Dr. Rabindranauth studies various aspects of heart health, particularly focusing on treatments for conditions such as coronary artery disease, heart valve issues, and hypertension. He explores innovative surgical options like minimally invasive coronary artery bypass grafting to improve recovery times for patients. Additionally, he examines the biological mechanisms that affect heart performance, such as the role of cyclic GMP and cyclic AMP in heart function, which can significantly influence treatment choices for patients suffering from heart-related ailments.
Key findings
Patients undergoing minimally invasive coronary artery bypass grafting (MICS CABG) left the hospital one day earlier on average (4 days vs. 5 days) and had a 70% immediate extubation rate compared to 12.7% in traditional surgery (OPCAB).
In a case study, an 82-year-old patient's giant right coronary aneurysm, larger than 2 cm, was surgically removed after being found incidentally, highlighting the need for surgical intervention rather than mere observation.
Healthy rabbits had a significant drop in oxygen consumption from 13.6 ml to 8.8 ml per minute per 100 grams of heart tissue when treated with zaprinast, while hypertensive rabbits only decreased oxygen needs slightly from 13.3 ml to 10.3 ml, illustrating differing responses to treatment based on heart condition.
Frequently asked questions
Does Dr. Rabindranauth study heart conditions?
Yes, he focuses on various heart conditions including coronary artery disease, heart valve issues, and related complications.
What treatments has Dr. Rabindranauth researched?
He has researched treatments such as minimally invasive coronary artery bypass grafting and surgical interventions for aneurysms and pseudoaneurysms.
Is Dr. Rabindranauth's work relevant to patients undergoing dialysis?
Yes, his research includes effective treatments for complications related to dialysis access grafts, helping those patients manage risks.
What impact does Dr. Rabindranauth's research have on patients with high blood pressure?
His findings help understand how high blood pressure alters heart function, which can inform better treatment strategies for related heart issues.
How does Dr. Rabindranauth's work improve heart surgery outcomes?
His studies on minimally invasive techniques aim to reduce recovery time and improve patient safety during heart surgeries.
Publications in plain English
Transcatheter Aortic Valve Replacement Incidentalomas: A Multimodality Imaging Case of Giant Right Coronary Aneurysm.
2018
Case reports in cardiology
Janjua J, Odigie-Okon EG, Rabindranauth P, Wittchow RJ, Riaz A
Plain English This study looked at a case of an 82-year-old man who was found to have a giant aneurysm in his right coronary artery while being evaluated for heart valve replacement surgery. The aneurysm, which was larger than 2 centimeters, did not cause any symptoms but was pressing on his heart chambers. The patient underwent surgery to remove the aneurysm and had a successful recovery, emphasizing that giant coronary aneurysms need to be treated surgically rather than just monitored, as they can lead to serious complications.
Who this helps: This helps patients with heart conditions and their doctors by providing crucial information for managing similar cases.
Plain English This study looked at two heart surgery methods: a minimally invasive approach (MICS CABG) and a traditional approach (OPCAB). Researchers found that patients who had MICS CABG typically had fewer bypasses (2.1 vs. 3.2), could breathe independently in the operating room 70% of the time compared to just 12.7% for OPCAB, and spent less time in the hospital (4 days vs. 5 days). This is important because quicker recovery and fewer complications can help patients go back to their daily lives sooner.
Who this helps: Patients undergoing coronary artery bypass surgery.
Transluminal stent-graft repair for pseudoaneurysm of PTFE hemodialysis grafts.
1998
Journal of endovascular surgery : the official journal of the International Society for Endovascular Surgery
Rabindranauth P, Shindelman L
Plain English This study looked at a new treatment method for two men who developed a dangerous swelling, or pseudoaneurysm, near their dialysis access grafts. Using a special type of stent and graft, doctors successfully removed the anomalies during surgery, with both patients recovering well and their grafts remaining fully functional for up to six months afterward. This approach is important because it shows a safe and effective way to treat these complications in dialysis patients, potentially preventing serious health issues.
Who this helps: Patients undergoing dialysis with PTFE grafts.
Plain English This study looked at how a drug called zaprinast affects heart function in rabbits with a specific kind of high blood pressure that leads to heart enlargement. The researchers found that zaprinast increased the levels of a molecule called cyclic GMP in the hearts of both healthy and hypertensive rabbits, but only the healthy rabbits showed a significant drop in how much oxygen their hearts needed. Specifically, healthy rabbits treated with zaprinast needed 8.8 ml of oxygen per minute per 100 grams of heart tissue, compared to 13.6 ml without the drug; however, the hypertensive rabbits only saw a small decrease in oxygen consumption, from 13.3 ml to 10.3 ml. This matters because it suggests that the way the heart uses oxygen changes in conditions of high blood pressure, which could influence how we treat patients with heart disease.
Who this helps: This helps patients with high blood pressure and related heart issues.
Plain English This study looked at how lowering a substance called cyclic GMP affects heart function, especially in dogs with normal hearts and those with a heart condition called left ventricular hypertrophy (LVH). The researchers found that lowering cyclic GMP while also raising another substance, cyclic AMP, improved heart performance—specifically, the heart's ability to pump effectively (increased force and work). For example, the heart's work increased from approximately 1779 to 2541 in normal dogs and from 1157 to 1839 in dogs with LVH after treatment.
Who this helps: This benefits patients with heart conditions, especially those with LVH.
Plain English This study looked at how a substance called cyclic GMP affects the heart's oxygen use, especially in rabbits with high blood pressure caused by kidney issues. The researchers found that while the rabbits with kidney-induced high blood pressure had nearly double the levels of cyclic GMP compared to normal rabbits (about 12 versus 6 pmoles/g), their hearts still consumed a similar amount of oxygen when treated with a specific drug, suggesting that the heart's response to cyclic GMP is altered in these cases. This finding is important because it highlights how high blood pressure can change heart function, which may impact treatment strategies.
Who this helps: This helps doctors and researchers better understand heart issues in patients with kidney problems.
Plain English This study looked at how a specific type of receptor activity in the heart affects its response to stimulation, particularly in rabbits with normal hearts and those with enlarged hearts due to a hormone called thyroxine. The researchers found that the receptor activity did not interfere with the heart's response to stimulation, regardless of whether the heart was normal or enlarged, meaning that the heart could respond well to stimulation in both cases. For example, in healthy rabbits, the heart's ability to thicken during stimulation increased significantly, while in the enlarged hearts, there was no such increase.
Who this helps: This information is valuable for researchers and doctors working to understand heart function and treatment strategies for patients with heart conditions.
The negative functional and metabolic effects of muscarinic stimulation are enhanced by beta-adrenergic activation in control and hypertrophic dog hearts in vivo.
Plain English This study looked at how certain heart receptors influence heart function in healthy dogs and those with a heart condition called left ventricular hypertrophy (LVH). The researchers found that when the heart was stimulated (using drugs acetylcholine and isoproterenol), it pumped less effectively and used more energy under certain conditions. For example, the maximum force produced by the heart decreased from 14.5 grams to 10.5 grams when both drugs were administered together, showing that the addition of acetylcholine worsened the heart's performance during stimulation.
Who this helps: This research benefits cardiologists and patients with heart conditions, helping them understand treatments that can impact heart function.
Plain English This study looked at how measuring certain substances in the blood and tissue can help doctors make better choices about treating breast cancer. The research found that various tissue markers, like hormone receptors and specific proteins, can guide treatment decisions and monitor the risk of cancer coming back. This is important because using these markers could lead to more personalized and effective care for breast cancer patients.
Who this helps: This helps patients with breast cancer and their doctors.