Priyadarshini Loganathan

Dr. Priyadarshini Loganathan

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2018 in Clinical and Experimental Gastroenterology
Verified
Journal Article
Open access
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DADanny J Avalos
Danny J Avalos
ISIrene Sarosiek
Irene Sarosiek
PLPriyadarshini Loganathan
Priyadarshini Loganathan
Richard MccallumRichard Mccallum
Richard Mccallum
Diabetic gastroparesis (DMGP) is a condition of delayed gastric emptying after gastric outlet obstruction has been excluded. Symptoms of nausea, vomiting, early satiety, bloating, and abdominal pain are associated with DMGP. Uncontrolled symptoms can lead to overall poor quality of life and financial burdens on the healthcare system. A combination of antiemetics and prokinetics is used in symptom control; metoclopramide is the main prokinetic available for clinical use and is the only U.S. Food and Drug Administration-approved agent in the United States. However, a black box warning in 2009 reporting its association with tardive dyskinesia and recommending caution in chronically using this agent beyond 3 months has decreased its role in clinical practice. There is an unmet need for new prokinetics with good efficacy and safety profiles. Currently, there are several new drugs with different mechanisms of action in the pipeline that are under investigation and show promising preliminary results. Surgically combining gastric electrical stimulation with pyloroplasty is considered “gold” standard. Advances in therapeutic endoscopic intervention with gastric per-oral endoscopic pyloromyotomy have also been shown to improve gastric emptying and gastroparesis (GP) symptoms. In this review, we will comment on the challenges encountered when managing patients with DMGP and provide an update on advances in drug development and endoscopic and surgical interventions.

15 May 2024 in Endoscopic Ultrasound
Verified
Journal Article
Open access
VMVishali Moond
Vishali Moond
PLPriyadarshini Loganathan
Priyadarshini Loganathan
BKBhargav Koyani
Bhargav Koyani
SKShahab R. Khan
Shahab R. Khan
LKLena L. Kassab
Lena L. Kassab
DADouglas G. Adler
Douglas G. Adler
EUS-guided hepaticogastrostomy (EUS-HGS) is one of the preferred methods in biliary drainage where ERCP fails or is contraindicated. The clinical outcomes of EUS-HGS are not well studied because of variability in procedure technique. We conducted a search of multiple electronic databases and conference proceedings from inception through January 2023. The clinical outcomes studied were pooled technical success, clinical success, and adverse events. Standard meta-analysis methods were used using the random-effects model, and heterogeneity was studied by I 2 statistics. We analyzed 44 studies, which included 19 prospective and 25 retrospective studies. The pooled technical success rate of EUS-HGS was 94.4% (confidence interval [CI], 92.4%–95.9%; I 2 = 0%), and the pooled clinical success rate was 88.6% (CI, 83.7%–92.2%; I 2 = 0%). The pooled adverse outcomes with EUS-HGS were 23.8% (CI, 19.6%–28.5%; I 2 = 0%). The mild adverse event rate associated with HGS was 5.8% (4.2%–8.1%; I 2 = 0%), moderate adverse event rate was 12.1% (9.1%–15.8%; I 2 = 16%), and severe adverse event rate was 4.2% (3.0%–5.7%; I 2 = 61%), whereas fatal adverse event rate was 3.2% (1.9%–5.4%; I 2 = 62%). On subgroup analysis, the pooled rate of adverse events of EUS-guided hepaticogastrostomy with antegrade stenting was 13.3% (95% CI, 8.2%–21.0%). The pooled technical success with EUS-guided hepaticogastrostomy with antegrade stenting was 89.7% (95% CI, 82.6%–94.2%), and clinical success was 92.5% (95% CI, 77.9%–97.7%). On the basis of our analysis of EUS-HGS, the overall technical success was 94.4%, and the clinical success rate was 88.6%, and the overall adverse events were reported to be 23.8%. These data can also help improve the clinical benefits of EUS-HGS in the selected patients in whom it is performed.

18 November 2024 in Pharmaceuticals
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Journal Article
Open access
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PLPriyadarshini Loganathan
Priyadarshini Loganathan
MGMahesh Gajendran
Mahesh Gajendran
Hemant GoyalHemant Goyal
Hemant Goyal
Cannabis, derived from Cannabis sativa plants, is a prevalent illicit substance in the United States, containing over 400 chemicals, including 100 cannabinoids, each affecting the body’s organs differently upon ingestion. Cannabis hyperemesis syndrome (CHS) is a gut–brain axis disorder characterized by recurring nausea and vomiting intensified by excessive cannabis consumption. CHS often goes undiagnosed due to inconsistent criteria, subjective symptoms, and similarity to cyclical vomiting syndrome (CVS). Understanding the endocannabinoid system (ECS) and its dual response (pro-emetic at higher doses and anti-emetic at lower doses) is crucial in the pathophysiology of CHS. Recent research noted that type 1 cannabinoid receptors in the intestinal nerve plexus exhibit an inhibitory effect on gastrointestinal motility. At the same time, the thermoregulatory function of endocannabinoids might explain compulsive hot bathing in CHS patients. The prevalence of cannabis CHS is expected to rise as legal restrictions on its recreational use decrease in several states. Education and awareness are vital in diagnosing and treating CHS as its prevalence increases. This comprehensive review explores the ECS’s involvement, CHS management approaches, and knowledge gaps to enhance understanding of this syndrome.

