1
|
Rivero-Moreno Y, Rodríguez-Rodríguez M, Machado-Paled D, Echevarria S, Pouwels S, Abou-Mrad A, Oviedo R. Robotic surgery across Latin America: a bibliometric analysis of research trends from 2009 to 2022. J Robot Surg 2024; 18:123. [PMID: 38492059 DOI: 10.1007/s11701-024-01865-2] [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] [Received: 01/12/2024] [Accepted: 02/05/2024] [Indexed: 03/18/2024]
Abstract
The rise of robotic surgery throughout the world, particularly in Latin America, justifies an objective evaluation of research in this field. This study aimed to use bibliometric techniques to identify the research trends and patterns of robotic surgery in Latin America. The research strategy used the terms "Robotic," "Surgery," and the name of all the Latin American countries, in all fields and collections of Web of Science database. Only original articles published between 2009 and 2022 were included. The software Rayyan, Bibliometric in the R Studio, and VOSViewer were used to develop the analyses. After screening, 96 articles were included from 60 different journals. There was a 22.51% annual increase in the scientific production of robotic surgery in the period studied. The more frequent topics by specialty were: Urology (35.4%), General Surgery (34.4%), and Obstetrics and Gynecology (12%). International cooperation was observed in 65.62% of the studies. The Latin American institution with the highest production of manuscripts was the Pontificia Universidad Católica de Chile. Mexico, Chile, and Brazil were, in descending order, the nations with the highest number of corresponding authors and total citations. When considering the total number of articles, Brazil ranked ahead of Chile. Scientific production regarding robotic surgery in Latin America has experienced accelerated growth since its beginning, supported by the high degree of collaboration with leading countries in the field.
Collapse
Affiliation(s)
| | | | - Debbye Machado-Paled
- Universidad Católica de Honduras Nuestra Señora Reina de La Paz, Tegucigalpa, Honduras
| | | | - Sjaak Pouwels
- Department of General, Abdominal Surgery and Coloproctology, Helios St. Elisabeth Klinik, Oberhausen, Germany
- Department of Intensive Care Medicine, Elisabeth-Tweesteden Hospital, Tilburg, The Netherlands
| | - Adel Abou-Mrad
- Centre Hospitalier Universitaire (CHU) d'Orléans, Orléans, France
| | - Rodolfo Oviedo
- Nacogdoches Medical Center, Nacogdoches, TX, USA
- University of Houston Tilman J. Fertitta Family College of Medicine, Houston, TX, USA
| |
Collapse
|
2
|
Rivero-Moreno Y, Echevarria S, Vidal-Valderrama C, Pianetti L, Cordova-Guilarte J, Navarro-Gonzalez J, Acevedo-Rodríguez J, Dorado-Avila G, Osorio-Romero L, Chavez-Campos C, Acero-Alvarracín K. Robotic Surgery: A Comprehensive Review of the Literature and Current Trends. Cureus 2023; 15:e42370. [PMID: 37621804 PMCID: PMC10445506 DOI: 10.7759/cureus.42370] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2023] [Indexed: 08/26/2023] Open
Abstract
Robotic surgery (RS) is an evolution of minimally invasive surgery that combines medical science, robotics, and engineering. The first robots approved by the Food and Drug Administration (FDA) were the Da Vinci Surgical System and the ZEUS Robotic Surgical System, which have been improving over time. Through the decades, the equipment applied to RS had undergone a wide transformation as a response to the development of new techniques and facilities for the assembly and implementation of the own. RS has revolutionized the field of urology, enabling surgeons to perform complex procedures with greater precision and accuracy, and many other surgical specialties such as gynecology, general surgery, otolaryngology, cardiothoracic surgery, and neurosurgery. Several benefits, such as a better approach to the surgical site, a three-dimensional image that improves depth perception, and smaller scars, enhance range of motion, allowing the surgeon to conduct more complicated surgical operations, and reduced postoperative complications have made robotic-assisted surgery an increasingly popular approach. However, some points like the cost of surgical procedures, equipment-instrument, and maintenance are important aspects to consider. Machine learning will likely have a role to play in surgical training shortly through "automated performance metrics," where algorithms observe and "learn" individual surgeons' techniques, assess performance, and anticipate surgical outcomes with the potential to individualize surgical training and aid decision-making in real time.
