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Woo JH, Ngo HV, Nguyen HD, Gil MC, Park C, Park JB, Cui JH, Cao QR, Lee BJ. Polyelectrolyte-based solid dispersions for enhanced dissolution and pH-Independent controlled release of sildenafil citrate. Heliyon 2023; 9:e23091. [PMID: 38144296 PMCID: PMC10746450 DOI: 10.1016/j.heliyon.2023.e23091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 12/26/2023] Open
Abstract
The aim of this study was to design a novel matrix tablet with enhanced dissolution and pH-independent controlled release of sildenafil citrate (SIL), a drug with pH-dependent solubility, by using solid dispersions (SDs) and polyelectrostatic interactions. SIL-loaded SDs were prepared using various polymeric carriers such as poloxamer 188, poloxamer 407, Soluplus®, polyvinylpyrrolidone (PVP) K 12, and PVP K 17 by the solvent evaporation method. Among these polymers, Soluplus® was found to be the most effective in SDs for enhancing the drug dissolution over 6 h in pH 6.8 intestinal fluid. SIL was well dispersed in Soluplus®-based SDs in an amorphous form. When the Soluplus®-based SDs were added in the tablet containing positively charged chitosan and negatively charged Eudragit® L100, the drug release rate was further modulated in a controlled manner. The charge density of the tablet was higher at pH 6.8 than at pH 1.2 due to the polyelectrostatic interaction between chitosan and Eudragit® L100. This interaction could provide a pH-independent controlled release of SIL. Our study demonstrates that a combinatory approach of Soluplus®-based SDs and polyelectrostatic interactions can improve the dissolution and pH-independent release performance of SIL. This approach could be a promising pharmaceutical strategy to design a matrix tablet of poorly water-soluble drugs for the enhanced bioavailability.
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Affiliation(s)
- Ju-Hyeong Woo
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Hai V. Ngo
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Hy D. Nguyen
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Myung-Chul Gil
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
| | - Chulhun Park
- College of Pharmacy, Jeju National University, Jeju 63243, Republic of Korea
| | - Jun-Bom Park
- College of Pharmacy, Sahmyook University, Seoul 01795, Republic of Korea
| | - Jing-Hao Cui
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Qing-Ri Cao
- College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon 16499, Republic of Korea
- Institute of Pharmaceutical Science and Technology, Ajou University, Suwon 16499, Republic of Korea
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2
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Zhu Y, Jiang Q, Zhang W, Hu R, Dong W, Zhang H, Zhang H. Outcomes and occurrence of post-operative pulmonary hypertension crisis after late referral truncus arteriosus repair. Front Cardiovasc Med 2022; 9:999032. [PMID: 36237902 PMCID: PMC9551104 DOI: 10.3389/fcvm.2022.999032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/05/2022] [Indexed: 12/02/2022] Open
Abstract
Background Truncus arteriosus (TA) is a rare congenital heart disease with a high rate of early mortality. The occurrence of post-operative pulmonary hypertension crisis (PHC), known to be a common and life-threatening complication, increases due to the irreversible development of pulmonary vascular resistance with age. We sought to figure out the risk factors for PHC and describe the surgical outcomes of TA patients with late referral (repair <1 month excluded). Materials and methods We retrospectively reviewed patients after TA repair between 2009 and 2021 at Shanghai Children’s Medical Center. The occurrence of PHC was defined according to post-operative Pp/Ps ≥ 1 and clinical manifestations. Risk factors for PHC and mortality were conducted by multivariable analysis. Results A total of 98 patients were treated, including 55 males and 43 females. The median age at repair was 121 (69, 245) days. Post-operative PHC occurred in 22 (22.4%) patients with a median age of 186 (122, 293) days. By multivariable analysis, patients with the sum of Z-score of pre-operative bilateral pulmonary artery (PA) diameters (OR: 1.6, 95% CI: 1.2–2.3, P = 0.01) was more likely to experience PHC. Longer CPB duration contributed to early death (OR: 1.0, 95% CI: 1.0–1.0, P = 0.01). Total survival at 10 years was 81.4%. In 4.5 (2.9, 7.5) years of follow-up, twenty-six patients received 30 reinterventions. Valved reconstruction of RVOT most predicted reinterventions (OR: 4.2, 95% CI: 1.4–13.0, P = 0.01). Conclusion Surgical repair of TA patients with late referral has resulted in comparatively favorable early and mid-term outcomes. PHC occurred more commonly in patients with overextended bilateral PA pre-operatively. Meanwhile, valved reconstruction of RVOT would more likely lead to early reintervention.
