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Ukhanov AP, Zakharov DV, Zhilin SA, Bolshakov SV, Muminov KD, Aselderov YA. [Modern minimally invasive technologies for the treatment of cholelithiasis]. Khirurgiia (Mosk) 2023:33-40. [PMID: 36800867 DOI: 10.17116/hirurgia202303133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Surgical community has not yet reached any consensus on the adequate treatment of gallstone disease with combined stones of the gallbladder and bile ducts. Endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic papillosphincterotomy (EPST) followed by laparoscopic cholecystectomy (LCE) have been considered the optimal treatment method for the past thirty years. Thanks to improvement of technologies and experience in laparoscopic surgery, many centers in the world offer simultaneous treatment of cholecystocholedocholithiasis, i.e. LCE and laparoscopic choledocholithotomy. Transcystical and transcholedochal extraction of calculi from the common bile duct is the most common. Intraoperative cholangiography and choledochoscopy are used to assess extraction of calculi while T-shaped drainage, biliary stent and primary suture of common bile duct are used to complete choledocholithotomy. Laparoscopic choledocholithotomy is associated with certain difficulties, requires some experience in choledochoscopy and intracorporeal suturing of common bile duct. There are many unresolved issues regarding the choice of laparoscopic choledocholithotomy technique depending on the number and dimensions of stones, diameter of cystic duct and common bile duct. The authors analyze literature data on the role of modern minimally invasive interventions in the treatment of gallstone disease.
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Affiliation(s)
- A P Ukhanov
- Central Clinical Hospital, Veliky Novgorod, Russia.,Jaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - D V Zakharov
- Central Clinical Hospital, Veliky Novgorod, Russia.,Jaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - S A Zhilin
- Central Clinical Hospital, Veliky Novgorod, Russia.,Jaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | | | - K D Muminov
- Central Clinical Hospital, Veliky Novgorod, Russia
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2
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Ukhanov AP, Zakharov DV, Zhilin SA, Bolshakov SV, Muminov KD, Aselderov YA. [Laparoscopic treatment of perforated gastroduodenal ulcers]. Khirurgiia (Mosk) 2023:100-109. [PMID: 37530778 DOI: 10.17116/hirurgia2023081100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
The review is devoted to laparoscopic technology in the treatment of perforated gastroduodenal ulcers. Searching for literature data was performed in the PubMed, Google, Springer Link online library, Cochrane Systematic Review databases. We analyzed reviews, prospective and retrospective studies devoted to various strategies in the treatment of perforated peptic ulcers. Demographic, clinical and epidemiological features of these patients, indications and contraindications for endoscopic suturing of perforations, features of laparoscopic procedures and causes of conversions to open surgery were studied. Finally, we compared the results of laparoscopic and open surgeries.
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Affiliation(s)
- A P Ukhanov
- Central City Clinical Hospital, Veliky Novgorod, Russia
- Jaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - D V Zakharov
- Central City Clinical Hospital, Veliky Novgorod, Russia
- Jaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - S A Zhilin
- Central City Clinical Hospital, Veliky Novgorod, Russia
- Jaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - S V Bolshakov
- Central City Clinical Hospital, Veliky Novgorod, Russia
| | - K D Muminov
- Central City Clinical Hospital, Veliky Novgorod, Russia
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3
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Ukhanov AP, Zakharov DV, Zhilin SA, Bolshakov SV, Muminov KD, Aselderov YA. [Laparoscopic appendectomy for acute appendicitis in pregnancy]. Khirurgiia (Mosk) 2023:86-94. [PMID: 37707337 DOI: 10.17116/hirurgia202309186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
The review is devoted to the role of laparoscopic appendectomy in surgical management of acute appendicitis in pregnancy. We analyzed reviews, prospective and retrospective studies in the PubMed, Google, the Springer Link online library, the Cochrane Systematic Review databases. The results of laparoscopic and traditional treatment of acute appendicitis in pregnant women were assessed. We analyzed clinical, epidemiological features in these patients, differential diagnosis of acute appendicitis in pregnant women, indications and contraindications for endoscopic treatment, features of laparoscopic procedures. Comparative assessment of laparoscopic and open surgeries for acute appendicitis in pregnant women was carried out. We also estimated the influence of surgical treatment of acute appendicitis on subsequent course of pregnancy.
