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. 2010 Mar 19;8(3):741–762. doi: 10.3390/md8030741

Table 4.

Summary on case reports between 1983 and 2009 on TTX-poisoned patients.

Study Cases Grade TTX (nM)a Hypotension Sinus bradycardia ECG Artificial respiration Comments
[82] 3 1–2 no no no oxygen saturation 96–99%
[76,81] 4 1–2 4.5–21.1 no or mild no normal no mild hypercapnia
[83] 16 1–2 no eight patients had hypertension
[84] 3 1–2 no no
[75] 177 1–3 no no all recovered completely
[85] 6 1–3 no
[70] 1 2–3 yes yes normalb no hypoxemia, diabetes mellitusc
[74] 1 2–3 no no no normal arterial pO2
[86] 4 2–3 no intermittentd normal no normal blood pressure, no hypoxia
[77,80] 11 2–3 <5–5 (grade 2) no no yes (grade 3) no cardiovascular effects, no fatalities
[87] 1 3 no yes normal yes reduced sensory and motor conduction velocities, decrease in evoked amplitudes
[88] 1 3 no no normal yes decreased arterial pO2
[76,81] 1 3 28.6 yes no normal yes
[83] 1 3–4 hypertensionc no Yes (cyanosis) diabetes mellitusc, renal failure and death (intoxication by molluscs)
[89] 1 4 yes stable cardiovascular status after cardiopulmonary resuscitation; TTX-induced cranial diabetes insipidus
[65,66] 1 4 77/83 no no normal yes non-excitability of sensory and motor nerves
[85] 1 4 yes no yes cardiac arrest before admission to the ED, resuscitation to sinus rhythm, patient died
[76,81] 1 4 40.6 yes yes AV block yes diabetes mellitusc, full cardiac arrest, spontaneous circulation after resuscitation, but patient died due to multi-organ failure
[78] 1 4 114 yes yes normal yes hypothermia, blood gases were unremarkable
[79] 1 4 164 yes yes complete block of motor nerve conduction
[75] 68 4 Yes (14/68) Yes (all) five fatalities, one patient with brain damage
[62] 83 1–4 5–43 e seven fatal cases (respiratory arrest)
[63] 37 1–4 eight fatalities
[64] 53 1–4 eight fatalities
[90] 40 1–4 no fatalities
a

Reported TTX concentrations in serum or blood samples.

b

mild ST elevation.

c

pre-existing disease.

d

Cardiac dysautonomia did not correlate to TTX levels in blood [86].

e

TTX concentrations were determined in blood or urine from 38 patients [62].