CTVS

JULY 31, 2023

At CTVS, our team of board-certified thoracic surgeons routinely perform a procedure known as a thoracic sympathectomy to treat hyperhidrosis, or excessive sweating. During this surgery, part of the sympathetic chain of nerves that runs along the spine is carefully severed to halt signals that trigger the sweat glands.

Arrhythmia 52

Arrhythmia Pacemaker 52

ECG Guru

JULY 31, 2023

Broad complex tachycardia in a 78-year-old patient with coronary heart disease (CHD) and an old inferior myocardial infarction. Why is this a ventricular tachycardia (VT) and not a supraventricular tachycardia (SVT) with aberrant conduction? Broad complex tachycardia is generally about 80% likely to be ventricular in origin. However, in a patient with CHD and a history of myocardial infarction, this likelihood increases to about 90%.

Tachycardia 52

Tachycardia Myocardial Infarction Heart Disease 52

Journal of Cardiovascular Pharmacology

JULY 31, 2023

Immune checkpoint inhibitors (ICIs) are a form immunotherapy where the negative regulators of host immunity are targeted, thereby leveraging the own immune system. ICIs have significantly improved cancer survival in several advanced malignancies and there are currently over 90 different cancer indications for ICIs. The majority of patients develop immune-related adverse events (irAEs) during ICI therapy.

Cancer 40

Cancer Pharmacology Outcomes Article 40

ECG Guru

JULY 31, 2023

Here is the ECG of a 3-year-old boy. Is there cause for concern? The ECG shows a sinus rhythm with significant sinus arrhythmia. The heart rate increases with inspiration and decreases with expiration, which is called respiratory sinus arrhythmia. The QRS-axis is between 60 and 90 degrees, which is physiological at this age. The negative T-waves in V1-V3 (V4) are also age-appropriately normal.

Physiology 40

Physiology Arrhythmia 40