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Affiliation(s)
- Yifan Zhu
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Jiang
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen Zhang
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Renjie Hu
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Dong
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Zhang
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Hao Zhang,
| | - Haibo Zhang
- Department of Cardiothoracic Surgery, Shanghai Children’s Medical Center, Shanghai, China
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Haibo Zhang,
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Hysinger EB, Higano NS, Critser PJ, Woods JC. Imaging in neonatal respiratory disease. Paediatr Respir Rev 2022; 43:44-52. [PMID: 35074281 PMCID: PMC10439744 DOI: 10.1016/j.prrv.2021.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/17/2021] [Indexed: 12/15/2022]
Abstract
The purpose of this review is to describe the current state of the art in clinical imaging for NICU patients, divided into major areas that correspond to likely phenotypes of neonatal respiratory disease: airway abnormalities, parenchymal disease, and pulmonary vascular disease. All common imaging modalities (ultrasound, X-ray, CT, and MRI) are discussed, with an emphasis on modalities that are most relevant to the individual underlying aspects of disease. Some promising aspects of dynamic and functional imaging are included, where there may be future clinical applicability.
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Affiliation(s)
- E B Hysinger
- Cincinnati Children's Hospital Medical Center, 3333 Burnett Ave, Cincinnati, OH 45229, United States.
| | - N S Higano
- Cincinnati Children's Hospital Medical Center, 3333 Burnett Ave, Cincinnati, OH 45229, United States
| | - P J Critser
- Cincinnati Children's Hospital Medical Center, 3333 Burnett Ave, Cincinnati, OH 45229, United States
| | - J C Woods
- Cincinnati Children's Hospital Medical Center, 3333 Burnett Ave, Cincinnati, OH 45229, United States
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Higano NS, Bates AJ, Gunatilaka CC, Hysinger EB, Critser PJ, Hirsch R, Woods JC, Fleck RJ. Bronchopulmonary dysplasia from chest radiographs to magnetic resonance imaging and computed tomography: adding value. Pediatr Radiol 2022; 52:643-660. [PMID: 35122130 PMCID: PMC8921108 DOI: 10.1007/s00247-021-05250-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 09/13/2021] [Accepted: 11/25/2021] [Indexed: 12/31/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a common long-term complication of preterm birth. The chest radiograph appearance and survivability have evolved since the first description of BPD in 1967 because of improved ventilation and clinical strategies and the introduction of surfactant in the early 1990s. Contemporary imaging care is evolving with the recognition that comorbidities of tracheobronchomalacia and pulmonary hypertension have a great influence on outcomes and can be noninvasively evaluated with CT and MRI techniques, which provide a detailed evaluation of the lungs, trachea and to a lesser degree the heart. However, echocardiography remains the primary modality to evaluate and screen for pulmonary hypertension. This review is intended to highlight the important findings that chest radiograph, CT and MRI can contribute to precision diagnosis, phenotyping and prognosis resulting in optimal management and therapeutics.