Collapse
Affiliation(s)
| | | | | | - Luigi Pianetti
- General Surgery, Universidad Nacional del Litoral, Argentina, ARG
| | | | | | | | | | | | | | | |
Collapse
|
3
|
Rudra P, Cardoso R, Echevarria S, Kaya B, Abdullah R, Baskara Salian R, Bhindar SZ, Zerin A, Patel T, Abdin Z, Al-Tawil M. Early Versus Delayed Thoracic Endovascular Aortic Repair for Blunt Traumatic Aortic Injury: A Systematic Review and Meta-Analysis. Cureus 2023; 15:e41078. [PMID: 37519486 PMCID: PMC10375940 DOI: 10.7759/cureus.41078] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 06/28/2023] [Indexed: 08/01/2023] Open
Abstract
Blunt aortic injury is the second most prevalent cause of patient fatalities post-trauma, closely following head injuries as the leading cause. In recent years, thoracic endovascular aortic repair (TEVAR) has evidently improved survival rates and reduced complications in patients suffering from blunt traumatic aortic injury (BTAI) in comparison to open surgery and non-operative management. It is difficult to characterize the appropriate criteria for the timing of TEVAR, whether early or delayed for BTAI, considering the discrepancies related to timing. Electronic databases, including PubMed, Scopus, the Cochrane Central Register of Controlled Trials (CENTRAL), and Embase, were searched through April 2023. The primary outcomes were short-term mortality and hospital and intensive care unit (ICU) stays. Time to TEVAR, acute respiratory distress syndrome, sepsis, deep vein thrombosis, delayed stroke, and renal failure were also evaluated. We included a total of seven studies, comprising 4177 patients who met the inclusion criteria. Short-term mortality was significantly higher in the early TEVAR group (RR: 1.86; 95% confidence interval (CI); (1.26-2.74); p<0.001; I2=33%). In contrast, the ICU length of stay was significantly shorter in the early group (mean difference: -2.82 days; 95% CI; (-4.09 - -1.56); p<0.0001; I2=55%). There was no significant difference between both groups in the presenting profile or postoperative complications. Patients undergoing delayed TEVAR had markedly lower mortality rates but a longer ICU stay. The need for future studies with more robust designs is imperative to investigate the factors influencing the timing of repair and the associated outcomes.
Collapse
Affiliation(s)
- Pranathi Rudra
- Internal Medicine, Gandhi Medical College, Secunderabad, IND
| | - Rayner Cardoso
- Medical School, All India Institue of Medical Sciences, Jodhpur, IND
| | | | - Berfin Kaya
- Obstetrics and Gynaecology, Faculty of Medicine, Izmir Kâtip Celebi University, Izmir, TUR
| | - Ramal Abdullah
- Medical School, Foundation University Medical College, Foundation University School of Health Sciences (FUSH), Islamabad, PAK
| | | | - Shah Zaib Bhindar
- Orthopaedic Surgery, Ghurki Trust and Teaching Hospital, Lahore, PAK
| | - Annu Zerin
- Internal Medicine, All India Institute of Medical Sciences, Bhubaneswar, IND
| | - Tirath Patel
- Medical School, American University of Antigua, St. John's, ATG
| | - Zain Abdin
- Critical Care Medicine, IMG Helping Hands, Albuquerque, USA
| | | |
Collapse
|
4
|
Echevarria S, Rauf F, Hussain N, Zaka H, Farwa UE, Ahsan N, Broomfield A, Akbar A, Khawaja UA. Typical and Atypical Presentations of Appendicitis and Their Implications for Diagnosis and Treatment: A Literature Review. Cureus 2023; 15:e37024. [PMID: 37143626 PMCID: PMC10152406 DOI: 10.7759/cureus.37024] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2023] [Indexed: 05/06/2023] Open
Abstract
Appendicitis, an acute inflammation of the appendix, affects all demographic groups and exhibits various incidences and clinical manifestations. While acute appendicitis typically presents with colicky periumbilical abdominal pain that localizes to the right lower quadrant, atypical presentations are more common in children, geriatric, and pregnant patient populations, leading to delays in diagnosis. Clinical evaluation, clinical scoring systems, and inflammatory markers are commonly used, but their limitations have led to the increased use of diagnostic imaging in patients suspected of appendicitis. Acute appendicitis is managed by non-operative and operative management, depending on whether it is uncomplicated or complicated. Developing diagnostic pathways to improve outcomes and reduce complications is crucial. Although medical advancements have been made, diagnosing and managing appendicitis can be challenging, mainly when patients are present atypically. This literature review aims to comprehensively review typical and atypical presentations of appendicitis and their current implications for diagnosis and treatment modalities in pediatric, adult, pregnant, and geriatric patient populations.
