of 30 adult male Wistar rats were created: control, APAP-only, and APAP + SIN. Histopathological and biochemical analyses were performed on liver samples after euthanasia. SIN is significantly protected against APAP damage. Compared to APAP-only, SIN reduced cellular injury and preserved hepatocellular architecture. The APAP + SIN Group had significantly lower ALT, MDA, and GSH levels, protecting against hepatocellular damage and oxidative stress. SIN also had dose-dependent antioxidant properties. When examining critical regulatory proteins, SIN partially restored Sirtuin 1 (SIRT1) levels. While BMP-7 levels were unaffected, histopathological evidence and hepatocyte damage percentages supported SIN’s liver-restorative effect. SIN protected and repaired rats’ livers from APAP-induced liver injury. This study suggests that SIN may treat acute liver damage, warranting further research into its long-term effects, optimal dosage, and clinical applications. These findings aid liver-related emergency department interventions and life-saving treatments.

1 June 2021 in Asian Journal of Surgery
Verified
Journal Article
Open access
UPUMUT PAYZA
UMUT PAYZA
AKAhmet Kayalı
Ahmet Kayalı
SBSerkan Bilgin
Serkan Bilgin
ZKZeynep Karakaya
Zeynep Karakaya
FTFatih Esad Topal
Fatih Esad Topal
/Objective: Ischemia is a leading cause of morbidity in Mechanical Intestinal Obstruction (MIO) in which the timing of decisions of whether to proceed to surgical or conservative treatment is critical in emergency departments (ED). While advanced technological options are available, patients may be negatively affected by the application of contrast agents or radiation. The use of ultrasound is limited because of the air in the intestines does not allow a good field of vision. While biomarkers can be considered as a good alternative option at this point. In the present study we examine the effect of hemogram and blood gas parameters on early surgical decision-making in MIO patients. Involved in this observational prospective study were 264 patients diagnosed with MIO who presented to the Department of Emergency Medicine, Ataturk Research and Training Hospital, Katip Celebi University between February 2018 and February 2019. Contrast-enhanced tomography (CECT) and laboratory results of the patients were recorded. Pathology reports of the patients who underwent surgery were collected. Laboratory data were analyzed by comparing CECT and pathology reports. In a ROC analysis of the laboratory values of the patients who were diagnosed with ileus, the sensitivity was calculated as 80% and the specificity was 57.7 in values above WBC>10.75 (109/L), 96.6%, and the specificity was 31.1% in N/L > 2.9. For intestinal ischemia, the cut-off values were WBC> 12.6 and N/L > 3.2, Lactate >2.8 mmol/L and B.E < -3.6 mmol/L. Diagnoses of ileus are based on the results examinations and imaging methods. More data are needed to support decisions on the timing of surgery in ED. WBC, N/L, Lactate and Base Excess indicate an ischemic segment. When the parameters are evaluated together, they strongly support early surgical decision-making regarding the treatment of intestinal ischemia.

31 March 2023 in Cukurova Medical Journal
Verified
Journal Article
Open access
PDF file
SBSerkan Bi̇lGi̇n
Serkan Bi̇lGi̇n
AYAdnan Yamanoğlu
Adnan Yamanoğlu
AKAhmet Kayalı
Ahmet Kayalı
UPUMUT PAYZA
UMUT PAYZA
MEMEHMET GÖKTUĞ EFGAN
MEHMET GÖKTUĞ EFGAN
SKSelçuk Kaya
Selçuk Kaya
Purpose: The purpose of this study is to describe long COVID-19 symptoms in patients receiving outpatient treatment. Materials and Methods: This prospective, observational, descriptive study was conducted in the COVID-19 clinic of a university hospital in February-May 2022. Patients who applied to the outpatient clinic and were diagnosed with COVID-19 were included in the study. Patients were follow up for prolonged COVID-19 symptoms for a 12-week period. It was investigated whether there was a relationship between long COVID-19 symptoms frequency and gender, age and blood type. Results: At least one long COVID symptom was observed in 23% of 7139 patients included in the study. Myalgia was the most common symptom detected in 4.33% of all patients. Cough and loss of taste/smell were the most common symptoms in women, and dizziness in men. The frequency of 26 of 29 symptoms varied with age. While the symptoms most affected by the Body Mass Index were peripheral neuropathy and tinnitus, the least affected symptoms were loss of taste/smell, anxiety and depression. Conclusion: Long COVID symptoms were widely detected in COVID-19 outpatients. Age, gender and BMI may be factors affecting long COVID symptoms.

