Publications by authors named "William Loan"

A delayed secondary open conversion (SOC) after endovascular aneurysm repair may be necessary due to a failing graft. Many surgical techniques can be performed, and one such approach is partial explantation of the graft with resuturing of a new graft to the retained components of the endograft. No guidelines exist with regards to the follow-up of retained endovascular components after a delayed SOC.

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It is established that cardiac resynchronisation therapy (CRT) reduces mortality and hospitalisation and improves functional class in patients with NYHA class 3-4 heart failure, an ejection fraction of ≤ 35% and a QRS duration of ≥ 120ms. Recent updates in the American guidelines have expanded the demographic of patients in whom CRT may be appropriate. Here we present two cases of complex CRT; one with a conventional indication but occluded central veins and the second with a novel indication for CRT post cardiac transplant.

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Superior mesenteric artery (SMA) aneurysms are rare but associated with significant mortality (25-40%) when complicated by rupture or thrombosis. Symptomatic SMA aneurysms, asymptomatic aneurysms of ≥2 cm size and pseudoaneurysms need intervention. We report a case of a 6.

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Introduction: Reported mortality rates for endovascular repair (EVR) of ruptured abdominal aortic aneurysm (rAAA) vary from 0% to 50%. Selection bias, inaccurate reporting, and lack of uniform reporting standards are responsible for this significant discrepancy.

Material And Methods: Existing literature about the classification/reporting systems of rAAA is reviewed.

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Background: Angiographic assessment is an alternative to computerised tomography (CT) prior to endovascular aneurysm repair (EVAR). We evaluated angiography in aortic neck morphology assessment as an alternative investigation.

Methods: Patients admitted for elective or emergency EVAR were assessed by pre-operative CT and intra-operative angiography.

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Background: Spillage of bile and gallstones due to accidental perforation of the gallbladder wall is often encountered during laparoscopic cholecystectomy. Although spilled stones were once considered harmless, there is increasing evidence that they can result in septic or other potential complications.

Case Report: We report a case of spilled gallstones mimicking peritoneal metastases on radiological investigations; diagnosis was confirmed by diagnostic laparoscopy.

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Objective: This study assessed if emergency endovascular repair (eEVR) reduces the increase in intra-abdominal compartment pressure and host inflammatory response in patients with ruptured abdominal aortic aneurysm (AAA).

Methods: Thirty patients with ruptured AAA were prospectively recruited. Patients were offered eEVR or emergency conventional open repair (eOR) depending on anatomic suitability.

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Background: Many devices are available for endovascular aneurysm repair (EVAR). Our aim was to analyze morphological effects of the Zenith and Talent systems.

Methods: Patients included underwent EVAR from June 1999 to June 2005 using a Zenith or Talent stent-graft, with computed tomography follow-up.

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Purpose: To correlate the Hardman prognostic index with perioperative mortality in patients undergoing open and endovascular repair of ruptured abdominal aortic aneurysm (rAAA).

Methods: Over a 5-year period, 126 patients (109 men; mean age 74 years, range 51-91) underwent open (n=74) or endovascular (n=52) repair of rAAA in a single unit. Five Hardman factors (age>76 years, history of loss of consciousness, ECG evidence of ischemia, hemoglobin<9.

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Objective: The use of endovascular aneurysm repair (EVAR) for ruptured abdominal aortic aneurysm (AAA) has been restricted to a small number of specialized units on a selected group of patients. The aim of this study is to assess if the overall mortality in these patients with ruptured AAA may be reduced in a unit where all patients with ruptured AAA are considered first for EVAR.

Methods: During a 24-month period beginning in July 2002, 51 patients admitted with ruptured AAA were considered for EVAR as the treatment of choice and comprised the study group.

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Background: Endovascular repair of abdominal aortic aneurysm (AAA) is increasingly used. We evaluated if a difference exists in the rate of change of the aortic neck diameter between non-ruptured and ruptured AAAs after endovascular aneurysm repair (EVAR).

Methods: Details of patients undergoing elective (group I) and emergency (group II) EVAR using Talent stents between October 1999 and September 2005 were reviewed.

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The term varicocele describes a dilated, tortuous and elongated pampiniform plexus of veins, which is well known in relation to the spermatic cord. Recently varicocele has also been observed inside the testis, and this new entity is known as intra-testicular varicocele. We present a case of intra-testicular varicocele presenting as acute scrotum and discuss the management issues.

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Purpose: To compare the changes in aneurysm size following endovascular aneurysm repair (EVAR) for ruptured versus elective abdominal aortic aneurysms (AAA).

Methods: Aneurysm sac diameter was measured from computed tomographic (CT) scans in 14 hemodynamically stable patients (14 men; mean age 74+/-7 years, range 60 to 83) prior to emergent stent-graft repair for ruptured AAA. The aneurysm diameter change was followed postprocedurally with serial CT and the outcomes compared to 74 AAA patients (58 men; mean age 74+/-7 years, range 56 to 87) having elective EVAR in the same time period.

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