76
|
Faithfull S, White I. Delivering sensitive health care information: challenging the taboo of women's sexual health after pelvic radiotherapy. PATIENT EDUCATION AND COUNSELING 2008; 71:228-233. [PMID: 18339512 DOI: 10.1016/j.pec.2007.12.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2007] [Revised: 12/10/2007] [Accepted: 12/18/2007] [Indexed: 05/26/2023]
Abstract
OBJECTIVE The aim of this study was to elicit current practice with regard to the content and delivery of patient education for women undergoing pelvic radiotherapy. METHODS A 38-item questionnaire was sent to all radiotherapy departments (n=65) and a convenience sample of specialist gynaecological oncology nurses (n=166), with response rates of 62% (n=40) and 42% (n=52), respectively. Data analysis of 32 different patient education leaflets from individual cancer units, cancer networks and vaginal dilator manufacturers was conducted. Content was evaluated on the inclusion and accuracy of the key knowledge women should receive before completing pelvic radiotherapy. RESULTS Patient education focused on the technical aspects of vaginal dilation with minimal content on psychosocial 6% (n=2) or sexual health components 44% (n=14). It was evident from the information leaflets reviewed and questionnaire responses that there was duplication of verbal and written information provision in the clinical setting as opposed to using different information strategies to provide more comprehensive coverage of knowledge gaps in post-treatment sexual rehabilitation. CONCLUSION Results suggest the provision of vaginal dilation advice and sexual health information may benefit from being placed in the wider context of assessing treatment impact on women's health. PRACTICE IMPLICATIONS It is important to analyse the management of sensitive content, within both written information materials and verbal consultations, to determine the most effective information provision strategies that support sexual health interventions in cancer practice.
Collapse
|
77
|
Faithfull S, Cockle-Hearne J, Knibb W, Toms E, Thomas H, Cox A. 8181 POSTER Meeting the support and follow-up needs of women with ovarian cancer: an evaluation of a nurse-led telephone follow-up service. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71683-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
78
|
White I, Faithfull S, Allan H. 8066 ORAL Development of an integrated psychosexual clinical assessment strategy for women receiving pelvic radiotherapy. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71568-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
79
|
Faithfull S, Knibb W, Riemmer-Hommel P. 8035 INVITED Choice, Equity and Access in European Health Care. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71539-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
80
|
Ream E, Quennell A, Fincham L, Faithfull S, Khoo V, Wilson-Barnett J, Richardson A. 8082 ORAL Understanding the needs of men with prostate cancer: a multicentre UK survey. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71584-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
81
|
White ID, Faithfull S. Vaginal dilation associated with pelvic radiotherapy: a UK survey of current practice. Int J Gynecol Cancer 2007; 16:1140-6. [PMID: 16803497 DOI: 10.1111/j.1525-1438.2006.00452.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
This paper presents results from the first UK national survey of patient information and interventions related to vaginal dilation in pelvic radiotherapy (RT). The aim was to elicit current practice with regard to the target population, content/process of patient education, and the evaluation of compliance in relation to this intervention. A 38-item questionnaire was sent to all RT departments (n= 65) and a convenience sample of specialist gynecological oncology nurses (n= 166), with response rates of 62% (n= 40) and 31% (n= 52), respectively. Data analysis (via SPSS v11) used both descriptive and inferential statistics. Divergence of opinion was evident regarding the specific target audience for dilator education, and only a limited number of elements of vaginal dilator technique achieved consensus. Sixty-seven percent of respondents stated they carried out a wider sexual health assessment associated with the provision of dilator information, although its content varied considerably. Results suggest the provision of vaginal dilation advice may benefit from being placed in the wider context of assessing treatment impact on women's sexual health, raising the profile of appropriate psychosexual assessment, and intervention in clinical oncology practice. Further research could determine the efficacy of vaginal dilation in preventing development of vaginal stenosis among women receiving pelvic RT.