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Affiliation(s)
- A P Ukhanov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
- Jaroslav the Wise Institute of Medical Education of Novgorod State University, Veliky Novgorod, Russia
| | - D V Zakharov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
- Jaroslav the Wise Institute of Medical Education of Novgorod State University, Veliky Novgorod, Russia
| | - S A Zhilin
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
- Jaroslav the Wise Institute of Medical Education of Novgorod State University, Veliky Novgorod, Russia
| | - S V Bolshakov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
| | - K D Muminov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
| | - Yu A Aselderov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
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Kanafina MM, Karaseva NP, Zakharov DV, Golikov AV, Malakhov VV. New Data on Distribution of Nereilinum murmanicum (Annelida, Siboglinidae) in the Barents Sea. Dokl Biol Sci 2022; 502:26-30. [PMID: 35298750 DOI: 10.1134/s0012496622010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/29/2021] [Accepted: 09/29/2021] [Indexed: 06/14/2023]
Abstract
The article presents a report on the findings of representatives of frenulate pogonophorans Nereilinum murmanicum in the northern and central parts of the Barents Sea, which significantly expands the range of this species and provides guidance on its distribution in this basin. Here we present the coordinates of new finds with an indication of the depth. Find points were associated with data on known and potential hydrocarbon deposits.
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Affiliation(s)
| | - N P Karaseva
- Moscow State University, 119991, Moscow, Russia.
| | - D V Zakharov
- Polar Branch, Russian Federal Research Institute of Fisheries and Oceanography, 183038, Murmansk, Russia
- Zoological Institute, Russian Academy of Sciences, 190121, St. Petersburg, Russia
| | - A V Golikov
- Kazan (Volga Region) Federal University, 420008, Kazan, Russia
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Usenko TS, Senkevich KA, Bezrukova AI, Baydakova GV, Basharova KS, Zhuravlev AS, Gracheva EV, Kudrevatykh AV, Miliukhina IV, Krasakov IV, Khublarova LA, Fursova IV, Zakharov DV, Timofeeva AA, Irishina YA, Palchikova EI, Zalutskaya NM, Emelyanov AK, Zakharova EY, Pchelina SN. Impaired Sphingolipid Hydrolase Activities in Dementia with Lewy Bodies and Multiple System Atrophy. Mol Neurobiol 2022; 59:2277-2287. [PMID: 35066761 DOI: 10.1007/s12035-021-02688-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/08/2021] [Indexed: 11/28/2022]
Abstract
The synucleinopathies are a group of neurodegenerative diseases characterized by the oligomerization of alpha-synuclein protein in neurons or glial cells. Recent studies provide data that ceramide metabolism impairment may play a role in the pathogenesis of synucleinopathies due to its influence on alpha-synuclein accumulation. The aim of the current study was to assess changes in activities of enzymes involved in ceramide metabolism in patients with different synucleinopathies (Parkinson's disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA)). The study enrolled 163 PD, 44 DLB, and 30 MSA patients as well as 159 controls. Glucocerebrosidase, alpha-galactosidase, acid sphingomyelinase enzyme activities, and concentrations of the corresponding substrates (hexosylsphingosine, globotriaosylsphingosine, lysosphingomyelin) were measured by liquid chromatography tandem-mass spectrometry in blood. Expression levels of GBA, GLA, and SMPD1 genes encoding glucoceresobridase, alpha-galactosidase, and acid sphingomyelinase enzymes, correspondently, were analyzed by real-time PCR with TaqMan assay in CD45 + blood cells. Increased hexosylsphingosine concentration was observed in DLB and MSA patients in comparison to PD and controls (p < 0.001) and it was associated with earlier age at onset (AAO) of DLB (p = 0.0008). SMPD1 expression was decreased in MSA compared to controls (p = 0.015). Acid sphingomyelinase activity was decreased in DLB, MSA patients compared to PD patients (p < 0.0001, p < 0.0001, respectively), and in MSA compared to controls (p < 0.0001). Lower acid sphingomyelinase activity was associated with earlier AAO of PD (p = 0.012). Our data support the role of lysosomal dysfunction in the pathogenesis of synucleinopathies, namely, the pronounced alterations of lysosomal activities involved in ceramide metabolism in patients with MSA and DLB.
