1
|
Kemp M, Turnbull H, Ashworth P. Multiple repeat caesarean section in the UK: incidence and consequences to mother and child. BJOG 2013; 120:771-2. [PMID: 23565950 DOI: 10.1111/1471-0528.12156] [Citation(s) in RCA: 1] [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] [Accepted: 11/22/2012] [Indexed: 11/29/2022]
|
2
|
Ashworth P, Mercer L, Patil S, Trinidade A, Philpott C. Epistaxis Secondary to an Oncocytoma of the Anterior Skull Base. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1313946] [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: 10/28/2022]
|
3
|
Patil S, Trinidade A, Mercer L, Ashworth P, Lonsdale R, Philpott C. Skull base oncocytoma presenting as epistaxis: an unusual presentation of a rare tumour successfully managed with active surveillance. BMJ Case Rep 2012; 2012:bcr.10.2011.5040. [PMID: 22665400 DOI: 10.1136/bcr.10.2011.5040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Oncocytomas are rare tumours, usually occurring in the salivary glands, but may very occasionally occur in other sites. The authors present a skull base oncocytoma as a rare cause of spontaneous epistaxis. Following diagnosis through imaging and intranasal biopsy, the patient opted for annual surveillance instead of active treatment and made a full recovery nonetheless. Skull base oncocytoma is a rare tumour that may result in otherwise common symptomatology. While excision is the mainstay of management, active surveillance may be a viable alternative for select patients.
Collapse
Affiliation(s)
- Sachin Patil
- ENT Department, James Paget Hospital, Great Yarmouth, UK
| | | | | | | | | | | |
Collapse
|
4
|
Ashworth P, El Fara A, Ebaji S. Level of birth care and operative delivery rates. BJOG 2012; 119:377; author reply 377-8. [PMID: 22239420 DOI: 10.1111/j.1471-0528.2011.03208.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
5
|
Affiliation(s)
- Paul Ashworth
- a Department of Chemistry , University of York , Heslington , York , YO1 5DD , England
| |
Collapse
|
6
|
Clark JN, Ogle MF, Ashworth P, Bianco RW, Levy RJ. Prevention of Calcification of Bioprosthetic Heart Valve Cusp and Aortic Wall With Ethanol and Aluminum Chloride. Ann Thorac Surg 2005; 79:897-904. [PMID: 15734402 DOI: 10.1016/j.athoracsur.2004.08.084] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/30/2004] [Indexed: 11/24/2022]
Abstract
BACKGROUND Calcification is frequently associated with device failure of bioprostheses fabricated from either glutaraldehyde pretreated porcine aortic valves or bovine pericardium. It was hypothesized that differential pretreatment with ethanol-aluminum chloride will prove safe and efficacious for inhibiting the calcification of both the porcine aortic valve bioprosthetic cusp and the aortic wall. METHODS Glutaraldehyde-fixed porcine aortic valves were subjected to differential aluminum chloride (AlCl3) and ethanol pretreatment; aortic wall segments were treated exclusively with AlCl3 (0.1 moles/L) for 45 minutes, 6 hours, or 8 hours (groups 3A, B, and C, respectively), followed by valve cusp incubations in ethanol (80%, pH 7.4). Nontreated control bioprosthetic valves were either stent-mounted porcine aortic valve bioprostheses (Carpentier-Edwards, group 1) (Edwards, Santa Anna, CA) or St. Jude Toronto SPV valves (St. Jude Medical, St. Paul, MN) (group 2). Mitral valve replacements were carried out in juvenile sheep for 150 days. RESULTS Calcium in cusps from group 3A was 2.84 +/- 0.62 mg calcium/g tissue versus control, 22.79 +/- 8.46 mg calcium/g tissue, p = 0.04. Valves pretreated with AlCl3 for 45 minutes, 6 hours, and 8 hours had significantly lower levels of calcium in the aortic wall compared to controls (40.38 +/- 5.66, 26.77 +/- 4.02, and 28.94 +/- 8.25 mg calcium/g tissue for groups 3A, 3B, and 3C, respectively, vs 95.47 +/- 17.14 mg calcium/g tissue for group 1, p < 0.001, and 133.42 +/- 3.96 mg calcium/g tissue for group 2, p < 0.001). CONCLUSIONS Differentially applied ethanol and aluminum chloride pretreatment significantly inhibited calcification of both the glutaraldehyde-fixed porcine aortic valve bioprosthetic cusp and the aortic wall.