Collapse
|
82
|
Desnoo L, Faithfull S. A qualitative study of anterior resection syndrome: the experiences of cancer survivors who have undergone resection surgery. Eur J Cancer Care (Engl) 2007; 15:244-51. [PMID: 16882120 DOI: 10.1111/j.1365-2354.2005.00647.x] [Citation(s) in RCA: 108] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study aimed to explore how individuals recovered and adapted following surgical resection of their rectal cancer and the syndrome that occurs as a consequence of this operation. This syndrome, 'anterior resection syndrome', consists of frequency, urgency, fragmentation and incontinence of faeces, and is thought to occur in 90% of patients who have received this type of surgery. Little qualitative research has been undertaken in this area, and this study adds to current quality of life data and explores supportive care strategies that nurses could use to assist patients. This study uses a grounded theory approach and in-depth interviews to explore patient's experiences. Participants were recruited from a cancer unit within the UK. Participants were recruited from a total population sample of 27 patients who had received surgery from 2001 to 2002. Following eligibility criteria to exclude those who had disease progression, seven patients were identified 1 year following surgery. Interviews were used to explore the experience of the syndrome. Three categories were identified: adapting to the physical changes, psychological adaptation and stigma. A secondary theme, running throughout all these categories, was the feeling of confidence and normality. Although the physical changes were expected as a consequence of surgery, most participants described the difficulty in controlling and managing symptoms in their period of recovery. Developing a philosophical stance was important in managing the lack of control and returning to perceived normality, despite the social stigma of bowel problems. Information on a range of strategies to manage physical symptoms is helpful in providing supportive care. Understanding that patients often rely on inappropriate strategies for management and are reluctant to discuss symptoms is important. The specialist nurse has a role in providing supportive care in managing chronic symptoms following cancer treatment.
Collapse
|
83
|
Davidson SE, Faithfull S. Late radiotherapy effects: is bowel morbidity adequately documented or patients' needs managed appropriately? Clin Oncol (R Coll Radiol) 2006; 18:419-20. [PMID: 16817334 DOI: 10.1016/j.clon.2006.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
84
|
Foubert J, Faithfull S. Education in Europe: are cancer nurses ready for the future? JOURNAL OF B.U.ON. : OFFICIAL JOURNAL OF THE BALKAN UNION OF ONCOLOGY 2006; 11:281-4. [PMID: 17309150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Much has been written about the need for continuing professional development for nurses to enhance practice and promote quality-nursing care. However, little has been written about the challenges faced by European nurses in keeping up-to-date with health care developments in relation to specialist areas. Educators providing courses are currently facing many challenges; not only the increasing costs of specialist education provision, distance learning, but also the ever increasing changes in health care requiring modification of specialist nursing skills and knowledge within curriculum. This means that educators need to rethink approaches to teaching and learning and links with practice. One of the challenges for the future is how to shift the skills needed for support of cancer patients out into the community , providing quality care for those requiring outpatient and ambulatory cancer care provision. However, continuing professional development is often encouraged as a mechanism for delivering service training rather perceived as developmental for the individual. The European Oncology Nursing Society (EONS) as a society has grasped the initiative for educational development with educational needs analysis, a curriculum identifying practice as central to learning, practice-related topics such as TITAN and the development of education for cancer in older people. There are enormous possibilities opening up within health care for us to develop cancer nursing in many settings and contexts, not only as a result of improved survival and treatments but because vocational education is being scrutinised as part of the Bologna agreement. Lastly, educationalists need to grasp these opportunities and take the initiative and strengthen education for nurses who don't know they need it. Improvements in specialist cancer care are shared and lessons learnt can translate into other nursing services so that we can provide better care for cancer patients throughout their cancer journey.
Collapse
|
85
|
White ID, Faithfull S. Vaginal dilation associated with pelvic radiotherapy: a UK survey of current practice. Int J Gynecol Cancer 2006. [DOI: 10.1136/ijgc-00009577-200605000-00029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
This paper presents results from the first UK national survey of patient information and interventions related to vaginal dilation in pelvic radiotherapy (RT). The aim was to elicit current practice with regard to the target population, content/process of patient education, and the evaluation of compliance in relation to this intervention. A 38-item questionnaire was sent to all RT departments (n = 65) and a convenience sample of specialist gynecological oncology nurses (n = 166), with response rates of 62% (n = 40) and 31% (n = 52), respectively. Data analysis (via SPSS v11) used both descriptive and inferential statistics. Divergence of opinion was evident regarding the specific target audience for dilator education, and only a limited number of elements of vaginal dilator technique achieved consensus. Sixty-seven percent of respondents stated they carried out a wider sexual health assessment associated with the provision of dilator information, although its content varied considerably. Results suggest the provision of vaginal dilation advice may benefit from being placed in the wider context of assessing treatment impact on women's sexual health, raising the profile of appropriate psychosexual assessment, and intervention in clinical oncology practice. Further research could determine the efficacy of vaginal dilation in preventing development of vaginal stenosis among women receiving pelvic RT.
