Hypertension and nephrology

[World Diabetes Day 2018-2019]

WITTMANN István

MAY 10, 2019

Hypertension and nephrology - 2019;23(02)

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Hypertension and nephrology

[One-year persistence of fixed-dose combinations of angiotensin-converting enzyme inhibitor and calcium channel blocker in hypertensive patients]

SIMONYI Gábor, FERENCI Tamás, FINTA Ervin, IGAZ Iván, BALOGH Sándor, GASPARICS Roland, MEDVEGY Mihály

[Introduction: The most recent European guidelines for the treatment of hypertension suggest the use of renin-angiotensin-aldosterone system antagonists (RAAS inhibitors) and calcium channel blockers (CCBs) or diuretics fixed-dose combinations (FDCs) as the first therapeutic option. In antihypertensive therapy, the patient’s adherence is one of the most important factors in reducing unwanted cardiovascular events. Aim: Our aim was to assess the one-year persistence of angiotensin-converting enzyme inhibitor (ACEI) and CCB FDCs in hypertensive patients. Method: Authors have analysed the prescription database of the National Health Insurance Fund in Hungary on pharmacy claims between October 1, 2012 and September 30, 2013. Those patients were identified who filled prescriptions for FDCs of ACEI and CCBs prescribed for the first time for hypertensive patients and who had not re ceived similar drugs during the year before. Apparatus of survival analysis was used, where ‘survival’ was the time to abandon the medication. Results: 124,388 patients met the inclusion criteria. One-year persistence rate and hazard ratio (HR) of discontinua tion in patients with ramipril/amlodipine FDC was 54% (HR = 1.00, reference), perindopril/amlodipine 47% (HR = 1.30, p<0.0001), lisinopril/amlodipine 36% (HR = 1.79, p<0.0001), ramipril/felodipine 26% (HR = 2.28, p<0.0001) and trandolapril/verapamil 12% (HR = 4.13, p<0.0001). The average survival time of drug limited to 360 days was 270.2 days for ramipril/amlodipine FDC, 242.7 days for perindopril/amlodipine FDC, 211.2 days for lisinopril/amlodipine FDC, 186.3 days for ramipril/felodipine FDC and 125.7 days for trandolapril/verapamil FDC. Conclusions: The authors demonstrated that the one-year persistence of ACEI/CCB FDCs was significantly different in hypertensive patients. Ramipril/amlodipine FDC was more advantageous for patient adherence.]

Hypertension and nephrology

[Letter to our Readers]

ALFÖLDI Sándor, KÉKES Ede

Hypertension and nephrology

[Accredited Postgraduate Training]

Hypertension and nephrology

[Hungarian dialysis statistics: changing trends in the renal epidemiology]

KULCSÁR Imre, KISS István, SZEGEDI János

[In the last 30-35 years, dialysis care in Hungary has been a major development: both the incidence and prevalence of patients have increased year by year. Over the last decade, growth has slowed and is becoming more and more stabilized (similar trends can be seen in dialysis statistics in developed countries). Behind the dialysis indication the acute kidney injury (AKI) is more common than the end-stage renal disease (ESRD). The latter incidence has been stable for last 6 years (200-230 patient/million population). The annual average growth rate of prevalent dialysis patients was only 0.9%/year in the last 6 years. Among prevalent dialysis patients, the proportion of diabetic patients has remained unchanged for 10 years (26-27%), but those have increased who had hypertension nephropahty. The average age of incident and prevalent dialyzed patients has decreased gradually over the past 8 years (between 2009 and 2017 incident rate was from 67.1 to 63.0 years, prevalent rate was from 65.6 to 61.8 years). Unfortunately, just over half of the patients who dialyzed due to chronic kidney disease (CKD) have reached dialysis day 91. This is due to the high proportion of patient who was in urgent need of dialysis. In chronic hemodialysis (HD) program, the proportion of patients treated with arterovenous fistulas (AVF) decreases, while the rate of central venous catheter (CVC) users increases. The Hungarian peritoneal dialysis program in Europe is very good. The number of prevalent patients receiving renal replaement therapy (RRT) in Hungary in 2017 was 1005 for 1 million inhabitants.]