Collapse
Affiliation(s)
- Jocelyn N Clark
- Division of Cardiology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania 19104-4318, USA
| | | | | | | | | |
Collapse
|
7
|
Levy RJ, Vyavahare N, Ogle M, Ashworth P, Bianco R, Schoen FJ. Inhibition of cusp and aortic wall calcification in ethanol- and aluminum-treated bioprosthetic heart valves in sheep: background, mechanisms, and synergism. J Heart Valve Dis 2003; 12:209-16; discussion 216. [PMID: 12701794] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
BACKGROUND AND AIM OF THE STUDY Calcification of bioprosthetic heart valves fabricated from glutaraldehyde (GA)-pretreated heterograft tissue is frequently responsible for the clinical failure of these devices. Stentless bioprostheses fabricated from GA-fixed porcine aortic valves pose an important challenge in this regard, as pathologic calcification can affect not only the bioprosthetic cusps, but also the aortic wall segment. METHODS A synergistic approach was used to prevent bioprosthetic cusp and aortic wall calcification. Ethanol pretreatment of bioprosthetic heart valves was shown to inhibit cuspal calcification due to multiple mechanisms, including alterations of collagen structure and lipid extraction. AlCl3 pretreatment of bioprostheses to prevent calcification was also investigated; this alters elastin structure, inhibits alkaline phosphatase, and complexes with phosphoesters, thereby inhibiting aortic wall mineralization. RESULTS Experimental data from rat subdermal implants and sheep mitral replacements showed successful synergism with co-pretreatment of porcine aortic valve bioprostheses with ethanol and AlCl3. Significant inhibition of both cusp and aortic wall calcification was achieved by differential pretreatments that restrict AlCl3 to only the aortic wall, and not the cusp, accompanied by ethanol cuspal exposure. Sequential exposure of bioprostheses, first to AlCl3 and then to ethanol, led to unexpectedly severe cuspal calcification. CONCLUSION Differential pretreatment of stentless bioprostheses with ethanol and AlCl3 can effectively inhibit both cuspal and aortic wall calcification.
Collapse
Affiliation(s)
- Robert J Levy
- Children's Hospital of Philadelphia, Abramson Pediatric Research Center, Philadelphia, PA 19104, USA
| | | | | | | | | | | |
Collapse
|
8
|
Ashworth P. Electron spin resonance studies of structure and conformation in anion radicals formed during the autoxidation of hydroxylated coumarins. J Org Chem 2002. [DOI: 10.1021/jo00879a027] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
9
|
Ashworth P. Critical care nursing and nurses. Intensive Crit Care Nurs 2000; 16:335-6. [PMID: 11091464 DOI: 10.1054/iccn.2000.1551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
10
|
Ashworth P. Modification and modernization of professional regulation. Intensive Crit Care Nurs 2000; 16:271-2. [PMID: 11871651 DOI: 10.1054/iccn.2000.1528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
11
|
Ashworth P. Reports and declarations are useful, but not self-executive. Intensive Crit Care Nurs 2000; 16:205-6. [PMID: 10922184 DOI: 10.1054/iccn.2000.1521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
12
|
|
13
|
|
14
|
|
15
|
Ashworth P. Crossing the boundary to the third millennium AD. Intensive Crit Care Nurs 1999; 15:307-8. [PMID: 11868578 DOI: 10.1016/s0964-3397(99)80017-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
16
|
|
17
|
|
18
|
|
19
|
Roe M, Folkes A, Ashworth P, Brumwell J, Chima L, Hunjan S, Pretswell I, Dangerfield W, Ryder H, Charlton P. Reversal of P-glycoprotein mediated multidrug resistance by novel anthranilamide derivatives. Bioorg Med Chem Lett 1999; 9:595-600. [PMID: 10098671 DOI: 10.1016/s0960-894x(99)00030-x] [Citation(s) in RCA: 123] [Impact Index Per Article: 4.9] [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: 11/24/2022]
Abstract
We have synthesised and evaluated a series of anthranilamide based modulators of P-glycoprotein. These studies have identified XR9576(2), a potent inhibitor of P-glycoprotein in vitro and in vivo. The general synthesis and the SAR of these compounds are described.