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Affiliation(s)
- T S Usenko
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia. .,Pavlov First Saint-Petersburg State Medical University, L'va Tolstogo str. 6-8, 197022, St. Petersburg, Russia.
| | - K A Senkevich
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia.,Pavlov First Saint-Petersburg State Medical University, L'va Tolstogo str. 6-8, 197022, St. Petersburg, Russia
| | - A I Bezrukova
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia
| | - G V Baydakova
- Research Center for Medical Genetics, Moskvorechie str. 1, Moscow, 115478, Russia
| | - K S Basharova
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia
| | - A S Zhuravlev
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia
| | - E V Gracheva
- Institute of the Human Brain of RAS, 9, Pavlova str, St. Petersburg, 197376, Russia
| | - A V Kudrevatykh
- Institute of the Human Brain of RAS, 9, Pavlova str, St. Petersburg, 197376, Russia
| | - I V Miliukhina
- Pavlov First Saint-Petersburg State Medical University, L'va Tolstogo str. 6-8, 197022, St. Petersburg, Russia.,Institute of the Human Brain of RAS, 9, Pavlova str, St. Petersburg, 197376, Russia
| | - I V Krasakov
- The Nikiforov Russian Center of Emergency and Radiation Medicine, Optikov str. 54, 197082, St. Petersburg, Russia
| | - L A Khublarova
- V.M. Bekhterevs National Medical Research Center Psychiatry and Neurology, 3 Bekhterev str., 192019, St. Petersburg, Russia
| | - I V Fursova
- V.M. Bekhterevs National Medical Research Center Psychiatry and Neurology, 3 Bekhterev str., 192019, St. Petersburg, Russia
| | - D V Zakharov
- V.M. Bekhterevs National Medical Research Center Psychiatry and Neurology, 3 Bekhterev str., 192019, St. Petersburg, Russia
| | - A A Timofeeva
- Pavlov First Saint-Petersburg State Medical University, L'va Tolstogo str. 6-8, 197022, St. Petersburg, Russia
| | - Y A Irishina
- Institute of the Human Brain of RAS, 9, Pavlova str, St. Petersburg, 197376, Russia
| | - E I Palchikova
- V.M. Bekhterevs National Medical Research Center Psychiatry and Neurology, 3 Bekhterev str., 192019, St. Petersburg, Russia
| | - N M Zalutskaya
- V.M. Bekhterevs National Medical Research Center Psychiatry and Neurology, 3 Bekhterev str., 192019, St. Petersburg, Russia
| | - A K Emelyanov
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia.,Pavlov First Saint-Petersburg State Medical University, L'va Tolstogo str. 6-8, 197022, St. Petersburg, Russia
| | - E Y Zakharova
- Research Center for Medical Genetics, Moskvorechie str. 1, Moscow, 115478, Russia
| | - S N Pchelina
- Petersburg Nuclear Physics Institute Named By B.P. Konstantinov of National Research Centre «Kurchatov Institute», 1, mkr. Orlova roshcha, 188300, Gatchina, Russia.,Pavlov First Saint-Petersburg State Medical University, L'va Tolstogo str. 6-8, 197022, St. Petersburg, Russia.,Institute of Experimental Medicine, 12, Acad. Pavlov Str, 197376, Saint-Petersburg, Russia
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Ukhanov AP, Zakharov DV, Zhilin SA, Bolshakov SV, Kochetygov DV, Leonov AI, Muminov KD, Aselderov YA. [Emergency laparoscopy in the treatment of perforated gastroduodenal ulcers]. Khirurgiia (Mosk) 2022:61-67. [PMID: 36469470 DOI: 10.17116/hirurgia202212161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE To compare the results of endoscopic and open treatment of perforated gastroduodenal ulcers. MATERIAL AND METHODS There were 445 patients with perforated gastroduodenal ulcers between 2013 and 2021. Endoscopic suturing of perforation was performed in 172 patients (38.7%), 273 ones underwent open surgery. RESULTS Among 172 patients scheduled for endoscopy, 160 (93.6%) ones underwent laparoscopic suturing of perforation. Morbidity rate was 5.0% (n=8), postoperative mortality rate - 1.3% (n=2). Comparison of the outcomes after laparoscopic suturing of ulcers in 160 patients and open surgery in 134 patients showed that laparoscopy was followed by 2.5 times lower incidence of complications and 3 times lower postoperative mortality. CONCLUSION Diagnostic laparoscopy is advisable in patients with perforated ulcers and no contraindications. In most cases, surgery can be successfully and effectively completed without conversion to laparotomy. Endoscopic closure of ulcerative defect is preferable since this procedure has certain advantages over traditional intervention, contributes to significant reduction in morbidity, mortality and hospital-stay.
