Tıp Fakültesi / Faculty of Medicine
Permanent URI for this collectionhttps://hdl.handle.net/11727/1403
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Item The Changes with the New Legislations(2023) Bicakcioglu, Murat; Gedik, EnderOrgan transplantation is the most important option for the treatment of end-stage diseases. However, there is a large difference between the number of patients on the waiting list and the number of transplants performed. The gradual increase in this difference creates ethical problems related to organ transplantation. Ethical problems and other limitations require organ transplantation to be controlled by legal regulations. In our country, organ transplantation practice is carried out under the supervision of the state. Organ Transplant Practice Regulation has been updated by being published in the Official Gazette dated 09.12.2022 and numbered 32008. Possible end-of-life decisions in brain death are stated in accordance with the conditions of our country. "In cases where brain death is diagnosed, the organ preservation protocols applied are terminated in the absence of family or legal guardian approval regarding organ donation. In case of organ donation by the family or legal guardian, the organ preservation protocols needed for donor care are continued during the period until the transplantation of the organ to the waiting patient", and a solution has been presented to the intensive care physicians for the prognosis of the cases that donated or could not be donated.In the regulation in which the prerequisites of the brain death diagnostic criteria are specified, it is stated that the central body temperature should be =36 degrees C. With the new regulation, end-of-life decisions on brain death and changes made in relation to central body temperature have brought convenience in the diagnosis and follow- up process.Item Ethics and Clinical Communications(2023) Yesiler, Fatma Irem; Gedik, EnderThe diagnosis of brain death has medical, legal and ethical aspects. While the main determinant is the medical approach of the physician in terms of ethics, legal situations are also effective in the process. Non-harm, beneficence, respect for autonomy and justice are the principles that are widely accepted and form the basis of medical ethics. Understanding these principles is a must in order to talk about the ethics of brain death and organ transplantation. In the process of diagnosis and management of brain death, the physician should convey the process to the relatives of the patients in a clear and understandable language and in accordance with the educational-cultural levels of the relatives of the patients. The fact that the concept of brain death is misunderstood in the society or lack of knowledge creates social ethical problems. Special training should be given to health professionals for brain death awareness and early diagnosis, and their ability to resolve ethical problems should be strengthened. Human resources are of great importance in the diagnosis of brain death and in the process of organ transplantation from a cadaver. Communication skills are the mainstay of interaction within the clinic. Organ transplant coordinators should run the process smoothly by creating a bridge between the physician responsible for the case and the intensive care physicians. Such an approach will reduce ethical issues and ensure a successful diagnosis and donation process.Item Incidence of and Risk Factors for Prolonged Intensive Care Unit Stay After Open Heart Surgery Among Elderly Patients(2022) Yesiler, Fatma Irem; Akmatov, Nursultan; Nurumbetova, Oktom; Beyazpinar, Deniz Sarp; Sahinturk, Helin; Gedik, Ender; Zeyneloglu, Pinar; 0000-0003-0159-4771; 36540477; AAJ-1419-2021Objective: Open heart surgery (OHS) is frequently performed on elderly patients. We aimed to investigate the risk factors associated with prolonged intensive care unit (ICU) stay in elderly patients undergoing open heart surgery. Materials and Methods: Medical records of all patients > 75 years who underwent OHS (coronary artery bypass grafting (CABG) and/or heart valve surgery) between June 1, 2013, and December 31, 2020, were