Publications by authors named "Abubakr Bajwa"

Schwannomas are benign peripheral nerve sheath tumors typically found in the neck, flexor surfaces of the extremities, mediastinum, posterior spinal roots, cerebellopontine angle, and retroperitoneum. Pleural schwannomas are a type of neoplasm that arises from autonomic nerve fiber sheaths in the pleura and rarely originate in the thoracic cavity. These schwannomas tend to be asymptomatic, benign, and slow-growing neoplasms.

View Article and Find Full Text PDF

Introduction: The 16-week randomised, placebo-controlled INCREASE trial (RCT) met its primary end-point by improving 6-min walk distance (6MWD) in patients receiving inhaled treprostinil for pulmonary hypertension due to interstitial lung disease (PH-ILD). The open-label extension (OLE) evaluated long-term effects of inhaled treprostinil in PH-ILD.

Methods: Of 258 eligible patients, 242 enrolled in the INCREASE OLE and received inhaled treprostinil.

View Article and Find Full Text PDF

Inhaled treprostinil is an approved therapy for pulmonary arterial hypertension (PAH) and pulmonary hypertension associated with interstitial lung disease in the United States. Studies have confirmed the robust benefits and safety of nebulized inhaled treprostinil, but it requires a time investment for nebulizer preparation, maintenance, and treatment. A small, portable treprostinil dry powder inhaler has been developed for the treatment of PAH.

View Article and Find Full Text PDF

Background: No therapies are currently approved for the treatment of pulmonary hypertension in patients with interstitial lung disease. The safety and efficacy of inhaled treprostinil for patients with this condition are unclear.

Methods: We enrolled patients with interstitial lung disease and pulmonary hypertension (documented by right heart catheterization) in a multicenter, randomized, double-blind, placebo-controlled, 16-week trial.

View Article and Find Full Text PDF

Deep venous thrombosis (DVT) is common in intensive care unit (ICU) patients. It is often silent and may be complicated by pulmonary embolism and death. Thromboprophylaxis with heparin does not always prevent venous thromboembolism (VTE).

View Article and Find Full Text PDF

The primary aim was to explore the safety and tolerability of inhaled treprostinil when used in patients with pulmonary hypertension (PH) with concomitant chronic obstructive pulmonary disease (COPD). Patients with a diagnosis of pre-capillary PH (defined as pulmonary artery mean pressure of ≥ 25 mmHg and pulmonary artery wedge pressure or left ventricular end diastolic pressure of ≤ 15 mmHg) who were being initiated on inhaled treprostinil and had concomitant COPD (defined as FEV1/FVC ratio ≤ 70% with FEV1 ≥ 40% predicted) were considered for inclusion in this pilot study. Assessments included adverse events, physical exam, World Health Organization (WHO) functional class, 6-minute walk test (6MWT), modified Borg dyspnea score, and concomitant medication.

View Article and Find Full Text PDF

Background: Transthoracic echocardiography (TTE) and computerized axial tomography (CT) are complementary imaging techniques. It is possible that a combination of the two may offer a better way of identifying pulmonary hypertension (PH) than either one alone.

Objectives: To determine the diagnostic accuracy of TTE combined with chest CT in pulmonary hypertension.

View Article and Find Full Text PDF

Bacteremia is currently one of the infections with the highest mortality in hospitals [1]. Acinetobacter lwoffii and Acinetobacter baumannii are gram-negative bacteria and both represent opportunistic pathogens. In certain cases, the management can be challenging since these organisms can be highly resistant to antimicrobial agents.

View Article and Find Full Text PDF

Purpose: Proton therapy has been shown to reduce radiation dose to organs at risk (OAR) and could be used to safely escalate the radiation dose. We analyzed outcomes in a group of phase 2 study patients treated with dose-escalated proton therapy with concurrent chemotherapy for stage 3 non-small cell lung cancer (NSCLC).

Methods And Materials: From 2009 through 2013, LU02, a phase 2 trial of proton therapy delivering 74 to 80 Gy at 2 Gy/fraction with concurrent chemotherapy for stage 3 NSCLC, was opened to accrual at our institution.

View Article and Find Full Text PDF

Background: Non-invasive Positive Pressure Ventilation (NIPPV) is employed for the management of acute respiratory failure and studies have shown that it can prevent the need for endotracheal intubation, mechanical ventilation and associated complications. Given limited studies evaluating the factors, other than those related patient or underlying disease severity, that may lead to NIPPV failure, we performed this study to gain insight into current practices in terms of utilization of NIPPV and operator dependent factors that may possibly contribute to failure of NIPPV.

Method: After institutional board review approval a retrospective chart review was performed of consecutive patients who were initiated on and failed NIPPV between January 2009 and December 2009.

View Article and Find Full Text PDF

Pulmonary arterial hypertension (PAH) is characterized by elevated pulmonary artery (PA) pressure, which negatively affects the right ventricular (RV) function. This report shows a patient with severe PAH, on whom a comprehensive MRI exam was performed to evaluate both PA and RV. New imaging sequences were implemented for obtaining additional parameters about the patient's condition.