Collapse
Affiliation(s)
| | - Fatima Rauf
- Internal Medicine, Rawalpindi Medical University, Rawalpindi, PAK
| | - Nabeel Hussain
- Internal Medicine, Saba University School-Medicine, Devens, USA
| | - Hira Zaka
- Neurosurgery, Jinnah Postgraduate Medical Centre, Karachi, PAK
| | - Umm-E- Farwa
- Surgery, Jinnah Sindh Medical University, Karachi, PAK
| | - Nayab Ahsan
- Internal Medicine, Quaid-e-Azam Medical College, Bahawalpur, PAK
| | - Alison Broomfield
- Family Medicine, Spartan Health Sciences University, Vieux Fort, LCA
| | - Anum Akbar
- Pediatrics, University of Nebraska Medical Center, Omaha, USA
| | - Uzzam Ahmed Khawaja
- Pulmonary and Critical Care Medicine, Jinnah Medical and Dental College, Karachi, PAK
- Clinical and Translational Research, Dr Ferrer BioPharma, South Miami, USA
| |
Collapse
|
5
|
Simó G, Royo C, Mahia E, Baillés E, Echevarria S, Berenguer A, Albiol S. Symptomatic and toxicity management of cancer patients using a telephone support model led by the oncology nurse. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz276.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
6
|
Abstract
OBJECTIVES The general objective of this study is to explain differentials in prenatal care (PNC) utilization in a nationally representative sample of non-Hispanic White (Anglo), African American, and Mexican American women. METHOD The analysis is based on the National Maternal and Infant Health Survey. Multivariate, multinomial logistic regression models were employed to adjust for demographic, socioeconomic, medical risk, and program participation factors, as well as for perceived barriers. Both race/ethnic-specific models and models with race/ethnicity as a covariate were estimated. RESULTS Inadequate PNC use was much less common among Anglos (10.4%) as compared to African Americans and Mexican Americans (22.1% and 25.0%, respectively). In fully adjusted models, the odds ratio (OR) of African Americans receiving inadequate PNC was 1.46, while the risk for Mexican Americans was greater (OR = 1.93). Perception of obstacles to PNC access doubled the odds of receiving inadequate care, but this psychosocial variable had little impact on race/ethnic differentials. Race/ethnic-specific models uncovered potentially important racial/ethnic variations associated with perception of barriers, marital status, and program participation. CONCLUSIONS Although the same risk factors sometimes have different effects across race/ethnic groups, and while certain findings indicate a beneficial impact of health outreach efforts and program participation, our findings support the conclusion that PNC utilization continues to be stratified along race/ethnic lines.
Collapse
Affiliation(s)
- W P Frisbie
- Population Research Center, Department of Sociology, University of Texas at Austin, 78712, USA.
| | | | | |
Collapse
|
7
|
Ayuso-Mateos JL, Pereda M, Gómez Del Barrio A, Echevarria S, Fariñas MC, García-Palomo D. Slowed reaction time in HIV-1-seropositive intravenous drug users without AIDS. Eur Neurol 2000; 44:72-8. [PMID: 10965157 DOI: 10.1159/000008200] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
One hundred and fourteen subjects with a history of intravenous drug abuse (65 subjects infected with the human immunodeficiency virus, HIV, and 49 seronegative controls) were evaluated with a reaction time (RT) test which included one measure of simple RT and three measures of complex RT. All seropositive patients were in HIV stages A or B. The multivariate analysis of covariance controlled for age, educational level and Montgomery-Asberg Depression Rating Scale score, showed differences between seropositive subjects and controls: the seropositive group scored slower than the control group on two RT tasks, simple RT and a more complex RT measure. Our results suggest that computerized RT measures may be more sensitive than conventional neuropsychological tests in detecting subtle cognitive and motor retardation in the early stages of HIV infection, thus extending the findings of other studies to the intravenous drug-user population.