retrospectively analyzed. Those staying in the ICU longer than five days were determined as prolonged ICU stay. Patients were divided into two groups, according to ICU stay <5 days and >5 days. Results: Out of the 198 patients included in the study, 130 (65.7%) were male. Seventy patients (35.4%) had prolonged ICU stay. The mean age was higher in patients within the prolonged ICU stay group when compared to the other group (79.9 +/- 3.5 years vs.78.1 +/- 2.7 years, p<0.001). The patients who used statins and angiotensin-converting enzyme inhibitors (ACEi)/angiotensin receptor blockers (ARBs) in the preoperative period had a shorter ICU stay compared to those who did not (45% vs 31.4%, p=0.04; 57% vs 42.9%, p=0.03). The history of previous thoracic surgery (2.3% vs 10% p=0.03), emergency surgery (12.5% vs 24.5% p=0.04), and preoperative pacemaker usage (0.8% vs 7%, 1 p=0.01) were higher in the group of patients with prolonged ICU stay compared to the other group. Preoperative ejection fraction (EF)% (47.7 +/- 11.3 vs 51.1 +/- 8.8, p<0.001) and hemoglobin level (11.8 +/- 1.9 mg/dL vs 12.9 +/- 1.6, p<0.001) were lower in the group with prolonged ICU stay compared to the other group. Incidence of cardiac arrest (3.9% vs 15.7% p=0.006), presence of arrhythmia (16.4% vs 41.6%,p<0.001), frequency of pacemaker and intra-aortic balloon pump (IABP) usage (0 vs 10% p=0.002; 1.6% vs 8.6% p=0.02), and need for renal replacement therapy (3.1% vs 12.9%,p=0.02) were higher in the group with prolonged ICU stay compared to the other group. According to the logistic regression analysis; higher age (OR: 1.225, 95%CI 1.104-1.360, p<0.001), preoperative pacemaker usage (OR: 0.100, 95%CI 0.01-0.969, p<0.04), preoperative statin non-use (OR: 2.056, 95%CI 1.040-4.066, p<0.03) and preoperative low EF (OR: 0.947, 95%CI 0.915-0.981, p=0.002) were determined as independent risk factors for prolonged ICU stay. Conclusion: The incidence of prolonged ICU stay after OHS among patients >75 years was 35.4% in our cohort. Higher age, preoperative pacemaker usage, preoperative statin non-use, and low preoperative EF were associated with prolonged ICU stay.Item Comparison Of Confirmed And Probable COVID-19 Patients In The Intensive Care Unit During The Normalization Period(2022) Yesiler, Fatma Irem; Capras, Mesher; Kandemir, Emre; Sahinturk, Helin; Gedik, Ender; Zeyneloglu, Pinar; https://orcid.org/0000-0002-0612-8481; https://orcid.org/0000-0003-0159-4771; 34812130; AAJ-4212-2021; AAJ-1419-2021The decrease in social distance together with the normalization period as of June 1, 2020, in our country caused an increase in the number of coronavirus disease 2019 (COVID-19) patients. Our aim was to compare the demographic features, clinical courses, and outcomes of confirmed and probable COVID-19 patients admitted to our intensive care unit (ICU) during the normalization period. Critically ill 128 COVID-19 patients between June 1, 2020, and December 2, 2020, were analyzed retrospectively. The mean age was 69.7 +/- 15.5 y (61.7% male). Sixty-one patients (47.7%) were confirmed. Dyspnea (75.0%) was the most common symptom and hypertension (71.1%) was the most common comorbidity. The mean Acute Physiology and Chronic Health Evaluation System (APACHE II) score; Glasgow Coma Score; Sequential Organ Failure Assessment scores on ICU admission were 17.4 +/- 8.2,12.3 +/- 3.9, and 5.9 +/- 3.4, respectively. One hundred and one patients (78.1%) received low-flow oxygen, 48 had high-flow oxygen therapy (37.5%), and 59 (46.1%) had invasive mechanical ventilation. Fifty-three patients (41.496) had vasopressor therapy and 30 (23.4%) patients had renal replacement therapy due to acute kidney injury (AKI). Confirmed patients were more tachypneic (p= 0.005) and more hypoxemic than probable patients (p < 0.001). Acute respiratory distress syndrome and AKI were more common in confirmed patients than probable (both p < 0.001). Confirmed patients had higher values of hemoglobin, C- reactive protein, fibrinogen, and D-dimer than probables (respectively, p = 0.028. 