Peristaltic Transport of Prandtl-Eyring Liquid in a Convectively Heated Curved Channel.

Here peristaltic activity for flow of a Prandtl-Eyring material is modeled and analyzed for curved geometry. Heat transfer analysis is studied using more generalized convective conditions. The channel walls satisfy complaint walls properties.

Carcinoma in situ in a 7 mm gallbladder polyp: Time to change current practice?

Detection of polypoid lesions of the gallbladder is increasing in conjunction with better imaging modalities. Accepted management of these lesions depends on their size and symptomatology. Polyps that are symptomatic and/or greater than 10 mm are generally removed, while smaller, asymptomatic polyps simply monitored.

Single-Site Robotic Cholecystectomy: The Timeline of Progress.

Aim: To investigate the learning curve and perioperative outcomes of single-site robotic cholecystectomy during the first 102 cases by a single surgeon.

Materials And Methods: A retrospective review of a prospectively maintained database was performed on the first 102 cases of single-site robotic cholecystectomy. Patients were divided into five chronological groups based on the date of surgery, with 20 patients in each group except the 5th group which had 22 patients.

Realistic Survival Outcomes After Vasopressor Use in the Intensive Care Unit.

Aim: Patients in the intensive care unit (ICU) have significantly increased mortality rates. Frequently, clinicians are called upon to help families make decisions regarding aggressiveness of care. Having a realistic expectation of outcome is critical for these discussions.

Patient perception of ideal body weight and the effect of body mass index.

Objective: Despite much effort, obesity remains a significant public health problem. One of the main contributing factors is patients' perception of their target ideal body weight. This study aimed to assess this perception.

Sealing of vessels larger than 7 millimeters using Enseal in porcine aorta.

Background: The Enseal (Ethicon Endo-Surgery, Blue Ash, Ohio) tissue-sealing device has proven efficacy for ligation of vessels<7 mm in diameter, even with significant supraphysiologic bursting pressures. We aimed to evaluate the safety of Enseal in porcine vessels>7 mm.

Materials And Methods: The lumbar aortas of pigs that were euthanized for unrelated procedures were harvested.

A prospective study of in vivo and ex vivo sealing of the human inferior mesenteric artery using an electrothermal bipolar vessel-sealing device.

Background: Mesenteric vascular ligation is a critical step in minimally invasive colorectal surgery. This study assessed the quality of in vivo and ex vivo sealing of the human inferior mesenteric artery (IMA), as well as the relation of IMA stump and bursting pressure.

Patients And Methods: This was a prospective experimental study in a tertiary-care teaching hospital.

Acute mesenteric, portal and inferior vena cava (IVC) venous thrombosis: optimal outcome achieved with anticoagulation.

The prevalence and clinical spectrum of acute mesenteric venous thrombosis (AMVT) in Pakistan is largely unknown. The authors report two patients with acute mesenteric, portal and inferior vena cava venous thrombosis confirmed on CT imaging. The diagnoses were established within 24 hours of presentation and both patients were successfully treated with therapeutic heparin during hospital admission and continued on oral warfarin because of hypercoagulable state.

Hepatic vein and inferior vena caval thrombus extending into the right atrium: a rare complication of amoebic liver abscess.

Amoebic liver abscess is an endemic in developing countries but few cases of associated vascular complications have been reported. The authors report a very rare vascular complication of hepatic veins and inferior vena caval (IVC) thrombosis extending into the right atrium in a young male with large amoebic liver abscess. Optimal result was achieved with early diagnosis on CT scan, percutaneous drainage of abscess, intravenous metronidazole, peri-operative anticoagulation, sternotomy and thrombectomy.

Non-traumatic right hepatic artery pseudoaneurysm: an unusual cause of hemobilia and obstructive jaundice.

Most hepatic artery pseudoaneurysms (HAPA) are post traumatic, and non-traumatic pseudoaneurysm is rarely reported. It is a potentially life threatening vascular disorder and difficult to diagnose before rupture. Early diagnosis and prompt nonoperative intervention of this lesion could be life saving.

Amoebic liver abscess: experience in a south Asian country.

Amoebic liver abscess (ALA) is endemic in south Asian countries. The current study was undertaken in order to evaluate the clinical spectrum, management and outcome of ALA at an urban tertiary care hospital in Pakistan. The chart notes of 232 ALA patients admitted from 1 January 2000 to 31 August 2007 were retrospectively reviewed.

Ileosigmoid knotting- a rare variant of bowel volvulus.

Two patients with acute intestinal obstruction underwent exploratory laparotomy after adequate fluid resuscitation and radiological imaging. A preoperative diagnosis of sigmoid volvulus and an operative diagnosis of ileosigmoid knotting or compound volvulus were established.

Acute mesenteric venous thrombosis: improved outcome with early diagnosis and prompt anticoagulation therapy.

Aim: To analyze the clinical spectrum of acute mesenteric venous thrombosis (AMVT), to assess the factors affecting the outcome and to determine the optimal management of this disease.

Methods: We retrospectively reviewed the case records of 20 patients with acute mesenteric venous thrombosis confirmed on CT imaging or on laparotomy over a 23 year period. Patients were divided into two groups according to the duration of symptoms: group I with symptoms for up to 3 days duration and group II with symptoms for more than 3 days.