30 March 2025 in Clinical Endoscopy
Verified
Journal Article
Open access
SMSheza GENERAL Malik
Sheza GENERAL Malik
PLPriyadarshini Loganathan
Priyadarshini Loganathan
HKHajra Khan
Hajra Khan
ASAbul Hasan Shadali
Abul Hasan Shadali
PYPradeep Yarra
Pradeep Yarra
SKShivangi T. Kothari
Shivangi T. Kothari
Background/Aims: Self-expanding metallic stents (SEMS) are an alternative to emergency surgery (ES) for malignant colorectal obstruction. This study aimed to compare surgical outcomes between SEMS as a bridge to surgery (BTS) and ES in patients with malignant colorectal obstruction.Methods: A comprehensive database search was conducted until October 2023 to compare outcomes between SEMS as a BTS and ES. A subgroup analysis of results by malignancy site was performed.Results: We analyzed 57 studies, including 7,223 patients over a mean duration of 35.4 months. SEMS as a BTS showed clinical and technical success rates of 88.0% (95% confidence interval [CI], 86.1%–90.1%; I2=68%) and 91.6% (95% CI, 89.7%–93.7%; I2=66%), respectively. SEMS as a BTS revealed reduced postoperative adverse events (odds ratio [OR], 0.51; 95% CI, 0.41–0.63; I2=70%; p<0.001) and 30-day mortality (OR, 0.52; 95% CI, 0.37–0.72; I2=10%; p<0.001) compared to ES. Subgroup analysis showed postoperative mortality of 5% and 1.5% for left- and right-sided malignancies, respectively. Adverse events were 15% and 33% for the right and left colon, respectively.Conclusions: SEMS as a BTS demonstrated a higher success rate, fewer postoperative adverse events, and a reduced 30-day mortality rate than ES, supporting its use as the preferred initial intervention for right- and left-sided obstructions and indicating broader clinical adoption.

30 November 2024 in Clinical Endoscopy
Verified
Journal Article
Open access
VMVishali Moond
Vishali Moond
PLPriyadarshini Loganathan
Priyadarshini Loganathan
SMSheza GENERAL Malik
Sheza GENERAL Malik
DDDushyant Singh Dahiya
Dushyant Singh Dahiya
BMBabu P. Mohan
Babu P. Mohan
SCSaurabh Chandan
Saurabh Chandan
Background/Aims: Cold snare polypectomy (CSP) is routinely performed for small colorectal polyps (≤10 mm). However, challenges include insufficient resection depth and immediate bleeding, hindering precise pathological evaluation. We aimed to compare the outcomes of cold endoscopic mucosal resection (CEMR) with that of CSP for colorectal polyps ≤10 mm, using data from randomized controlled trials (RCTs).Methods: Multiple databases were searched in December 2023 for RCTs reporting outcomes of CSP versus CEMR for colorectal polyps ≤10 mm in size. Our primary outcomes were rates of complete and en-bloc resections, while our secondary outcomes were total resection time (seconds) and adverse events, including immediate bleeding, delayed bleeding, and perforation.Results: The complete resection rates did not significantly differ (CSP, 91.8% vs. CEMR 94.6%), nor did the rates of en-bloc resection (CSP, 98.9% vs. CEMR, 98.3%) or incomplete resection (CSP, 6.7% vs. CEMR, 4.8%). Adverse event rates were similarly insignificant in variance. However, CEMR had a notably longer mean resection time (133.51 vs. 91.30 seconds).Conclusions: Our meta-analysis of seven RCTs showed that while both CSP and CEMR are equally safe and effective for resecting small (≤10 mm) colorectal polyps, the latter is associated with a longer resection time.

11 July 2024 in Medicina
Verified
Journal Article
Open access
PDF file
PLPriyadarshini Loganathan
Priyadarshini Loganathan
MGMahesh Gajendran
Mahesh Gajendran
APAbhilash Perisetti
Abhilash Perisetti
Hemant GoyalHemant Goyal
Hemant Goyal
RMRupinder Mann
Rupinder Mann
CUChandraprakash Umapathy
Chandraprakash Umapathy
Gastroesophageal reflux disease (GERD) is one of the most common diseases that occurs secondary to failure of the antireflux barrier system, resulting in the frequent and abnormal reflux of gastric contents to the esophagus. GERD is diagnosed in routine clinical practice based on the classic symptoms of heartburn and regurgitation. However, a subset of patients with atypical symptoms can pose challenges in diagnosing GERD. An esophagogastroduodenoscopy (EGD) is the most common initial diagnostic test used in the assessment for GERD, although half of these patients will not have any positive endoscopic findings suggestive of GERD. The advanced endoscopic techniques have improved the diagnostic yield of GERD diagnosis and its complications, such as Barrett’s esophagus and early esophageal adenocarcinoma. These newer endoscopic tools can better detect subtle irregularities in the mucosa and vascular structures. The management options for GERD include lifestyle modifications, pharmacological therapy, and endoscopic and surgical interventions. The latest addition to the armamentarium is the minimally invasive endoscopic interventions in carefully selected patients, including the electrical stimulation of the LES, Antireflux mucosectomy, Radiofrequency therapy, Transoral Incisionless Fundoplication, Endoscopic Full-Thickness plication (GERDx™), and suturing devices. With the emergence of these advanced endoscopic techniques, it is crucial to understand their selection criteria, advantages, and disadvantages.