0.006, 0.000. and 0.019). The overall mortality was higher in confirmed patients (p = 0.209, 52.6% vs. 47.4%). Complications are more common among confirmed COVID-19 patients admitted to ICU. The mortality rate of confirmed COVID-19 patients admitted to the ICU was found to be higher than probable patients. Mortality of confirmed cases was higher than prediction of APACHE-II scoring system.Item A Comparison of Echocardiography and the Pressure Recording Analytical Method (PRAM) for Predicting Fluid Responsiveness after Passive Leg Raising(2021) Ozdemirkan, Aycan; Aitakhanoya, Manat; Gedik, Ender; Zeyneloglu, Pinar; Pirat, Arash; 0000-0002-7175-207X; ABI-2971-2020Objective: This study aims to assess the agreement between the cardiac index (CI) measured by pressure recording analytical method (PRAM) and transthoracic echocardiography (TTE) before and after the passive leg raise (PLR) maneuver. Methods: This is a prospective observational study in critically ill patients who were monitored with MostcareUp/PRAM (Vygon, Vytech, Padova, Italy). Cardiac index (CI) values and percent changes in CI values in response to PLR were recorded by TTE and PRAM. Results: Data of a total of 25 patients were collected. The median CI values that were calculated by TTE before and after PLR were 2.5 (1.2-4.7) L/min/m(2) and 2.9 (1.4-5.6) L/min/m(2), respectively. The median CI values that were calculated by PRAM before and after PLR were 2.5 (1.5-4.8) L/min/m(2) and 2.6 (1.7-5.7) L/min/m(2), respectively. There was significant correlations between the measured CI values both by TTE and PRAM before and after PLR (r=0.635, p=0.001 and r=0.610, p=0.001, respectively). The median percent changes in CI with TTE and PRAM were -0.13 (-0.7-0.4) and -0.11 (-0.5-0.5), respectively. Sixteen patients were determined as FR by TTE (64%) and 13 patients were determined as FR by PRAM (52%). The Kappa test showed moderate agreement between TTE and PRAM for predicting fluid responsiveness (k=0.595; p=0.002). The mean biases between the CI values measured by TTE and PRAM before and after PLR were 0.04 +/- 0.77 L/min/m(2) and 0.22 +/- 0.88 L/min/m(2), respectively. Conclusion: This study showed a significant correlation for CI values measured by both methods. For predicting fluid responsiveness there was agreement between the two methods after PLR.Item A Novel Therapeutic Approach for Renal Transplant Recipient with Septic Shock and Acute Kidney Injury: A Case Report(2021) Yesiler, Fatma Irem; Yurtsever, Beyza Meltem; Gedik, Ender; Zeyneloglu, Pinar; Haberal, Mehmet; 0000-0002-0612-8481; 0000-0002-4737-7660; 0000-0002-7175-207X; 0000-0002-3462-7632; AAJ-4212-2021; ABI-2971-2020; AAJ-8097-2021Extracorporeal blood purification (EBP) therapies, using oXiris (R) haemofilter, are popular and used globally in intensive care units for management of patients with septic acute kidney injury (AKI). Herein, we present a case of an immunocompromised renal transplant recipient with sepsis and AKI who was treated with continuous renal replacement therapy (CRRT) using oXiris (R) haemofilter. A 45-year-old female who underwent cadaveric renal transplantation in 2015 was admitted due to septic shock secondary to Escherichia coli urinary tract infection (bacteraemia) and acute respiratory distress syndrome (ARDS). Her acute physiology and chronic health assessment score was 23, sepsis-related organ failure score was 11 and Glasgow coma scale was 15. She was intubated because of moderate ARDS and administered vasopressors due to hemodynamic instability. For immunosuppressive therapy, methylprednisolone (40 mg q12h) was administered. Antimicrobial therapies, including intravenous meropenem, linezolid, trimethoprim-sulfamethoxazole, voriconazole and oseltamivir, were administered. She exhibited metabolic acidosis and septic AKI and was classified as Kidney Disease Improving Global Outcomes stage 3. Therefore, CRRT with oXiris (R) haemofilter was administered at the 11th hour after admission. A full recovery of transplant renal function and diuresis was observed 7 days after admission. She was transferred to ward after 9 days and discharged after 2 weeks, without the requirement of RRT. EBP is proposed as an adjuvant therapy for sepsis and AKI. Solid organ transplant recipients with