Collapse
|
86
|
Faithfull S. E. Milly L. Haagedoorn Lecture EACE 2006. Developing oncology nurse education and training across Europe. JOURNAL OF CANCER EDUCATION : THE OFFICIAL JOURNAL OF THE AMERICAN ASSOCIATION FOR CANCER EDUCATION 2006; 21:212-5. [PMID: 17542712 DOI: 10.1080/08858190701347697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Education is an important tool in the development of specialist nursing within Europe. Awareness of cancer and its treatment and the impact it has on individuals and families helps in reducing negative perceptions and fatalistic attitudes. Education not only improves care, but can enhance outcomes; research studies have identified that appropriate and timely nursing can make a difference. There are several drivers for change within cancer nurse education. First, the increasing complexity of cancer treatment delivery plus the shift of cancer therapy and support into community and ambulatory settings are demanding wider skills. Second, the implementation of the Bologna Process across Europe aiming to make study programs compatible and comparable to facilitate transparency and academic recognition at a European level. As a result of the Bologna declaration, educational systems in most European countries are in the process of reform. These changes are an opportunity for cancer nursing to establish and constitute a starting point for providing a commonality of curricula for cancer nurses across Europe.
Collapse
|
87
|
Faithfull S, Cook K, Lucas C. Palliative care of patients with a primary malignant brain tumour: case review of service use and support provided. Palliat Med 2005; 19:545-50. [PMID: 16295287 DOI: 10.1191/0269216305pm1068oa] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Individuals with a primary malignant brain tumour require intensive palliative care services because of the symptoms and cognitive problems they experience. Many of these patients stay with their families at home, being supported by palliative care home teams rather than being admitted for hospice care. The provision of respite care and community services to support these families goes largely unreported. This study arises out of a need to review support services for patients and carers within one cancer and palliative care service. This retrospective case analysis identifies that there are a range of services used in the community to support patients with primary malignant brain tumours but that only a small proportion receive inpatient hospice care. District nursing services were extensively used but also a high number (74%) of patients were admitted to local hospitals for symptom management. This paper attempts to explore the services utilized but also questions the apparently limited provision of hospice care for supporting individuals in the palliative care stages of such an illness. This paper considers the illness trajectory, the complex symptoms experienced by patients and respite services utilized. Issues of those engaged in informal care giving and in the provision of support for those with a primary malignant glioma are also considered.
Collapse
|
88
|
Faithfull S. Assessing fatigue and self-care strategies in patients receiving radiotherapy for non-small-cell lung cancer, by Diana Borthwick, Gillian Knowles Shanne McNamara, Rita O'Dea, Paul Stroner [European Journal of Oncology Nursing 7(4), 231-241]. Eur J Oncol Nurs 2004; 8:85-6. [PMID: 15003749 DOI: 10.1016/j.ejon.2003.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
89
|
Faithfull S, Deery P. Implementation of capecitabine (Xeloda®) into a cancer centre: UK experience. Eur J Oncol Nurs 2004; 8 Suppl 1:S54-62. [PMID: 15341882 DOI: 10.1016/j.ejon.2004.06.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Switching patients from intravenous 5-FU/LV to oral capecitabine (Xeloda) for the treatment of metastatic colorectal cancer is associated with a reduction in the need for hospitalisations to manage 5-FU-associated delivery and complications, with resulting healthcare savings. However, implementing oral therapy with capecitabine within a cancer centre in the UK has required a considerable change in attitude within healthcare services. The resulting need for patients to take an active role in their treatment, and the co-ordination and monitoring of such a service at home has raised issues for chemotherapy services. To enhance patient involvement and compliance with medication a patient guide was developed to educate, and support individuals and enable them to understand the rationale for treatment and when to seek help. In addition, patients are encouraged to monitor and record symptoms in a diary. This change in service focus has required an investment in time educating and informing patients, community health workers and hospital practitioners. This change has been co-ordinated through the chemotherapy outpatient clinic. Effective communication between hospital and home has been important in implementing oral chemotherapy. While the initial challenge of monitoring and educating patients receiving capecitabine has been met, the Primary Care team and cancer centre need to continue to assess side effects and patient compliance in order to improve knowledge of capecitabine among healthcare professionals and ensure safe practice.
