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Severe Bradycardia Occurring After Assisted Mouth Opening: A Case Report
Yoshio Hayakawa DDS,
 Keiko Fujii-Abe DDS, PhD,
 Takuya Nakano DDS, PhD,
 Masayuki Suzuki DDS, and
 Hiroshi Kawahara DDS, PhD
Article Category: Brief Report
Volume/Issue: Volume 69: Issue 1
Online Publication Date: Apr 04, 2022
DOI: 10.2344/anpr-68-03-07
Page Range: 46 – 48

bradycardia with a rate of 27 bpm, and there was no pulse oximeter waveform loss. During the immediate reassessment of the ECG, a Mobitz type II second-degree atrioventricular block pattern appeared that lasted ∼15 seconds ( Figure 1 B). The blood pressure was 128/73 mm Hg, and there were continued pulse oximetry waveforms. Atropine 0.5 mg was administered, the patient's heart rate increased to ∼80 bpm, and a normal sinus rhythm was noted again ( Figure 1 C). The patient's cardiovascular vital signs remained stable, and she had no other abnormal intraoperative or

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Anesthetic Management of the Trigeminocardiac Reflex During Mesiodens Removal—A Case Report
Michael D. Webb DDS and
 John H. Unkel DDS, MPA
Article Category: Research Article
Volume/Issue: Volume 54: Issue 1
Online Publication Date: Jan 01, 2007
DOI: 10.2344/0003-3006(2007)54[7:AMOTTR]2.0.CO;2
Page Range: 7 – 8

incisors were removed. As the surgeon started to reflect a palatal flap to gain access to the mesiodens, the patient experienced sinus bradycardia with a heart rate of 45 beats per minute. The electrocardiogram tracing did not appear to be a type of heart block. The blood pressure was 60/20. The surgeon was told to stop the procedure and atropine 0.4 mg was immediately given IV. The intravenous fluids were opened all the way. The heart rate increased to 140 beats per minute and the systolic blood pressure increased to 110 mm Hg. The procedure continued without further

General Anesthetic Management of a Patient With Hypertrophic Cardiomyopathy for Oral Surgery: Did Digitalis Contribute to Bradycardia?
Aiji Sato(Boku) DDS, PhD,
 Maki Morita DDS,
 MinHye So MD,
 Tetsuya Tamura MD, PhD,
 Fumiaki Sano MD,
 Yasuyuki Shibuya DDS, PhD,
 Jun Harada MD, PhD, and
 Kazuya Sobue MD, PhD
Article Category: Case Report
Volume/Issue: Volume 65: Issue 3
Online Publication Date: Jan 01, 2018
DOI: 10.2344/anpr-65-03-12
Page Range: 192 – 196

referred to the Nagoya City University Graduate School of Medical Sciences Department of Oral and Maxillofacial Surgery for evaluation of right mandibular tenderness diagnosed as osteomyelitis. Preoperative evaluation revealed moderate cardiac enlargement by chest radiograph (cardiothoracic ratio: 52%). Table 1.  Medical History Timeline* Sinus bradycardia (heart rate: 44 beats/min) and negative T waves (II, III, aV F , V3–6) were observed by 12-lead electrocardiogram

Figure 7.; Sinus bradycardia. Each cycle commences with a P wave and the PR interval is normal. Therefore, rhythms are sinus-paced and differ only in rate: normal sinus rhythm, sinus bradycardia, or sinus tachycardia. In this case, it is sinus bradycardia, because the rate is <60.
Daniel E. Becker
Figure 7.
Figure 7.

Sinus bradycardia. Each cycle commences with a P wave and the PR interval is normal. Therefore, rhythms are sinus-paced and differ only in rate: normal sinus rhythm, sinus bradycardia, or sinus tachycardia. In this case, it is sinus bradycardia, because the rate is <60.

