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  1. Article ; Online: Can dead space fraction predict the length of mechanical ventilation in exacerbated COPD patients?

    Raymond Farah / Nicola Makhoul

    International Journal of COPD, Vol 2009, Iss default, Pp 437-

    2009  Volume 441

    Abstract: Raymond Farah1, Nicola Makhoul21Specialist in Internal Medicine and Nephrology, Department of Internal Medicine B, Ziv Medical Center, Safed-Israel; 2Director of Respiratory Intensive Care Unit, Western Galilee Hospital, Nahariya, IsraelBackground: ... ...

    Abstract Raymond Farah1, Nicola Makhoul21Specialist in Internal Medicine and Nephrology, Department of Internal Medicine B, Ziv Medical Center, Safed-Israel; 2Director of Respiratory Intensive Care Unit, Western Galilee Hospital, Nahariya, IsraelBackground: Chronic obstructive pulmonary disease (COPD) is a condition in which there is limited airflow during expiration (exhaling, or breathing out) that is not fully reversible and usually worsens over time. The disease is estimated to kill more than 100,000 Americans each year, and costs related to care of patients with COPD are significant. Physiologically, COPD represents a disruption in ventilation and in the exchange of gases in the lungs. Laboratory tests indicate elevated CO2 levels, gradual reduction of the levels of oxygen and pH in arterial blood, and a consequent rise in the dead space fraction (DSF) of the lungs.Objective: Patients with COPD exacerbation represent a large portion of those artificially ventilated. In an attempt to develop a prognostic tool for length of treatment, we compared the proportion of DSF to the length of mechanical ventilation (MV).Methods: This study included 73 patients admitted to the intensive care unit (ICU) where they received MV due to exacerbation of COPD. Each patient’s arterial blood gases (ABG) were measured upon admission. PeCO2 was tested using a Datex S/5 instrument. Subsequently, DSF was calculated using the Bohr equation. Statistical data was analyzed using SPSS software.Results: Patients included in the study were ventilated from 6 to 160 hours (average 40 ± 47). In addition to ABG measurements, PeCO2 (expired CO2) levels were measured and DSF calculated for each patient. DSF values varied from 0.21 to 0.76 (average 0.119 ± 0.489). No correlation was found between DSF and length of artificial ventilation.Conclusion: Evaluation of DSF does not provide a factor in estimating the length of treatment for patients with acute respiratory failure due to COPD exacerbation.Keywords: dead space, weaning, mechanical ventilation, COPD
    Keywords Diseases of the respiratory system ; RC705-779 ; Specialties of internal medicine ; RC581-951 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 610
    Language English
    Publishing date 2009-11-01T00:00:00Z
    Publisher Dove Medical Press
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Spotted Fever Group Rickettsioses in Israel, 2010–2019

    Regev Cohen / Talya Finn / Frida Babushkin / Yael Paran / Ronen Ben Ami / Alaa Atamna / Sharon Reisfeld / Gabriel Weber / Neta Petersiel / Hiba Zayyad / Eyal Leshem / Miriam Weinberger / Yasmin Maor / Nicola Makhoul / Lior Nesher / Galia Zaide / Dar Klein / Adi Beth-Din / Yafit Atiya-Nasagi

    Emerging Infectious Diseases, Vol 27, Iss 8, Pp 2117-

    2021  Volume 2126

    Abstract: In a multicenter, nationwide, retrospective study of patients hospitalized with spotted fever group rickettsiosis in Israel during 2010–2019, we identified 42 cases, of which 36 were autochthonous. The most prevalent species was the Rickettsia conorii ... ...

    Abstract In a multicenter, nationwide, retrospective study of patients hospitalized with spotted fever group rickettsiosis in Israel during 2010–2019, we identified 42 cases, of which 36 were autochthonous. The most prevalent species was the Rickettsia conorii Israeli tick typhus strain (n = 33, 79%); infection with this species necessitated intensive care for 52% of patients and was associated with a 30% fatality rate. A history of tick bite was rare, found for only 5% of patients; eschar was found in 12%; and leukocytosis was more common than leukopenia. Most (72%) patients resided along the Mediterranean shoreline. For 3 patients, a new Rickettsia variant was identified and had been acquired in eastern, mountainous parts of Israel. One patient had prolonged fever before admission and clinical signs resembling tickborne lymphadenopathy. Our findings suggest that a broad range of Rickettsia species cause spotted fever group rickettsiosis in Israel.
    Keywords R. conorii Israeli tick typhus strain ; Rickettsia conorii israelensis ; R. conorii Malish strain ; Rickettsia conorii conorii ; Rickettsia africae ; spotted fever group rickettsiosis ; Medicine ; R ; Infectious and parasitic diseases ; RC109-216
    Subject code 610
    Language English
    Publishing date 2021-08-01T00:00:00Z
    Publisher Centers for Disease Control and Prevention
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: High blood pressure response to stress ergometry could predict future hypertension.

    Farah, Raymond / Shurtz-Swirski, Revital / Nicola, Makhoul

    European journal of internal medicine

    2009  Volume 20, Issue 4, Page(s) 366–368

    Abstract: Background: Previous studies have shown that exaggerated blood pressure (BP) during exercise is a valid risk predictor for future hypertension in most men and women, yet the use of ergometry as a means of early detection of incipient hypertension still ... ...

    Abstract Background: Previous studies have shown that exaggerated blood pressure (BP) during exercise is a valid risk predictor for future hypertension in most men and women, yet the use of ergometry as a means of early detection of incipient hypertension still requires confirmation.
    Objectives: To assess the clinical utility of exercise BP measurement for the evaluation of risk for developing new-onset hypertension.
    Methods: Thirty individuals with normal BP were enrolled in this study and were subsequently divided into two groups: 13 persons with in-exercise hypertension were compared with 17 matched persons who were normotensive during ergometry. Their blood pressure was monitored during follow-up of two years.
    Results: More individuals in the exercise-hypertensive group developed hypertension after one or two years than those normotensive during the exercise (respectively, one year: 3 vs.0, p=0.03, two years: 10 vs. 1, p<0.0001). Both the systolic and diastolic BPs significantly differed between the two groups. Eighty four percent of those with exaggerated BP (>or=210 mm Hg) during the treadmill exercise developed hypertension after 2 years. The sensitivity and specificity of in-exercise hypertension for predicting its 2 year occurrence were, respectively, 91% and 84%.
    Conclusion: Even in the absence of hypertension, its development during stress ergometry could be considered a predictive marker for the future development of hypertension, and can be a potential tool for identifying normotensive individuals at high risk. These individuals should be followed up and their BP controlled for a long time.
    MeSH term(s) Adult ; Blood Pressure ; Early Diagnosis ; Ergometry ; Exercise Test ; Female ; Follow-Up Studies ; Humans ; Hypertension/diagnosis ; Hypertension/epidemiology ; Hypertension/physiopathology ; Male ; Middle Aged ; Predictive Value of Tests ; Risk Factors ; Young Adult
    Language English
    Publishing date 2009-07
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1038679-8
    ISSN 1879-0828 ; 0953-6205
    ISSN (online) 1879-0828
    ISSN 0953-6205
    DOI 10.1016/j.ejim.2008.09.016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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