Hypertension and nephrology

[Serum uric acid level in hypertension. Domestic experience based on the data of the Hungarian Hypertonia Register 2011., 2013., 2015. Part I. Introduction. Patients and methods. Basic data]

KÉKES Ede, PAKSY András, ALFÖLDI Sándor

[Worldwide, screening in the general population detects an increase in serum uric acid levels in both sexes. This growth trend is also valid for hypertension. Authors studied the incidence of serum uric acid levels and its correlation with age, risk factors, anthropological, metabolic characteristics, blood pressure, blood pressure target, organ damage, age-related co-morbidity and drug therapy in 47,372 hypertensive patients (22,688 males, 24,684 women). In the first part of their analysis they present the method of analysis and the basic correlations. The uric acid level is higher in men than in women, with the advancement of age increasing. Increases in systolic and diastolic blood pressure are associated with increases in serum uric acid levels, with a tendency for systolic pressure to be significantly higher. For ladies, the rising trend is smaller and always lower in uric acid values. The uric acid value is higher in patients with the non-target blood pressure. The presence of co-morbidity significantly increases serum uric acid levels.]

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[Zonisamide: one of the first-line antiepileptic drugs in focal epilepsy ]

JANSZKY József, HORVÁTH Réka, KOMOLY Sámuel

[Chronic administration of antiepileptic drugs without history of unprovoked epileptic seizures are not recommended for epilepsy prophylaxis. Conversely, if the patient suffered the first unprovoked seizure, then the presence of epileptiform discharges on the EEG, focal neurological signs, and the presence of epileptogenic lesion on the MRI are risk factors for a second seizure (such as for the development of epilepsy). Without these risk factors, the chance of a second seizure is about 25-30%, while the presence of these risk factors (for example signs of previous stroke, neurotrauma, or encephalitis on the MRI) can predict >70% seizure recurrence. Thus the International League Against Epilepsy (ILAE) re-defined the term ’epilepsy’ which can be diagnosed even after the first seizure, if the risk of seizure recurrence is high. According to this definition, we can start antiepileptic drug therapy after a single unprovoked seizure. There are four antiepileptic drugs which has the highest evidence (level „A”) as first-line initial monotherapy for treating newly diagnosed epilepsy. These are: carbamazepine, phenytoin, levetiracetam, and zonisamide (ZNS). The present review focuses on the ZNS. Beacuse ZNS can be administrated once a day, it is an optimal drug for maintaining patient’s compliance and for those patients who have a high risk for developing a non-compliance (for example teenagers and young adults). Due to the low interaction potential, ZNS treatment is safe and effective in treating epilepsy of elderly people. ZNS is an ideal drug in epilepsy accompanied by obesity, because ZNS has a weight loss effect, especially in obese patients.]

Clinical Neuroscience

Cyanocobalamin and cholecalciferol synergistically improve functional and histopathological nerve healing in experimental rat model

ALBAY Cem, ADANIR Oktay, AKKALP Kahraman Asli, DOGAN Burcu Vasfiye, GULAEC Akif Mehmet, BEYTEMUR Ozan

Introduction - Peripheral nerve injury (PNI) is a frequent problem among young adults. Hopefully, regeneration can occur in PNI unlike central nervous system. If nerve cut is complete, gold standard treatment is surgery, but incomplete cuts have been tried to be treated by medicines. The aim of the study was to evaluate and compare clinical and histopathological outcomes of independent treatment of each of Vitamin B12 (B12) and Vitamin D3 (D3) and their combination on sciatic nerve injury in an experimental rat model. Materials and methods - Experimental animal study was performed after the approval of BEH Ethics Committee No. 2015/10. 32 rats were grouped into four (n=8) according to treatment procedures, such as Group 1 (controls with no treatment), Group 2 (intraperitoneal 1 mg/kg/day B12), Group 3 (oral 3500 IU/kg/week D3), Group 4 (intraperitoneal 1 mg/kg/day B12+ oral 3500 IU/kg/week D3). Sciatic Functional Index (SFI) and histopathological analysis were performed. Results - SFIs of Group 2, 3, 4 were statistically significantly higher than controls. Group 2 and 3 were statistically not different, however Group 4 was statistically significantly higher than others according to SFI. Axonal degeneration (AD) in all treatment groups were statistically significantly lower than in Group 1. AD in Group 4 was significantly lower than in Group 2 and 3; there was no significant difference between Group 2 and 3. There was no significant difference between Group 1,2 and 3 in Axonolysis (A). But A of Group 4 was significantly very much lower than all others. Oedema- inflammation (OE-I) in all treatment groups were significantly lower than in Group 1; there was no significant difference between Group 2 and group 4. OE-I in Group 2 and 4 were significantly lower than in Group 3. There were no significant differences between Group 1, 2 and 3 in damage level scores; score of Group 4 was significantly lower than of Group 1. Conclusions - B12 and D3 were found effective with no statistically significant difference. But combined use of B12 and D3 improve nerve healing synergistically. We recommend combined use of B12 and D3 after PNI as soon as possible.