Collapse
Affiliation(s)
- J L Ayuso-Mateos
- Department of Medicine and Psychiatry, University of Cantabria Medical School, Santander, Spain.
| | | | | | | | | | | |
Collapse
|
8
|
Pereda M, Ayuso-Mateos JL, Gómez Del Barrio A, Echevarria S, Farinas MC, García Palomo D, González Macias J, Vázquez-Barquero JL. Factors associated with neuropsychological performance in HIV-seropositive subjects without AIDS. Psychol Med 2000; 30:205-217. [PMID: 10722191 DOI: 10.1017/s0033291799001348] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Previous research has suggested that several factors may influence the presence of cognitive impairment in human immunodeficiency virus (HIV) infection. The objective of this study was to assess the impact of cognitive reserve capacity and other variables on neuropsychological performance in early HIV infection. METHODS The neuropsychological performance of 100 HIV-seropositive subjects without AIDS (71 men and 29 women) was compared with that of 63 seronegative controls (51 men and 12 women). Measures included a neuropsychological battery, a medical examination and a psychiatric assessment. Cognitive reserve scores were based on a combination of years in school, a measure of educational achievement, and an estimate of pre-morbid intelligence. RESULTS HIV-positive subjects had longer reaction time latencies than HIV-negative subjects. Those in the HIV-positive group with low cerebral reserve scores showed the poorest performance on the neuropsychological tests. The prevalence of cognitive impairment was significantly higher in the HIV-positive group (27%) than in the controls (32%). Multiple regression analysis and logistic regression analysis were used to identify factors associated with global neuropsychological performance and cognitive impairment. Older age, lower cerebral reserve scores and not being on zidovudine treatment were associated with lower global neuropsychological scores and with the presence of cognitive impairment. CONCLUSIONS Our results suggest that although cognitive impairment is not characteristic of early HIV infection, there is a subgroup of subjects who perform more poorly than expected. A lower reserve capacity, older age and not being on zidovudine treatment are factors that lower the threshold for neuropsychological abnormalities in cases of early HIV infection.
Collapse
Affiliation(s)
- M Pereda
- Department of Medicine and Psychiatry, University of Cantabria Medical School, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | | | | | | | | | | | | | | |
Collapse
|
9
|
Del Pozo MA, Arias JR, Pinilla J, Labarga P, Alcoba M, Martinez de la Cruz FJ, Anton F, Carro JA, Perez MR, Echevarria S, Garrote E, Moreno-Otero R. Interferon alpha treatment of chronic hepatitis C in HIV-infected patients receiving zidovudine: efficacy, tolerance and response related factors. Hepatogastroenterology 1998; 45:1695-701. [PMID: 9840131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
BACKGROUND/AIMS In our area most of the human immunodeficiency virus (HIV) infected patients are intravenous drug users; HIV and hepatitis C virus infections often coexist in these patients. Due to the repercussions of both infections, we designed a trial to evaluate the efficacy, response-related factors and tolerance during an eight-month regime of recombinant interferon alpha-2b on hepatitis C virus infection. METHODOLOGY We included 79 patients in an open, prospective and multicentric trial with zidovudine and interferon alpha-2b. Response to interferon treatment was evaluated by biochemical and histopathological criteria. RESULTS A complete response (alanine aminotransferase normalization) was obtained in 57.4% of patients. The significant response-related factors were: degree of histopathological activity, CD4+ cell number and initial leukocyte number. CONCLUSIONS Recombinant interferon therapy seems to be effective for chronic hepatitis C in HIV infected patients; the best response was in those with active chronic hepatitis and CD4+ cell counts > or = 200/mm3. General tolerance was variable, although side effects were not different from those seen in non-HIV patients. The most common side effect was flu-like syndrome (constitutional manifestations), with no interference on treatment continuity; however, hematological toxicity prevents the indiscriminate use of interferon.