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Affiliation(s)
- A P Ukhanov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
- Institute of Medical Education of the Yaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - D V Zakharov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
- Institute of Medical Education of the Yaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - S A Zhilin
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
- Institute of Medical Education of the Yaroslav the Wise Novgorod State University, Veliky Novgorod, Russia
| | - S V Bolshakov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
| | - D V Kochetygov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
| | - A I Leonov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
| | - K D Muminov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
| | - Yu A Aselderov
- Veliky Novgorod City Central Clinical Hospital, Veliky Novgorod, Russia
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Manushin IE, Strelkova NA, Luybin PA, Zhuravleva NE, Zakharov DV, Vyaznikova VS. Long-Term Dynamics of the Macrozoobenthos Biomass in the Eastern Barents Sea, 1924–2014. BIOL BULL+ 2021. [DOI: 10.1134/s1062359020090083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Orlova OR, Timerbaeva SL, Khatkova SE, Kostenko EV, Krasavina DA, Zakharov DV. [Conversion ratio between different botulinum neuroprotein product in neurological practice]. Zh Nevrol Psikhiatr Im S S Korsakova 2017; 117:132-141. [PMID: 29053134 DOI: 10.17116/jnevro201711791132-141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Despite nearly 30 years of experience in the application of botulinum toxin type A (BTA) in clinical practice, many fundamental questions of therapy remain valid. There are 5 botulinum toxin type A used for neurological indications in the Russian Federation in 2017. They contain different number of active neuroprotein (150 kDa) in a therapeutic dose of the drug that may have a potential impact on the efficacy and duration of action. The current SmPC of each BTA stated that the unit of activity is unique and can not be compared with any other BTA. In scientific publications one can find many details concerning the equivalence doses of onabotulinumtoxin A (botox) and abobotulinumtoxin A (dysport) and the ratio of units varies from 1:1 to 1:11. However, according to clinical guidelines, systematic reviews and high quality research evidence of recent years, the ratio of units of abobotulinumtoxin A (dysport) and onabotulinumtoxin A (botox) is 3(2,5):1. Use of a fixed ratio of units is possible only when switching from one drug to another or in case of limiting access to specific drug. Botulinum toxin type A is the first line of therapy in the treatment of several neurological diseases. The most commonly used drugs of botulinum toxin type A (botox, dysport, xeomin) have a significant evidence base that confirms their efficacy and optimal safety profile. The main difference between botulinum toxin type A is their potential activity of action, i.e., activity units and total therapeutic dose.
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Affiliation(s)
- O R Orlova
- Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - S E Khatkova
- Clinical and Rehabilitation Center, Moscow, Russia
| | - E V Kostenko
- Branch #7 of Moscow Scientific Practical Center for Medical Rehabilitation, Restorative and Sports Medicine, Moscow, Russia
| | - D A Krasavina
- St-Petersburg State Pediatry University, St. Petersburg, Russia
| | - D V Zakharov
- Bekhterev St-Petersburg Research Psychoneurological Institute, St. Petersburg, Russia
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Zakharov DV, Anisimova NA, Stepanenko AM. First record of the sea star Porania pulvillus (O.F. Müller, 1776) in Russian part of the Arctic. Russ J Biol Invasions 2016. [DOI: 10.1134/s207511171604010x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Eremin MV, Zakharov DV, von Nidda HAK, Eremina RM, Shuvaev A, Pimenov A, Ghigna P, Deisenhofer J, Loidl A. Dynamical Dzyaloshinsky-Moriya interaction in KCuF3. Phys Rev Lett 2008; 101:147601. [PMID: 18851575 DOI: 10.1103/physrevlett.101.147601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2008] [Indexed: 05/26/2023]
Abstract
The spin dynamics of the prototypical quasi-one-dimensional antiferromagnetic Heisenberg spin S=1/2 chain KCuF3 is investigated by electron spin resonance spectroscopy. Our analysis shows that the peculiarities of the spin dynamics require a new dynamical form of the antisymmetric anisotropic spin-spin interaction. This dynamical Dzyaloshinsky-Moriya interaction is related to strong oscillations of the bridging fluorine ions perpendicular to the crystallographic c axis. This new mechanism allows us to resolve consistently the controversies in observation of the magnetic and structural properties of this orbitally ordered perovskite compound.