Clinical Neuroscience

Simultaneous subdural, subarachnoideal and intracerebral hAemorrhage after rupture of a peripheral middle cerebral artery aneurysm

BÉRES-MOLNÁR Anna Katalin, FOLYOVICH András, SZLOBODA Péter, SZENDREY-KISS Zsolt, BERECZKI Dániel, BAKOS Mária, VÁRALLYAY György, SZABÓ Huba, NYÁRI István

The cause of intracerebral, subarachnoid and subdural haemorrhage is different, and the simultaneous appearance in the same case is extremely rare. We describe the case of a patient with a ruptured aneurysm on the distal segment of the middle cerebral artery, with a concomitant subdural and intracerebral haemorrhage, and a subsequent secondary brainstem (Duret) haemorrhage. The 59-year-old woman had hypertension and diabetes in her medical history. She experienced anomic aphasia and left-sided headache starting one day before admission. She had no trauma. A few minutes after admission she suddenly became comatose, her breathing became superficial. Non-contrast CT revealed left sided fronto-parietal subdural and subarachnoid and intracerebral haemorrhage, and bleeding was also observed in the right pontine region. The patient had leucocytosis and hyperglycemia but normal hemostasis. After the subdural haemorrhage had been evacuated, the patient was transferred to intensive care unit. Sepsis developed. Echocardiography did not detect endocarditis. Neurological status, vigilance gradually improved. The rehabilitation process was interrupted by epileptic status. Control CT and CT angiography proved an aneurysm in the peripheral part of the left middle cerebral artery, which was later clipped. Histolo­gical examination excluded mycotic etiology of the aneu­rysm and “normal aneurysm wall” was described. The brain stem haemorrhage – Duret bleeding – was presumably caused by a sudden increase in intracranial pressure due to the supratentorial space occupying process and consequential trans-tentorial herniation. This case is a rarity, as the patient not only survived, but lives an active life with some residual symptoms.

Clinical Neuroscience

Mid-term oral isotretinoin therapy causes a predominantly sensory demyelinating neuropathy

ALTUN Yasar, INAN Esra

Aim - The purpose of this prospective study was to investigate whether mid-term treatment with oral isotretinoin may impact peripheral nerve function. Methods - In this study, we included 28 patients with no apparent neurological or neurophysiological findings. The patients received treatment with oral isotretinoin for papulopustular or nodulocystic acne. The patients with normal findings in the first examination were given 1 mg/kg/day oral isotretinoin. Neurological examinations and electroneurographic studies were performed before and 6 months after the onset of isotretinoin treatment. Results - Clinical examinations and electroneurographic evaluations prior to treatment revealed no abnormalities in any of the patients. However, 20 patients (72%) displayed one or more abnormal values in the tested parameters after treatment. Although the mean amplitudes of compound muscle action potential of the ulnar and median nerves did not vary, significant decreases were observed in the mean sensory conduction velocities of median, ulnar, sural, medial plantar, medial dorsal cutaneous, and dorsal sural nerves 6 months after the onset of treatment. Conclusion - Systemic use of isotretinoin may cause electroneurographic changes. Probable electroneurographic alterations may be detected at a much earlier period via dorsal sural nerve tracing when electrophysiological methods used in routine clinical practice cannot detect these changes.

Clinical Neuroscience

Risk factors for ischemic stroke and stroke subtypes in patients with chronic kidney disease

GÜLER Siber, NAKUS Engin, UTKU Ufuk

Background - The aim of this study was to compare ischemic stroke subtypes with the effects of risk factors, the relationship between grades of kidney disease and the severity of stroke subtypes. Methods - The current study was designed retrospectively and performed with data of patients who were hospitalised due to ischemic stroke. We included 198 subjects who were diagnosed with ischemic stroke of Grade 3 and above with chronic kidney disease. Results - In our study were reported advanced age, coronary artery disease, moderate kidney disease as the most frequent risk factors for cardioembolic etiology. Hypertension, hyperlipidemia, smoking and alcohol consumption were the most frequent risk factors for large-artery disease. Female sex and anaemia were the most frequent risk factors for small-vessel disease. Dialysis and severe kidney disease were the most frequent risk factors in unknown etiologies, while male sex, diabetes mellitus, prior stroke and mild kidney disease were the most frequent risk factors for other etiologies. National Institute of Health Stroke Scale (NIHSS) scores were lower for small-vessel disease compared with other etiologies. This relation was statistically significant (p=0.002). Conclusion - In order to improve the prognosis in ischemic stroke with chronic kidney disease, the risk factors have to be recognised and the treatment options must be modified according to those risk factors.