Collapse
Affiliation(s)
- M A Del Pozo
- Unit of Infectious Diseases, Hospital Clinico Universitario, Valladolid, Spain
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Echevarria S, San Miguel G, Pelayo T, Salas C, Casafont F, Crespo F, Pons Romero F. Risk for hepatitis C virus (HCV) and human immunodeficiency virus (HIV) infections among prostitutes. Genitourin Med 1993; 69:321-2. [PMID: 7721298 PMCID: PMC1195098 DOI: 10.1136/sti.69.4.321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
11
|
Herreros Guilarte B, Guitera MV, Barrio E, Gomez Roman JJ, Echevarria S. Leiomyosarcoma of Meckel's diverticulum in the proximal jejunum. Eur J Med 1993; 2:371-3. [PMID: 8252185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- B Herreros Guilarte
- National Hospital Marqués de Valdecilla, Faculty of Medicine, Santander, Spain
| | | | | | | | | |
Collapse
|
12
|
Abstract
We report a young male IVDA with CAH caused by HBV who was infected with HIV and who contracted listeriosis in the form of acute hepatitis and bacteremia, with epithelioid granulomas in the liver. Treatment with ampicillin and a aminoglycoside for 3 weeks was followed by rapid and maintained improvement. Involvement of the liver is unusual in listeriosis and, as far as we are aware, it has not been described previously in patients with HIV infection.
Collapse
Affiliation(s)
- T De Vega
- Gastroenterology Service, Marqués de Valdecilla University Hospital, Santander, Spain
| | | | | | | | | | | |
Collapse
|
13
|
Miguel GS, Crespo J, Echevarria S, D'Francisco A, Ullate PG, Romero FP. Hepatitis C Virus Antibodies in Patients on Hemodialysis. Infect Control Hosp Epidemiol 1992. [DOI: 10.1086/646522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
14
|
San Miguel G, Crespo J, Echevarria S, D'Francisco A, Ullate PG, Romero FP. Hepatitis C Virus Antibodies in Patients on Hemodialysis. Infect Control Hosp Epidemiol 1992. [DOI: 10.2307/30145498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
San Miguel G, Crespo J, Echevarria S, D'Francisco A, Gomez Ullate P, Pons Romero F. Hepatitis C virus antibodies in patients on hemodialysis. Infect Control Hosp Epidemiol 1992; 13:254, 256. [PMID: 1375612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
16
|
Echevarria S, Casafont F, Miera M, Lozano JL, de la Cruz F, San Miguel G, Pons Romero F. Interleukin-2 and natural killer activity in acute type B hepatitis. Hepatogastroenterology 1991; 38:307-10. [PMID: 1937376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Natural killer (NK) cell activity against K562 cell line, and interleukin-2 (IL-2) activity in supernatants from lectin-activated PBMC cultures from 17 patients with acute hepatitis B in the early phase of illness were studied. These patients showed enhanced NK cytotoxicity and higher levels of IL2 activity as compared with control subjects. There was a positive correlation between cytotoxicity values and levels of IL2 activity. Furthermore, in the recovery phase of illness there was a tendency towards normalization in both parameters. When patients were divided in accordance with markers of HBV replication, HBV-DNA positive patients showed increased NK cell activity and IL2 levels as compared with the control group, whereas in HBV-DNA-negative patients no differences were found. However, no differences were found between patients with HBeAg and patients with anti-HBe. These results suggest that natural cytotoxicity is increased early in the course of acute hepatitis B, while NK cell activity returns to normal later, during convalescence. Enhanced NK cell activity appears to be secondary, at least in part, to increased production of IL2. Natural cytotoxicity may be one mechanism that controls the HBV infection before other cytotoxic mechanisms become fully operative.