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Affiliation(s)
- Nara S. Higano
- Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Alister J. Bates
- Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Chamindu C. Gunatilaka
- Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Erik B. Hysinger
- Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA
| | - Paul J. Critser
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,Division of Cardiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Russel Hirsch
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,Division of Cardiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Jason C. Woods
- Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Division of Pulmonary Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH USA ,Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA
| | - Robert J. Fleck
- Center for Pulmonary Imaging Research, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Department of Radiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH USA ,Department of Radiology, University of Cincinnati College of Medicine, 3333 Burnet Ave., ML 5031, Cincinnati, OH 45229 USA
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Parikh PA, Shah BV, Trivedi B, Patel VB, Desai S, Nimbalkar SM, Phatak AG. A Comparison of the Pulmonary Valve, Main Pulmonary Artery, and Branch Pulmonary Artery Measurements by Echocardiography and Computed Tomography Scan. Cureus 2021; 13:e16075. [PMID: 34345556 PMCID: PMC8324428 DOI: 10.7759/cureus.16075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2021] [Indexed: 11/22/2022] Open
Abstract
Introduction: Congenital heart diseases (CHD) are one of the most commonly occurring congenital anomalies. Echocardiography is usually the initial investigation for suspected CHD. However, it is operator-dependent and limited by available chest windows. Multidetector computed tomography (MDCT) scan provides superior temporal and spatial resolution producing excellent cross-sectional anatomical images. MDCT is specifically helpful for pulmonary artery anomalies if not clearly visible on an echocardiogram. Objective and methods: The study aims to compare measurements of branch pulmonary arteries, pulmonary valve, and main pulmonary artery obtained from trans-thoracic echocardiography measurements and MDCT. Forty-nine patients younger than 17 years of age underwent MDCT, and an echocardiogram was included in the study. The measurements of the pulmonary valve, main pulmonary artery, and branch pulmonary arteries were measured on MDCT and echocardiogram. Results: Bland-Altman analysis revealed the mean difference (95% confidence limits) in measurements of diameter between echocardiogram and MDCT for the right pulmonary artery, left pulmonary artery, pulmonary valve, and main pulmonary artery, which were -0.5 (-3.1, 2.2) mm, -0.6 (-3.3, 2.1) mm, 0.7 (-2.5, 3.9) mm, and 1.2 (-6.9, 4.5) mm, respectively. Conclusion: The analysis revealed acceptable agreement in measurements of the pulmonary valve, main pulmonary artery, and branch pulmonary arteries obtained from MDCT and echocardiogram. The difference was marginally more for the main pulmonary artery compared to the pulmonary valve and branch pulmonary arteries.
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Affiliation(s)
- Priyanka A Parikh
- Department of Pediatrics, Pramukhswami Medical College, Karamsad, IND
| | - Binoy V Shah
- Department of Pediatrics, Pramukhswami Medical College, Karamsad, IND
| | - Bhadra Trivedi
- Pediatric Cardiology, Shree Krishna Hospital, Karamsad, IND
| | - Viral B Patel
- Radiodiagnosis, Pramukhswami Medical College, Karamsad, IND.,Radiodiagnosis, Shree Krishna Hospital, Karamsad, IND.,Radiodiagnosis, Bhaikaka University, Karamsad, IND
| | - Shreya Desai
- Radiodiagnosis, Pramukhswami Medical College, Karamsad, IND.,Radiodiagnosis, Shree Krishna Hospital, Karamsad, IND.,Radiodiagnosis, Bhaikaka University, Karamsad, IND
| | - Somashekhar M Nimbalkar
- Central Research Services, Bhaikaka University, Karamsad, IND.,Department of Pediatrics, Pramukhswami Medical College, Karamsad, IND
| | - Ajay G Phatak
- Central Research Services, Bhaikaka University, Karamsad, IND
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Raju SN, Pandey NN, Sharma A, Malhi AS, Deepti S, Kumar S. Pulmonary Arterial Dilatation: Imaging Evaluation Using Multidetector Computed Tomography. Indian J Radiol Imaging 2021; 31:409-420. [PMID: 34556926 PMCID: PMC8448224 DOI: 10.1055/s-0041-1734225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Pulmonary artery dilatation comprises a heterogeneous group of disorders. Early diagnosis is important as the presentation may be incidental, chronic, or acute and life threatening depending upon the etiology. Cross-sectional imaging plays an important role, with CT pulmonary angiography being regarded as the first line investigation in the evaluation of pulmonary artery pathologies. Moreover, effects of pulmonary artery lesions on proximal and distal circulation can also be ascertained with the detection of associated conditions. Special attention should also be given to the left main coronary artery and the trachea-bronchial tree as they may be extrinsically compressed by the dilated pulmonary artery. In context of an appropriate clinical background, CT pulmonary angiography also helps in treatment planning, prognostication, and follow-up of these patients. This review mainly deals with imaging evaluation of the pulmonary arterial dilatations on CT with emphasis on the gamut of etiologies in the adult as well as pediatric populations.
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Affiliation(s)
- Sreenivasa Narayana Raju
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India
| | - Niraj Nirmal Pandey
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India
| | - Arun Sharma
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India
| | - Amarinder Singh Malhi
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India
| | - Siddharthan Deepti
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi India
| | - Sanjeev Kumar
- Department of Cardiovascular Radiology and Endovascular Interventions, All India Institute of Medical Sciences, New Delhi, India
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