septic AKI may benefit from early usage of oXiris (R) haemofilter with CRRT as a novel approach for improving survival and clinical outcomes.Item Effects of Minimal Flow Sevoflurane or Desflurane Anaesthesia on Hemodynamic Parameters, Body Temperature and Anaesthetic Consumption(2020) Taskın, Duygu; Gedik, Ender; Kayhan, Zeynep; 0000-0002-7175-207X; 0000-0003-0579-1115; 33103139; ABI-2971-2020; AAJ-4623-2021Objective: We aimed to compare minimal flow sevoflurane and desflurane anaesthesia in terms of hemodynamic parameters, body temperature, anaesthetic gas consumption and cost. Methods: 120 patients with ASA I-II (>18yo) who underwent elective surgery for longer than 60 min after general anaesthesia were randomized into two groups. The Drager Perseus (R) A500 workstation was used. Pre-oxygenation was performed for 3 min with 6 L min(-1) to 100% oxygen. Fractional inspirium oxygen concentration (FiO(2)) was reduced to 40%, fresh gas flow was 4 L min(-1) after intubation. Sevoflurane or desflurane was started at 1.5 minimal alveolar concentration (MAC). When the MAC value reached 0.9, fresh gas flow was reduced to 0.5 L min(-1), FiO(2) was increased to 68%. At the end of the surgery, the vaporizer was switched off, the fresh gas flow was increased (4 L min(-1), FiO(2) 100%). When the train-of-four (TOF) ratio was 100%, extubation was carried out. Results: There were no differences in patient characteristics and initial hemodynamic parameters of the groups. There were statistically significant differences between the times to reach 0.9 MAC, extubation and eye opening; anaesthetic, O-2 and air consumption in both groups. Conclusion: With minimal flow, the time to reach target MAC, time to extubation and eye opening were significantly faster for desflurane and anaesthetic, oxygen and air consumption in desflurane anaesthesia were less than sevoflurane. Thus, we can say that desflurane has faster anaesthetic induction and recovery time with lower anaesthetic consumption than sevoflurane.Item A Pregnant Woman with Jaundice in the Intensive Care Unit(A Pregnant Woman with Jaundice in the Intensive Care Unit, 2020) Yesiler, Fatma Irem; Sahinturk, Helin; Gunakan, Emre; Gedik, Ender; Zeyneloglu, Pinar; 0000-0003-0159-4771; 0000-0001-8854-8190; AAJ-1419-2021Acute fatty liver of pregnancy (AFLP) is a life-threatening disorder characterized by maternal liver failure, and it occurs in the third trimester of pregnancy or postpartum period. The resultant effects include coagulopathy, electrolyte abnormalities, and the multiple organ dysfunction syndrome (MODS), which may require liver transplantation. Therefore, pregnant women having MODS should be managed in an intensive care unit (ICU) with multidisciplinary inputs to facilitate the appropriate supportive care. We present a successful case report of a pregnant women admitted to the ICU with jaundice and MODS without the need for liver transplantation and organ support therapies. A 20-year-old patient in her first pregnancy at 31 weeks gestation who presented with nausea, vomiting, and jaundice was admitted to our hospital. She was referred from a rural medical center (a center 608 kilometers away) to the ICU due to the possible diagnosis of acute liver failure requiring liver transplantation. Acute physiology and chronic health assessment score was 12, sepsis related organ failure score was 8, and Glasgow coma scale was 15 on ICU admission. AFLP was considered in the patient and an emergency delivery was performed by caesarean section. She recovered with intensive care support after pregnancy delivery without the need for liver transplantation. The patient was discharged from the ICU and hospital after 6 and 10 days, respectively. AFLP should be suspected in the differential diagnosis of a pregnant woman with jaundice and hyperbilirubinemia who is admitted to the ICU in the third trimester of pregnancy or postpartum period. Intensivist should not delay in the diagnosis of AFLP due to its morbid complications and high mortality. Early diagnosis, prompt pregnancy delivery, and intensive care support in the peripartum and postpartum periods may improve maternal and fetal outcomes