Collapse
Affiliation(s)
- S Echevarria
- Department of Internal Medicine, H.N. Marqués de Valdecilla, Faculty of Medicine, Santander, Spain
| | | | | | | | | | | | | |
Collapse
|
17
|
Ledesma F, Echevarria S, Casafont F, Lozano JL, Pons-Romero F. Natural killer cell activity in alcoholic cirrhosis: influence of nutrition. Eur J Clin Nutr 1990; 44:733-40. [PMID: 2269252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Forty-five patients with alcoholic cirrhosis, 20 chronic alcoholics with normal liver function tests and 36 healthy subjects were investigated. A combined index of nine anthropometric and biochemical parameters (triceps skinfold, arm muscle circumference, mid-arm muscle area, body fat percentage, creatinine-height index, serum albumin, plasma transferrin, prealbumin and retinol-binding protein levels) was used to evaluate nutritional status, allowing a distinction to be made between those patients with adequate nutrition (group I: 40 per cent of cirrhotics and 55 per cent of alcoholics), those with slight malnutrition (group II: 37.7 per cent of cirrhotics and 45 per cent of alcoholics) and those with severe malnutrition (group III: 22.2 per cent of cirrhotics and none alcoholic). Natural Killer (NK) cell activity of peripheral blood lymphocytes was determined using a 51Cr releasing cytotoxicity assay against K562 target cells. This was significantly lower in the cirrhotics than in the controls and chronic alcoholics (P less than 0.001 and P less than 0.01 respectively), but there was no difference between the latter two groups. Natural Killer activity was significantly lower in samples obtained from cirrhotics with severe malnutrition than in those with adequate nutrition, suggesting that malnutrition may play a role in the onset of the immunological disorder. No relationship could be established between nutritional status, NK activity and the clinical activity of the disease using Orrego's index on the liver function tests.
Collapse
Affiliation(s)
- F Ledesma
- Department of Medicine, Valdecilla Hospital, Faculty of Medicine, Santander, Spain
| | | | | | | | | |
Collapse
|
18
|
Casafont F, Echevarria S, Pons Romera F. Interleukin-2 activity and serum levels of soluble interleukin-2 receptors in chronic active hepatitis B. Dig Dis Sci 1990; 35:1045. [PMID: 2248665 DOI: 10.1007/bf01537254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
19
|
Abstract
The clinical course, changes in liver function tests and the behaviour of viral markers over the course of time have been examined in 45 patients with acute hepatitis B and 14 patients with acute hepatitis caused by B and D viruses coinfection. There were no significant differences either in the clinical course or in the liver function tests, in the two groups. The changes in serum viral markers were as follows: HBV-DNA was the first marker to disappear; this was closely followed by HBeAg, and HBsAg was the last marker to become negative, during convalescence. This pattern was not altered by Delta coinfection. When we quantified serum HBV-DNA in both groups of patients, we found that Delta virus infection led to parital inhibition of HBV replication, so that serum HBV-DNA levels were significantly lower in those patients with acute hepatitis B who were simultaneously infected with Delta virus.
Collapse
Affiliation(s)
- A L Morante
- Gastrointestinal Unit, Hospital Valdecilla, Faculty of Medicine, University of Cantabria, Spain
| | | | | | | | | | | |
Collapse
|
20
|
Echevarria S, Arjona R, Alonso J, Riancho JA, Revuelta JM, Macias JG. False aneurysm formation after Salmonella virchow infection of a pre-existent ventricular aneurysm--survival after surgical resection. Postgrad Med J 1989; 65:168-70. [PMID: 2813237 PMCID: PMC2429238 DOI: 10.1136/pgmj.65.761.168] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A 55 year old man with a left ventricular aneurysm, secondary to a previous myocardial infarction, was hospitalized due to a Salmonella virchow bacteraemia. During a 3-week hospital course he was persistently bacteraemic and febrile despite antibiotic treatment. Gallium isotope scanning and 2-D-echocardiography were helpful in demonstrating the presence of an infected false aneurysm at the site of a true aneurysm. Surgical resection in addition to prolonged antibiotic therapy was necessary for cure.
Collapse
Affiliation(s)
- S Echevarria
- Department of Internal Medicine, National Hospital Marques de Valdecilla, Faculty of Medicine, University of Santander, Spain
| | | | | | | | | | | |
Collapse
|
21
|
Pons Romero F, Echevarria S, Rodriguez de Lope C, San Miguel G. Suppressor T cell activity and antibodies to alcohol altered hepatocytes. J Clin Pathol 1984; 37:598. [PMID: 6233331 PMCID: PMC498791 DOI: 10.1136/jcp.37.5.598-a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
22
|
Rodriguez de Lope C, Sacristan MV, San Miguel G, Echevarria S, Pons Romero F. Influence of serum factors on T-lymphocytes in alcoholic liver disease. Acta Gastroenterol Belg 1982; 45:215-23. [PMID: 6984271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|