22 November 2022 in Istanbul Medical Journal
Verified
Journal Article
Closed access
MEMEHMET GÖKTUĞ EFGAN
MEHMET GÖKTUĞ EFGAN
UPUMUT PAYZA
UMUT PAYZA
OÇOsman Sezer Çınaroğlu
Osman Sezer Çınaroğlu
HAHüseyin ACAR
Hüseyin ACAR
AKAhmet Kayalı
Ahmet Kayalı

29 August 2024 in Tomography
Verified
Journal Article
Open access
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AKAhmet Kayalı
Ahmet Kayalı
DADuygu Burcu Arda
Duygu Burcu Arda
Ejder Saylav BoraEjder Saylav Bora
Ejder Saylav Bora
Yigit UyanıkgilYigit Uyanıkgil
Yigit Uyanıkgil
ÖAÖzüm Atasoy
Özüm Atasoy
OEOytun Erbaş
Oytun Erbaş
Background: Radiation-induced lung injury (RILI), a serious side effect of thoracic radiotherapy, can lead to acute radiation pneumonitis (RP) and chronic pulmonary fibrosis (PF). Despite various interventions, no effective protocol exists to prevent pneumonitis. Oxytocin (OT), known for its anti-inflammatory, antiapoptotic, and antioxidant properties, has not been explored for its potential in mitigating RILI. Materials and Methods: This study involved 24 female Wistar albino rats, divided into three groups: control group, radiation (RAD) + saline, and RAD + OT. The RAD groups received 18 Gy of whole-thorax irradiation. The RAD + OT group was treated with OT (0.1 mg/kg/day) intraperitoneally for 16 weeks. Computerizing tomography (CT) imaging and histopathological, biochemical, and blood gas analyses were performed to assess lung tissue damage and inflammation. Results: Histopathological examination showed significant reduction in alveolar wall thickening, inflammation, and vascular changes in the RAD + OT group compared to the RAD + saline group. Biochemical analysis revealed decreased levels of TGF-beta, VEGF, and PDGF, and increased BMP-7 and prostacyclin in the RAD + oxytocin group (p < 0.05). Morphometric analysis indicated significant reductions in fibrosis, edema, and immune cell infiltration. CT imaging demonstrated near-normal lung parenchyma density in the RAD + oxytocin group (p < 0.001). Conclusion: Oxytocin administration significantly mitigates radiation-induced pneumonitis in rats, implying that is has potential as a therapeutic agent for preventing and treating RILI.

4 October 2024 in Diagnostics
Verified
Journal Article
Open access
PDF file
Efe KanterEfe Kanter
Efe Kanter
AKAhmet Kayalı
Ahmet Kayalı
OÇOsman Sezer Çınaroğlu
Osman Sezer Çınaroğlu
AYAdnan Yamanoğlu
Adnan Yamanoğlu
Ejder Saylav BoraEjder Saylav Bora
Ejder Saylav Bora
FTFatih Esad Topal
Fatih Esad Topal
Objectives: To evaluate the diagnostic accuracy of carotid artery compression using a point-of-care ultrasound probe (POCUS-CAC) in reducing pulse check times and facilitating the detection of the return of spontaneous circulation (ROSC) during cardiopulmonary resuscitation (CPR) compared to manual palpation (MP). The secondary aim of the study is to assess the ability of POCUS-CAC to detect ROSC during ongoing chest compressions. Methods: This prospective study was conducted in a tertiary emergency department between January and June 2023. During CPR, POCUS-CAC was performed by placing a linear ultrasound probe transversely on the lateral neck to assess the compressibility of the carotid artery. Complete compression of the artery without any visible pulsation indicated no ROSC, while resistance to compression or partial compression suggested the presence of ROSC. Simultaneously, another clinician performed manual palpation of the femoral artery. The primary outcome assessed in this study was comparing ROSC detection between POCUS-CAC and traditional methods, and the secondary outcome was comparing the time taken to detect ROSC with each method, and the ability to detect ROSC during ongoing chest compressions. Results: The study included 41 cardiac arrest patients and analyzed 496 MP pulse and 1984 POCUS-CAC checks. The mean time to identify a pulse using POCUS-CAC was significantly shorter, at 2.3 (0.5–7.8, SD ± 1.2, 95% CI [2.25, 2.35]) s, compared to 4.7 (2.0–10.5, SD ± 1.8, 95% CI [4.54, 4.86]) s with MP (p = 0.004). Additionally, 52.9% of ROSC cases were detected earlier using POCUS-CAC, even during ongoing chest compressions. The sensitivity of POCUS-CAC was 100% (95% CI [80.5–100%]) and the specificity was 87.5% (95% CI [67.6–97.3%]). The POCUS-CAC method required less than 5 s in 99.996% of cases. Conclusions: POCUS-CAC significantly reduces pulse check times and enhances the early detection of ROSC during CPR, offering a reliable and rapid alternative to traditional manual palpation methods in emergency settings.