Collapse
Affiliation(s)
- M Roe
- Xenova Ltd., Slough, England
| | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Ashworth P. Consulting on critical care--mental as well as physical. Intensive Crit Care Nurs 1998; 14:261. [PMID: 10196907 DOI: 10.1016/s0964-3397(98)80685-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
Ashworth P. Now--the history of the future. Intensive Crit Care Nurs 1998; 14:217-8. [PMID: 9849233 DOI: 10.1016/s0964-3397(98)80604-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
22
|
Ashworth P. Clinical effectiveness: an old ideal but with a newer context and approach in nursing. Intensive Crit Care Nurs 1998; 14:159-60. [PMID: 9849241 DOI: 10.1016/s0964-3397(98)80460-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
23
|
Ashworth P. Advance thinking about advance directives. Intensive Crit Care Nurs 1998; 14:57-8. [PMID: 9814207 DOI: 10.1016/s0964-3397(98)80170-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
|
25
|
Ashworth P. History in nursing--Lady McFarlane. Christ Nurse Int 1998; 13:22. [PMID: 9418392] [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: 02/05/2023]
|
26
|
Ashworth P. Justice as an ethic in nursing. Christ Nurse Int 1997; 12:6-8. [PMID: 9355296] [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: 02/05/2023]
|
27
|
Ashworth P. Professional progress and potential pitfalls. Intensive Crit Care Nurs 1997; 13:241-2. [PMID: 9538709 DOI: 10.1016/s0964-3397(97)80357-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
28
|
Ashworth P. Sharing the health challenge in critical times. Intensive Crit Care Nurs 1997; 13:179-80. [PMID: 9355421 DOI: 10.1016/s0964-3397(97)80001-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
29
|
Ashworth P. Controlling and using the power of the information explosion. Intensive Crit Care Nurs 1997; 13:63-4. [PMID: 9180490 DOI: 10.1016/s0964-3397(97)80101-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
30
|
Ashworth P. Critical care competencies. Intensive Crit Care Nurs 1997; 13:1. [PMID: 9095875 DOI: 10.1016/s0964-3397(97)80628-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
31
|
Ashworth P. Long-term conditions in the context of critical care nursing. Intensive Crit Care Nurs 1996; 12:253. [PMID: 8938077 DOI: 10.1016/s0964-3397(96)80657-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
32
|
Ashworth P. Could department of health policy help to control methicillin-resistant Staphylococcus aureus? Intensive Crit Care Nurs 1996; 12:125. [PMID: 8717811 DOI: 10.1016/s0964-3397(96)80401-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
33
|
Ashworth P. Recognition, respect and support: 'stability zones' in change. Intensive Crit Care Nurs 1996; 12:63. [PMID: 8845625 DOI: 10.1016/s0964-3397(96)80946-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
34
|
|
35
|
|
36
|
Ashworth P. Learning together as well as separately. Intensive Crit Care Nurs 1995; 11:243. [PMID: 7492881 DOI: 10.1016/s0964-3397(95)81653-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
37
|
Ashworth P. Concomitants of organisational changes: what is the evidence? Intensive Crit Care Nurs 1995; 11:181-2. [PMID: 7670284 DOI: 10.1016/s0964-3397(95)80001-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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]
|
38
|
Ashworth P. From the past to the future. Intensive Crit Care Nurs 1995; 11:121-2. [PMID: 7620253 DOI: 10.1016/s0964-3397(95)80579-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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]
|
39
|
Ashworth P. Standards of care. Intensive Crit Care Nurs 1995; 11:1. [PMID: 7711392 DOI: 10.1016/s0964-3397(95)81105-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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]
|
40
|
Ashworth P. Strengthening the global network. Intensive Crit Care Nurs 1994; 10:243. [PMID: 7833628 DOI: 10.1016/0964-3397(94)90031-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
41
|
|
42
|
|
43
|
Ashworth P. Communicating to care. Intensive Crit Care Nurs 1993; 9:215-6. [PMID: 8274829 DOI: 10.1016/s0964-3397(05)80001-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
44
|
Ashworth P. Musings from Madrid. Intensive Crit Care Nurs 1993; 9:145. [PMID: 8104562 DOI: 10.1016/0964-3397(93)90018-s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
45
|
Ashworth P. Shaping nursing--are you involved? Intensive Crit Care Nurs 1993; 9:73-4. [PMID: 8329844 DOI: 10.1016/0964-3397(93)90046-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
46
|
|
47
|
|
48
|
Ashworth P. Too much theory for practice? Intensive Crit Care Nurs 1992; 8:65. [PMID: 1611287 DOI: 10.1016/0964-3397(92)90032-f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
49
|
|
50
|
Ashworth P. Consultation in nursing: combining different kinds of expertise. Intensive Care Nurs 1991; 7:133-4. [PMID: 1918900 DOI: 10.1016/0266-612x(91)90001-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|