Wearable cardioverter defibrillator with a non-invasive blood pressure monitor

A wearable patient monitoring system, comprising:

• a support structure configured to be worn by a patient;
• a housing;
• a plurality of patient sensors including a non-invasive blood pressure (NIBP) monitor to be coupled to the patient when the patient is wearing the support structure, wherein the NIBP monitor is configured obtain a blood pressure measurement based on a pulse transit time (PTT) measurement, and wherein the plurality of patient sensors includes an ECG sensor to obtain patient ECG data when the patient is wearing the support structure;
• one or more processors in the housing and coupled to the plurality of patient sensors to collect one or more patient parameters, wherein the one or more processors are configured to receive the patient ECG data from the ECG sensor and the blood pressure measurement from the NIBP monitor to determine the PTT, wherein the patient ECG data is used to increase accuracy of the PTT measurement to generate an enhanced accuracy blood pressure measurement;
• and
• a memory coupled to the one or more processors to store the one or more patient parameters including one or more blood pressure readings obtained with the NIBP monitor;
• and
• wherein the one or more processors are configured to determine whether the patient is experiencing ventricular tachycardia (VT) based at least in part on the patient ECG data, and to determine whether the VT is perfusing VT or non-perfusing VT based at least in part on the enhanced accuracy blood pressure measurement.