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Affiliation(s)
- M V Eremin
- EP V, Center for Electronic Correlations and Magnetism, University of Augsburg, 86135 Augsburg, Germany
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Eremin MV, Zakharov DV, Eremina RM, Deisenhofer J, Krug von Nidda HA, Obermeier G, Horn S, Loidl A. Unconventional anisotropic superexchange in alpha'-NaV2O5. Phys Rev Lett 2006; 96:027209. [PMID: 16486630 DOI: 10.1103/physrevlett.96.027209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2005] [Indexed: 05/06/2023]
Abstract
The strong line broadening observed in electron spin resonance on NaV2O5 is found to originate from an unusual type of the symmetric anisotropic exchange interaction with simultaneous spin-orbit coupling on both sites. The microscopically derived anisotropic exchange constant is almost 2 orders of magnitude larger than the one obtained from conventional estimations. Based on this result we systematically evaluate the anisotropy of the ESR linewidth in terms of the symmetric anisotropic exchange only, and we find microscopic evidence for precursor effects of the charge ordering already below 150 K.
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Affiliation(s)
- M V Eremin
- EP V, Center for Electronic Correlations and Magnetism, University of Augsburg, 86135 Augsburg, Germany
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Ukhanov AP, Zakharov DV. [Primary-multiple synchronous cancer of the stomach and colon in elderly patients]. Vestn Khir Im I I Grek 2005; 164:80-1. [PMID: 16082844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
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14
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Konradi AO, Rudomanov OG, Zakharov DV, Vakhrameeva NV, Krutikov AN, Iakovleva OI, Shliakhto EV. [Variants of heart remodeling in essential hypertension: prevalence and determinants]. TERAPEVT ARKH 2005; 77:8-16. [PMID: 16281481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
AIM To study myocardial remodeling (MR) in hypertensive patients with normal and excessive body mass, to analyse MR features depending on clinical and hemodynamic parameters. MATERIAL AND METHODS Structural-functional conditions of the myocardium were studied with echocardiography, and determination of left ventricular remodeling (LVR) type was made in 734 untreated hypertensive patients aged 19-76 years. RESULTS Patients with essential hypertension (EH) stage I had mostly excentric left ventricular hypertrophy (LVH). The number of patients with concentric LVH increases with age, disease severity. This type of LVH occurs more frequently in males than in females. In females, LVH severity depends, primarily, on the degree of obesity. If EH combines with obesity, structural alterations of the myocardium are more prominent than in isolated pathology. In android obesity, LVH is more frequent. CONCLUSION In EH, structural alterations of the heart and a LVR variant are determined, besides arterial pressure, by such factors as age and gender, duration of EH, obesity, its degree and kind.
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Konradi AO, Zakharov DV, Rudomanov OG, Iakovleva OI, Gerasimovich SA, Shliakhto EV. [Spectral analysis of the heart rate variability in various types of the left heart ventricle remodelling in patients with hypertension]. Vestn Ross Akad Med Nauk 2001:27-31. [PMID: 11338353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
Autonomic cardiac regulation in different types (normal, concentric, and eccentric geometries) of the left ventricle (LV) was evaluated in 86 hypertensive patients. LV structure and function were evaluated by echocardiography). To calculate heart rate variability (HRV), 512 RR intervals were measured in supine rest and passive tilt. Power spectral analysis with fast Furrier transform was used to derive low- and high-frequency power spectra and the sympathovagal index (SVI). In the normal LV geometry group, there was a good response to the tilt test, by causing a 3-fold increase in SVI while in the two LV hypertrophy groups, the index was virtually unchanged or even decreased. The normal LV geometry group patients showed a positive correlation between low-frequency power and the relative LV wall thickness (RLVWT) while the two LV hypertrophy groups did increases in RLVWT and LV myocardial mass, which were associated with a reduction in HRV. In conclusion, HRV is significantly reduced in essential hypertension and is also closely connected with cardiac structure and function. Patients with normal LV geometry showed a preserved response to the tilt test. LVH produces significant autonomic regulatory disturbances possibly due to the lower sensitivity of cardiac adrenoceptors independently of the pattern of LV hypertrophy.
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