Collapse
|
90
|
Deery P, Faithfull S. Developing a patient pathway to deliver a new oral chemotherapy. PROFESSIONAL NURSE (LONDON, ENGLAND) 2003; 19:102-6. [PMID: 14593785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Introducing service delivery changes is rarely straightforward and requires careful planning. This paper reports on the work involved in preparing for, and implementing, an oral chemotherapy programme to be delivered on an outpatient basis. It outlines the involvement of both hospital and community staff and stresses the importance of providing patients with information.
Collapse
|
91
|
White I, Faithfull S. 1106 Survey of current UK practice in vaginal dilatation associated with pelvic radiotherapy. EJC Suppl 2003. [DOI: 10.1016/s1359-6349(03)91132-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
92
|
Faithfull S. Re: Management of acute radiotherapy induced skin reactions: a literature review. Eur J Oncol Nurs. 2001 Dec;5(4):221-33. Eur J Oncol Nurs 2002; 6:179. [PMID: 12849594 DOI: 10.1054/ejon.2002.0190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
93
|
Faithfull S, Hilton M, Booth K. Survey of information leaflets on advice for acute radiation skin reactions in UK radiotherapy centres: a rationale for a systematic review of the literature. Eur J Oncol Nurs 2002; 6:176-8. [PMID: 12849593 DOI: 10.1054/ejon.2002.9176] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
94
|
Faithfull S. Review. J Res Nurs 2002. [DOI: 10.1177/136140960200700410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
95
|
Faithfull S, Corner J, Meyer L, Huddart R, Dearnaley D. Evaluation of nurse-led follow up for patients undergoing pelvic radiotherapy. Br J Cancer 2001; 85:1853-64. [PMID: 11747326 PMCID: PMC2364007 DOI: 10.1054/bjoc.2001.2173] [Citation(s) in RCA: 87] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
This study reports results from a randomised controlled trial of nurse-led care and was designed to determine whether nurse-led follow up improved patients morbidity and satisfaction with care in men treated with radical radiotherapy for prostate and bladder cancer. The aim was to compare outcomes in terms of toxicity, symptoms experienced, quality of life, satisfaction with care and health care costs, between those receiving nurse-led care and a group receiving standard care. The study population was of men prescribed radical radiotherapy (greater than 60 Gy). Participants completed self-assessment questionnaires for symptoms and quality of life within the first week of radiotherapy treatment, at week 3, 6 and 12 weeks from start of radiotherapy. Satisfaction with clinical care was also assessed at 12 weeks post-treatment. Observer-rated RTOG toxicity scores were recorded pre-treatment, weeks 1, 3, 6 and 12 weeks from start of radiotherapy. The results presented in this paper are on 115 of 132 (87%) of eligible men who agreed to enter the randomised trial. 6 men (4%) refused and 11 (8%) were missed for inclusion in the study. Data were analysed as a comparison at cross-sectional time points and as a general linear model using multiple regression. There was no significant difference in maximum symptom scores over the time of the trial between nurse-led follow-up care and conventional medical care. Differences were seen in scores in the initial self assessment of symptoms (week 1) that may have been as a result of early nursing intervention. Those men who had received nurse-led care were significantly more satisfied (P < 0.002) at 12 weeks and valued the continuity of the service provided. There were also significant (P < 0.001) cost benefits, with a 31% reduction in costs with nurse-led, compared to medically led care. Evidence from this study suggests that a specialist nurse is able to provide safe follow up for men undergoing radiotherapy. The intervention focused on coping with symptoms, and provided continuity of care and telephone support. Further work is required to improve the management of patients during and after radiotherapy.