Figure 1.; Preoperative 12-lead ECG. The patient's routine preoperative 12-lead ECG demonstrated severe sinus bradycardia (rate ∼35 bpm) and voltage criteria consistent with left ventricular hypertrophy.
Yu Sato,
 Tomoka Matsumura,
 Yushi Abe,
 Chihiro Kutsumizu, and
 Shigeru Maeda
Figure 1.
Figure 1.

Preoperative 12-lead ECG. The patient's routine preoperative 12-lead ECG demonstrated severe sinus bradycardia (rate ∼35 bpm) and voltage criteria consistent with left ventricular hypertrophy.

; Preoperative 12-lead electrocardiogram. Sinus bradycardia (heart rate 44 beats/min) and negative T wave (II, III, aVF, V3–6) were observed.
Aiji Sato(Boku),
 Maki Morita,
 MinHye So,
 Tetsuya Tamura,
 Fumiaki Sano,
 Yasuyuki Shibuya,
 Jun Harada, and
 Kazuya Sobue

Preoperative 12-lead electrocardiogram. Sinus bradycardia (heart rate 44 beats/min) and negative T wave (II, III, aVF, V3–6) were observed.

Figure 1 ; Preoperative 12-lead electrocardiography. An incomplete right bundle branch block and sinus bradycardia (heart rate, 56 bpm) were present.
Naotaka Kishimoto,
 Munenori Kato,
 Yasunori Nakanishi,
 Akari Hasegawa, and
 Yoshihiro Momota
<bold>Figure 1</bold>
Figure 1

Preoperative 12-lead electrocardiography. An incomplete right bundle branch block and sinus bradycardia (heart rate, 56 bpm) were present.

Figure 3.; Repeat 12-lead ECG 3 months later. Another 12-lead ECG performed 3 months later demonstrated bradycardia (rate ∼37 bpm), an AV junctional rhythm, but no ST segment abnormalities.
Yu Sato,
 Tomoka Matsumura,
 Yushi Abe,
 Chihiro Kutsumizu, and
 Shigeru Maeda
Figure 3.
Figure 3.

Repeat 12-lead ECG 3 months later. Another 12-lead ECG performed 3 months later demonstrated bradycardia (rate ∼37 bpm), an AV junctional rhythm, but no ST segment abnormalities.

Cardiac Arrest Upon Induction of General Anesthesia
Regina A. E. Dowdy DDS,
 Shadee. T. Mansour DDS,
 James H. Cottle DDS,
 Hannah R. Mabe DDS,
 Harry B. Weprin DMD,
 Leigh E. Yarborough DMD,
 Gregory M. Ness DDS,
 Todd M. Jacobs DMD, and
 Bryant W. Cornelius DDS, MBA, MPH
Article Category: Case Report
Volume/Issue: Volume 68: Issue 1
Online Publication Date: Apr 07, 2021
DOI: 10.2344/anpr-67-03-08
Page Range: 38 – 44

such situations. Vagal responses from stimulation such as laryngoscopy, vagotonic anesthetics, sympatholytic anesthetic agents, and β-blockers are common causes of bradycardia, which can result in cardiac arrest if left uncorrected. Hypoxia, generally resulting from airway loss, is another common cause of arrest, while hypovolemia, often compounded by hemorrhage, can result in pulseless electrical activity. 1 The National Anesthesia Clinical Outcomes Registry recently revealed that the incidence of cardiac arrest associated with anesthesia is approximately 5.6 per

Management of Patients With Cardiovascular Implantable Electronic Devices in Dental, Oral, and Maxillofacial Surgery
James Tom DDS, MS
Article Category: Research Article
Volume/Issue: Volume 63: Issue 2
Online Publication Date: Jan 01, 2016
DOI: 10.2344/0003-3006-63.2.95
Page Range: 95 – 104

considered for dental/oral surgeons after substantive review of the literature. With the increasing prevalence of such patients seeking dental, oral, and maxillofacial procedures, an in-depth review of the available evidence and current guidelines may assist the dental practitioner in delivering optimal and safe care to patients presenting with various CIEDs. PACEMAKERS Indications and Function of Pacemakers Pacemakers are generally indicated for patients suffering from symptomatic bradycardias to help initiate