View Article and Find Full Text PDF

Pulmonary arterial hypertension (PAH) is characterized by elevated pulmonary artery pressure (PAP), altered pulmonary artery (PA) hemodynamics, and vessel wall characteristics that affect the right ventricular (RV) function. Magnetic resonance imaging (MRI) has recently been considered in PAH and has shown promising results for estimating PAP, measuring PA hemodynamic parameters, assessing PA vessel wall stiffness, and evaluating RV global and regional functions. In this article, we review various MRI techniques and image analysis methods for evaluating PAH, with an emphasis on the resulting images and how they are interpreted for both qualitatively and quantitatively assessing the PA and RV conditions.

View Article and Find Full Text PDF

Background. We hypothesized that positive end-exploratory pressure (PEEP) may promote venous stasis in the upper extremities and predispose to upper extremity deep vein thrombosis (UEDVT). Methods.

View Article and Find Full Text PDF

Background: Previous studies suggest a relationship between chloride-rich intravenous fluids and acute kidney injury in critically ill patients.

Objectives: The aim of this study was to evaluate the relationship of intravenous fluid chloride content to kidney function in patients with severe sepsis or septic shock.

Methods: A retrospective chart review was performed to determine (1) quantity and type of bolus intravenous fluids, (2) serum creatinine (Cr) at presentation and upon discharge, and (3) need for emergent hemodialysis (HD) or renal replacement therapy (RRT).

View Article and Find Full Text PDF

Background: Combination therapy is commonly used for pulmonary arterial hypertension (PAH) treatment. We aimed to identify factors that may predict the need for future combination therapy.

Methods: We conducted a retrospective chart review of consecutive patients with PAH in an aim to describe baseline clinical, echocardiogram, and hemodynamic characteristics of patients who eventually required combination therapy during the course of their disease and compared them to the ones who were maintained on monotherapy.

View Article and Find Full Text PDF

Background: The finding of a filling defect in a pulmonary artery (PA) sometimes raises the possibility of cancer. Endobronchial ultrasound (EBUS)-guided transbronchial needle aspiration (TBNA) may confirm the underlying nature of the endovascular lesion. However, little is known about the use of this procedure for this purpose.

View Article and Find Full Text PDF

Objectives: The development of pulmonary hypertension (PH) in non-World Health Organization group I PH adversely affects exercise capacity. It is unclear whether pulmonary artery hypertension (PAH)-specific drugs improve pulmonary hemodynamics and exercise capacity in such patients.

Methods: We performed a retrospective chart review of consecutive patients with non-World Health Organization group I PH treated with PAH-specific therapy.

View Article and Find Full Text PDF

Background: Little is known about the effect of pulmonary arterial hypertension (PAH) specific therapy on pulmonary hemodynamics and exercise capacity in patients with portopulmonary hypertension (PoPH) because such patients are usually excluded from randomized clinical trials (RCT) of such therapy.

Methods: We searched PUBMED using the terms "(Therapy/Broad (filter)) AND (portopulmonary hypertension)." We included studies that met the following criteria: ≥5 patients, AND PoPH confirmed by right heart catheterization (RHC), AND follow-up RHC data, AND/OR baseline and follow-up 6MWD available.

View Article and Find Full Text PDF

Pulmonary hypertension (PH) in overweight or obese patients with obstructive sleep apnea (OSA) may be multifactorial. The effect of pulmonary artery hypertension (PAH)-specific drugs on PH and exercise capacity in such patients is unknown. We performed a retrospective review of overweight or obese patients with OSA and PH who were treated with PAH-specific therapy in our PH clinic.

View Article and Find Full Text PDF

Inflammatory pseudotumors are rare solid, non-neoplastic masses that can mimic pulmonary malignancy. It occurs most commonly in children and young adults and is usually found incidentally. There are many reports of the existence of this tumor in various organs in the human body.

View Article and Find Full Text PDF

Background: Pleuroscopy is considered a safe procedure with a high diagnostic accuracy but this record is based on studies published by pulmonologists experienced in performing the procedure.

Methods: Review of 40 consecutive patients who underwent semirigid pleuroscopy by a pulmonary fellow under the supervision of a pulmonologist.

Results: Pleuroscopy was performed for diagnosis of pleural effusion (n=33), or treatment of pleural effusion (n=4) or pneumothorax (n=3).

View Article and Find Full Text PDF

Idiopathic pulmonary fibrosis (IPF) is a chronic interstitial pneumonia with a median survival of 3 years after diagnosis. Acute exacerbation of IPF (AE-IPF) is now identified as a life-threatening complication. It presents as worsening dyspnea with new ground glass opacities superimposed upon a radiographic usual interstitial pneumonia (UIP) pattern.

View Article and Find Full Text PDF

Hepatic hydrothorax (HH) is an example of a porous diaphragm syndrome. Portal hypertension results in the formation of ascitic fluid which moves across defects in the diaphragm and accumulates in the pleural space. Consequently, the treatment approach to HH consists of measures to reduce the formation of ascitic fluid, prevent the movement of ascitic fluid across the diaphragm, and drain or obliterate the pleural space.

View Article and Find Full Text PDF

To date there is only one single-center study that has exclusively reported characteristics, location, and outcomes of spontaneous intracerebral hemorrhages (ICH) among cocaine users. We aimed to describe the radiological location and characteristics along with clinical outcomes of spontaneous ICH in a similar population. We conducted a retrospective chart review of consecutive patients admitted to a tertiary care hospital, with a spontaneous ICH, who had a urine drug screen performed within 48 hours of admission.

View Article and Find Full Text PDF