Collapse
MESH Headings
- Adenocarcinoma/economics
- Adenocarcinoma/nursing
- Adenocarcinoma/psychology
- Adenocarcinoma/radiotherapy
- Adult
- Aged
- Aged, 80 and over
- Algorithms
- Carcinoma, Transitional Cell/economics
- Carcinoma, Transitional Cell/nursing
- Carcinoma, Transitional Cell/psychology
- Carcinoma, Transitional Cell/radiotherapy
- Cost-Benefit Analysis
- Drug Costs
- Follow-Up Studies
- Hospital Costs
- Humans
- Male
- Middle Aged
- Nursing Assessment
- Patient Compliance
- Patient Satisfaction
- Prostatic Neoplasms/economics
- Prostatic Neoplasms/nursing
- Prostatic Neoplasms/psychology
- Prostatic Neoplasms/radiotherapy
- Quality of Life
- Radiation Injuries/epidemiology
- Radiation Injuries/etiology
- Radiation Injuries/nursing
- Radiation Injuries/psychology
- Radiotherapy, Conformal/adverse effects
- Radiotherapy, Conformal/economics
- Radiotherapy, Conformal/nursing
- Radiotherapy, High-Energy/adverse effects
- Radiotherapy, High-Energy/economics
- Radiotherapy, High-Energy/nursing
- United Kingdom
- Urinary Bladder Neoplasms/economics
- Urinary Bladder Neoplasms/nursing
- Urinary Bladder Neoplasms/psychology
- Urinary Bladder Neoplasms/radiotherapy
Collapse
|
96
|
Faithfull S. Mapping the symptoms of pelvic radiotherapy: nursing assessment of risk and supportive care. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)82083-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
97
|
Faithfull S. Neuro-oncology for Nurses; Edited by Douglas Guerrero, Whur Publishers Ltd, £24.50. Int J Nurs Stud 2000. [DOI: 10.1016/s0020-7489(99)00042-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
98
|
Faithfull S. Randomized trial, a method of comparisons: a study of supportive care in radiotherapy nursing. Eur J Oncol Nurs 1999. [DOI: 10.1016/s1462-3889(99)80833-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
99
|
Mallett J, Mulholland J, Laverty D, Fuller F, Baxter A, Faithfull S, Fenlon D. An integrated approach to wound management. Int J Palliat Nurs 1999. [DOI: 10.12968/ijpn.1999.5.3.9913] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
100
|
Hutter J, Habler O, Kleen M, Tiede M, Podtschaske A, Kemming G, Corso C, Batra S, Keipert P, Faithfull S, Messmer K. Effect of acute normovolemic hemodilution on distribution of blood flow and tissue oxygenation in dog skeletal muscle. J Appl Physiol (1985) 1999; 86:860-6. [PMID: 10066697 DOI: 10.1152/jappl.1999.86.3.860] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Acute normovolemic hemodilution (ANH) is efficient in reducing allogenic blood transfusion needs during elective surgery. Tissue oxygenation is maintained by increased cardiac output and oxygen extraction and, presumably, a more homogeneous tissue perfusion. The aim of this study was to investigate blood flow distribution and oxygenation of skeletal muscle. ANH from hematocrit of 36 +/- 3 to 20 +/- 1% was performed in 22 splenectomized, anesthetized beagles (17 analyzed) ventilated with room air. Normovolemia was confirmed by measurement of blood volume. Distribution of perfusion within skeletal muscle was determined by using radioactive microspheres. Tissue oxygen partial pressure was assessed with a polarographic platinum surface electrode. Cardiac index (3.69 +/- 0.79 vs. 4.79 +/- 0.73 l. min-1. m-2) and muscle perfusion (4.07 +/- 0.44 vs. 5.18 +/- 0.36 ml. 100 g-1. min-1) were increased at hematocrit of 20%. Oxygen delivery to skeletal muscle was reduced to 74% of baseline values (0.64 +/- 0.06 vs. 0.48 +/- 0.03 ml O2. 100 g-1. min-1). Nevertheless, tissue PO2 was preserved (27.4 +/- 1.3 vs. 29.9 +/- 1. 4 Torr). Heterogeneity of muscle perfusion (relative dispersion) was reduced after ANH (20.0 +/- 2.2 vs. 13.9 +/- 1.5%). We conclude that a more homogeneous distribution of perfusion is one mechanism for the preservation of tissue oxygenation after moderate ANH, despite reduced oxygen delivery.
Collapse
|